LCOV - app.info - js/src/yarr/ASCIICType.h

LCOV - code coverage report
| Current view: | directory - js/src/yarr - ASCIICType.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 12 | 10 | 83.3 %
| Date: | 2012-07-07 | Functions: | 12 | 10 | 83.3 %

           1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
           2                 :  * vim: set ts=8 sw=4 et tw=99 ft=cpp:
           3                 :  *
           4                 :  * ***** BEGIN LICENSE BLOCK *****
           5                 :  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
           6                 :  *
           7                 :  * Redistribution and use in source and binary forms, with or without
           8                 :  * modification, are permitted provided that the following conditions
           9                 :  * are met:
          10                 :  *
          11                 :  * 1.  Redistributions of source code must retain the above copyright
          12                 :  *     notice, this list of conditions and the following disclaimer.
          13                 :  * 2.  Redistributions in binary form must reproduce the above copyright
          14                 :  *     notice, this list of conditions and the following disclaimer in the
          15                 :  *     documentation and/or other materials provided with the distribution.
          16                 :  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
          17                 :  *     its contributors may be used to endorse or promote products derived
          18                 :  *     from this software without specific prior written permission.
          19                 :  *
          20                 :  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
          21                 :  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
          22                 :  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
          23                 :  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
          24                 :  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
          25                 :  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
          26                 :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
          27                 :  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
          28                 :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
          29                 :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
          30                 :  *
          31                 :  * ***** END LICENSE BLOCK ***** */
          32                 :
          33                 : #ifndef WTF_ASCIICType_h
          34                 : #define WTF_ASCIICType_h
          35                 :
          36                 : #include "assembler/wtf/Assertions.h"
          37                 :
          38                 : // The behavior of many of the functions in the <ctype.h> header is dependent
          39                 : // on the current locale. But in the WebKit project, all uses of those functions
          40                 : // are in code processing something that's not locale-specific. These equivalents
          41                 : // for some of the <ctype.h> functions are named more explicitly, not dependent
          42                 : // on the C library locale, and we should also optimize them as needed.
          43                 :
          44                 : // All functions return false or leave the character unchanged if passed a character
          45                 : // that is outside the range 0-7F. So they can be used on Unicode strings or
          46                 : // characters if the intent is to do processing only if the character is ASCII.
          47                 :
          48                 : namespace WTF {
          49                 :
          50                 :     inline bool isASCII(char c) { return !(c & ~0x7F); }
          51           22052 :     inline bool isASCII(unsigned short c) { return !(c & ~0x7F); }
          52                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          53                 :     inline bool isASCII(wchar_t c) { return !(c & ~0x7F); }
          54                 : #endif
          55                 :     inline bool isASCII(int c) { return !(c & ~0x7F); }
          56                 :     inline bool isASCII(unsigned c) { return !(c & ~0x7F); }
          57                 :
          58                 :     inline bool isASCIIAlpha(char c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }
          59           25598 :     inline bool isASCIIAlpha(unsigned short c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }
          60                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          61                 :     inline bool isASCIIAlpha(wchar_t c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }
          62                 : #endif
          63               0 :     inline bool isASCIIAlpha(int c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }
          64                 :     inline bool isASCIIAlpha(unsigned c) { return (c | 0x20) >= 'a' && (c | 0x20) <= 'z'; }
          65                 :
          66                 :     inline bool isASCIIAlphanumeric(char c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
          67                 :     inline bool isASCIIAlphanumeric(unsigned short c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
          68                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          69                 :     inline bool isASCIIAlphanumeric(wchar_t c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
          70                 : #endif
          71               0 :     inline bool isASCIIAlphanumeric(int c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
          72                 :     inline bool isASCIIAlphanumeric(unsigned c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
          73                 :
          74                 :     inline bool isASCIIDigit(char c) { return (c >= '0') & (c <= '9'); }
          75                 :     inline bool isASCIIDigit(unsigned short c) { return (c >= '0') & (c <= '9'); }
          76                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          77                 :     inline bool isASCIIDigit(wchar_t c) { return (c >= '0') & (c <= '9'); }
          78                 : #endif
          79           36625 :     inline bool isASCIIDigit(int c) { return (c >= '0') & (c <= '9'); }
          80                 :     inline bool isASCIIDigit(unsigned c) { return (c >= '0') & (c <= '9'); }
          81                 :
          82                 :     inline bool isASCIIHexDigit(char c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }
          83                 :     inline bool isASCIIHexDigit(unsigned short c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }
          84                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          85                 :     inline bool isASCIIHexDigit(wchar_t c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }
          86                 : #endif
          87           34492 :     inline bool isASCIIHexDigit(int c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }
          88                 :     inline bool isASCIIHexDigit(unsigned c) { return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f'); }
          89                 :
          90                 :     inline bool isASCIIOctalDigit(char c) { return (c >= '0') & (c <= '7'); }
