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-rw-r--r--client/client.js80
1 files changed, 53 insertions, 27 deletions
diff --git a/client/client.js b/client/client.js
index 84ad60c..f55c388 100644
--- a/client/client.js
+++ b/client/client.js
@@ -33,7 +33,7 @@ var frontpage = [
"Formatting:",
"Whitespace is preserved, so source code can be pasted verbatim.",
"Surround LaTeX with a dollar sign for inline style $\\zeta(2) = \\pi^2/6$, and two dollars for display. $$\\int_0^1 \\int_0^1 \\frac{1}{1-xy} dx dy = \\frac{\\pi^2}{6}$$",
- "For syntax highlight, the first line of the code block must begin with #<format> where <format> can be html, js or any known format.",
+ "For syntax highlight, wrap the code like: ```<language> <the code>``` where <language> is any known programming language.",
"",
"Current Github: https://github.com/hack-chat",
"Legacy GitHub: https://github.com/AndrewBelt/hack.chat",
@@ -368,33 +368,38 @@ function pushMessage(args) {
var textEl = document.createElement('pre');
textEl.classList.add('text');
- textEl.textContent = args.text || '';
- textEl.innerHTML = textEl.innerHTML.replace(/(\?|https?:\/\/)\S+?(?=[,.!?:)]?\s|$)/g, parseLinks);
-
- if ($('#syntax-highlight').checked && textEl.textContent.indexOf('#') == 0) {
- var lang = textEl.textContent.split(/\s+/g)[0].replace('#', '');
- var codeEl = document.createElement('code');
- codeEl.classList.add(lang);
- var content = textEl.textContent.replace('#' + lang, '');
- codeEl.textContent = content.trim();
- hljs.highlightBlock(codeEl);
- textEl.innerHTML = '';
- textEl.appendChild(codeEl);
- } else if ($('#parse-latex').checked) {
- // Temporary hotfix for \rule spamming, see https://github.com/Khan/KaTeX/issues/109
- textEl.innerHTML = textEl.innerHTML.replace(/\\rule|\\\\\s*\[.*?\]/g, '');
- try {
- renderMathInElement(textEl, {
- delimiters: [
- { left: "$$", right: "$$", display: true },
- { left: "$", right: "$", display: false },
- ]
- })
- } catch (e) {
- console.warn(e);
- }
+ textEl.textContent = args.text || '';
+
+ if($('#syntax-highlight').checked && textEl.textContent.includes('```')) {
+ var textParts = textEl.textContent.split('```');
+ var ignore = 0;
+ textEl.innerHTML = '';
+ for(var i=0; i< textParts.length; i++) {
+ if(i==ignore) {
+ textEl.innerHTML += parseLatex(textParts[i]);
+ continue;
+ }
+ var lang = textParts[i].split(/\s+/g)[0];
+ if(lang == '') {
+ textEl.innerHTML += parseLatex('```' + textParts[i]);
+ continue;
+ }
+
+ var codeEl = document.createElement('code');
+ codeEl.classList.add(lang);
+ codeEl.textContent = textParts[i].replace(lang, '').trim();
+ hljs.highlightBlock(codeEl);
+
+ textEl.innerHTML += codeEl.outerHTML.toString();
+ ignore = i+1;
+ }
+ } else {
+ var parsed = parseLatex(textEl.textContent);
+ if(parsed != null)
+ textEl.innerHTML = parsed;
}
-
+ textEl.innerHTML = textEl.innerHTML.replace(/(\?|https?:\/\/)\S+?(?=[,.!?:)]?\s|$)/g, parseLinks);
+
messageEl.appendChild(textEl);
// Scroll to bottom
@@ -408,6 +413,27 @@ function pushMessage(args) {
updateTitle();
}
+function parseLatex(str) {
+ if ($('#parse-latex').checked) {
+ // Temporary hotfix for \rule spamming, see https://github.com/Khan/KaTeX/issues/109
+ str = str.replace(/\\rule|\\\\\s*\[.*?\]/g, '');
+ var holEl = document.createElement('p');
+ holEl.textContent = str;
+ try {
+ renderMathInElement(holEl, {
+ delimiters: [
+ { left: "$$", right: "$$", display: true },
+ { left: "$", right: "$", display: false },
+ ]
+ });
+ return holEl.innerHTML.toString();
+ } catch (e) {
+ console.warn(e);
+ }
+ }
+ return null;
+}
+
function insertAtCursor(text) {
var input = $('#chatinput');
var start = input.selectionStart || 0;