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.\" Copyright (c) 1993, 1994 X Consortium
.\"
.\" Permission is hereby granted, free of charge, to any person obtaining a
.\" copy of this software and associated documentation files (the "Software"),
.\" to deal in the Software without restriction, including without limitation
.\" the rights to use, copy, modify, merge, publish, distribute, sublicense,
.\" and/or sell copies of the Software, and to permit persons to whom the
.\" Software furnished to do so, subject to the following conditions:
.\"
.\" The above copyright notice and this permission notice shall be included in
.\" all copies or substantial portions of the Software.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
.\" THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
.\" WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
.\" OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
.\" SOFTWARE.
.\"
.\" Except as contained in this notice, the name of the X Consortium shall not
.\" be used in advertising or otherwise to promote the sale, use or other
.\" dealing in this Software without prior written authorization from the
.\" X Consortium.
.\"
.ds tk X Toolkit
.ds xT X Toolkit Intrinsics \- C Language Interface
.ds xI Intrinsics
.ds xW X Toolkit Athena Widgets \- C Language Interface
.ds xL Xlib \- C Language X Interface
.ds xC Inter-Client Communication Conventions Manual
.ds Rn 3
.ds Vn 2.2
.hw XtResolve-Pathname wid-get
.na
.TH XtResolvePathname __libmansuffix__ __xorgversion__ "XT FUNCTIONS"
.SH NAME
XtResolvePathname \- search for a file using standard substitution
.SH SYNTAX
.HP
char * XtResolvePathname(Display *\fIdisplay\fP,
const char *\fItype\fP,
const char *\fIfilename\fP,
const char *\fIsuffix\fP,
const char *\fIpath\fP,
Substitution \fIsubstitutions\fP, Cardinal \fInum_substitutions\fP,
XtFilePredicate \fIpredicate\fP);
.SH ARGUMENTS
.IP \fIdisplay\fP 1.2i
Specifies the display to use to find the language for language substitutions.
.IP \fItype\fP
.br
.ns
.IP \fIfilename\fP
.br
.ns
.IP \fIsuffix\fP 1.2i
Specify values to substitute into the path.
.IP \fIpath\fP 1.2i
Specifies the list of file specifications, or NULL.
.IP \fIsubstitutions\fP 1.2i
Specifies a list of additional substitutions to make into the path, or NULL.
.IP \fInum_substitutions\fP 1.2i
Specifies the number of entries in \fIsubstitutions\fP.
.IP \fIpredicate\fP 1.2i
Specifies a procedure called to judge each potential file name, or NULL.
.SH DESCRIPTION
The substitutions specified by
.B XtResolvePathname
are determined from the value of the language string retrieved by
.B XtDisplayInitialize
for the specified display.
To set the
language for all applications specify ``*xnlLanguage: \fIlang\fP'' in the
resource database.
The format and content of the language string are
implementation-defined. One suggested syntax is to compose
the language string of three parts; a ``language part'', a
``territory part'' and a ``codeset part''. The manner in which
this composition is accomplished is implementation-defined
and the \*(xI make no interpretation of the parts other
than to use them in substitutions as described below.
.LP
.B XtResolvePathname
calls
.B XtFindFile
with the following substitutions
in addition to any passed by the caller and returns the value returned by
.BR XtFindFile :
.IP %N 5
The value of the \fIfilename\fP parameter, or the application's
class name if \fIfilename\fP is NULL.
.IP %T 5
The value of the \fItype\fP parameter.
.IP %S 5
The value of the \fIsuffix\fP parameter.
.IP %L 5
The language string associated with the specified display.
.IP %l 5
The language part of the display's language string.
.IP %t 5
The territory part of the display's language string.
.IP %c 5
The codeset part of the display's language string.
.IP %C 5
The customization string retrieved from the resource
database associated with \fIdisplay\fP.
.IP %D 5
The value of the implementation-specific default path.
.LP
If a path is passed to
.BR XtResolvePathname ,
it will be passed along to
.BR XtFindFile .
If the \fIpath\fP argument is NULL, the value of the
.B \s-1XFILESEARCHPATH\s+1
.IN "XFILESEARCHPATH" "" "@DEF@"
environment variable will be passed to
.BR XtFindFile .
If
.B \s-1XFILESEARCHPATH\s+1
is not defined, an implementation-specific default path will be used
which contains at least 6 entries. These entries
must contain the following substitutions:
.nf
.ta 3n 23n 27n
1. %C, %N, %S, %T, %L or %C, %N, %S, %T, %l, %t, %c
2. %C, %N, %S, %T, %l
3. %C, %N, %S, %T
4. %N, %S, %T, %L or %N, %S, %T, %l, %t, %c
5. %N, %S, %T, %l
6. %N, %S, %T
.fi
The order of these six entries within the path must be as given above.
The order and use of substitutions within a given entry is implementation
dependent.
If the path begins
with a colon, it will be preceded by %N%S. If the path includes two
adjacent colons, \fB%N%S\fP will be inserted between them.
.LP
The \fItype\fP parameter is intended to be a category of files, usually
being translated into a directory in the pathname. Possible values
might include ``app-defaults'', ``help'', and ``bitmap''.
.LP
The \fIsuffix\fP parameter is intended to be appended to the file name.
Possible values might include ``.txt'', ``.dat'', and ``.bm''.
.LP
A suggested value for the default path on POSIX-based systems is
.IP
__projectroot__/lib/X11/%L/%T/%N%C%S:__projectroot__/lib/X11/%l/%T/%N%C%S:\\
.br
__projectroot__/lib/X11/%T/%N%C%S:__projectroot__/lib/X11/%L/%T/%N%S:\\
.br
__projectroot__/lib/X11/%l/%T/%N%S:__projectroot__/lib/X11/%T/%N%S
.LP
Using this example, if the user has specified a language, it will be
used as a subdirectory of __projectroot__/lib/X11 that will be searched
for other files. If the desired file is not found there, the lookup
will be tried again using just the language part of the specification.
If the file is not there, it will be looked for in
__projectroot__/lib/X11. The \fItype\fP parameter is used as a
subdirectory of the language directory or of __projectroot__/lib/X11,
and \fIsuffix\fP is appended to the file name.
.LP
The %D substitution allows the addition of path
elements to the implementation-specific default path, typically to
allow additional directories to be searched without preventing
resources in the system directories from being found. For example, a
user installing resource files under a directory called ``ourdir''
might set
.B \s-1XFILESEARCHPATH\s+1
to
.IP
%D:ourdir/%T/%N%C:ourdir/%T/%N
.LP
The customization string is obtained by querying the resource database
currently associated with the display (the database returned by
.BR XrmGetDatabase )
for the resource \fIapplication_name\fP.customization, class
\fIapplication_class\fP.Customization where \fIapplication_name\fP
and \fIapplication_class\fP are the values returned by
.BR XtGetApplicationNameAndClass .
If no value is specified in the database, the empty string is used.
.LP
It is the responsibility of the caller to free the returned string using
.B XtFree
when it is no longer needed.
.SH "SEE ALSO"
.br
\fI\*(xT\fP
.br
\fI\*(xL\fP
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