diaspora/lib/assets/javascripts/markdown-it-diaspora-linkify.js
2015-01-19 02:09:10 +01:00

120 lines
3.9 KiB
JavaScript

// TODO this is a temporary fix
// remove it as soon as markdown-it fixes its autolinking feature
/*! markdown-it-diaspora-linkify 0.1.0 https://github.com/diaspora/markdown-it-diaspora-linkify @license MIT */!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.markdownitDiasporaLinkify=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
// Replace link-like texts with link nodes.
//
'use strict';
var urlRegex = /(?:^|\s)(?:(?:https?|ftp):\/\/|(?:mailto:|xmpp:)\S+@|www[^.\s]*\.)\S*[^.,:;!?\s]/gi;
function isLinkOpen(str) {
return /^<a[>\s]/i.test(str);
}
function isLinkClose(str) {
return /^<\/a\s*>/i.test(str);
}
module.exports = function linkify_plugin(md) {
var arrayReplaceAt = md.utils.arrayReplaceAt;
function linkify(state) {
var i, j, l, tokens, token, text, nodes, ln, pos, level, htmlLinkLevel,
blockTokens = state.tokens, links, href, url;
if (!state.md.options.linkify) { return; }
for (j = 0, l = blockTokens.length; j < l; j++) {
if (blockTokens[j].type !== 'inline') { 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--) {
token = tokens[i];
// Skip content of markdown links
if (token.type === 'link_close') {
i--;
while (tokens[i].level !== token.level && tokens[i].type !== 'link_open') {
i--;
}
continue;
}
// Skip content of html tag links
if (token.type === 'html_inline') {
if (isLinkOpen(token.content) && htmlLinkLevel > 0) {
htmlLinkLevel--;
}
if (isLinkClose(token.content)) {
htmlLinkLevel++;
}
}
if (htmlLinkLevel > 0) { continue; }
if (token.type !== 'text') { continue; }
links = token.content.match(urlRegex);
if (links === null || !links.length) { continue; }
text = token.content;
// Now split string to nodes
nodes = [];
level = token.level;
for (ln = 0; ln < links.length; ln++) {
url = links[ln].trim();
href = url;
if (/^www/i.test(href)) { href = 'http://' + href; }
pos = text.indexOf(url);
if (pos) {
level = level;
nodes.push({
type: 'text',
content: text.slice(0, pos),
level: level
});
}
nodes.push({
type: 'link_open',
href: href,
target: '',
title: '',
level: level++
});
nodes.push({
type: 'text',
content: url,
level: level
});
nodes.push({
type: 'link_close',
level: --level
});
text = text.slice(pos + url.length);
}
if (text.length) {
nodes.push({
type: 'text',
content: text,
level: level
});
}
// replace current node
blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
}
}
}
md.core.ruler.at('linkify', linkify);
};
},{}]},{},[1])(1)
});