41 lines
804 B
JavaScript
41 lines
804 B
JavaScript
|
|
||
|
|
/**
|
||
|
|
@constructor
|
||
|
|
*/
|
||
|
|
JSDOC.TextStream = function(text) {
|
||
|
|
if (typeof(text) == "undefined") text = "";
|
||
|
|
text = ""+text;
|
||
|
|
this.text = text;
|
||
|
|
this.cursor = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
JSDOC.TextStream.prototype.look = function(n) {
|
||
|
|
if (typeof n == "undefined") n = 0;
|
||
|
|
|
||
|
|
if (this.cursor+n < 0 || this.cursor+n >= this.text.length) {
|
||
|
|
var result = new String("");
|
||
|
|
result.eof = true;
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
return this.text.charAt(this.cursor+n);
|
||
|
|
}
|
||
|
|
|
||
|
|
JSDOC.TextStream.prototype.next = function(n) {
|
||
|
|
if (typeof n == "undefined") n = 1;
|
||
|
|
if (n < 1) return null;
|
||
|
|
|
||
|
|
var pulled = "";
|
||
|
|
for (var i = 0; i < n; i++) {
|
||
|
|
if (this.cursor+i < this.text.length) {
|
||
|
|
pulled += this.text.charAt(this.cursor+i);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var result = new String("");
|
||
|
|
result.eof = true;
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this.cursor += n;
|
||
|
|
return pulled;
|
||
|
|
}
|