Commit d33d259c5599813f1d45fe4b1d51c09b76fffef7

Michael Schmidt 2018-12-02T00:02:57

Ignore duplicates in insertBefore (#1628) Fix #1525 and implement option number 2.

diff --git a/components/prism-core.js b/components/prism-core.js
index 7956b3e..036870f 100644
--- a/components/prism-core.js
+++ b/components/prism-core.js
@@ -96,7 +96,7 @@ var _ = _self.Prism = {
 		/**
 		 * Insert a token before another token in a language literal
 		 * As this needs to recreate the object (we cannot actually insert before keys in object literals),
-		 * we cannot just provide an object, we need anobject and a key.
+		 * we cannot just provide an object, we need an object and a key.
 		 * @param inside The key (or language id) of the parent
 		 * @param before The key to insert before.
 		 * @param insert Object with the key/value pairs to insert
@@ -108,20 +108,20 @@ var _ = _self.Prism = {
 			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];
+					// Do not insert token which also occur in insert. See #1525
+					if (!insert.hasOwnProperty(token)) {
+						ret[token] = grammar[token];
+					}
 				}
 			}
 
diff --git a/components/prism-core.min.js b/components/prism-core.min.js
index 0c431ce..73c55c9 100644
--- a/components/prism-core.min.js
+++ b/components/prism-core.min.js
@@ -1 +1 @@
-var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(){var e=/\blang(?:uage)?-([\w-]+)\b/i,t=0,n=_self.Prism={manual:_self.Prism&&_self.Prism.manual,disableWorkerMessageHandler:_self.Prism&&_self.Prism.disableWorkerMessageHandler,util:{encode:function(e){return e instanceof a?new a(e.type,n.util.encode(e.content),e.alias):"Array"===n.util.type(e)?e.map(n.util.encode):e.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/\u00a0/g," ")},type:function(e){return Object.prototype.toString.call(e).slice(8,-1)},objId:function(e){return e.__id||Object.defineProperty(e,"__id",{value:++t}),e.__id},clone:function(e,t){var a=n.util.type(e);switch(t=t||{},a){case"Object":if(t[n.util.objId(e)])return t[n.util.objId(e)];var r={};t[n.util.objId(e)]=r;for(var l in e)e.hasOwnProperty(l)&&(r[l]=n.util.clone(e[l],t));return r;case"Array":if(t[n.util.objId(e)])return t[n.util.objId(e)];var r=[];return t[n.util.objId(e)]=r,e.forEach(function(e,a){r[a]=n.util.clone(e,t)}),r}return e}},languages:{extend:function(e,t){var a=n.util.clone(n.languages[e]);for(var r in t)a[r]=t[r];return a},insertBefore:function(e,t,a,r){r=r||n.languages;var l=r[e],i={};for(var o in l)if(l.hasOwnProperty(o)){if(o==t)for(var s in a)a.hasOwnProperty(s)&&(i[s]=a[s]);i[o]=l[o]}var u=r[e];return r[e]=i,n.languages.DFS(n.languages,function(t,n){n===u&&t!=e&&(this[t]=i)}),i},DFS:function(e,t,a,r){r=r||{};for(var l in e)e.hasOwnProperty(l)&&(t.call(e,l,e[l],a||l),"Object"!==n.util.type(e[l])||r[n.util.objId(e[l])]?"Array"!==n.util.type(e[l])||r[n.util.objId(e[l])]||(r[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,l,r)):(r[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,null,r)))}},plugins:{},highlightAll:function(e,t){n.highlightAllUnder(document,e,t)},highlightAllUnder:function(e,t,a){var r={callback:a,selector:'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'};n.hooks.run("before-highlightall",r);for(var l,i=r.elements||e.querySelectorAll(r.selector),o=0;l=i[o++];)n.highlightElement(l,t===!0,r.callback)},highlightElement:function(t,a,r){for(var l,i,o=t;o&&!e.test(o.className);)o=o.parentNode;o&&(l=(o.className.match(e)||[,""])[1].toLowerCase(),i=n.languages[l]),t.className=t.className.replace(e,"").replace(/\s+/g," ")+" language-"+l,t.parentNode&&(o=t.parentNode,/pre/i.test(o.nodeName)&&(o.className=o.className.replace(e,"").replace(/\s+/g," ")+" language-"+l));var