You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
131 lines
4.1 KiB
131 lines
4.1 KiB
/**
|
|
* HTML abbreviation builder
|
|
* -------------------------
|
|
* (c) MightyPork, 2015
|
|
* MIT License
|
|
*/
|
|
|
|
(function () {
|
|
"use strict";
|
|
|
|
function _extend(a, b) {
|
|
if (!b) return;
|
|
for (var i in a) {
|
|
if (b.hasOwnProperty(i)) {
|
|
a[i] = b[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
function _escape(s) {
|
|
return s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
|
|
}
|
|
|
|
|
|
/** Public function */
|
|
function abbr(config) {
|
|
|
|
// Default config options
|
|
|
|
var opts = {
|
|
// selector in which to search for abbreviations
|
|
where: 'body',
|
|
// abbreviation list - word: explanation
|
|
words: {},
|
|
// Tag used to mark the matches
|
|
tag: 'abbr',
|
|
// Attribute holding the "description" to be added to the tag
|
|
attr: 'title',
|
|
// Case insensitive
|
|
ci: true,
|
|
// tags that shall not be traversed (in addition to opts.tag)
|
|
excluded: ['script', 'style', 'code', 'head', 'textarea', 'embed'],
|
|
// Extra excluded (doesn't overwrite the original list)
|
|
exclude: []
|
|
};
|
|
|
|
|
|
_extend(opts, config);
|
|
|
|
// matches tags that shouldn't be traversed
|
|
var badRegex = new RegExp('(' + opts.excluded.concat(opts.exclude).join('|') + '|' + opts.tag + ')', 'i');
|
|
|
|
var wordlist = [];
|
|
for (var word in opts.words) {
|
|
if (!opts.words.hasOwnProperty(word)) continue;
|
|
|
|
wordlist.push({
|
|
w: word,
|
|
t: opts.words[word],
|
|
r: new RegExp('\\b' + _escape(word) + '\\b', opts.ci ? 'gi' : 'g'),
|
|
l: word.length
|
|
});
|
|
}
|
|
|
|
function _handle_nodes(nodes) {
|
|
var i, j, node, offset, chop, collected, wrap, abbr_txt, abbr_txt_clone;
|
|
|
|
for (i = 0; i < nodes.length; i++) {
|
|
node = nodes[i];
|
|
|
|
if (node.nodeType == 1) {
|
|
|
|
if (node.childNodes && !badRegex.test(node.tagName)) {
|
|
// ugly hack to convert live node list to array
|
|
var nl = [];
|
|
for (j = 0; j < node.childNodes.length; j++) nl.push(node.childNodes[j]);
|
|
_handle_nodes(nl);
|
|
}
|
|
|
|
} else if (node.nodeType == 3) {
|
|
|
|
// find replacement positions within the text node
|
|
var text = node.textContent;
|
|
var replpairs = [];
|
|
for (j = 0; j < wordlist.length; j++) {
|
|
var obj = wordlist[j];
|
|
text.replace(obj.r, function (_, offset) {
|
|
replpairs.push({at: offset, len: obj.l, t: obj.t});
|
|
});
|
|
}
|
|
|
|
// sort by position
|
|
replpairs.sort(function (a, b) {
|
|
return a.at - b.at;
|
|
});
|
|
|
|
for (offset = 0, j = 0; j < replpairs.length; j++) {
|
|
var rp = replpairs[j];
|
|
|
|
// remove non-abbr text
|
|
chop = rp.at - offset;
|
|
if (chop < 0) continue;
|
|
|
|
node = node.splitText(chop);
|
|
offset += chop;
|
|
|
|
// collect abbr text
|
|
chop = rp.len;
|
|
collected = node;
|
|
node = node.splitText(chop);
|
|
offset += chop;
|
|
|
|
// the highlight thing
|
|
wrap = document.createElement(opts.tag);
|
|
wrap.setAttribute(opts.attr, rp.t);
|
|
abbr_txt = collected;
|
|
abbr_txt_clone = abbr_txt.cloneNode(true);
|
|
wrap.appendChild(abbr_txt_clone);
|
|
abbr_txt.parentNode.replaceChild(wrap, abbr_txt);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_handle_nodes(document.querySelectorAll(opts.where));
|
|
}
|
|
|
|
// make it public
|
|
window.abbr = abbr;
|
|
})();
|
|
|