node_modules ignore

server/node_modules/markdown-it-footnote/CHANGELOG.md

@@ -0,0 +1,43 @@
+3.0.3 / 2021-05-20
+------------------
+
+- Fix crash on nested footnotes, #42.
+
+
+3.0.2 / 2019-07-09
+------------------
+
+- Fix URLs in inline footnotes, #33.
+
+
+3.0.1 / 2016-08-05
+------------------
+
+- Fix anchor links in duplicate footnotes, #13.
+
+
+3.0.0 / 2016-06-28
+------------------
+
+- Add `env.docId` support to guarantee unique ancors for differenet docements.
+- Add overridable helpers: `md.renderer.rules.footnote_anchor_name`
+  & `md.renderer.rules.footnote_caption` to simplify templating.
+- Fixed anchor symbol display on iOS, #11.
+
+
+2.0.0 / 2015-10-05
+------------------
+
+- Markdown-it 5.0.0 support. Use 1.x version for 4.x.
+
+
+1.0.0 / 2015-03-12
+------------------
+
+- Markdown-it 4.0.0 support. Use previous version for 2.x-3.x.
+
+
+0.1.0 / 2015-01-04
+------------------
+
+- First release.

server/node_modules/markdown-it-footnote/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2014-2015 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.

server/node_modules/markdown-it-footnote/README.md

@@ -0,0 +1,117 @@
+# markdown-it-footnote
+
+[![Build Status](https://img.shields.io/travis/markdown-it/markdown-it-footnote/master.svg?style=flat)](https://travis-ci.org/markdown-it/markdown-it-footnote)
+[![NPM version](https://img.shields.io/npm/v/markdown-it-footnote.svg?style=flat)](https://www.npmjs.org/package/markdown-it-footnote)
+[![Coverage Status](https://img.shields.io/coveralls/markdown-it/markdown-it-footnote/master.svg?style=flat)](https://coveralls.io/r/markdown-it/markdown-it-footnote?branch=master)
+
+> Footnotes plugin for [markdown-it](https://github.com/markdown-it/markdown-it) markdown parser.
+
+__v2.+ requires `markdown-it` v5.+, see changelog.__
+
+Markup is based on [pandoc](http://johnmacfarlane.net/pandoc/README.html#footnotes) definition.
+
+__Normal footnote__:
+
+```
+Here is a footnote reference,[^1] and another.[^longnote]
+
+[^1]: Here is the footnote.
+
+[^longnote]: Here's one with multiple blocks.
+
+    Subsequent paragraphs are indented to show that they
+belong to the previous footnote.
+```
+
+html:
+
+```html
+<p>Here is a footnote reference,<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup> and another.<sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup></p>
+<p>This paragraph won’t be part of the note, because it
+isn’t indented.</p>
+<hr class="footnotes-sep">
+<section class="footnotes">
+<ol class="footnotes-list">
+<li id="fn1"  class="footnote-item"><p>Here is the footnote. <a href="#fnref1" class="footnote-backref">↩</a></p>
+</li>
+<li id="fn2"  class="footnote-item"><p>Here’s one with multiple blocks.</p>
+<p>Subsequent paragraphs are indented to show that they
+belong to the previous footnote. <a href="#fnref2" class="footnote-backref">↩</a></p>
+</li>
+</ol>
+</section>
+```
+
+__Inline footnote__:
+
+```
+Here is an inline note.^[Inlines notes are easier to write, since
+you don't have to pick an identifier and move down to type the
+note.]
