Removed useless rules, added support for do() syntax

demo/kitchen-sink/docs/praat.praat

@@ -63,8 +63,8 @@ for i from 1 to n
   pitch = noprogress To Pitch (ac): 0, 75, 15, "no",
     ...0.03, 0.45, 0.01, 0.35, 0.14, 600
     
-  # Old-style command with assignment
+  # do-style command with assignment
-  minimum = Get minimum... 0 0 "Hertz" Parabolic
+  minimum = do("Get minimum...", 0, 0, "Hertz", "Parabolic")
 
   # New-style multi-line command call with broken strings
   table = Create Table with column names: "table", 0,
@@ -76,7 +76,8 @@ for i from 1 to n
     
   # Picture window commands
   selectObject: sound
-  Select inner viewport: 1, 6, 0.5, 1.5
+  # do-style command
+  do("Select inner viewport...", 1, 6, 0.5, 1.5)
   Black
   Draw... 0 0 0 0 "no" Curve
   Draw inner box

lib/ace/mode/praat_highlight_rules.js

@@ -15,8 +15,6 @@ var PraatHighlightRules = function() {
         "assert"
     );
 
-//     var buildinConstants = ("ARGV|ENV|INC|SIG");
-
     var predefinedVariables = (
         "macintosh|windows|unix|" +
         "praatVersion|praatVersion\\$" +
@@ -91,18 +89,6 @@ var PraatHighlightRules = function() {
         "ResultsMFC|EEG|ERPTier|ERP|KNN|FeatureWeights"
     );
     
-    var keywordMapper = this.createKeywordMapper({
-        "keyword": keywords,
-//         "constant.language": buildinConstants,
-        "support.function": functions
-    }, "identifier");
-    
-    var inlineIf = this.createKeywordMapper({
-        "keyword": "(if|then|else|fi)",
-//         "constant.language": buildinConstants,
-        "support.function": functions
-    }, "identifier");
-
     // regexp must not have capturing parentheses. Use (?:) instead.
     // regexps are ordered -> the first match is used
 
@@ -120,6 +106,9 @@ var PraatHighlightRules = function() {
             }, {
                 token : ["text", "keyword", "text", "keyword"],
                 regex : /^(\s*)(?:(demo)(\s+))?(10|12|14|16|24)$/
+            }, {
+                token : ["text", "support.function", "text"],
+                regex : /(\s*)(do\$?)(\s*:\s*|\s*\(\s*)/
             }, {
             // Is this rule necessary?
             //     token : ["text", "keyword"],
@@ -151,7 +140,7 @@ var PraatHighlightRules = function() {
                 regex : /"[^"]*$/,
                 next : "brokenstring"
             }, {
-                token : ["text", "keyword", "text", "entity.name.section"], // multi line string start
+                token : ["text", "keyword", "text", "entity.name.section"],
                 regex : /(^\s*)(\bform\b)(\s+)(.*)/,
                 next : "form"
             }, {