# -*- perl -*-
#
# $Id: verbatim.perl,v 1.10 2001/11/29 21:44:13 RRM Exp $
# verbatim.perl
#   Jens Lippmann <lippmann@rbg.informatik.tu-darmstadt.de> 17-DEC-96
#
# Extension to LaTeX2HTML to support the verbatim.sty LaTeX2e package.
#
# Change Log:
# ===========
#  jcl = Jens Lippmann
#
# $Log: verbatim.perl,v $
# Revision 1.10  2001/11/29 21:44:13  RRM
#  --  update to use  &replace_all_html_special_chars  if defined
#
# Revision 1.9  1999/10/15 09:17:16  RRM
#  --  enable link to stylesheet "verbatim" class
#
# Revision 1.8  1999/09/14 22:02:02  MRO
#
# -- numerous cleanups, no new features
#
# Revision 1.7  1999/04/09 18:15:17  JCL
# changed my e-Mail address
#
# Revision 1.6  1998/12/02 01:25:19  RRM
#  --  preserve styles around the use of  \verbatiminput
#  --  wrap the \verbatiminput command; i.e. treat as an environment
#
# Revision 1.5  1998/03/22 20:52:49  latex2html
# reviewed for 98.1, works & is testable via devel/tests/regr/verbatim/run
#
# Revision 1.4  1998/02/19 22:24:33  latex2html
# th-darmstadt -> tu-darmstadt
#
# Revision 1.3  1996/12/23 01:33:58  JCL
# uses now shell variable TEXINPUTS (this is set up by LaTeX2HTML before)
# to locate the input file
#
# Revision 1.2  1996/12/18 04:30:32  JCL
# was formerly verbatimfiles.perl, however, its face changed
# quite much
#
#
# Note:
# This module provides translation for the \verbatiminput command of
# the verbatim.sty package.
# The comment/verbatim environments are handled by LaTeX2HTML itself.
#
# The naming of verbatim.sty is a bit blurred.
# Here are the versions which are available, together with their
# identification:
#  o dbtex verbatim.sty by Rowley/Clark
#    Provides:
#    - \verbatimfile, \verbatimlisting
#    It is also named verbatimfiles.sty, and supported by
#    verbatimfiles.perl.
# 
#  o verbatim.sty 1.4a (jtex), 1.4d (ogfuda), 1.4i (AMS LaTeX),
#    1.5i (LaTeX2e) by Sch"opf
#    Provides:
#    - verbatim environment, comment environment, \verbatiminput
#    Supported by this Perl module.
# 
#  o FWEB verbatim.sty
#    Provides:
#    - verbatim environment, \verbfile, \listing, \sublisting
#    Currently not supported by LaTeX2HTML.

package main;

sub do_cmd_verbatiminput {
    local($outer) = @_;
    local($_,$found,$file,$file2);

    $file = &missing_braces unless (
        ($outer =~ s/$next_pair_pr_rx/$file=$2;''/eo)
        ||($outer =~ s/$next_pair_rx/$file=$2;''/eo));

    $file2 = "$file.tex";
    if ($file !~ /\.tex$/) {
	# 2nd choice is better than 1st - TeXnical quirk
	($file,$file2) = ($file2,$file);
    }
    foreach $dir ("$texfilepath", split(/:/,$ENV{'TEXINPUTS'})) { 
	if (-f ($_ = "$dir/$file") || -f ($_ = "$dir/$file2")) {
	    $found=1;
	    #overread $_ with file contents
	    &slurp_input($_);
	    last;
	}
    }
    &write_warnings("No file <$file> for verbatim input.")
	unless $found;

    local($closures,$reopens) = &preserve_open_tags;
    # pre_process file contents
    if (defined &replace_all_html_special_chars) {
	&replace_all_html_special_chars;
    } else {
	&replace_html_special_chars;
    }
    s/\n$//;		# vertical space is contributed by </PRE> already.
    # %verbatim not coupled to a dbm => will not work in subprocesses, but don't mind
    $verbatim{++$global{'verbatim_counter'}} = $_;

    my ($verb_pre, $verb_post) = ('<PRE>','</PRE>');
    if ($USING_STYLES) {
	$env_id .= ' CLASS="verbatim"' unless ($env_id =~ /(^|\s)CLASS\s*\=/i);
	$verb_pre =~ s/>/ $env_id>/;
    }
    join('', $closures, "<BR>\n", $verb_pre
	, $verbatim_mark, 'verbatim', $global{'verbatim_counter'}
	, '#', $verb_post, $reopens, $outer);
}

&process_commands_wrap_deferred (<<_RAW_ARG_DEFERRED_CMDS_);
verbatiminput # {}
_RAW_ARG_DEFERRED_CMDS_

1;			# Must be last line