s=t.textContent,u={element:t,language:l,grammar:i,code:s};if(n.hooks.run("before-sanity-check",u),!u.code||!u.grammar)return u.code&&(n.hooks.run("before-highlight",u),u.element.textContent=u.code,n.hooks.run("after-highlight",u)),n.hooks.run("complete",u),void 0;if(n.hooks.run("before-highlight",u),a&&_self.Worker){var g=new Worker(n.filename);g.onmessage=function(e){u.highlightedCode=e.data,n.hooks.run("before-insert",u),u.element.innerHTML=u.highlightedCode,n.hooks.run("after-highlight",u),n.hooks.run("complete",u),r&&r.call(u.element)},g.postMessage(JSON.stringify({language:u.language,code:u.code,immediateClose:!0}))}else u.highlightedCode=n.highlight(u.code,u.grammar,u.language),n.hooks.run("before-insert",u),u.element.innerHTML=u.highlightedCode,n.hooks.run("after-highlight",u),n.hooks.run("complete",u),r&&r.call(t)},highlight:function(e,t,r){var l={code:e,grammar:t,language:r};return n.hooks.run("before-tokenize",l),l.tokens=n.tokenize(l.code,l.grammar),n.hooks.run("after-tokenize",l),a.stringify(n.util.encode(l.tokens),l.language)},matchGrammar:function(e,t,a,r,l,i,o){var s=n.Token;for(var u in a)if(a.hasOwnProperty(u)&&a[u]){if(u==o)return;var g=a[u];g="Array"===n.util.type(g)?g:[g];for(var c=0;c<g.length;++c){var h=g[c],f=h.inside,d=!!h.lookbehind,m=!!h.greedy,p=0,y=h.alias;if(m&&!h.pattern.global){var v=h.pattern.toString().match(/[imuy]*$/)[0];h.pattern=RegExp(h.pattern.source,v+"g")}h=h.pattern||h;for(var b=r,k=l;b<t.length;k+=t[b].length,++b){var w=t[b];if(t.length>e.length)return;if(!(w instanceof s)){if(m&&b!=t.length-1){h.lastIndex=k;var _=h.exec(e);if(!_)break;for(var j=_.index+(d?_[1].length:0),A=_.index+_[0].length,P=b,x=k,I=t.length;I>P&&(A>x||!t[P].type&&!t[P-1].greedy);++P)x+=t[P].length,j>=x&&(++b,k=x);if(t[b]instanceof s)continue;N=P-b,w=e.slice(k,x),_.index-=k}else{h.lastIndex=0;var _=h.exec(w),N=1}if(_){d&&(p=_[1]?_[1].length:0);var j=_.index+p,_=_[0].slice(p),A=j+_.length,O=w.slice(0,j),S=w.slice(A),C=[b,N];O&&(++b,k+=O.length,C.push(O));var E=new s(u,f?n.tokenize(_,f):_,y,_,m);if(C.push(E),S&&C.push(S),Array.prototype.splice.apply(t,C),1!=N&&n.matchGrammar(e,t,a,b,k,!0,u),i)break}else if(i)break}}}}},tokenize:function(e,t){var a=[e],r=t.rest;if(r){for(var l in r)t[l]=r[l];delete t.rest}return n.matchGrammar(e,a,t,0,0,!1),a},hooks:{all:{},add:function(e,t){var a=n.hooks.all;a[e]=a[e]||[],a[e].push(t)},run:function(e,t){var a=n.hooks.all[e];if(a&&a.length)for(var r,l=0;r=a[l++];)r(t)}}},a=n.Token=function(e,t,n,a,r){this.type=e,this.content=t,this.alias=n,this.length=0|(a||"").length,this.greedy=!!r};if(a.stringify=function(e,t,r){if("string"==typeof e)return e;if("Array"===n.util.type(e))return e.map(function(n){return a.stringify(n,t,e)}).join("");var l={type:e.type,content:a.stringify(e.content,t,r),tag:"span",classes:["token",e.type],attributes:{},language:t,parent:r};if(e.alias){var i="Array"===n.util.type(e.alias)?e.alias:[e.alias];Array.prototype.push.apply(l.classes,i)}n.hooks.run("wrap",l);var o=Object.keys(l.attributes).map(function(e){return e+'="'+(l.attributes[e]||"").replace(/"/g,"&quot;")+'"'}).join(" ");return"<"+l.tag+' class="'+l.classes.join(" ")+'"'+(o?" "+o:"")+">"+l.content+"</"+l.tag+">"},!_self.document)return _self.addEventListener?(n.disableWorkerMessageHandler||_self.addEventListener("message",function(e){var t=JSON.parse(e.data),a=t.language,r=t.code,l=t.immediateClose;_self.postMessage(n.highlight(r,n.languages[a],a)),l&&_self.close()},!1),_self.Prism):_self.Prism;var r=document.currentScript||[].slice.call(document.getElementsByTagName("script")).pop();return r&&(n.filename=r.src,n.manual||r.hasAttribute("data-manual")||("loading"!==document.readyState?window.requestAnimationFrame?window.requestAnimationFrame(n.highlightAll):window.setTimeout(n.highlightAll,16):document.addEventListener("DOMContentLoaded",n.highlightAll))),_self.Prism}();"undefined"!=typeof module&&module.exports&&(module.exports=Prism),"undefined"!=typeof global&&(global.Prism=Prism);
