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/* Parse HyperText Document Address HTParse.h ** ================================ */ /* These are flag bits which may be ORed together to form a number to give ** the 'wanted' argument to HTParse. */ #define PARSE_ACCESS 16 #define PARSE_HOST 8 #define PARSE_PATH 4 #define PARSE_ANCHOR 2 #define PARSE_PUNCTUATION 1 #define PARSE_ALL 31 /* Parse a Name relative to another name ** ------------------------------------- ** ** This returns those parts of a name which are given (and requested) ** substituting bits from the realted name where necessary. ** ** On entry, ** aName A filename given ** relatedName A name relative to ehich aName is to be parsed ** wanted A mask for the bits which are wanted. ** ** On exit, ** returns A pointer to a malloc'd string which MUST BE FREED */ #ifdef __STDC__ extern char * HTParse(const char * aName, const char * relatedName, int wanted); #else extern char * HTParse(); #endif /* Strip white space off a string ** ------------------------------ ** ** On exit, ** Return value points to first non-white character, or to 0 if none. ** All trailing white space is OVERWRITTEN with zero. */ #ifdef __STDC__ extern char * HTStrip(char * s); #else extern char * HTStrip(); #endif /* Simplify a filename ** ------------------- ** ** A unix-style file is allowed to contain the seqeunce xxx/../ which ** may be replaced by "" , and the seqeunce "/./" which may be replaced ** by "/". ** Simplification helps us recognize duplicate filenames. It doesn't deal ** with soft links, though. ** The new (shorter) filename overwrites the old. ** ** Thus, /etc/junk/../fred becomes /etc/fred ** /etc/junk/./fred becomes /etc/junk/fred */ #ifdef __STDC__ extern void HTSimplify(char * filename); #else extern void HTSimplify(); #endif /* Make Relative Name ** ------------------ ** ** This function creates and returns a string which gives an expression of ** one address as related to another. Where there is no relation, an ** absolute address is retured. ** ** On entry, ** Both names must be absolute, fully qualified names of nodes ** (no anchor bits) ** ** On exit, ** The return result points to a newly allocated name which, if parsed ** by HTParse relative to relatedName, will yield aName. The caller is ** responsible for freeing the resulting name later. ** */ #ifdef __STDC__ extern char * HTRelative(const char * aName, const char *relatedName); #else extern char * HTRelative(); #endif
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