Commit 54e2eeab093ad6ba4a25f929fbd35bcab4d6cdd0
2012-07-29T00:26:50
Added (and documented) Prism.languages.insertBefore
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diff --git a/components/prism-core.js b/components/prism-core.js
index 948e9af..a9d4874 100644
--- a/components/prism-core.js
+++ b/components/prism-core.js
@@ -10,7 +10,33 @@
var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i;
var _ = self.Prism = {
- languages: {},
+ languages: {
+ insertBefore: function (inside, before, insert, root) {
+ root = root || _.languages;
+ var grammar = root[inside];
+ var ret = {};
+
+ for (var token in grammar) {
+
+ if (grammar.hasOwnProperty(token)) {
+
+ if (token == before) {
+
+ for (var newToken in insert) {
+
+ if (insert.hasOwnProperty(newToken)) {
+ ret[newToken] = insert[newToken];
+ }
+ }
+ }
+
+ ret[token] = grammar[token];
+ }
+ }
+
+ return root[inside] = ret;
+ }
+ },
highlightAll: function(async, callback) {
var elements = document.querySelectorAll('code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code');
diff --git a/components/prism-core.min.js b/components/prism-core.min.js
index e2202ba..833c650 100644
--- a/components/prism-core.min.js
+++ b/components/prism-core.min.js
@@ -2,4 +2,4 @@
* Prism: Lightweight, robust, elegant syntax highlighting
* MIT license http://www.opensource.org/licenses/mit-license.php/
* @author Lea Verou http://lea.verou.me
- */(function(){var e=/\blang(?:uage)?-(?!\*)(\w+)\b/i,t=self.Prism={languages:{},highlightAll:function(e,n){var r=document.querySelectorAll('code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code');for(var i=0,s;s=r[i++];)t.highlightElement(s,e===!0,n)},highlightElement:function(r,i,s){var o,u,a=r;while(a&&!e.test(a.className))a=a.parentNode;if(a){o=(a.className.match(e)||[,""])[1];u=t.languages[o]}if(!u)return;r.className=r.className.replace(e,"")+" language-"+o;a=r.parentNode;if(/pre/i.test(a.nodeName)){var f=(a.className.match(e)||[,""])[1];a.className=a.className.replace(e,"")+" language-"+f}var l=r.textContent.trim();if(!l)return;l=l.replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/\u00a0/g," ");var c={element:r,language:o,grammar:u,code:l};t.hooks.run("before-highlight",c);if(i&&self.Worker){var h=new Worker(t.filename);h.onmessage=function(e){c.highlightedCode=n.stringify(JSON.parse(e.data));c.element.innerHTML=c.highlightedCode;s&&s.call(c.element);t.hooks.run("after-highlight",c)};h.postMessage(JSON.stringify({language:c.language,code:c.code}))}else{c.highlightedCode=t.highlight(c.code,c.grammar);c.element.innerHTML=c.highlightedCode;s&&s.call(r);t.hooks.run("after-highlight",c)}},highlight:function(e,r){return n.stringify(t.tokenize(e,r))},tokenize:function(e,n){var r=t.Token,i=[e],s=n.rest;if(s){for(var o in s)n[o]=s[o];delete n.rest}e:for(var o in n){if(!n.hasOwnProperty(o)||!n[o])continue;var u=n[o],a=u.inside,f=!!u.lookbehind||0;u=u.pattern||u;for(var l=0;l<i.length;l++){var c=i[l];if(i.length>e.length)break e;if(c instanceof r)continue;u.lastIndex=0;var h=u.exec(c);if(h){f&&(f=h[1].length);var p=h.index-1+f,h=h[0].slice(f),d=h.length,v=p+d,m=c.slice(0,p+1),g=c.slice(v+1),y=[l,1];m&&y.push(m);var b=new r(o,a?t.tokenize(h,a):h);y.push(b);g&&y.push(g);Array.prototype.splice.apply(i,y)}}}return i},hooks:{all:{},add:function(e,n){var r=t.hooks.all;r[e]=r[e]||[];r[e].push(n)},run:function(e,n){var r=t.hooks.all[e];if(!r||!r.length)return;for(var i=0,s;s=r[i++];)s(n)}}},n=t.Token=function(e,t){this.type=e;this.content=t};n.stringify=function(e){if(typeof e=="string")return e;if(Object.prototype.toString.call(e)=="[object Array]"){for(var r=0;r<e.length;r++)e[r]=n.stringify(e[r]);return e.join("")}var i={type:e.type,content:n.stringify(e.content),tag:"span",classes:["token",e.type],attributes:{}};i.type=="comment"&&(i.attributes.spellcheck="true");t.hooks.run("wrap",i);var s="";for(var o in i.attributes)s+=o+'="'+(i.attributes[o]||"")+'"';return"<"+i.tag+' class="'+i.classes.join(" ")+'" '+s+">"+i.content+"</"+i.tag+">"};if(!self.document){self.addEventListener("message",function(e){var n=JSON.parse(e.data),r=n.language;code=n.code;self.postMessage(JSON.stringify(t.tokenize(code,t.languages[r])));self.close()},!1);return}var r=document.getElementsByTagName("script");r=r[r.length-1];if(r){t.filename=r.src;document.addEventListener&&!r.hasAttribute("data-manual")&&document.addEventListener("DOMContentLoaded",t.highlightAll)}})();
