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Location: cpp/openttd-patchpack/source/string.h - annotation
r5222:671cdc6f4c1e
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(svn r7337) -Feature: [win32] Add font selection by specifying a font-name, ala Fontconfig. Pretty
messy if you ask me, but this is what you get when MS hides the font API in the deepest
depths... thanks Rubidium for testing.
messy if you ask me, but this is what you get when MS hides the font API in the deepest
depths... thanks Rubidium for testing.
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#ifndef STRING_H
#define STRING_H
#include "macros.h"
/*
* dst: destination buffer
* src: string to copy/concatenate
* size: size of the destination buffer
* usage: ttd_strlcpy(dst, src, lengthof(dst));
*/
void ttd_strlcat(char *dst, const char *src, size_t size);
void ttd_strlcpy(char *dst, const char *src, size_t size);
/*
* dst: destination buffer
* src: string to copy
* last: pointer to the last element in the dst array
* if NULL no boundary check is performed
* returns a pointer to the terminating \0 in the destination buffer
* usage: strecpy(dst, src, lastof(dst));
*/
char* strecat(char* dst, const char* src, const char* last);
char* strecpy(char* dst, const char* src, const char* last);
char* CDECL str_fmt(const char* str, ...);
/** Scans the string for valid characters and if it finds invalid ones,
* replaces them with a question mark '?' */
void str_validate(char *str);
/** Scans the string for colour codes and strips them */
void str_strip_colours(char *str);
/**
* Valid filter types for IsValidChar.
*/
typedef enum CharSetFilter {
CS_ALPHANUMERAL, //! Both numeric and alphabetic and spaces and stuff
CS_NUMERAL, //! Only numeric ones
CS_ALPHA, //! Only alphabetic values
} CharSetFilter;
/** Convert the given string to lowercase, only works with ASCII! */
void strtolower(char *str);
typedef uint32 WChar;
/**
* Only allow certain keys. You can define the filter to be used. This makes
* sure no invalid keys can get into an editbox, like BELL.
* @param key character to be checked
* @param afilter the filter to use
* @return true or false depending if the character is printable/valid or not
*/
bool IsValidChar(WChar key, CharSetFilter afilter);
size_t Utf8Decode(WChar *c, const char *s);
size_t Utf8Encode(char *buf, WChar c);
static inline WChar Utf8Consume(const char **s)
{
WChar c;
*s += Utf8Decode(&c, *s);
return c;
}
/** Return the length of a UTF-8 encoded character.
* @param c Unicode character.
* @return Length of UTF-8 encoding for character.
*/
static inline size_t Utf8CharLen(WChar c)
{
if (c < 0x80) return 1;
if (c < 0x800) return 2;
if (c < 0x10000) return 3;
if (c < 0x110000) return 4;
/* Invalid valid, we encode as a '?' */
return 1;
}
/* Check if the given character is part of a UTF8 sequence */
static inline bool IsUtf8Part(char c)
{
return GB(c, 6, 2) == 2;
}
static inline bool IsPrintable(WChar c)
{
if (c < 0x20) return false;
if (c < 0xE000) return true;
if (c < 0xE200) return false;
return true;
}
#endif /* STRING_H */
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