\ No newline at end of file
+var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(){var e=/\blang(?:uage)?-([\w-]+)\b/i,t=0,n=_self.Prism={manual:_self.Prism&&_self.Prism.manual,disableWorkerMessageHandler:_self.Prism&&_self.Prism.disableWorkerMessageHandler,util:{encode:function(e){return e instanceof a?new a(e.type,n.util.encode(e.content),e.alias):"Array"===n.util.type(e)?e.map(n.util.encode):e.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/\u00a0/g," ")},type:function(e){return Object.prototype.toString.call(e).slice(8,-1)},objId:function(e){return e.__id||Object.defineProperty(e,"__id",{value:++t}),e.__id},clone:function(e,t){var a=n.util.type(e);switch(t=t||{},a){case"Object":if(t[n.util.objId(e)])return t[n.util.objId(e)];var r={};t[n.util.objId(e)]=r;for(var l in e)e.hasOwnProperty(l)&&(r[l]=n.util.clone(e[l],t));return r;case"Array":if(t[n.util.objId(e)])return t[n.util.objId(e)];var r=[];return t[n.util.objId(e)]=r,e.forEach(function(e,a){r[a]=n.util.clone(e,t)}),r}return e}},languages:{extend:function(e,t){var a=n.util.clone(n.languages[e]);for(var r in t)a[r]=t[r];return a},insertBefore:function(e,t,a,r){r=r||n.languages;var l=r[e],i={};for(var o in l)if(l.hasOwnProperty(o)){if(o==t)for(var s in a)a.hasOwnProperty(s)&&(i[s]=a[s]);a.hasOwnProperty(o)||(i[o]=l[o])}var u=r[e];return r[e]=i,n.languages.DFS(n.languages,function(t,n){n===u&&t!=e&&(this[t]=i)}),i},DFS:function(e,t,a,r){r=r||{};for(var l in e)e.hasOwnProperty(l)&&(t.call(e,l,e[l],a||l),"Object"!==n.util.type(e[l])||r[n.util.objId(e[l])]?"Array"!==n.util.type(e[l])||r[n.util.objId(e[l])]||(r[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,l,r)):(r[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,null,r)))}},plugins:{},highlightAll:function(e,t){n.highlightAllUnder(document,e,t)},highlightAllUnder:function(e,t,a){var r={callback:a,selector:'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'};n.hooks.run("before-highlightall",r);for(var l,i=r.elements||e.querySelectorAll(r.selector),o=0;l=i[o++];)n.highlightElement(l,t===!0,r.callback)},highlightElement:function(t,a,r){for(var l,i,o=t;o&&!e.test(o.className);)o=o.parentNode;o&&(l=(o.className.match(e)||[,""])[1].toLowerCase(),i=n.languages[l]),t.className=t.className.replace(e,"").replace(/\s+/g," ")+" language-"+l,t.parentNode&&(o=t.parentNode,/pre/i.test(o.nodeName)&&(o.className=o.className.replace(e,"").replace(/\s+/g," ")+" language-"+l));var s=t.textContent,u={element:t,language:l,grammar:i,code:s};if(n.hooks.run("before-sanity-check",u),!u.code||!u.grammar)return u.code&&(n.hooks.run("before-highlight",u),u.element.textContent=u.code,n.hooks.run("after-highlight",u)),n.hooks.run("complete",u),void 0;if(n.hooks.run("before-highlight",u),a&&_self.Worker){var g=new Worker(n.filename);g.onmessage=function(e){u.highlightedCode=e.data,n.hooks.run("before-insert",u),u.element.innerHTML=u.highlightedCode,n.hooks.run("after-highlight",u),n.hooks.run("complete",u),r&&r.call(u.element)},g.postMessage(JSON.stringify({language:u.language,code:u.code,immediateClose:!0}))}else