\ No newline at end of file
+ */(function(){var e=/\blang(?:uage)?-(?!\*)(\w+)\b/i,t=self.Prism={languages:{insertBefore:function(e,n,r,i){i=i||t.languages;var s=i[e],o={};for(var u in s)if(s.hasOwnProperty(u)){if(u==n)for(var a in r)r.hasOwnProperty(a)&&(o[a]=r[a]);o[u]=s[u]}return i[e]=o}},highlightAll:function(e,n){var r=document.querySelectorAll('code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code');for(var i=0,s;s=r[i++];)t.highlightElement(s,e===!0,n)},highlightElement:function(r,i,s){var o,u,a=r;while(a&&!e.test(a.className))a=a.parentNode;if(a){o=(a.className.match(e)||[,""])[1];u=t.languages[o]}if(!u)return;r.className=r.className.replace(e,"")+" language-"+o;a=r.parentNode;if(/pre/i.test(a.nodeName)){var f=(a.className.match(e)||[,""])[1];a.className=a.className.replace(e,"")+" language-"+f}var l=r.textContent.trim();if(!l)return;l=l.replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/\u00a0/g," ");var c={element:r,language:o,grammar:u,code:l};t.hooks.run("before-highlight",c);if(i&&self.Worker){var h=new Worker(t.filename);h.onmessage=function(e){c.highlightedCode=n.stringify(JSON.parse(e.data));c.element.innerHTML=c.highlightedCode;s&&s.call(c.element);t.hooks.run("after-highlight",c)};h.postMessage(JSON.stringify({language:c.language,code:c.code}))}else{c.highlightedCode=t.highlight(c.code,c.grammar);c.element.innerHTML=c.highlightedCode;s&&s.call(r);t.hooks.run("after-highlight",c)}},highlight:function(e,r){return n.stringify(t.tokenize(e,r))},tokenize:function(e,n){var r=t.Token,i=[e],s=n.rest;if(s){for(var o in s)n[o]=s[o];delete n.rest}e:for(var o in n){if(!n.hasOwnProperty(o)||!n[o])continue;var u=n[o],a=u.inside,f=!!u.lookbehind||0;u=u.pattern||u;for(var l=0;l<i.length;l++){var c=i[l];if(i.length>e.length)break e;if(c instanceof r)continue;u.lastIndex=0;var h=u.exec(c);if(h){f&&(f=h[1].length);var p=h.index-1+f,h=h[0].slice(f),d=h.length,v=p+d,m=c.slice(0,p+1),g=c.slice(v+1),y=[l,1];m&&y.push(m);var b=new r(o,a?t.tokenize(h,a):h);y.push(b);g&&y.push(g);Array.prototype.splice.apply(i,y)}}}return i},hooks:{all:{},add:function(e,n){var r=t.hooks.all;r[e]=r[e]||[];r[e].push(n)},run:function(e,n){var r=t.hooks.all[e];if(!r||!r.length)return;for(var i=0,s;s=r[i++];)s(n)}}},n=t.Token=function(e,t){this.type=e;this.content=t};n.stringify=function(e){if(typeof e=="string")return e;if(Object.prototype.toString.call(e)=="[object Array]"){for(var r=0;r<e.length;r++)e[r]=n.stringify(e[r]);return e.join("")}var i={type:e.type,content:n.stringify(e.content),tag:"span",classes:["token",e.type],attributes:{}};i.type=="comment"&&(i.attributes.spellcheck="true");t.hooks.run("wrap",i);var s="";for(var o in i.attributes)s+=o+'="'+(i.attributes[o]||"")+'"';return"<"+i.tag+' class="'+i.classes.join(" ")+'" '+s+">"+i.content+"</"+i.tag+">"};if(!self.document){self.addEventListener("message",function(e){var n=JSON.parse(e.data),r=n.language;code=n.code;self.postMessage(JSON.stringify(t.tokenize(code,t.languages[r])));self.close()},!1);return}var r=document.getElementsByTagName("script");r=r[r.length-1];if(r){t.filename=r.src;document.addEventListener&&!r.hasAttribute("data-manual")&&document.addEventListener("DOMContentLoaded",t.highlightAll)}})();
\ No newline at end of file
diff --git a/components/prism-markup.js b/components/prism-markup.js
index 8e9314b..24e09a3 100644
--- a/components/prism-markup.js
+++ b/components/prism-markup.js
@@ -2,8 +2,6 @@ Prism.languages.markup = {
'comment': /<!--[\w\W]*?--(>|>)/g,
'prolog': /<\?.+?\?(>|>)/,
'doctype': /<!DOCTYPE.+?(>|>)/,
- 'script': null,
- 'style': null,
'cdata': /<!\[CDATA\[[\w\W]+]]>/i,