+```
+
+html:
+
+```html
+<p>Here is an inline note.<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup></p>
+<hr class="footnotes-sep">
+<section class="footnotes">
+<ol class="footnotes-list">
+<li id="fn1"  class="footnote-item"><p>Inlines notes are easier to write, since
+you don’t have to pick an identifier and move down to type the
+note. <a href="#fnref1" class="footnote-backref">↩</a></p>
+</li>
+</ol>
+</section>
+```
+
+
+## Install
+
+node.js, browser:
+
+```bash
+npm install markdown-it-footnote --save
+bower install markdown-it-footnote --save
+```
+
+## Use
+
+```js
+var md = require('markdown-it')()
+            .use(require('markdown-it-footnote'));
+
+md.render(/*...*/) // See examples above
+```
+
+_Differences in browser._ If you load script directly into the page, without
+package system, module will add itself globally as `window.markdownitFootnote`.
+
+
+### Customize
+
+If you want to customize the output, you'll need to replace the template
+functions. To see which templates exist and their default implementations,
+look in [`index.js`](index.js). The API of these template functions is out of
+scope for this plugin's documentation; you can read more about it [in the
+markdown-it
+documentation](https://github.com/markdown-it/markdown-it/blob/master/docs/architecture.md#renderer).
+
+To demonstrate with an example, here is how you might replace the `<hr>` that
+this plugin emits by default with an `<h4>` emitted by your own template
+function override:
+
+```js
+const md = require('markdown-it')().use(require('markdown-it-footnote'));
+
+md.renderer.rules.footnote_block_open = () => (
+  '<h4 class="mt-3">Footnotes</h4>\n' +
+  '<section class="footnotes">\n' +
+  '<ol class="footnotes-list">\n'
+);
+```
+
+
+## License
+
+[MIT](https://github.com/markdown-it/markdown-it-footnote/blob/master/LICENSE)

server/node_modules/markdown-it-footnote/bower.json

@@ -0,0 +1,27 @@
+{
+  "name": "markdown-it-footnote",
+  "main": "dist/markdown-it-footnote.js",
+  "homepage": "https://github.com/markdown-it/markdown-it-footnote",
+  "description": "Footnotes for markdown-it markdown parser.",
+  "keywords": [
+    "markdown-it-plugin",
+    "markdown-it",
+    "markdown",
+    "footnotes"
+  ],
+  "license": "MIT",
+  "ignore": [
+    "**/.*",
+    "benchmark",
+    "bower_components",
+    "coverage",
+    "demo",
+    "docs",
+    "lib",
+    "node_modules",
+    "support",
+    "test",
+    "Makefile",
+    "index*"
+  ]
+}

server/node_modules/markdown-it-footnote/dist/markdown-it-footnote.js

@@ -0,0 +1,371 @@
+/*! markdown-it-footnote 3.0.3 https://github.com//markdown-it/markdown-it-footnote @license MIT */(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.markdownitFootnote = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+// Process footnotes
+//
+'use strict';
+
+////////////////////////////////////////////////////////////////////////////////
+// Renderer partials
+
+function render_footnote_anchor_name(tokens, idx, options, env/*, slf*/) {
+  var n = Number(tokens[idx].meta.id + 1).toString();
+  var prefix = '';
+
+  if (typeof env.docId === 'string') {
+    prefix = '-' + env.docId + '-';
+  }
+
+  return prefix + n;
+}
+
+function render_footnote_caption(tokens, idx/*, options, env, slf*/) {
+  var n = Number(tokens[idx].meta.id + 1).toString();
+
+  if (tokens[idx].meta.subId > 0) {
+    n += ':' + tokens[idx].meta.subId;
+  }
+
+  return '[' + n + ']';
+}
+
+function render_footnote_ref(tokens, idx, options, env, slf) {
+  var id      = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+  var caption = slf.rules.footnote_caption(tokens, idx, options, env, slf);
+  var refid   = id;
+
+  if (tokens[idx].meta.subId > 0) {
+    refid += ':' + tokens[idx].meta.subId;
+  }
+
+  return '<sup class="footnote-ref"><a href="#fn' + id + '" id="fnref' + refid + '">' + caption + '</a></sup>';
+}
+
+function render_footnote_block_open(tokens, idx, options) {
+  return (options.xhtmlOut ? '<hr class="footnotes-sep" />\n' : '<hr class="footnotes-sep">\n') +
+         '<section class="footnotes">\n' +
+         '<ol class="footnotes-list">\n';
+}
+
+function render_footnote_block_close() {
