Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!convex!connolly
From: connolly@convex.com (Dan Connolly)
Newsgroups: comp.windows.x.motif
Subject: Re: UIL -> C converter
Message-ID: <connolly.676944889@convex.convex.com>
Date: 15 Jun 91 00:14:49 GMT
References: <7061@bwdls58.bnr.ca> <1991Jun14.150955.25245@auto-trol.com>
Sender: usenet@convex.com (news access account)
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
Lines: 73
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In <1991Jun14.150955.25245@auto-trol.com> marbru@auto-trol.com (Martin Brunecky) writes:

>In article <7061@bwdls58.bnr.ca> sami@bwdlh312.bnr.ca (Sami Boulos) writes:
>>
>>Is there a tool that converts UIL to C code? 
>>The reason I ask this question is to permit me to write UIL code, 
>>convert it to C, and compile the C code with the rest of my 
>>code, instead of having to perform file I/O in reading a .uid 
>>file.
>>
>    No, I doubt there is an UIL->C converter. For the obvious reason:
>    it is the worst thing to do. However, some of the new generation
>    UI munglers may be able to read UIL file and spit out either UIL
>    or "C".

>    But. Why to do it ? If you don't like the UIL overhead, just simply
>    use Wcl ! This one adds no runtime overhead - the widget creation
>    behavior/flow is identical to your "C" code (in fact, it IS the C
>    code creating your widgets - Widget Creation Library -). 
>    Your UI definition still remains separate from you "C" code, so
>    nothing hardcoded. Yes, you get an overhead of resource file read,
>    but Xt does not ask you and ALWAYS tries to read those resource files,

Not necessarily: I use the normal run-time reading of resource files for
prototyping and development, but when I'm ready to build the production
version, I translate the resource file into a C array (we love Perl :),
and use it as the fallback_resources argument when I initialize Xt.

Win win.

We love Wcl.

p.s. No guarantees, but here's the perl script:


#!/usr/local/bin/perl
#
# convert a resource file into a C array of resource strings
#

print <<EOF;
/* automatically generated: do not edit! */
typedef char* String;

String interface_resources[] = {
EOF


while(<>){
  next if /^#/;
  local ($c);

  next if /^\s*!/; #skip !-style comments
  next unless /\S/; #and blank lines

  chop;

#continue lines ending in \
  while(/\\$/){
    chop;
    $_ .= <>;
    chop;
  }

  s/\\/\\\\/g;
  s/"/\\"/g;
  print "\"$_\",\n";
}

print <<EOF
  0
  };
EOF