'tag': {
pattern: /(<|<)\/?[\w:-]+\s*[\w\W]*?(>|>)/gi,
@@ -35,35 +33,33 @@ Prism.languages.markup = {
};
if (Prism.languages.javascript) {
- Prism.languages.markup.script = {
- pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
- inside: {
- 'tag': {
- pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
- inside: Prism.languages.markup.tag.inside
- },
- rest: Prism.languages.javascript
+ Prism.languages.insertBefore('markup', 'cdata', {
+ 'script': {
+ pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
+ inside: {
+ 'tag': {
+ pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
+ inside: Prism.languages.markup.tag.inside
+ },
+ rest: Prism.languages.javascript
+ }
}
- };
-}
-else {
- delete Prism.languages.markup.script;
+ });
}
if (Prism.languages.css) {
- Prism.languages.markup.style = {
- pattern: /(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,
- inside: {
- 'tag': {
- pattern: /(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,
- inside: Prism.languages.markup.tag.inside
- },
- rest: Prism.languages.css
+ Prism.languages.insertBefore('markup', 'cdata', {
+ 'style': {
+ pattern: /(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,
+ inside: {
+ 'tag': {
+ pattern: /(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,
+ inside: Prism.languages.markup.tag.inside
+ },
+ rest: Prism.languages.css
+ }
}
- };
-}
-else {
- delete Prism.languages.markup.style;
+ });
}
// Plugin to make entity title show the real entity, idea by Roman Komarov
diff --git a/components/prism-markup.min.js b/components/prism-markup.min.js
index 6840234..195b170 100644
--- a/components/prism-markup.min.js
+++ b/components/prism-markup.min.js
@@ -1 +1 @@
-Prism.languages.markup={comment:/<!--[\w\W]*?--(>|>)/g,prolog:/<\?.+?\?(>|>)/,doctype:/<!DOCTYPE.+?(>|>)/,script:null,style:null,cdata:/<!\[CDATA\[[\w\W]+]]>/i,tag:{pattern:/(<|<)\/?[\w:-]+\s*[\w\W]*?(>|>)/gi,inside:{tag:{pattern:/^(<|<)\/?[\w:-]+/i,inside:{punctuation:/^(<|<)\/?/,namespace:/^[\w-]+?:/}},"attr-value":{pattern:/=(('|")[\w\W]*?(\2)|[^\s>]+)/gi,inside:{punctuation:/=/g}},punctuation:/\/?>|\/?>/g,"attr-name":{pattern:/[\w:-]+/g,inside:{namespace:/^[\w-]+?:/}}}},entity:/&#?[\da-z]{1,8};/gi};Prism.languages.javascript?Prism.languages.markup.script={pattern:/(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,inside:{tag:{pattern:/(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,inside:Prism.languages.markup.tag.inside},rest:Prism.languages.javascript}}:delete Prism.languages.markup.script;Prism.languages.css?Prism.languages.markup.style={pattern:/(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,inside:{tag:{pattern:/(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,inside:Prism.languages.markup.tag.inside},rest:Prism.languages.css}}:delete Prism.languages.markup.style;Prism.hooks.add("wrap",function(e){e.type==="entity"&&(e.attributes.title=e.content.replace(/&/,"&"))});
\ No newline at end of file
+Prism.languages.markup={comment:/<!--[\w\W]*?--(>|>)/g,prolog:/<\?.+?\?(>|>)/,doctype:/<!DOCTYPE.+?(>|>)/,cdata:/<!\[CDATA\[[\w\W]+]]>/i,tag:{pattern:/(<|<)\/?[\w:-]+\s*[\w\W]*?(>|>)/gi,inside:{tag:{pattern:/^(<|<)\/?[\w:-]+/i,inside:{punctuation:/^(<|<)\/?/,namespace:/^[\w-]+?:/}},"attr-value":{pattern:/=(('|")[\w\W]*?(\2)|[^\s>]+)/gi,inside:{punctuation:/=/g}},punctuation:/\/?>|\/?>/g,"attr-name":{pattern:/[\w:-]+/g,inside:{namespace:/^[\w-]+?:/}}}},entity:/&#?[\da-z]{1,8};/gi};Prism.languages.javascript&&Prism.languages.insertBefore("markup","cdata",{script:{pattern:/(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,inside:{tag:{pattern:/(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,inside:Prism.languages.markup.tag.inside},rest:Prism.languages.javascript}}});Prism.languages.css&&Prism.languages.insertBefore("markup","cdata",{style:{pattern:/(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,inside:{tag:{pattern:/(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,inside:Prism.languages.markup.tag.inside},rest:Prism.languages.css}}});Prism.hooks.add("wrap",function(e){e.type==="entity"&&(e.attributes.title=e.content.replace(/&/,"&"))});
