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Top Forums Programming Tools for writing a simple syntax checker? Post 302280158 by Ilja on Monday 26th of January 2009 07:47:48 AM
Old 01-26-2009
This is actually what I'm trying to do:
Code:
Keyword1 Keyword2 IdPrefix_IdBody_IdSuffix

I want to check that "Keyword1" is actually followed by "Keyword2" etc.
Lines like these should be rejected:
Code:
Keyword1 IdPrefix_IdBody_IdSuffix
Keyword1 Unknown IdPrefix_IdBody_IdSuffix
Keyword2 Keyword1 IdPrefix_IdBody_IdSuffix
Keyword1 Keyword2 IdBody_IdSuffix
Keyword1 Keyword2 IdPrefix_IdBody
Keyword1 Keyword2 IdPrefix_Unknown_IdSuffix

This should be a simple task, but I fail. I'd like some sort of lookahead in Flex or ability to invert match.
 

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SGMLCHECK(1)						      General Commands Manual						      SGMLCHECK(1)

NAME
sgmlcheck - check the syntax of an LinuxDoc DTD sgml source file SYNOPSIS
sgmlcheck file[.sgml] DESCRIPTION
sgmlcheck is an old and obsoleted form of the SGML source checker command of LinuxDoc-Tools. It is recommended to switch the new form lin- uxdoc -B check now. It runs an SGML parse on the specified document source. Any errors are reported to standard output. No formatted version of the source is produced. Note that sgmlcheck preprocesses the LinuxDoc DTD SGML source, doing the conditionalization described by any <#if></#if> and <#unless></#unless> tags. Document sources containing these tags will confuse a standalone SGML parser. OPTIONS
None. The generic options described in linuxdoc(1) are accepted, but have no effect (except for -D). FILES
Many files and executables in /usr/share/linuxdoc-tools and /usr/bin are used. BUGS
None known. AUTHOR
Originally written by Cees de Groot <cg@cdegroot.com> as sgmlcheck for SGML-Tools v1. Currently maintained by Taketoshi Sano <sano@debian.org> for Linuxdoc-Tools. SEE ALSO
linuxdoc(1), sgml2html(1), sgml2info(1), sgml2latex(1), sgml2rtf(1), sgml2txt(1). 16 May 2000 SGMLCHECK(1)
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