clean up regionExtractor to hoist nullLine pattern,

add examplesDir to xref info

public/doc-shredder/regionExtractor.js

@@ -1,4 +1,8 @@
 module.exports = function regionExtractor() {
+
+  var nullLine = '###';
+  var nullLinePattern = new RegExp(nullLine + '\n', 'g');
+
   // split out each fragment in {content} into a separate doc
   // a fragment is a section of text surrounded by
   //   1) In front: a comment marker followed by '#docregion' followed by an optional region name. For example:
@@ -12,7 +16,6 @@ module.exports = function regionExtractor() {
     var docs = [];
     var docStack = [];
     var doc = null;
-    var nullLine = '###';
 
     lines.forEach(function(line, ix) {
       if (isCommentLine(line, commentPrefixes)) {
@@ -29,7 +32,7 @@ module.exports = function regionExtractor() {
       }
     });
 
-    var rx = new RegExp(nullLine + '\n', 'g');
+
     docs.forEach(function(doc) {
       var content;
       if (doc.endIx) {
@@ -38,7 +41,7 @@ module.exports = function regionExtractor() {
         content = lines.slice(doc.startIx + 1).join('\n');
       }
       // eliminate all #docregion lines
-      content = content.replace(rx, '');
+      content = content.replace(nullLinePattern, '');
       if (content.substr(-3) === nullLine) {
         content = content.substr(0, content.length-3);
       }

public/doc-shredder/shredMapProcessor.js

@@ -15,12 +15,15 @@ module.exports = function shredMapProcessor(log) {
       var options = this.options;
       var jadeToFragMap = {};
       var fragToJadeMap = {};
+
       docs.forEach(function(doc) {
         var jadePath = path.join(options.jadeDir, doc.fileInfo.relativePath);
         var fragInfos = doc.fragPaths.map(function(fragPath) {
-          fragPath =  path.join(options.fragmentsDir, fragPath) + '.md';
+          var relativeFragPath =  path.join(options.fragmentsDir, fragPath) + '.md';
-          var fullPath = path.join(options.basePath, fragPath);
+          var fullPath = path.join(options.basePath, relativeFragPath);
-          var fragInfo = { fragPath: fragPath, exists: fs.existsSync(fullPath) };
+          var examplePath = getExampleName(fragPath);
+          var relativeExamplePath = path.join(options.examplesDir, examplePath);
+          var fragInfo = { fragPath: relativeFragPath, examplePath: relativeExamplePath, exists: fs.existsSync(fullPath) };
           if (fragInfo.exists) {
             var jadePaths = fragToJadeMap[fragInfo];
             if (!jadePaths) {
@@ -55,3 +58,14 @@ module.exports = function shredMapProcessor(log) {
     }
   };
 };
+
+function getExampleName(fragPath) {
+  // pattern to isolate base fileName and extension from fragment name
+  var rx = /(.*)\-(.*)\.(.s)/;
+  var r = rx.exec(fragPath);
+  if (r) {
+    return r[1] + '.' + r[3];
+  } else {
+    return fragPath;
+  }
+}

public/doc-shredder/test/xref-frag-to-jade.html

@@ -4,7 +4,7 @@
 <ol>
      
     <li>
-        Fragment file: <strong>test_fragments/gettingstarted/ts/index.html.md</strong>
+        Fragment file: <strong>gettingstarted/ts/index.html</strong>
         <p>Jade files</p>
         <ul>
             <li>test_jade/guides/setupAlt2.jade</li>
@@ -12,7 +12,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>test_fragments/gettingstarted/js/index.html.md</strong>
+        Fragment file: <strong>gettingstarted/js/index.html</strong>
         <p>Jade files</p>
         <ul>
             <li>test_jade/setupAlt.jade</li>
@@ -20,7 +20,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>test_fragments/gettingstarted/ts/main.ts.md</strong>
+        Fragment file: <strong>gettingstarted/ts/main.ts</strong>
         <p>Jade files</p>
         <ul>
             <li>test_jade/setupAlt.jade</li>
@@ -28,7 +28,15 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>test_fragments/gettingstarted/ts/main-import.ts.md</strong>
+        Fragment file: <strong>gettingstarted/js/main.js</strong>
+        <p>Jade files</p>
+        <ul>
+            <li>test_jade/guides/setupAlt2.jade</li>
+        </ul>
+        <br>
+    </li>
+    <li>
+        Fragment file: <strong>gettingstarted/ts/main-import.ts</strong>
         <p>Jade files</p>
         <ul>
             <li>test_jade/setupAlt.jade</li>

