+++ /dev/null
-'use strict';
-
-var whitespace = require('is-whitespace-character');
-var locate = require('../locate/link');
-
-module.exports = link;
-link.locator = locate;
-
-var own = {}.hasOwnProperty;
-
-var C_BACKSLASH = '\\';
-var C_BRACKET_OPEN = '[';
-var C_BRACKET_CLOSE = ']';
-var C_PAREN_OPEN = '(';
-var C_PAREN_CLOSE = ')';
-var C_LT = '<';
-var C_GT = '>';
-var C_TICK = '`';
-var C_DOUBLE_QUOTE = '"';
-var C_SINGLE_QUOTE = '\'';
-
-/* Map of characters, which can be used to mark link
- * and image titles. */
-var LINK_MARKERS = {};
-
-LINK_MARKERS[C_DOUBLE_QUOTE] = C_DOUBLE_QUOTE;
-LINK_MARKERS[C_SINGLE_QUOTE] = C_SINGLE_QUOTE;
-
-/* Map of characters, which can be used to mark link
- * and image titles in commonmark-mode. */
-var COMMONMARK_LINK_MARKERS = {};
-
-COMMONMARK_LINK_MARKERS[C_DOUBLE_QUOTE] = C_DOUBLE_QUOTE;
-COMMONMARK_LINK_MARKERS[C_SINGLE_QUOTE] = C_SINGLE_QUOTE;
-COMMONMARK_LINK_MARKERS[C_PAREN_OPEN] = C_PAREN_CLOSE;
-
-function link(eat, value, silent) {
- var self = this;
- var subvalue = '';
- var index = 0;
- var character = value.charAt(0);
- var pedantic = self.options.pedantic;
- var commonmark = self.options.commonmark;
- var gfm = self.options.gfm;
- var closed;
- var count;
- var opening;
- var beforeURL;
- var beforeTitle;
- var subqueue;
- var hasMarker;
- var markers;
- var isImage;
- var content;
- var marker;
- var length;
- var title;
- var depth;
- var queue;
- var url;
- var now;
- var exit;
- var node;
-
- /* Detect whether this is an image. */
- if (character === '!') {
- isImage = true;
- subvalue = character;
- character = value.charAt(++index);
- }
-
- /* Eat the opening. */
- if (character !== C_BRACKET_OPEN) {
- return;
- }
-
- /* Exit when this is a link and we’re already inside
- * a link. */
- if (!isImage && self.inLink) {
- return;
- }
-
- subvalue += character;
- queue = '';
- index++;
-
- /* Eat the content. */
- length = value.length;
- now = eat.now();
- depth = 0;
-
- now.column += index;
- now.offset += index;
-
- while (index < length) {
- character = value.charAt(index);
- subqueue = character;
-
- if (character === C_TICK) {
- /* Inline-code in link content. */
- count = 1;
-
- while (value.charAt(index + 1) === C_TICK) {
- subqueue += character;
- index++;
- count++;
- }
-
- if (!opening) {
- opening = count;
- } else if (count >= opening) {
- opening = 0;
- }
- } else if (character === C_BACKSLASH) {
- /* Allow brackets to be escaped. */
- index++;
- subqueue += value.charAt(index);
- /* In GFM mode, brackets in code still count.