u.highlightedCode=n.highlight(u.code,u.grammar,u.language),n.hooks.run("before-insert",u),u.element.innerHTML=u.highlightedCode,n.hooks.run("after-highlight",u),n.hooks.run("complete",u),r&&r.call(t)},highlight:function(e,t,r){var l={code:e,grammar:t,language:r};return n.hooks.run("before-tokenize",l),l.tokens=n.tokenize(l.code,l.grammar),n.hooks.run("after-tokenize",l),a.stringify(n.util.encode(l.tokens),l.language)},matchGrammar:function(e,t,a,r,l,i,o){var s=n.Token;for(var u in a)if(a.hasOwnProperty(u)&&a[u]){if(u==o)return;var g=a[u];g="Array"===n.util.type(g)?g:[g];for(var c=0;c<g.length;++c){var h=g[c],f=h.inside,d=!!h.lookbehind,m=!!h.greedy,p=0,y=h.alias;if(m&&!h.pattern.global){var v=h.pattern.toString().match(/[imuy]*$/)[0];h.pattern=RegExp(h.pattern.source,v+"g")}h=h.pattern||h;for(var b=r,k=l;b<t.length;k+=t[b].length,++b){var w=t[b];if(t.length>e.length)return;if(!(w instanceof s)){if(m&&b!=t.length-1){h.lastIndex=k;var _=h.exec(e);if(!_)break;for(var j=_.index+(d?_[1].length:0),P=_.index+_[0].length,A=b,x=k,O=t.length;O>A&&(P>x||!t[A].type&&!t[A-1].greedy);++A)x+=t[A].length,j>=x&&(++b,k=x);if(t[b]instanceof s)continue;I=A-b,w=e.slice(k,x),_.index-=k}else{h.lastIndex=0;var _=h.exec(w),I=1}if(_){d&&(p=_[1]?_[1].length:0);var j=_.index+p,_=_[0].slice(p),P=j+_.length,N=w.slice(0,j),S=w.slice(P),C=[b,I];N&&(++b,k+=N.length,C.push(N));var E=new s(u,f?n.tokenize(_,f):_,y,_,m);if(C.push(E),S&&C.push(S),Array.prototype.splice.apply(t,C),1!=I&&n.matchGrammar(e,t,a,b,k,!0,u),i)break}else if(i)break}}}}},tokenize:function(e,t){var a=[e],r=t.rest;if(r){for(var l in r)t[l]=r[l];delete t.rest}return n.matchGrammar(e,a,t,0,0,!1),a},hooks:{all:{},add:function(e,t){var a=n.hooks.all;a[e]=a[e]||[],a[e].push(t)},run:function(e,t){var a=n.hooks.all[e];if(a&&a.length)for(var r,l=0;r=a[l++];)r(t)}}},a=n.Token=function(e,t,n,a,r){this.type=e,this.content=t,this.alias=n,this.length=0|(a||"").length,this.greedy=!!r};if(a.stringify=function(e,t,r){if("string"==typeof e)return e;if("Array"===n.util.type(e))return e.map(function(n){return a.stringify(n,t,e)}).join("");var l={type:e.type,content:a.stringify(e.content,t,r),tag:"span",classes:["token",e.type],attributes:{},language:t,parent:r};if(e.alias){var i="Array"===n.util.type(e.alias)?e.alias:[e.alias];Array.prototype.push.apply(l.classes,i)}n.hooks.run("wrap",l);var o=Object.keys(l.attributes).map(function(e){return e+'="'+(l.attributes[e]||"").replace(/"/g,"&quot;")+'"'}).join(" ");return"<"+l.tag+' class="'+l.classes.join(" ")+'"'+(o?" "+o:"")+">"+l.content+"</"+l.tag+">"},!_self.document)return _self.addEventListener?(n.disableWorkerMessageHandler||_self.addEventListener("message",function(e){var t=JSON.parse(e.data),a=t.language,r=t.code,l=t.immediateClose;_self.postMessage(n.highlight(r,n.languages[a],a)),l&&_self.close()},!1),_self.Prism):_self.Prism;var r=document.currentScript||[].slice.call(document.getElementsByTagName("script")).pop();return r&&(n.filename=r.src,n.manual||r.hasAttribute("data-manual")||("loading"!==document.readyState?window.requestAnimationFrame?window.requestAnimationFrame(n.highlightAll):window.setTimeout(n.highlightAll,16):document.addEventListener("DOMContentLoaded",n.highlightAll))),_self.Prism}();"undefined"!=typeof module&&module.exports&&(module.exports=Prism),"undefined"!=typeof global&&(global.Prism=Prism);
\ No newline at end of file
diff --git a/components/prism-csharp.min.js b/components/prism-csharp.min.js
index 2f53337..ceba58a 100644
--- a/components/prism-csharp.min.js
+++ b/components/prism-csharp.min.js
@@ -1 +1 @@
