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language: node_js
node_js:
- 8
- 10
before_script:
- 'npm install markdown-it@$MD_VERSION'
env:
- MD_VERSION=9
- MD_VERSION=10
- MD_VERSION=latest

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The MIT License (MIT)
Copyright (c) 2016 Blade Barringer
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# markdown-it-link-attributes
> Link attributes plugin for [markdown-it](https://github.com/markdown-it/markdown-it) markdown parser.
## Install
node.js, browser:
```bash
npm install markdown-it-link-attributes --save
bower install markdown-it-link-attributes --save
```
## Use
### Basic Configuration
You can pass an object with an attrs property. Each link parsed with this config will have the passed attributes.
```js
var md = require('markdown-it')()
var mila = require('markdown-it-link-attributes')
md.use(mila, {
attrs: {
target: '_blank',
rel: 'noopener'
}
})
var result = md.render('[Example](https://example.com')
result // <a href="https://example.com" target="_blank" rel="noopener">Example</a>
```
If the `linkify` option is set to `true` on `markdown-it`, then the attributes will be applied to plain links as well.
```js
var md = require('markdown-it')({
linkify: true
})
md.use(mila, {
target: '_blank',
rel: 'noopener'
})
var html = md.render('foo https://google.com bar')
html // <p>foo <a href="https://google.com" target="_blank" rel="noopener">https://google.com</a> bar</p>
```
### Pattern
You can also specify a pattern property. The link's href property will be checked against the pattern RegExp provided and only apply the attributes if it matches the pattern.
```js
md.use(mila, {
pattern: /^https:/,
attrs: {
target: '_blank',
rel: 'noopener'
}
})
var matchingResult = md.render('[Matching Example](https://example.com')
var ignoredResult = md.render('[Not Matching Example](http://example.com')
matchingResult // <a href="https://example.com" target="_blank" rel="noopener">Matching Example</a>
ignoredResult // <a href="http://example.com">Not Matching Example</a>
```
### Applying classes
You can either apply a `class` to a link by using a `class` or a `className` property. Either one will work, but use only one, not both.
```js
md.use(mila, {
attrs: {
class: 'my-class'
}
})
// or
md.use(mila, {
attrs: {
className: 'my-class'
}
})
```
### Multiple Configurations
Alternatively, you can pass an Array of configurations. The first pattern to match will be applied to the link.
```js
md.use(mila, [{
pattern: /^https?:\/\//,
attrs: {
class: 'external-link'
}
}, {
pattern: /^\//,
attrs: {
class: 'absolute-link'
}
}, {
pattern: /blue/,
attrs: {
class: 'link-that-contains-the-word-blue'
}
}])
var externalResult = md.render('[external](https://example.com')
var absoluteResult = md.render('[absolute](/some-page')
var blueResult = md.render('[blue](relative/link/with/blue/in/the/name')
externalResult // <a href="https://example.com" class="external-link">external</a>
absoluteResult // <a href="/some-page" class="absolute-link">absolute</a>
blueResult // <a href="relative/link/with/blue/in/the/name" class="link-that-contains-the-word-blue">blue</a>
```
If multiple patterns match, the first configuration to match will be used.
```
// This matches both the "starts with http or https" rule and the "contains the word blue" rule.
// Since the http/https rule was defined first, that is the configuration that is used.
var result = md.render('[external](https://example.com/blue')
result // <a href="https://example.com/blue" class="external-link">external</a>
```
## Usage in the browser
_Differences in browser._ If you load script directly into the page, without a package system, the module will add itself globally as `window.markdownitLinkAttributes`.
You need to load `dist/markdown-it-link-attributes.min.js`, if you don't use a build system.
## Testing
This plugin is tested against markdown-it @ 9, 10 and latest
## License
[MIT](https://github.com/markdown-it/markdown-it-footnote/blob/master/LICENSE)

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'use strict'
// Adapted from https://github.com/markdown-it/markdown-it/blob/fbc6b0fed563ba7c00557ab638fd19752f8e759d/docs/architecture.md
function findFirstMatchingConfig (link, configs) {
var i, config
var href = '/out/uri=' + link.attrs[link.attrIndex('href')][1]
for (i = 0; i < configs.length; ++i) {
config = configs[i]
// if there is no pattern, config matches for all links
// otherwise, only return config if href matches the pattern set
if (!config.pattern || new RegExp(config.pattern).test(href)) {
return config
}
}
}
function applyAttributes (idx, tokens, attributes) {
Object.keys(attributes).forEach(function (attr) {
var attrIndex
var value = attributes[attr]
if (attr === 'className') {
// when dealing with applying classes
// programatically, some programmers
// may prefer to use the className syntax
attr = 'class'
}
attrIndex = tokens[idx].attrIndex(attr)
if (attrIndex < 0) { // attr doesn't exist, add new attribute
tokens[idx].attrPush([attr, value])
} else { // attr already exists, overwrite it
tokens[idx].attrs[attrIndex][1] = value // replace value of existing attr
}
})
}
function markdownitLinkAttributes (md, configs) {
if (!configs) {
configs = []
} else {
configs = Array.isArray(configs) ? configs : [configs]
}
Object.freeze(configs)
var defaultRender = md.renderer.rules.link_open || this.defaultRender
md.renderer.rules.link_open = function (tokens, idx, options, env, self) {
var config = findFirstMatchingConfig(tokens[idx], configs)
var attributes = config && config.attrs
if (attributes) {
applyAttributes(idx, tokens, attributes)
}
// pass token to default renderer.
return defaultRender(tokens, idx, options, env, self)
}
}
markdownitLinkAttributes.defaultRender = function (tokens, idx, options, env, self) {
return self.renderToken(tokens, idx, options)
}
module.exports = markdownitLinkAttributes

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{
"name": "markdown-it-link-attributes",
"version": "3.0.0",
"description": "A markdown-it plugin to configure the attributes for links",
"main": "index.js",
"scripts": {
"build": "node tasks/build.js && npm run minify",
"minify": "uglifyjs dist/markdown-it-link-attributes.js > dist/markdown-it-link-attributes.min.js",
"lint": "standard | snazzy",
"pretest": "npm run lint && npm run build",
"test": "mocha",
"prepublishOnly": "npm run build"
},
"repository": {
"type": "git",
"url": "git+https://github.com/crookedneighbor/markdown-it-link-attributes"
},
"keywords": [
"markdown",
"markdown-it",
"markdown-it-plugin"
],
"author": "Blade Barringer <blade@crookedneighbor.com>",
"license": "MIT",
"bugs": {
"url": "https://github.com/crookedneighbor/markdown-it-link-attributes"
},
"homepage": "https://github.com/crookedneighbor/markdown-it-link-attributes",
"devDependencies": {
"browserify": "^16.5.0",
"chai": "^4.1.2",
"chalk": "^2.1.0",
"check-ecmascript-version-compatibility": "^0.1.1",
"mocha": "^6.2.1",
"rimraf": "^3.0.0",
"sinon": "^7.5.0",
"sinon-chai": "^3.3.0",
"snazzy": "^8.0.0",
"standard": "^14.3.1",
"uglify-js": "^3.1.0"
},
"standard": {
"globals": [
"after",
"afterEach",
"before",
"beforeEach",
"context",
"describe",
"expect",
"it",
"sandbox",
"xdescribe",
"xcontext",
"xit"
],
"ignore": [
"dist/"
]
}
}

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [11.0.1] - 2020-09-14
### Fixed
- Fix blockquote lazy newlines, #696.
- Fix missed mappings for table rows, #705.
## [11.0.0] - 2020-05-20
### Changed
- Bumped `linkify-it` to 3.0.0, #661 + allow unlimited `.` inside links.
- Dev deps bump.
- Switch to `nyc` for coverage reports.
- Partially moved tasks from Makefile to npm scripts.
- Automate web update on npm publish.
### Fixed
- Fix em- and en-dashes not being typographed when separated by 1 char, #624.
- Allow opening quote after another punctuation char in typographer, #641.
- Assorted wording & typo fixes.
## [10.0.0] - 2019-09-11
### Security
- Fix quadratic parse time for some combinations of pairs, #583. Algorithm is
now similar to one in reference implementation.
### Changed
- Minor internal structs change, to make pairs parse more effective (cost is
linear now). If you use external "pairs" extensions, you need sync those with
"official ones". Without update, old code will work, but can cause invalid
result in rare case. This is the only reason of major version bump. With high probability you don't need to change your code, only update version dependency.
- Updated changelog format.
- Deps bump.
## [9.1.0] - 2019-08-11
### Changed
- Remove extra characters from line break check. Leave only 0x0A & 0x0D, as in
CommonMark spec, #581.
## [9.0.1] - 2019-07-12
### Fixed
- Fix possible corruption of open/close tag levels, #466
## [9.0.0] - 2019-07-09
### Changed
- Updated CM spec compatibility to 0.29.
- Update Travis-CI node version to actual (8 & latest).
- Deps bump.
## [8.4.2] - 2018-02-15
### Fixed
- Fix `--no-html` CLI option, #476.
## [8.4.1] - 2018-02-15
### Fixed
- Fix smartquotes around softbreaks, #430.
## [8.4.0] - 2017-08-24
### Changed
- Updated CM spec compatibility to 0.28.
## [8.3.2] - 2017-08-03
### Fixed
- Fix blockquote termination inside lists, #386.
## [8.3.1] - 2017-03-06
### Fixed
- Fix blockquote termination by list item, #338.
## [8.3.0] - 2017-02-16
### Changed
- Remove tabs at the beginning of the line in paragraphs.
- Better error message for bad input type, #324.
### Fixed
- Fix table indentation issues, #325, #224.
- Fix blockquote termination inside indented lists, #329.
## [8.2.2] - 2016-12-15
### Added
- Add `-o` / `--output` option to CLI, #312.
## [8.2.1] - 2016-12-02
### Fixed
- Add missed h2..h6 to whitelisted block tags.
## [8.2.0] - 2016-12-01
### Changed
- Updated CM spec compatibility to 0.27 (no significant changes).
### Fixed
- Fix backticks handle inside tables, #303.
- Fix edge case for fenced blocks with `~~~` in info, #301.
- Fix fallback to reference if link is not valid, #302.
## [8.1.0] - 2016-11-03
### Changed
- Make link parse helpers (`md.helpers`) pluggable, #299.
## [8.0.1] - 2016-10-18
### Fixed
- Tables: allow tab characters in markup
## [8.0.0] - 2016-09-16
### Changed
- Benchmarks src cleanup.
- Remove testing in old nodes (but still use es5).
- Updated CM spec compatibility to 0.26 (see list below):
- Two consecutive newlines no longer terminate a list.
- Ordered list terminating a paragraph can now only start with 1.
- Adjust emphasis algorithm (`*foo**bar**baz*` is now parsed as `<strong>`
inside `<em>`).
- Fix tab width calculation inside lists and blockquotes.
## [7.0.1] - 2016-08-16
### Fixed
- Fence renderer: fix concat of class array, #276.
- Code renderer: do not render double space before attrs, #275.
- Replacer: disable replacements inside autolinks, #272.
## [7.0.0] - 2016-06-22
### Changed
- Bump `linkify-it` dependency to 2.0.0. `---` no longer terminates
autodetected links by default. `md.linkifier.set('---', true)` will return old
behaviour.
- Major version bumped, because internals or `linkify-it` was changed.
You will not be affected anyhow, if not used direct access to
`require('linkify-it/re')` for customizations.
## [6.1.1] - 2016-06-21
### Changed
- Render `code_inline` & `code_block` attributes if exist.
## [6.1.0] - 2016-06-19
### Changed
- Updated `fence` renderer to not mutate token. Token stream should be
immutable after renderer call.
## [6.0.5] - 2016-06-01
### Fixed
- Process `\r` the same way as `\n` and `\r\n\`, #252.
## [6.0.4] - 2016-05-30
### Added
- Added `Token.attrGet()` method for convenience, #251.
## [6.0.3] - 2016-05-30
### Security
- Security fix: possible ReDOS in `linkify-it` (forced bump of `linkify-it` &
`uc-micro` dependencies). New installs will use fixed packages automatically,
but we bumped `markdown-it` version for sure & for web builds.
## [6.0.2] - 2016-05-16
### Fixed
- Fix: should not escape twice content of image alt attribute, #246.
## [6.0.1] - 2016-04-02
### Fixed
- Improve support of missing values in tables, #224.
## [6.0.0] - 2016-02-11
### Changed
- Maintenance release. Version bump caused by notable changes in CM spec
(multiline setext headers, no spaces inside links, ...). API was not changed.
- Fit CM 0.24 spec requirements.
### Fixed
- Fixed nesting limit check in inline blocks, #197.
- Fixed posible tail loss in CLI ouput.
## [5.1.0] - 2016-01-07
### Added
- Token: added `.attrSet()` & `.attrJoin()` methods.
- Highlighter: allow wrapper override (if result starts with "<pre").
## [5.0.3] - 2016-01-04
### Fixed
- Allow single column and mismatched columns count in tables.
- Smartquotes: take into account adjacent tokens.
- Fill `content` property in image token with `alt` source.
## [5.0.2] - 2015-11-20
### Fixed
- Fix meta information (`token.markup` and `token.info`) for autolink tokens.
## [5.0.1] - 2015-10-30
### Fixed
- Improved tables compatibility with github, #120.
## [5.0.0] - 2015-10-05
### Changed
- Internal API change. Due to new CM spec requirements, we had to update
internals. That should not touch ordinary users, but can affect some external
plugins. If you are plugin developper - see migration guide:
https://github.com/markdown-it/markdown-it/blob/master/docs/5.0_migration.md.
- Updated CM spec compatibility to 0.22 (see list below).
- Keep tabs (don't replace with spaces).
- Don't wrap iframes with paragraphs.
- Rewritten emphasis algorithm.
### Fixed
- Fix closure compiler collisions (don't use reserved words), #159.
## [4.4.0] - 2015-07-18
### Changed
- Updated HTML blocks logic to CM 0.21 spec.
- Minor fixes.
## [4.3.1] - 2015-07-15
### Security
- Fix class name injection in fence renderer.
### Fixed
- Allow numbered lists starting from zero.
## [4.3.0] - 2015-06-29
### Changed
- `linkify-it` dependency update (1.2.0). Now accepts dash at the end of links.
## [4.2.2] - 2015-06-10
### Changed
- CM spec 0.20.
### Added
- Added support for multichar substituition in smartquites, #115.
### Fixed
- Fixed code block render inside blockquites, #116.
- Doc fixes.
## [4.2.1] - 2015-05-01
### Changed
- Minor emphasis update to match CM spec 0.19.
## [4.2.0] - 2015-04-21
### Changed
- Bumped [linkify-it](https://github.com/markdown-it/linkify-it) version to
1.1.0. Now links with IP hosts and without protocols are not linkified by
default, due possible collisions with some version numbers patterns (0.5.0.0).
You still can return back old behaviour by `md.linkify.set({ fuzzyIP: true })`.
## [4.1.2] - 2015-04-19
### Changed
- Bumped linkifier version. More strict 2-chars tald support for links without
schema. Should not linkify things like `io.js` and `node.js`.
## [4.1.1] - 2015-04-15
### Fixed
- Improved pipe chars support in table cells, #86 (thanks to @jbt).
## [4.1.0] - 2015-03-31
### Security
- Disabled `data:` URLs by default (except some image mimes), to avoid
possible XSS. Version bumped, because features changed (formally). If you did
not used `data:` URLs, consider this version as 4.0.4 (no API changes).
### Changed
- Simplified link validator code. Now more easy to understand and to copy
into your projects for customization.
## [4.0.3] - 2015-03-25
### Changed
- Updated linkifier.
- Smartquotes rule cleanup (#76).
### Fixed
- Fixed replacements rule bug in PhantomJS (#77).
## [4.0.2] - 2015-03-22
### Fixed
- Fixed emphasis `marker` fields in tokens (#69).
- Fixed html block tokens with numbers in name (#74).
## [4.0.1] - 2015-03-13
### Added
- Added custom container plugin demo.
### Changed
- Updated `linkify-it` version.
## [4.0.0] - 2015-03-11
### Changed
- Breaking internal API changes. See [v4 migration notes](https://github.com/markdown-it/markdown-it/blob/master/docs/4.0_migration.md). In usual case you will need to update plugins.
- Token internals changed
- Unified the most of renderer methods.
- Changed tokens creation - use `state.push(...)` (see sources)
- Moved `normalizeUrl()` to root class as `.normalizeLink()` &
added `normalizeLinkText()` method.
- Moved `.validateUrl()` to root class and simplified logic - no more need to
replace entities.
- Joined md unescape & replace entities logic to `utils.unescapeAll()`.
- Removed `replaceEntities()` in `utils`.
- `md.utils.lib` now exposes useful libs for plugins.
- Use entities data from external package.
### Fixed
- Fixed emphasis regression, caused by CM v0.18 spec (#65).
## [3.1.0] - 2015-03-05
### Changed
- Spec conformance update to 0.18.
- Significantly improved autolinking quality (use `linkify-it` package), #2.
### Fixed
- Rewritten links normalizer to solve different edge cases (use `mdurl`
package), #29.
- Moved link title entities replace out of renderer.
- Fixed escaped entities in links (`foo\&amp;/bar`).
- Improved smartquotes logic, #61.
## [3.0.7] - 2015-02-22
### Added
- Added basic CLI support.
### Changed
- Use external package for unicode data (punctuation).
### Fixed
- Added \v \f to valid whitespaces.
- Match table columns count by header.
## [3.0.6] - 2015-02-12
### Added
- Sync scroll result => source in demo.
### Changed
- Moved `normalizeReference()` to utils.
### Fixed
- Fixed hang on long vertical list of links. Appeared in 3.0.5. See #54 for
details. Thanks to @fengmk2 for report!
- Table lines now can have escaped pipe char `\|` (#5).
## [3.0.5] - 2015-02-06
### Changed
- Significantly improved tests coverage (with dead code removal and other
related things).
### Fixed
- Fixed link validator - could skip some kind of javascript links with uppercase
digital entities (thanks to @opennota)
## [3.0.4] - 2015-01-13
### Changed
- Improved errors processing in url normalizer (for broken sequences).
- Improved nesting limit processing in inline parser.
- Reorganized tests & improved coverage.
- Show inline diffs for failed tests.
## [3.0.3] - 2015-01-11
### Fixed
- Fixed punctuation check in emphasis.
## [3.0.2] - 2015-01-09
### Fixed
- Allow dashes in HTML tag names (needed for custom HTML tags).
## [3.0.1] - 2015-01-07
### Changed
- Added # to terminator chars.
### Fixed
- Improved link encoder - fix invalid surrogates to avoid errors.
## [3.0.0] - 2015-01-04
### Changed
- Big split. All "rare" rules moved to external plugins (deflist, abbr, footnote,
sub, sup, ins, mark).
- Updated CM spec conformance to v0.15 (better unicode support).
- Added `md` (parser instance) link to all state objects (instead of former
options/parser).
- References/Footnotes/Abbrs moved to `block` chain.
- Input normalization moved to `core` chain.
- Splitted links and images to separate rules.
- Renamed some rules.
- Removed `full` preset. Not needed anymore.
- enable/disable methods now throw by default on invalid rules (exceptions can
be disabled).
- Replace NULL characters with 0xFFFD instead of strip.
- Removed custom fences sugar (overcomplication).
- Rewritten link components parse helpers.
- More functions in `md.utils`.
### Fixed
- Fixed inline html comments & cdata parse.
## [2.2.1] - 2014-12-29
### Added
- Added development info.
### Changed
- .use() now pass any number of params to plugins.
### Fixed
- Fixed line breaks in definitions lists.
## [2.2.0] - 2014-12-28
### Added
- API docs.
- Added 'zero' preset.
### Changed
- Updated CM spec conformance to v0.13.
### Fixed
- Fixed several crashes, when some basic rules are disabled
(block termination check, references check).
## [2.1.3] - 2014-12-24
### Added
- Added curring to `set`/`configure`/`enable`/`disable` methods.
### Changed
- Demo rework - now can include plugins.
- Docs update.
## [2.1.2] - 2014-12-23
### Changed
- Exposed helpers into parser instances (for plugins).
- Removed utils from global export - been in instances seems enougth.
- Refactored demo & added markdown-it-emoji to it.
## [2.1.1] - 2014-12-22
### Changed
- Refreshed browser builds, missed in prev release.
- Minor changes.
## [2.1.0] - 2014-12-21
### Changed
- Separated method to enable rules by whitelist (enableOnly).
- Changed second param of enable/disable ruler methods.
- Shortcuts in main class for bulk enable/disable rules.
- ASCII-friendly browserified files.
- Separate package for spec tests.
## [2.0.0] - 2014-12-20
### Changed
- New project name & home! Now it's `markdown-it`,
- Sugar for constructor call - `new` is not mandatory now.
- Renamed presets folder (configs -> presets).
[11.0.1]: https://github.com/markdown-it/markdown-it/compare/11.0.0...11.0.1
[11.0.0]: https://github.com/markdown-it/markdown-it/compare/10.0.0...11.0.0
[10.0.0]: https://github.com/markdown-it/markdown-it/compare/9.1.0...10.0.0
[9.1.0]: https://github.com/markdown-it/markdown-it/compare/9.0.1...9.1.0
[9.0.1]: https://github.com/markdown-it/markdown-it/compare/9.0.0...9.0.1
[9.0.0]: https://github.com/markdown-it/markdown-it/compare/8.4.2...9.0.0
[8.4.2]: https://github.com/markdown-it/markdown-it/compare/8.4.1...8.4.2
[8.4.1]: https://github.com/markdown-it/markdown-it/compare/8.4.0...8.4.1
[8.4.0]: https://github.com/markdown-it/markdown-it/compare/8.3.2...8.4.0
[8.3.2]: https://github.com/markdown-it/markdown-it/compare/8.3.1...8.3.2
[8.3.1]: https://github.com/markdown-it/markdown-it/compare/8.3.0...8.3.1
[8.3.0]: https://github.com/markdown-it/markdown-it/compare/8.2.2...8.3.0
[8.2.2]: https://github.com/markdown-it/markdown-it/compare/8.2.1...8.2.2
[8.2.1]: https://github.com/markdown-it/markdown-it/compare/8.2.0...8.2.1
[8.2.0]: https://github.com/markdown-it/markdown-it/compare/8.1.0...8.2.0
[8.1.0]: https://github.com/markdown-it/markdown-it/compare/8.0.1...8.1.0
[8.0.1]: https://github.com/markdown-it/markdown-it/compare/8.0.0...8.0.1
[8.0.0]: https://github.com/markdown-it/markdown-it/compare/7.0.1...8.0.0
[7.0.1]: https://github.com/markdown-it/markdown-it/compare/7.0.0...7.0.1
[7.0.0]: https://github.com/markdown-it/markdown-it/compare/6.1.1...7.0.0
[6.1.1]: https://github.com/markdown-it/markdown-it/compare/6.1.0...6.1.1
[6.1.0]: https://github.com/markdown-it/markdown-it/compare/6.0.5...6.1.0
[6.0.5]: https://github.com/markdown-it/markdown-it/compare/6.0.4...6.0.5
[6.0.4]: https://github.com/markdown-it/markdown-it/compare/6.0.3...6.0.4
[6.0.3]: https://github.com/markdown-it/markdown-it/compare/6.0.2...6.0.3
[6.0.2]: https://github.com/markdown-it/markdown-it/compare/6.0.1...6.0.2
[6.0.1]: https://github.com/markdown-it/markdown-it/compare/6.0.0...6.0.1
[6.0.0]: https://github.com/markdown-it/markdown-it/compare/5.1.0...6.0.0
[5.1.0]: https://github.com/markdown-it/markdown-it/compare/5.0.3...5.1.0
[5.0.3]: https://github.com/markdown-it/markdown-it/compare/5.0.2...5.0.3
[5.0.2]: https://github.com/markdown-it/markdown-it/compare/5.0.1...5.0.2
[5.0.1]: https://github.com/markdown-it/markdown-it/compare/5.0.0...5.0.1
[5.0.0]: https://github.com/markdown-it/markdown-it/compare/4.4.0...5.0.0
[4.4.0]: https://github.com/markdown-it/markdown-it/compare/4.3.1...4.4.0
[4.3.1]: https://github.com/markdown-it/markdown-it/compare/4.3.0...4.3.1
[4.3.0]: https://github.com/markdown-it/markdown-it/compare/4.2.2...4.3.0
[4.2.2]: https://github.com/markdown-it/markdown-it/compare/4.2.1...4.2.2
[4.2.1]: https://github.com/markdown-it/markdown-it/compare/4.2.0...4.2.1
[4.2.0]: https://github.com/markdown-it/markdown-it/compare/4.1.2...4.2.0
[4.1.2]: https://github.com/markdown-it/markdown-it/compare/4.1.1...4.1.2
[4.1.1]: https://github.com/markdown-it/markdown-it/compare/4.1.0...4.1.1
[4.1.0]: https://github.com/markdown-it/markdown-it/compare/4.0.3...4.1.0
[4.0.3]: https://github.com/markdown-it/markdown-it/compare/4.0.2...4.0.3
[4.0.2]: https://github.com/markdown-it/markdown-it/compare/4.0.1...4.0.2
[4.0.1]: https://github.com/markdown-it/markdown-it/compare/4.0.0...4.0.1
[4.0.0]: https://github.com/markdown-it/markdown-it/compare/3.1.0...4.0.0
[3.1.0]: https://github.com/markdown-it/markdown-it/compare/3.0.7...3.1.0
[3.0.7]: https://github.com/markdown-it/markdown-it/compare/3.0.6...3.0.7
[3.0.6]: https://github.com/markdown-it/markdown-it/compare/3.0.5...3.0.6
[3.0.5]: https://github.com/markdown-it/markdown-it/compare/3.0.4...3.0.5
[3.0.4]: https://github.com/markdown-it/markdown-it/compare/3.0.3...3.0.4
[3.0.3]: https://github.com/markdown-it/markdown-it/compare/3.0.2...3.0.3
[3.0.2]: https://github.com/markdown-it/markdown-it/compare/3.0.1...3.0.2
[3.0.1]: https://github.com/markdown-it/markdown-it/compare/3.0.0...3.0.1
[3.0.0]: https://github.com/markdown-it/markdown-it/compare/2.2.1...3.0.0
[2.2.1]: https://github.com/markdown-it/markdown-it/compare/2.2.0...2.2.1
[2.2.0]: https://github.com/markdown-it/markdown-it/compare/2.1.3...2.2.0
[2.1.3]: https://github.com/markdown-it/markdown-it/compare/2.1.2...2.1.3
[2.1.2]: https://github.com/markdown-it/markdown-it/compare/2.1.1...2.1.2
[2.1.1]: https://github.com/markdown-it/markdown-it/compare/2.1.0...2.1.1
[2.1.0]: https://github.com/markdown-it/markdown-it/compare/2.0.0...2.1.0
[2.0.0]: https://github.com/markdown-it/markdown-it/releases/tag/2.0.0

