# python.perl by Fred L. Drake, Jr. -*- perl -*- # # Heavily based on Guido van Rossum's myformat.perl (now obsolete). # # Extension to LaTeX2HTML for documents using myformat.sty. # Subroutines of the form do_cmd_ here define translations # for LaTeX commands \ defined in the corresponding .sty file. package main; use File::Basename; sub next_argument{ my $param; $param = missing_braces() unless ((s/$next_pair_pr_rx/$param=$2;''/eo) ||(s/$next_pair_rx/$param=$2;''/eo)); return $param; } sub next_optional_argument{ my($param,$rx) = ('', "^\\s*(\\[([^]]*)\\])?"); s/$rx/$param=$2;''/eo; return $param; } sub make_icon_filename($){ my($myname, $mydir, $myext) = fileparse(@_[0], '\..*'); chop $mydir; if ($mydir eq '.') { $mydir = $ICONSERVER; } $myext = ".$IMAGE_TYPE" unless $myext; return "$mydir$dd$myname$myext"; } sub get_link_icon($){ my $url = @_[0]; if ($OFF_SITE_LINK_ICON && ($url =~ /^[-a-zA-Z0-9.]+:/)) { # absolute URL; assume it points off-site my $icon = make_icon_filename($OFF_SITE_LINK_ICON); return (" \"[off-site"); } return ''; } # This is a fairly simple hack; it supports \let when it is used to create # (or redefine) a macro to exactly be some other macro: \let\newname=\oldname. # Many possible uses of \let aren't supported or aren't supported correctly. # sub do_cmd_let{ local($_) = @_; my $matched = 0; s/[\\]([a-zA-Z]+)\s*(=\s*)?[\\]([a-zA-Z]*)/$matched=1; ''/e; if ($matched) { my($new, $old) = ($1, $3); eval "sub do_cmd_$new { do_cmd_$old" . '(@_); }'; print "\ndefining handler for \\$new using \\$old\n"; } else { s/[\\]([a-zA-Z]+)\s*(=\s*)?([^\\])/$matched=1; ''/es; if ($matched) { my($new, $char) = ($1, $3); eval "sub do_cmd_$new { \"\\$char\" . \@_[0]; }"; print "\ndefining handler for \\$new to insert '$char'\n"; } else { write_warnings("Could not interpret \\let construct..."); } } return $_; } # the older version of LaTeX2HTML we use doesn't support this, but we use it: sub do_cmd_textasciitilde{ '~' . @_[0]; } sub do_cmd_textasciicircum{ '^' . @_[0]; } sub do_cmd_textbar{ '|' . @_[0]; } sub do_cmd_infinity{ '∞' . @_[0]; } sub do_cmd_plusminus{ '±' . @_[0]; } sub do_cmd_menuselection{ @_[0]; } sub do_cmd_sub{ ' > ' . @_[0]; } # words typeset in a special way (not in HTML though) sub do_cmd_ABC{ 'ABC' . @_[0]; } sub do_cmd_UNIX{ 'Unix'. @_[0]; } sub do_cmd_ASCII{ 'ASCII' . @_[0]; } sub do_cmd_POSIX{ 'POSIX' . @_[0]; } sub do_cmd_C{ 'C' . @_[0]; } sub do_cmd_Cpp{ 'C++' . @_[0]; } sub do_cmd_EOF{ 'EOF' . @_[0]; } sub do_cmd_NULL{ 'NULL' . @_[0]; } sub do_cmd_e{ '\' . @_[0]; } $DEVELOPER_ADDRESS = ''; $SHORT_VERSION = ''; $RELEASE_INFO = ''; $PACKAGE_VERSION = ''; sub do_cmd_version{ $PACKAGE_VERSION . @_[0]; } sub do_cmd_shortversion{ $SHORT_VERSION . @_[0]; } sub do_cmd_release{ local($_) = @_; $PACKAGE_VERSION = next_argument(); return $_; } sub do_cmd_setreleaseinfo{ local($_) = @_; $RELEASE_INFO = next_argument(); return $_; } sub do_cmd_setshortversion{ local($_) = @_; $SHORT_VERSION = next_argument(); return $_; } sub do_cmd_authoraddress{ local($_) = @_; $DEVELOPER_ADDRESS = next_argument(); return $_; } #sub do_cmd_developer{ do_cmd_author(@_[0]); } #sub do_cmd_developers{ do_cmd_author(@_[0]); } #sub do_cmd_developersaddress{ do_cmd_authoraddress(@_[0]); } sub do_cmd_hackscore{ local($_) = @_; next_argument(); return '_' . $_; } sub use_wrappers{ local($_,$before,$after) = @_; my $stuff = next_argument(); return $before . $stuff . $after . $_; } $IN_DESC_HANDLER = 0; sub do_cmd_optional{ if ($IN_DESC_HANDLER) { return use_wrappers(@_[0], "\[", "\]"); } else { return use_wrappers(@_[0], "\[", "\]"); } } # Logical formatting (some based on texinfo), needs to be converted to # minimalist HTML. The "minimalist" is primarily to reduce the size of # output files for users that read them over the network rather than # from local repositories. # \file and \samp are at the end of this file since they screw up fontlock. sub do_cmd_pytype{ return @_[0]; } sub do_cmd_makevar{ return use_wrappers(@_[0], '', ''); } sub do_cmd_code{ return use_wrappers(@_[0], '', ''); } sub do_cmd_module{ return use_wrappers(@_[0], '', ''); } sub do_cmd_keyword{ return use_wrappers(@_[0], '', ''); } sub do_cmd_exception{ return use_wrappers(@_[0], '', ''); } sub do_cmd_class{ return