1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
document.addEventListener("DOMContentLoaded", function () {
// add the search form and bind the events
document
.querySelector("h1")
.insertAdjacentHTML(
"afterend",
[
"<p>Filter entries by content:",
'<input type="text" value="" id="searchbox" style="width: 50%">',
'<input type="submit" id="searchbox-submit" value="Filter"></p>',
].join("\n"),
);
function doFilter() {
let query;
try {
query = new RegExp(document.querySelector("#searchbox").value, "i");
} catch (e) {
return; // not a valid regex (yet)
}
// find headers for the versions (What's new in Python X.Y.Z?)
const h2s = document.querySelectorAll("#changelog h2");
for (const h2 of h2s) {
let sections_found = 0;
// find headers for the sections (Core, Library, etc.)
const h3s = h2.parentNode.querySelectorAll("h3");
for (const h3 of h3s) {
let entries_found = 0;
// find all the entries
const lis = h3.parentNode.querySelectorAll("li");
for (let li of lis) {
// check if the query matches the entry
if (query.test(li.textContent)) {
li.style.display = "block";
entries_found++;
} else {
li.style.display = "none";
}
}
// if there are entries, show the section, otherwise hide it
if (entries_found > 0) {
h3.parentNode.style.display = "block";
sections_found++;
} else {
h3.parentNode.style.display = "none";
}
}
if (sections_found > 0) {
h2.parentNode.style.display = "block";
} else {
h2.parentNode.style.display = "none";
}
}
}
document.querySelector("#searchbox").addEventListener("keyup", doFilter);
document
.querySelector("#searchbox-submit")
.addEventListener("click", doFilter);
});
|