-Prism.languages.csharp=Prism.languages.extend("clike",{keyword:/\b(?:abstract|add|alias|as|ascending|async|await|base|bool|break|byte|case|catch|char|checked|class|const|continue|decimal|default|delegate|descending|do|double|dynamic|else|enum|event|explicit|extern|false|finally|fixed|float|for|foreach|from|get|global|goto|group|if|implicit|in|int|interface|internal|into|is|join|let|lock|long|namespace|new|null|object|operator|orderby|out|override|params|partial|private|protected|public|readonly|ref|remove|return|sbyte|sealed|select|set|short|sizeof|stackalloc|static|string|struct|switch|this|throw|true|try|typeof|uint|ulong|unchecked|unsafe|ushort|using|value|var|virtual|void|volatile|where|while|yield)\b/,string:[{pattern:/@("|')(?:\1\1|\\[\s\S]|(?!\1)[^\\])*\1/,greedy:!0},{pattern:/("|')(?:\\.|(?!\1)[^\\\r\n])*?\1/,greedy:!0}],"class-name":[{pattern:/\b[A-Z]\w*(?:\.\w+)*\b(?=\s+\w+)/,inside:{punctuation:/\./}},{pattern:/(\[)[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}},{pattern:/(\b(?:class|interface)\s+[A-Z]\w*(?:\.\w+)*\s*:\s*)[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}},{pattern:/((?:\b(?:class|interface|new)\s+)|(?:catch\s+\())[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}}],number:/\b0x[\da-f]+\b|(?:\b\d+\.?\d*|\B\.\d+)f?/i,operator:/>>=?|<<=?|[-=]>|([-+&|?])\1|~|[-+*\/%&|^!=<>]=?/,punctuation:/\?[?.]?|::|[{}[\];(),.:]/}),Prism.languages.insertBefore("csharp","class-name",{"generic-method":{pattern:/\w+\s*<[^>\r\n]+?>\s*(?=\()/,inside:{"function":/^\w+/,"class-name":{pattern:/\b[A-Z]\w*(?:\.\w+)*\b/,inside:{punctuation:/\./}},keyword:Prism.languages.csharp.keyword,punctuation:/[<>(),.:]/}},preprocessor:{pattern:/(^\s*)#.*/m,lookbehind:!0,alias:"property",inside:{directive:{pattern:/(\s*#)\b(?:define|elif|else|endif|endregion|error|if|line|pragma|region|undef|warning)\b/,lookbehind:!0,alias:"keyword"}}}}),Prism.languages.dotnet=Prism.languages.csharp;
\ No newline at end of file
+Prism.languages.csharp=Prism.languages.extend("clike",{keyword:/\b(?:abstract|add|alias|as|ascending|async|await|base|bool|break|byte|case|catch|char|checked|class|const|continue|decimal|default|delegate|descending|do|double|dynamic|else|enum|event|explicit|extern|false|finally|fixed|float|for|foreach|from|get|global|goto|group|if|implicit|in|int|interface|internal|into|is|join|let|lock|long|namespace|new|null|object|operator|orderby|out|override|params|partial|private|protected|public|readonly|ref|remove|return|sbyte|sealed|select|set|short|sizeof|stackalloc|static|string|struct|switch|this|throw|true|try|typeof|uint|ulong|unchecked|unsafe|ushort|using|value|var|virtual|void|volatile|where|while|yield)\b/,string:[{pattern:/@("|')(?:\1\1|\\[\s\S]|(?!\1)[^\\])*\1/,greedy:!0},{pattern:/("|')(?:\\.|(?!\1)[^\\\r\n])*?\1/,greedy:!0}],"class-name":[{pattern:/\b[A-Z]\w*(?:\.\w+)*\b(?=\s+\w+)/,inside:{punctuation:/\./}},{pattern:/(\[)[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}},{pattern:/(\b(?:class|interface)\s+[A-Z]\w*(?:\.\w+)*\s*:\s*)[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}},{pattern:/((?:\b(?:class|interface|new)\s+)|(?:catch\s+\())[A-Z]\w*(?:\.\w+)*\b/,lookbehind:!0,inside:{punctuation:/\./}}],number:/\b0x[\da-f]+\b|(?:\b\d+\.?\d*|\B\.\d+)f?/i,operator:/>>=?|<<=?|[-=]>|([-+&|?])\1|~|[-+*\/%&|^!=<>]=?/,punctuation:/\?\.?|::|[{}[\];(),.:]/}),Prism.languages.insertBefore("csharp","class-name",{"generic-method":{pattern:/\w+\s*<[^>\r\n]+?>\s*(?=\()/,inside:{"function":/^\w+/,"class-name":{pattern:/\b[A-Z]\w*(?:\.\w+)*\b/,inside:{punctuation:/\./}},keyword:Prism.languages.csharp.keyword,punctuation:/[<>(),.:]/}},preprocessor:{pattern:/(^\s*)#.*/m,lookbehind:!0,alias:"property",inside:{directive:{pattern:/(\s*#)\b(?:define|elif|else|endif|endregion|error|if|line|pragma|region|undef|warning)\b/,lookbehind:!0,alias:"keyword"}}}}),Prism.languages.dotnet=Prism.languages.csharp;