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Copyright (c) 2014 Vitaly Puzrin, Alex Kocharin.
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

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# markdown-it
[![Build Status](https://img.shields.io/travis/markdown-it/markdown-it/master.svg?style=flat)](https://travis-ci.org/markdown-it/markdown-it)
[![NPM version](https://img.shields.io/npm/v/markdown-it.svg?style=flat)](https://www.npmjs.org/package/markdown-it)
[![Coverage Status](https://coveralls.io/repos/markdown-it/markdown-it/badge.svg?branch=master&service=github)](https://coveralls.io/github/markdown-it/markdown-it?branch=master)
[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/markdown-it/markdown-it)
> Markdown parser done right. Fast and easy to extend.
__[Live demo](https://markdown-it.github.io)__
- Follows the __[CommonMark spec](http://spec.commonmark.org/)__ + adds syntax extensions & sugar (URL autolinking, typographer).
- Configurable syntax! You can add new rules and even replace existing ones.
- High speed.
- [Safe](https://github.com/markdown-it/markdown-it/tree/master/docs/security.md) by default.
- Community-written __[plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin)__ and [other packages](https://www.npmjs.org/browse/keyword/markdown-it) on npm.
__Table of content__
- [markdown-it](#markdown-it)
- [Install](#install)
- [Usage examples](#usage-examples)
- [Simple](#simple)
- [Init with presets and options](#init-with-presets-and-options)
- [Plugins load](#plugins-load)
- [Syntax highlighting](#syntax-highlighting)
- [Linkify](#linkify)
- [API](#api)
- [Syntax extensions](#syntax-extensions)
- [Manage rules](#manage-rules)
- [Benchmark](#benchmark)
- [Support markdown-it](#support-markdown-it)
- [Authors](#authors)
- [References / Thanks](#references--thanks)
## Install
**node.js** & **bower**:
```bash
npm install markdown-it --save
bower install markdown-it --save
```
**browser (CDN):**
- [jsDeliver CDN](http://www.jsdelivr.com/#!markdown-it "jsDelivr CDN")
- [cdnjs.com CDN](https://cdnjs.com/libraries/markdown-it "cdnjs.com")
## Usage examples
See also:
- __[API documentation](https://markdown-it.github.io/markdown-it/)__ - for more
info and examples.
- [Development info](https://github.com/markdown-it/markdown-it/tree/master/docs) -
for plugins writers.
### Simple
```js
// node.js, "classic" way:
var MarkdownIt = require('markdown-it'),
md = new MarkdownIt();
var result = md.render('# markdown-it rulezz!');
// node.js, the same, but with sugar:
var md = require('markdown-it')();
var result = md.render('# markdown-it rulezz!');
// browser without AMD, added to "window" on script load
// Note, there is no dash in "markdownit".
var md = window.markdownit();
var result = md.render('# markdown-it rulezz!');
```
Single line rendering, without paragraph wrap:
```js
var md = require('markdown-it')();
var result = md.renderInline('__markdown-it__ rulezz!');
```
### Init with presets and options
(*) presets define combinations of active rules and options. Can be
`"commonmark"`, `"zero"` or `"default"` (if skipped). See
[API docs](https://markdown-it.github.io/markdown-it/#MarkdownIt.new) for more details.
```js
// commonmark mode
var md = require('markdown-it')('commonmark');
// default mode
var md = require('markdown-it')();
// enable everything
var md = require('markdown-it')({
html: true,
linkify: true,
typographer: true
});
// full options list (defaults)
var md = require('markdown-it')({
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (<br />).
// This is only for full CommonMark compatibility.
breaks: false, // Convert '\n' in paragraphs into <br>
langPrefix: 'language-', // CSS language prefix for fenced blocks. Can be
// useful for external highlighters.
linkify: false, // Autoconvert URL-like text to links
// Enable some language-neutral replacement + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Could be either a String or an Array.
//
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
quotes: '“”‘’',
// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed and should be escaped externally.
// If result starts with <pre... internal wrapper is skipped.
highlight: function (/*str, lang*/) { return ''; }
});
```
### Plugins load
```js
var md = require('markdown-it')()
.use(plugin1)
.use(plugin2, opts, ...)
.use(plugin3);
```
### Syntax highlighting
Apply syntax highlighting to fenced code blocks with the `highlight` option:
```js
var hljs = require('highlight.js'); // https://highlightjs.org/
// Actual default values
var md = require('markdown-it')({
highlight: function (str, lang) {
if (lang && hljs.getLanguage(lang)) {
try {
return hljs.highlight(lang, str).value;
} catch (__) {}
}
return ''; // use external default escaping
}
});
```
Or with full wrapper override (if you need assign class to `<pre>`):
```js
var hljs = require('highlight.js'); // https://highlightjs.org/
// Actual default values
var md = require('markdown-it')({
highlight: function (str, lang) {
if (lang && hljs.getLanguage(lang)) {
try {
return '<pre class="hljs"><code>' +
hljs.highlight(lang, str, true).value +
'</code></pre>';
} catch (__) {}
}
return '<pre class="hljs"><code>' + md.utils.escapeHtml(str) + '</code></pre>';
}
});
```
### Linkify
`linkify: true` uses [linkify-it](https://github.com/markdown-it/linkify-it). To
configure linkify-it, access the linkify instance through `md.linkify`:
```js
md.linkify.tlds('.py', false); // disables .py as top level domain
```
## API
__[API documentation](https://markdown-it.github.io/markdown-it/)__
If you are going to write plugins - take a look at
[Development info](https://github.com/markdown-it/markdown-it/tree/master/docs).
## Syntax extensions
Embedded (enabled by default):
- [Tables](https://help.github.com/articles/organizing-information-with-tables/) (GFM)
- [Strikethrough](https://help.github.com/articles/basic-writing-and-formatting-syntax/#styling-text) (GFM)
Via plugins:
- [subscript](https://github.com/markdown-it/markdown-it-sub)
- [superscript](https://github.com/markdown-it/markdown-it-sup)
- [footnote](https://github.com/markdown-it/markdown-it-footnote)
- [definition list](https://github.com/markdown-it/markdown-it-deflist)
- [abbreviation](https://github.com/markdown-it/markdown-it-abbr)
- [emoji](https://github.com/markdown-it/markdown-it-emoji)
- [custom container](https://github.com/markdown-it/markdown-it-container)
- [insert](https://github.com/markdown-it/markdown-it-ins)
- [mark](https://github.com/markdown-it/markdown-it-mark)
- ... and [others](https://www.npmjs.org/browse/keyword/markdown-it-plugin)
### Manage rules
By default all rules are enabled, but can be restricted by options. On plugin
load all its rules are enabled automatically.
```js
// Activate/deactivate rules, with curring
var md = require('markdown-it')()
.disable([ 'link', 'image' ])
.enable([ 'link' ])
.enable('image');
// Enable everything
md = require('markdown-it')({
html: true,
linkify: true,
typographer: true,
});
```
You can find all rules in sources:
[parser_core.js](lib/parser_core.js), [parser_block](lib/parser_block.js),
[parser_inline](lib/parser_inline.js).
## Benchmark
Here is the result of readme parse at MB Pro Retina 2013 (2.4 GHz):
```bash
make benchmark-deps
benchmark/benchmark.js readme
Selected samples: (1 of 28)
> README
Sample: README.md (7774 bytes)
> commonmark-reference x 1,222 ops/sec ±0.96% (97 runs sampled)
> current x 743 ops/sec ±0.84% (97 runs sampled)
> current-commonmark x 1,568 ops/sec ±0.84% (98 runs sampled)
> marked x 1,587 ops/sec ±4.31% (93 runs sampled)
```
__Note.__ CommonMark version runs with [simplified link normalizers](https://github.com/markdown-it/markdown-it/blob/master/benchmark/implementations/current-commonmark/index.js)
for more "honest" compare. Difference is ~ 1.5x.
As you can see, `markdown-it` doesn't pay with speed for it's flexibility.
Slowdown of "full" version caused by additional features not available in
other implementations.
## markdown-it for enterprise
Available as part of the Tidelift Subscription.
The maintainers of `markdown-it` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-markdown-it?utm_source=npm-markdown-it&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
## Authors
- Alex Kocharin [github/rlidwka](https://github.com/rlidwka)
- Vitaly Puzrin [github/puzrin](https://github.com/puzrin)
_markdown-it_ is the result of the decision of the authors who contributed to
99% of the _Remarkable_ code to move to a project with the same authorship but
new leadership (Vitaly and Alex). It's not a fork.
## References / Thanks
Big thanks to [John MacFarlane](https://github.com/jgm) for his work on the
CommonMark spec and reference implementations. His work saved us a lot of time
during this project's development.
**Related Links:**
- https://github.com/jgm/CommonMark - reference CommonMark implementations in C & JS,
also contains latest spec & online demo.
- http://talk.commonmark.org - CommonMark forum, good place to collaborate
developers' efforts.
**Ports**
- [motion-markdown-it](https://github.com/digitalmoksha/motion-markdown-it) - Ruby/RubyMotion
- [markdown-it-py](https://github.com/ExecutableBookProject/markdown-it-py)- Python

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#!/usr/bin/env node
/*eslint no-console:0*/
'use strict';
var fs = require('fs');
var argparse = require('argparse');
////////////////////////////////////////////////////////////////////////////////
var cli = new argparse.ArgumentParser({
prog: 'markdown-it',
version: require('../package.json').version,
addHelp: true
});
cli.addArgument([ '--no-html' ], {
help: 'Disable embedded HTML',
action: 'storeTrue'
});
cli.addArgument([ '-l', '--linkify' ], {
help: 'Autolink text',
action: 'storeTrue'
});
cli.addArgument([ '-t', '--typographer' ], {
help: 'Enable smartquotes and other typographic replacements',
action: 'storeTrue'
});
cli.addArgument([ '--trace' ], {
help: 'Show stack trace on error',
action: 'storeTrue'
});
cli.addArgument([ 'file' ], {
help: 'File to read',
nargs: '?',
defaultValue: '-'
});
cli.addArgument([ '-o', '--output' ], {
help: 'File to write',
defaultValue: '-'
});
var options = cli.parseArgs();
function readFile(filename, encoding, callback) {
if (options.file === '-') {
// read from stdin
var chunks = [];
process.stdin.on('data', function (chunk) { chunks.push(chunk); });
process.stdin.on('end', function () {
return callback(null, Buffer.concat(chunks).toString(encoding));
});
} else {
fs.readFile(filename, encoding, callback);
}
}
////////////////////////////////////////////////////////////////////////////////
readFile(options.file, 'utf8', function (err, input) {
var output, md;
if (err) {
if (err.code === 'ENOENT') {
console.error('File not found: ' + options.file);
process.exit(2);
}
console.error(
options.trace && err.stack ||
err.message ||
String(err));
process.exit(1);
}
md = require('..')({
html: !options.no_html,
xhtmlOut: false,
typographer: options.typographer,
linkify: options.linkify
});
try {
output = md.render(input);
} catch (e) {
console.error(
options.trace && e.stack ||
e.message ||
String(e));
process.exit(1);
}
if (options.output === '-') {
// write to stdout
process.stdout.write(output);
} else {
fs.writeFileSync(options.output, output);
}
});

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'use strict';
module.exports = require('./lib/');

6
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// HTML5 entities map: { name -> utf16string }
//
'use strict';
/*eslint quotes:0*/
module.exports = require('entities/lib/maps/entities.json');

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// List of valid html blocks names, accorting to commonmark spec
// http://jgm.github.io/CommonMark/spec.html#html-blocks
'use strict';
module.exports = [
'address',
'article',
'aside',
'base',
'basefont',
'blockquote',
'body',
'caption',
'center',
'col',
'colgroup',
'dd',
'details',
'dialog',
'dir',
'div',
'dl',
'dt',
'fieldset',
'figcaption',
'figure',
'footer',
'form',
'frame',
'frameset',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'head',
'header',
'hr',
'html',
'iframe',
'legend',
'li',
'link',
'main',
'menu',
'menuitem',
'meta',
'nav',
'noframes',
'ol',
'optgroup',
'option',
'p',
'param',
'section',
'source',
'summary',
'table',
'tbody',
'td',
'tfoot',
'th',
'thead',
'title',
'tr',
'track',
'ul'
];

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// Regexps to match html elements
'use strict';
var attr_name = '[a-zA-Z_:][a-zA-Z0-9:._-]*';
var unquoted = '[^"\'=<>`\\x00-\\x20]+';
var single_quoted = "'[^']*'";
var double_quoted = '"[^"]*"';
var attr_value = '(?:' + unquoted + '|' + single_quoted + '|' + double_quoted + ')';
var attribute = '(?:\\s+' + attr_name + '(?:\\s*=\\s*' + attr_value + ')?)';
var open_tag = '<[A-Za-z][A-Za-z0-9\\-]*' + attribute + '*\\s*\\/?>';
var close_tag = '<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>';
var comment = '<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->';
var processing = '<[?].*?[?]>';
var declaration = '<![A-Z]+\\s+[^>]*>';
var cdata = '<!\\[CDATA\\[[\\s\\S]*?\\]\\]>';
var HTML_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + '|' + comment +
'|' + processing + '|' + declaration + '|' + cdata + ')');
var HTML_OPEN_CLOSE_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + ')');
module.exports.HTML_TAG_RE = HTML_TAG_RE;
module.exports.HTML_OPEN_CLOSE_TAG_RE = HTML_OPEN_CLOSE_TAG_RE;

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// Utilities
//
'use strict';
function _class(obj) { return Object.prototype.toString.call(obj); }
function isString(obj) { return _class(obj) === '[object String]'; }
var _hasOwnProperty = Object.prototype.hasOwnProperty;
function has(object, key) {
return _hasOwnProperty.call(object, key);
}
// Merge objects
//
function assign(obj /*from1, from2, from3, ...*/) {
var sources = Array.prototype.slice.call(arguments, 1);
sources.forEach(function (source) {
if (!source) { return; }
if (typeof source !== 'object') {
throw new TypeError(source + 'must be object');
}
Object.keys(source).forEach(function (key) {
obj[key] = source[key];
});
});
return obj;
}
// Remove element from array and put another array at those position.
// Useful for some operations with tokens
function arrayReplaceAt(src, pos, newElements) {
return [].concat(src.slice(0, pos), newElements, src.slice(pos + 1));
}
////////////////////////////////////////////////////////////////////////////////
function isValidEntityCode(c) {
/*eslint no-bitwise:0*/
// broken sequence
if (c >= 0xD800 && c <= 0xDFFF) { return false; }
// never used
if (c >= 0xFDD0 && c <= 0xFDEF) { return false; }
if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) { return false; }
// control codes
if (c >= 0x00 && c <= 0x08) { return false; }
if (c === 0x0B) { return false; }
if (c >= 0x0E && c <= 0x1F) { return false; }
if (c >= 0x7F && c <= 0x9F) { return false; }
// out of range
if (c > 0x10FFFF) { return false; }
return true;
}
function fromCodePoint(c) {
/*eslint no-bitwise:0*/
if (c > 0xffff) {
c -= 0x10000;
var surrogate1 = 0xd800 + (c >> 10),
surrogate2 = 0xdc00 + (c & 0x3ff);
return String.fromCharCode(surrogate1, surrogate2);
}
return String.fromCharCode(c);
}
var UNESCAPE_MD_RE = /\\([!"#$%&'()*+,\-.\/:;<=>?@[\\\]^_`{|}~])/g;
var ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi;
var UNESCAPE_ALL_RE = new RegExp(UNESCAPE_MD_RE.source + '|' + ENTITY_RE.source, 'gi');
var DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))/i;
var entities = require('./entities');
function replaceEntityPattern(match, name) {
var code = 0;
if (has(entities, name)) {
return entities[name];
}
if (name.charCodeAt(0) === 0x23/* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
code = name[1].toLowerCase() === 'x' ?
parseInt(name.slice(2), 16) : parseInt(name.slice(1), 10);
if (isValidEntityCode(code)) {
return fromCodePoint(code);
}
}
return match;
}
/*function replaceEntities(str) {
if (str.indexOf('&') < 0) { return str; }
return str.replace(ENTITY_RE, replaceEntityPattern);
}*/
function unescapeMd(str) {
if (str.indexOf('\\') < 0) { return str; }
return str.replace(UNESCAPE_MD_RE, '$1');
}
function unescapeAll(str) {
if (str.indexOf('\\') < 0 && str.indexOf('&') < 0) { return str; }
return str.replace(UNESCAPE_ALL_RE, function (match, escaped, entity) {
if (escaped) { return escaped; }
return replaceEntityPattern(match, entity);
});
}
////////////////////////////////////////////////////////////////////////////////
var HTML_ESCAPE_TEST_RE = /[&<>"]/;
var HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
var HTML_REPLACEMENTS = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;'
};
function replaceUnsafeChar(ch) {
return HTML_REPLACEMENTS[ch];
}
function escapeHtml(str) {
if (HTML_ESCAPE_TEST_RE.test(str)) {
return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
}
return str;
}
////////////////////////////////////////////////////////////////////////////////
var REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/g;
function escapeRE(str) {
return str.replace(REGEXP_ESCAPE_RE, '\\$&');
}
////////////////////////////////////////////////////////////////////////////////
function isSpace(code) {
switch (code) {
case 0x09:
case 0x20:
return true;
}
return false;
}
// Zs (unicode class) || [\t\f\v\r\n]
function isWhiteSpace(code) {
if (code >= 0x2000 && code <= 0x200A) { return true; }
switch (code) {
case 0x09: // \t
case 0x0A: // \n
case 0x0B: // \v
case 0x0C: // \f
case 0x0D: // \r
case 0x20:
case 0xA0:
case 0x1680:
case 0x202F:
case 0x205F:
case 0x3000:
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
/*eslint-disable max-len*/
var UNICODE_PUNCT_RE = require('uc.micro/categories/P/regex');
// Currently without astral characters support.
function isPunctChar(ch) {
return UNICODE_PUNCT_RE.test(ch);
}
// Markdown ASCII punctuation characters.
//
// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
//
// Don't confuse with unicode punctuation !!! It lacks some chars in ascii range.
//
function isMdAsciiPunct(ch) {
switch (ch) {
case 0x21/* ! */:
case 0x22/* " */:
case 0x23/* # */:
case 0x24/* $ */:
case 0x25/* % */:
case 0x26/* & */:
case 0x27/* ' */:
case 0x28/* ( */:
case 0x29/* ) */:
case 0x2A/* * */:
case 0x2B/* + */:
case 0x2C/* , */:
case 0x2D/* - */:
case 0x2E/* . */:
case 0x2F/* / */:
case 0x3A/* : */:
case 0x3B/* ; */:
case 0x3C/* < */:
case 0x3D/* = */:
case 0x3E/* > */:
case 0x3F/* ? */:
case 0x40/* @ */:
case 0x5B/* [ */:
case 0x5C/* \ */:
case 0x5D/* ] */:
case 0x5E/* ^ */:
case 0x5F/* _ */:
case 0x60/* ` */:
case 0x7B/* { */:
case 0x7C/* | */:
case 0x7D/* } */:
case 0x7E/* ~ */:
return true;
default:
return false;
}
}
// Hepler to unify [reference labels].
//
function normalizeReference(str) {
// Trim and collapse whitespace
//
str = str.trim().replace(/\s+/g, ' ');
// In node v10 'ẞ'.toLowerCase() === 'Ṿ', which is presumed to be a bug
// fixed in v12 (couldn't find any details).
//
// So treat this one as a special case
// (remove this when node v10 is no longer supported).
//
if ('ẞ'.toLowerCase() === 'Ṿ') {
str = str.replace(/ẞ/g, 'ß');
}
// .toLowerCase().toUpperCase() should get rid of all differences
// between letter variants.
//
// Simple .toLowerCase() doesn't normalize 125 code points correctly,
// and .toUpperCase doesn't normalize 6 of them (list of exceptions:
// İ, ϴ, ẞ, Ω, K, Å - those are already uppercased, but have differently
// uppercased versions).
//
// Here's an example showing how it happens. Lets take greek letter omega:
// uppercase U+0398 (Θ), U+03f4 (ϴ) and lowercase U+03b8 (θ), U+03d1 (ϑ)
//
// Unicode entries:
// 0398;GREEK CAPITAL LETTER THETA;Lu;0;L;;;;;N;;;;03B8;
// 03B8;GREEK SMALL LETTER THETA;Ll;0;L;;;;;N;;;0398;;0398
// 03D1;GREEK THETA SYMBOL;Ll;0;L;<compat> 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398
// 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L;<compat> 0398;;;;N;;;;03B8;
//
// Case-insensitive comparison should treat all of them as equivalent.
//
// But .toLowerCase() doesn't change ϑ (it's already lowercase),
// and .toUpperCase() doesn't change ϴ (already uppercase).
//
// Applying first lower then upper case normalizes any character:
// '\u0398\u03f4\u03b8\u03d1'.toLowerCase().toUpperCase() === '\u0398\u0398\u0398\u0398'
//
// Note: this is equivalent to unicode case folding; unicode normalization
// is a different step that is not required here.
//
// Final result should be uppercased, because it's later stored in an object
// (this avoid a conflict with Object.prototype members,
// most notably, `__proto__`)
//
return str.toLowerCase().toUpperCase();
}
////////////////////////////////////////////////////////////////////////////////
// Re-export libraries commonly used in both markdown-it and its plugins,
// so plugins won't have to depend on them explicitly, which reduces their
// bundled size (e.g. a browser build).
//
exports.lib = {};
exports.lib.mdurl = require('mdurl');
exports.lib.ucmicro = require('uc.micro');
exports.assign = assign;
exports.isString = isString;
exports.has = has;
exports.unescapeMd = unescapeMd;
exports.unescapeAll = unescapeAll;
exports.isValidEntityCode = isValidEntityCode;
exports.fromCodePoint = fromCodePoint;
// exports.replaceEntities = replaceEntities;
exports.escapeHtml = escapeHtml;
exports.arrayReplaceAt = arrayReplaceAt;
exports.isSpace = isSpace;
exports.isWhiteSpace = isWhiteSpace;
exports.isMdAsciiPunct = isMdAsciiPunct;
exports.isPunctChar = isPunctChar;
exports.escapeRE = escapeRE;
exports.normalizeReference = normalizeReference;

