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better id generation...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2023-12-17 04:13:39 +03:00
parent 812c32d073
commit 29650ba7c9
1 changed files with 20 additions and 1 deletions
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21
experiments/outline-editor/editor.js
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@ -614,6 +614,24 @@ var toc = {
depth++ }
parent = parent.parentElement }
return depth }
// XXX revise...
var seen = new Set()
var makeID = function(text){
var id = encodeURI(
text
.trim()
.replace(/[#?$%:;.,]/g, '')
.replace(/\s+/g, '-'))
if(seen.has(id)
|| document.getElementById(id)){
var i = 1
var candidate = id +'-'+ i
while(seen.has(candidate)
|| document.getElementById(candidate)){
candidate = id +'-'+ i++ }
id = id +'-'+ i }
seen.add(id)
return id }
var makeTOC = function(root=outline){
var index = 0
var lst = document.createElement('ul')
@ -639,7 +657,8 @@ var toc = {
var elem = document.createElement('li')
var id = block.id == '' ?
// XXX do a better default...
'__'+ index++
//'__'+ index++
makeID(e.innerText)
: block.id
block.id = id
elem.innerHTML = `<a href="#${id}">${e.innerHTML.trim()}</a>`