public/doc-shredder/test/xref-jade-to-frag.html

@@ -6,14 +6,14 @@
     <li>
         Jade file: <strong>test_jade/guides/setupAlt2.jade</strong>
         <p>Fragment files</p>
-        <ul><li>test_fragments/gettingstarted/ts/index.html.md</li><li>test_fragments/gettingstarted/js/index.html.md</li><li>test_fragments/gettingstarted/ts/main.ts.md</li><li> *** NOT FOUND*** : test_fragments/gettingstarted/ js/main.js.md</li><li>test_fragments/gettingstarted/ts/main-import.ts.md</li>
+        <ul><li>test_fragments/gettingstarted/ts/index.html.md</li><li>test_fragments/gettingstarted/js/index.html.md</li><li>test_fragments/gettingstarted/ts/main.ts.md</li><li>test_fragments/gettingstarted/js/main.js.md</li><li>test_fragments/gettingstarted/ts/main-import.ts.md</li>
         </ul>
         <br>
     </li>
     <li>
         Jade file: <strong>test_jade/setupAlt.jade</strong>
         <p>Fragment files</p>
-        <ul><li> *** NOT FOUND*** : test_fragments/gettingstarted/ts/index2.html.md</li><li>test_fragments/gettingstarted/js/index.html.md</li><li>test_fragments/gettingstarted/ts/main.ts.md</li><li> *** NOT FOUND*** : test_fragments/gettingstarted/ js/main2.js.md</li><li>test_fragments/gettingstarted/ts/main-import.ts.md</li>
+        <ul><li> *** NOT FOUND*** : test_fragments/gettingstarted/ts/index2.html.md</li><li>test_fragments/gettingstarted/js/index.html.md</li><li>test_fragments/gettingstarted/ts/main.ts.md</li><li> *** NOT FOUND*** : test_fragments/gettingstarted/js/main2.js.md</li><li>test_fragments/gettingstarted/ts/main-import.ts.md</li>
         </ul>
         <br>
     </li>

public/doc-shredder/test/xref-jade.json

@@ -1,46 +1,59 @@
 {
+  "basePath": "c:/GitHub/angular.io.ideablade/public/doc-shredder/test",
+  "jadeToFragMap": {
     "test_jade/guides/setupAlt2.jade": [
       {
         "fragPath": "test_fragments/gettingstarted/ts/index.html.md",
+        "examplePath": "test_source/gettingstarted/ts/index.html",
         "exists": true
       },
       {
         "fragPath": "test_fragments/gettingstarted/js/index.html.md",
+        "examplePath": "test_source/gettingstarted/js/index.html",
         "exists": true
       },
       {
         "fragPath": "test_fragments/gettingstarted/ts/main.ts.md",
+        "examplePath": "test_source/gettingstarted/ts/main.ts",
         "exists": true
       },
       {
-      "fragPath": "test_fragments/gettingstarted/ js/main.js.md",
+        "fragPath": "test_fragments/gettingstarted/js/main.js.md",
-      "exists": false
+        "examplePath": "test_source/gettingstarted/js/main.js",
+        "exists": true
       },
       {
         "fragPath": "test_fragments/gettingstarted/ts/main-import.ts.md",
+        "examplePath": "test_source/gettingstarted/ts/main.ts",
         "exists": true
       }
     ],
     "test_jade/setupAlt.jade": [
       {
         "fragPath": "test_fragments/gettingstarted/ts/index2.html.md",
+        "examplePath": "test_source/gettingstarted/ts/index2.html",
         "exists": false
       },
       {
         "fragPath": "test_fragments/gettingstarted/js/index.html.md",
+        "examplePath": "test_source/gettingstarted/js/index.html",
         "exists": true
       },
       {
         "fragPath": "test_fragments/gettingstarted/ts/main.ts.md",
+        "examplePath": "test_source/gettingstarted/ts/main.ts",
         "exists": true
       },
       {
-      "fragPath": "test_fragments/gettingstarted/ js/main2.js.md",
+        "fragPath": "test_fragments/gettingstarted/js/main2.js.md",
+        "examplePath": "test_source/gettingstarted/js/main2.js",
         "exists": false
       },
       {
         "fragPath": "test_fragments/gettingstarted/ts/main-import.ts.md",
+        "examplePath": "test_source/gettingstarted/ts/main.ts",
         "exists": true
       }
     ]
+  }
 }