use_wrappers(@_[0], '', ''); } sub do_cmd_function{ return use_wrappers(@_[0], '', ''); } sub do_cmd_constant{ return use_wrappers(@_[0], '', ''); } sub do_cmd_member{ return use_wrappers(@_[0], '', ''); } sub do_cmd_method{ return use_wrappers(@_[0], '', ''); } sub do_cmd_cfunction{ return use_wrappers(@_[0], '', ''); } sub do_cmd_cdata{ return use_wrappers(@_[0], '', ''); } sub do_cmd_ctype{ return use_wrappers(@_[0], '', ''); } sub do_cmd_regexp{ return use_wrappers(@_[0], '', ''); } sub do_cmd_character{ return use_wrappers(@_[0], '"', '"'); } sub do_cmd_program{ return use_wrappers(@_[0], '', ''); } sub do_cmd_programopt{ return use_wrappers(@_[0], '', ''); } sub do_cmd_longprogramopt{ # note that the --- will be later converted to -- by LaTeX2HTML return use_wrappers(@_[0], '---', ''); } sub do_cmd_email{ return use_wrappers(@_[0], ''); } sub do_cmd_mailheader{ return use_wrappers(@_[0], '', ''); } sub do_cmd_mimetype{ return use_wrappers(@_[0], '', ''); } sub do_cmd_var{ return use_wrappers(@_[0], "", ""); } sub do_cmd_dfn{ return use_wrappers(@_[0], '', ''); } sub do_cmd_emph{ return use_wrappers(@_[0], '', ''); } sub do_cmd_file{ return use_wrappers(@_[0], '', ''); } sub do_cmd_filenq{ return do_cmd_file(@_[0]); } sub do_cmd_samp{ return use_wrappers(@_[0], '"', '"'); } sub do_cmd_kbd{ return use_wrappers(@_[0], '', ''); } sub do_cmd_strong{ return use_wrappers(@_[0], '', ''); } sub do_cmd_textbf{ return use_wrappers(@_[0], '', ''); } sub do_cmd_textit{ return use_wrappers(@_[0], '', ''); } sub do_cmd_moreargs{ return '...' . @_[0]; } sub do_cmd_unspecified{ return '...' . @_[0]; } sub do_cmd_refmodule{ # Insert the right magic to jump to the module definition. local($_) = @_; my $key = next_optional_argument(); my $module = next_argument(); $key = $module unless $key; return "$module" . $_; } sub do_cmd_newsgroup{ local($_) = @_; my $newsgroup = next_argument(); my $icon = get_link_icon("news:$newsgroup"); my $stuff = ("" . "$newsgroup$icon"); return $stuff . $_; } sub do_cmd_envvar{ local($_) = @_; my $envvar = next_argument(); my($name,$aname,$ahref) = new_link_info(); # The here is really to keep buildindex.py from making # the variable name case-insensitive. add_index_entry("environment variables!$envvar@$envvar", $ahref); add_index_entry("$envvar (environment variable)", $ahref); $aname =~ s/" . $_; } sub do_cmd_url{ # use the URL as both text and hyperlink local($_) = @_; my $url = next_argument(); my $icon = get_link_icon($url); $url =~ s/~/~/g; return "$url$icon" . $_; } sub do_cmd_manpage{ # two parameters: \manpage{name}{section} local($_) = @_; my $page = next_argument(); my $section = next_argument(); return "$page($section)" . $_; } $PEP_FORMAT = "http://python.sourceforge.net/peps/pep-%04d.html"; #$RFC_FORMAT = "http://www.ietf.org/rfc/rfc%04d.txt"; $RFC_FORMAT = "http://www.faqs.org/rfcs/rfc%d.html"; sub get_rfc_url($$){ my($rfcnum, $format) = @_; return sprintf($format, $rfcnum); } sub do_cmd_pep{ local($_) = @_; my $rfcnumber = next_argument(); my $id = "rfcref-" . ++$global{'max_id'}; my $href = get_rfc_url($rfcnumber, $PEP_FORMAT); my $icon = get_link_icon($href); # Save the reference my $nstr = gen_index_id("Python Enhancement Proposals!PEP $rfcnumber", ''); $index{$nstr} .= make_half_href("$CURRENT_FILE#$id"); return ("PEP $rfcnumber" . "$icon" . $_); } sub do_cmd_rfc{ local($_) = @_; my $rfcnumber = next_argument(); my $id = "rfcref-" . ++$global{'max_id'}; my $href = get_rfc_url($rfcnumber, $RFC_FORMAT); my $icon = get_link_icon($href); # Save the reference my $nstr = gen_index_id("RFC!RFC $rfcnumber", ''); $index{$nstr} .= make_half_href("$CURRENT_FILE#$id"); return ("RFC $rfcnumber" . "$icon" . $_); } sub do_cmd_ulink{ local($_) = @_; my $text = next_argument(); my $url = next_argument(); return "$text" . $_; } sub do_cmd_citetitle{ local($_) = @_; my $url = next_optional_argument(); my $title = next_argument(); my $icon = get_link_icon($url); my $repl = ''; if ($url) { $repl = ("$title$icon"); } else { $repl = "$title"; } return $repl . $_; } sub do_cmd_deprecated{ # two parameters: \deprecated{version}{whattodo} local($_) = @_; my $release = next_argument(); my $reason = next_argument(); return ('
' . "Deprecated since release $release." . "\n$reason

