SkAutoAsciiToLC Class Reference

#include <SkTSearch.h>

Public Member Functions
	SkAutoAsciiToLC (const char str[], size_t len=(size_t) -1)
	~SkAutoAsciiToLC ()
const char *	lc () const
size_t	length () const

Detailed Description

Helper class to convert a string to lower-case, but only modifying the ascii characters. This makes the routine very fast and never changes the string length, but it is not suitable for linguistic purposes. Normally this is used for buiding and searching string tables.

Definition at line 112 of file SkTSearch.h.

Constructor & Destructor Documentation

SkAutoAsciiToLC()

SkAutoAsciiToLC::SkAutoAsciiToLC	(	const char	str[],
		size_t	len = (size_t)-1
	)

Definition at line 82 of file SkTSearch.cpp.

{
    // see if we need to compute the length
    if ((long)len < 0) {
        len = strlen(str);
    }
    fLength = len;
 
    // assign lc to our preallocated storage if len is small enough, or allocate
    // it on the heap
    char*   lc;
    if (len <= STORAGE) {
        lc = fStorage;
    } else {
        lc = (char*)sk_malloc_throw(len + 1);
    }
    fLC = lc;
 
    // convert any asii to lower-case. we let non-ascii (utf8) chars pass
    // through unchanged
    for (int i = (int)(len - 1); i >= 0; --i) {
        int c = str[i];
        if ((c & 0x80) == 0) {   // is just ascii
            c = tolower(c);
        }
        lc[i] = c;
    }
    lc[len] = 0;
}

~SkAutoAsciiToLC()

SkAutoAsciiToLC::~SkAutoAsciiToLC

(

)

Definition at line 112 of file SkTSearch.cpp.

{
    if (fLC != fStorage) {
        sk_free(fLC);
    }
}

Member Function Documentation

lc()

const char * SkAutoAsciiToLC::lc ( ) const

inline

Definition at line 117 of file SkTSearch.h.

{ return fLC; }

length()

size_t SkAutoAsciiToLC::length ( ) const

inline

Definition at line 118 of file SkTSearch.h.

{ return fLength; }

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The documentation for this class was generated from the following files:

• third_party/skia/src/base/SkTSearch.h
• third_party/skia/src/base/SkTSearch.cpp