CodeMirror: JavaScript mode - Bharat Bartan Bhandar

JavaScript mode

// Demo code (the actual new parser character stream implementation)
function StringStream(string) { 
 this.pos = 0; 
 this.string = string; 
}
StringStream.prototype = { 
 done: function() {return this.pos >= this.string.length;}, 
 peek: function() {return this.string.charAt(this.pos);}, 
 next: function() { 
 if (this.pos < this.string.length) 
 return this.string.charAt(this.pos++); 
 }, 
 eat: function(match) { 
 var ch = this.string.charAt(this.pos); 
 if (typeof match == “string”) var ok = ch == match; 
 else var ok = ch && match.test ? match.test(ch) : match(ch); 
 if (ok) {this.pos++; return ch;} 
 }, 
 eatWhile: function(match) { 
 var start = this.pos; 
 while (this.eat(match)); 
 if (this.pos > start) return this.string.slice(start, this.pos); 
 }, 
 backUp: function(n) {this.pos -= n;}, 
 column: function() {return this.pos;}, 
 eatSpace: function() { 
 var start = this.pos; 
 while (/s/.test(this.string.charAt(this.pos))) this.pos++; 
 return this.pos – start; 
 }, 
 match: function(pattern, consume, caseInsensitive) { 
 if (typeof pattern == “string”) { 
 function cased(str) {return caseInsensitive ? str.toLowerCase() : str;} 
 if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) { 
 if (consume !== false) this.pos += str.length; 
 return true; 
 } 
 } 
 else { 
 var match = this.string.slice(this.pos).match(pattern); 
 if (match && consume !== false) this.pos += match[0].length; 
 return match; 
 } 
 } 
};

JavaScript mode supports several configuration options:

json which will set the mode to expect JSON
data rather than a JavaScript program.
jsonld which will set the mode to expect
JSON-LD linked data rather
than a JavaScript program (demo).
typescript which will activate additional
syntax highlighting and some other things for TypeScript code
(demo).
statementIndent which (given a number) will
determine the amount of indentation to use for statements
continued on a new line.
wordCharacters, a regexp that indicates which
characters should be considered part of an identifier.
Defaults to /[w$]/, which does not handle
non-ASCII identifiers. Can be set to something more elaborate
to improve Unicode support.

MIME types defined: text/javascript, application/json, application/ld+json, text/typescript, application/typescript.

CodeMirror

JavaScript mode

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