" . $_); } sub versionnote{ # one or two parameters: \versionnote[explanation]{version} my $type = @_[0]; local $_ = @_[1]; my $explanation = next_optional_argument(); my $release = next_argument(); my $text = "$type in version $release."; if ($explanation) { $text = "$type in version $release:\n$explanation."; } return "\n$text\n" . $_; } sub do_cmd_versionadded{ return versionnote('New', @_); } sub do_cmd_versionchanged{ return versionnote('Changed', @_); } # # These function handle platform dependency tracking. # sub do_cmd_platform{ local($_) = @_; my $platform = next_argument(); $ModulePlatforms{"$THIS_MODULE"} = $platform; $platform = "Macintosh" if $platform eq 'Mac'; return "\n

Availability: $platform.

\n" . $_; } $IGNORE_PLATFORM_ANNOTATION = ''; sub do_cmd_ignorePlatformAnnotation{ local($_) = @_; $IGNORE_PLATFORM_ANNOTATION = next_argument(); return $_; } # index commands $INDEX_SUBITEM = ""; sub get_indexsubitem{ return $INDEX_SUBITEM ? " $INDEX_SUBITEM" : ''; } sub do_cmd_setindexsubitem{ local($_) = @_; $INDEX_SUBITEM = next_argument(); return $_; } sub do_cmd_withsubitem{ # We can't really do the right thing, because LaTeX2HTML doesn't # do things in the right order, but we need to at least strip this stuff # out, and leave anything that the second argument expanded out to. # local($_) = @_; my $oldsubitem = $INDEX_SUBITEM; $INDEX_SUBITEM = next_argument(); my $stuff = next_argument(); my $br_id = ++$globals{'max_id'}; my $marker = "$O$br_id$C"; return $stuff . "\\setindexsubitem$marker$oldsubitem$marker" . $_; } # This is the prologue macro which is required to start writing the # mod\jobname.idx file; we can just ignore it. (Defining this suppresses # a warning that \makemodindex is unknown.) # sub do_cmd_makemodindex{ return @_[0]; } # We're in the document subdirectory when this happens! # open(IDXFILE, '>index.dat') || die "\n$!\n"; open(INTLABELS, '>intlabels.pl') || die "\n$!\n"; print INTLABELS "%internal_labels = ();\n"; print INTLABELS "1; # hack in case there are no entries\n\n"; # Using \0 for this is bad because we can't use common tools to work with the # resulting files. Things like grep can be useful with this stuff! # $IDXFILE_FIELD_SEP = "\1"; sub write_idxfile{ my ($ahref, $str) = @_; print IDXFILE $ahref, $IDXFILE_FIELD_SEP, $str, "\n"; } sub gen_link{ my($node,$target) = @_; print INTLABELS "\$internal_labels{\"$target\"} = \"$URL/$node\";\n"; return ""; } sub add_index_entry{ # add an entry to the index structures; ignore the return value my($str,$ahref) = @_; $str = gen_index_id($str, ''); $index{$str} .= $ahref; write_idxfile($ahref, $str); } sub new_link_info{ my $name = "l2h-" . ++$globals{'max_id'}; my $aname = ""; my $ahref = gen_link($CURRENT_FILE, $name); return ($name, $aname, $ahref); } $IndexMacroPattern = ''; sub define_indexing_macro{ my $count = @_; my $i = 0; for (; $i < $count; ++$i) { my $name = @_[$i]; my $cmd = "idx_cmd_$name"; die "\nNo function $cmd() defined!\n" if (!defined &$cmd); eval ("sub do_cmd_$name { return process_index_macros(" . "\@_[0], '$name'); }"); if (length($IndexMacroPattern) == 0) { $IndexMacroPattern = "$name"; } else { $IndexMacroPattern .= "|$name"; } } } $DEBUG_INDEXING = 0; sub process_index_macros{ local($_) = @_; my $cmdname = @_[1]; # This is what triggered us in the first place; # we know it's real, so just process it. my($name,$aname,$ahref) = new_link_info(); my $cmd = "idx_cmd_$cmdname"; print "\nIndexing: \\$cmdname" if $DEBUG_INDEXING; &$cmd($ahref); # modifies $_ and adds index entries while (/^[\s\n]*\\($IndexMacroPattern)" . $_; } define_indexing_macro('index'); sub idx_cmd_index{ my $str = next_argument(); add_index_entry("$str", @_[0]); } define_indexing_macro('kwindex'); sub idx_cmd_kwindex{ my $str = next_argument(); add_index_entry("$str!keyword", @_[0]); add_index_entry("keyword!$str", @_[0]); } define_indexing_macro('indexii'); sub idx_cmd_indexii{ my $str1 = next_argument(); my $str2 = next_argument(); add_index_entry("$str1!$str2", @_[0]); add_index_entry("$str2!$str1", @_[0]); } define_indexing_macro('indexiii'); sub idx_cmd_indexiii{ my $str1 = next_argument(); my $str2 = next_argument(); my $str3 = next_argument(); add_index_entry("$str1!$str2 $str3", @_[0]); add_index_entry("$str2!$str3, $str1", @_[0]); add_index_entry("$str3!$str1 $str2", @_[0]); } define_indexing_macro('indexiv'); sub idx_cmd_indexiv{ my $str1 = next_argument(); my $str2 = next_argument(); my $str3 = next_argument(); my $str4 = next_argument(); add_index_entry("$str1!$str2 $str3 $str4", @_[0]); add_index_entry("$str2!$str3 $str4, $str1", @_[0]); add_index_entry("$str3!$str4, $str1 $str2", @_[0]); add_index_entry("$str4!$$str1 $str2 $str3", @_[0]); } define_indexing_macro('ttindex'); sub idx_cmd_ttindex{ my $str = next_argument(); my $entry = $str . get_indexsubitem(); add_index_entry($entry, @_[0]); } sub my_typed_index_helper{ my($word,$ahref) = @_; my $str = next_argument(); add_index_entry("$str $word", $ahref); add_index_entry("$word!$str", $ahref); } define_indexing_macro('stindex', 'opindex', 'exindex', 'obindex'); sub idx_cmd_stindex{ my_typed_index_helper('statement', @_[0]); } sub idx_cmd_opindex{ my_typed_index_helper('operator', @_[0]); } sub idx_cmd_exindex{ my_typed_index_helper('exception', @_[0]); } sub idx_cmd_obindex{ my_typed_index_helper('object', @_[0]); } define_indexing_macro('bifuncindex'); sub idx_cmd_bifuncindex{ my $str = next_argument(); add_index_entry("$str() (built-in function)", @_[0]); } sub make_mod_index_entry{ my($str,$define) = @_; my($name,$aname,$ahref) = new_link_info(); # equivalent of add_index_entry() using $define instead of '' $ahref =~ s/\#[-_a-zA-Z0-9]*\"/\"/ if ($define eq 'DEF'); $str = gen_index_id($str, $define); $index{$str} .= $ahref; write_idxfile($ahref, $str); if ($define eq 'DEF') { # add to the module index $str =~ /()/; my $nstr = $1; $Modules{$nstr} .