\ No newline at end of file
diff --git a/extending.html b/extending.html
index a7d386d..c0ff002 100644
--- a/extending.html
+++ b/extending.html
@@ -9,7 +9,7 @@
<script src="../prefixfree/prefixfree.min.js"></script>
</head>
-<body>
+<body class="language-javascript">
<header>
<div class="intro" data-src="templates/header-main.html" data-type="text/html"></div>
@@ -25,7 +25,7 @@
<pre data-src="components/prism-css.js"></pre>
<p>A regular expression literal is the simplest way to express a token. An alternative way, with more options, is by using an object literal. With that notation, the regular expression describing the token would be the <code>pattern</code> attribute:</p>
- <pre class="prism"><code class="language-javascript">...
+ <pre><code class="language-javascript">...
'tokenname': {
pattern: /regex/
}
@@ -40,25 +40,63 @@
<pre data-src="components/prism-markup.js"></pre></dd>
<dt>lookbehind</dt>
- <dd>This option mitigates JavaScript’s lack of lookbehind. When set to <code class="prism language-javascript">true</code>,
+ <dd>This option mitigates JavaScript’s lack of lookbehind. When set to <code>true</code>,
the first capturing group in the regex <code>pattern</code> is discarded when matching this token, so it effectively behaves
- as if it was lookbehind.</dd>
+ as if it was lookbehind. For an example of this, check out the JavaScript language definition, in particular the regex and line-comment tokens:
+ <pre data-src="components/prism-javascript.js"></pre></dd>
<dt>rest</dt>
<dd>Accepts an object literal with tokens and appends them to the end of the current object literal. Useful for referring to tokens defined elsewhere. For an example where <code>rest</code> is useful, check the Markup definitions above.</dd>
</dl>
<p>Unless explicitly allowed through the <code>inside</code> property, each token cannot contain other tokens, so their order is significant. Although per the ECMAScript specification, objects are not required to have a specific ordering of their properties, in practice they do in every modern browser.</p>
+
+ <section>
+ <h1><code>Prism.languages.insertBefore(inside, before, insert<span class="optional" title="Default value: Prism.languages">, root</span>)</code></h1>
+
+ <p>This is a helper method to ease modifying existing languages. For example, the CSS language definition not only defines CSS highlighting for CSS documents,
+ but also needs to define highlighting for CSS embedded in HTML through <code class="language-markup"><style></code> elements. To do this, it needs to modify
+ <code>Prism.languages.markup</code> and add the appropriate tokens. However, <code>Prism.languages.markup</code>
+ is a regular JavaScript object literal, so if you do this:</p>
+
+ <pre><code >Prism.languages.markup.style = {
+ /* tokens */
+ };</code></pre>
+
+ <p>then the <code>style</code> token will be added (and processed) at the end. <code>Prism.languages.insertBefore</code> allows you to insert
+ tokens <em>before</em> existing tokens. For the CSS example above, you would use it like this:</p>
+
+ <pre><code>Prism.languages.insertBefore('markup', 'cdata', {
+ 'style': {
+ /* tokens */
+ }
+});</code></pre>
+
+ <h2>Parameters</h2>
+ <dl>
+ <dt>inside</dt>
+ <dd>The property of <code>root</code> that contains the object to be modified.</dd>
+
+ <dt>before</dt>
+ <dd>Key to insert before (String)</dd>
+
+ <dt>insert</dt>
+ <dd>An object containing the key-value pairs to be inserted</dd>
+
+ <dt>root</dt>
+ <dd>The root object, i.e. the object that contains the object that will be modified. Optional, default value is <code>Prism.languages</code>.</dd>
+ </dl>
+ </section>
</section>
<section id="writing-plugins">
<h1>Writing plugins</h1>
- <p>Prism’s plugin architecture is fairly simple. To add a callback, you use <code class="prism language-javascript">Prism.hooks.add(hookname, callback)</code>.
