Core: Fixed greedy rematching reach bug (#2705)
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diff --git a/components/prism-core.js b/components/prism-core.js
index 29a7952..acc60d6 100644
--- a/components/prism-core.js
+++ b/components/prism-core.js
@@ -984,10 +984,18 @@ function matchGrammar(text, tokenList, grammar, startNode, startPos, rematch) {
if (removeCount > 1) {
// at least one Token object was removed, so we have to do some rematching
// this can only happen if the current pattern is greedy
- matchGrammar(text, tokenList, grammar, currentNode.prev, pos, {
+
+ /** @type {RematchOptions} */
+ var nestedRematch = {
cause: token + ',' + j,
reach: reach
- });
+ };
+ matchGrammar(text, tokenList, grammar, currentNode.prev, pos, nestedRematch);
+
+ // the reach might have been extended because of the rematching
+ if (rematch && nestedRematch.reach > rematch.reach) {
+ rematch.reach = nestedRematch.reach;
+ }
}
}
}
diff --git a/components/prism-core.min.js b/components/prism-core.min.js
index 89173b8..38bfc4e 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(u){var c=/\blang(?:uage)?-([\w-]+)\b/i,n=0,_={manual:u.Prism&&u.Prism.manual,disableWorkerMessageHandler:u.Prism&&u.Prism.disableWorkerMessageHandler,util:{encode:function e(n){return n instanceof M?new M(n.type,e(n.content),n.alias):Array.isArray(n)?n.map(e):n.replace(/&/g,"&").replace(/</g,"<").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:++n}),e.__id},clone:function t(e,r){var a,n;switch(r=r||{},_.util.type(e)){case"Object":if(n=_.util.objId(e),r[n])return r[n];for(var i in a={},r[n]=a,e)e.hasOwnProperty(i)&&(a[i]=t(e[i],r));return a;case"Array":return n=_.util.objId(e),r[n]?r[n]:(a=[],r[n]=a,e.forEach(function(e,n){a[n]=t(e,r)}),a);default:return 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\ No newline at end of file
+var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(u){var c=/\blang(?:uage)?-([\w-]+)\b/i,n=0,M={manual:u.Prism&&u.Prism.manual,disableWorkerMessageHandler:u.Prism&&u.Prism.disableWorkerMessageHandler,util:{encode:function e(n){return n instanceof W?new W(n.type,e(n.content),n.alias):Array.isArray(n)?n.map(e):n.replace(/&/g,"&").replace(/</g,"<").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:++n}),e.__id},clone:function r(e,t){var a,n;switch(t=t||{},M.util.type(e)){case"Object":if(n=M.util.objId(e),t[n])return t[n];for(var i in a={},t[n]=a,e)e.hasOwnProperty(i)&&(a[i]=r(e[i],t));return a;case"Array":return n=M.util.objId(e),t[n]?t[n]:(a=[],t[n]=a,e.forEach(function(e,n){a[n]=r(e,t)}),a);default:return 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\ No newline at end of file
diff --git a/docs/global.html b/docs/global.html
index 4838a92..c71bc32 100644
--- a/docs/global.html
+++ b/docs/global.html
@@ -143,7 +143,7 @@
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
- <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1171">line 1171</a>
+ <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1179">line 1179</a>
</li></ul></dd>
@@ -274,7 +274,7 @@
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
- <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1150">line 1150</a>
+ <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1158">line 1158</a>
</li></ul></dd>
@@ -559,7 +559,7 @@ each another.</p></td>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
- <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1179">line 1179</a>
+ <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1187">line 1187</a>
</li></ul></dd>