+  return '</ol>\n</section>\n';
+}
+
+function render_footnote_open(tokens, idx, options, env, slf) {
+  var id = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+
+  if (tokens[idx].meta.subId > 0) {
+    id += ':' + tokens[idx].meta.subId;
+  }
+
+  return '<li id="fn' + id + '" class="footnote-item">';
+}
+
+function render_footnote_close() {
+  return '</li>\n';
+}
+
+function render_footnote_anchor(tokens, idx, options, env, slf) {
+  var id = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+
+  if (tokens[idx].meta.subId > 0) {
+    id += ':' + tokens[idx].meta.subId;
+  }
+
+  /* ↩ with escape code to prevent display as Apple Emoji on iOS */
+  return ' <a href="#fnref' + id + '" class="footnote-backref">\u21a9\uFE0E</a>';
+}
+
+
+module.exports = function footnote_plugin(md) {
+  var parseLinkLabel = md.helpers.parseLinkLabel,
+      isSpace = md.utils.isSpace;
+
+  md.renderer.rules.footnote_ref          = render_footnote_ref;
+  md.renderer.rules.footnote_block_open   = render_footnote_block_open;
+  md.renderer.rules.footnote_block_close  = render_footnote_block_close;
+  md.renderer.rules.footnote_open         = render_footnote_open;
+  md.renderer.rules.footnote_close        = render_footnote_close;
+  md.renderer.rules.footnote_anchor       = render_footnote_anchor;
+
+  // helpers (only used in other rules, no tokens are attached to those)
+  md.renderer.rules.footnote_caption      = render_footnote_caption;
+  md.renderer.rules.footnote_anchor_name  = render_footnote_anchor_name;
+
+  // Process footnote block definition
+  function footnote_def(state, startLine, endLine, silent) {
+    var oldBMark, oldTShift, oldSCount, oldParentType, pos, label, token,
+        initial, offset, ch, posAfterColon,
+        start = state.bMarks[startLine] + state.tShift[startLine],
+        max = state.eMarks[startLine];
+
+    // line should be at least 5 chars - "[^x]:"
+    if (start + 4 > max) { return false; }
+
+    if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
+
+    for (pos = start + 2; pos < max; pos++) {
+      if (state.src.charCodeAt(pos) === 0x20) { return false; }
+      if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+        break;
+      }
+    }
+
+    if (pos === start + 2) { return false; } // no empty footnote labels
+    if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; }
+    if (silent) { return true; }
+    pos++;
+
+    if (!state.env.footnotes) { state.env.footnotes = {}; }
+    if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; }
+    label = state.src.slice(start + 2, pos - 2);
+    state.env.footnotes.refs[':' + label] = -1;
+
+    token       = new state.Token('footnote_reference_open', '', 1);
+    token.meta  = { label: label };
+    token.level = state.level++;
+    state.tokens.push(token);
+
+    oldBMark = state.bMarks[startLine];
+    oldTShift = state.tShift[startLine];
+    oldSCount = state.sCount[startLine];
+    oldParentType = state.parentType;
+
+    posAfterColon = pos;
+    initial = offset = state.sCount[startLine] + pos - (state.bMarks[startLine] + state.tShift[startLine]);
+
+    while (pos < max) {
+      ch = state.src.charCodeAt(pos);
+
+      if (isSpace(ch)) {
+        if (ch === 0x09) {
+          offset += 4 - offset % 4;
+        } else {
+          offset++;
+        }
+      } else {
+        break;
+      }
+
+      pos++;
+    }
+
+    state.tShift[startLine] = pos - posAfterColon;
+    state.sCount[startLine] = offset - initial;
+
+    state.bMarks[startLine] = posAfterColon;
+    state.blkIndent += 4;
+    state.parentType = 'footnote';
+
+    if (state.sCount[startLine] < state.blkIndent) {
+      state.sCount[startLine] += state.blkIndent;
+    }
+
+    state.md.block.tokenize(state, startLine, endLine, true);
+
+    state.parentType = oldParentType;
+    state.blkIndent -= 4;
+    state.tShift[startLine] = oldTShift;
+    state.sCount[startLine] = oldSCount;
+    state.bMarks[startLine] = oldBMark;
+
+    token       = new state.Token('footnote_reference_close', '', -1);
+    token.level = --state.level;
+    state.tokens.push(token);
+
+    return true;
+  }
+
+  // Process inline footnotes (^[...])
