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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* $Id$ */
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#ifndef STRING_H
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#define STRING_H
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/*
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* dst: destination buffer
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* src: string to copy/concatenate
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* size: size of the destination buffer
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* usage: ttd_strlcpy(dst, src, lengthof(dst));
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*/
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void ttd_strlcat(char *dst, const char *src, size_t size);
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void ttd_strlcpy(char *dst, const char *src, size_t size);
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/*
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* dst: destination buffer
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* src: string to copy
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* last: pointer to the last element in the dst array
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* if NULL no boundary check is performed
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* returns a pointer to the terminating \0 in the destination buffer
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* usage: strecpy(dst, src, lastof(dst));
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*/
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char* strecat(char* dst, const char* src, const char* last);
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char* strecpy(char* dst, const char* src, const char* last);
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char* CDECL str_fmt(const char* str, ...);
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/** Scans the string for valid characters and if it finds invalid ones,
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* replaces them with a question mark '?' */
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void str_validate(char *str);
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/** Convert the given string to lowercase */
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void strtolower(char *str);
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/** Only allow valid ascii-function codes. Filter special codes like BELL and
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* so on [we need a special filter here later]
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* @param key character to be checked
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* @return true or false depending if the character is printable/valid or not */
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static inline bool IsValidAsciiChar(byte key)
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{
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// XXX This filter stops certain crashes, but may be too restrictive.
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return (key >= ' ' && key < 127) || (key >= 160 &&
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key != 0xAA && key != 0xAC && key != 0xAD && key != 0xAF &&
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key != 0xB5 && key != 0xB6 && key != 0xB7 && key != 0xB9);
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}
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#endif /* STRING_H */
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