= $ahref; } return "$aname$anchor_invisible_mark2"; } $THIS_MODULE = ''; $THIS_CLASS = ''; sub define_module{ my($word,$name) = @_; my $section_tag = join('', @curr_sec_id); if ($word ne "built-in" && $word ne "extension" && $word ne "standard" && $word ne "") { write_warnings("Bad module type '$word'" . " for \\declaremodule (module $name)"); $word = ""; } $word = "$word " if $word; $THIS_MODULE = "$name"; $INDEX_SUBITEM = "(in module $name)"; print "[$name]"; return make_mod_index_entry( "$name (${word}module)", 'DEF'); } sub my_module_index_helper{ local($word, $_) = @_; my $name = next_argument(); return define_module($word, $name) . $_; } sub do_cmd_modindex{ return my_module_index_helper('', @_); } sub do_cmd_bimodindex{ return my_module_index_helper('built-in', @_); } sub do_cmd_exmodindex{ return my_module_index_helper('extension', @_); } sub do_cmd_stmodindex{ return my_module_index_helper('standard', @_); } sub ref_module_index_helper{ my($word, $ahref) = @_; my $str = next_argument(); $word = "$word " if $word; $str = "$str (${word}module)"; # can't use add_index_entry() since the 2nd arg to gen_index_id() is used; # just inline it all here $str = gen_index_id($str, 'REF'); $index{$str} .= $ahref; write_idxfile($ahref, $str); } # these should be adjusted a bit.... define_indexing_macro('refmodindex', 'refbimodindex', 'refexmodindex', 'refstmodindex'); sub idx_cmd_refmodindex{ return ref_module_index_helper('', @_); } sub idx_cmd_refbimodindex{ return ref_module_index_helper('built-in', @_); } sub idx_cmd_refexmodindex{ return ref_module_index_helper('extension', @_); } sub idx_cmd_refstmodindex{ return ref_module_index_helper('standard', @_); } sub do_cmd_nodename{ return do_cmd_label(@_); } sub init_myformat{ $anchor_invisible_mark = ' '; $anchor_invisible_mark2 = ''; $anchor_mark = ''; $icons{'anchor_mark'} = ''; } init_myformat(); # Create an index entry, but include the string in the target anchor # instead of the dummy filler. # sub make_str_index_entry{ my($str) = @_; my($name,$aname,$ahref) = new_link_info(); add_index_entry($str, $ahref); return "$aname$str"; } %TokenToTargetMapping = (); %DefinedGrammars = (); %BackpatchGrammarFiles = (); sub do_cmd_token{ local($_) = @_; my $token = next_argument(); my $target = $TokenToTargetMapping{"$CURRENT_GRAMMAR:$token"}; if ($token eq $CURRENT_TOKEN || $CURRENT_GRAMMAR eq '*') { # recursive definition or display-only productionlist return "$token"; } if ($target eq '') { $target = "<$CURRENT_GRAMMAR><$token>"; if (! $BackpatchGrammarFiles{"$CURRENT_FILE"}) { print "Adding '$CURRENT_FILE' to back-patch list.\n"; } $BackpatchGrammarFiles{"$CURRENT_FILE"} = 1; } return "$token" . $_; } sub do_env_productionlist{ local($_) = @_; my $lang = next_optional_argument(); my $filename = "grammar-$lang.txt"; if ($lang eq '') { $filename = 'grammar.txt'; } local($CURRENT_GRAMMAR) = $lang; $DefinedGrammars{$lang} .= $_; return ("
\n" . "
\n" . "\n" . translate_commands(translate_environments($_)) . "
\n" . "
\n" . (($lang eq '*') ? '' : ("Download entire grammar as text.\n")) . "
"); } sub do_cmd_production{ local($_) = @_; my $token = next_argument(); my $defn = next_argument(); my $lang = $CURRENT_GRAMMAR; local($CURRENT_TOKEN) = $token; if ($lang eq '*') { return ("\n" . " $token\n" . "  ::= \n" . " " . translate_commands($defn) . "" . $_); } my $target; if ($lang eq '') { $target = "$CURRENT_FILE\#tok-$token"; } else { $target = "$CURRENT_FILE\#tok-$lang-$token"; } $TokenToTargetMapping{"$CURRENT_GRAMMAR:$token"} = $target; return ("\n" . " $token\n" . "  ::= \n" . " " . translate_commands($defn) . "" . $_); } sub process_grammar_files{ my $lang; my $filename; local($_); print "process_grammar_files()\n"; foreach $lang (keys %DefinedGrammars) { $filename = "grammar-$lang.txt"; if ($lang eq '*') { next; } if ($lang eq '') { $filename = 'grammar.txt'; } open(GRAMMAR, ">$filename") || die "\n$!\n"; print GRAMMAR strip_grammar_markup($DefinedGrammars{$lang}); close(GRAMMAR); print "Wrote grammar file $filename\n"; } my $PATTERN = '<([^>]*)><([^>]*)>'; foreach $filename (keys %BackpatchGrammarFiles) { print "\nBack-patching grammar links in $filename\n"; my $buffer; open(GRAMMAR, "<$filename") || die "\n$!\n"; # read all of the file into the buffer sysread(GRAMMAR, $buffer, 1024*1024); close(GRAMMAR); while ($buffer =~ /$PATTERN/) { my($lang, $token) = ($1, $2); my $target = $TokenToTargetMapping{"$lang:$token"}; my $source = "<$lang><$token>"; $buffer =~ s/$source/$target/g; } open(GRAMMAR, ">$filename") || die "\n$!\n"; print GRAMMAR $buffer; close(GRAMMAR); } } sub strip_grammar_markup{ local($_) = @_; s/\\production(<<\d+>>)(.+)\1/\n\2 ::= /g; s/\\token(<<\d+>>)(.+)\1/\2/g; s/\\e([^a-zA-Z])/\\\1/g; s/<<\d+>>//g; s/;SPMgt;/>/g; s/;SPMlt;/) { if (/([a-zA-Z0-9_]+):PyObject\*:([a-zA-Z0-9_]*):(0|[-+]1|null):(.*)$/) { my($func, $param, $count, $comment) = ($1, $2, $3, $4); #print "\n$func($param) --> $count"; $REFCOUNTS{"$func:$param"} = $count; } } } sub get_refcount{ my ($func, $param) = @_; load_refcounts() unless $REFCOUNTS_LOADED; return $REFCOUNTS{"$func:$param"}; } sub do_env_cfuncdesc{ local($_) = @_; my $return_type = next_argument(); my $function_name = next_argument(); my $arg_list = next_argument(); my $idx = make_str_index_entry( "$function_name()" . get_indexsubitem()); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)//; # ???? - why both of these? my $result_rc = get_refcount($function_name, ''); my $rcinfo = ''; if ($result_rc eq '+1') { $rcinfo = 'New reference'; } elsif ($result_rc eq '0') { $rcinfo = 'Borrowed reference'; } elsif ($result_rc eq 'null') { $rcinfo = 'Always NULL'; } if ($rcinfo ne '') { $rcinfo = ( "\n
" . "\n Return value:" . "\n $rcinfo." . "\n
"); } return "
$return_type $idx($arg_list)\n
" . $rcinfo . $_ . '
'; } sub do_env_csimplemacrodesc{ local($_) = @_; my $name = next_argument(); my $idx = make_str_index_entry("$name"); return "
$idx\n
" . $_ . '
' } sub do_env_ctypedesc{ local($_) = @_; my $index_name = next_optional_argument(); my $type_name = next_argument(); $index_name = $type_name unless $index_name; my($name,$aname,$ahref) = new_link_info(); add_index_entry("$index_name (C type)", $ahref); return "