- * In all other modes, they don’t. This empty
- * block prevents the next statements are
- * entered. */
- } else if ((!opening || gfm) && character === C_BRACKET_OPEN) {
- depth++;
- } else if ((!opening || gfm) && character === C_BRACKET_CLOSE) {
- if (depth) {
- depth--;
- } else {
- /* Allow white-space between content and
- * url in GFM mode. */
- if (!pedantic) {
- while (index < length) {
- character = value.charAt(index + 1);
-
- if (!whitespace(character)) {
- break;
- }
-
- subqueue += character;
- index++;
- }
- }
-
- if (value.charAt(index + 1) !== C_PAREN_OPEN) {
- return;
- }
-
- subqueue += C_PAREN_OPEN;
- closed = true;
- index++;
-
- break;
- }
- }
-
- queue += subqueue;
- subqueue = '';
- index++;
- }
-
- /* Eat the content closing. */
- if (!closed) {
- return;
- }
-
- content = queue;
- subvalue += queue + subqueue;
- index++;
-
- /* Eat white-space. */
- while (index < length) {
- character = value.charAt(index);
-
- if (!whitespace(character)) {
- break;
- }
-
- subvalue += character;
- index++;
- }
-
- /* Eat the URL. */
- character = value.charAt(index);
- markers = commonmark ? COMMONMARK_LINK_MARKERS : LINK_MARKERS;
- queue = '';
- beforeURL = subvalue;
-
- if (character === C_LT) {
- index++;
- beforeURL += C_LT;
-
- while (index < length) {
- character = value.charAt(index);
-
- if (character === C_GT) {
- break;
- }
-
- if (commonmark && character === '\n') {
- return;
- }
-
- queue += character;
- index++;
- }
-
- if (value.charAt(index) !== C_GT) {
- return;
- }
-
- subvalue += C_LT + queue + C_GT;
- url = queue;
- index++;
- } else {
- character = null;
- subqueue = '';
-
- while (index < length) {
- character = value.charAt(index);
-
- if (subqueue && own.call(markers, character)) {
- break;
- }
-
- if (whitespace(character)) {
- if (!pedantic) {
- break;
- }
-
- subqueue += character;
- } else {
- if (character === C_PAREN_OPEN) {
- depth++;
- } else if (character === C_PAREN_CLOSE) {
- if (depth === 0) {
- break;
- }
-
- depth--;
- }
-
- queue += subqueue;
- subqueue = '';
-
- if (character === C_BACKSLASH) {
- queue += C_BACKSLASH;
- character = value.charAt(++index);
- }
-
- queue += character;
- }
-
- index++;
- }
-
- subvalue += queue;
- url = queue;
- index = subvalue.length;
- }
-
- /* Eat white-space. */
- queue = '';
-
- while (index < length) {
- character = value.charAt(index);
-
- if (!whitespace(character)) {
- break;
- }
-
- queue += character;
- index++;
- }
-
- character = value.charAt(index);
- subvalue += queue;
-
- /* Eat the title. */
- if (queue && own.call(markers, character)) {
- index++;
- subvalue += character;
- queue = '';
- marker = markers[character];
- beforeTitle = subvalue;
-
- /* In commonmark-mode, things are pretty easy: the
- * marker cannot occur inside the title.
- *
- * Non-commonmark does, however, support nested
- * delimiters. */
- if (commonmark) {
- while (index < length) {
- character = value.charAt(index);
-
- if (character === marker) {
- break;
- }
-
- if (character === C_BACKSLASH) {
- queue += C_BACKSLASH;
- character = value.charAt(++index);
- }
-
- index++;
- queue += character;
- }
-
- character = value.charAt(index);
-
- if (character !== marker) {
- return;
- }
-
- title = queue;
- subvalue += queue + character;
- index++;
-
- while (index < length) {
- character = value.charAt(index);
-
- if (!whitespace(character)) {
- break;
- }
-
- subvalue += character;
- index++;
- }
- } else {
- subqueue = '';
-
- while (index < length) {
- character = value.charAt(index);
-
- if (character === marker) {
- if (hasMarker) {
- queue += marker + subqueue;
- subqueue = '';
- }
-
- hasMarker = true;
- } else if (!hasMarker) {
- queue += character;
- } else if (character === C_PAREN_CLOSE) {
- subvalue += queue + marker + subqueue;
- title = queue;
- break;
- } else if (whitespace(character)) {
- subqueue += character;
- } else {
- queue += marker + subqueue + character;
- subqueue = '';
- hasMarker = false;
- }
-
- index++;
- }
- }
- }
-
- if (value.charAt(index) !== C_PAREN_CLOSE) {
- return;
- }
-
- /* istanbul ignore if - never used (yet) */
- if (silent) {
- return true;
- }
-
- subvalue += C_PAREN_CLOSE;
-
- url = self.decode.raw(self.unescape(url), eat(beforeURL).test().end);
-
- if (title) {
- beforeTitle = eat(beforeTitle).test().end;
- title = self.decode.raw(self.unescape(title), beforeTitle);
- }
-
- node = {
- type: isImage ? 'image' : 'link',
- title: title || null,
- url: url
- };
-
- if (isImage) {
- node.alt = self.decode.raw(self.unescape(content), now) || null;
- } else {
- exit = self.enterLink();
- node.children = self.tokenizeInline(content, now);
- exit();
- }
-
- return eat(subvalue)(node);
-}
projects / dotfiles / .git / blobdiff