doc: remove hxtool-conv.pl
This script doesn't need anymore as all texi are already convert to rST Signed-off-by: Yonggang Luo <luoyonggang@gmail.com> Message-Id: <20201001162705.219-3-luoyonggang@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
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#!/usr/bin/perl -w
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#
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# Script to convert .hx file STEXI/ETEXI blocks to SRST/ERST
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#
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# Copyright (C) 2020 Linaro
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# (at your option) any later version. See the COPYING file in the
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# top-level directory.
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# This script was only ever intended as a one-off conversion operation.
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# Please excuse the places where it is a bit hacky.
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# Some manual intervention after the conversion is expected, as are
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# some warnings from makeinfo.
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# Warning: this script is not idempotent: don't try to run it on
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# a .hx file that already has SRST/ERST sections.
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# Expected usage:
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# scripts/hxtool-conv.pl file.hx > file.hx.new
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use utf8;
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my $reading_texi = 0;
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my $texiblock = '';
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my @tables = ();
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sub update_tables($) {
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my ($texi) = @_;
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# Update our list of open table directives: every @table
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# line in the texi fragment is added to the list, and every
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# @end table line means we remove an entry from the list.
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# If this fragment had a completely self contained table with
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# both the @table and @end table lines, this will be a no-op.
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foreach (split(/\n/, $texi)) {
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push @tables, $_ if /^\@table/;
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pop @tables if /^\@end table/;
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}
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}
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sub only_table_directives($) {
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# Return true if every line in the fragment is a start or end table directive
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my ($texi) = @_;
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foreach (split(/\n/, $texi)) {
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return 0 unless /^\@table/ or /^\@end table/;
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}
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return 1;
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}
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sub output_rstblock($) {
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# Write the output to /tmp/frag.texi, wrapped in whatever current @table
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# lines we need.
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my ($texi) = @_;
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# As a special case, if this fragment is only table directives and
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# nothing else, update our set of open table directives but otherwise
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# ignore it. This avoids emitting an empty SRST/ERST block.
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if (only_table_directives($texi)) {
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update_tables($texi);
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return;
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}
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open(my $fragfh, '>', '/tmp/frag.texi');
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# First output the currently active set of open table directives
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print $fragfh join("\n", @tables);
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# Next, update our list of open table directives.
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# We need to do this before we emit the closing table directives
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# so that we emit the right number if this fragment had an
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# unbalanced set of directives.
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update_tables($texi);
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# Then emit the texi fragment itself.
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print $fragfh "\n$texi\n";
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# Finally, add the necessary closing table directives.
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print $fragfh "\@end table\n" x scalar @tables;
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close $fragfh;
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# Now invoke makeinfo/pandoc on it and slurp the results into a string
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open(my $fh, '-|', "makeinfo --force -o - --docbook "
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. "-D 'qemu_system_x86 QEMU_SYSTEM_X86_MACRO' "
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. "-D 'qemu_system QEMU_SYSTEM_MACRO' /tmp/frag.texi "
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. " | pandoc -f docbook -t rst")
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or die "can't start makeinfo/pandoc: $!";
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binmode $fh, ':encoding(utf8)';
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print "SRST\n";
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# Slurp the whole thing into a string so we can do multiline
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# string matches on it.
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my $rst = do {
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local $/ = undef;
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<$fh>;
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};
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$rst =~ s/^- − /- /gm;
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$rst =~ s/“/"/gm;
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$rst =~ s/”/"/gm;
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$rst =~ s/‘/'/gm;
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$rst =~ s/’/'/gm;
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$rst =~ s/QEMU_SYSTEM_MACRO/|qemu_system|/g;
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$rst =~ s/QEMU_SYSTEM_X86_MACRO/|qemu_system_x86|/g;
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$rst =~ s/(?=::\n\n +\|qemu)/.. parsed-literal/g;
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$rst =~ s/:\n\n::$/::/gm;
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# Fix up the invalid reference format makeinfo/pandoc emit:
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# `Some string here <#anchorname>`__
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# should be:
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# :ref:`anchorname`
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$rst =~ s/\`[^<`]+\<\#([^>]+)\>\`__/:ref:`$1`/gm;
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print $rst;
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close $fh or die "error on close: $!";
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print "ERST\n";
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}
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# Read the whole .hx input file.
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while (<>) {
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# Always print the current line
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print;
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if (/STEXI/) {
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$reading_texi = 1;
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$texiblock = '';
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next;
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}
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if (/ETEXI/) {
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$reading_texi = 0;
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# dump RST version of block
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output_rstblock($texiblock);
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next;
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}
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if ($reading_texi) {
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# Accumulate the texi into a string
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# but drop findex entries as they will confuse makeinfo
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next if /^\@findex/;
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$texiblock .= $_;
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}
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}
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die "Unexpectedly still in texi block at EOF" if $reading_texi;
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