view lib-src/make-mswin-unicode.pl @ 814:a634e3b7acc8

[xemacs-hg @ 2002-04-14 12:41:59 by ben] latest changes TODO.ben-mule-21-5: Update. make-docfile.c: Add basic support for handling ISO 2022 doc strings -- we parse the basic charset designation sequences so we know whether we're in ASCII and have to pay attention to end quotes and such. Reformat code according to coding standards. abbrev.el: Add `global-abbrev-mode', which turns on or off abbrev-mode in all buffers. Added `defining-abbrev-turns-on-abbrev-mode' -- if non-nil, defining an abbrev through an interactive function will automatically turn on abbrev-mode, either globally or locally depending on the command. This is the "what you'd expect" behavior. indent.el: general function for indenting a balanced expression in a mode-correct way. Works similar to indent-region in that a mode can specify a specific command to do the whole operation; if not, figure out the region using forward-sexp and indent each line using indent-according-to-mode. keydefs.el: Removed. Modify M-C-backslash to do indent-region-or-balanced-expression. Make S-Tab just insert a TAB char, like it's meant to do. make-docfile.el: Now that we're using the call-process-in-lisp, we need to load an extra file win32-native.el because we're running a bare temacs. menubar-items.el: Totally redo the Cmds menu so that most used commands appear directly on the menu and less used commands appear in submenus. The old way may have been very pretty, but rather impractical. process.el: Under Windows, don't ever use old-call-process-internal, even in batch mode. We can do processes in batch mode. subr.el: Someone recoded truncate-string-to-width, saying "the FSF version is too complicated and does lots of hard-to-understand stuff" but the resulting recoded version was *totally* wrong! it misunderstood the basic point of this function, which is work in *columns* not chars. i dumped ours and copied the version from FSF 21.1. Also added truncate-string-with-continuation-dots, since this idiom is used often. config.inc.samp, xemacs.mak: Separate out debug and optimize flags. Remove all vestiges of USE_MINIMAL_TAGBITS, USE_INDEXED_LRECORD_IMPLEMENTATION, and GUNG_HO, since those ifdefs have long been removed. Make error-checking support actually work. Some rearrangement of config.inc.samp to make it more logical. Remove callproc.c and ntproc.c from xemacs.mak, no longer used. Make pdump the default. lisp.h: Add support for strong type-checking of Bytecount, Bytebpos, Charcount, Charbpos, and others, by making them classes, overloading the operators to provide integer-like operation and carefully controlling what operations are allowed. Not currently enabled in C++ builds because there are still a number of compile errors, and it won't really work till we merge in my "8-bit-Mule" workspace, in which I make use of the new types Charxpos, Bytexpos, Memxpos, representing a "position" either in a buffer or a string. (This is especially important in the extent code.) abbrev.c, alloc.c, eval.c, buffer.c, buffer.h, editfns.c, fns.c, text.h: Warning fixes, some of them related to new C++ strict type checking of Bytecount, Charbpos, etc. dired.c: Caught an actual error due to strong type checking -- char len being passed when should be byte len. alloc.c, backtrace.h, bytecode.c, bytecode.h, eval.c, sysdep.c: Further optimize Ffuncall: -- process arg list at compiled-function creation time, converting into an array for extra-quick access at funcall time. -- rewrite funcall_compiled_function to use it, and inline this function. -- change the order of check for magic stuff in SPECBIND_FAST_UNSAFE to be faster. -- move the check for need to garbage collect into the allocation code, so only a single flag needs to be checked in funcall. buffer.c, symbols.c: add debug funs to check on mule optimization info in buffers and strings. eval.c, emacs.c, text.c, regex.c, scrollbar-msw.c, search.c: Fix evil crashes due to eistrings not properly reinitialized under pdump. Redo a bit some of the init routines; convert some complex_vars_of() into simple vars_of(), because they didn't need complex processing. callproc.c, emacs.c, event-stream.c, nt.c, process.c, process.h, sysdep.c, sysdep.h, syssignal.h, syswindows.h, ntproc.c: Delete. Hallelujah, praise the Lord, there is no god but Allah!!! fix so that processes can be invoked in bare temacs -- thereby eliminating any need for callproc.c. (currently only eliminated under NT.) remove all crufty and unnecessary old process code in ntproc.c and elsewhere. move non-callproc-specific stuff (mostly environment) into process.c, so callproc.c can be left out under NT. console-tty.c, doc.c, file-coding.c, file-coding.h, lstream.c, lstream.h: fix doc string handling so it works with Japanese, etc docs. change handling of "character mode" so callers don't have to manually set it (quite error-prone). event-msw.c: spacing fixes. lread.c: eliminate unused crufty vintage-19 "FSF defun hack" code. lrecord.h: improve pdump description docs. buffer.c, ntheap.c, unexnt.c, win32.c, emacs.c: Mule-ize some unexec and startup code. It was pseudo-Mule-ized before by simply always calling the ...A versions of functions, but that won't cut it -- eventually we want to be able to run properly even if XEmacs has been installed in a Japanese directory. (The current problem is the timing of the loading of the Unicode tables; this will eventually be fixed.) Go through and fix various other places where the code was not Mule-clean. Provide a function mswindows_get_module_file_name() to get our own name without resort to PATH_MAX and such. Add a big comment in main() about the problem with Unicode table load timing that I just alluded to. emacs.c: When error-checking is enabled (interpreted as "user is developing XEmacs"), don't ask user to "pause to read messages" when a fatal error has occurred, because it will wedge if we are in an inner modal loop (typically when a menu is popped up) and make us unable to get a useful stack trace in the debugger. text.c: Correct update_entirely_ascii_p_flag to actually work. lisp.h, symsinit.h: declarations for above changes.
author ben
date Sun, 14 Apr 2002 12:43:31 +0000
parents a5954632b187
children ecf1ebac70d8
line wrap: on
line source

