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godoc: add anchors to cmd documentation headings

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Also, disable server-side generation of TOC for commands as they would
only ever show Overview. The JS does a better job (for now).

Fixes #2732.

R=gri, dsymonds
CC=golang-dev
https://golang.org/cl/5558046
This commit is contained in:
Andrew Gerrand 2012-01-19 18:59:06 +11:00
parent b4829c1de6
commit 3358a5068a
3 changed files with 42 additions and 36 deletions
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58
doc/godocs.js
View File

@ -66,44 +66,32 @@ function godocs_generateTOC() {
var i;
for (i = 0; i < navbar.parentNode.childNodes.length; i++) {
var node = navbar.parentNode.childNodes[i];
if ((node.tagName != 'h2') && (node.tagName != 'H2') &&
(node.tagName != 'h3') && (node.tagName != 'H3')) {
continue;
}
if (!node.id) {
node.id = 'tmp_' + i;
}
var text = godocs_nodeToText(node);
if (!text) { continue; }
var textNode = document.createTextNode(text);
var link = document.createElement('a');
link.href = '#' + node.id;
link.appendChild(textNode);
// Then create the item itself
var item;
if ((node.tagName == 'h2') || (node.tagName == 'H2')) {
if (!node.id) {
node.id = 'tmp_' + i;
}
var text = godocs_nodeToText(node);
if (!text) { continue; }
var textNode = document.createTextNode(text);
var link = document.createElement('a');
link.href = '#' + node.id;
link.appendChild(textNode);
// Then create the item itself
var item = document.createElement('dt');
item.appendChild(link);
toc_items.push(item);
item = document.createElement('dt');
} else { // h3
item = document.createElement('dd');
}
if ((node.tagName == 'h3') || (node.tagName == 'H3')) {
if (!node.id) {
node.id = 'tmp_' + i;
}
var text = godocs_nodeToText(node);
if (!text) { continue; }
var textNode = document.createTextNode(text);
var link = document.createElement('a');
link.href = '#' + node.id;
link.appendChild(textNode);
// Then create the item itself
var item = document.createElement('dd');
item.appendChild(link);
toc_items.push(item);
}
item.appendChild(link);
toc_items.push(item);
}
if (toc_items.length <= 1) { return; }

2
lib/godoc/package.html
View File

@ -3,6 +3,7 @@
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
-->
{{if .IsPkg}}
<!-- Table of contents; must be named manual-nav to turn off auto nav. -->
<div id="manual-nav">
{{with .PDoc}}
@ -37,6 +38,7 @@
</dl>
{{end}}
</div>
{{end}}
<!-- Main page -->
{{with .PAst}}

18
src/pkg/go/doc/comment.go
View File

@ -68,7 +68,8 @@ var (
html_endp = []byte("</p>\n")
html_pre = []byte("<pre>")
html_endpre = []byte("</pre>\n")
html_h = []byte("<h3>")
html_h = []byte(`<h3 id="`)
html_hq = []byte(`">`)
html_endh = []byte("</h3>\n")
)
@ -225,6 +226,12 @@ type block struct {
lines []string
}
var nonAlphaNumRx = regexp.MustCompile(`[^a-zA-Z0-9]`)
func anchorID(line string) string {
return nonAlphaNumRx.ReplaceAllString(line, "_")
}
// ToHTML converts comment text to formatted HTML.
// The comment was prepared by DocReader,
// so it is known not to have leading, trailing blank lines
@ -253,9 +260,18 @@ func ToHTML(w io.Writer, text string, words map[string]string) {
w.Write(html_endp)
case opHead:
w.Write(html_h)
id := ""
for _, line := range b.lines {
if id == "" {
id = anchorID(line)
w.Write([]byte(id))
w.Write(html_hq)
}
commentEscape(w, line, true)
}
if id == "" {
w.Write(html_hq)
}
w.Write(html_endh)
case opPre:
w.Write(html_pre)