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// Just a shortcut for bulk export
'use strict';
exports.parseLinkLabel = require('./parse_link_label');
exports.parseLinkDestination = require('./parse_link_destination');
exports.parseLinkTitle = require('./parse_link_title');

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// Parse link destination
//
'use strict';
var unescapeAll = require('../common/utils').unescapeAll;
module.exports = function parseLinkDestination(str, pos, max) {
var code, level,
lines = 0,
start = pos,
result = {
ok: false,
pos: 0,
lines: 0,
str: ''
};
if (str.charCodeAt(pos) === 0x3C /* < */) {
pos++;
while (pos < max) {
code = str.charCodeAt(pos);
if (code === 0x0A /* \n */) { return result; }
if (code === 0x3E /* > */) {
result.pos = pos + 1;
result.str = unescapeAll(str.slice(start + 1, pos));
result.ok = true;
return result;
}
if (code === 0x5C /* \ */ && pos + 1 < max) {
pos += 2;
continue;
}
pos++;
}
// no closing '>'
return result;
}
// this should be ... } else { ... branch
level = 0;
while (pos < max) {
code = str.charCodeAt(pos);
if (code === 0x20) { break; }
// ascii control characters
if (code < 0x20 || code === 0x7F) { break; }
if (code === 0x5C /* \ */ && pos + 1 < max) {
pos += 2;
continue;
}
if (code === 0x28 /* ( */) {
level++;
}
if (code === 0x29 /* ) */) {
if (level === 0) { break; }
level--;
}
pos++;
}
if (start === pos) { return result; }
if (level !== 0) { return result; }
result.str = unescapeAll(str.slice(start, pos));
result.lines = lines;
result.pos = pos;
result.ok = true;
return result;
};

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// Parse link label
//
// this function assumes that first character ("[") already matches;
// returns the end of the label
//
'use strict';
module.exports = function parseLinkLabel(state, start, disableNested) {
var level, found, marker, prevPos,
labelEnd = -1,
max = state.posMax,
oldPos = state.pos;
state.pos = start + 1;
level = 1;
while (state.pos < max) {
marker = state.src.charCodeAt(state.pos);
if (marker === 0x5D /* ] */) {
level--;
if (level === 0) {
found = true;
break;
}
}
prevPos = state.pos;
state.md.inline.skipToken(state);
if (marker === 0x5B /* [ */) {
if (prevPos === state.pos - 1) {
// increase level if we find text `[`, which is not a part of any token
level++;
} else if (disableNested) {
state.pos = oldPos;
return -1;
}
}
}
if (found) {
labelEnd = state.pos;
}
// restore old state
state.pos = oldPos;
return labelEnd;
};

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// Parse link title
//
'use strict';
var unescapeAll = require('../common/utils').unescapeAll;
module.exports = function parseLinkTitle(str, pos, max) {
var code,
marker,
lines = 0,
start = pos,
result = {
ok: false,
pos: 0,
lines: 0,
str: ''
};
if (pos >= max) { return result; }
marker = str.charCodeAt(pos);
if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) { return result; }
pos++;
// if opening marker is "(", switch it to closing marker ")"
if (marker === 0x28) { marker = 0x29; }
while (pos < max) {
code = str.charCodeAt(pos);
if (code === marker) {
result.pos = pos + 1;
result.lines = lines;
result.str = unescapeAll(str.slice(start + 1, pos));
result.ok = true;
return result;
} else if (code === 0x0A) {
lines++;
} else if (code === 0x5C /* \ */ && pos + 1 < max) {
pos++;
if (str.charCodeAt(pos) === 0x0A) {
lines++;
}
}
pos++;
}
return result;
};

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// Main parser class
'use strict';
var utils = require('./common/utils');
var helpers = require('./helpers');
var Renderer = require('./renderer');
var ParserCore = require('./parser_core');
var ParserBlock = require('./parser_block');
var ParserInline = require('./parser_inline');
var LinkifyIt = require('linkify-it');
var mdurl = require('mdurl');
var punycode = require('punycode');
var config = {
'default': require('./presets/default'),
zero: require('./presets/zero'),
commonmark: require('./presets/commonmark')
};
////////////////////////////////////////////////////////////////////////////////
//
// This validator can prohibit more than really needed to prevent XSS. It's a
// tradeoff to keep code simple and to be secure by default.
//
// If you need different setup - override validator method as you wish. Or
// replace it with dummy function and use external sanitizer.
//
var BAD_PROTO_RE = /^(vbscript|javascript|file|data):/;
var GOOD_DATA_RE = /^data:image\/(gif|png|jpeg|webp);/;
function validateLink(url) {
// url should be normalized at this point, and existing entities are decoded
var str = url.trim().toLowerCase();
return BAD_PROTO_RE.test(str) ? (GOOD_DATA_RE.test(str) ? true : false) : true;
}
////////////////////////////////////////////////////////////////////////////////
var RECODE_HOSTNAME_FOR = [ 'http:', 'https:', 'mailto:' ];
function normalizeLink(url) {
var parsed = mdurl.parse(url, true);
if (parsed.hostname) {
// Encode hostnames in urls like:
// `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
//
// We don't encode unknown schemas, because it's likely that we encode
// something we shouldn't (e.g. `skype:name` treated as `skype:host`)
//
if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
try {
parsed.hostname = punycode.toASCII(parsed.hostname);
} catch (er) { /**/ }
}
}
return mdurl.encode(mdurl.format(parsed));
}
function normalizeLinkText(url) {
var parsed = mdurl.parse(url, true);
if (parsed.hostname) {
// Encode hostnames in urls like:
// `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
//
// We don't encode unknown schemas, because it's likely that we encode
// something we shouldn't (e.g. `skype:name` treated as `skype:host`)
//
if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
try {
parsed.hostname = punycode.toUnicode(parsed.hostname);
} catch (er) { /**/ }
}
}
return mdurl.decode(mdurl.format(parsed));
}
/**
* class MarkdownIt
*
* Main parser/renderer class.
*
* ##### Usage
*
* ```javascript
* // node.js, "classic" way:
* var MarkdownIt = require('markdown-it'),
* md = new MarkdownIt();
* var result = md.render('# markdown-it rulezz!');
*
* // node.js, the same, but with sugar:
* var md = require('markdown-it')();
* var result = md.render('# markdown-it rulezz!');
*
* // browser without AMD, added to "window" on script load
* // Note, there are no dash.
* var md = window.markdownit();
* var result = md.render('# markdown-it rulezz!');
* ```
*
* Single line rendering, without paragraph wrap:
*
* ```javascript
* var md = require('markdown-it')();
* var result = md.renderInline('__markdown-it__ rulezz!');
* ```
**/
/**
* new MarkdownIt([presetName, options])
* - presetName (String): optional, `commonmark` / `zero`
* - options (Object)
*
* Creates parser instanse with given config. Can be called without `new`.
*
* ##### presetName
*
* MarkdownIt provides named presets as a convenience to quickly
* enable/disable active syntax rules and options for common use cases.
*
* - ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.js) -
* configures parser to strict [CommonMark](http://commonmark.org/) mode.
* - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.js) -
* similar to GFM, used when no preset name given. Enables all available rules,
* but still without html, typographer & autolinker.
* - ["zero"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.js) -
* all rules disabled. Useful to quickly setup your config via `.enable()`.
* For example, when you need only `bold` and `italic` markup and nothing else.
*
* ##### options:
*
* - __html__ - `false`. Set `true` to enable HTML tags in source. Be careful!
* That's not safe! You may need external sanitizer to protect output from XSS.
* It's better to extend features via plugins, instead of enabling HTML.
* - __xhtmlOut__ - `false`. Set `true` to add '/' when closing single tags
* (`<br />`). This is needed only for full CommonMark compatibility. In real
* world you will need HTML output.
* - __breaks__ - `false`. Set `true` to convert `\n` in paragraphs into `<br>`.
* - __langPrefix__ - `language-`. CSS language class prefix for fenced blocks.
* Can be useful for external highlighters.
* - __linkify__ - `false`. Set `true` to autoconvert URL-like text to links.
* - __typographer__ - `false`. Set `true` to enable [some language-neutral
* replacement](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/replacements.js) +
* quotes beautification (smartquotes).
* - __quotes__ - `“”‘’`, String or Array. Double + single quotes replacement
* pairs, when typographer enabled and smartquotes on. For example, you can
* use `'«»„“'` for Russian, `'„“‚‘'` for German, and
* `['«\xA0', '\xA0»', '‹\xA0', '\xA0›']` for French (including nbsp).
* - __highlight__ - `null`. Highlighter function for fenced code blocks.
* Highlighter `function (str, lang)` should return escaped HTML. It can also
* return empty string if the source was not changed and should be escaped
* externaly. If result starts with <pre... internal wrapper is skipped.
*
* ##### Example
*
* ```javascript
* // commonmark mode
* var md = require('markdown-it')('commonmark');
*
* // default mode
* var md = require('markdown-it')();
*
* // enable everything
* var md = require('markdown-it')({
* html: true,
* linkify: true,
* typographer: true
* });
* ```
*
* ##### Syntax highlighting
*
* ```js
* var hljs = require('highlight.js') // https://highlightjs.org/
*
* var md = require('markdown-it')({
* highlight: function (str, lang) {
* if (lang && hljs.getLanguage(lang)) {
* try {
* return hljs.highlight(lang, str, true).value;
* } catch (__) {}
* }
*
* return ''; // use external default escaping
* }
* });
* ```
*
* Or with full wrapper override (if you need assign class to `<pre>`):
*
* ```javascript
* var hljs = require('highlight.js') // https://highlightjs.org/
*
* // Actual default values
* var md = require('markdown-it')({
* highlight: function (str, lang) {
* if (lang && hljs.getLanguage(lang)) {
* try {
* return '<pre class="hljs"><code>' +
* hljs.highlight(lang, str, true).value +
* '</code></pre>';
* } catch (__) {}
* }
*
* return '<pre class="hljs"><code>' + md.utils.escapeHtml(str) + '</code></pre>';
* }
* });
* ```
*
**/
function MarkdownIt(presetName, options) {
if (!(this instanceof MarkdownIt)) {
return new MarkdownIt(presetName, options);
}
if (!options) {
if (!utils.isString(presetName)) {
options = presetName || {};
presetName = 'default';
}
}
/**
* MarkdownIt#inline -> ParserInline
*
* Instance of [[ParserInline]]. You may need it to add new rules when
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
* [[MarkdownIt.enable]].
**/
this.inline = new ParserInline();
/**
* MarkdownIt#block -> ParserBlock
*
* Instance of [[ParserBlock]]. You may need it to add new rules when
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
* [[MarkdownIt.enable]].
**/
this.block = new ParserBlock();
/**
* MarkdownIt#core -> Core
*
* Instance of [[Core]] chain executor. You may need it to add new rules when
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
* [[MarkdownIt.enable]].
**/
this.core = new ParserCore();
/**
* MarkdownIt#renderer -> Renderer
*
* Instance of [[Renderer]]. Use it to modify output look. Or to add rendering
* rules for new token types, generated by plugins.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')();
*
* function myToken(tokens, idx, options, env, self) {
* //...
* return result;
* };
*
* md.renderer.rules['my_token'] = myToken
* ```
*
* See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js).
**/
this.renderer = new Renderer();
/**
* MarkdownIt#linkify -> LinkifyIt
*
* [linkify-it](https://github.com/markdown-it/linkify-it) instance.
* Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.js)
* rule.
**/
this.linkify = new LinkifyIt();
/**
* MarkdownIt#validateLink(url) -> Boolean
*
* Link validation function. CommonMark allows too much in links. By default
* we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas
* except some embedded image types.
*
* You can change this behaviour:
*
* ```javascript
* var md = require('markdown-it')();
* // enable everything
* md.validateLink = function () { return true; }
* ```
**/
this.validateLink = validateLink;
/**
* MarkdownIt#normalizeLink(url) -> String
*
* Function used to encode link url to a machine-readable format,
* which includes url-encoding, punycode, etc.
**/
this.normalizeLink = normalizeLink;
/**
* MarkdownIt#normalizeLinkText(url) -> String
*
* Function used to decode link url to a human-readable format`
**/
this.normalizeLinkText = normalizeLinkText;
// Expose utils & helpers for easy acces from plugins
/**
* MarkdownIt#utils -> utils
*
* Assorted utility functions, useful to write plugins. See details
* [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.js).
**/
this.utils = utils;
/**
* MarkdownIt#helpers -> helpers
*
* Link components parser functions, useful to write plugins. See details
* [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).
**/
this.helpers = utils.assign({}, helpers);
this.options = {};
this.configure(presetName);
if (options) { this.set(options); }
}
/** chainable
* MarkdownIt.set(options)
*
* Set parser options (in the same format as in constructor). Probably, you
* will never need it, but you can change options after constructor call.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')()
* .set({ html: true, breaks: true })
* .set({ typographer, true });
* ```
*
* __Note:__ To achieve the best possible performance, don't modify a
* `markdown-it` instance options on the fly. If you need multiple configurations
* it's best to create multiple instances and initialize each with separate
* config.
**/
MarkdownIt.prototype.set = function (options) {
utils.assign(this.options, options);
return this;
};
/** chainable, internal
* MarkdownIt.configure(presets)
*
* Batch load of all options and compenent settings. This is internal method,
* and you probably will not need it. But if you will - see available presets
* and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)
*
* We strongly recommend to use presets instead of direct config loads. That
* will give better compatibility with next versions.
**/
MarkdownIt.prototype.configure = function (presets) {
var self = this, presetName;
if (utils.isString(presets)) {
presetName = presets;
presets = config[presetName];
if (!presets) { throw new Error('Wrong `markdown-it` preset "' + presetName + '", check name'); }
}
if (!presets) { throw new Error('Wrong `markdown-it` preset, can\'t be empty'); }
if (presets.options) { self.set(presets.options); }
if (presets.components) {
Object.keys(presets.components).forEach(function (name) {
if (presets.components[name].rules) {
self[name].ruler.enableOnly(presets.components[name].rules);
}
if (presets.components[name].rules2) {
self[name].ruler2.enableOnly(presets.components[name].rules2);
}
});
}
return this;
};
/** chainable
* MarkdownIt.enable(list, ignoreInvalid)
* - list (String|Array): rule name or list of rule names to enable
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
*
* Enable list or rules. It will automatically find appropriate components,
* containing rules with given names. If rule not found, and `ignoreInvalid`
* not set - throws exception.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')()
* .enable(['sub', 'sup'])
* .disable('smartquotes');
* ```
**/
MarkdownIt.prototype.enable = function (list, ignoreInvalid) {
var result = [];
if (!Array.isArray(list)) { list = [ list ]; }
[ 'core', 'block', 'inline' ].forEach(function (chain) {
result = result.concat(this[chain].ruler.enable(list, true));
}, this);
result = result.concat(this.inline.ruler2.enable(list, true));
var missed = list.filter(function (name) { return result.indexOf(name) < 0; });
if (missed.length && !ignoreInvalid) {
throw new Error('MarkdownIt. Failed to enable unknown rule(s): ' + missed);
}
return this;
};
/** chainable
* MarkdownIt.disable(list, ignoreInvalid)
* - list (String|Array): rule name or list of rule names to disable.
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
*
* The same as [[MarkdownIt.enable]], but turn specified rules off.
**/
MarkdownIt.prototype.disable = function (list, ignoreInvalid) {
var result = [];
if (!Array.isArray(list)) { list = [ list ]; }
[ 'core', 'block', 'inline' ].forEach(function (chain) {
result = result.concat(this[chain].ruler.disable(list, true));
}, this);
result = result.concat(this.inline.ruler2.disable(list, true));
var missed = list.filter(function (name) { return result.indexOf(name) < 0; });
if (missed.length && !ignoreInvalid) {
throw new Error('MarkdownIt. Failed to disable unknown rule(s): ' + missed);
}
return this;
};
/** chainable
* MarkdownIt.use(plugin, params)
*
* Load specified plugin with given params into current parser instance.
* It's just a sugar to call `plugin(md, params)` with curring.
*
* ##### Example
*
* ```javascript
* var iterator = require('markdown-it-for-inline');
* var md = require('markdown-it')()
* .use(iterator, 'foo_replace', 'text', function (tokens, idx) {
* tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');
* });
* ```
**/
MarkdownIt.prototype.use = function (plugin /*, params, ... */) {
var args = [ this ].concat(Array.prototype.slice.call(arguments, 1));
plugin.apply(plugin, args);
return this;
};
/** internal
* MarkdownIt.parse(src, env) -> Array
* - src (String): source string
* - env (Object): environment sandbox
*
* Parse input string and return list of block tokens (special token type
* "inline" will contain list of inline tokens). You should not call this
* method directly, until you write custom renderer (for example, to produce
* AST).
*
* `env` is used to pass data between "distributed" rules and return additional
* metadata like reference info, needed for the renderer. It also can be used to
* inject data in specific cases. Usually, you will be ok to pass `{}`,
* and then pass updated object to renderer.
**/
MarkdownIt.prototype.parse = function (src, env) {
if (typeof src !== 'string') {
throw new Error('Input data should be a String');
}
var state = new this.core.State(src, this, env);
this.core.process(state);
return state.tokens;
};
/**
* MarkdownIt.render(src [, env]) -> String
* - src (String): source string
* - env (Object): environment sandbox
*
* Render markdown string into html. It does all magic for you :).
*
* `env` can be used to inject additional metadata (`{}` by default).
* But you will not need it with high probability. See also comment
* in [[MarkdownIt.parse]].
**/
MarkdownIt.prototype.render = function (src, env) {
env = env || {};
return this.renderer.render(this.parse(src, env), this.options, env);
};
/** internal
* MarkdownIt.parseInline(src, env) -> Array
* - src (String): source string
* - env (Object): environment sandbox
*
* The same as [[MarkdownIt.parse]] but skip all block rules. It returns the
* block tokens list with the single `inline` element, containing parsed inline
* tokens in `children` property. Also updates `env` object.
**/
MarkdownIt.prototype.parseInline = function (src, env) {
var state = new this.core.State(src, this, env);
state.inlineMode = true;
this.core.process(state);
return state.tokens;
};
/**
* MarkdownIt.renderInline(src [, env]) -> String
* - src (String): source string
* - env (Object): environment sandbox
*
* Similar to [[MarkdownIt.render]] but for single paragraph content. Result
* will NOT be wrapped into `<p>` tags.
**/
MarkdownIt.prototype.renderInline = function (src, env) {
env = env || {};
return this.renderer.render(this.parseInline(src, env), this.options, env);
};
module.exports = MarkdownIt;

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/** internal
* class ParserBlock
*
* Block-level tokenizer.
**/
'use strict';
var Ruler = require('./ruler');
var _rules = [
// First 2 params - rule name & source. Secondary array - list of rules,
// which can be terminated by this one.
[ 'table', require('./rules_block/table'), [ 'paragraph', 'reference' ] ],
[ 'code', require('./rules_block/code') ],
[ 'fence', require('./rules_block/fence'), [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
[ 'blockquote', require('./rules_block/blockquote'), [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
[ 'hr', require('./rules_block/hr'), [ 'paragraph', 'reference', 'blockquote', 'list' ] ],
[ 'list', require('./rules_block/list'), [ 'paragraph', 'reference', 'blockquote' ] ],
[ 'reference', require('./rules_block/reference') ],
[ 'heading', require('./rules_block/heading'), [ 'paragraph', 'reference', 'blockquote' ] ],
[ 'lheading', require('./rules_block/lheading') ],
[ 'html_block', require('./rules_block/html_block'), [ 'paragraph', 'reference', 'blockquote' ] ],
[ 'paragraph', require('./rules_block/paragraph') ]
];
/**
* new ParserBlock()
**/
function ParserBlock() {
/**
* ParserBlock#ruler -> Ruler
*
* [[Ruler]] instance. Keep configuration of block rules.
**/
this.ruler = new Ruler();
for (var i = 0; i < _rules.length; i++) {
this.ruler.push(_rules[i][0], _rules[i][1], { alt: (_rules[i][2] || []).slice() });
}
}
// Generate tokens for input range
//
ParserBlock.prototype.tokenize = function (state, startLine, endLine) {
var ok, i,
rules = this.ruler.getRules(''),
len = rules.length,
line = startLine,
hasEmptyLines = false,
maxNesting = state.md.options.maxNesting;
while (line < endLine) {
state.line = line = state.skipEmptyLines(line);
if (line >= endLine) { break; }
// Termination condition for nested calls.
// Nested calls currently used for blockquotes & lists
if (state.sCount[line] < state.blkIndent) { break; }
// If nesting level exceeded - skip tail to the end. That's not ordinary
// situation and we should not care about content.
if (state.level >= maxNesting) {
state.line = endLine;
break;
}
// Try all possible rules.
// On success, rule should:
//
// - update `state.line`
// - update `state.tokens`
// - return true
for (i = 0; i < len; i++) {
ok = rules[i](state, line, endLine, false);
if (ok) { break; }
}
// set state.tight if we had an empty line before current tag
// i.e. latest empty line should not count
state.tight = !hasEmptyLines;
// paragraph might "eat" one newline after it in nested lists
if (state.isEmpty(state.line - 1)) {
hasEmptyLines = true;
}
line = state.line;
if (line < endLine && state.isEmpty(line)) {
hasEmptyLines = true;
line++;
state.line = line;
}
}
};
/**
* ParserBlock.parse(str, md, env, outTokens)
*
* Process input string and push block tokens into `outTokens`
**/
ParserBlock.prototype.parse = function (src, md, env, outTokens) {
var state;
if (!src) { return; }
state = new this.State(src, md, env, outTokens);
this.tokenize(state, state.line, state.lineMax);
};
ParserBlock.prototype.State = require('./rules_block/state_block');
module.exports = ParserBlock;

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/** internal
* class Core
*
* Top-level rules executor. Glues block/inline parsers and does intermediate
* transformations.
**/
'use strict';
var Ruler = require('./ruler');
var _rules = [
[ 'normalize', require('./rules_core/normalize') ],
[ 'block', require('./rules_core/block') ],
[ 'inline', require('./rules_core/inline') ],
[ 'linkify', require('./rules_core/linkify') ],
[ 'replacements', require('./rules_core/replacements') ],
[ 'smartquotes', require('./rules_core/smartquotes') ]
];
/**
* new Core()
**/
function Core() {
/**
* Core#ruler -> Ruler
*
* [[Ruler]] instance. Keep configuration of core rules.
**/
this.ruler = new Ruler();
for (var i = 0; i < _rules.length; i++) {
this.ruler.push(_rules[i][0], _rules[i][1]);
}
}
/**
* Core.process(state)
*
* Executes core chain rules.
**/
Core.prototype.process = function (state) {
var i, l, rules;
rules = this.ruler.getRules('');
for (i = 0, l = rules.length; i < l; i++) {
rules[i](state);
}
};
Core.prototype.State = require('./rules_core/state_core');
module.exports = Core;

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/** internal
* class ParserInline
*
* Tokenizes paragraph content.
**/
'use strict';
var Ruler = require('./ruler');
////////////////////////////////////////////////////////////////////////////////
// Parser rules
var _rules = [
[ 'text', require('./rules_inline/text') ],
[ 'newline', require('./rules_inline/newline') ],
[ 'escape', require('./rules_inline/escape') ],
[ 'backticks', require('./rules_inline/backticks') ],
[ 'strikethrough', require('./rules_inline/strikethrough').tokenize ],
[ 'emphasis', require('./rules_inline/emphasis').tokenize ],
[ 'link', require('./rules_inline/link') ],
[ 'image', require('./rules_inline/image') ],
[ 'autolink', require('./rules_inline/autolink') ],
[ 'html_inline', require('./rules_inline/html_inline') ],
[ 'entity', require('./rules_inline/entity') ]
];
var _rules2 = [
[ 'balance_pairs', require('./rules_inline/balance_pairs') ],
[ 'strikethrough', require('./rules_inline/strikethrough').postProcess ],
[ 'emphasis', require('./rules_inline/emphasis').postProcess ],
[ 'text_collapse', require('./rules_inline/text_collapse') ]
];
/**
* new ParserInline()
**/
function ParserInline() {
var i;
/**
* ParserInline#ruler -> Ruler
*
* [[Ruler]] instance. Keep configuration of inline rules.
**/
this.ruler = new Ruler();
for (i = 0; i < _rules.length; i++) {
this.ruler.push(_rules[i][0], _rules[i][1]);
}
/**
* ParserInline#ruler2 -> Ruler
*
* [[Ruler]] instance. Second ruler used for post-processing
* (e.g. in emphasis-like rules).
**/
this.ruler2 = new Ruler();
for (i = 0; i < _rules2.length; i++) {
this.ruler2.push(_rules2[i][0], _rules2[i][1]);
}
}
// Skip single token by running all rules in validation mode;
// returns `true` if any rule reported success
//
ParserInline.prototype.skipToken = function (state) {
var ok, i, pos = state.pos,
rules = this.ruler.getRules(''),
len = rules.length,
maxNesting = state.md.options.maxNesting,
cache = state.cache;
if (typeof cache[pos] !== 'undefined') {
state.pos = cache[pos];
return;
}
if (state.level < maxNesting) {
for (i = 0; i < len; i++) {
// Increment state.level and decrement it later to limit recursion.
// It's harmless to do here, because no tokens are created. But ideally,
// we'd need a separate private state variable for this purpose.
//
state.level++;
ok = rules[i](state, true);
state.level--;
if (ok) { break; }
}
} else {
// Too much nesting, just skip until the end of the paragraph.
//
// NOTE: this will cause links to behave incorrectly in the following case,
// when an amount of `[` is exactly equal to `maxNesting + 1`:
//
// [[[[[[[[[[[[[[[[[[[[[foo]()
//
// TODO: remove this workaround when CM standard will allow nested links
// (we can replace it by preventing links from being parsed in
// validation mode)
//
state.pos = state.posMax;
}
if (!ok) { state.pos++; }
cache[pos] = state.pos;
};
// Generate tokens for input range
//
ParserInline.prototype.tokenize = function (state) {
var ok, i,
rules = this.ruler.getRules(''),
len = rules.length,
end = state.posMax,
maxNesting = state.md.options.maxNesting;
while (state.pos < end) {
// Try all possible rules.
// On success, rule should:
//
// - update `state.pos`
// - update `state.tokens`
// - return true
if (state.level < maxNesting) {
for (i = 0; i < len; i++) {
ok = rules[i](state, false);
if (ok) { break; }
}
}
if (ok) {
if (state.pos >= end) { break; }
continue;
}
state.pending += state.src[state.pos++];
}
if (state.pending) {
state.pushPending();
}
};
/**
* ParserInline.parse(str, md, env, outTokens)
*
* Process input string and push inline tokens into `outTokens`
**/
ParserInline.prototype.parse = function (str, md, env, outTokens) {
var i, rules, len;
var state = new this.State(str, md, env, outTokens);
this.tokenize(state);
rules = this.ruler2.getRules('');
len = rules.length;
for (i = 0; i < len; i++) {
rules[i](state);
}
};
ParserInline.prototype.State = require('./rules_inline/state_inline');
module.exports = ParserInline;

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// Commonmark default options
'use strict';
module.exports = {
options: {
html: true, // Enable HTML tags in source
xhtmlOut: true, // Use '/' to close single tags (<br />)
breaks: false, // Convert '\n' in paragraphs into <br>
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkify: false, // autoconvert URL-like texts to links
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Could be either a String or an Array.
//
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */
// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed and should be escaped externaly.
// If result starts with <pre... internal wrapper is skipped.
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 20 // Internal protection, recursion limit
},
components: {
core: {
rules: [
'normalize',
'block',
'inline'
]
},
block: {
rules: [
'blockquote',
'code',
'fence',
'heading',
'hr',
'html_block',
'lheading',
'list',
'reference',
'paragraph'
]
},
inline: {
rules: [
'autolink',
'backticks',
'emphasis',
'entity',
'escape',
'html_inline',
'image',
'link',
'newline',
'text'
],
rules2: [
'balance_pairs',
'emphasis',
'text_collapse'
]
}
}
};

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// markdown-it default options
'use strict';
module.exports = {
options: {
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (<br />)
breaks: false, // Convert '\n' in paragraphs into <br>
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkify: false, // autoconvert URL-like texts to links
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Could be either a String or an Array.
//
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */
// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed and should be escaped externaly.
// If result starts with <pre... internal wrapper is skipped.
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 100 // Internal protection, recursion limit
},
components: {
core: {},
block: {},
inline: {}
}
};

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// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
// modes. For example, to parse bold/italic only.
'use strict';
module.exports = {
options: {
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (<br />)
breaks: false, // Convert '\n' in paragraphs into <br>
langPrefix: 'language-', // CSS language prefix for fenced blocks
linkify: false, // autoconvert URL-like texts to links
// Enable some language-neutral replacements + quotes beautification
typographer: false,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Could be either a String or an Array.
//
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */
// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed and should be escaped externaly.
// If result starts with <pre... internal wrapper is skipped.
//
// function (/*str, lang*/) { return ''; }
//
highlight: null,
maxNesting: 20 // Internal protection, recursion limit
},
components: {
core: {
rules: [
'normalize',
'block',
'inline'
]
},
block: {
rules: [
'paragraph'
]
},
inline: {
rules: [
'text'
],
rules2: [
'balance_pairs',
'text_collapse'
]
}
}
};

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/**
* class Renderer
*
* Generates HTML from parsed token stream. Each instance has independent
* copy of rules. Those can be rewritten with ease. Also, you can add new
* rules if you create plugin and adds new token types.
**/
'use strict';
var assign = require('./common/utils').assign;
var unescapeAll = require('./common/utils').unescapeAll;
var escapeHtml = require('./common/utils').escapeHtml;
////////////////////////////////////////////////////////////////////////////////
var default_rules = {};
default_rules.code_inline = function (tokens, idx, options, env, slf) {
var token = tokens[idx];
return '<code' + slf.renderAttrs(token) + '>' +
escapeHtml(tokens[idx].content) +
'</code>';
};
default_rules.code_block = function (tokens, idx, options, env, slf) {
var token = tokens[idx];
return '<pre' + slf.renderAttrs(token) + '><code>' +
escapeHtml(tokens[idx].content) +
'</code></pre>\n';
};
default_rules.fence = function (tokens, idx, options, env, slf) {
var token = tokens[idx],
info = token.info ? unescapeAll(token.info).trim() : '',
langName = '',
highlighted, i, tmpAttrs, tmpToken;
if (info) {
langName = info.split(/\s+/g)[0];
}
if (options.highlight) {
highlighted = options.highlight(token.content, langName) || escapeHtml(token.content);
} else {
highlighted = escapeHtml(token.content);
}
if (highlighted.indexOf('<pre') === 0) {
return highlighted + '\n';
}
// If language exists, inject class gently, without modifying original token.
// May be, one day we will add .clone() for token and simplify this part, but
// now we prefer to keep things local.
if (info) {
i = token.attrIndex('class');
tmpAttrs = token.attrs ? token.attrs.slice() : [];
if (i < 0) {
tmpAttrs.push([ 'class', options.langPrefix + langName ]);
} else {
tmpAttrs[i][1] += ' ' + options.langPrefix + langName;
}
// Fake token just to render attributes
tmpToken = {
attrs: tmpAttrs
};
return '<pre><code' + slf.renderAttrs(tmpToken) + '>'
+ highlighted
+ '</code></pre>\n';
}
return '<pre><code' + slf.renderAttrs(token) + '>'
+ highlighted
+ '</code></pre>\n';
};
default_rules.image = function (tokens, idx, options, env, slf) {
var token = tokens[idx];
// "alt" attr MUST be set, even if empty. Because it's mandatory and
// should be placed on proper position for tests.
//
// Replace content with actual value
token.attrs[token.attrIndex('alt')][1] =
slf.renderInlineAsText(token.children, options, env);
return slf.renderToken(tokens, idx, options);
};
default_rules.hardbreak = function (tokens, idx, options /*, env */) {
return options.xhtmlOut ? '<br />\n' : '<br>\n';
};
default_rules.softbreak = function (tokens, idx, options /*, env */) {
return options.breaks ? (options.xhtmlOut ? '<br />\n' : '<br>\n') : '\n';
};
default_rules.text = function (tokens, idx /*, options, env */) {
return escapeHtml(tokens[idx].content);
};
default_rules.html_block = function (tokens, idx /*, options, env */) {
return tokens[idx].content;
};
default_rules.html_inline = function (tokens, idx /*, options, env */) {
return tokens[idx].content;
};
/**
* new Renderer()
*
* Creates new [[Renderer]] instance and fill [[Renderer#rules]] with defaults.
**/
function Renderer() {
/**
* Renderer#rules -> Object
*
* Contains render rules for tokens. Can be updated and extended.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')();
*
* md.renderer.rules.strong_open = function () { return '<b>'; };
* md.renderer.rules.strong_close = function () { return '</b>'; };
*
* var result = md.renderInline(...);
* ```
*
* Each rule is called as independent static function with fixed signature:
*
* ```javascript
* function my_token_render(tokens, idx, options, env, renderer) {
* // ...
* return renderedHTML;
* }
* ```
*
* See [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js)
* for more details and examples.
**/
this.rules = assign({}, default_rules);
}
/**
* Renderer.renderAttrs(token) -> String
*
* Render token attributes to string.
**/
Renderer.prototype.renderAttrs = function renderAttrs(token) {
var i, l, result;
if (!token.attrs) { return ''; }
result = '';
for (i = 0, l = token.attrs.length; i < l; i++) {
result += ' ' + escapeHtml(token.attrs[i][0]) + '="' + escapeHtml(token.attrs[i][1]) + '"';
}
return result;
};
/**
* Renderer.renderToken(tokens, idx, options) -> String
* - tokens (Array): list of tokens
* - idx (Numbed): token index to render
* - options (Object): params of parser instance
*
* Default token renderer. Can be overriden by custom function
* in [[Renderer#rules]].
**/
Renderer.prototype.renderToken = function renderToken(tokens, idx, options) {
var nextToken,
result = '',
needLf = false,
token = tokens[idx];
// Tight list paragraphs
if (token.hidden) {
return '';
}
// Insert a newline between hidden paragraph and subsequent opening
// block-level tag.
//
// For example, here we should insert a newline before blockquote:
// - a
// >
//
if (token.block && token.nesting !== -1 && idx && tokens[idx - 1].hidden) {
result += '\n';
}
// Add token name, e.g. `<img`
result += (token.nesting === -1 ? '</' : '<') + token.tag;
// Encode attributes, e.g. `<img src="foo"`
result += this.renderAttrs(token);
// Add a slash for self-closing tags, e.g. `<img src="foo" /`
if (token.nesting === 0 && options.xhtmlOut) {
result += ' /';
}
// Check if we need to add a newline after this tag
if (token.block) {
needLf = true;
if (token.nesting === 1) {
if (idx + 1 < tokens.length) {
nextToken = tokens[idx + 1];
if (nextToken.type === 'inline' || nextToken.hidden) {
// Block-level tag containing an inline tag.
//
needLf = false;
} else if (nextToken.nesting === -1 && nextToken.tag === token.tag) {
// Opening tag + closing tag of the same type. E.g. `<li></li>`.
//
needLf = false;
}
}
}
}
result += needLf ? '>\n' : '>';
return result;
};
/**
* Renderer.renderInline(tokens, options, env) -> String
* - tokens (Array): list on block tokens to renter
* - options (Object): params of parser instance
* - env (Object): additional data from parsed input (references, for example)
*
* The same as [[Renderer.render]], but for single token of `inline` type.
**/
Renderer.prototype.renderInline = function (tokens, options, env) {
var type,
result = '',
rules = this.rules;
for (var i = 0, len = tokens.length; i < len; i++) {
type = tokens[i].type;
if (typeof rules[type] !== 'undefined') {
result += rules[type](tokens, i, options, env, this);
} else {
result += this.renderToken(tokens, i, options);
}
}
return result;
};
/** internal
* Renderer.renderInlineAsText(tokens, options, env) -> String
* - tokens (Array): list on block tokens to renter
* - options (Object): params of parser instance
* - env (Object): additional data from parsed input (references, for example)
*
* Special kludge for image `alt` attributes to conform CommonMark spec.
* Don't try to use it! Spec requires to show `alt` content with stripped markup,
* instead of simple escaping.
**/
Renderer.prototype.renderInlineAsText = function (tokens, options, env) {
var result = '';
for (var i = 0, len = tokens.length; i < len; i++) {
if (tokens[i].type === 'text') {
result += tokens[i].content;
} else if (tokens[i].type === 'image') {
result += this.renderInlineAsText(tokens[i].children, options, env);
}
}
return result;
};
/**
* Renderer.render(tokens, options, env) -> String
* - tokens (Array): list on block tokens to renter
* - options (Object): params of parser instance
* - env (Object): additional data from parsed input (references, for example)
*
* Takes token stream and generates HTML. Probably, you will never need to call
* this method directly.
**/
Renderer.prototype.render = function (tokens, options, env) {
var i, len, type,
result = '',
rules = this.rules;
for (i = 0, len = tokens.length; i < len; i++) {
type = tokens[i].type;
if (type === 'inline') {
result += this.renderInline(tokens[i].children, options, env);
} else if (typeof rules[type] !== 'undefined') {
result += rules[tokens[i].type](tokens, i, options, env, this);
} else {
result += this.renderToken(tokens, i, options, env);
}
}
return result;
};
module.exports = Renderer;