$aname$type_name\n
" . $_ . '
' } sub do_env_cvardesc{ local($_) = @_; my $var_type = next_argument(); my $var_name = next_argument(); my $idx = make_str_index_entry("$var_name" . get_indexsubitem()); $idx =~ s/ \(.*\)//; return "
$var_type $idx\n" . '
' . $_ . '
'; } sub convert_args($){ local($IN_DESC_HANDLER) = 1; local($_) = @_; return translate_commands($_); } sub do_env_funcdesc{ local($_) = @_; my $function_name = next_argument(); my $arg_list = convert_args(next_argument()); my $idx = make_str_index_entry("$function_name()" . '' . get_indexsubitem()); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)<\/tt>/<\/tt>/; return "
$idx($arg_list)\n
" . $_ . '
'; } sub do_env_funcdescni{ local($_) = @_; my $function_name = next_argument(); my $arg_list = convert_args(next_argument()); return "
$function_name" . "($arg_list)\n" . '
' . $_ . '
'; } sub do_cmd_funcline{ local($_) = @_; my $function_name = next_argument(); my $arg_list = convert_args(next_argument()); my $prefix = "$function_name()"; my $idx = make_str_index_entry($prefix . get_indexsubitem()); $prefix =~ s/\(\)//; return "
$prefix($arg_list)\n
" . $_; } sub do_cmd_funclineni{ local($_) = @_; my $function_name = next_argument(); my $arg_list = convert_args(next_argument()); my $prefix = "$function_name"; return "
$prefix($arg_list)\n
" . $_; } # Change this flag to index the opcode entries. I don't think it's very # useful to index them, since they're only presented to describe the dis # module. # $INDEX_OPCODES = 0; sub do_env_opcodedesc{ local($_) = @_; my $opcode_name = next_argument(); my $arg_list = next_argument(); my $idx; if ($INDEX_OPCODES) { $idx = make_str_index_entry("$opcode_name" . ' (byte code instruction)'); $idx =~ s/ \(byte code instruction\)//; } else { $idx = "$opcode_name"; } my $stuff = "
$idx"; if ($arg_list) { $stuff .= "    $arg_list"; } return $stuff . "\n
" . $_ . '
'; } sub do_env_datadesc{ local($_) = @_; my $dataname = next_argument(); my $idx = make_str_index_entry("$dataname" . get_indexsubitem()); $idx =~ s/ \(.*\)//; return "
$idx\n
" . $_ . '
'; } sub do_env_datadescni{ local($_) = @_; my $idx = next_argument(); if (! $STRING_INDEX_TT) { $idx = "$idx"; } return "
$idx\n
" . $_ . '
'; } sub do_cmd_dataline{ local($_) = @_; my $data_name = next_argument(); my $idx = make_str_index_entry("$data_name" . get_indexsubitem()); $idx =~ s/ \(.*\)//; return "
$idx
" . $_; } sub do_cmd_datalineni{ local($_) = @_; my $data_name = next_argument(); return "
$data_name
" . $_; } sub do_env_excdesc{ local($_) = @_; my $excname = next_argument(); my $idx = make_str_index_entry("$excname"); return "
exception $idx\n
" . $_ . '
' } sub do_env_fulllineitems{ return do_env_itemize(@_); } sub handle_classlike_descriptor{ local($_, $what) = @_; $THIS_CLASS = next_argument(); my $arg_list = convert_args(next_argument()); $idx = make_str_index_entry( "$THIS_CLASS ($what in $THIS_MODULE)" ); $idx =~ s/ \(.*\)//; return ("
$what $idx($arg_list)\n
" . $_ . '
'); } sub do_env_classdesc{ return handle_classlike_descriptor(@_[0], "class"); } sub do_env_classdescstar{ local($_) = @_; $THIS_CLASS = next_argument(); $idx = make_str_index_entry( "$THIS_CLASS (class in $THIS_MODULE)"); $idx =~ s/ \(.*\)//; return ("
class $idx\n
" . $_ . '
'); } sub do_env_excclassdesc{ return handle_classlike_descriptor(@_[0], "exception"); } sub do_env_methoddesc{ local($_) = @_; my $class_name = next_optional_argument(); $class_name = $THIS_CLASS unless $class_name; my $method = next_argument(); my $arg_list = convert_args(next_argument()); my $extra = ''; if ($class_name) { $extra = " ($class_name method)"; } my $idx = make_str_index_entry( "$method()$extra"); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)//; return "
$idx($arg_list)\n
" . $_ . '
'; } sub do_cmd_methodline{ local($_) = @_; my $class_name = next_optional_argument(); $class_name = $THIS_CLASS unless $class_name; my $method = next_argument(); my $arg_list = convert_args(next_argument()); my $extra = ''; if ($class_name) { $extra = " ($class_name method)"; } my $idx = make_str_index_entry( "$method()$extra"); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)//; return "
$idx($arg_list)\n
" . $_; } sub do_cmd_methodlineni{ local($_) = @_; next_optional_argument(); my $method = next_argument(); my $arg_list = convert_args(next_argument()); return "
$method($arg_list)\n
" . $_; } sub do_env_methoddescni{ local($_) = @_; next_optional_argument(); my $method = next_argument(); my $arg_list = convert_args(next_argument()); return "
$method($arg_list)\n
" . $_ . '
'; } sub do_env_memberdesc{ local($_) = @_; my $class = next_optional_argument(); my $member = next_argument(); $class = $THIS_CLASS unless $class; my $extra = ''; $extra = " ($class attribute)" if ($class ne ''); my $idx = make_str_index_entry("$member$extra"); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)//; return "
$idx\n
" . $_ . '
'; } sub do_cmd_memberline{ local($_) = @_; my $class = next_optional_argument(); my $member = next_argument(); $class = $THIS_CLASS unless $class; my $extra = ''; $extra = " ($class attribute)" if ($class ne ''); my $idx = make_str_index_entry("$member$extra"); $idx =~ s/ \(.*\)//; $idx =~ s/\(\)//; return "
$idx
" . $_; } sub do_env_memberdescni{ local($_) = @_; next_optional_argument(); my $member = next_argument(); return "
$member\n
" . $_ . '
'; } sub do_cmd_memberlineni{ local($_) = @_; next_optional_argument(); my $member = next_argument(); return "
$member
