X11R7.4 - man page for xtfindfile (x11r4 section 3)
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XtFindFile(3) XT FUNCTIONS XtFindFile(3)
XtFindFile - search for a file using substitutions in the path list
String XtFindFile(String path, Substitution substitutions, Cardinal num_substitutions,
path Specifies a path of file names, including substitution characters.
Specifies a list of substitutions to make into a path.
Specifies the number of substitutions passed in.
predicate Specifies a procedure to call to judge a potential file name, or NULL.
The path parameter specifies a string that consists of a series of potential file names
delimited by colons. Within each name, the percent character specifies a string substitu-
tion 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 substi-
tution; 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 characters
with the string in the corresponding substitution field. A substitution 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 single separator, XtFindFile will collapse multiple separators into a single one
after performing all string substitutions. Except for collapsing 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 using XtFree when it is
no longer needed.
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 libXt 1.0.5 XtFindFile(3)
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