XtFindF(1) X Version 11 XtFindF(1)XtFindFile(3Xt) XT FUNCTIONS XtFindFile(3Xt)NAME
XtFindFile - search for a file using substitutions in the path list
SYNTAX
String XtFindFile(path, substitutions, num_substitutions,predicate)
String path;
Substitution substitutions;
Cardinal 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
potential file names delimited by colons. Within each name, the per‐
cent character specifies a string substitution selected by the follow‐
ing 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, 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 multi‐
ple embedded name separators in the path (i.e., ``/'' in POSIX) the
same way as a single separator, will collapse multiple separators into
a single one after performing all string substitutions. Except for
collapsing embedded separators, the contents of the string substitu‐
tions are not interpreted by 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 this string is the
return value for If no string yields a return from the predicate,
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 when it is no longer needed.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 Release 6 XtFindFile(3Xt)
