Kyle Delong
a8e3321fbd
We'd like to start using ##mixed## instead of ##var## for attribute types to be consistent with Hack. As a followup to this (once released), we would codemod all ##var## to ##mixed##.
91 linhas
4.3 KiB
C++
91 linhas
4.3 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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| Copyright (c) 1998-2010 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_HPHP_BSTRING_H_
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#define incl_HPHP_BSTRING_H_
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#include <stdlib.h>
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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// chrcaseeq performs a case insensitive comparison and returns true if the
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// characters are equal, false otherwise
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inline bool chrcaseeq(char left, char right) {
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char k = left ^ right;
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if (k == 0) return true;
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if (k != 32) return false;
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k = left | right;
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return (k >= 'a' && k <= 'z');
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}
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// chrcasecmp performs a case insensitive comparison and returns < 0 if left
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// is less than right, > 0 if left is greater than right, and 0 if the
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// characters are equal
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inline int chrcasecmp(char left, char right) {
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if (left == right) return 0;
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if (left >= 'A' && left <= 'Z') left += 32;
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if (right >= 'A' && right <= 'Z') right += 32;
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return (int)(unsigned char)left - (int)(unsigned char)right;
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}
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// Given two binary strings of equal length, bstrcaseeq does a case insensitive
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// comparison and returns true if the strings are equal, false otherwise
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bool bstrcaseeq(const char* left, const char* right, size_t n);
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// Given two binary strings (possibly of different lengths), bstrcasecmp
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// does a case insensitive comparison and returns < 0 if left is less than
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// right, > 0 if left is greater than right, and 0 if the strings are equal
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int bstrcasecmp(const char* left, size_t leftSize,
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const char* right, size_t rightSize);
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// Given a binary string haystack and a character needle, bstrcasechr performs
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// a case insensitive search and returns a pointer to the first occurrence of
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// needle in haystack, or NULL if needle is not part of haystack
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char* bstrcasechr(const char* haystack, char needle, size_t haystackSize);
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// Given two binary strings haystack and needle, bstrcasestr performs a case
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// insensitive search and returns a pointer to the first occurrence of needle
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// in haystack, or NULL if needle is not part of haystack. If needleSize is 0,
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// this function will return haystack.
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char* bstrcasestr(const char* haystack, size_t haystackSize,
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const char* needle, size_t needleSize);
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// Given a binary strings haystack and a character needle, bstrcasestr performs
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// a case insensitive search and returns a pointer to the last occurrence of
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// needle in haystack, or NULL if needle is not part of haystack
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char* bstrrcasechr(const char* haystack, char needle, size_t haystackSize);
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// Given two binary strings haystack and needle, bstrcasestr performs a case
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// insensitive search and returns a pointer to the last occurrence of needle in
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// haystack, or NULL if needle is not part of haystack. If needleSize is 0,
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// this function returns haystack + haystackSize.
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char* bstrrcasestr(const char* haystack, size_t haystackSize,
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const char* needle, size_t needleSize);
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// Given two binary strings haystack and needle, bstrrstr performs a case
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// sensitive search and returns a pointer to the last occurrence of needle in
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// haystack, or NULL if needle is not part of haystack. If needleSize is 0,
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// this function returns haystack + haystackSize.
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char* bstrrstr(const char* haystack, size_t haystackSize,
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const char* needle, size_t needleSize);
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif // incl_HPHP_BSTRING_H_
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