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Prefix all user-generated IDs in markup (#9477)
* Prefix all user-generated IDs in markup * Add user-content- to IDs in unit-tests * fixup markdown_test.go * update the hrefs for the wiki test * Add blackfriday extension regex Signed-off-by: jolheiser <john.olheiser@gmail.com>
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@ -58,6 +58,9 @@ var (
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emailRegex = regexp.MustCompile("(?:\\s|^|\\(|\\[)([a-zA-Z0-9.!#$%&'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9]{2,}(?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+)(?:\\s|$|\\)|\\]|\\.(\\s|$))")
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linkRegex, _ = xurls.StrictMatchingScheme("https?://")
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// blackfriday extensions create IDs like fn:user-content-footnote
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blackfridayExtRegex = regexp.MustCompile(`[^:]*:user-content-`)
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)
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// CSS class for action keywords (e.g. "closes: #1")
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@ -312,6 +315,12 @@ func (ctx *postProcessCtx) postProcess(rawHTML []byte) ([]byte, error) {
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}
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func (ctx *postProcessCtx) visitNode(node *html.Node) {
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// Add user-content- to IDs if they don't already have them
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for idx, attr := range node.Attr {
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if attr.Key == "id" && !(strings.HasPrefix(attr.Val, "user-content-") || blackfridayExtRegex.MatchString(attr.Val)) {
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node.Attr[idx].Val = "user-content-" + attr.Val
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}
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}
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// We ignore code, pre and already generated links.
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switch node.Type {
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case html.TextNode:
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@ -146,7 +146,9 @@ const (
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func RenderRaw(body []byte, urlPrefix string, wikiMarkdown bool) []byte {
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renderer := &Renderer{
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Renderer: blackfriday.NewHTMLRenderer(blackfriday.HTMLRendererParameters{
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Flags: blackfridayHTMLFlags,
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Flags: blackfridayHTMLFlags,
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FootnoteAnchorPrefix: "user-content-",
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HeadingIDPrefix: "user-content-",
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}),
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URLPrefix: urlPrefix,
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IsWiki: wikiMarkdown,
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@ -116,11 +116,11 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
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<li><a href="` + baseURLContent + `/plot_var_example" rel="nofollow">Plot var helper</a></li>
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</ul>
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`,
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`<h2 id="what-is-wine-staging">What is Wine Staging?</h2>
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`<h2 id="user-content-what-is-wine-staging">What is Wine Staging?</h2>
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<p><strong>Wine Staging</strong> on website <a href="http://wine-staging.com" rel="nofollow">wine-staging.com</a>.</p>
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<h2 id="quick-links">Quick Links</h2>
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<h2 id="user-content-quick-links">Quick Links</h2>
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<p>Here are some links to the most important topics. You can find the full list of pages at the sidebar.</p>
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@ -149,11 +149,11 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
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<a href="` + baseURLImages + `/images/2.png" rel="nofollow"><img src="` + baseURLImages + `/images/2.png" title="2.png" alt="images/2.png"/></a></li>
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</ol>
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<h2 id="custom-id">More tests</h2>
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<h2 id="user-content-custom-id">More tests</h2>
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<p>(from <a href="https://www.markdownguide.org/extended-syntax/" rel="nofollow">https://www.markdownguide.org/extended-syntax/</a>)</p>
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<h3 id="definition-list">Definition list</h3>
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<h3 id="user-content-definition-list">Definition list</h3>
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<dl>
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<dt>First Term</dt>
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@ -163,18 +163,18 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
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<dd>This is another definition of the second term.</dd>
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</dl>
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<h3 id="footnotes">Footnotes</h3>
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<h3 id="user-content-footnotes">Footnotes</h3>
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<p>Here is a simple footnote,<sup id="fnref:1"><a href="#fn:1" rel="nofollow">1</a></sup> and here is a longer one.<sup id="fnref:bignote"><a href="#fn:bignote" rel="nofollow">2</a></sup></p>
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<p>Here is a simple footnote,<sup id="fnref:user-content-1"><a href="#fn:user-content-1" rel="nofollow">1</a></sup> and here is a longer one.<sup id="fnref:user-content-bignote"><a href="#fn:user-content-bignote" rel="nofollow">2</a></sup></p>
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<div>
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<hr/>
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<ol>
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<li id="fn:1">This is the first footnote.</li>
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<li id="fn:user-content-1">This is the first footnote.</li>
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<li id="fn:bignote"><p>Here is one with multiple paragraphs and code.</p>
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<li id="fn:user-content-bignote"><p>Here is one with multiple paragraphs and code.</p>
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<p>Indent paragraphs to include them in the footnote.</p>
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@ -87,11 +87,11 @@ Here are some links to the most important topics. You can find the full list of
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[[images/icon-bug.png]]
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`,
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// rendered
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`<h2 id="what-is-wine-staging">What is Wine Staging?</h2>
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`<h2 id="user-content-what-is-wine-staging">What is Wine Staging?</h2>
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<p><strong>Wine Staging</strong> on website <a href="http://wine-staging.com" rel="nofollow">wine-staging.com</a>.</p>
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<h2 id="quick-links">Quick Links</h2>
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<h2 id="user-content-quick-links">Quick Links</h2>
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<p>Here are some links to the most important topics. You can find the full list of pages at the sidebar.</p>
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@ -2472,21 +2472,10 @@ $(document).ready(() => {
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// Set anchor.
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$('.markdown').each(function () {
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const headers = {};
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$(this).find('h1, h2, h3, h4, h5, h6').each(function () {
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let node = $(this);
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const val = encodeURIComponent(node.text().toLowerCase().replace(/[^\u00C0-\u1FFF\u2C00-\uD7FF\w\- ]/g, '').replace(/[ ]/g, '-'));
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let name = val;
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if (headers[val] > 0) {
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name = `${val}-${headers[val]}`;
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}
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if (headers[val] === undefined) {
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headers[val] = 1;
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} else {
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headers[val] += 1;
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}
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node = node.wrap(`<div id="${name}" class="anchor-wrap" ></div>`);
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node.append(`<a class="anchor" href="#${name}"><span class="octicon octicon-link"></span></a>`);
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node = node.wrap('<div class="anchor-wrap"></div>');
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node.append(`<a class="anchor" href="#${encodeURIComponent(node.attr('id'))}"><span class="octicon octicon-link"></span></a>`);
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});
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});
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