monaca-lib
Version:
Monaca cloud API bindings for JavaScript
205 lines (189 loc) • 6.07 kB
JavaScript
/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
WebInspector.TextUtils = {
/**
* @param {string} char
* @return {boolean}
*/
isStopChar: function(char)
{
return (char > " " && char < "0") ||
(char > "9" && char < "A") ||
(char > "Z" && char < "_") ||
(char > "_" && char < "a") ||
(char > "z" && char <= "~");
},
/**
* @param {string} char
* @return {boolean}
*/
isWordChar: function(char)
{
return !WebInspector.TextUtils.isStopChar(char) && !WebInspector.TextUtils.isSpaceChar(char);
},
/**
* @param {string} char
* @return {boolean}
*/
isSpaceChar: function(char)
{
return WebInspector.TextUtils._SpaceCharRegex.test(char);
},
/**
* @param {string} word
* @return {boolean}
*/
isWord: function(word)
{
for (var i = 0; i < word.length; ++i) {
if (!WebInspector.TextUtils.isWordChar(word.charAt(i)))
return false;
}
return true;
},
/**
* @param {string} char
* @return {boolean}
*/
isOpeningBraceChar: function(char)
{
return char === "(" || char === "{";
},
/**
* @param {string} char
* @return {boolean}
*/
isClosingBraceChar: function(char)
{
return char === ")" || char === "}";
},
/**
* @param {string} char
* @return {boolean}
*/
isBraceChar: function(char)
{
return WebInspector.TextUtils.isOpeningBraceChar(char) || WebInspector.TextUtils.isClosingBraceChar(char);
},
/**
* @param {string} text
* @param {function(string):boolean} isWordChar
* @param {function(string)} wordCallback
*/
textToWords: function(text, isWordChar, wordCallback)
{
var startWord = -1;
for(var i = 0; i < text.length; ++i) {
if (!isWordChar(text.charAt(i))) {
if (startWord !== -1)
wordCallback(text.substring(startWord, i));
startWord = -1;
} else if (startWord === -1)
startWord = i;
}
if (startWord !== -1)
wordCallback(text.substring(startWord));
},
/**
* @param {string} source
* @param {number=} startIndex
* @param {number=} lastIndex
* @return {number}
*/
findBalancedCurlyBrackets: function(source, startIndex, lastIndex)
{
// The function is performance sensitive.
lastIndex = lastIndex || source.length;
startIndex = startIndex || 0;
var counter = 0;
var index = startIndex;
while (index < lastIndex) {
// This part counts brackets until end of string or a double quote.
for (; index < lastIndex; ++index) {
var character = source[index];
if (character === "\"")
break;
else if (character === "{")
++counter;
else if (character === "}") {
if (--counter === 0)
return index + 1;
}
}
if (index === lastIndex)
return -1;
// This part seeks the closing double quote which could have even number of back slashes prefix.
var regexp = WebInspector.TextUtils._ClosingDoubleQuoteRegexp;
regexp.lastIndex = index;
if (!regexp.test(source))
return -1;
index = regexp.lastIndex;
}
return -1;
},
/**
* @param {string} line
* @return {string}
*/
lineIndent: function(line)
{
var indentation = 0;
while (indentation < line.length && WebInspector.TextUtils.isSpaceChar(line.charAt(indentation)))
++indentation;
return line.substr(0, indentation);
},
/**
* @param {string} text
* @return {boolean}
*/
isUpperCase: function(text)
{
return text === text.toUpperCase();
},
/**
* @param {string} text
* @return {boolean}
*/
isLowerCase: function(text)
{
return text === text.toLowerCase();
}
}
WebInspector.TextUtils._SpaceCharRegex = /\s/;
WebInspector.TextUtils._ClosingDoubleQuoteRegexp = /[^\\](?:\\\\)*"/g;
/**
* @enum {string}
*/
WebInspector.TextUtils.Indent = {
TwoSpaces: " ",
FourSpaces: " ",
EightSpaces: " ",
TabCharacter: "\t"
}