+  function footnote_inline(state, silent) {
+    var labelStart,
+        labelEnd,
+        footnoteId,
+        token,
+        tokens,
+        max = state.posMax,
+        start = state.pos;
+
+    if (start + 2 >= max) { return false; }
+    if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) { return false; }
+
+    labelStart = start + 2;
+    labelEnd = parseLinkLabel(state, start + 1);
+
+    // parser failed to find ']', so it's not a valid note
+    if (labelEnd < 0) { return false; }
+
+    // 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) {
+      if (!state.env.footnotes) { state.env.footnotes = {}; }
+      if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
+      footnoteId = state.env.footnotes.list.length;
+
+      state.md.inline.parse(
+        state.src.slice(labelStart, labelEnd),
+        state.md,
+        state.env,
+        tokens = []
+      );
+
+      token      = state.push('footnote_ref', '', 0);
+      token.meta = { id: footnoteId };
+
+      state.env.footnotes.list[footnoteId] = {
+        content: state.src.slice(labelStart, labelEnd),
+        tokens: tokens
+      };
+    }
+
+    state.pos = labelEnd + 1;
+    state.posMax = max;
+    return true;
+  }
+
+  // Process footnote references ([^...])
+  function footnote_ref(state, silent) {
+    var label,
+        pos,
+        footnoteId,
+        footnoteSubId,
+        token,
+        max = state.posMax,
+        start = state.pos;
+
+    // should be at least 4 chars - "[^x]"
+    if (start + 3 > max) { return false; }
+
+    if (!state.env.footnotes || !state.env.footnotes.refs) { return false; }
+    if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
+
+    for (pos = start + 2; pos < max; pos++) {
+      if (state.src.charCodeAt(pos) === 0x20) { return false; }
+      if (state.src.charCodeAt(pos) === 0x0A) { return false; }
+      if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+        break;
+      }
+    }
+
+    if (pos === start + 2) { return false; } // no empty footnote labels
+    if (pos >= max) { return false; }
+    pos++;
+
+    label = state.src.slice(start + 2, pos - 1);
+    if (typeof state.env.footnotes.refs[':' + label] === 'undefined') { return false; }
+
+    if (!silent) {
+      if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
+
+      if (state.env.footnotes.refs[':' + label] < 0) {
+        footnoteId = state.env.footnotes.list.length;
+        state.env.footnotes.list[footnoteId] = { label: label, count: 0 };
+        state.env.footnotes.refs[':' + label] = footnoteId;
+      } else {
+        footnoteId = state.env.footnotes.refs[':' + label];
+      }
+
+      footnoteSubId = state.env.footnotes.list[footnoteId].count;
+      state.env.footnotes.list[footnoteId].count++;
+
+      token      = state.push('footnote_ref', '', 0);
+      token.meta = { id: footnoteId, subId: footnoteSubId, label: label };
+    }
+
+    state.pos = pos;
+    state.posMax = max;
+    return true;
+  }
+
+  // Glue footnote tokens to end of token stream
+  function footnote_tail(state) {
+    var i, l, j, t, lastParagraph, list, token, tokens, current, currentLabel,
+        insideRef = false,
+        refTokens = {};
+
+    if (!state.env.footnotes) { return; }
+
+    state.tokens = state.tokens.filter(function (tok) {
+      if (tok.type === 'footnote_reference_open') {
+        insideRef = true;
+        current = [];
+        currentLabel = tok.meta.label;
+        return false;
+      }
+      if (tok.type === 'footnote_reference_close') {
+        insideRef = false;
+        // prepend ':' to avoid conflict with Object.prototype members
+        refTokens[':' + currentLabel] = current;
+        return false;
+      }
+      if (insideRef) { current.push(tok); }
+      return !insideRef;
+    });
+
+    if (!state.env.footnotes.list) { return; }