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/**
* class Ruler
*
* Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and
* [[MarkdownIt#inline]] to manage sequences of functions (rules):
*
* - keep rules in defined order
* - assign the name to each rule
* - enable/disable rules
* - add/replace rules
* - allow assign rules to additional named chains (in the same)
* - cacheing lists of active rules
*
* You will not need use this class directly until write plugins. For simple
* rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and
* [[MarkdownIt.use]].
**/
'use strict';
/**
* new Ruler()
**/
function Ruler() {
// List of added rules. Each element is:
//
// {
// name: XXX,
// enabled: Boolean,
// fn: Function(),
// alt: [ name2, name3 ]
// }
//
this.__rules__ = [];
// Cached rule chains.
//
// First level - chain name, '' for default.
// Second level - diginal anchor for fast filtering by charcodes.
//
this.__cache__ = null;
}
////////////////////////////////////////////////////////////////////////////////
// Helper methods, should not be used directly
// Find rule index by name
//
Ruler.prototype.__find__ = function (name) {
for (var i = 0; i < this.__rules__.length; i++) {
if (this.__rules__[i].name === name) {
return i;
}
}
return -1;
};
// Build rules lookup cache
//
Ruler.prototype.__compile__ = function () {
var self = this;
var chains = [ '' ];
// collect unique names
self.__rules__.forEach(function (rule) {
if (!rule.enabled) { return; }
rule.alt.forEach(function (altName) {
if (chains.indexOf(altName) < 0) {
chains.push(altName);
}
});
});
self.__cache__ = {};
chains.forEach(function (chain) {
self.__cache__[chain] = [];
self.__rules__.forEach(function (rule) {
if (!rule.enabled) { return; }
if (chain && rule.alt.indexOf(chain) < 0) { return; }
self.__cache__[chain].push(rule.fn);
});
});
};
/**
* Ruler.at(name, fn [, options])
* - name (String): rule name to replace.
* - fn (Function): new rule function.
* - options (Object): new rule options (not mandatory).
*
* Replace rule by name with new function & options. Throws error if name not
* found.
*
* ##### Options:
*
* - __alt__ - array with names of "alternate" chains.
*
* ##### Example
*
* Replace existing typographer replacement rule with new one:
*
* ```javascript
* var md = require('markdown-it')();
*
* md.core.ruler.at('replacements', function replace(state) {
* //...
* });
* ```
**/
Ruler.prototype.at = function (name, fn, options) {
var index = this.__find__(name);
var opt = options || {};
if (index === -1) { throw new Error('Parser rule not found: ' + name); }
this.__rules__[index].fn = fn;
this.__rules__[index].alt = opt.alt || [];
this.__cache__ = null;
};
/**
* Ruler.before(beforeName, ruleName, fn [, options])
* - beforeName (String): new rule will be added before this one.
* - ruleName (String): name of added rule.
* - fn (Function): rule function.
* - options (Object): rule options (not mandatory).
*
* Add new rule to chain before one with given name. See also
* [[Ruler.after]], [[Ruler.push]].
*
* ##### Options:
*
* - __alt__ - array with names of "alternate" chains.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')();
*
* md.block.ruler.before('paragraph', 'my_rule', function replace(state) {
* //...
* });
* ```
**/
Ruler.prototype.before = function (beforeName, ruleName, fn, options) {
var index = this.__find__(beforeName);
var opt = options || {};
if (index === -1) { throw new Error('Parser rule not found: ' + beforeName); }
this.__rules__.splice(index, 0, {
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Ruler.after(afterName, ruleName, fn [, options])
* - afterName (String): new rule will be added after this one.
* - ruleName (String): name of added rule.
* - fn (Function): rule function.
* - options (Object): rule options (not mandatory).
*
* Add new rule to chain after one with given name. See also
* [[Ruler.before]], [[Ruler.push]].
*
* ##### Options:
*
* - __alt__ - array with names of "alternate" chains.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')();
*
* md.inline.ruler.after('text', 'my_rule', function replace(state) {
* //...
* });
* ```
**/
Ruler.prototype.after = function (afterName, ruleName, fn, options) {
var index = this.__find__(afterName);
var opt = options || {};
if (index === -1) { throw new Error('Parser rule not found: ' + afterName); }
this.__rules__.splice(index + 1, 0, {
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Ruler.push(ruleName, fn [, options])
* - ruleName (String): name of added rule.
* - fn (Function): rule function.
* - options (Object): rule options (not mandatory).
*
* Push new rule to the end of chain. See also
* [[Ruler.before]], [[Ruler.after]].
*
* ##### Options:
*
* - __alt__ - array with names of "alternate" chains.
*
* ##### Example
*
* ```javascript
* var md = require('markdown-it')();
*
* md.core.ruler.push('my_rule', function replace(state) {
* //...
* });
* ```
**/
Ruler.prototype.push = function (ruleName, fn, options) {
var opt = options || {};
this.__rules__.push({
name: ruleName,
enabled: true,
fn: fn,
alt: opt.alt || []
});
this.__cache__ = null;
};
/**
* Ruler.enable(list [, ignoreInvalid]) -> Array
* - list (String|Array): list of rule names to enable.
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
*
* Enable rules with given names. If any rule name not found - throw Error.
* Errors can be disabled by second param.
*
* Returns list of found rule names (if no exception happened).
*
* See also [[Ruler.disable]], [[Ruler.enableOnly]].
**/
Ruler.prototype.enable = function (list, ignoreInvalid) {
if (!Array.isArray(list)) { list = [ list ]; }
var result = [];
// Search by name and enable
list.forEach(function (name) {
var idx = this.__find__(name);
if (idx < 0) {
if (ignoreInvalid) { return; }
throw new Error('Rules manager: invalid rule name ' + name);
}
this.__rules__[idx].enabled = true;
result.push(name);
}, this);
this.__cache__ = null;
return result;
};
/**
* Ruler.enableOnly(list [, ignoreInvalid])
* - list (String|Array): list of rule names to enable (whitelist).
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
*
* Enable rules with given names, and disable everything else. If any rule name
* not found - throw Error. Errors can be disabled by second param.
*
* See also [[Ruler.disable]], [[Ruler.enable]].
**/
Ruler.prototype.enableOnly = function (list, ignoreInvalid) {
if (!Array.isArray(list)) { list = [ list ]; }
this.__rules__.forEach(function (rule) { rule.enabled = false; });
this.enable(list, ignoreInvalid);
};
/**
* Ruler.disable(list [, ignoreInvalid]) -> Array
* - list (String|Array): list of rule names to disable.
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
*
* Disable rules with given names. If any rule name not found - throw Error.
* Errors can be disabled by second param.
*
* Returns list of found rule names (if no exception happened).
*
* See also [[Ruler.enable]], [[Ruler.enableOnly]].
**/
Ruler.prototype.disable = function (list, ignoreInvalid) {
if (!Array.isArray(list)) { list = [ list ]; }
var result = [];
// Search by name and disable
list.forEach(function (name) {
var idx = this.__find__(name);
if (idx < 0) {
if (ignoreInvalid) { return; }
throw new Error('Rules manager: invalid rule name ' + name);
}
this.__rules__[idx].enabled = false;
result.push(name);
}, this);
this.__cache__ = null;
return result;
};
/**
* Ruler.getRules(chainName) -> Array
*
* Return array of active functions (rules) for given chain name. It analyzes
* rules configuration, compiles caches if not exists and returns result.
*
* Default chain name is `''` (empty string). It can't be skipped. That's
* done intentionally, to keep signature monomorphic for high speed.
**/
Ruler.prototype.getRules = function (chainName) {
if (this.__cache__ === null) {
this.__compile__();
}
// Chain can be empty, if rules disabled. But we still have to return Array.
return this.__cache__[chainName] || [];
};
module.exports = Ruler;

