diff -r 000000000000 -r 7f656887cf89 libraries/spcre/libpcre/pcre/132html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libraries/spcre/libpcre/pcre/132html Wed Jun 23 15:52:26 2010 +0100 @@ -0,0 +1,296 @@ +#! /usr/bin/perl -w + +# Script to turn PCRE man pages into HTML + + +# Subroutine to handle font changes and other escapes + +sub do_line { +my($s) = $_[0]; + +$s =~ s/ +$s =~ s/>/>/g; +$s =~ s"\\fI(.*?)\\f[RP]"$1"g; +$s =~ s"\\fB(.*?)\\f[RP]"$1"g; +$s =~ s"\\e"\\"g; +$s =~ s/(?<=Copyright )$c$/©/g; +$s; +} + +# Subroutine to ensure not in a paragraph + +sub end_para { +if ($inpara) + { + print TEMP "\n" if ($inpre); + print TEMP "

\n"; + } +$inpara = $inpre = 0; +$wrotetext = 0; +} + +# Subroutine to start a new paragraph + +sub new_para { +&end_para(); +print TEMP "

\n"; +$inpara = 1; +} + + +# Main program + +$innf = 0; +$inpara = 0; +$inpre = 0; +$wrotetext = 0; +$toc = 0; +$ref = 1; + +while ($#ARGV >= 0 && $ARGV[0] =~ /^-/) + { + $toc = 1 if $ARGV[0] eq "-toc"; + shift; + } + +# Initial output to STDOUT + +print < + +$ARGV[0] specification + + +

$ARGV[0] man page

+Return to the PCRE index page. +

+This page is part of the PCRE HTML documentation. It was generated automatically +from the original man page. If there is any nonsense in it, please consult the +man page, in case the conversion went wrong. +
+End + +print "

) + { + # Handle lines beginning with a dot + + if (/^\./) + { + # Some of the PCRE man pages used to contain instances of .br. However, + # they should have all been removed because they cause trouble in some + # (other) automated systems that translate man pages to HTML. Complain if + # we find .br or .in (another macro that is deprecated). + + if (/^\.br/ || /^\.in/) + { + print STDERR "\n*** Deprecated macro encountered - rewrite needed\n"; + print STDERR "*** $_\n"; + die "*** Processing abandoned\n"; + } + + # Instead of .br, relevent "literal" sections are enclosed in .nf/.fi. + + elsif (/^\.nf/) + { + $innf = 1; + } + + elsif (/^\.fi/) + { + $innf = 0; + } + + # Handling .sp is subtle. If it is inside a literal section, do nothing if + # the next line is a non literal text line; similarly, if not inside a + # literal section, do nothing if a literal follows. The point being that + # the

and

that delimit literal sections will do the spacing. + # Always skip if no previous output. + + elsif (/^\.sp/) + { + if ($wrotetext) + { + $_ = ; + if ($inpre) + { + print TEMP "\n" if (/^[\s.]/); + } + else + { + print TEMP "
\n
\n" if (!/^[\s.]/); + } + redo; # Now process the lookahead line we just read + } + } + elsif (/^\.TP/ || /^\.PP/ || /^\.P/) + { + &new_para(); + } + elsif (/^\.SH\s*("?)(.*)\1/) + { + # Ignore the NAME section + if ($2 =~ /^NAME\b/) + { + ; + next; + } + + &end_para(); + my($title) = &do_line($2); + if ($toc) + { + printf("

$title\n", + $ref, $ref); + printf TEMP ("
$title
\n", + $ref, $ref); + $ref++; + } + else + { + print TEMP "
\n$title\n
\n"; + } + } + elsif (/^\.SS\s*("?)(.*)\1/) + { + &end_para(); + my($title) = &do_line($2); + print TEMP "
\n$title\n
\n"; + } + elsif (/^\.B\s*(.*)/) + { + &new_para() if (!$inpara); + $_ = &do_line($1); + s/"(.*?)"/$1/g; + print TEMP "$_\n"; + $wrotetext = 1; + } + elsif (/^\.I\s*(.*)/) + { + &new_para() if (!$inpara); + $_ = &do_line($1); + s/"(.*?)"/$1/g; + print TEMP "$_\n"; + $wrotetext = 1; + } + + # A comment that starts "HREF" takes the next line as a name that + # is turned into a hyperlink, using the text given, which might be + # in a special font. If it ends in () or (digits) or punctuation, they + # aren't part of the link. + + elsif (/^\.\\"\s*HREF/) + { + $_=; + chomp; + $_ = &do_line($_); + $_ =~ s/\s+$//; + $_ =~ /^(?:<.>)?([^<(]+)(?:)?(?:<\/.>)?(?:$\d+$)?[.,;:]?$/; + print TEMP "$_\n"; + } + + # A comment that starts "HTML" inserts literal HTML + + elsif (/^\.\\"\s*HTML\s*(.*)/) + { + print TEMP $1; + } + + # A comment that starts < inserts that HTML at the end of the + # *next* input line - so as not to get a newline between them. + + elsif (/^\.\\"\s*(<.*>)/) + { + my($markup) = $1; + $_=; + chomp; + $_ = &do_line($_); + $_ =~ s/\s+$//; + print TEMP "$_$markup\n"; + } + + # A comment that starts JOIN joins the next two lines together, with one + # space between them. Then that line is processed. This is used in some + # displays where two lines are needed for the "man" version. JOINSH works + # the same, except that it assumes this is a shell command, so removes + # continuation backslashes. + + elsif (/^\.\\"\s*JOIN(SH)?/) + { + my($one,$two); + $one = ; + $two = ; + $one =~ s/\s*\\e\s*$// if (defined($1)); + chomp($one); + $two =~ s/^\s+//; + $_ = "$one $two"; + redo; # Process the joined lines + } + + # Ignore anything not recognized + + next; + } + + # Line does not begin with a dot. Replace blank lines with new paragraphs + + if (/^\s*$/) + { + &end_para() if ($wrotetext); + next; + } + + # Convert fonts changes and output an ordinary line. Ensure that indented + # lines are marked as literal. + + $_ = &do_line($_); + &new_para() if (!$inpara); + + if (/^\s/) + { + if (!$inpre) + { + print TEMP "

\n";
+      $inpre = 1;
+      }
+    }
+  elsif ($inpre)
+    {
+    print TEMP "

\n"; + $inpre = 0; + } + + # Add
to the end of a non-literal line if we are within .nf/.fi + + $_ .= "
\n" if (!$inpre && $innf); + + print TEMP; + $wrotetext = 1; + } + +# The TOC, if present, will have been written - terminate it + +print "

\n" if ($toc); + +# Copy the remainder to the standard output + +close(TEMP); +open(TEMP, "/tmp/$$") || die "Can't open /tmp/$$ for input\n"; + +print while (); + +print < +Return to the PCRE index page. +

+End + +close(TEMP); +unlink("/tmp/$$"); + +# End