atom-nuclide
Version:
A unified developer experience for web and mobile development, built as a suite of features on top of Atom to provide hackability and the support of an active community.
229 lines (211 loc) • 6.5 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} 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/;
/**
* @enum {string}
*/
WebInspector.TextUtils.Indent = {
TwoSpaces: " ",
FourSpaces: " ",
EightSpaces: " ",
TabCharacter: "\t"
}
/**
* @constructor
* @param {function(string)} callback
* @param {boolean=} findMultiple
*/
WebInspector.TextUtils.BalancedJSONTokenizer = function(callback, findMultiple)
{
this._callback = callback;
this._index = 0;
this._balance = 0;
this._buffer = "";
this._findMultiple = findMultiple || false;
this._closingDoubleQuoteRegex = /[^\\](?:\\\\)*"/g;
}
WebInspector.TextUtils.BalancedJSONTokenizer.prototype = {
/**
* @param {string} chunk
*/
write: function(chunk)
{
this._buffer += chunk;
var lastIndex = this._buffer.length;
var buffer = this._buffer;
for (var index = this._index; index < lastIndex; ++index) {
var character = buffer[index];
if (character === "\"") {
this._closingDoubleQuoteRegex.lastIndex = index;
if (!this._closingDoubleQuoteRegex.test(buffer))
break;
index = this._closingDoubleQuoteRegex.lastIndex - 1;
} else if (character === "{") {
++this._balance;
} else if (character === "}") {
if (--this._balance === 0) {
this._lastBalancedIndex = index + 1;
if (!this._findMultiple)
break;
}
}
}
this._index = index;
this._reportBalanced();
},
_reportBalanced: function()
{
if (!this._lastBalancedIndex)
return;
this._callback(this._buffer.slice(0, this._lastBalancedIndex));
this._buffer = this._buffer.slice(this._lastBalancedIndex);
this._index -= this._lastBalancedIndex;
this._lastBalancedIndex = 0;
},
/**
* @return {string}
*/
remainder: function()
{
return this._buffer;
}
}