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/* $Id$ */
#ifndef STRING_H
#define STRING_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);
/** Convert the given string to lowercase */
void strtolower(char *str);
/** Only allow valid ascii-function codes. Filter special codes like BELL and
* so on [we need a special filter here later]
* @param key character to be checked
* @return true or false depending if the character is printable/valid or not */
static inline bool IsValidAsciiChar(byte key)
{
// XXX This filter stops certain crashes, but may be too restrictive.
return (key >= ' ' && key < 127) || (key >= 160 &&
key != 0xAA && key != 0xAC && key != 0xAD && key != 0xAF &&
key != 0xB5 && key != 0xB6 && key != 0xB7 && key != 0xB9);
}
#endif /* STRING_H */
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