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// Block quotes
'use strict';
var isSpace = require('../common/utils').isSpace;
module.exports = function blockquote(state, startLine, endLine, silent) {
var adjustTab,
ch,
i,
initial,
l,
lastLineEmpty,
lines,
nextLine,
offset,
oldBMarks,
oldBSCount,
oldIndent,
oldParentType,
oldSCount,
oldTShift,
spaceAfterMarker,
terminate,
terminatorRules,
token,
isOutdented,
oldLineMax = state.lineMax,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
// check the block quote marker
if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; }
// we know that it's going to be a valid blockquote,
// so no point trying to find the end of it in silent mode
if (silent) { return true; }
// set offset past spaces and ">"
initial = offset = state.sCount[startLine] + 1;
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20 /* space */) {
// ' > test '
// ^ -- position start of line here:
pos++;
initial++;
offset++;
adjustTab = false;
spaceAfterMarker = true;
} else if (state.src.charCodeAt(pos) === 0x09 /* tab */) {
spaceAfterMarker = true;
if ((state.bsCount[startLine] + offset) % 4 === 3) {
// ' >\t test '
// ^ -- position start of line here (tab has width===1)
pos++;
initial++;
offset++;
adjustTab = false;
} else {
// ' >\t test '
// ^ -- position start of line here + shift bsCount slightly
// to make extra space appear
adjustTab = true;
}
} else {
spaceAfterMarker = false;
}
oldBMarks = [ state.bMarks[startLine] ];
state.bMarks[startLine] = pos;
while (pos < max) {
ch = state.src.charCodeAt(pos);
if (isSpace(ch)) {
if (ch === 0x09) {
offset += 4 - (offset + state.bsCount[startLine] + (adjustTab ? 1 : 0)) % 4;
} else {
offset++;
}
} else {
break;
}
pos++;
}
oldBSCount = [ state.bsCount[startLine] ];
state.bsCount[startLine] = state.sCount[startLine] + 1 + (spaceAfterMarker ? 1 : 0);
lastLineEmpty = pos >= max;
oldSCount = [ state.sCount[startLine] ];
state.sCount[startLine] = offset - initial;
oldTShift = [ state.tShift[startLine] ];
state.tShift[startLine] = pos - state.bMarks[startLine];
terminatorRules = state.md.block.ruler.getRules('blockquote');
oldParentType = state.parentType;
state.parentType = 'blockquote';
// Search the end of the block
//
// Block ends with either:
// 1. an empty line outside:
// ```
// > test
//
// ```
// 2. an empty line inside:
// ```
// >
// test
// ```
// 3. another tag:
// ```
// > test
// - - -
// ```
for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
// check if it's outdented, i.e. it's inside list item and indented
// less than said list item:
//
// ```
// 1. anything
// > current blockquote
// 2. checking this line
// ```
isOutdented = state.sCount[nextLine] < state.blkIndent;
pos = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos >= max) {
// Case 1: line is not inside the blockquote, and this line is empty.
break;
}
if (state.src.charCodeAt(pos++) === 0x3E/* > */ && !isOutdented) {
// This line is inside the blockquote.
// set offset past spaces and ">"
initial = offset = state.sCount[nextLine] + 1;
// skip one optional space after '>'
if (state.src.charCodeAt(pos) === 0x20 /* space */) {
// ' > test '
// ^ -- position start of line here:
pos++;
initial++;
offset++;
adjustTab = false;
spaceAfterMarker = true;
} else if (state.src.charCodeAt(pos) === 0x09 /* tab */) {
spaceAfterMarker = true;
if ((state.bsCount[nextLine] + offset) % 4 === 3) {
// ' >\t test '
// ^ -- position start of line here (tab has width===1)
pos++;
initial++;
offset++;
adjustTab = false;
} else {
// ' >\t test '
// ^ -- position start of line here + shift bsCount slightly
// to make extra space appear
adjustTab = true;
}
} else {
spaceAfterMarker = false;
}
oldBMarks.push(state.bMarks[nextLine]);
state.bMarks[nextLine] = pos;
while (pos < max) {
ch = state.src.charCodeAt(pos);
if (isSpace(ch)) {
if (ch === 0x09) {
offset += 4 - (offset + state.bsCount[nextLine] + (adjustTab ? 1 : 0)) % 4;
} else {
offset++;
}
} else {
break;
}
pos++;
}
lastLineEmpty = pos >= max;
oldBSCount.push(state.bsCount[nextLine]);
state.bsCount[nextLine] = state.sCount[nextLine] + 1 + (spaceAfterMarker ? 1 : 0);
oldSCount.push(state.sCount[nextLine]);
state.sCount[nextLine] = offset - initial;
oldTShift.push(state.tShift[nextLine]);
state.tShift[nextLine] = pos - state.bMarks[nextLine];
continue;
}
// Case 2: line is not inside the blockquote, and the last line was empty.
if (lastLineEmpty) { break; }
// Case 3: another tag found.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) {
// Quirk to enforce "hard termination mode" for paragraphs;
// normally if you call `tokenize(state, startLine, nextLine)`,
// paragraphs will look below nextLine for paragraph continuation,
// but if blockquote is terminated by another tag, they shouldn't
state.lineMax = nextLine;
if (state.blkIndent !== 0) {
// state.blkIndent was non-zero, we now set it to zero,
// so we need to re-calculate all offsets to appear as
// if indent wasn't changed
oldBMarks.push(state.bMarks[nextLine]);
oldBSCount.push(state.bsCount[nextLine]);
oldTShift.push(state.tShift[nextLine]);
oldSCount.push(state.sCount[nextLine]);
state.sCount[nextLine] -= state.blkIndent;
}
break;
}
oldBMarks.push(state.bMarks[nextLine]);
oldBSCount.push(state.bsCount[nextLine]);
oldTShift.push(state.tShift[nextLine]);
oldSCount.push(state.sCount[nextLine]);
// A negative indentation means that this is a paragraph continuation
//
state.sCount[nextLine] = -1;
}
oldIndent = state.blkIndent;
state.blkIndent = 0;
token = state.push('blockquote_open', 'blockquote', 1);
token.markup = '>';
token.map = lines = [ startLine, 0 ];
state.md.block.tokenize(state, startLine, nextLine);
token = state.push('blockquote_close', 'blockquote', -1);
token.markup = '>';
state.lineMax = oldLineMax;
state.parentType = oldParentType;
lines[1] = state.line;
// Restore original tShift; this might not be necessary since the parser
// has already been here, but just to make sure we can do that.
for (i = 0; i < oldTShift.length; i++) {
state.bMarks[i + startLine] = oldBMarks[i];
state.tShift[i + startLine] = oldTShift[i];
state.sCount[i + startLine] = oldSCount[i];
state.bsCount[i + startLine] = oldBSCount[i];
}
state.blkIndent = oldIndent;
return true;
};

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// Code block (4 spaces padded)
'use strict';
module.exports = function code(state, startLine, endLine/*, silent*/) {
var nextLine, last, token;
if (state.sCount[startLine] - state.blkIndent < 4) { return false; }
last = nextLine = startLine + 1;
while (nextLine < endLine) {
if (state.isEmpty(nextLine)) {
nextLine++;
continue;
}
if (state.sCount[nextLine] - state.blkIndent >= 4) {
nextLine++;
last = nextLine;
continue;
}
break;
}
state.line = last;
token = state.push('code_block', 'code', 0);
token.content = state.getLines(startLine, last, 4 + state.blkIndent, true);
token.map = [ startLine, state.line ];
return true;
};

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// fences (``` lang, ~~~ lang)
'use strict';
module.exports = function fence(state, startLine, endLine, silent) {
var marker, len, params, nextLine, mem, token, markup,
haveEndMarker = false,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
if (pos + 3 > max) { return false; }
marker = state.src.charCodeAt(pos);
if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) {
return false;
}
// scan marker length
mem = pos;
pos = state.skipChars(pos, marker);
len = pos - mem;
if (len < 3) { return false; }
markup = state.src.slice(mem, pos);
params = state.src.slice(pos, max);
if (marker === 0x60 /* ` */) {
if (params.indexOf(String.fromCharCode(marker)) >= 0) {
return false;
}
}
// Since start is found, we can report success here in validation mode
if (silent) { return true; }
// search end of block
nextLine = startLine;
for (;;) {
nextLine++;
if (nextLine >= endLine) {
// unclosed block should be autoclosed by end of document.
// also block seems to be autoclosed by end of parent
break;
}
pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos < max && state.sCount[nextLine] < state.blkIndent) {
// non-empty line with negative indent should stop the list:
// - ```
// test
break;
}
if (state.src.charCodeAt(pos) !== marker) { continue; }
if (state.sCount[nextLine] - state.blkIndent >= 4) {
// closing fence should be indented less than 4 spaces
continue;
}
pos = state.skipChars(pos, marker);
// closing code fence must be at least as long as the opening one
if (pos - mem < len) { continue; }
// make sure tail has spaces only
pos = state.skipSpaces(pos);
if (pos < max) { continue; }
haveEndMarker = true;
// found!
break;
}
// If a fence has heading spaces, they should be removed from its inner block
len = state.sCount[startLine];
state.line = nextLine + (haveEndMarker ? 1 : 0);
token = state.push('fence', 'code', 0);
token.info = params;
token.content = state.getLines(startLine + 1, nextLine, len, true);
token.markup = markup;
token.map = [ startLine, state.line ];
return true;
};

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// heading (#, ##, ...)
'use strict';
var isSpace = require('../common/utils').isSpace;
module.exports = function heading(state, startLine, endLine, silent) {
var ch, level, tmp, token,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
ch = state.src.charCodeAt(pos);
if (ch !== 0x23/* # */ || pos >= max) { return false; }
// count heading level
level = 1;
ch = state.src.charCodeAt(++pos);
while (ch === 0x23/* # */ && pos < max && level <= 6) {
level++;
ch = state.src.charCodeAt(++pos);
}
if (level > 6 || (pos < max && !isSpace(ch))) { return false; }
if (silent) { return true; }
// Let's cut tails like ' ### ' from the end of string
max = state.skipSpacesBack(max, pos);
tmp = state.skipCharsBack(max, 0x23, pos); // #
if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
max = tmp;
}
state.line = startLine + 1;
token = state.push('heading_open', 'h' + String(level), 1);
token.markup = '########'.slice(0, level);
token.map = [ startLine, state.line ];
token = state.push('inline', '', 0);
token.content = state.src.slice(pos, max).trim();
token.map = [ startLine, state.line ];
token.children = [];
token = state.push('heading_close', 'h' + String(level), -1);
token.markup = '########'.slice(0, level);
return true;
};

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// Horizontal rule
'use strict';
var isSpace = require('../common/utils').isSpace;
module.exports = function hr(state, startLine, endLine, silent) {
var marker, cnt, ch, token,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
marker = state.src.charCodeAt(pos++);
// Check hr marker
if (marker !== 0x2A/* * */ &&
marker !== 0x2D/* - */ &&
marker !== 0x5F/* _ */) {
return false;
}
// markers can be mixed with spaces, but there should be at least 3 of them
cnt = 1;
while (pos < max) {
ch = state.src.charCodeAt(pos++);
if (ch !== marker && !isSpace(ch)) { return false; }
if (ch === marker) { cnt++; }
}
if (cnt < 3) { return false; }
if (silent) { return true; }
state.line = startLine + 1;
token = state.push('hr', 'hr', 0);
token.map = [ startLine, state.line ];
token.markup = Array(cnt + 1).join(String.fromCharCode(marker));
return true;
};

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// HTML block
'use strict';
var block_names = require('../common/html_blocks');
var HTML_OPEN_CLOSE_TAG_RE = require('../common/html_re').HTML_OPEN_CLOSE_TAG_RE;
// An array of opening and corresponding closing sequences for html tags,
// last argument defines whether it can terminate a paragraph or not
//
var HTML_SEQUENCES = [
[ /^<(script|pre|style)(?=(\s|>|$))/i, /<\/(script|pre|style)>/i, true ],
[ /^<!--/, /-->/, true ],
[ /^<\?/, /\?>/, true ],
[ /^<![A-Z]/, />/, true ],
[ /^<!\[CDATA\[/, /\]\]>/, true ],
[ new RegExp('^</?(' + block_names.join('|') + ')(?=(\\s|/?>|$))', 'i'), /^$/, true ],
[ new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + '\\s*$'), /^$/, false ]
];
module.exports = function html_block(state, startLine, endLine, silent) {
var i, nextLine, token, lineText,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine];
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
if (!state.md.options.html) { return false; }
if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
lineText = state.src.slice(pos, max);
for (i = 0; i < HTML_SEQUENCES.length; i++) {
if (HTML_SEQUENCES[i][0].test(lineText)) { break; }
}
if (i === HTML_SEQUENCES.length) { return false; }
if (silent) {
// true if this sequence can be a terminator, false otherwise
return HTML_SEQUENCES[i][2];
}
nextLine = startLine + 1;
// If we are here - we detected HTML block.
// Let's roll down till block end.
if (!HTML_SEQUENCES[i][1].test(lineText)) {
for (; nextLine < endLine; nextLine++) {
if (state.sCount[nextLine] < state.blkIndent) { break; }
pos = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
lineText = state.src.slice(pos, max);
if (HTML_SEQUENCES[i][1].test(lineText)) {
if (lineText.length !== 0) { nextLine++; }
break;
}
}
}
state.line = nextLine;
token = state.push('html_block', '', 0);
token.map = [ startLine, nextLine ];
token.content = state.getLines(startLine, nextLine, state.blkIndent, true);
return true;
};

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// lheading (---, ===)
'use strict';
module.exports = function lheading(state, startLine, endLine/*, silent*/) {
var content, terminate, i, l, token, pos, max, level, marker,
nextLine = startLine + 1, oldParentType,
terminatorRules = state.md.block.ruler.getRules('paragraph');
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
oldParentType = state.parentType;
state.parentType = 'paragraph'; // use paragraph to match terminatorRules
// jump line-by-line until empty one or EOF
for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
// this would be a code block normally, but after paragraph
// it's considered a lazy continuation regardless of what's there
if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }
//
// Check for underline in setext header
//
if (state.sCount[nextLine] >= state.blkIndent) {
pos = state.bMarks[nextLine] + state.tShift[nextLine];
max = state.eMarks[nextLine];
if (pos < max) {
marker = state.src.charCodeAt(pos);
if (marker === 0x2D/* - */ || marker === 0x3D/* = */) {
pos = state.skipChars(pos, marker);
pos = state.skipSpaces(pos);
if (pos >= max) {
level = (marker === 0x3D/* = */ ? 1 : 2);
break;
}
}
}
}
// quirk for blockquotes, this line should already be checked by that rule
if (state.sCount[nextLine] < 0) { continue; }
// Some tags can terminate paragraph without empty line.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
}
if (!level) {
// Didn't find valid underline
return false;
}
content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
state.line = nextLine + 1;
token = state.push('heading_open', 'h' + String(level), 1);
token.markup = String.fromCharCode(marker);
token.map = [ startLine, state.line ];
token = state.push('inline', '', 0);
token.content = content;
token.map = [ startLine, state.line - 1 ];
token.children = [];
token = state.push('heading_close', 'h' + String(level), -1);
token.markup = String.fromCharCode(marker);
state.parentType = oldParentType;
return true;
};

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// Lists
'use strict';
var isSpace = require('../common/utils').isSpace;
// Search `[-+*][\n ]`, returns next pos after marker on success
// or -1 on fail.
function skipBulletListMarker(state, startLine) {
var marker, pos, max, ch;
pos = state.bMarks[startLine] + state.tShift[startLine];
max = state.eMarks[startLine];
marker = state.src.charCodeAt(pos++);
// Check bullet
if (marker !== 0x2A/* * */ &&
marker !== 0x2D/* - */ &&
marker !== 0x2B/* + */) {
return -1;
}
if (pos < max) {
ch = state.src.charCodeAt(pos);
if (!isSpace(ch)) {
// " -test " - is not a list item
return -1;
}
}
return pos;
}
// Search `\d+[.)][\n ]`, returns next pos after marker on success
// or -1 on fail.
function skipOrderedListMarker(state, startLine) {
var ch,
start = state.bMarks[startLine] + state.tShift[startLine],
pos = start,
max = state.eMarks[startLine];
// List marker should have at least 2 chars (digit + dot)
if (pos + 1 >= max) { return -1; }
ch = state.src.charCodeAt(pos++);
if (ch < 0x30/* 0 */ || ch > 0x39/* 9 */) { return -1; }
for (;;) {
// EOL -> fail
if (pos >= max) { return -1; }
ch = state.src.charCodeAt(pos++);
if (ch >= 0x30/* 0 */ && ch <= 0x39/* 9 */) {
// List marker should have no more than 9 digits
// (prevents integer overflow in browsers)
if (pos - start >= 10) { return -1; }
continue;
}
// found valid marker
if (ch === 0x29/* ) */ || ch === 0x2e/* . */) {
break;
}
return -1;
}
if (pos < max) {
ch = state.src.charCodeAt(pos);
if (!isSpace(ch)) {
// " 1.test " - is not a list item
return -1;
}
}
return pos;
}
function markTightParagraphs(state, idx) {
var i, l,
level = state.level + 2;
for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
state.tokens[i + 2].hidden = true;
state.tokens[i].hidden = true;
i += 2;
}
}
}
module.exports = function list(state, startLine, endLine, silent) {
var ch,
contentStart,
i,
indent,
indentAfterMarker,
initial,
isOrdered,
itemLines,
l,
listLines,
listTokIdx,
markerCharCode,
markerValue,
max,
nextLine,
offset,
oldListIndent,
oldParentType,
oldSCount,
oldTShift,
oldTight,
pos,
posAfterMarker,
prevEmptyEnd,
start,
terminate,
terminatorRules,
token,
isTerminatingParagraph = false,
tight = true;
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
// Special case:
// - item 1
// - item 2
// - item 3
// - item 4
// - this one is a paragraph continuation
if (state.listIndent >= 0 &&
state.sCount[startLine] - state.listIndent >= 4 &&
state.sCount[startLine] < state.blkIndent) {
return false;
}
// limit conditions when list can interrupt
// a paragraph (validation mode only)
if (silent && state.parentType === 'paragraph') {
// Next list item should still terminate previous list item;
//
// This code can fail if plugins use blkIndent as well as lists,
// but I hope the spec gets fixed long before that happens.
//
if (state.tShift[startLine] >= state.blkIndent) {
isTerminatingParagraph = true;
}
}
// Detect list type and position after marker
if ((posAfterMarker = skipOrderedListMarker(state, startLine)) >= 0) {
isOrdered = true;
start = state.bMarks[startLine] + state.tShift[startLine];
markerValue = Number(state.src.substr(start, posAfterMarker - start - 1));
// If we're starting a new ordered list right after
// a paragraph, it should start with 1.
if (isTerminatingParagraph && markerValue !== 1) return false;
} else if ((posAfterMarker = skipBulletListMarker(state, startLine)) >= 0) {
isOrdered = false;
} else {
return false;
}
// If we're starting a new unordered list right after
// a paragraph, first line should not be empty.
if (isTerminatingParagraph) {
if (state.skipSpaces(posAfterMarker) >= state.eMarks[startLine]) return false;
}
// We should terminate list on style change. Remember first one to compare.
markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
// For validation mode we can terminate immediately
if (silent) { return true; }
// Start list
listTokIdx = state.tokens.length;
if (isOrdered) {
token = state.push('ordered_list_open', 'ol', 1);
if (markerValue !== 1) {
token.attrs = [ [ 'start', markerValue ] ];
}
} else {
token = state.push('bullet_list_open', 'ul', 1);
}
token.map = listLines = [ startLine, 0 ];
token.markup = String.fromCharCode(markerCharCode);
//
// Iterate list items
//
nextLine = startLine;
prevEmptyEnd = false;
terminatorRules = state.md.block.ruler.getRules('list');
oldParentType = state.parentType;
state.parentType = 'list';
while (nextLine < endLine) {
pos = posAfterMarker;
max = state.eMarks[nextLine];
initial = offset = state.sCount[nextLine] + posAfterMarker - (state.bMarks[startLine] + state.tShift[startLine]);
while (pos < max) {
ch = state.src.charCodeAt(pos);
if (ch === 0x09) {
offset += 4 - (offset + state.bsCount[nextLine]) % 4;
} else if (ch === 0x20) {
offset++;
} else {
break;
}
pos++;
}
contentStart = pos;
if (contentStart >= max) {
// trimming space in "- \n 3" case, indent is 1 here
indentAfterMarker = 1;
} else {
indentAfterMarker = offset - initial;
}
// If we have more than 4 spaces, the indent is 1
// (the rest is just indented code block)
if (indentAfterMarker > 4) { indentAfterMarker = 1; }
// " - test"
// ^^^^^ - calculating total length of this thing
indent = initial + indentAfterMarker;
// Run subparser & write tokens
token = state.push('list_item_open', 'li', 1);
token.markup = String.fromCharCode(markerCharCode);
token.map = itemLines = [ startLine, 0 ];
// change current state, then restore it after parser subcall
oldTight = state.tight;
oldTShift = state.tShift[startLine];
oldSCount = state.sCount[startLine];
// - example list
// ^ listIndent position will be here
// ^ blkIndent position will be here
//
oldListIndent = state.listIndent;
state.listIndent = state.blkIndent;
state.blkIndent = indent;
state.tight = true;
state.tShift[startLine] = contentStart - state.bMarks[startLine];
state.sCount[startLine] = offset;
if (contentStart >= max && state.isEmpty(startLine + 1)) {
// workaround for this case
// (list item is empty, list terminates before "foo"):
// ~~~~~~~~
// -
//
// foo
// ~~~~~~~~
state.line = Math.min(state.line + 2, endLine);
} else {
state.md.block.tokenize(state, startLine, endLine, true);
}
// If any of list item is tight, mark list as tight
if (!state.tight || prevEmptyEnd) {
tight = false;
}
// Item become loose if finish with empty line,
// but we should filter last element, because it means list finish
prevEmptyEnd = (state.line - startLine) > 1 && state.isEmpty(state.line - 1);
state.blkIndent = state.listIndent;
state.listIndent = oldListIndent;
state.tShift[startLine] = oldTShift;
state.sCount[startLine] = oldSCount;
state.tight = oldTight;
token = state.push('list_item_close', 'li', -1);
token.markup = String.fromCharCode(markerCharCode);
nextLine = startLine = state.line;
itemLines[1] = nextLine;
contentStart = state.bMarks[startLine];
if (nextLine >= endLine) { break; }
//
// Try to check if list is terminated or continued.
//
if (state.sCount[nextLine] < state.blkIndent) { break; }
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { break; }
// fail if terminating block found
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
// fail if list has another type
if (isOrdered) {
posAfterMarker = skipOrderedListMarker(state, nextLine);
if (posAfterMarker < 0) { break; }
} else {
posAfterMarker = skipBulletListMarker(state, nextLine);
if (posAfterMarker < 0) { break; }
}
if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) { break; }
}
// Finalize list
if (isOrdered) {
token = state.push('ordered_list_close', 'ol', -1);
} else {
token = state.push('bullet_list_close', 'ul', -1);
}
token.markup = String.fromCharCode(markerCharCode);
listLines[1] = nextLine;
state.line = nextLine;
state.parentType = oldParentType;
// mark paragraphs tight if needed
if (tight) {
markTightParagraphs(state, listTokIdx);
}
return true;
};