+    list = state.env.footnotes.list;
+
+    token = new state.Token('footnote_block_open', '', 1);
+    state.tokens.push(token);
+
+    for (i = 0, l = list.length; i < l; i++) {
+      token      = new state.Token('footnote_open', '', 1);
+      token.meta = { id: i, label: list[i].label };
+      state.tokens.push(token);
+
+      if (list[i].tokens) {
+        tokens = [];
+
+        token          = new state.Token('paragraph_open', 'p', 1);
+        token.block    = true;
+        tokens.push(token);
+
+        token          = new state.Token('inline', '', 0);
+        token.children = list[i].tokens;
+        token.content  = list[i].content;
+        tokens.push(token);
+
+        token          = new state.Token('paragraph_close', 'p', -1);
+        token.block    = true;
+        tokens.push(token);
+
+      } else if (list[i].label) {
+        tokens = refTokens[':' + list[i].label];
+      }
+
+      if (tokens) state.tokens = state.tokens.concat(tokens);
+      if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') {
+        lastParagraph = state.tokens.pop();
+      } else {
+        lastParagraph = null;
+      }
+
+      t = list[i].count > 0 ? list[i].count : 1;
+      for (j = 0; j < t; j++) {
+        token      = new state.Token('footnote_anchor', '', 0);
+        token.meta = { id: i, subId: j, label: list[i].label };
+        state.tokens.push(token);
+      }
+
+      if (lastParagraph) {
+        state.tokens.push(lastParagraph);
+      }
+
+      token = new state.Token('footnote_close', '', -1);
+      state.tokens.push(token);
+    }
+
+    token = new state.Token('footnote_block_close', '', -1);
+    state.tokens.push(token);
+  }
+
+  md.block.ruler.before('reference', 'footnote_def', footnote_def, { alt: [ 'paragraph', 'reference' ] });
+  md.inline.ruler.after('image', 'footnote_inline', footnote_inline);
+  md.inline.ruler.after('footnote_inline', 'footnote_ref', footnote_ref);
+  md.core.ruler.after('inline', 'footnote_tail', footnote_tail);
+};
+
+},{}]},{},[1])(1)
+});

server/node_modules/markdown-it-footnote/index.js

@@ -0,0 +1,367 @@
+// Process footnotes
+//
+'use strict';
+
+////////////////////////////////////////////////////////////////////////////////
+// Renderer partials
+
+function render_footnote_anchor_name(tokens, idx, options, env/*, slf*/) {
+  var n = Number(tokens[idx].meta.id + 1).toString();
+  var prefix = '';
+
+  if (typeof env.docId === 'string') {
+    prefix = '-' + env.docId + '-';
+  }
+
+  return prefix + n;
+}
+
+function render_footnote_caption(tokens, idx/*, options, env, slf*/) {
+  var n = Number(tokens[idx].meta.id + 1).toString();
+
+  if (tokens[idx].meta.subId > 0) {
+    n += ':' + tokens[idx].meta.subId;
+  }
+
+  return '[' + n + ']';
+}
+
+function render_footnote_ref(tokens, idx, options, env, slf) {
+  var id      = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+  var caption = slf.rules.footnote_caption(tokens, idx, options, env, slf);
+  var refid   = id;
+
+  if (tokens[idx].meta.subId > 0) {
+    refid += ':' + tokens[idx].meta.subId;
+  }
+
+  return '<sup class="footnote-ref"><a href="#fn' + id + '" id="fnref' + refid + '">' + caption + '</a></sup>';
+}
+
+function render_footnote_block_open(tokens, idx, options) {
+  return (options.xhtmlOut ? '<hr class="footnotes-sep" />\n' : '<hr class="footnotes-sep">\n') +
+         '<section class="footnotes">\n' +
+         '<ol class="footnotes-list">\n';
+}
+
+function render_footnote_block_close() {
+  return '</ol>\n</section>\n';
+}
+
+function render_footnote_open(tokens, idx, options, env, slf) {
+  var id = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+
+  if (tokens[idx].meta.subId > 0) {
+    id += ':' + tokens[idx].meta.subId;
+  }
+
+  return '<li id="fn' + id + '" class="footnote-item">';
+}
+
+function render_footnote_close() {