" . $_; } @col_aligns = ('', '', '', '', ''); %FontConversions = ('cdata' => 'tt class="cdata"', 'character' => 'tt class="character"', 'class' => 'tt class="class"', 'command' => 'code', 'constant' => 'tt class="constant"', 'exception' => 'tt class="exception"', 'file' => 'tt class="file"', 'filenq' => 'tt class="file"', 'kbd' => 'kbd', 'member' => 'tt class="member"', 'programopt' => 'b', 'textrm' => '', ); sub fix_font{ # do a little magic on a font name to get the right behavior in the first # column of the output table my $font = @_[0]; if (defined $FontConversions{$font}) { $font = $FontConversions{$font}; } return $font; } sub figure_column_alignment{ my $a = @_[0]; my $mark = substr($a, 0, 1); my $r = ''; if ($mark eq 'c') { $r = ' align="center"'; } elsif ($mark eq 'r') { $r = ' align="right"'; } elsif ($mark eq 'l') { $r = ' align="left"'; } elsif ($mark eq 'p') { $r = ' align="left"'; } return $r; } sub setup_column_alignments{ local($_) = @_; my($s1,$s2,$s3,$s4,$a5) = split(/[|]/,$_); my $a1 = figure_column_alignment($s1); my $a2 = figure_column_alignment($s2); my $a3 = figure_column_alignment($s3); my $a4 = figure_column_alignment($s4); my $a5 = figure_column_alignment($s5); $col_aligns[0] = ""; $col_aligns[1] = ""; $col_aligns[2] = ""; $col_aligns[3] = ""; $col_aligns[4] = ""; # return the aligned header start tags return ("", "", "", "", ""); } sub get_table_col1_fonts{ my $font = $globals{'lineifont'}; my ($sfont,$efont) = ('', ''); if ($font) { $sfont = "<$font>"; $efont = ""; $efont =~ s/ .*>/>/; } return ($sfont, $efont); } sub do_env_tableii{ local($_) = @_; my($th1,$th2,$th3,$th4,$th5) = setup_column_alignments(next_argument()); my $font = fix_font(next_argument()); my $h1 = next_argument(); my $h2 = next_argument(); s/[\s\n]+//; $globals{'lineifont'} = $font; my $a1 = $col_aligns[0]; my $a2 = $col_aligns[1]; s/\\lineii' . "\n " . "\n " . "\n $th1$h1\ " . "\n $th2$h2\ " . "\n " . "\n " . "\n " . $_ . "\n " . "\n"; } sub do_env_longtableii{ return do_env_tableii(@_); } sub do_cmd_lineii{ local($_) = @_; my $aligns = next_optional_argument(); my $c1 = next_argument(); my $c2 = next_argument(); s/[\s\n]+//; my($sfont,$efont) = get_table_col1_fonts(); $c2 = ' ' if ($c2 eq ''); my($c1align,$c2align) = split('\|', $aligns); my $padding = ''; if ($c1align =~ /align="right"/ || $c1 eq '') { $padding = ' '; } return "\n $c1align$sfont$c1$efont$padding\n" . " $c2align$c2" . $_; } sub do_env_tableiii{ local($_) = @_; my($th1,$th2,$th3,$th4,$th5) = setup_column_alignments(next_argument()); my $font = fix_font(next_argument()); my $h1 = next_argument(); my $h2 = next_argument(); my $h3 = next_argument(); s/[\s\n]+//; $globals{'lineifont'} = $font; my $a1 = $col_aligns[0]; my $a2 = $col_aligns[1]; my $a3 = $col_aligns[2]; s/\\lineiii' . "\n " . "\n " . "\n $th1$h1\ " . "\n $th2$h2\ " . "\n $th3$h3\ " . "\n " . "\n " . "\n " . $_ . "\n " . "\n"; } sub do_env_longtableiii{ return do_env_tableiii(@_); } sub do_cmd_lineiii{ local($_) = @_; my $aligns = next_optional_argument(); my $c1 = next_argument(); my $c2 = next_argument(); my $c3 = next_argument(); s/[\s\n]+//; my($sfont,$efont) = get_table_col1_fonts(); $c3 = ' ' if ($c3 eq ''); my($c1align,$c2align,$c3align) = split('\|', $aligns); my $padding = ''; if ($c1align =~ /align="right"/ || $c1 eq '') { $padding = ' '; } return "\n $c1align$sfont$c1$efont$padding\n" . " $c2align$c2\n" . " $c3align$c3" . $_; } sub do_env_tableiv{ local($_) = @_; my($th1,$th2,$th3,$th4,$th5) = setup_column_alignments(next_argument()); my $font = fix_font(next_argument()); my $h1 = next_argument(); my $h2 = next_argument(); my $h3 = next_argument(); my $h4 = next_argument(); s/[\s\n]+//; $globals{'lineifont'} = $font; my $a1 = $col_aligns[0]; my $a2 = $col_aligns[1]; my $a3 = $col_aligns[2]; my $a4 = $col_aligns[3]; s/\\lineiv' . "\n " . "\n " . "\n $th1$h1\ " . "\n $th2$h2\ " . "\n $th3$h3\ " . "\n $th4$h4\ " . "\n " . "\n " . "\n " . $_ . "\n " . "\n"; } sub do_env_longtableiv{ return do_env_tableiv(@_); } sub do_cmd_lineiv{ local($_) = @_; my $aligns = next_optional_argument(); my $c1 = next_argument(); my $c2 = next_argument(); my $c3 = next_argument(); my $c4 = next_argument(); s/[\s\n]+//; my($sfont,$efont) = get_table_col1_fonts(); $c4 = ' ' if ($c4 eq ''); my($c1align,$c2align,$c3align,$c4align) = split('\|', $aligns); my $padding = ''; if ($c1align =~ /align="right"/ || $c1 eq '') { $padding = ' '; } return "\n $c1align$sfont$c1$efont$padding\n" . " $c2align$c2\n" . " $c3align$c3\n" . " $c4align$c4" . $_; } sub do_env_tablev{ local($_) = @_; my($th1,$th2,$th3,$th4,$th5) = setup_column_alignments(next_argument()); my $font = fix_font(next_argument()); my $h1 = next_argument(); my $h2 = next_argument(); my $h3 = next_argument(); my $h4 = next_argument(); my $h5 = next_argument(); s/[\s\n]+//; $globals{'lineifont'} = $font; my $a1 = $col_aligns[0]; my $a2 = $col_aligns[1]; my $a3 = $col_aligns[2]; my $a4 = $col_aligns[3]; my $a5 = $col_aligns[4]; s/\\linev' . "\n " . "\n " . "\n $th1$h1\ " . "\n $th2$h2\ " . "\n $th3$h3\ " . "\n $th4$h4\ " . "\n $th5$h5\ " . "\n " . "\n " . "\n " . $_ . "\n " . "\n"; } sub do_env_longtablev{ return do_env_tablev(@_); } sub do_cmd_linev{ local($_) = @_; my $aligns = next_optional_argument(); my $c1 = next_argument(); my $c2 = next_argument(); my $c3 = next_argument(); my $c4 = next_argument(); my $c5 = next_argument(); s/[\s\n]+//; my($sfont,$efont) = get_table_col1_fonts(); $c5 = ' ' if ($c5 eq ''); my($c1align,$c2align,$c3align,$c4align,$c5align) = split('\|', $aligns); my $padding = ''; if ($c1align =~ /align="right"/ || $c1 eq '') { $padding = ' '; } return "\n $c1align$sfont$c1$efont$padding\n" . " $c2align$c2\n" . " $c3align$c3\n" . " $c4align$c4\n" . " $c5align$c5" . $_; } # These can be used to control the title page appearance; # they need a little bit of documentation. # # If $TITLE_PAGE_GRAPHIC is set, it should be the name of a file in the # $ICONSERVER directory, or include path information (other than "./"). The # default image type will be assumed if an extension is not provided. # # If specified, the "title page" will contain two colums: one containing the # title/author/etc., and the other containing the graphic. Use the other # four variables listed here to control specific details of the layout; all # are optional. # # $TITLE_PAGE_GRAPHIC = "my-company-logo"; # $TITLE_PAGE_GRAPHIC_COLWIDTH = "30%"; # $TITLE_PAGE_GRAPHIC_WIDTH = 150; # $TITLE_PAGE_GRAPHIC_HEIGHT = 150; # $TITLE_PAGE_GRAPHIC_ON_RIGHT = 0; sub make_my_titlepage() { my $the_title = ""; if ($t_title) { $the_title .= "\n