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// Paragraph
'use strict';
module.exports = function paragraph(state, startLine/*, endLine*/) {
var content, terminate, i, l, token, oldParentType,
nextLine = startLine + 1,
terminatorRules = state.md.block.ruler.getRules('paragraph'),
endLine = state.lineMax;
oldParentType = state.parentType;
state.parentType = 'paragraph';
// jump line-by-line until empty one or EOF
for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
// this would be a code block normally, but after paragraph
// it's considered a lazy continuation regardless of what's there
if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }
// quirk for blockquotes, this line should already be checked by that rule
if (state.sCount[nextLine] < 0) { continue; }
// Some tags can terminate paragraph without empty line.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
}
content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
state.line = nextLine;
token = state.push('paragraph_open', 'p', 1);
token.map = [ startLine, state.line ];
token = state.push('inline', '', 0);
token.content = content;
token.map = [ startLine, state.line ];
token.children = [];
token = state.push('paragraph_close', 'p', -1);
state.parentType = oldParentType;
return true;
};

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'use strict';
var normalizeReference = require('../common/utils').normalizeReference;
var isSpace = require('../common/utils').isSpace;
module.exports = function reference(state, startLine, _endLine, silent) {
var ch,
destEndPos,
destEndLineNo,
endLine,
href,
i,
l,
label,
labelEnd,
oldParentType,
res,
start,
str,
terminate,
terminatorRules,
title,
lines = 0,
pos = state.bMarks[startLine] + state.tShift[startLine],
max = state.eMarks[startLine],
nextLine = startLine + 1;
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
if (state.src.charCodeAt(pos) !== 0x5B/* [ */) { return false; }
// Simple check to quickly interrupt scan on [link](url) at the start of line.
// Can be useful on practice: https://github.com/markdown-it/markdown-it/issues/54
while (++pos < max) {
if (state.src.charCodeAt(pos) === 0x5D /* ] */ &&
state.src.charCodeAt(pos - 1) !== 0x5C/* \ */) {
if (pos + 1 === max) { return false; }
if (state.src.charCodeAt(pos + 1) !== 0x3A/* : */) { return false; }
break;
}
}
endLine = state.lineMax;
// jump line-by-line until empty one or EOF
terminatorRules = state.md.block.ruler.getRules('reference');
oldParentType = state.parentType;
state.parentType = 'reference';
for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
// this would be a code block normally, but after paragraph
// it's considered a lazy continuation regardless of what's there
if (state.sCount[nextLine] - state.blkIndent > 3) { continue; }
// quirk for blockquotes, this line should already be checked by that rule
if (state.sCount[nextLine] < 0) { continue; }
// Some tags can terminate paragraph without empty line.
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
}
str = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
max = str.length;
for (pos = 1; pos < max; pos++) {
ch = str.charCodeAt(pos);
if (ch === 0x5B /* [ */) {
return false;
} else if (ch === 0x5D /* ] */) {
labelEnd = pos;
break;
} else if (ch === 0x0A /* \n */) {
lines++;
} else if (ch === 0x5C /* \ */) {
pos++;
if (pos < max && str.charCodeAt(pos) === 0x0A) {
lines++;
}
}
}
if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return false; }
// [label]: destination 'title'
// ^^^ skip optional whitespace here
for (pos = labelEnd + 2; pos < max; pos++) {
ch = str.charCodeAt(pos);
if (ch === 0x0A) {
lines++;
} else if (isSpace(ch)) {
/*eslint no-empty:0*/
} else {
break;
}
}
// [label]: destination 'title'
// ^^^^^^^^^^^ parse this
res = state.md.helpers.parseLinkDestination(str, pos, max);
if (!res.ok) { return false; }
href = state.md.normalizeLink(res.str);
if (!state.md.validateLink(href)) { return false; }
pos = res.pos;
lines += res.lines;
// save cursor state, we could require to rollback later
destEndPos = pos;
destEndLineNo = lines;
// [label]: destination 'title'
// ^^^ skipping those spaces
start = pos;
for (; pos < max; pos++) {
ch = str.charCodeAt(pos);
if (ch === 0x0A) {
lines++;
} else if (isSpace(ch)) {
/*eslint no-empty:0*/
} else {
break;
}
}
// [label]: destination 'title'
// ^^^^^^^ parse this
res = state.md.helpers.parseLinkTitle(str, pos, max);
if (pos < max && start !== pos && res.ok) {
title = res.str;
pos = res.pos;
lines += res.lines;
} else {
title = '';
pos = destEndPos;
lines = destEndLineNo;
}
// skip trailing spaces until the rest of the line
while (pos < max) {
ch = str.charCodeAt(pos);
if (!isSpace(ch)) { break; }
pos++;
}
if (pos < max && str.charCodeAt(pos) !== 0x0A) {
if (title) {
// garbage at the end of the line after title,
// but it could still be a valid reference if we roll back
title = '';
pos = destEndPos;
lines = destEndLineNo;
while (pos < max) {
ch = str.charCodeAt(pos);
if (!isSpace(ch)) { break; }
pos++;
}
}
}
if (pos < max && str.charCodeAt(pos) !== 0x0A) {
// garbage at the end of the line
return false;
}
label = normalizeReference(str.slice(1, labelEnd));
if (!label) {
// CommonMark 0.20 disallows empty labels
return false;
}
// Reference can not terminate anything. This check is for safety only.
/*istanbul ignore if*/
if (silent) { return true; }
if (typeof state.env.references === 'undefined') {
state.env.references = {};
}
if (typeof state.env.references[label] === 'undefined') {
state.env.references[label] = { title: title, href: href };
}
state.parentType = oldParentType;
state.line = startLine + lines + 1;
return true;
};

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// Parser state class
'use strict';
var Token = require('../token');
var isSpace = require('../common/utils').isSpace;
function StateBlock(src, md, env, tokens) {
var ch, s, start, pos, len, indent, offset, indent_found;
this.src = src;
// link to parser instance
this.md = md;
this.env = env;
//
// Internal state vartiables
//
this.tokens = tokens;
this.bMarks = []; // line begin offsets for fast jumps
this.eMarks = []; // line end offsets for fast jumps
this.tShift = []; // offsets of the first non-space characters (tabs not expanded)
this.sCount = []; // indents for each line (tabs expanded)
// An amount of virtual spaces (tabs expanded) between beginning
// of each line (bMarks) and real beginning of that line.
//
// It exists only as a hack because blockquotes override bMarks
// losing information in the process.
//
// It's used only when expanding tabs, you can think about it as
// an initial tab length, e.g. bsCount=21 applied to string `\t123`
// means first tab should be expanded to 4-21%4 === 3 spaces.
//
this.bsCount = [];
// block parser variables
this.blkIndent = 0; // required block content indent (for example, if we are
// inside a list, it would be positioned after list marker)
this.line = 0; // line index in src
this.lineMax = 0; // lines count
this.tight = false; // loose/tight mode for lists
this.ddIndent = -1; // indent of the current dd block (-1 if there isn't any)
this.listIndent = -1; // indent of the current list block (-1 if there isn't any)
// can be 'blockquote', 'list', 'root', 'paragraph' or 'reference'
// used in lists to determine if they interrupt a paragraph
this.parentType = 'root';
this.level = 0;
// renderer
this.result = '';
// Create caches
// Generate markers.
s = this.src;
indent_found = false;
for (start = pos = indent = offset = 0, len = s.length; pos < len; pos++) {
ch = s.charCodeAt(pos);
if (!indent_found) {
if (isSpace(ch)) {
indent++;
if (ch === 0x09) {
offset += 4 - offset % 4;
} else {
offset++;
}
continue;
} else {
indent_found = true;
}
}
if (ch === 0x0A || pos === len - 1) {
if (ch !== 0x0A) { pos++; }
this.bMarks.push(start);
this.eMarks.push(pos);
this.tShift.push(indent);
this.sCount.push(offset);
this.bsCount.push(0);
indent_found = false;
indent = 0;
offset = 0;
start = pos + 1;
}
}
// Push fake entry to simplify cache bounds checks
this.bMarks.push(s.length);
this.eMarks.push(s.length);
this.tShift.push(0);
this.sCount.push(0);
this.bsCount.push(0);
this.lineMax = this.bMarks.length - 1; // don't count last fake line
}
// Push new token to "stream".
//
StateBlock.prototype.push = function (type, tag, nesting) {
var token = new Token(type, tag, nesting);
token.block = true;
if (nesting < 0) this.level--; // closing tag
token.level = this.level;
if (nesting > 0) this.level++; // opening tag
this.tokens.push(token);
return token;
};
StateBlock.prototype.isEmpty = function isEmpty(line) {
return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
};
StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
for (var max = this.lineMax; from < max; from++) {
if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
break;
}
}
return from;
};
// Skip spaces from given position.
StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
var ch;
for (var max = this.src.length; pos < max; pos++) {
ch = this.src.charCodeAt(pos);
if (!isSpace(ch)) { break; }
}
return pos;
};
// Skip spaces from given position in reverse.
StateBlock.prototype.skipSpacesBack = function skipSpacesBack(pos, min) {
if (pos <= min) { return pos; }
while (pos > min) {
if (!isSpace(this.src.charCodeAt(--pos))) { return pos + 1; }
}
return pos;
};
// Skip char codes from given position
StateBlock.prototype.skipChars = function skipChars(pos, code) {
for (var max = this.src.length; pos < max; pos++) {
if (this.src.charCodeAt(pos) !== code) { break; }
}
return pos;
};
// Skip char codes reverse from given position - 1
StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
if (pos <= min) { return pos; }
while (pos > min) {
if (code !== this.src.charCodeAt(--pos)) { return pos + 1; }
}
return pos;
};
// cut lines range from source.
StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
var i, lineIndent, ch, first, last, queue, lineStart,
line = begin;
if (begin >= end) {
return '';
}
queue = new Array(end - begin);
for (i = 0; line < end; line++, i++) {
lineIndent = 0;
lineStart = first = this.bMarks[line];
if (line + 1 < end || keepLastLF) {
// No need for bounds check because we have fake entry on tail.
last = this.eMarks[line] + 1;
} else {
last = this.eMarks[line];
}
while (first < last && lineIndent < indent) {
ch = this.src.charCodeAt(first);
if (isSpace(ch)) {
if (ch === 0x09) {
lineIndent += 4 - (lineIndent + this.bsCount[line]) % 4;
} else {
lineIndent++;
}
} else if (first - lineStart < this.tShift[line]) {
// patched tShift masked characters to look like spaces (blockquotes, list markers)
lineIndent++;
} else {
break;
}
first++;
}
if (lineIndent > indent) {
// partially expanding tabs in code blocks, e.g '\t\tfoobar'
// with indent=2 becomes ' \tfoobar'
queue[i] = new Array(lineIndent - indent + 1).join(' ') + this.src.slice(first, last);
} else {
queue[i] = this.src.slice(first, last);
}
}
return queue.join('');
};
// re-export Token class to use in block rules
StateBlock.prototype.Token = Token;
module.exports = StateBlock;

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// GFM table, non-standard
'use strict';
var isSpace = require('../common/utils').isSpace;
function getLine(state, line) {
var pos = state.bMarks[line] + state.blkIndent,
max = state.eMarks[line];
return state.src.substr(pos, max - pos);
}
function escapedSplit(str) {
var result = [],
pos = 0,
max = str.length,
ch,
escapes = 0,
lastPos = 0,
backTicked = false,
lastBackTick = 0;
ch = str.charCodeAt(pos);
while (pos < max) {
if (ch === 0x60/* ` */) {
if (backTicked) {
// make \` close code sequence, but not open it;
// the reason is: `\` is correct code block
backTicked = false;
lastBackTick = pos;
} else if (escapes % 2 === 0) {
backTicked = true;
lastBackTick = pos;
}
} else if (ch === 0x7c/* | */ && (escapes % 2 === 0) && !backTicked) {
result.push(str.substring(lastPos, pos));
lastPos = pos + 1;
}
if (ch === 0x5c/* \ */) {
escapes++;
} else {
escapes = 0;
}
pos++;
// If there was an un-closed backtick, go back to just after
// the last backtick, but as if it was a normal character
if (pos === max && backTicked) {
backTicked = false;
pos = lastBackTick + 1;
}
ch = str.charCodeAt(pos);
}
result.push(str.substring(lastPos));
return result;
}
module.exports = function table(state, startLine, endLine, silent) {
var ch, lineText, pos, i, nextLine, columns, columnCount, token,
aligns, t, tableLines, tbodyLines;
// should have at least two lines
if (startLine + 2 > endLine) { return false; }
nextLine = startLine + 1;
if (state.sCount[nextLine] < state.blkIndent) { return false; }
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[nextLine] - state.blkIndent >= 4) { return false; }
// first character of the second line should be '|', '-', ':',
// and no other characters are allowed but spaces;
// basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp
pos = state.bMarks[nextLine] + state.tShift[nextLine];
if (pos >= state.eMarks[nextLine]) { return false; }
ch = state.src.charCodeAt(pos++);
if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; }
while (pos < state.eMarks[nextLine]) {
ch = state.src.charCodeAt(pos);
if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */ && !isSpace(ch)) { return false; }
pos++;
}
lineText = getLine(state, startLine + 1);
columns = lineText.split('|');
aligns = [];
for (i = 0; i < columns.length; i++) {
t = columns[i].trim();
if (!t) {
// allow empty columns before and after table, but not in between columns;
// e.g. allow ` |---| `, disallow ` ---||--- `
if (i === 0 || i === columns.length - 1) {
continue;
} else {
return false;
}
}
if (!/^:?-+:?$/.test(t)) { return false; }
if (t.charCodeAt(t.length - 1) === 0x3A/* : */) {
aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right');
} else if (t.charCodeAt(0) === 0x3A/* : */) {
aligns.push('left');
} else {
aligns.push('');
}
}
lineText = getLine(state, startLine).trim();
if (lineText.indexOf('|') === -1) { return false; }
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
columns = escapedSplit(lineText.replace(/^\||\|$/g, ''));
// header row will define an amount of columns in the entire table,
// and align row shouldn't be smaller than that (the rest of the rows can)
columnCount = columns.length;
if (columnCount > aligns.length) { return false; }
if (silent) { return true; }
token = state.push('table_open', 'table', 1);
token.map = tableLines = [ startLine, 0 ];
token = state.push('thead_open', 'thead', 1);
token.map = [ startLine, startLine + 1 ];
token = state.push('tr_open', 'tr', 1);
token.map = [ startLine, startLine + 1 ];
for (i = 0; i < columns.length; i++) {
token = state.push('th_open', 'th', 1);
token.map = [ startLine, startLine + 1 ];
if (aligns[i]) {
token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ];
}
token = state.push('inline', '', 0);
token.content = columns[i].trim();
token.map = [ startLine, startLine + 1 ];
token.children = [];
token = state.push('th_close', 'th', -1);
}
token = state.push('tr_close', 'tr', -1);
token = state.push('thead_close', 'thead', -1);
token = state.push('tbody_open', 'tbody', 1);
token.map = tbodyLines = [ startLine + 2, 0 ];
for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
if (state.sCount[nextLine] < state.blkIndent) { break; }
lineText = getLine(state, nextLine).trim();
if (lineText.indexOf('|') === -1) { break; }
if (state.sCount[nextLine] - state.blkIndent >= 4) { break; }
columns = escapedSplit(lineText.replace(/^\||\|$/g, ''));
token = state.push('tr_open', 'tr', 1);
for (i = 0; i < columnCount; i++) {
token = state.push('td_open', 'td', 1);
token.map = [ nextLine, nextLine + 1 ];
if (aligns[i]) {
token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ];
}
token = state.push('inline', '', 0);
token.map = [ nextLine, nextLine + 1 ];
token.content = columns[i] ? columns[i].trim() : '';
token.children = [];
token = state.push('td_close', 'td', -1);
}
token = state.push('tr_close', 'tr', -1);
}
token = state.push('tbody_close', 'tbody', -1);
token = state.push('table_close', 'table', -1);
tableLines[1] = tbodyLines[1] = nextLine;
state.line = nextLine;
return true;
};

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'use strict';
module.exports = function block(state) {
var token;
if (state.inlineMode) {
token = new state.Token('inline', '', 0);
token.content = state.src;
token.map = [ 0, 1 ];
token.children = [];
state.tokens.push(token);
} else {
state.md.block.parse(state.src, state.md, state.env, state.tokens);
}
};

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'use strict';
module.exports = function inline(state) {
var tokens = state.tokens, tok, i, l;
// Parse inlines
for (i = 0, l = tokens.length; i < l; i++) {
tok = tokens[i];
if (tok.type === 'inline') {
state.md.inline.parse(tok.content, state.md, state.env, tok.children);
}
}
};

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// Replace link-like texts with link nodes.
//
// Currently restricted by `md.validateLink()` to http/https/ftp
//
'use strict';
var arrayReplaceAt = require('../common/utils').arrayReplaceAt;
function isLinkOpen(str) {
return /^<a[>\s]/i.test(str);
}
function isLinkClose(str) {
return /^<\/a\s*>/i.test(str);
}
module.exports = function linkify(state) {
var i, j, l, tokens, token, currentToken, nodes, ln, text, pos, lastPos,
level, htmlLinkLevel, url, fullUrl, urlText,
blockTokens = state.tokens,
links;
if (!state.md.options.linkify) { return; }
for (j = 0, l = blockTokens.length; j < l; j++) {
if (blockTokens[j].type !== 'inline' ||
!state.md.linkify.pretest(blockTokens[j].content)) {
continue;
}
tokens = blockTokens[j].children;
htmlLinkLevel = 0;
// We scan from the end, to keep position when new tags added.
// Use reversed logic in links start/end match
for (i = tokens.length - 1; i >= 0; i--) {
currentToken = tokens[i];
// Skip content of markdown links
if (currentToken.type === 'link_close') {
i--;
while (tokens[i].level !== currentToken.level && tokens[i].type !== 'link_open') {
i--;
}
continue;
}
// Skip content of html tag links
if (currentToken.type === 'html_inline') {
if (isLinkOpen(currentToken.content) && htmlLinkLevel > 0) {
htmlLinkLevel--;
}
if (isLinkClose(currentToken.content)) {
htmlLinkLevel++;
}
}
if (htmlLinkLevel > 0) { continue; }
if (currentToken.type === 'text' && state.md.linkify.test(currentToken.content)) {
text = currentToken.content;
links = state.md.linkify.match(text);
// Now split string to nodes
nodes = [];
level = currentToken.level;
lastPos = 0;
for (ln = 0; ln < links.length; ln++) {
url = links[ln].url;
fullUrl = state.md.normalizeLink(url);
if (fullUrl) {
fullUrl = '/out/?uri=' + fullUrl;
}
if (!state.md.validateLink(fullUrl)) { continue; }
urlText = links[ln].text;
// Linkifier might send raw hostnames like "example.com", where url
// starts with domain name. So we prepend http:// in those cases,
// and remove it afterwards.
//
if (!links[ln].schema) {
urlText = state.md.normalizeLinkText('http://' + urlText).replace(/^http:\/\//, '');
} else if (links[ln].schema === 'mailto:' && !/^mailto:/i.test(urlText)) {
urlText = state.md.normalizeLinkText('mailto:' + urlText).replace(/^mailto:/, '');
} else {
urlText = state.md.normalizeLinkText(urlText);
}
pos = links[ln].index;
if (pos > lastPos) {
token = new state.Token('text', '', 0);
token.content = text.slice(lastPos, pos);
token.level = level;
nodes.push(token);
}
token = new state.Token('link_open', 'a', 1);
token.attrs = [ [ 'href', fullUrl ] ];
token.level = level++;
token.markup = 'linkify';
token.info = 'auto';
nodes.push(token);
token = new state.Token('text', '', 0);
token.content = urlText;
token.level = level;
nodes.push(token);
token = new state.Token('link_close', 'a', -1);
token.level = --level;
token.markup = 'linkify';
token.info = 'auto';
nodes.push(token);
lastPos = links[ln].lastIndex;
}
if (lastPos < text.length) {
token = new state.Token('text', '', 0);
token.content = text.slice(lastPos);
token.level = level;
nodes.push(token);
}
// replace current node
blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
}
}
}
};

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// Normalize input string
'use strict';
// https://spec.commonmark.org/0.29/#line-ending
var NEWLINES_RE = /\r\n?|\n/g;
var NULL_RE = /\0/g;
module.exports = function normalize(state) {
var str;
// Normalize newlines
str = state.src.replace(NEWLINES_RE, '\n');
// Replace NULL characters
str = str.replace(NULL_RE, '\uFFFD');
state.src = str;
};

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// Simple typographic replacements
//
// (c) (C) → ©
// (tm) (TM) → ™
// (r) (R) → ®
// +- → ±
// (p) (P) -> §
// ... → … (also ?.... → ?.., !.... → !..)
// ???????? → ???, !!!!! → !!!, `,,` → `,`
// -- → &ndash;, --- → &mdash;
//
'use strict';
// TODO:
// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
// - miltiplication 2 x 4 -> 2 × 4
var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
// Workaround for phantomjs - need regex without /g flag,
// or root check will fail every second time
var SCOPED_ABBR_TEST_RE = /\((c|tm|r|p)\)/i;
var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig;
var SCOPED_ABBR = {
c: '©',
r: '®',
p: '§',
tm: '™'
};
function replaceFn(match, name) {
return SCOPED_ABBR[name.toLowerCase()];
}
function replace_scoped(inlineTokens) {
var i, token, inside_autolink = 0;
for (i = inlineTokens.length - 1; i >= 0; i--) {
token = inlineTokens[i];
if (token.type === 'text' && !inside_autolink) {
token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn);
}
if (token.type === 'link_open' && token.info === 'auto') {
inside_autolink--;
}
if (token.type === 'link_close' && token.info === 'auto') {
inside_autolink++;
}
}
}
function replace_rare(inlineTokens) {
var i, token, inside_autolink = 0;
for (i = inlineTokens.length - 1; i >= 0; i--) {
token = inlineTokens[i];
if (token.type === 'text' && !inside_autolink) {
if (RARE_RE.test(token.content)) {
token.content = token.content
.replace(/\+-/g, '±')
// .., ..., ....... -> …
// but ?..... & !..... -> ?.. & !..
.replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..')
.replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',')
// em-dash
.replace(/(^|[^-])---(?=[^-]|$)/mg, '$1\u2014')
// en-dash
.replace(/(^|\s)--(?=\s|$)/mg, '$1\u2013')
.replace(/(^|[^-\s])--(?=[^-\s]|$)/mg, '$1\u2013');
}
}
if (token.type === 'link_open' && token.info === 'auto') {
inside_autolink--;
}
if (token.type === 'link_close' && token.info === 'auto') {
inside_autolink++;
}
}
}
module.exports = function replace(state) {
var blkIdx;
if (!state.md.options.typographer) { return; }
for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
if (state.tokens[blkIdx].type !== 'inline') { continue; }
if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
replace_scoped(state.tokens[blkIdx].children);
}
if (RARE_RE.test(state.tokens[blkIdx].content)) {
replace_rare(state.tokens[blkIdx].children);
}
}
};

