mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-04 06:00:15 +00:00
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/* $Id$ */
|
|
|
|
#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 */
|