\ No newline at end of file
diff --git a/components/prism-jolie.js b/components/prism-jolie.js
index b092095..9cd226b 100644
--- a/components/prism-jolie.js
+++ b/components/prism-jolie.js
@@ -12,7 +12,6 @@ Prism.languages.jolie = Prism.languages.extend('clike', {
 });
 
 delete Prism.languages.jolie['class-name'];
-delete Prism.languages.jolie['function'];
 
 Prism.languages.insertBefore( 'jolie', 'keyword', {
 	'function':
diff --git a/components/prism-jolie.min.js b/components/prism-jolie.min.js
index 082cac4..9bc5c27 100644
--- a/components/prism-jolie.min.js
+++ b/components/prism-jolie.min.js
@@ -1 +1 @@
-Prism.languages.jolie=Prism.languages.extend("clike",{keyword:/\b(?:include|define|is_defined|undef|main|init|outputPort|inputPort|Location|Protocol|Interfaces|RequestResponse|OneWay|type|interface|extender|throws|cset|csets|forward|Aggregates|Redirects|embedded|courier|execution|sequential|concurrent|single|scope|install|throw|comp|cH|default|global|linkIn|linkOut|synchronized|this|new|for|if|else|while|in|Jolie|Java|Javascript|nullProcess|spawn|constants|with|provide|until|exit|foreach|instanceof|over|service)\b/,builtin:/\b(?:undefined|string|int|void|long|Byte|bool|double|float|char|any)\b/,number:/(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?l?/i,operator:/-[-=>]?|\+[+=]?|<[<=]?|[>=*!]=?|&&|\|\||[:?\/%^]/,symbol:/[|;@]/,punctuation:/[,.]/,string:{pattern:/(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,greedy:!0}}),delete Prism.languages.jolie["class-name"],delete Prism.languages.jolie["function"],Prism.languages.insertBefore("jolie","keyword",{"function":{pattern:/((?:\b(?:outputPort|inputPort|in|service|courier)\b|@)\s*)\w+/,lookbehind:!0},aggregates:{pattern:/(\bAggregates\s*:\s*)(?:\w+(?:\s+with\s+\w+)?\s*,\s*)*\w+(?:\s+with\s+\w+)?/,lookbehind:!0,inside:{withExtension:{pattern:/\bwith\s+\w+/,inside:{keyword:/\bwith\b/}},"function":{pattern:/\w+/},punctuation:{pattern:/,/}}},redirects:{pattern:/(\bRedirects\s*:\s*)(?:\w+\s*=>\s*\w+\s*,\s*)*(?:\w+\s*=>\s*\w+)/,lookbehind:!0,inside:{punctuation:{pattern:/,/},"function":{pattern:/\w+/},symbol:{pattern:/=>/}}}});
\ No newline at end of file
+Prism.languages.jolie=Prism.languages.extend("clike",{keyword:/\b(?:include|define|is_defined|undef|main|init|outputPort|inputPort|Location|Protocol|Interfaces|RequestResponse|OneWay|type|interface|extender|throws|cset|csets|forward|Aggregates|Redirects|embedded|courier|execution|sequential|concurrent|single|scope|install|throw|comp|cH|default|global|linkIn|linkOut|synchronized|this|new|for|if|else|while|in|Jolie|Java|Javascript|nullProcess|spawn|constants|with|provide|until|exit|foreach|instanceof|over|service)\b/,builtin:/\b(?:undefined|string|int|void|long|Byte|bool|double|float|char|any)\b/,number:/(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?l?/i,operator:/-[-=>]?|\+[+=]?|<[<=]?|[>=*!]=?|&&|\|\||[:?\/%^]/,symbol:/[|;@]/,punctuation:/[,.]/,string:{pattern:/(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,greedy:!0}}),delete Prism.languages.jolie["class-name"],Prism.languages.insertBefore("jolie","keyword",{"function":{pattern:/((?:\b(?:outputPort|inputPort|in|service|courier)\b|@)\s*)\w+/,lookbehind:!0},aggregates:{pattern:/(\bAggregates\s*:\s*)(?:\w+(?:\s+with\s+\w+)?\s*,\s*)*\w+(?:\s+with\s+\w+)?/,lookbehind:!0,inside:{withExtension:{pattern:/\bwith\s+\w+/,inside:{keyword:/\bwith\b/}},"function":{pattern:/\w+/},punctuation:{pattern:/,/}}},redirects:{pattern:/(\bRedirects\s*:\s*)(?:\w+\s*=>\s*\w+\s*,\s*)*(?:\w+\s*=>\s*\w+)/,lookbehind:!0,inside:{punctuation:{pattern:/,/},"function":{pattern:/\w+/},symbol:{pattern:/=>/}}}});