$t_title

"; } else { write_warnings("\nThis document has no title."); } if ($t_author) { if ($t_authorURL) { my $href = translate_commands($t_authorURL); $href = make_named_href('author', $href, "$t_author" . ''); $the_title .= "\n

$href

"; } else { $the_title .= ("\n

$t_author" . '

'); } } else { write_warnings("\nThere is no author for this document."); } if ($t_institute) { $the_title .= "\n

$t_institute

"; } if ($DEVELOPER_ADDRESS) { $the_title .= "\n

$DEVELOPER_ADDRESS

"; } if ($t_affil) { $the_title .= "\n

$t_affil

"; } if ($t_date) { $the_title .= "\n

"; if ($PACKAGE_VERSION) { $the_title .= ('Release ' . "$PACKAGE_VERSION$RELEASE_INFO
\n"); } $the_title .= "$t_date

" } if ($t_address) { $the_title .= "\n

$t_address

"; } else { $the_title .= "\n

"; } if ($t_email) { $the_title .= "\n

$t_email

"; } return $the_title; } sub make_my_titlegraphic() { my $filename = make_icon_filename($TITLE_PAGE_GRAPHIC); my $graphic = "\n"; return $graphic; } sub do_cmd_maketitle { local($_) = @_; my $the_title = "\n
"; if ($TITLE_PAGE_GRAPHIC) { if ($TITLE_PAGE_GRAPHIC_ON_RIGHT) { $the_title .= ("\n" . "\n\n" . make_my_titlegraphic() . "\n
" . make_my_titlepage() . "
"); } else { $the_title .= ("\n\n" . make_my_titlegraphic() . "\n
" . make_my_titlepage() . "
"); } } else { $the_title .= ("\n
" . make_my_titlepage() . "\n
"); } $the_title .= "\n
"; return $the_title . $_; $the_title .= "\n"; return $the_title . $_ ; } # # Module synopsis support # require SynopsisTable; sub get_chapter_id(){ my $id = do_cmd_thechapter(''); $id =~ s/(\d+)<\/SPAN>/\1/; $id =~ s/\.//; return $id; } # 'chapter' => 'SynopsisTable instance' %ModuleSynopses = (); sub get_synopsis_table($){ my($chap) = @_; my $key; foreach $key (keys %ModuleSynopses) { if ($key eq $chap) { return $ModuleSynopses{$chap}; } } my $st = SynopsisTable->new(); $ModuleSynopses{$chap} = $st; return $st; } sub do_cmd_moduleauthor{ local($_) = @_; next_argument(); next_argument(); return $_; } sub do_cmd_sectionauthor{ local($_) = @_; next_argument(); next_argument(); return $_; } sub do_cmd_declaremodule{ local($_) = @_; my $key = next_optional_argument(); my $type = next_argument(); my $name = next_argument(); my $st = get_synopsis_table(get_chapter_id()); # $key = $name unless $key; $type = 'built-in' if $type eq 'builtin'; $st->declare($name, $key, $type); define_module($type, $name); return anchor_label("module-$key",$CURRENT_FILE,$_) } sub do_cmd_modulesynopsis{ local($_) = @_; my $st = get_synopsis_table(get_chapter_id()); $st->set_synopsis($THIS_MODULE, translate_commands(next_argument())); return $_; } sub do_cmd_localmoduletable{ local($_) = @_; my $chap = get_chapter_id(); my $st = get_synopsis_table($chap); $st->set_file("$CURRENT_FILE"); return "<$chap>\\tableofchildlinks[off]" . $_; } sub process_all_localmoduletables{ my $key; my $st, $file; foreach $key (keys %ModuleSynopses) { $st = $ModuleSynopses{$key}; $file = $st->get_file(); if ($file) { process_localmoduletables_in_file($file); } else { print "\nsynopsis table $key has no file association\n"; } } } sub process_localmoduletables_in_file{ my $file = @_[0]; open(MYFILE, "<$file"); local($_); sysread(MYFILE, $_, 1024*1024); close(MYFILE); # need to get contents of file in $_ while (/<(\d+)>/) { my $match = $&; my $chap = $1; my $st = get_synopsis_table($chap); my $data = $st->tohtml(); s/$match/$data/; } open(MYFILE,">$file"); print MYFILE $_; close(MYFILE); } sub process_python_state{ process_all_localmoduletables(); process_grammar_files(); } # # "See also:" -- references placed at the end of a \section # sub do_env_seealso{ return ("
\n " . "

