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Diffstat (limited to 'tools/jsdoc-toolkit-2.4.0/app/frame/String.js')
-rw-r--r-- | tools/jsdoc-toolkit-2.4.0/app/frame/String.js | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/tools/jsdoc-toolkit-2.4.0/app/frame/String.js b/tools/jsdoc-toolkit-2.4.0/app/frame/String.js new file mode 100644 index 0000000..c183c27 --- /dev/null +++ b/tools/jsdoc-toolkit-2.4.0/app/frame/String.js @@ -0,0 +1,93 @@ +/** + @name String + @class Additions to the core string object. +*/ + +/** @author Steven Levithan, released as public domain. */ +String.prototype.trim = function() { + var str = this.replace(/^\s+/, ''); + for (var i = str.length - 1; i >= 0; i--) { + if (/\S/.test(str.charAt(i))) { + str = str.substring(0, i + 1); + break; + } + } + return str; +} +/*t: + plan(6, "Testing String.prototype.trim."); + + var s = " a bc ".trim(); + is(s, "a bc", "multiple spaces front and back are trimmed."); + + s = "a bc\n\n".trim(); + is(s, "a bc", "newlines only in back are trimmed."); + + s = "\ta bc".trim(); + is(s, "a bc", "tabs only in front are trimmed."); + + s = "\n \t".trim(); + is(s, "", "an all-space string is trimmed to empty."); + + s = "a b\nc".trim(); + is(s, "a b\nc", "a string with no spaces in front or back is trimmed to itself."); + + s = "".trim(); + is(s, "", "an empty string is trimmed to empty."); + +*/ + +String.prototype.balance = function(open, close) { + var i = 0; + while (this.charAt(i) != open) { + if (i == this.length) return [-1, -1]; + i++; + } + + var j = i+1; + var balance = 1; + while (j < this.length) { + if (this.charAt(j) == open) balance++; + if (this.charAt(j) == close) balance--; + if (balance == 0) break; + j++; + if (j == this.length) return [-1, -1]; + } + + return [i, j]; +} +/*t: + plan(16, "Testing String.prototype.balance."); + + var s = "{abc}".balance("{","}"); + is(s[0], 0, "opener in first is found."); + is(s[1], 4, "closer in last is found."); + + s = "ab{c}de".balance("{","}"); + is(s[0], 2, "opener in middle is found."); + is(s[1], 4, "closer in middle is found."); + + s = "a{b{c}de}f".balance("{","}"); + is(s[0], 1, "nested opener is found."); + is(s[1], 8, "nested closer is found."); + + s = "{}".balance("{","}"); + is(s[0], 0, "opener with no content is found."); + is(s[1], 1, "closer with no content is found."); + + s = "".balance("{","}"); + is(s[0], -1, "empty string opener is -1."); + is(s[1], -1, "empty string closer is -1."); + + s = "{abc".balance("{","}"); + is(s[0], -1, "opener with no closer returns -1."); + is(s[1], -1, "no closer returns -1."); + + s = "abc".balance("{","}"); + is(s[0], -1, "no opener or closer returns -1 for opener."); + is(s[1], -1, "no opener or closer returns -1 for closer."); + + s = "a<bc}de".balance("<","}"); + is(s[0], 1, "unmatching opener is found."); + is(s[1], 4, "unmatching closer is found."); +*/
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