\ No newline at end of file
diff --git a/components/prism-sass.js b/components/prism-sass.js
index f170830..64f2013 100644
--- a/components/prism-sass.js
+++ b/components/prism-sass.js
@@ -62,7 +62,6 @@
 
 	// Now that whole lines for other patterns are consumed,
 	// what's left should be selectors
-	delete Prism.languages.sass.selector;
 	Prism.languages.insertBefore('sass', 'punctuation', {
 		'selector': {
 			pattern: /([ \t]*)\S(?:,?[^,\r\n]+)*(?:,(?:\r?\n|\r)\1[ \t]+\S(?:,?[^,\r\n]+)*)*/,
diff --git a/components/prism-sass.min.js b/components/prism-sass.min.js
index 3544aab..c4601d2 100644
--- a/components/prism-sass.min.js
+++ b/components/prism-sass.min.js
@@ -1 +1 @@
-!function(e){e.languages.sass=e.languages.extend("css",{comment:{pattern:/^([ \t]*)\/[\/*].*(?:(?:\r?\n|\r)\1[ \t]+.+)*/m,lookbehind:!0}}),e.languages.insertBefore("sass","atrule",{"atrule-line":{pattern:/^(?:[ \t]*)[@+=].+/m,inside:{atrule:/(?:@[\w-]+|[+=])/m}}}),delete e.languages.sass.atrule;var a=/\$[-\w]+|#\{\$[-\w]+\}/,t=[/[+*\/%]|[=!]=|<=?|>=?|\b(?:and|or|not)\b/,{pattern:/(\s+)-(?=\s)/,lookbehind:!0}];e.languages.insertBefore("sass","property",{"variable-line":{pattern:/^[ \t]*\$.+/m,inside:{punctuation:/:/,variable:a,operator:t}},"property-line":{pattern:/^[ \t]*(?:[^:\s]+ *:.*|:[^:\s]+.*)/m,inside:{property:[/[^:\s]+(?=\s*:)/,{pattern:/(:)[^:\s]+/,lookbehind:!0}],punctuation:/:/,variable:a,operator:t,important:e.languages.sass.important}}}),delete e.languages.sass.property,delete e.languages.sass.important,delete e.languages.sass.selector,e.languages.insertBefore("sass","punctuation",{selector:{pattern:/([ \t]*)\S(?:,?[^,\r\n]+)*(?:,(?:\r?\n|\r)\1[ \t]+\S(?:,?[^,\r\n]+)*)*/,lookbehind:!0}})}(Prism);
\ No newline at end of file
+!function(e){e.languages.sass=e.languages.extend("css",{comment:{pattern:/^([ \t]*)\/[\/*].*(?:(?:\r?\n|\r)\1[ \t]+.+)*/m,lookbehind:!0}}),e.languages.insertBefore("sass","atrule",{"atrule-line":{pattern:/^(?:[ \t]*)[@+=].+/m,inside:{atrule:/(?:@[\w-]+|[+=])/m}}}),delete e.languages.sass.atrule;var t=/\$[-\w]+|#\{\$[-\w]+\}/,a=[/[+*\/%]|[=!]=|<=?|>=?|\b(?:and|or|not)\b/,{pattern:/(\s+)-(?=\s)/,lookbehind:!0}];e.languages.insertBefore("sass","property",{"variable-line":{pattern:/^[ \t]*\$.+/m,inside:{punctuation:/:/,variable:t,operator:a}},"property-line":{pattern:/^[ \t]*(?:[^:\s]+ *:.*|:[^:\s]+.*)/m,inside:{property:[/[^:\s]+(?=\s*:)/,{pattern:/(:)[^:\s]+/,lookbehind:!0}],punctuation:/:/,variable:t,operator:a,important:e.languages.sass.important}}}),delete e.languages.sass.property,delete e.languages.sass.important,e.languages.insertBefore("sass","punctuation",{selector:{pattern:/([ \t]*)\S(?:,?[^,\r\n]+)*(?:,(?:\r?\n|\r)\1[ \t]+\S(?:,?[^,\r\n]+)*)*/,lookbehind:!0}})}(Prism);
\ No newline at end of file
diff --git a/components/prism-tt2.js b/components/prism-tt2.js
index 4a92154..ef94320 100644
--- a/components/prism-tt2.js
+++ b/components/prism-tt2.js
@@ -9,8 +9,6 @@
 		punctuation: /[[\]{},()]/
 	});
 
-	delete Prism.languages.tt2['operator'];
-	delete Prism.languages.tt2['variable'];
 	Prism.languages.insertBefore('tt2', 'number', {
 		operator: /=[>=]?|!=?|<=?|>=?|&&|\|\|?|\b(?:and|or|not)\b/,
 		variable: {
@@ -18,7 +16,6 @@
 		}
 	});
 
-	delete Prism.languages.tt2['delimiter'];
 	Prism.languages.insertBefore('tt2', 'keyword', {
 		'delimiter': {
 			pattern: /^(?:\[%|%%)-?|-?%]$/,