+  return '</li>\n';
+}
+
+function render_footnote_anchor(tokens, idx, options, env, slf) {
+  var id = slf.rules.footnote_anchor_name(tokens, idx, options, env, slf);
+
+  if (tokens[idx].meta.subId > 0) {
+    id += ':' + tokens[idx].meta.subId;
+  }
+
+  /* ↩ with escape code to prevent display as Apple Emoji on iOS */
+  return ' <a href="#fnref' + id + '" class="footnote-backref">\u21a9\uFE0E</a>';
+}
+
+
+module.exports = function footnote_plugin(md) {
+  var parseLinkLabel = md.helpers.parseLinkLabel,
+      isSpace = md.utils.isSpace;
+
+  md.renderer.rules.footnote_ref          = render_footnote_ref;
+  md.renderer.rules.footnote_block_open   = render_footnote_block_open;
+  md.renderer.rules.footnote_block_close  = render_footnote_block_close;
+  md.renderer.rules.footnote_open         = render_footnote_open;
+  md.renderer.rules.footnote_close        = render_footnote_close;
+  md.renderer.rules.footnote_anchor       = render_footnote_anchor;
+
+  // helpers (only used in other rules, no tokens are attached to those)
+  md.renderer.rules.footnote_caption      = render_footnote_caption;
+  md.renderer.rules.footnote_anchor_name  = render_footnote_anchor_name;
+
+  // Process footnote block definition
+  function footnote_def(state, startLine, endLine, silent) {
+    var oldBMark, oldTShift, oldSCount, oldParentType, pos, label, token,
+        initial, offset, ch, posAfterColon,
+        start = state.bMarks[startLine] + state.tShift[startLine],
+        max = state.eMarks[startLine];
+
+    // line should be at least 5 chars - "[^x]:"
+    if (start + 4 > max) { return false; }
+
+    if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
+
+    for (pos = start + 2; pos < max; pos++) {
+      if (state.src.charCodeAt(pos) === 0x20) { return false; }
+      if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+        break;
+      }
+    }
+
+    if (pos === start + 2) { return false; } // no empty footnote labels
+    if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; }
+    if (silent) { return true; }
+    pos++;
+
+    if (!state.env.footnotes) { state.env.footnotes = {}; }
+    if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; }
+    label = state.src.slice(start + 2, pos - 2);
+    state.env.footnotes.refs[':' + label] = -1;
+
+    token       = new state.Token('footnote_reference_open', '', 1);
+    token.meta  = { label: label };
+    token.level = state.level++;
+    state.tokens.push(token);
+
+    oldBMark = state.bMarks[startLine];
+    oldTShift = state.tShift[startLine];
+    oldSCount = state.sCount[startLine];
+    oldParentType = state.parentType;
+
+    posAfterColon = pos;
+    initial = offset = state.sCount[startLine] + pos - (state.bMarks[startLine] + state.tShift[startLine]);
+
+    while (pos < max) {
+      ch = state.src.charCodeAt(pos);
+
+      if (isSpace(ch)) {
+        if (ch === 0x09) {
+          offset += 4 - offset % 4;
+        } else {
+          offset++;
+        }
+      } else {
+        break;
+      }
+
+      pos++;
+    }
+
+    state.tShift[startLine] = pos - posAfterColon;
+    state.sCount[startLine] = offset - initial;
+
+    state.bMarks[startLine] = posAfterColon;
+    state.blkIndent += 4;
+    state.parentType = 'footnote';
+
+    if (state.sCount[startLine] < state.blkIndent) {
+      state.sCount[startLine] += state.blkIndent;
+    }
+
+    state.md.block.tokenize(state, startLine, endLine, true);
+
+    state.parentType = oldParentType;
+    state.blkIndent -= 4;
+    state.tShift[startLine] = oldTShift;
+    state.sCount[startLine] = oldSCount;
+    state.bMarks[startLine] = oldBMark;
+
+    token       = new state.Token('footnote_reference_close', '', -1);
+    token.level = --state.level;
+    state.tokens.push(token);
+
+    return true;
+  }
+
+  // Process inline footnotes (^[...])