: #-*- Perl -*-

### make-mswin-unicode --- generate Unicode-encapsulation code for MS Windows

## Copyright (C) 2001, 2002 Ben Wing.

## Author: Ben Wing <ben@xemacs.org>
## Maintainer: Ben Wing <ben@xemacs.org>
## Current Version: 1.0, August 24, 2001

## This file is part of XEmacs.

## XEmacs is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.

## XEmacs is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.

## You should have received a copy of the GNU General Public License
## along with XEmacs; see the file COPYING.  If not, write to the Free
## Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
## 02111-1307, USA.

eval 'exec perl -w -S $0 ${1+"$@"}'
  if 0;

use strict;
use File::Basename;
use Getopt::Long;

my ($myName, $myPath) = fileparse ($0);

my $usage="
Usage: $myName [--c-output FILE] [--h-output FILE] [--help] [FILES ...]

The purpose of this script is to auto-generate Unicode-encapsulation
code for MS Windows library functions that come in two versions (ANSI
and Unicode).  The MS Windows header files provide a way of
automatically calling the right version, but only at compile-time,
which is *NOT* sufficient for any real-world program.  The solution is
run-time Unicode encapsulation, which is not conceptually difficult
but is time-consuming, and is not supported standardly only due to
evil marketing decisions made by Microsoft.  See src/intl-win32.c
for more information.

In XEmacs, this file is normally run using `nmake -f xemacs.mak
unicode-encapsulate'.

This script processes the specified files, looking for commands
indicating library routines to Unicode-encapsulate, as follows:

Portions of the files that should be processed are enclosed in lines
consisting only of the words \"begin-unicode-encapsulation-script\"
and \"end-unicode-encapsulation-script\".  More than one section can
occur in a single file.  Processed lines begin with a command word,
followed by one or more args (no quotes are necessary for spaces):

file specifies a file to start reading from.
yes indicates a function to be automatically Unicode-encapsulated.
   (All parameters either need no special processing or are LPTSTR or
   LPCTSTR.)
soon indicates a function that should be automatically Unicode-encapsulated,
   but we're not ready to process it yet.
no indicates a function we don't support (it will be #defined to cause
   a compile error, with the text after the function included in the
   erroneous definition to indicate why we don't support it).
skip indicates a function we support manually; only a comment about this
   will be generated.
split indicates a function with a split structure (different versions
   for Unicode and ANSI), but where the only difference is in pointer
   types, and the actual size does not differ.  The structure name
   should follow the function name, and it will be automatically
   Unicode-encapsulated with appropriate casts.
begin-bracket indicates a #if statement to be inserted here.
end-bracket indicates the corresponding #endif statement.
blank lines and lines beginning with // are ignored.
";

