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<HTML><HEAD><TITLE>Xlib Programming Manual: Resource File Syntax</TITLE></HEAD><BODY><H1 ALIGN=center>15.1 Resource File Syntax</H1>The syntax of a resource file is a sequence of resource linesterminated by newline characters or the end of the file.The syntax of an individual resource line is:<P><PRE><CODE>ResourceLine = Comment | IncludeFile | ResourceSpec | <empty line>Comment = "!" {<any character except null or newline>}IncludeFile = "#" WhiteSpace "include" WhiteSpace FileName WhiteSpaceFileName = <valid filename for operating system>ResourceSpec = WhiteSpace ResourceName WhiteSpace ":" WhiteSpace ValueResourceName = [Binding] {Component Binding} ComponentNameBinding = "." | "*"WhiteSpace = {<space> | <horizontal tab>}Component = "?" | ComponentNameComponentName = NameChar {NameChar}NameChar = "a"-"z" | "A"-"Z" | "0"-"9" | "_" | "-"Value = {<any character except null or unescaped newline>}</PRE></CODE><P>Elements separated by vertical bar (|) are alternatives.Curly braces ({...}) indicate zero or more repetitionsof the enclosed elements.Square brackets ([...]) indicate that the enclosed element is optional.Quotes ("...") are used around literal characters.<P>IncludeFile lines are interpreted by replacing the line with thecontents of the specified file.The word ``include'' must be in lowercase.The file name is interpreted relative to the directory of the file inwhich the line occurs (for example, if the file name contains nodirectory or contains a relative directory specification).<P>If a ResourceName contains a contiguous sequence of two or more Bindingcharacters, the sequence will be replaced with single ``.'' characterif the sequence contains only ``.'' characters;otherwise, the sequence will be replaced with a single ``*'' character.<P>A resource database never contains more than one entry for a givenResourceName. If a resource file contains multiple lines with thesame ResourceName, the last line in the file is used.<P>Any white space characters before or after the name or colon in a ResourceSpecare ignored.To allow a Value to begin with white space,the two-character sequence ``\<I>space</I>'' (backslash followed by space)is recognized and replaced by a space character,and the two-character sequence ``\<I>tab</I>''(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 anewline character.To allow a Value to be broken across multiple lines in a text file,the two-character sequence ``\<I>newline</I>''(backslash followed by newline) isrecognized and removed from the value.To allow a Value to contain arbitrary character codes,the four-character sequence ``\<I>nnn</I>'',where each <I>n</I> is a digit character in the range of ``0''-``7'',is recognized and replaced with a single byte that containsthe octal value specified by the sequence.Finally, the two-character sequence ``\\'' is recognizedand replaced with a single backslash.<P>As an example of these sequences,the following resource line contains a value consisting of fourcharacters: a backslash, a null, a ``z'', and a newline:<BLOCKQUOTE><PRE>magic.values: \\\000\z\n</PRE></BLOCKQUOTE><H5 ALIGN=right><I>Next: <A HREF="matching-rules.html">Resource Manager Matching Rules</A></I></H5><HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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