+ <p>Prism’s plugin architecture is fairly simple. To add a callback, you use <code class="language-javascript">Prism.hooks.add(hookname, callback)</code>.
<code>hookname</code> is a string with the hook id, that uniquely identifies the hook your code should run at.
<code>callback</code> is a function that accepts one parameter: an object with various variables that can be modified, since objects in JavaScript are passed by reference.
- For example, here’s a plugin that enchances HTML/XML entities to include a tooltip that shows the actual character:
- <pre class="prism"><code class="language-javascript">Prism.hooks.add('wrap', function(env) {
+ For example, here’s a plugin from the Markup language definition that adds a tooltip to entity tokens which shows the actual character encoded:
+ <pre><code class="language-javascript">Prism.hooks.add('wrap', function(env) {
if (env.token === 'entity') {
env.attributes['title'] = env.content.replace(/&amp;/, '&');
}
diff --git a/prism.js b/prism.js
index 9f1cd30..280437d 100644
--- a/prism.js
+++ b/prism.js
@@ -16,7 +16,33 @@
var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i;
var _ = self.Prism = {
- languages: {},
+ languages: {
+ insertBefore: function (inside, before, insert, root) {
+ root = root || _.languages;
+ var grammar = root[inside];
+ var ret = {};
+
+ for (var token in grammar) {
+
+ if (grammar.hasOwnProperty(token)) {
+
+ if (token == before) {
+
+ for (var newToken in insert) {
+
+ if (insert.hasOwnProperty(newToken)) {
+ ret[newToken] = insert[newToken];
+ }
+ }
+ }
+
+ ret[token] = grammar[token];
+ }
+ }
+
+ return root[inside] = ret;
+ }
+ },
highlightAll: function(async, callback) {
var elements = document.querySelectorAll('code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code');
@@ -325,8 +351,6 @@ Prism.languages.markup = {
'comment': /<!--[\w\W]*?--(>|>)/g,
'prolog': /<\?.+?\?(>|>)/,
'doctype': /<!DOCTYPE.+?(>|>)/,
- 'script': null,
- 'style': null,
'cdata': /<!\[CDATA\[[\w\W]+]]>/i,
'tag': {
pattern: /(<|<)\/?[\w:-]+\s*[\w\W]*?(>|>)/gi,
@@ -358,35 +382,33 @@ Prism.languages.markup = {
};
if (Prism.languages.javascript) {
- Prism.languages.markup.script = {
- pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
- inside: {
- 'tag': {
- pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
- inside: Prism.languages.markup.tag.inside
- },
- rest: Prism.languages.javascript
+ Prism.languages.insertBefore('markup', 'cdata', {
+ 'script': {
+ pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
+ inside: {
+ 'tag': {
+ pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
+ inside: Prism.languages.markup.tag.inside
+ },
+ rest: Prism.languages.javascript
+ }
}
- };
-}
-else {
- delete Prism.languages.markup.script;
+ });
}
if (Prism.languages.css) {
- Prism.languages.markup.style = {
- pattern: /(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,
- inside: {
- 'tag': {
- pattern: /(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,
- inside: Prism.languages.markup.tag.inside
- },
- rest: Prism.languages.css
+ Prism.languages.insertBefore('markup', 'cdata', {
+ 'style': {
+ pattern: /(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,
+ inside: {
+ 'tag': {
+ pattern: /(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,
+ inside: Prism.languages.markup.tag.inside
+ },
+ rest: Prism.languages.css
+ }
}
- };
-}
-else {
- delete Prism.languages.markup.style;
+ });
}
// Plugin to make entity title show the real entity, idea by Roman Komarov