See Also:

\n" . @_[0] . '
'); } sub do_cmd_seemodule{ # Insert the right magic to jump to the module definition. This should # work most of the time, at least for repeat builds.... local($_) = @_; my $key = next_optional_argument(); my $module = next_argument(); my $text = next_argument(); my $period = '.'; $key = $module unless $key; if ($text =~ /\.$/) { $period = ''; } return ('
' . "\n
Module " . "$module:" . "\n
$text$period\n
" . $_); } sub strip_html_markup($){ my $str = @_[0]; my $s = "$str"; $s =~ s/<[a-zA-Z0-9]+(\s+[a-zA-Z0-9]+(\s*=\s*(\'[^\']*\'|\"[^\"]*\"|[a-zA-Z0-9]+))?)*\s*>//g; $s =~ s/<\/[a-zA-Z0-9]+>//g; return $s; } sub handle_rfclike_reference{ local($_, $what, $format) = @_; my $rfcnum = next_argument(); my $title = next_argument(); my $text = next_argument(); my $url = get_rfc_url($rfcnum, $format); my $icon = get_link_icon($url); my $attrtitle = strip_html_markup($title); return '
' . "\n
$what $rfcnum, $title$icon" . "\n
$text\n
" . $_; } sub do_cmd_seepep{ return handle_rfclike_reference(@_[0], "PEP", $PEP_FORMAT); } sub do_cmd_seerfc{ return handle_rfclike_reference(@_[0], "RFC", $RFC_FORMAT); } sub do_cmd_seetitle{ local($_) = @_; my $url = next_optional_argument(); my $title = next_argument(); my $text = next_argument(); if ($url) { my $icon = get_link_icon($url); return '
' . "\n
$title$icon" . "\n
$text\n
" . $_; } return '
' . "\n
$title" . "\n
$text\n
" . $_; } sub do_cmd_seeurl{ local($_) = @_; my $url = next_argument(); my $text = next_argument(); my $icon = get_link_icon($url); return '
' . "\n
$url$icon" . "\n
$text\n
" . $_; } sub do_cmd_seetext{ local($_) = @_; my $content = next_argument(); return '

' . $content . '

' . $_; } # # Definition list support. # sub do_env_definitions{ return "
" . @_[0] . "
\n"; } sub do_cmd_term{ local($_) = @_; my $term = next_argument(); my($name,$aname,$ahref) = new_link_info(); # could easily add an index entry here... return "
$aname" . $term . "\n
" . $_; } # I don't recall exactly why this was needed, but it was very much needed. # We'll see if anything breaks when I move the "code" line out -- some # things broke with it in. #code # {} process_commands_wrap_deferred(<<_RAW_ARG_DEFERRED_CMDS_); declaremodule # [] # {} # {} memberline # [] # {} methodline # [] # {} # {} modulesynopsis # {} platform # {} samp # {} setindexsubitem # {} withsubitem # {} # {} _RAW_ARG_DEFERRED_CMDS_ $alltt_start = '
';
$alltt_end = '
'; sub do_env_alltt { local ($_) = @_; local($closures,$reopens,@open_block_tags); # get the tag-strings for all open tags local(@keep_open_tags) = @$open_tags_R; ($closures,$reopens) = &preserve_open_tags() if (@$open_tags_R); # get the tags for text-level tags only $open_tags_R = [ @keep_open_tags ]; local($local_closures, $local_reopens); ($local_closures, $local_reopens,@open_block_tags) = &preserve_open_block_tags if (@$open_tags_R); $open_tags_R = [ @open_block_tags ]; do { local($open_tags_R) = [ @open_block_tags ]; local(@save_open_tags) = (); local($cnt) = ++$global{'max_id'}; $_ = join('',"$O$cnt$C\\tt$O", ++$global{'max_id'}, $C , $_ , $O, $global{'max_id'}, "$C$O$cnt$C"); $_ = &translate_environments($_); $_ = &translate_commands($_) if (/\\/); # preserve space-runs, using   while (s/(\S) ( +)/$1$2;SPMnbsp;/g){}; s/(
) /$1;SPMnbsp;/g; $_ = join('', $closures, $alltt_start, $local_reopens , $_ , &balance_tags() #, $local_closures , $alltt_end, $reopens); undef $open_tags_R; undef @save_open_tags; }; $open_tags_R = [ @keep_open_tags ]; $_; } sub do_cmd_verbatiminput{ local($_) = @_; my $fname = next_argument(); my $file; my $found = 0; my $texpath; # Search TEXINPUTS for the input file, the way we're supposed to: foreach $texpath (split /$envkey/, $TEXINPUTS) { $file = "$texpath$dd$fname"; last if ($found = (-f $file)); } my $srcname; my $text; if ($found) { open(MYFILE, "<$file") || die "\n$!\n"; read(MYFILE, $text, 1024*1024); close(MYFILE); use File::Basename; my $srcdir, $srcext; ($srcname, $srcdir, $srcext) = fileparse($file, '\..*'); open(MYFILE, ">$srcname.txt"); print MYFILE $text; close(MYFILE); # # These rewrites convert the raw text to something that will # be properly visible as HTML and also will pass through the # vagaries of conversion through LaTeX2HTML. The order in # which the specific rewrites are performed is significant. # $text =~ s/\&/\&/g; # These need to happen before the normal < and > re-writes, # since we need to avoid LaTeX2HTML's attempt to perform # ligature processing without regard to context (since it # doesn't have font information). $text =~ s/--/-&\#45;/g; $text =~ s/<>/\>\&\#62;/g; # Just normal re-writes... $text =~ s//\>/g; # These last isn't needed for the HTML, but is needed to get # past LaTeX2HTML processing TeX macros. We use \ instead # of / since many browsers don't support that. $text =~ s/\\/\&\#92;/g; } else { $text = 'Could not locate requested file $fname!\n'; } return ('
'
            . $text
            . "
\n
\n" . "Download as text." . "\n
\n
" . $_); } 1; # This must be the last line