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XtFindFile(3) Library Functions Manual XtFindFile(3) NAME XtFindFile - search for a file using substitutions in the path list SYNTAX #include <X11/Intrinsic.h> char * XtFindFile(const char *path, Substitution substitutions, Cardi- nal num_substitutions, XtFilePredicate predicate); ARGUMENTS path Specifies a path of file names, including substitution char- acters. substitutions Specifies a list of substitutions to make into a path. num_substitutions Specifies the number of substitutions passed in. predicate Specifies a procedure to call to judge a potential file name, or NULL. DESCRIPTION The path parameter specifies a string that consists of a series of po- tential file names delimited by colons. Within each name, the percent character specifies a string substitution selected by the following character. The character sequence "%:" specifies an embedded colon that is not a delimiter; the sequence is replaced by a single colon. The character sequence "%%" specifies a percent character that does not introduce a substitution; the sequence is replaced by a single percent character. If a percent character is followed by any other character, XtFindFile looks through the specified substitutions for that character in the match field and if found replaces the percent and match charac- ters with the string in the corresponding substitution field. A sub- stitution field entry of NULL is equivalent to a pointer to an empty string. If the operating system does not interpret multiple embedded name separators in the path (i.e., "/" in POSIX) the same way as a sin- gle separator, XtFindFile will collapse multiple separators into a sin- gle one after performing all string substitutions. Except for collaps- ing embedded separators, the contents of the string substitutions are not interpreted by XtFindFile and may therefore contain any operating- system-dependent characters, including additional name separators. Each resulting string is passed to the predicate procedure until a string is found for which the procedure returns True; this string is the return value for XtFindFile. If no string yields a True return from the predicate, XtFindFile returns NULL. If the predicate parameter is NULL, an internal procedure that checks if the file exists, is readable, and is not a directory will be used. It is the responsibility of the caller to free the returned string us- ing XtFree when it is no longer needed. SEE ALSO X Toolkit Intrinsics - C Language Interface Xlib - C Language X Interface XT FUNCTIONS X Version 11 XtFindFile(3)