Add ability to linkify substituted string

third_party/WebKit/Source/devtools/front_end/components/Linkifier.js

Index: third_party/WebKit/Source/devtools/front_end/components/Linkifier.js
diff --git a/third_party/WebKit/Source/devtools/front_end/components/Linkifier.js b/third_party/WebKit/Source/devtools/front_end/components/Linkifier.js
index 4926fac9712de8b707479812097b27abdee2146e..6a41efe8a9fb587df05ddc4a78de9c36b2379845 100644
--- a/third_party/WebKit/Source/devtools/front_end/components/Linkifier.js
+++ b/third_party/WebKit/Source/devtools/front_end/components/Linkifier.js
@@ -593,16 +593,65 @@ Components.LinkDecorator.Events = {
 /**
  * @param {string} string
  * @param {function(string,string,number=,number=):!Node} linkifier
- * @return {!DocumentFragment}
+ * @return {?Node}
  */
-Components.linkifyStringAsFragmentWithCustomLinkifier = function(string, linkifier) {
-  var container = createDocumentFragment();
+Components.Linkifier.getLinkNodeWithCustomLinkifier = function(string, linkifier) {
+  var linkString = Components.Linkifier.getLinkString(string);
+  if (!linkString || linkString[0] !== string)
+    return null;
+
+  var title = string;
+  var realURL = (string.startsWith('www.') ? 'http://' + string : string);
+  var splitResult = Common.ParsedURL.splitLineAndColumn(realURL);
+  var linkNode;
+  if (splitResult)
+    linkNode = linkifier(title, splitResult.url, splitResult.lineNumber, splitResult.columnNumber);
+  else
+    linkNode = linkifier(title, realURL);
+
+  return linkNode;
+};
+
+/**
+ * @param {string} string
+ * @return {?Node}
+ */
+Components.Linkifier.getLinkNode = function(string) {
+  /**
+   * @param {string} title
+   * @param {string} url
+   * @param {number=} lineNumber
+   * @param {number=} columnNumber
+   * @return {!Node}
+   */
+  function linkifier(title, url, lineNumber, columnNumber) {
+    return Components.Linkifier.linkifyURL(url, title, undefined, lineNumber, columnNumber);
+  }
+
+  return Components.Linkifier.getLinkNodeWithCustomLinkifier(string, linkifier);
+};
+
+/**
+ * @param {string} string
+ * @return {?Array|{index:number, input:string}}

[luoe, 2016/12/13 00:08:27]

This annotation looks like an Array OR an Object, but it seems like exec()
returns just a nullable Array.  It looks like we only ever use the [0] item in
the array, if it exists.

Maybe we can have this function return linkStringRegEx.exec(string)[0] or
pathLineRegex.exec(string)[0] if it can?  Then the closure return annotation can
just be ?string

+ */
+Components.Linkifier.getLinkString = function(string) {
   var linkStringRegEx =
       /(?:[a-zA-Z][a-zA-Z0-9+.-]{2,}:\/\/|data:|www\.)[\w$\-_+*'=\|\/\\(){}[\]^%@&#~,:;.!?]{2,}[\w$\-_+*=\|\/\\({^%@&#~]/;
   var pathLineRegex = /(?:\/[\w\.-]*)+\:[\d]+/;
+  return linkStringRegEx.exec(string) || pathLineRegex.exec(string);
+};
+
+/**
+ * @param {string} string
+ * @param {function(string,string,number=,number=):!Node} linkifier
+ * @return {!DocumentFragment}
+ */
+Components.linkifyStringAsFragmentWithCustomLinkifier = function(string, linkifier) {
+  var container = createDocumentFragment();
 
   while (string && string.length < Components.Linkifier.MaxLengthToIgnoreLinkifier) {
-    var linkString = linkStringRegEx.exec(string) || pathLineRegex.exec(string);
+    var linkString = Components.Linkifier.getLinkString(string);
     if (!linkString)
       break;
 
@@ -611,14 +660,7 @@ Components.linkifyStringAsFragmentWithCustomLinkifier = function(string, linkifi
     var nonLink = string.substring(0, linkIndex);
     container.appendChild(createTextNode(nonLink));
 
-    var title = linkString;
-    var realURL = (linkString.startsWith('www.') ? 'http://' + linkString : linkString);
-    var splitResult = Common.ParsedURL.splitLineAndColumn(realURL);
-    var linkNode;
-    if (splitResult)
-      linkNode = linkifier(title, splitResult.url, splitResult.lineNumber, splitResult.columnNumber);
-    else
-      linkNode = linkifier(title, realURL);
+    var linkNode = Components.Linkifier.getLinkNodeWithCustomLinkifier(linkString, linkifier);
 
     container.appendChild(linkNode);
     string = string.substring(linkIndex + linkString.length, string.length);