diff --git a/components/prism-tt2.min.js b/components/prism-tt2.min.js
index f817316..34aaad2 100644
--- a/components/prism-tt2.min.js
+++ b/components/prism-tt2.min.js
@@ -1 +1 @@
-!function(e){e.languages.tt2=e.languages.extend("clike",{comment:{pattern:/#.*|\[%#[\s\S]*?%\]/,lookbehind:!0},keyword:/\b(?:BLOCK|CALL|CASE|CATCH|CLEAR|DEBUG|DEFAULT|ELSE|ELSIF|END|FILTER|FINAL|FOREACH|GET|IF|IN|INCLUDE|INSERT|LAST|MACRO|META|NEXT|PERL|PROCESS|RAWPERL|RETURN|SET|STOP|TAGS|THROW|TRY|SWITCH|UNLESS|USE|WHILE|WRAPPER)\b/,punctuation:/[[\]{},()]/}),delete e.languages.tt2.operator,delete e.languages.tt2.variable,e.languages.insertBefore("tt2","number",{operator:/=[>=]?|!=?|<=?|>=?|&&|\|\|?|\b(?:and|or|not)\b/,variable:{pattern:/[a-z]\w*(?:\s*\.\s*(?:\d+|\$?[a-z]\w*))*/i}}),delete e.languages.tt2.delimiter,e.languages.insertBefore("tt2","keyword",{delimiter:{pattern:/^(?:\[%|%%)-?|-?%]$/,alias:"punctuation"}}),e.languages.insertBefore("tt2","string",{"single-quoted-string":{pattern:/'[^\\']*(?:\\[\s\S][^\\']*)*'/,greedy:!0,alias:"string"},"double-quoted-string":{pattern:/"[^\\"]*(?:\\[\s\S][^\\"]*)*"/,greedy:!0,alias:"string",inside:{variable:{pattern:/\$(?:[a-z]\w*(?:\.(?:\d+|\$?[a-z]\w*))*)/i}}}}),delete e.languages.tt2.string,e.hooks.add("before-tokenize",function(t){var a=/\[%[\s\S]+?%\]/g;e.languages["markup-templating"].buildPlaceholders(t,"tt2",a)}),e.hooks.add("after-tokenize",function(t){e.languages["markup-templating"].tokenizePlaceholders(t,"tt2")})}(Prism);
\ No newline at end of file
+!function(e){e.languages.tt2=e.languages.extend("clike",{comment:{pattern:/#.*|\[%#[\s\S]*?%\]/,lookbehind:!0},keyword:/\b(?:BLOCK|CALL|CASE|CATCH|CLEAR|DEBUG|DEFAULT|ELSE|ELSIF|END|FILTER|FINAL|FOREACH|GET|IF|IN|INCLUDE|INSERT|LAST|MACRO|META|NEXT|PERL|PROCESS|RAWPERL|RETURN|SET|STOP|TAGS|THROW|TRY|SWITCH|UNLESS|USE|WHILE|WRAPPER)\b/,punctuation:/[[\]{},()]/}),e.languages.insertBefore("tt2","number",{operator:/=[>=]?|!=?|<=?|>=?|&&|\|\|?|\b(?:and|or|not)\b/,variable:{pattern:/[a-z]\w*(?:\s*\.\s*(?:\d+|\$?[a-z]\w*))*/i}}),e.languages.insertBefore("tt2","keyword",{delimiter:{pattern:/^(?:\[%|%%)-?|-?%]$/,alias:"punctuation"}}),e.languages.insertBefore("tt2","string",{"single-quoted-string":{pattern:/'[^\\']*(?:\\[\s\S][^\\']*)*'/,greedy:!0,alias:"string"},"double-quoted-string":{pattern:/"[^\\"]*(?:\\[\s\S][^\\"]*)*"/,greedy:!0,alias:"string",inside:{variable:{pattern:/\$(?:[a-z]\w*(?:\.(?:\d+|\$?[a-z]\w*))*)/i}}}}),delete e.languages.tt2.string,e.hooks.add("before-tokenize",function(t){var a=/\[%[\s\S]+?%\]/g;e.languages["markup-templating"].buildPlaceholders(t,"tt2",a)}),e.hooks.add("after-tokenize",function(t){e.languages["markup-templating"].tokenizePlaceholders(t,"tt2")})}(Prism);
\ No newline at end of file
diff --git a/prism.js b/prism.js
index 88c331e..9e8aa53 100644
--- a/prism.js
+++ b/prism.js
@@ -101,7 +101,7 @@ var _ = _self.Prism = {
 		/**
 		 * Insert a token before another token in a language literal
 		 * As this needs to recreate the object (we cannot actually insert before keys in object literals),
-		 * we cannot just provide an object, we need anobject and a key.
+		 * we cannot just provide an object, we need an object and a key.
 		 * @param inside The key (or language id) of the parent
 		 * @param before The key to insert before.
 		 * @param insert Object with the key/value pairs to insert
@@ -113,20 +113,20 @@ var _ = _self.Prism = {
 			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];
+					// Do not insert token which also occur in insert. See #1525
+					if (!insert.hasOwnProperty(token)) {
+						ret[token] = grammar[token];
+					}
 				}
 			}