ascii_ctype.h | Explore in Territory

/*
 * Copyright (C) 2007, 2008, 2009, 2011 Apple 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:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_ASCII_CTYPE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_ASCII_CTYPE_H_

#include "base/check_op.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_uchar.h"
#include "third_party/blink/renderer/platform/wtf/wtf_export.h"

// The behavior of many of the functions in the <ctype.h> header is dependent
// on the current locale. But in the WebKit project, all uses of those functions
// are in code processing something that's not locale-specific. These
// equivalents for some of the <ctype.h> functions are named more explicitly,
// not dependent on the C library locale, and we should also optimize them as
// needed.

// All functions return false or leave the character unchanged if passed a
// character that is outside the range 0-7F. So they can be used on Unicode
// strings or characters if the intent is to do processing only if the
// character is ASCII.

namespace WTF {

template <typename CharType>
inline bool IsASCII(CharType c) { … }

template <typename CharType>
inline bool IsASCIIAlpha(CharType c) { … }

template <typename CharType>
inline bool IsASCIIDigit(CharType c) { … }

template <typename CharType>
inline bool IsASCIIAlphanumeric(CharType c) { … }

template <typename CharType>
inline bool IsASCIIHexDigit(CharType c) { … }

template <typename CharType>
inline bool IsASCIILower(CharType c) { … }

template <typename CharType>
inline bool IsASCIIPrintable(CharType c) { … }

/*
 Statistics from a run of Apple's page load test for callers of IsASCIISpace:

 character          count
 ---------          -----
 non-spaces         689383
 20  space          294720
 0A  \n             89059
 09  \t             28320
 0D  \r             0
 0C  \f             0
 0B  \v             0
 */
template <typename CharType>
inline bool IsASCIISpace(CharType c) { … }

template <typename CharType>
inline bool IsASCIIUpper(CharType c) { … }

WTF_EXPORT extern const LChar kASCIICaseFoldTable[256];

template <typename CharType>
inline CharType ToASCIILower(CharType c) { … }

inline LChar ToASCIILower(LChar c) { … }

inline char ToASCIILower(char c) { … }

template <typename CharType>
inline CharType ToASCIIUpper(CharType c) { … }

template <typename CharType>
inline int ToASCIIHexValue(CharType c) { … }

template <typename CharType>
inline int ToASCIIHexValue(CharType upper_value, CharType lower_value) { … }

inline char LowerNibbleToASCIIHexDigit(char c) { … }

inline char UpperNibbleToASCIIHexDigit(char c) { … }

template <typename CharType>
inline bool IsASCIIAlphaCaselessEqual(CharType css_character, char character) { … }

}  // namespace WTF

IsASCII;
IsASCIIAlpha;
IsASCIIAlphaCaselessEqual;
IsASCIIAlphanumeric;
IsASCIIDigit;
IsASCIIHexDigit;
IsASCIILower;
IsASCIIPrintable;
IsASCIISpace;
IsASCIIUpper;
LowerNibbleToASCIIHexDigit;
ToASCIIHexValue;
ToASCIILower;
ToASCIIUpper;
UpperNibbleToASCIIHexDigit;

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_ASCII_CTYPE_H_
chromium/third_party/blink/renderer/platform/wtf/text/ascii_ctype.h