+  function footnote_inline(state, silent) {
+    var labelStart,
+        labelEnd,
+        footnoteId,
+        token,
+        tokens,
+        max = state.posMax,
+        start = state.pos;
+
+    if (start + 2 >= max) { return false; }
+    if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) { return false; }
+
+    labelStart = start + 2;
+    labelEnd = parseLinkLabel(state, start + 1);
+
+    // parser failed to find ']', so it's not a valid note
+    if (labelEnd < 0) { return false; }
+
+    // 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) {
+      if (!state.env.footnotes) { state.env.footnotes = {}; }
+      if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
+      footnoteId = state.env.footnotes.list.length;
+
+      state.md.inline.parse(
+        state.src.slice(labelStart, labelEnd),
+        state.md,
+        state.env,
+        tokens = []
+      );
+
+      token      = state.push('footnote_ref', '', 0);
+      token.meta = { id: footnoteId };
+
+      state.env.footnotes.list[footnoteId] = {
+        content: state.src.slice(labelStart, labelEnd),
+        tokens: tokens
+      };
+    }
+
+    state.pos = labelEnd + 1;
+    state.posMax = max;
+    return true;
+  }
+
+  // Process footnote references ([^...])
+  function footnote_ref(state, silent) {
+    var label,
+        pos,
+        footnoteId,
+        footnoteSubId,
+        token,
+        max = state.posMax,
+        start = state.pos;
+
+    // should be at least 4 chars - "[^x]"
+    if (start + 3 > max) { return false; }
+
+    if (!state.env.footnotes || !state.env.footnotes.refs) { return false; }
+    if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; }
+    if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; }
+
+    for (pos = start + 2; pos < max; pos++) {
+      if (state.src.charCodeAt(pos) === 0x20) { return false; }
+      if (state.src.charCodeAt(pos) === 0x0A) { return false; }
+      if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+        break;
+      }
+    }
+
+    if (pos === start + 2) { return false; } // no empty footnote labels
+    if (pos >= max) { return false; }
+    pos++;
+
+    label = state.src.slice(start + 2, pos - 1);
+    if (typeof state.env.footnotes.refs[':' + label] === 'undefined') { return false; }
+
+    if (!silent) {
+      if (!state.env.footnotes.list) { state.env.footnotes.list = []; }
+
+      if (state.env.footnotes.refs[':' + label] < 0) {
+        footnoteId = state.env.footnotes.list.length;
+        state.env.footnotes.list[footnoteId] = { label: label, count: 0 };
+        state.env.footnotes.refs[':' + label] = footnoteId;
+      } else {
+        footnoteId = state.env.footnotes.refs[':' + label];
+      }
+
+      footnoteSubId = state.env.footnotes.list[footnoteId].count;
+      state.env.footnotes.list[footnoteId].count++;
+
+      token      = state.push('footnote_ref', '', 0);
+      token.meta = { id: footnoteId, subId: footnoteSubId, label: label };
+    }
+
+    state.pos = pos;
+    state.posMax = max;
+    return true;
+  }
+
+  // Glue footnote tokens to end of token stream
+  function footnote_tail(state) {
+    var i, l, j, t, lastParagraph, list, token, tokens, current, currentLabel,
+        insideRef = false,
+        refTokens = {};
+
+    if (!state.env.footnotes) { return; }