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// Convert straight quotation marks to typographic ones
//
'use strict';
var isWhiteSpace = require('../common/utils').isWhiteSpace;
var isPunctChar = require('../common/utils').isPunctChar;
var isMdAsciiPunct = require('../common/utils').isMdAsciiPunct;
var QUOTE_TEST_RE = /['"]/;
var QUOTE_RE = /['"]/g;
var APOSTROPHE = '\u2019'; /* ’ */
function replaceAt(str, index, ch) {
return str.substr(0, index) + ch + str.substr(index + 1);
}
function process_inlines(tokens, state) {
var i, token, text, t, pos, max, thisLevel, item, lastChar, nextChar,
isLastPunctChar, isNextPunctChar, isLastWhiteSpace, isNextWhiteSpace,
canOpen, canClose, j, isSingle, stack, openQuote, closeQuote;
stack = [];
for (i = 0; i < tokens.length; i++) {
token = tokens[i];
thisLevel = tokens[i].level;
for (j = stack.length - 1; j >= 0; j--) {
if (stack[j].level <= thisLevel) { break; }
}
stack.length = j + 1;
if (token.type !== 'text') { continue; }
text = token.content;
pos = 0;
max = text.length;
/*eslint no-labels:0,block-scoped-var:0*/
OUTER:
while (pos < max) {
QUOTE_RE.lastIndex = pos;
t = QUOTE_RE.exec(text);
if (!t) { break; }
canOpen = canClose = true;
pos = t.index + 1;
isSingle = (t[0] === "'");
// Find previous character,
// default to space if it's the beginning of the line
//
lastChar = 0x20;
if (t.index - 1 >= 0) {
lastChar = text.charCodeAt(t.index - 1);
} else {
for (j = i - 1; j >= 0; j--) {
if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // lastChar defaults to 0x20
if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
break;
}
}
// Find next character,
// default to space if it's the end of the line
//
nextChar = 0x20;
if (pos < max) {
nextChar = text.charCodeAt(pos);
} else {
for (j = i + 1; j < tokens.length; j++) {
if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // nextChar defaults to 0x20
if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
nextChar = tokens[j].content.charCodeAt(0);
break;
}
}
isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
isLastWhiteSpace = isWhiteSpace(lastChar);
isNextWhiteSpace = isWhiteSpace(nextChar);
if (isNextWhiteSpace) {
canOpen = false;
} else if (isNextPunctChar) {
if (!(isLastWhiteSpace || isLastPunctChar)) {
canOpen = false;
}
}
if (isLastWhiteSpace) {
canClose = false;
} else if (isLastPunctChar) {
if (!(isNextWhiteSpace || isNextPunctChar)) {
canClose = false;
}
}
if (nextChar === 0x22 /* " */ && t[0] === '"') {
if (lastChar >= 0x30 /* 0 */ && lastChar <= 0x39 /* 9 */) {
// special case: 1"" - count first quote as an inch
canClose = canOpen = false;
}
}
if (canOpen && canClose) {
// Replace quotes in the middle of punctuation sequence, but not
// in the middle of the words, i.e.:
//
// 1. foo " bar " baz - not replaced
// 2. foo-"-bar-"-baz - replaced
// 3. foo"bar"baz - not replaced
//
canOpen = isLastPunctChar;
canClose = isNextPunctChar;
}
if (!canOpen && !canClose) {
// middle of word
if (isSingle) {
token.content = replaceAt(token.content, t.index, APOSTROPHE);
}
continue;
}
if (canClose) {
// this could be a closing quote, rewind the stack to get a match
for (j = stack.length - 1; j >= 0; j--) {
item = stack[j];
if (stack[j].level < thisLevel) { break; }
if (item.single === isSingle && stack[j].level === thisLevel) {
item = stack[j];
if (isSingle) {
openQuote = state.md.options.quotes[2];
closeQuote = state.md.options.quotes[3];
} else {
openQuote = state.md.options.quotes[0];
closeQuote = state.md.options.quotes[1];
}
// replace token.content *before* tokens[item.token].content,
// because, if they are pointing at the same token, replaceAt
// could mess up indices when quote length != 1
token.content = replaceAt(token.content, t.index, closeQuote);
tokens[item.token].content = replaceAt(
tokens[item.token].content, item.pos, openQuote);
pos += closeQuote.length - 1;
if (item.token === i) { pos += openQuote.length - 1; }
text = token.content;
max = text.length;
stack.length = j;
continue OUTER;
}
}
}
if (canOpen) {
stack.push({
token: i,
pos: t.index,
single: isSingle,
level: thisLevel
});
} else if (canClose && isSingle) {
token.content = replaceAt(token.content, t.index, APOSTROPHE);
}
}
}
}
module.exports = function smartquotes(state) {
/*eslint max-depth:0*/
var blkIdx;
if (!state.md.options.typographer) { return; }
for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
if (state.tokens[blkIdx].type !== 'inline' ||
!QUOTE_TEST_RE.test(state.tokens[blkIdx].content)) {
continue;
}
process_inlines(state.tokens[blkIdx].children, state);
}
};

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// Core state object
//
'use strict';
var Token = require('../token');
function StateCore(src, md, env) {
this.src = src;
this.env = env;
this.tokens = [];
this.inlineMode = false;
this.md = md; // link to parser instance
}
// re-export Token class to use in core rules
StateCore.prototype.Token = Token;
module.exports = StateCore;

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// Process autolinks '<protocol:...>'
'use strict';
/*eslint max-len:0*/
var EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/;
var AUTOLINK_RE = /^<([a-zA-Z][a-zA-Z0-9+.\-]{1,31}):([^<>\x00-\x20]*)>/;
module.exports = function autolink(state, silent) {
var tail, linkMatch, emailMatch, url, fullUrl, token,
pos = state.pos;
if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; }
tail = state.src.slice(pos);
if (tail.indexOf('>') < 0) { return false; }
if (AUTOLINK_RE.test(tail)) {
linkMatch = tail.match(AUTOLINK_RE);
url = linkMatch[0].slice(1, -1);
fullUrl = state.md.normalizeLink(url);
if (!state.md.validateLink(fullUrl)) { return false; }
if (!silent) {
token = state.push('link_open', 'a', 1);
token.attrs = [ [ 'href', fullUrl ] ];
token.markup = 'autolink';
token.info = 'auto';
token = state.push('text', '', 0);
token.content = state.md.normalizeLinkText(url);
token = state.push('link_close', 'a', -1);
token.markup = 'autolink';
token.info = 'auto';
}
state.pos += linkMatch[0].length;
return true;
}
if (EMAIL_RE.test(tail)) {
emailMatch = tail.match(EMAIL_RE);
url = emailMatch[0].slice(1, -1);
fullUrl = state.md.normalizeLink('mailto:' + url);
if (!state.md.validateLink(fullUrl)) { return false; }
if (!silent) {
token = state.push('link_open', 'a', 1);
token.attrs = [ [ 'href', fullUrl ] ];
token.markup = 'autolink';
token.info = 'auto';
token = state.push('text', '', 0);
token.content = state.md.normalizeLinkText(url);
token = state.push('link_close', 'a', -1);
token.markup = 'autolink';
token.info = 'auto';
}
state.pos += emailMatch[0].length;
return true;
}
return false;
};

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// Parse backticks
'use strict';
module.exports = function backtick(state, silent) {
var start, max, marker, matchStart, matchEnd, token,
pos = state.pos,
ch = state.src.charCodeAt(pos);
if (ch !== 0x60/* ` */) { return false; }
start = pos;
pos++;
max = state.posMax;
while (pos < max && state.src.charCodeAt(pos) === 0x60/* ` */) { pos++; }
marker = state.src.slice(start, pos);
matchStart = matchEnd = pos;
while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) {
matchEnd = matchStart + 1;
while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60/* ` */) { matchEnd++; }
if (matchEnd - matchStart === marker.length) {
if (!silent) {
token = state.push('code_inline', 'code', 0);
token.markup = marker;
token.content = state.src.slice(pos, matchStart)
.replace(/\n/g, ' ')
.replace(/^ (.+) $/, '$1');
}
state.pos = matchEnd;
return true;
}
}
if (!silent) { state.pending += marker; }
state.pos += marker.length;
return true;
};

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// For each opening emphasis-like marker find a matching closing one
//
'use strict';
function processDelimiters(state, delimiters) {
var closerIdx, openerIdx, closer, opener, minOpenerIdx, newMinOpenerIdx,
isOddMatch, lastJump,
openersBottom = {},
max = delimiters.length;
for (closerIdx = 0; closerIdx < max; closerIdx++) {
closer = delimiters[closerIdx];
// Length is only used for emphasis-specific "rule of 3",
// if it's not defined (in strikethrough or 3rd party plugins),
// we can default it to 0 to disable those checks.
//
closer.length = closer.length || 0;
if (!closer.close) continue;
// Previously calculated lower bounds (previous fails)
// for each marker and each delimiter length modulo 3.
if (!openersBottom.hasOwnProperty(closer.marker)) {
openersBottom[closer.marker] = [ -1, -1, -1 ];
}
minOpenerIdx = openersBottom[closer.marker][closer.length % 3];
newMinOpenerIdx = -1;
openerIdx = closerIdx - closer.jump - 1;
for (; openerIdx > minOpenerIdx; openerIdx -= opener.jump + 1) {
opener = delimiters[openerIdx];
if (opener.marker !== closer.marker) continue;
if (newMinOpenerIdx === -1) newMinOpenerIdx = openerIdx;
if (opener.open && opener.end < 0) {
isOddMatch = false;
// from spec:
//
// If one of the delimiters can both open and close emphasis, then the
// sum of the lengths of the delimiter runs containing the opening and
// closing delimiters must not be a multiple of 3 unless both lengths
// are multiples of 3.
//
if (opener.close || closer.open) {
if ((opener.length + closer.length) % 3 === 0) {
if (opener.length % 3 !== 0 || closer.length % 3 !== 0) {
isOddMatch = true;
}
}
}
if (!isOddMatch) {
// If previous delimiter cannot be an opener, we can safely skip
// the entire sequence in future checks. This is required to make
// sure algorithm has linear complexity (see *_*_*_*_*_... case).
//
lastJump = openerIdx > 0 && !delimiters[openerIdx - 1].open ?
delimiters[openerIdx - 1].jump + 1 :
0;
closer.jump = closerIdx - openerIdx + lastJump;
closer.open = false;
opener.end = closerIdx;
opener.jump = lastJump;
opener.close = false;
newMinOpenerIdx = -1;
break;
}
}
}
if (newMinOpenerIdx !== -1) {
// If match for this delimiter run failed, we want to set lower bound for
// future lookups. This is required to make sure algorithm has linear
// complexity.
//
// See details here:
// https://github.com/commonmark/cmark/issues/178#issuecomment-270417442
//
openersBottom[closer.marker][(closer.length || 0) % 3] = newMinOpenerIdx;
}
}
}
module.exports = function link_pairs(state) {
var curr,
tokens_meta = state.tokens_meta,
max = state.tokens_meta.length;
processDelimiters(state, state.delimiters);
for (curr = 0; curr < max; curr++) {
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
processDelimiters(state, tokens_meta[curr].delimiters);
}
}
};

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// Process *this* and _that_
//
'use strict';
// Insert each marker as a separate text token, and add it to delimiter list
//
module.exports.tokenize = function emphasis(state, silent) {
var i, scanned, token,
start = state.pos,
marker = state.src.charCodeAt(start);
if (silent) { return false; }
if (marker !== 0x5F /* _ */ && marker !== 0x2A /* * */) { return false; }
scanned = state.scanDelims(state.pos, marker === 0x2A);
for (i = 0; i < scanned.length; i++) {
token = state.push('text', '', 0);
token.content = String.fromCharCode(marker);
state.delimiters.push({
// Char code of the starting marker (number).
//
marker: marker,
// Total length of these series of delimiters.
//
length: scanned.length,
// An amount of characters before this one that's equivalent to
// current one. In plain English: if this delimiter does not open
// an emphasis, neither do previous `jump` characters.
//
// Used to skip sequences like "*****" in one step, for 1st asterisk
// value will be 0, for 2nd it's 1 and so on.
//
jump: i,
// A position of the token this delimiter corresponds to.
//
token: state.tokens.length - 1,
// If this delimiter is matched as a valid opener, `end` will be
// equal to its position, otherwise it's `-1`.
//
end: -1,
// Boolean flags that determine if this delimiter could open or close
// an emphasis.
//
open: scanned.can_open,
close: scanned.can_close
});
}
state.pos += scanned.length;
return true;
};
function postProcess(state, delimiters) {
var i,
startDelim,
endDelim,
token,
ch,
isStrong,
max = delimiters.length;
for (i = max - 1; i >= 0; i--) {
startDelim = delimiters[i];
if (startDelim.marker !== 0x5F/* _ */ && startDelim.marker !== 0x2A/* * */) {
continue;
}
// Process only opening markers
if (startDelim.end === -1) {
continue;
}
endDelim = delimiters[startDelim.end];
// If the previous delimiter has the same marker and is adjacent to this one,
// merge those into one strong delimiter.
//
// `<em><em>whatever</em></em>` -> `<strong>whatever</strong>`
//
isStrong = i > 0 &&
delimiters[i - 1].end === startDelim.end + 1 &&
delimiters[i - 1].token === startDelim.token - 1 &&
delimiters[startDelim.end + 1].token === endDelim.token + 1 &&
delimiters[i - 1].marker === startDelim.marker;
ch = String.fromCharCode(startDelim.marker);
token = state.tokens[startDelim.token];
token.type = isStrong ? 'strong_open' : 'em_open';
token.tag = isStrong ? 'strong' : 'em';
token.nesting = 1;
token.markup = isStrong ? ch + ch : ch;
token.content = '';
token = state.tokens[endDelim.token];
token.type = isStrong ? 'strong_close' : 'em_close';
token.tag = isStrong ? 'strong' : 'em';
token.nesting = -1;
token.markup = isStrong ? ch + ch : ch;
token.content = '';
if (isStrong) {
state.tokens[delimiters[i - 1].token].content = '';
state.tokens[delimiters[startDelim.end + 1].token].content = '';
i--;
}
}
}
// Walk through delimiter list and replace text tokens with tags
//
module.exports.postProcess = function emphasis(state) {
var curr,
tokens_meta = state.tokens_meta,
max = state.tokens_meta.length;
postProcess(state, state.delimiters);
for (curr = 0; curr < max; curr++) {
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
postProcess(state, tokens_meta[curr].delimiters);
}
}
};

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// Process html entity - &#123;, &#xAF;, &quot;, ...
'use strict';
var entities = require('../common/entities');
var has = require('../common/utils').has;
var isValidEntityCode = require('../common/utils').isValidEntityCode;
var fromCodePoint = require('../common/utils').fromCodePoint;
var DIGITAL_RE = /^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));/i;
var NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i;
module.exports = function entity(state, silent) {
var ch, code, match, pos = state.pos, max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x26/* & */) { return false; }
if (pos + 1 < max) {
ch = state.src.charCodeAt(pos + 1);
if (ch === 0x23 /* # */) {
match = state.src.slice(pos).match(DIGITAL_RE);
if (match) {
if (!silent) {
code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
state.pending += isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD);
}
state.pos += match[0].length;
return true;
}
} else {
match = state.src.slice(pos).match(NAMED_RE);
if (match) {
if (has(entities, match[1])) {
if (!silent) { state.pending += entities[match[1]]; }
state.pos += match[0].length;
return true;
}
}
}
}
if (!silent) { state.pending += '&'; }
state.pos++;
return true;
};

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// Process escaped chars and hardbreaks
'use strict';
var isSpace = require('../common/utils').isSpace;
var ESCAPED = [];
for (var i = 0; i < 256; i++) { ESCAPED.push(0); }
'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'
.split('').forEach(function (ch) { ESCAPED[ch.charCodeAt(0)] = 1; });
module.exports = function escape(state, silent) {
var ch, pos = state.pos, max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; }
pos++;
if (pos < max) {
ch = state.src.charCodeAt(pos);
if (ch < 256 && ESCAPED[ch] !== 0) {
if (!silent) { state.pending += state.src[pos]; }
state.pos += 2;
return true;
}
if (ch === 0x0A) {
if (!silent) {
state.push('hardbreak', 'br', 0);
}
pos++;
// skip leading whitespaces from next line
while (pos < max) {
ch = state.src.charCodeAt(pos);
if (!isSpace(ch)) { break; }
pos++;
}
state.pos = pos;
return true;
}
}
if (!silent) { state.pending += '\\'; }
state.pos++;
return true;
};

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// Process html tags
'use strict';
var HTML_TAG_RE = require('../common/html_re').HTML_TAG_RE;
function isLetter(ch) {
/*eslint no-bitwise:0*/
var lc = ch | 0x20; // to lower case
return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */);
}
module.exports = function html_inline(state, silent) {
var ch, match, max, token,
pos = state.pos;
if (!state.md.options.html) { return false; }
// Check start
max = state.posMax;
if (state.src.charCodeAt(pos) !== 0x3C/* < */ ||
pos + 2 >= max) {
return false;
}
// Quick fail on second char
ch = state.src.charCodeAt(pos + 1);
if (ch !== 0x21/* ! */ &&
ch !== 0x3F/* ? */ &&
ch !== 0x2F/* / */ &&
!isLetter(ch)) {
return false;
}
match = state.src.slice(pos).match(HTML_TAG_RE);
if (!match) { return false; }
if (!silent) {
token = state.push('html_inline', '', 0);
token.content = state.src.slice(pos, pos + match[0].length);
}
state.pos += match[0].length;
return true;
};

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// Process ![image](<src> "title")
'use strict';
var normalizeReference = require('../common/utils').normalizeReference;
var isSpace = require('../common/utils').isSpace;
module.exports = function image(state, silent) {
var attrs,
code,
content,
label,
labelEnd,
labelStart,
pos,
ref,
res,
title,
token,
tokens,
start,
href = '',
oldPos = state.pos,
max = state.posMax;
if (state.src.charCodeAt(state.pos) !== 0x21/* ! */) { return false; }
if (state.src.charCodeAt(state.pos + 1) !== 0x5B/* [ */) { return false; }
labelStart = state.pos + 2;
labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, false);
// parser failed to find ']', so it's not a valid link
if (labelEnd < 0) { return false; }
pos = labelEnd + 1;
if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) {
//
// Inline link
//
// [link]( <href> "title" )
// ^^ skipping these spaces
pos++;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
if (pos >= max) { return false; }
// [link]( <href> "title" )
// ^^^^^^ parsing link destination
start = pos;
res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
if (res.ok) {
href = state.md.normalizeLink(res.str);
if (state.md.validateLink(href)) {
pos = res.pos;
} else {
href = '';
}
}
// [link]( <href> "title" )
// ^^ skipping these spaces
start = pos;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
// [link]( <href> "title" )
// ^^^^^^^ parsing link title
res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
if (pos < max && start !== pos && res.ok) {
title = res.str;
pos = res.pos;
// [link]( <href> "title" )
// ^^ skipping these spaces
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
} else {
title = '';
}
if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) {
state.pos = oldPos;
return false;
}
pos++;
} else {
//
// Link reference
//
if (typeof state.env.references === 'undefined') { return false; }
if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) {
start = pos + 1;
pos = state.md.helpers.parseLinkLabel(state, pos);
if (pos >= 0) {
label = state.src.slice(start, pos++);
} else {
pos = labelEnd + 1;
}
} else {
pos = labelEnd + 1;
}
// covers label === '' and label === undefined
// (collapsed reference link and shortcut reference link respectively)
if (!label) { label = state.src.slice(labelStart, labelEnd); }
ref = state.env.references[normalizeReference(label)];
if (!ref) {
state.pos = oldPos;
return false;
}
href = ref.href;
title = ref.title;
}
//
// We found the end of the link, and know for a fact it's a valid link;
// so all that's left to do is to call tokenizer.
//
if (!silent) {
content = state.src.slice(labelStart, labelEnd);
state.md.inline.parse(
content,
state.md,
state.env,
tokens = []
);
token = state.push('image', 'img', 0);
token.attrs = attrs = [ [ 'src', href ], [ 'alt', '' ] ];
token.children = tokens;
token.content = content;
if (title) {
attrs.push([ 'title', title ]);
}
}
state.pos = pos;
state.posMax = max;
return true;
};

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// Process [link](<to> "stuff")
'use strict';
var normalizeReference = require('../common/utils').normalizeReference;
var isSpace = require('../common/utils').isSpace;
module.exports = function link(state, silent) {
var attrs,
code,
label,
labelEnd,
labelStart,
pos,
res,
ref,
title,
token,
href = '',
oldPos = state.pos,
max = state.posMax,
start = state.pos,
parseReference = true;
if (state.src.charCodeAt(state.pos) !== 0x5B/* [ */) { return false; }
labelStart = state.pos + 1;
labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, true);
// parser failed to find ']', so it's not a valid link
if (labelEnd < 0) { return false; }
pos = labelEnd + 1;
if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) {
//
// Inline link
//
// might have found a valid shortcut link, disable reference parsing
parseReference = false;
// [link]( <href> "title" )
// ^^ skipping these spaces
pos++;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
if (pos >= max) { return false; }
// [link]( <href> "title" )
// ^^^^^^ parsing link destination
start = pos;
res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
if (res.ok) {
href = "/out/?uri=" + state.md.normalizeLink(res.str);
if (state.md.validateLink(href)) {
pos = res.pos;
} else {
href = '';
}
}
// [link]( <href> "title" )
// ^^ skipping these spaces
start = pos;
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
// [link]( <href> "title" )
// ^^^^^^^ parsing link title
res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
if (pos < max && start !== pos && res.ok) {
title = res.str;
pos = res.pos;
// [link]( <href> "title" )
// ^^ skipping these spaces
for (; pos < max; pos++) {
code = state.src.charCodeAt(pos);
if (!isSpace(code) && code !== 0x0A) { break; }
}
} else {
title = '';
}
if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) {
// parsing a valid shortcut link failed, fallback to reference
parseReference = true;
}
pos++;
}
if (parseReference) {
//
// Link reference
//
if (typeof state.env.references === 'undefined') { return false; }
if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) {
start = pos + 1;
pos = state.md.helpers.parseLinkLabel(state, pos);
if (pos >= 0) {
label = state.src.slice(start, pos++);
} else {
pos = labelEnd + 1;
}
} else {
pos = labelEnd + 1;
}
// covers label === '' and label === undefined
// (collapsed reference link and shortcut reference link respectively)
if (!label) { label = state.src.slice(labelStart, labelEnd); }
ref = state.env.references[normalizeReference(label)];
if (!ref) {
state.pos = oldPos;
return false;
}
href = ref.href;
title = ref.title;
}
//
// We found the end of the link, and know for a fact it's a valid link;
// so all that's left to do is to call tokenizer.
//
if (!silent) {
state.pos = labelStart;
state.posMax = labelEnd;
token = state.push('link_open', 'a', 1);
token.attrs = attrs = [ [ 'href', href ] ];
if (title) {
attrs.push([ 'title', title ]);
}
state.md.inline.tokenize(state);
token = state.push('link_close', 'a', -1);
}
state.pos = pos;
state.posMax = max;
return true;
};