          91                 :     inline bool isASCIIOctalDigit(unsigned short c) { return (c >= '0') & (c <= '7'); }
          92                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
          93                 :     inline bool isASCIIOctalDigit(wchar_t c) { return (c >= '0') & (c <= '7'); }
          94                 : #endif
          95              44 :     inline bool isASCIIOctalDigit(int c) { return (c >= '0') & (c <= '7'); }
          96                 :     inline bool isASCIIOctalDigit(unsigned c) { return (c >= '0') & (c <= '7'); }
          97                 :
          98           10920 :     inline bool isASCIILower(char c) { return c >= 'a' && c <= 'z'; }
          99                 :     inline bool isASCIILower(unsigned short c) { return c >= 'a' && c <= 'z'; }
         100                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         101                 :     inline bool isASCIILower(wchar_t c) { return c >= 'a' && c <= 'z'; }
         102                 : #endif
         103                 :     inline bool isASCIILower(int c) { return c >= 'a' && c <= 'z'; }
         104                 :     inline bool isASCIILower(unsigned c) { return c >= 'a' && c <= 'z'; }
         105                 :
         106            7342 :     inline bool isASCIIUpper(char c) { return c >= 'A' && c <= 'Z'; }
         107                 :     inline bool isASCIIUpper(unsigned short c) { return c >= 'A' && c <= 'Z'; }
         108                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         109                 :     inline bool isASCIIUpper(wchar_t c) { return c >= 'A' && c <= 'Z'; }
         110                 : #endif
         111                 :     inline bool isASCIIUpper(int c) { return c >= 'A' && c <= 'Z'; }
         112                 :     inline bool isASCIIUpper(unsigned c) { return c >= 'A' && c <= 'Z'; }
         113                 :
         114                 :     /*
         115                 :         Statistics from a run of Apple's page load test for callers of isASCIISpace:
         116                 :
         117                 :             character          count
         118                 :             ---------          -----
         119                 :             non-spaces         689383
         120                 :         20  space              294720
         121                 :         0A  \n                 89059
         122                 :         09  \t                 28320
         123                 :         0D  \r                 0
         124                 :         0C  \f                 0
         125                 :         0B  \v                 0
         126                 :     */
         127                 :     inline bool isASCIISpace(char c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }
         128                 :     inline bool isASCIISpace(unsigned short c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }
         129                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         130                 :     inline bool isASCIISpace(wchar_t c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }
         131                 : #endif
         132                 :     inline bool isASCIISpace(int c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }
         133                 :     inline bool isASCIISpace(unsigned c) { return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); }
         134                 :
         135                 :     inline char toASCIILower(char c) { return c | ((c >= 'A' && c <= 'Z') << 5); }
         136            3578 :     inline unsigned short toASCIILower(unsigned short c) { return c | ((c >= 'A' && c <= 'Z') << 5); }
         137                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         138                 :     inline wchar_t toASCIILower(wchar_t c) { return c | ((c >= 'A' && c <= 'Z') << 5); }
         139                 : #endif
         140                 :     inline int toASCIILower(int c) { return c | ((c >= 'A' && c <= 'Z') << 5); }
         141                 :     inline unsigned toASCIILower(unsigned c) { return c | ((c >= 'A' && c <= 'Z') << 5); }
         142                 :
         143                 :     // FIXME: Why do these need static_cast?
         144                 :     inline char toASCIIUpper(char c) { return static_cast<char>(c & ~((c >= 'a' && c <= 'z') << 5)); }
         145            3578 :     inline unsigned short toASCIIUpper(unsigned short c) { return static_cast<unsigned short>(c & ~((c >= 'a' && c <= 'z') << 5)); }
         146                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         147                 :     inline wchar_t toASCIIUpper(wchar_t c) { return static_cast<wchar_t>(c & ~((c >= 'a' && c <= 'z') << 5)); }
         148                 : #endif
         149                 :     inline int toASCIIUpper(int c) { return static_cast<int>(c & ~((c >= 'a' && c <= 'z') << 5)); }
         150                 :     inline unsigned toASCIIUpper(unsigned c) { return static_cast<unsigned>(c & ~((c >= 'a' && c <= 'z') << 5)); }
         151                 :
         152                 :     inline int toASCIIHexValue(char c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }
         153                 :     inline int toASCIIHexValue(unsigned short c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }
         154                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         155                 :     inline int toASCIIHexValue(wchar_t c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }
         156                 : #endif
         157           17246 :     inline int toASCIIHexValue(int c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }
         158                 :     inline int toASCIIHexValue(unsigned c) { ASSERT(isASCIIHexDigit(c)); return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF; }
         159                 :
         160                 :     inline bool isASCIIPrintable(char c) { return c >= ' ' && c <= '~'; }
         161                 :     inline bool isASCIIPrintable(unsigned short c) { return c >= ' ' && c <= '~'; }
         162                 : #if !WTF_COMPILER_MSVC || defined(_NATIVE_WCHAR_T_DEFINED)
         163                 :     inline bool isASCIIPrintable(wchar_t c) { return c >= ' ' && c <= '~'; }
         164                 : #endif
         165                 :     inline bool isASCIIPrintable(int c) { return c >= ' ' && c <= '~'; }
         166                 :     inline bool isASCIIPrintable(unsigned c) { return c >= ' ' && c <= '~'; }
         167                 : }
         168                 :
         169                 : using WTF::isASCII;
         170                 : using WTF::isASCIIAlpha;
         171                 : using WTF::isASCIIAlphanumeric;
         172                 : using WTF::isASCIIDigit;
         173                 : using WTF::isASCIIHexDigit;
         174                 : using WTF::isASCIILower;
         175                 : using WTF::isASCIIOctalDigit;
         176                 : using WTF::isASCIIPrintable;
         177                 : using WTF::isASCIISpace;
         178                 : using WTF::isASCIIUpper;
         179                 : using WTF::toASCIIHexValue;
         180                 : using WTF::toASCIILower;
         181                 : using WTF::toASCIIUpper;
         182                 :
         183                 : #endif

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