# ------------------ process command-line options ------------------

my %options;
my @SAVE_ARGV = @ARGV;

$Getopt::Long::ignorecase = 0;
&GetOptions (
	     \%options,
	     'c-output=s',
	     'h-output=s',
             'includedir=s',
	     'help',
	    );

die $usage if $options{"help"};

my $in_script;
my $slurp;

my ($cout, $hout, $dir) = ($options{"c-output"},
                          $options{"h-output"},
                          $options{"includedir"});
if (!$dir)
  {
    $dir=$ENV{"MSVCDIR"} or die "Environment variable MSVCDIR undefined - run vcvars32.bat from your MSVC installation";
    $dir.='/include';
  }
die "Can't find MSVC include files in \"$dir\"" unless (-f $dir.'/WINDOWS.H');

open (COUT, ">$cout") or die "Can't open C output file $cout: $!";
open (HOUT, ">$hout") or die "Can't open C output file $hout: $!";

select (STDOUT); $| = 1;

print COUT "/* Automatically-generated Unicode-encapsulation file,
   using the command

   $myPath$myName @SAVE_ARGV

   Do not edit.  See `$myName'.
*/

#include <config.h>
#include \"lisp.h\"

#include \"syswindows.h\"

";
print HOUT "/* Automatically-generated Unicode-encapsulation header file.
   Do not edit.  See `$myName'.
*/\n\n";

my %files;
my %processed;
my %bracket;

my $current_file;
my @current_bracket;

while (<>)
  {
    chomp;
    # remove trailing CR. #### Should not be necessary!  Perl should be
    # opening these in text mode by default, as the docs claim, and
    # automatically remove the CR's.
    tr/\r//d;

  if (/^begin-unicode-encapsulation-script$/)
    {
      $in_script = 1;
    }
    elsif (/^end-unicode-encapsulation-script$/)
      {
	$in_script = 0;
      }
    elsif ($in_script)
      {
	next if (m!^//!);
	next if (/^[ \t]*$/);
	if (/(file|yes|soon|no|skip|split|begin-bracket|end-bracket)(?: (.*))?/)
	  {
	    my ($command, $parms) = ($1, $2);
	    if ($command eq "file")
	      {
		$current_file = $parms;
	      }
	    elsif ($command eq "begin-bracket")
	      {
		my $current_bracket = $current_bracket[$#current_bracket];
		if (defined ($current_bracket))
		  {
		    $current_bracket .= "&& $parms";
		  }
		else
		  {
		    $current_bracket = "$parms";
		  }
		push @current_bracket, $current_bracket;
	      }
	    elsif ($command eq "end-bracket")
	      {
		pop @current_bracket;
	      }
	    else
	      {
		my ($fun, $reason) = split /\s+/, $parms, 2;
		$files{$current_file}{$fun} = [$command, $reason];
		$bracket{$current_file}{$fun} =
		  $current_bracket[$#current_bracket];
	      }
	  }
	else
	  {
	    print "WARNING: Unknown line $_\n";
	  }
      }
  }


foreach my $file (keys %files)
  {
    $slurp = &FileContents ($file);
    print "Processing file $file\n";
    print HOUT "\n/* Processing file $file */\n\n";
    my $totalspace = 70 - length ("Processing file $file");
    $totalspace = 0 if $totalspace < 0;
    my $alignspaceleft = $totalspace / 2;
    my $alignspaceright = ($totalspace + 1) / 2;
    print COUT "
/*----------------------------------------------------------------------*/
/*" . (" " x $alignspaceleft) . "Processing file $file" .
  (" " x $alignspaceright) . "*/
/*----------------------------------------------------------------------*/