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// Proceess '\n'
'use strict';
var isSpace = require('../common/utils').isSpace;
module.exports = function newline(state, silent) {
var pmax, max, pos = state.pos;
if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; }
pmax = state.pending.length - 1;
max = state.posMax;
// ' \n' -> hardbreak
// Lookup in pending chars is bad practice! Don't copy to other rules!
// Pending string is stored in concat mode, indexed lookups will cause
// convertion to flat mode.
if (!silent) {
if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
state.pending = state.pending.replace(/ +$/, '');
state.push('hardbreak', 'br', 0);
} else {
state.pending = state.pending.slice(0, -1);
state.push('softbreak', 'br', 0);
}
} else {
state.push('softbreak', 'br', 0);
}
}
pos++;
// skip heading spaces for next line
while (pos < max && isSpace(state.src.charCodeAt(pos))) { pos++; }
state.pos = pos;
return true;
};

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// Inline parser state
'use strict';
var Token = require('../token');
var isWhiteSpace = require('../common/utils').isWhiteSpace;
var isPunctChar = require('../common/utils').isPunctChar;
var isMdAsciiPunct = require('../common/utils').isMdAsciiPunct;
function StateInline(src, md, env, outTokens) {
this.src = src;
this.env = env;
this.md = md;
this.tokens = outTokens;
this.tokens_meta = Array(outTokens.length);
this.pos = 0;
this.posMax = this.src.length;
this.level = 0;
this.pending = '';
this.pendingLevel = 0;
// Stores { start: end } pairs. Useful for backtrack
// optimization of pairs parse (emphasis, strikes).
this.cache = {};
// List of emphasis-like delimiters for current tag
this.delimiters = [];
// Stack of delimiter lists for upper level tags
this._prev_delimiters = [];
}
// Flush pending text
//
StateInline.prototype.pushPending = function () {
var token = new Token('text', '', 0);
token.content = this.pending;
token.level = this.pendingLevel;
this.tokens.push(token);
this.pending = '';
return token;
};
// Push new token to "stream".
// If pending text exists - flush it as text token
//
StateInline.prototype.push = function (type, tag, nesting) {
if (this.pending) {
this.pushPending();
}
var token = new Token(type, tag, nesting);
var token_meta = null;
if (nesting < 0) {
// closing tag
this.level--;
this.delimiters = this._prev_delimiters.pop();
}
token.level = this.level;
if (nesting > 0) {
// opening tag
this.level++;
this._prev_delimiters.push(this.delimiters);
this.delimiters = [];
token_meta = { delimiters: this.delimiters };
}
this.pendingLevel = this.level;
this.tokens.push(token);
this.tokens_meta.push(token_meta);
return token;
};
// Scan a sequence of emphasis-like markers, and determine whether
// it can start an emphasis sequence or end an emphasis sequence.
//
// - start - position to scan from (it should point at a valid marker);
// - canSplitWord - determine if these markers can be found inside a word
//
StateInline.prototype.scanDelims = function (start, canSplitWord) {
var pos = start, lastChar, nextChar, count, can_open, can_close,
isLastWhiteSpace, isLastPunctChar,
isNextWhiteSpace, isNextPunctChar,
left_flanking = true,
right_flanking = true,
max = this.posMax,
marker = this.src.charCodeAt(start);
// treat beginning of the line as a whitespace
lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 0x20;
while (pos < max && this.src.charCodeAt(pos) === marker) { pos++; }
count = pos - start;
// treat end of the line as a whitespace
nextChar = pos < max ? this.src.charCodeAt(pos) : 0x20;
isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
isLastWhiteSpace = isWhiteSpace(lastChar);
isNextWhiteSpace = isWhiteSpace(nextChar);
if (isNextWhiteSpace) {
left_flanking = false;
} else if (isNextPunctChar) {
if (!(isLastWhiteSpace || isLastPunctChar)) {
left_flanking = false;
}
}
if (isLastWhiteSpace) {
right_flanking = false;
} else if (isLastPunctChar) {
if (!(isNextWhiteSpace || isNextPunctChar)) {
right_flanking = false;
}
}
if (!canSplitWord) {
can_open = left_flanking && (!right_flanking || isLastPunctChar);
can_close = right_flanking && (!left_flanking || isNextPunctChar);
} else {
can_open = left_flanking;
can_close = right_flanking;
}
return {
can_open: can_open,
can_close: can_close,
length: count
};
};
// re-export Token class to use in block rules
StateInline.prototype.Token = Token;
module.exports = StateInline;

131
kaverti_modules/markdown-it/lib/rules_inline/strikethrough.js Normal file
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@ -0,0 +1,131 @@
// ~~strike through~~
//
'use strict';
// Insert each marker as a separate text token, and add it to delimiter list
//
module.exports.tokenize = function strikethrough(state, silent) {
var i, scanned, token, len, ch,
start = state.pos,
marker = state.src.charCodeAt(start);
if (silent) { return false; }
if (marker !== 0x7E/* ~ */) { return false; }
scanned = state.scanDelims(state.pos, true);
len = scanned.length;
ch = String.fromCharCode(marker);
if (len < 2) { return false; }
if (len % 2) {
token = state.push('text', '', 0);
token.content = ch;
len--;
}
for (i = 0; i < len; i += 2) {
token = state.push('text', '', 0);
token.content = ch + ch;
state.delimiters.push({
marker: marker,
length: 0, // disable "rule of 3" length checks meant for emphasis
jump: i,
token: state.tokens.length - 1,
end: -1,
open: scanned.can_open,
close: scanned.can_close
});
}
state.pos += scanned.length;
return true;
};
function postProcess(state, delimiters) {
var i, j,
startDelim,
endDelim,
token,
loneMarkers = [],
max = delimiters.length;
for (i = 0; i < max; i++) {
startDelim = delimiters[i];
if (startDelim.marker !== 0x7E/* ~ */) {
continue;
}
if (startDelim.end === -1) {
continue;
}
endDelim = delimiters[startDelim.end];
token = state.tokens[startDelim.token];
token.type = 's_open';
token.tag = 's';
token.nesting = 1;
token.markup = '~~';
token.content = '';
token = state.tokens[endDelim.token];
token.type = 's_close';
token.tag = 's';
token.nesting = -1;
token.markup = '~~';
token.content = '';
if (state.tokens[endDelim.token - 1].type === 'text' &&
state.tokens[endDelim.token - 1].content === '~') {
loneMarkers.push(endDelim.token - 1);
}
}
// If a marker sequence has an odd number of characters, it's splitted
// like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
// start of the sequence.
//
// So, we have to move all those markers after subsequent s_close tags.
//
while (loneMarkers.length) {
i = loneMarkers.pop();
j = i + 1;
while (j < state.tokens.length && state.tokens[j].type === 's_close') {
j++;
}
j--;
if (i !== j) {
token = state.tokens[j];
state.tokens[j] = state.tokens[i];
state.tokens[i] = token;
}
}
}
// Walk through delimiter list and replace text tokens with tags
//
module.exports.postProcess = function strikethrough(state) {
var curr,
tokens_meta = state.tokens_meta,
max = state.tokens_meta.length;
postProcess(state, state.delimiters);
for (curr = 0; curr < max; curr++) {
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
postProcess(state, tokens_meta[curr].delimiters);
}
}
};

89
kaverti_modules/markdown-it/lib/rules_inline/text.js Normal file
View File

@ -0,0 +1,89 @@
// Skip text characters for text token, place those to pending buffer
// and increment current pos
'use strict';
// Rule to skip pure text
// '{}$%@~+=:' reserved for extentions
// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
// !!!! Don't confuse with "Markdown ASCII Punctuation" chars
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
function isTerminatorChar(ch) {
switch (ch) {
case 0x0A/* \n */:
case 0x21/* ! */:
case 0x23/* # */:
case 0x24/* $ */:
case 0x25/* % */:
case 0x26/* & */:
case 0x2A/* * */:
case 0x2B/* + */:
case 0x2D/* - */:
case 0x3A/* : */:
case 0x3C/* < */:
case 0x3D/* = */:
case 0x3E/* > */:
case 0x40/* @ */:
case 0x5B/* [ */:
case 0x5C/* \ */:
case 0x5D/* ] */:
case 0x5E/* ^ */:
case 0x5F/* _ */:
case 0x60/* ` */:
case 0x7B/* { */:
case 0x7D/* } */:
case 0x7E/* ~ */:
return true;
default:
return false;
}
}
module.exports = function text(state, silent) {
var pos = state.pos;
while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
pos++;
}
if (pos === state.pos) { return false; }
if (!silent) { state.pending += state.src.slice(state.pos, pos); }
state.pos = pos;
return true;
};
// Alternative implementation, for memory.
//
// It costs 10% of performance, but allows extend terminators list, if place it
// to `ParcerInline` property. Probably, will switch to it sometime, such
// flexibility required.
/*
var TERMINATOR_RE = /[\n!#$%&*+\-:<=>@[\\\]^_`{}~]/;
module.exports = function text(state, silent) {
var pos = state.pos,
idx = state.src.slice(pos).search(TERMINATOR_RE);
// first char is terminator -> empty text
if (idx === 0) { return false; }
// no terminator -> text till end of string
if (idx < 0) {
if (!silent) { state.pending += state.src.slice(pos); }
state.pos = state.src.length;
return true;
}
if (!silent) { state.pending += state.src.slice(pos, pos + idx); }
state.pos += idx;
return true;
};*/

41
kaverti_modules/markdown-it/lib/rules_inline/text_collapse.js Normal file
View File

@ -0,0 +1,41 @@
// Clean up tokens after emphasis and strikethrough postprocessing:
// merge adjacent text nodes into one and re-calculate all token levels
//
// This is necessary because initially emphasis delimiter markers (*, _, ~)
// are treated as their own separate text tokens. Then emphasis rule either
// leaves them as text (needed to merge with adjacent text) or turns them
// into opening/closing tags (which messes up levels inside).
//
'use strict';
module.exports = function text_collapse(state) {
var curr, last,
level = 0,
tokens = state.tokens,
max = state.tokens.length;
for (curr = last = 0; curr < max; curr++) {
// re-calculate levels after emphasis/strikethrough turns some text nodes
// into opening/closing tags
if (tokens[curr].nesting < 0) level--; // closing tag
tokens[curr].level = level;
if (tokens[curr].nesting > 0) level++; // opening tag
if (tokens[curr].type === 'text' &&
curr + 1 < max &&
tokens[curr + 1].type === 'text') {
// collapse two adjacent text nodes
tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
} else {
if (curr !== last) { tokens[last] = tokens[curr]; }
last++;
}
}
if (curr !== last) {
tokens.length = last;
}
};

197
kaverti_modules/markdown-it/lib/token.js Normal file
View File

@ -0,0 +1,197 @@
// Token class
'use strict';
/**
* class Token
**/
/**
* new Token(type, tag, nesting)
*
* Create new token and fill passed properties.
**/
function Token(type, tag, nesting) {
/**
* Token#type -> String
*
* Type of the token (string, e.g. "paragraph_open")
**/
this.type = type;
/**
* Token#tag -> String
*
* html tag name, e.g. "p"
**/
this.tag = tag;
/**
* Token#attrs -> Array
*
* Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`
**/
this.attrs = null;
/**
* Token#map -> Array
*
* Source map info. Format: `[ line_begin, line_end ]`
**/
this.map = null;
/**
* Token#nesting -> Number
*
* Level change (number in {-1, 0, 1} set), where:
*
* - `1` means the tag is opening
* - `0` means the tag is self-closing
* - `-1` means the tag is closing
**/
this.nesting = nesting;
/**
* Token#level -> Number
*
* nesting level, the same as `state.level`
**/
this.level = 0;
/**
* Token#children -> Array
*
* An array of child nodes (inline and img tokens)
**/
this.children = null;
/**
* Token#content -> String
*
* In a case of self-closing tag (code, html, fence, etc.),
* it has contents of this tag.
**/
this.content = '';
/**
* Token#markup -> String
*
* '*' or '_' for emphasis, fence string for fence, etc.
**/
this.markup = '';
/**
* Token#info -> String
*
* fence infostring
**/
this.info = '';
/**
* Token#meta -> Object
*
* A place for plugins to store an arbitrary data
**/
this.meta = null;
/**
* Token#block -> Boolean
*
* True for block-level tokens, false for inline tokens.
* Used in renderer to calculate line breaks
**/
this.block = false;
/**
* Token#hidden -> Boolean
*
* If it's true, ignore this element when rendering. Used for tight lists
* to hide paragraphs.
**/
this.hidden = false;
}
/**
* Token.attrIndex(name) -> Number
*
* Search attribute index by name.
**/
Token.prototype.attrIndex = function attrIndex(name) {
var attrs, i, len;
if (!this.attrs) { return -1; }
attrs = this.attrs;
for (i = 0, len = attrs.length; i < len; i++) {
if (attrs[i][0] === name) { return i; }
}
return -1;
};
/**
* Token.attrPush(attrData)
*
* Add `[ name, value ]` attribute to list. Init attrs if necessary
**/
Token.prototype.attrPush = function attrPush(attrData) {
if (this.attrs) {
this.attrs.push(attrData);
} else {
this.attrs = [ attrData ];
}
};
/**
* Token.attrSet(name, value)
*
* Set `name` attribute to `value`. Override old value if exists.
**/
Token.prototype.attrSet = function attrSet(name, value) {
var idx = this.attrIndex(name),
attrData = [ name, value ];
if (idx < 0) {
this.attrPush(attrData);
} else {
this.attrs[idx] = attrData;
}
};
/**
* Token.attrGet(name)
*
* Get the value of attribute `name`, or null if it does not exist.
**/
Token.prototype.attrGet = function attrGet(name) {
var idx = this.attrIndex(name), value = null;
if (idx >= 0) {
value = this.attrs[idx][1];
}
return value;
};
/**
* Token.attrJoin(name, value)
*
* Join value to existing attribute via space. Or create new attribute if not
* exists. Useful to operate with token classes.
**/
Token.prototype.attrJoin = function attrJoin(name, value) {
var idx = this.attrIndex(name);
if (idx < 0) {
this.attrPush([ name, value ]);
} else {
this.attrs[idx][1] = this.attrs[idx][1] + ' ' + value;
}
};
module.exports = Token;

76
kaverti_modules/markdown-it/package.json Normal file
View File

@ -0,0 +1,76 @@
{
"name": "markdown-it",
"version": "11.0.1",
"description": "Markdown-it - modern pluggable markdown parser.",
"keywords": [
"markdown",
"parser",
"commonmark",
"markdown-it",
"markdown-it-plugin"
],
"repository": "markdown-it/markdown-it",
"license": "MIT",
"main": "index.js",
"bin": {
"markdown-it": "bin/markdown-it.js"
},
"scripts": {
"lint": "eslint .",
"test": "npm run lint && nyc mocha && node support/specsplit.js test/fixtures/commonmark/spec.txt",
"coverage": "npm run test && nyc report --reporter html",
"report-coveralls": "nyc report --reporter=text-lcov | coveralls",
"doc": "node support/build_doc.js",
"gh-doc": "npm run doc && gh-pages -d apidoc -f",
"demo": "npm run lint && node support/build_demo.js",
"gh-demo": "npm run demo && gh-pages -d demo -f -b master -r git@github.com:markdown-it/markdown-it.github.io.git",
"prepublishOnly": "npm run gh-demo && npm run gh-doc"
},
"files": [
"index.js",
"bin/",
"lib/",
"dist/"
],
"dependencies": {
"argparse": "^1.0.7",
"entities": "~2.0.0",
"linkify-it": "^3.0.1",
"mdurl": "^1.0.1",
"uc.micro": "^1.0.5"
},
"devDependencies": {
"ansi": "^0.3.0",
"autoprefixer-stylus": "^1.0.0",
"benchmark": "~2.1.0",
"browserify": "^16.3.0",
"chai": "^4.2.0",
"coveralls": "^3.0.4",
"eslint": "^7.0.0",
"express": "^4.14.0",
"gh-pages": "^3.1.0",
"highlight.js": "^10.0.3",
"markdown-it-abbr": "^1.0.4",
"markdown-it-container": "^3.0.0",
"markdown-it-deflist": "^2.0.0",
"markdown-it-emoji": "^1.1.1",
"markdown-it-footnote": "^3.0.1",
"markdown-it-for-inline": "^0.1.0",
"markdown-it-ins": "^3.0.0",
"markdown-it-mark": "^3.0.0",
"markdown-it-sub": "^1.0.0",
"markdown-it-sup": "^1.0.0",
"markdown-it-testgen": "^0.1.3",
"mocha": "^8.0.1",
"ndoc": "^5.0.0",
"nyc": "^15.0.1",
"pug-cli": "^1.0.0-alpha6",
"shelljs": "^0.8.4",
"stylus": "^0.54.5",
"supertest": "^4.0.2",
"terser": "^4.1.2"
},
"mocha": {
"inline-diffs": true
}
}

39
models/post.js
View File

@ -1,19 +1,42 @@
let marked = require('marked');
var md = require('../kaverti_modules/markdown-it')({
html: false, // Enable HTML tags in source
xhtmlOut: false, // Use '/' to close single tags (<br />).
// This is only for full CommonMark compatibility.
breaks: true, // Convert '\n' in paragraphs into <br>
langPrefix: 'language-', // CSS language prefix for fenced blocks. Can be
// useful for external highlighters.
linkify: true, // Autoconvert URL-like text to links
image: false,
// Enable some language-neutral replacement + quotes beautification
typographer: true,
// Double + single quotes replacement pairs, when typographer enabled,
// and smartquotes on. Could be either a String or an Array.
//
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
quotes: '“”‘’',
// Highlighter function. Should return escaped HTML,
// or '' if the source string is not changed and should be escaped externally.
// If result starts with <pre... internal wrapper is skipped.
highlight: function (/*str, lang*/) { return ''; }
});
md.disable('image')
let createDOMPurify = require('dompurify');
let { JSDOM } = require('jsdom');
var marked = require('marked')
let window = new JSDOM('').window;
let DOMPurify = createDOMPurify(window);
var escaped_str = require('querystring')
const Errors = require('../lib/errors')
marked.setOptions({
highlight: function (code) {
return require('highlight.js').highlightAuto(code).value;
}
});
const renderer = new marked.Renderer();
renderer.image = function (text) {
return text;
};
renderer.link = function (href, title, text) {
if (!href.match(/[a-z]+:\/\/.+/i)) {
href = 'http://' + href;
@ -39,7 +62,7 @@ module.exports = (sequelize, DataTypes) => {
})
}
let rawHTML = marked(val, { renderer });
let rawHTML = md.render(val);
let cleanHTML = DOMPurify.sanitize(rawHTML);
let plainText = (new JSDOM(cleanHTML)).window.document.body.textContent;

2
package.json
View File

@ -40,6 +40,8 @@
"lodash.debounce": "^4.0.8",
"mailgen": "^2.0.13",
"mailgun-js": "^0.22.0",
"markdown-it": "^11.0.1",
"markdown-it-link-attributes": "^3.0.0",
"marked": "^0.8.2",
"moment": "^2.28.0",
"multer": "^1.3.0",

38
yarn.lock
View File

@ -1435,6 +1435,11 @@ entities@^2.0.0:
resolved "https://npm.open-registry.dev/entities/-/entities-2.0.0.tgz#68d6084cab1b079767540d80e56a39b423e4abf4"
integrity sha512-D9f7V0JSRwIxlRI2mjMqufDrRDnx8p+eEOz7aUM9SuvF8gsBzra0/6tbjl1m8eQHrZlYj6PxqE00hZ1SAIKPLw==
entities@~2.0.0:
version "2.0.3"
resolved "https://registry.yarnpkg.com/entities/-/entities-2.0.3.tgz#5c487e5742ab93c15abb5da22759b8590ec03b7f"
integrity sha512-MyoZ0jgnLvB2X3Lg5HqpFmn1kybDiIfEQmKzTb5apr51Rb+T3KdmMiqa70T+bhGnyv7bQ6WMj2QMHpGMmlrUYQ==
error-ex@^1.2.0:
version "1.3.2"
resolved "https://npm.open-registry.dev/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
@ -2596,6 +2601,13 @@ libqp@1.1.0:
resolved "https://registry.yarnpkg.com/libqp/-/libqp-1.1.0.tgz#f5e6e06ad74b794fb5b5b66988bf728ef1dedbe8"
integrity sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g=
linkify-it@^3.0.1:
version "3.0.2"
resolved "https://registry.yarnpkg.com/linkify-it/-/linkify-it-3.0.2.tgz#f55eeb8bc1d3ae754049e124ab3bb56d97797fb8"
integrity sha512-gDBO4aHNZS6coiZCKVhSNh43F9ioIL4JwRjLZPkoLIY4yZFwg264Y5lu2x6rb1Js42Gh6Yqm2f6L2AJcnkzinQ==
dependencies:
uc.micro "^1.0.1"
load-json-file@^2.0.0:
version "2.0.0"
resolved "https://npm.open-registry.dev/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
@ -2782,11 +2794,32 @@ mailparser@^0.6.1:
mimelib "^0.3.0"
uue "^3.1.0"
markdown-it-link-attributes@^3.0.0:
version "3.0.0"
resolved "https://registry.yarnpkg.com/markdown-it-link-attributes/-/markdown-it-link-attributes-3.0.0.tgz#12d6f403102ac22695ee2617bec109ee79426e45"
integrity sha512-B34ySxVeo6MuEGSPCWyIYryuXINOvngNZL87Mp7YYfKIf6DcD837+lXA8mo6EBbauKsnGz22ZH0zsbOiQRWTNg==
markdown-it@^11.0.1:
version "11.0.1"
resolved "https://registry.yarnpkg.com/markdown-it/-/markdown-it-11.0.1.tgz#b54f15ec2a2193efa66dda1eb4173baea08993d6"
integrity sha512-aU1TzmBKcWNNYvH9pjq6u92BML+Hz3h5S/QpfTFwiQF852pLT+9qHsrhM9JYipkOXZxGn+sGH8oyJE9FD9WezQ==
dependencies:
argparse "^1.0.7"
entities "~2.0.0"
linkify-it "^3.0.1"
mdurl "^1.0.1"
uc.micro "^1.0.5"
marked@^0.8.2:
version "0.8.2"
resolved "https://npm.open-registry.dev/marked/-/marked-0.8.2.tgz#4faad28d26ede351a7a1aaa5fec67915c869e355"
integrity sha512-EGwzEeCcLniFX51DhTpmTom+dSA/MG/OBUDjnWtHbEnjAH180VzUeAw+oE4+Zv+CoYBWyRlYOTR0N8SO9R1PVw==
mdurl@^1.0.1:
version "1.0.1"
resolved "https://registry.yarnpkg.com/mdurl/-/mdurl-1.0.1.tgz#fe85b2ec75a59037f2adfec100fd6c601761152e"
integrity sha1-/oWy7HWlkDfyrf7BAP1sYBdhFS4=
media-typer@0.3.0:
version "0.3.0"
resolved "https://npm.open-registry.dev/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
@ -4756,6 +4789,11 @@ typedarray@^0.0.6:
resolved "https://npm.open-registry.dev/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
uc.micro@^1.0.1, uc.micro@^1.0.5:
version "1.0.6"
resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.6.tgz#9c411a802a409a91fc6cf74081baba34b24499ac"
integrity sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==
uid-safe@2.1.5, uid-safe@~2.1.5:
version "2.1.5"
resolved "https://npm.open-registry.dev/uid-safe/-/uid-safe-2.1.5.tgz#2b3d5c7240e8fc2e58f8aa269e5ee49c0857bd3a"