Require "x" flag in util.regexp for "extended" regex processing.

common/modules/commands.jsm

@@ -1095,7 +1095,7 @@ var Commands = Module("commands", {
                 <forbid>
             ]
             [^ <forbid> ]*
-        ]]>, "g", {
+        ]]>, "gx", {
         forbid: util.regexp(String.replace(<![CDATA[
             U0000-U002c // U002d -
             U002e-U002f
@@ -1119,7 +1119,7 @@ var Commands = Module("commands", {
             Ufe70-Ufeff // Arabic Presentation Forms-B
             Uff00-Uffef // Halfwidth and Fullwidth Forms
             Ufff0-Uffff // Specials
-        ]]>, /U/g, "\\u"))
+        ]]>, /U/g, "\\u"), "x")
     }),
 
     validName: Class.memoize(function () util.regexp("^" + this.nameRegexp.source + "$")),
@@ -1137,7 +1137,7 @@ var Commands = Module("commands", {
                 (?:. | \n)*?
             )?
             $
-        ]]>, "", {
+        ]]>, "x", {
             name: this.nameRegexp
         })),
 

common/modules/highlight.jsm

@@ -224,7 +224,7 @@ var Highlights = Module("Highlight", {
         \{ ([^}]*) \}
         \s*
         $
-    ]]>, "gm"),
+    ]]>, "gmx"),
     sheetRegexp: util.regexp(<![CDATA[
         ^\s*
         !? \*?
@@ -234,7 +234,7 @@ var Highlights = Module("Highlight", {
         (?:; (?P<extends>  (?:[^;\s]|\s[^;\s])+ )? )?
         \s*  (?P<css>      .*)
         $
-    ]]>),
+    ]]>, "x"),
 
     /**
      * Bulk loads new CSS rules, in the format of,

common/modules/io.jsm

@@ -966,7 +966,7 @@ unlet s:cpo_save
                 )
                 (?P<path> \/[^\/]* )?
                 $
-            ]]>).exec(context.filter);
+            ]]>, "x").exec(context.filter);
             if (match) {
                 if (!match.path) {
                     context.key = match.proto;

common/modules/styles.jsm

@@ -473,7 +473,7 @@ var Styles = Module("Styles", {
                 )?
             )
             (?P<postSpace> <space>* (?: ; | $) )
-        ]]>, "gi",
+        ]]>, "gix",
         {
             space: /(?: \s | \/\* .*? \*\/ )/,
             string: /(?:" (?:[^\\"]|\\.)* (?:"|$) | '(?:[^\\']|\\.)* (?:'|$) )/
@@ -491,7 +491,7 @@ var Styles = Module("Styles", {
                     )?
                 )
                 (?P<postSpace> <space>* (?: ; | $) )
-            ]]>, "gi", this),
+            ]]>, "gix", this),
 
         get function() util.regexp(<![CDATA[
                 (?P<function>
@@ -499,7 +499,7 @@ var Styles = Module("Styles", {
                         (?: <string> | [^)]*  )
                     \s* (?: \) | $)
                 )
-            ]]>, "g", this),
+            ]]>, "gx", this),
 
         space: /(?: \s | \/\* .*? \*\/ )/,
 
@@ -508,7 +508,7 @@ var Styles = Module("Styles", {
                     " (?:[^\\"]|\\.)* (?:"|$) |
                     ' (?:[^\\']|\\.)* (?:'|$)
                 )
-            ]]>, "g", this),
+            ]]>, "gx", this),
 
         get token() util.regexp(<![CDATA[
             (?P<token>
@@ -520,7 +520,7 @@ var Styles = Module("Styles", {
                 | <space>+
                 | [^;}\s]+
             )
-        ]]>, "gi", this)
+        ]]>, "gix", this)
     })
 }, {
     commands: function (dactyl, modules, window) {

common/modules/template.jsm

@@ -349,7 +349,7 @@ var Template = Module("Template", {
             (?P<pre> [/\s]|^)
             (?P<tag> '[\w-]+' | :(?:[\w-]+|!) | (?:._)?<[\w-]+> )
             (?=      [[\)!,;./\s]|$)
-        ]]>, "g");
+        ]]>, "gx");
         return this.highlightSubstrings(str, (function () {
             for (let res in re.iterate(str))
                 yield [res.index + res.pre.length, res.tag.length];

common/modules/util.jsm

@@ -349,7 +349,7 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
                 (< ((?:[a-z]-)?[a-z-]+?) >) | // 3 4
                 (\}>) // 5
             )
-        ]]>, "giy");
+        ]]>, "gixy");
         macro = String(macro);
         let end = 0;
         for (let match in re.iterate(macro)) {
@@ -1323,14 +1323,21 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
      * @returns {RegExp} A custom regexp object.
      */
     regexp: update(function (expr, flags, tokens) {
+        flags = flags || [k for ([k, v] in Iterator({ g: "global", i: "ignorecase", m: "multiline", y: "sticky" }))
+                          if (expr[v])].join("");
+
         if (isinstance(expr, ["RegExp"]))
             expr = expr.source;
 
+        // Replace replacement <tokens>.
         if (tokens)
             expr = String.replace(expr, /(\(?P)?<(\w+)>/g, function (m, n1, n2) !n1 && set.has(tokens, n2) ? tokens[n2].dactylSource || tokens[n2].source || tokens[n2] : m);
 
-        expr = String.replace(expr, /(\\.)|\/\/[^\n]*|\/\*[^]*?\*\/|\s+/gm, function (m, m1) m1 || "");
+        // Strip comments and white space.
+        if (/x/.test(flags))
+            expr = String.replace(expr, /(\\.)|\/\/[^\n]*|\/\*[^]*?\*\/|\s+/gm, function (m, m1) m1 || "");
 
+        // Replace (?P<named> parameters)
         if (/\(\?P</.test(expr)) {
             var source = expr;
             let groups = ["wholeMatch"];
@@ -1343,11 +1350,14 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
             var struct = Struct.apply(null, groups);
         }
 
-        let res = update(RegExp(expr, flags), {
+        let res = update(RegExp(expr, flags.replace("x", "")), {
             closure: Class.Property(Object.getOwnPropertyDescriptor(Class.prototype, "closure")),
             dactylPropertyNames: ["exec", "match", "test", "toSource", "toString", "global", "ignoreCase", "lastIndex", "multiLine", "source", "sticky"],
             iterate: function (str, idx) util.regexp.iterate(this, str, idx)
         });
+
+        // Return a struct with properties for named parameters if we
+        // have them.
         if (struct)
             update(res, {
                 exec: function exec() let (match = exec.superapply(this, arguments)) match && struct.fromArray(match),