";

    my ($ws_re, $must_ws_re, $tok_ch) =
      ("\\s*", "\\s+", "\\w");
    # unfortunately there is no surefire way short of
    # parsing all include files for typedefs to
    # distinguish types from parameters, and prototypes
    # appear in the include files both with and without
    # parameters -- the latter kinds appear in a very
    # different style and were obviously added later.  so
    # we rely on the fact that defined types are all
    # upper-case, and parameters generally are not, and
    # special-case the exceptions.
    my $typeword_re =
      # note the negative lookahead assertions: the first
      # one excludes the words "X" and "Y" from type
      # words, since they appear as parameter names in
      # CreateWindowEx; the second prevents "void
      # *Argument" from being parsed as a type "void *A"
      # followed by a parameter "rgument".
      "(?:(?!(?:X\\b|Y\\b))(?:unsigned|int|long|short|va_list|[A-Z_0-9]+)(?!${tok_ch}))";
    my $typetoken_re = "(?:$typeword_re$ws_re\\**$ws_re)";
    my $arg_re = "(?:($typetoken_re+)(${tok_ch}+)?(?: OPTIONAL)?)";
    my $fun_re = "(SHSTDAPI_\\(${tok_ch}+\\)|${tok_ch}" . "[A-Za-z_0-9 \t\n\r\f]*?${tok_ch})${ws_re}(${tok_ch}+)W${ws_re}\\(((${ws_re}${arg_re}${ws_re},)*${ws_re}${arg_re}${ws_re})\\);";

    # print "regexp: $fun_re\n";
    while ($slurp =~ /$fun_re/g)
      {
	my ($rettype, $fun, $args) = ($1, $2, $3);
	$processed{$fun} = 1;
	print "Processing: $fun";

	my ($command, $reason) = ($files{$file}{$fun}[0], $files{$file}{$fun}[1]);
	if (!defined ($command))
	  {
	    print " (no command found)\n";
	  }
	else
	  {
	    print "\n";
	    my $bracket = $bracket{$file}{$fun};
	    if (defined ($bracket))
	      {
		print HOUT "#if $bracket\n";
		print COUT "#if $bracket\n\n";
	      }
	    if ($command eq "no")
	      {
		if (!defined ($reason))
		  {
		    print "WARNING: No reason given for `no' with function $fun\n";
		    $reason = "";
		  }

		print HOUT "#undef $fun\n";
		print HOUT "#define $fun error $reason\n";
		print COUT "/* Error if $fun used: $reason */\n\n";
	      }
	    elsif ($command eq "skip")
	      {
		if (!defined ($reason))
		  {
		    print "WARNING: No reason given for `skip' with function $fun\n";
		    $reason = "";
		  }

		print HOUT "/* Skipping $fun because $reason */\n";
		print COUT "/* Skipping $fun because $reason */\n\n";
	      }
	    elsif ($command eq "soon")
	      {
		$reason = "" if !defined ($reason);

