.\" $XConsortium: appA,v 1.5 91/07/31 20:24:51 swick Exp $
.\"
.\" Copyright 1985, 1986, 1987, 1988, 1991
.\" Massachusetts Institute of Technology, Cambridge, Massachusetts,
.\" and Digital Equipment Corporation, Maynard, Massachusetts.
.\"
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.\" purpose and without fee is hereby granted, provided that the above copyright
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.\" to distribution of the software without specific, written prior permission.
.\" M.I.T and Digital makes no representations about the suitability of the
.\" software described herein for any purpose.
.\" It is provided ``as is'' without express or implied warranty.
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\s+1\fBAppendix A\fP\s-1

\s+1\fBResource File Format\fP\s-1
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\fBAppendix A \- Resource File Format\fP
.XE
A resource file contains text representing the default resource values for an
application or set of applications.
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The format of resource files is defined by \fI\*(xL\fP and is reproduced here
for convenience only. 
.LP
The format of a resource specification is
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l l .
ResourceLine	= Comment | IncludeFile | ResourceSpec | <empty line>
Comment	= ``!'' {<any character except null or newline>}
IncludeFile	= ``#'' WhiteSpace ``include'' WhiteSpace FileName WhiteSpace
FileName	= <valid filename for operating system>
ResourceSpec	= WhiteSpace ResourceName WhiteSpace ``:'' WhiteSpace Value
ResourceName	= [Binding] {Component Binding} ComponentName
Binding	= ``.'' | ``*''
WhiteSpace	= {<space> | <horizontal tab>}
Component	= ``?'' | ComponentName
ComponentName	= NameChar {NameChar}
NameChar	= ``a''-``z'' | ``A''-``Z'' | ``0''-``9'' | ``_'' | ``-''
Value	= {<any character except null or unescaped newline>}
.TE
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Elements separated by vertical bar (|) are alternatives.
Curly braces ({\&.\&.\&.}) indicate zero or more repetitions
of the enclosed elements.
Square brackets ([\&.\&.\&.]) indicate that the enclosed element is optional.
Quotes (``\&.\&.\&.'') are used around literal characters.
.LP
If the last character on a line is a backslash (\\),
that line is assumed to continue on the next line.
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To allow a Value to begin with whitespace,
the two-character sequence ``\\\^\fIspace\fP'' (backslash followed by space)
is recognized and replaced by a space character,
and the two-character sequence ``\\\^\fItab\fP''
(backslash followed by horizontal tab)
is recognized and replaced by a horizontal tab character.

To allow a Value to contain embedded newline characters,
the two-character sequence ``\\\^n'' is recognized and replaced by a
newline character.
To allow a Value to be broken across multiple lines in a text file,
the two-character sequence ``\\\^\fInewline\fP''
(backslash followed by newline) is
recognized and removed from the value.

To allow a Value to contain arbitrary character codes,
the four-character sequence ``\\\^\fInnn\fP'',
where each \fIn\fP is a digit character in the range of ``0''\-``7'',
is recognized and replaced with a single byte that contains
the octal value specified by the sequence.
Finally, the two-character sequence ``\\\\'' is recognized
and replaced with a single backslash.