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Location: cpp/openttd-patchpack/source/src/string.h - annotation
r7128:5dd9e863c104
4.5 KiB
text/x-c
(svn r10402) -Update: WebTranslator2 update to 2007-06-30 21:32:39
bulgarian - 10 fixed by kokobongo (10)
french - 2 fixed by glx (2)
italian - 2 fixed, 2 changed by lorenzodv (4)
korean - 2 fixed, 2 changed by darkttd (4)
polish - 43 fixed, 1 changed by meush (44)
slovenian - 1 fixed by Necrolyte (1)
spanish - 5 changed by eusebio (5)
swedish - 2 fixed by giddorah (2)
bulgarian - 10 fixed by kokobongo (10)
french - 2 fixed by glx (2)
italian - 2 fixed, 2 changed by lorenzodv (4)
korean - 2 fixed, 2 changed by darkttd (4)
polish - 43 fixed, 1 changed by meush (44)
slovenian - 1 fixed by Necrolyte (1)
spanish - 5 changed by eusebio (5)
swedish - 2 fixed by giddorah (2)
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/** @file string.h */
#ifndef STRING_H
#define STRING_H
#include "macros.h"
/**
* usage ttd_strlcpy(dst, src, lengthof(dst));
* @param dst destination buffer
* @param src string to copy/concatenate
* @param size size of the destination buffer
*/
void ttd_strlcat(char *dst, const char *src, size_t size);
void ttd_strlcpy(char *dst, const char *src, size_t size);
/**
* usage: strecpy(dst, src, lastof(dst));
* @param dst destination buffer
* @param src string to copy
* @param last pointer to the last element in the dst array
* if NULL no boundary check is performed
* @return a pointer to the terminating \0 in the destination buffer
*/
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.
*/
enum CharSetFilter {
CS_ALPHANUMERAL, ///< Both numeric and alphabetic and spaces and stuff
CS_NUMERAL, ///< Only numeric ones
CS_ALPHA, ///< Only alphabetic values
};
/** Convert the given string to lowercase, only works with ASCII! */
void strtolower(char *str);
static inline bool StrEmpty(const char* s) { return s[0] == '\0'; }
/** Get the length of a string, within a limited buffer */
static inline int ttd_strnlen(const char *str, int maxlen)
{
const char *t;
for (t = str; *t != '\0' && t - str < maxlen; t++);
return t - str;
}
/** Convert the md5sum number to a 'hexadecimal' string, return next pos in buffer */
char *md5sumToString(char *buf, const char *last, const uint8 md5sum[16]);
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);
size_t Utf8TrimString(char *s, size_t maxlen);
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;
}
/**
* Return the length of an UTF-8 encoded value based on a single char. This
* char should be the first byte of the UTF-8 encoding. If not, or encoding
* is invalid, return value is 0
* @param c char to query length of
* @return requested size
*/
static inline size_t Utf8EncodedCharLen(char c)
{
if (GB(c, 3, 5) == 0x1E) return 4;
if (GB(c, 4, 4) == 0x0E) return 3;
if (GB(c, 5, 3) == 0x06) return 2;
if (GB(c, 7, 1) == 0x00) return 1;
/* Invalid UTF8 start encoding */
return 0;
}
/* Check if the given character is part of a UTF8 sequence */
static inline bool IsUtf8Part(char c)
{
return GB(c, 6, 2) == 2;
}
/**
* Retrieve the previous UNICODE character in an UTF-8 encoded string.
* @param s char pointer pointing to (the first char of) the next character
* @return a pointer in 's' to the previous UNICODE character's first byte
* @note The function should not be used to determine the length of the previous
* encoded char because it might be an invalid/corrupt start-sequence
*/
static inline char *Utf8PrevChar(const char *s)
{
const char *ret = s;
while (IsUtf8Part(*--ret));
return (char*)ret;
}
static inline bool IsPrintable(WChar c)
{
if (c < 0x20) return false;
if (c < 0xE000) return true;
if (c < 0xE200) return false;
return true;
}
/**
* Check whether UNICODE character is whitespace or not
* @param c UNICODE character to check
* @return a boolean value whether 'c' is a whitespace character or not
* @see http://www.fileformat.info/info/unicode/category/Zs/list.htm
*/
static inline bool IsWhitespace(WChar c)
{
return
c == 0x0020 /* SPACE */ ||
c == 0x00A0 /* NO-BREAK SPACE */ ||
c == 0x3000 /* IDEOGRAPHIC SPACE */
;
}
#endif /* STRING_H */
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