public/docs/xref-frag-to-jade.html

@@ -1,10 +1,10 @@
 <h1> Frament path to jade path cross reference report
 
-<p>Base path: c:\GitHub\angular.io.ideablade\public\docs</p>
+<p>Base path: C:\GitHub\angular.io.ideablade\public\docs</p>
 <ol>
      
     <li>
-        Fragment file: <strong>_fragments/gettingstarted/ts/index.html.md</strong>
+        Fragment file: <strong>gettingstarted/ts/index.html</strong>
         <p>Jade files</p>
         <ul>
             <li>js/latest/guide/setupAlt.jade</li>
@@ -12,7 +12,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>_fragments/gettingstarted/js/index.html.md</strong>
+        Fragment file: <strong>gettingstarted/js/index.html</strong>
         <p>Jade files</p>
         <ul>
             <li>js/latest/guide/setupAlt.jade</li>
@@ -20,7 +20,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>_fragments/gettingstarted/ts/main.ts.md</strong>
+        Fragment file: <strong>gettingstarted/ts/main.ts</strong>
         <p>Jade files</p>
         <ul>
             <li>js/latest/guide/setupAlt.jade</li>
@@ -28,7 +28,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>_fragments/gettingstarted/js/main.js.md</strong>
+        Fragment file: <strong>gettingstarted/js/main.js</strong>
         <p>Jade files</p>
         <ul>
             <li>js/latest/guide/setupAlt.jade</li>
@@ -36,7 +36,7 @@
         <br>
     </li>
     <li>
-        Fragment file: <strong>_fragments/gettingstarted/ts/main-import.ts.md</strong>
+        Fragment file: <strong>gettingstarted/ts/main-import.ts</strong>
         <p>Jade files</p>
         <ul>
             <li>js/latest/guide/setupAlt.jade</li>

public/docs/xref-jade-to-frag.html

@@ -1,6 +1,6 @@
 <h1> Jade path to fragment path cross reference report
 
-<p>Base path: c:\GitHub\angular.io.ideablade\public\docs</p>
+<p>Base path: C:\GitHub\angular.io.ideablade\public\docs</p>
 <ol>
      
     <li>

public/docs/xref-jade.json

@@ -1,25 +1,30 @@
 {
-  "basePath": "c:\\GitHub\\angular.io.ideablade\\public\\docs",
+  "basePath": "C:\\GitHub\\angular.io.ideablade\\public\\docs",
   "jadeToFragMap": {
     "js/latest/guide/setupAlt.jade": [
       {
         "fragPath": "_fragments/gettingstarted/ts/index.html.md",
+        "examplePath": "_examples/gettingstarted/ts/index.html",
         "exists": true
       },
       {
         "fragPath": "_fragments/gettingstarted/js/index.html.md",
+        "examplePath": "_examples/gettingstarted/js/index.html",
         "exists": true
       },
       {
         "fragPath": "_fragments/gettingstarted/ts/main.ts.md",
+        "examplePath": "_examples/gettingstarted/ts/main.ts",
         "exists": true
       },
       {
         "fragPath": "_fragments/gettingstarted/js/main.js.md",
+        "examplePath": "_examples/gettingstarted/js/main.js",
         "exists": true
       },
       {
         "fragPath": "_fragments/gettingstarted/ts/main-import.ts.md",
+        "examplePath": "_examples/gettingstarted/ts/main.ts",
         "exists": true
       }
     ]