@@ -713,7 +713,7 @@ each another.</p></td>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
- <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1189">line 1189</a>
+ <a href="prism-core.js.html">prism-core.js</a>, <a href="prism-core.js.html#line1197">line 1197</a>
</li></ul></dd>
diff --git a/docs/prism-core.js.html b/docs/prism-core.js.html
index ed5112a..f17df7f 100644
--- a/docs/prism-core.js.html
+++ b/docs/prism-core.js.html
@@ -1037,10 +1037,18 @@ function matchGrammar(text, tokenList, grammar, startNode, startPos, rematch) {
if (removeCount > 1) {
// at least one Token object was removed, so we have to do some rematching
// this can only happen if the current pattern is greedy
- matchGrammar(text, tokenList, grammar, currentNode.prev, pos, {
+
+ /** @type {RematchOptions} */
+ var nestedRematch = {
cause: token + ',' + j,
reach: reach
- });
+ };
+ matchGrammar(text, tokenList, grammar, currentNode.prev, pos, nestedRematch);
+
+ // the reach might have been extended because of the rematching
+ if (rematch && nestedRematch.reach > rematch.reach) {
+ rematch.reach = nestedRematch.reach;
+ }
}
}
}
diff --git a/prism.js b/prism.js
index 0368850..fdc707a 100644
--- a/prism.js
+++ b/prism.js
@@ -989,10 +989,18 @@ function matchGrammar(text, tokenList, grammar, startNode, startPos, rematch) {
if (removeCount > 1) {
// at least one Token object was removed, so we have to do some rematching
// this can only happen if the current pattern is greedy
- matchGrammar(text, tokenList, grammar, currentNode.prev, pos, {
+
+ /** @type {RematchOptions} */
+ var nestedRematch = {
cause: token + ',' + j,
reach: reach
- });
+ };
+ matchGrammar(text, tokenList, grammar, currentNode.prev, pos, nestedRematch);
+
+ // the reach might have been extended because of the rematching
+ if (rematch && nestedRematch.reach > rematch.reach) {
+ rematch.reach = nestedRematch.reach;
+ }
}
}
}
diff --git a/tests/languages/javascript/issue2694.test b/tests/languages/javascript/issue2694.test
new file mode 100644
index 0000000..53c06c9
--- /dev/null
+++ b/tests/languages/javascript/issue2694.test
@@ -0,0 +1,70 @@
+replace(/'/, `'`)
+
+const var1 = `this is fine`;
+const var2 = `this is fine`;
+
+// `load bearing comment`
+
+const var3 = `break starts here`;
+const var4 = `break ends here`;
+
+----------------------------------------------------
+
+[
+ ["function", "replace"],
+ ["punctuation", "("],
+ ["regex", [
+ ["regex-delimiter", "/"],
+ ["regex-source", "'"],
+ ["regex-delimiter", "/"]
+ ]],
+ ["punctuation", ","],
+ ["template-string", [
+ ["template-punctuation", "`"],
+ ["string", "'"],
+ ["template-punctuation", "`"]
+ ]],
+ ["punctuation", ")"],
+
+ ["keyword", "const"],
+ " var1 ",
+ ["operator", "="],
+ ["template-string", [
+ ["template-punctuation", "`"],
+ ["string", "this is fine"],
+ ["template-punctuation", "`"]
+ ]],
+ ["punctuation", ";"],
+
+ ["keyword", "const"],
+ " var2 ",
+ ["operator", "="],
+ ["template-string", [
+ ["template-punctuation", "`"],
+ ["string", "this is fine"],
+ ["template-punctuation", "`"]
+ ]],
+ ["punctuation", ";"],
+
+ ["comment", "// `load bearing comment`"],
+
+ ["keyword", "const"],
+ " var3 ",
+ ["operator", "="],
+ ["template-string", [
+ ["template-punctuation", "`"],
+ ["string", "break starts here"],
+ ["template-punctuation", "`"]
+ ]],
+ ["punctuation", ";"],
+
+ ["keyword", "const"],
+ " var4 ",
+ ["operator", "="],
+ ["template-string", [
+ ["template-punctuation", "`"],
+ ["string", "break ends here"],
+ ["template-punctuation", "`"]
+ ]],
+ ["punctuation", ";"]
+]
\ No newline at end of file