		print HOUT "/* Not yet: $fun $reason */\n";
		print COUT "/* Not yet: $fun $reason */\n\n";
	      }
	    else
	      {
		my (@args, %argtype, %ansiarg, %xarg, $split_struct,
		    $split_rettype);
		if ($command eq "split")
		  {
		    ($split_struct, $reason) = split /\s+/, $reason, 2;
		  }
		my $argno = 0;
		while ($args =~ /$arg_re/g)
		  {
		    $argno++;
		    my ($argtype, $argname) = ($1, $2);
		    $argtype =~ s/\s*$//;
		    next if $argtype eq "void" || $argtype eq "VOID";
		    $argname = "arg$argno" if !defined ($argname);
		    $argtype{$argname} = $argtype;
		    $ansiarg{$argname} = $argtype;
		    $ansiarg{$argname} =~ s/\bLPWSTR\b/LPSTR/;
		    $ansiarg{$argname} =~ s/\bLPCWSTR\b/LPCSTR/;
		    $xarg{$argname} = $argtype;
		    $xarg{$argname} =~ s/\bLPWSTR\b/Extbyte */;
		    $xarg{$argname} =~ s/\bLPCWSTR\b/const Extbyte */;
		    if (defined ($split_struct))
		      {
			my $fuck_cperl1 = "\\b${split_struct}W\\b";
			my $fuck_cperl2 = "${split_struct}A";
			$ansiarg{$argname} =~ s/$fuck_cperl1/$fuck_cperl2/;
		      }
		    push @args, $argname;
		}
		$rettype =~ s/\bSHSTDAPI_\((.*)\)/$1/;
		$rettype =~ s/\s*WIN\w*?API\s*//g;
		$rettype =~ s/\bAPIENTRY\b//;
		$rettype =~ s/\bSHSTDAPI\b/HRESULT/;
		if ($rettype =~ /LPC?WSTR/)
		  {
		    $split_rettype = 1;
		    $rettype =~ s/\bLPWSTR\b/Extbyte */;
		    $rettype =~ s/\bLPCWSTR\b/const Extbyte */;
		  }
		print HOUT "#ifdef ERROR_WHEN_NONINTERCEPTED_FUNS_USED\n";
		print HOUT "#undef $fun\n";
		print HOUT "#define $fun error use qxe$fun or ${fun}A/${fun}W\n";
		print HOUT "#endif\n";
		if (defined ($reason))
		  {
		    print COUT "/* NOTE: $reason */\n";
		  }
		print COUT "$rettype\nqxe$fun (";
		print HOUT "$rettype qxe$fun (";
		my $first = 1;
		if (!@args)
		  {
		    print COUT "void";
		    print HOUT "void";
		  }
		else
		  {
		    foreach my $x (@args)
		      {
			print COUT ", " if !$first;
			print HOUT ", " if !$first;
			$first = 0;
			print COUT "$xarg{$x} $x";
			print HOUT "$xarg{$x} $x";
		      }
		  }
		print HOUT ");\n";
		print COUT ")\n{\n  if (XEUNICODE_P)\n    ";
		if ($rettype ne "void" && $rettype ne "VOID")
		  {
		    print COUT "return ";
		    print COUT "($rettype) " if $split_rettype;
		  }
		print COUT "${fun}W (";
		$first = 1;
		foreach my $x (@args)
		  {
		    print COUT ", " if !$first;
		    $first = 0;
		    print COUT ($argtype{$x} eq $xarg{$x} ? $x :
				"($argtype{$x}) $x");
		  }
		print COUT ");\n  else\n    ";
		if ($rettype ne "void" && $rettype ne "VOID")
		  {
		    print COUT "return ";
		    print COUT "($rettype) " if $split_rettype;
		  }
		print COUT "${fun}A (";
		$first = 1;
		foreach my $x (@args)
		  {
		    print COUT ", " if !$first;
		    $first = 0;
		    print COUT ($argtype{$x} eq $ansiarg{$x} ? $x :
				"($ansiarg{$x}) $x");
		  }
		print COUT ");\n}\n\n";
	      }
	    if (defined ($bracket))
	      {
		print HOUT "#endif /* $bracket */\n";
		print COUT "#endif /* $bracket */\n\n";
	      }
	    print HOUT "\n";
	  }
      }
  }

foreach my $file (keys %files)
  {
    foreach my $fun (keys %{$files{$file}})
      {
	if (!$processed{$fun} && $files{$file}{$fun}[0] =~ /^(yes|soon|split)$/)
	  {
	    print "WARNING: Can't locate prototype for $fun\n";
	  }
      }
  }


sub FileContents
{
  local $/ = undef;
  open (FILE, "< $dir/$_[0]") or die "$dir/$_[0]: $!";
  my $retval = scalar <FILE>;
  # must hack away CRLF junk.
  $retval =~ s/\r\n/\n/g;
  return $retval;
}