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More sensible ID generation for TOC

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This commit is contained in:
Joshua Bell 2015-08-22 11:03:03 -07:00
parent d5bd6ef417
commit de7a258471
1 changed files with 10 additions and 3 deletions
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13
reference.htm
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@ -607,7 +607,7 @@ function which implements the logic for walking over the array.<p>
var html = []; var html = [];
el.innerHTML = ""; el.innerHTML = "";
var level = 1, unique = 10000; var level = 1, unique = 1;
[].forEach.call(document.querySelectorAll('h2, h3'), function(c) { [].forEach.call(document.querySelectorAll('h2, h3'), function(c) {
var newLevel = parseInt(c.nodeName.charAt(1), 10); var newLevel = parseInt(c.nodeName.charAt(1), 10);
if (newLevel > level) { if (newLevel > level) {
@ -617,11 +617,18 @@ function which implements the logic for walking over the array.<p>
} }
level = newLevel; level = newLevel;
var key = 'key_' + unique++; function makeID(string) {
var id = String(string).replace(/[^a-zA-Z0-9]/g, '-');
while (document.getElementById(id))
id += '_' + unique++;
id = id.replace(/-+/g, '-');
return id;
}
var key = makeID(c.textContent);
html.push('<li><a href="#' + key + '">' + c.innerHTML + '</a>'); html.push('<li><a href="#' + key + '">' + c.innerHTML + '</a>');
c.setAttribute('id', key); c.id = key;
}); });