+
+    state.tokens = state.tokens.filter(function (tok) {
+      if (tok.type === 'footnote_reference_open') {
+        insideRef = true;
+        current = [];
+        currentLabel = tok.meta.label;
+        return false;
+      }
+      if (tok.type === 'footnote_reference_close') {
+        insideRef = false;
+        // prepend ':' to avoid conflict with Object.prototype members
+        refTokens[':' + currentLabel] = current;
+        return false;
+      }
+      if (insideRef) { current.push(tok); }
+      return !insideRef;
+    });
+
+    if (!state.env.footnotes.list) { return; }
+    list = state.env.footnotes.list;
+
+    token = new state.Token('footnote_block_open', '', 1);
+    state.tokens.push(token);
+
+    for (i = 0, l = list.length; i < l; i++) {
+      token      = new state.Token('footnote_open', '', 1);
+      token.meta = { id: i, label: list[i].label };
+      state.tokens.push(token);
+
+      if (list[i].tokens) {
+        tokens = [];
+
+        token          = new state.Token('paragraph_open', 'p', 1);
+        token.block    = true;
+        tokens.push(token);
+
+        token          = new state.Token('inline', '', 0);
+        token.children = list[i].tokens;
+        token.content  = list[i].content;
+        tokens.push(token);
+
+        token          = new state.Token('paragraph_close', 'p', -1);
+        token.block    = true;
+        tokens.push(token);
+
+      } else if (list[i].label) {
+        tokens = refTokens[':' + list[i].label];
+      }
+
+      if (tokens) state.tokens = state.tokens.concat(tokens);
+      if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') {
+        lastParagraph = state.tokens.pop();
+      } else {
+        lastParagraph = null;
+      }
+
+      t = list[i].count > 0 ? list[i].count : 1;
+      for (j = 0; j < t; j++) {
+        token      = new state.Token('footnote_anchor', '', 0);
+        token.meta = { id: i, subId: j, label: list[i].label };
+        state.tokens.push(token);
+      }
+
+      if (lastParagraph) {
+        state.tokens.push(lastParagraph);
+      }
+
+      token = new state.Token('footnote_close', '', -1);
+      state.tokens.push(token);
+    }
+
+    token = new state.Token('footnote_block_close', '', -1);
+    state.tokens.push(token);
+  }
+
+  md.block.ruler.before('reference', 'footnote_def', footnote_def, { alt: [ 'paragraph', 'reference' ] });
+  md.inline.ruler.after('image', 'footnote_inline', footnote_inline);
+  md.inline.ruler.after('footnote_inline', 'footnote_ref', footnote_ref);
+  md.core.ruler.after('inline', 'footnote_tail', footnote_tail);
+};

server/node_modules/markdown-it-footnote/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "markdown-it-footnote",
+  "version": "3.0.3",
+  "description": "Footnotes for markdown-it markdown parser.",
+  "keywords": [
+    "markdown-it-plugin",
+    "markdown-it",
+    "markdown",
+    "footnotes"
+  ],
+  "repository": "markdown-it/markdown-it-footnote",
+  "license": "MIT",
+  "scripts": {
+    "test": "make test"
+  },
+  "devDependencies": {
+    "browserify": "^16.2.3",
+    "coveralls": "^3.0.2",
+    "eslint": "^5.9.0",
+    "istanbul": "^0.4.5",
+    "markdown-it": "markdown-it/markdown-it",
+    "markdown-it-testgen": "~0.1.0",
+    "mocha": "^5.2.0",
+    "terser": "^3.17.0"
+  }
+}