| /*! |
| * `JSON.minify()` |
| * This version does not use regular expressions. |
| * |
| * Copyright 2011, Kyle Simpson. |
| * Copyright 2012, Kit Cambridge. |
| * |
| * Released under the MIT License. |
| */ |
| |
| ;(function () { |
| var JSON = this.JSON; |
| |
| // Create the global JSON object if it doesn't exist. |
| if (Object(JSON) !== JSON) { |
| JSON = this.JSON = {}; |
| } |
| |
| JSON.minify = function (source) { |
| var index = 0, length = source.length, result = "", symbol, position; |
| while (index < length) { |
| symbol = source.charAt(index); |
| switch (symbol) { |
| // Ignore whitespace tokens. According to ES 5.1 section 15.12.1.1, |
| // whitespace tokens include tabs, carriage returns, line feeds, and |
| // space characters. |
| // ----------------------------------------------------------------- |
| case "\t": |
| case "\r": |
| case "\n": |
| case " ": |
| index += 1; |
| break; |
| // Ignore line and block comments. |
| // ------------------------------- |
| case "/": |
| symbol = source.charAt(index += 1); |
| switch (symbol) { |
| // Line comments. |
| // ------------- |
| case "/": |
| position = source.indexOf("\n", index); |
| if (position < 0) { |
| // Check for CR-style line endings. |
| position = source.indexOf("\r", index); |
| } |
| index = position > -1 ? position : length; |
| break; |
| // Block comments. |
| // --------------- |
| case "*": |
| position = source.indexOf("*/", index); |
| if (position > -1) { |
| // Advance the scanner's position past the end of the comment. |
| index = position += 2; |
| break; |
| } |
| throw SyntaxError("Unterminated block comment."); |
| default: |
| throw SyntaxError("Invalid comment."); |
| } |
| break; |
| // Parse strings separately to ensure that any whitespace characters and |
| // JavaScript-style comments within them are preserved. |
| // --------------------------------------------------------------------- |
| case '"': |
| position = index; |
| while (index < length) { |
| symbol = source.charAt(index += 1); |
| if (symbol == "\\") { |
| // Skip past escaped characters. |
| index += 1; |
| } else if (symbol == '"') { |
| break; |
| } |
| } |
| if (source.charAt(index) == '"') { |
| result += source.slice(position, index += 1); |
| break; |
| } |
| throw SyntaxError("Unterminated string."); |
| // Preserve all other characters. |
| // ------------------------------ |
| default: |
| result += symbol; |
| index += 1; |
| } |
| } |
| return result; |
| }; |
| }).call(this); |