1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
#!/usr/bin/perl -w
#
# Script to convert .hx file STEXI/ETEXI blocks to SRST/ERST
#
# Copyright (C) 2020 Linaro
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# (at your option) any later version. See the COPYING file in the
# top-level directory.
# This script was only ever intended as a one-off conversion operation.
# Please excuse the places where it is a bit hacky.
# Some manual intervention after the conversion is expected, as are
# some warnings from makeinfo.
# Warning: this script is not idempotent: don't try to run it on
# a .hx file that already has SRST/ERST sections.
# Expected usage:
# scripts/hxtool-conv.pl file.hx > file.hx.new
use utf8;
my $reading_texi = 0;
my $texiblock = '';
my @tables = ();
sub update_tables($) {
my ($texi) = @_;
# Update our list of open table directives: every @table
# line in the texi fragment is added to the list, and every
# @end table line means we remove an entry from the list.
# If this fragment had a completely self contained table with
# both the @table and @end table lines, this will be a no-op.
foreach (split(/\n/, $texi)) {
push @tables, $_ if /^\@table/;
pop @tables if /^\@end table/;
}
}
sub only_table_directives($) {
# Return true if every line in the fragment is a start or end table directive
my ($texi) = @_;
foreach (split(/\n/, $texi)) {
return 0 unless /^\@table/ or /^\@end table/;
}
return 1;
}
sub output_rstblock($) {
# Write the output to /tmp/frag.texi, wrapped in whatever current @table
# lines we need.
my ($texi) = @_;
# As a special case, if this fragment is only table directives and
# nothing else, update our set of open table directives but otherwise
# ignore it. This avoids emitting an empty SRST/ERST block.
if (only_table_directives($texi)) {
update_tables($texi);
return;
}
open(my $fragfh, '>', '/tmp/frag.texi');
# First output the currently active set of open table directives
print $fragfh join("\n", @tables);
# Next, update our list of open table directives.
# We need to do this before we emit the closing table directives
# so that we emit the right number if this fragment had an
# unbalanced set of directives.
update_tables($texi);
# Then emit the texi fragment itself.
print $fragfh "\n$texi\n";
# Finally, add the necessary closing table directives.
print $fragfh "\@end table\n" x scalar @tables;
close $fragfh;
# Now invoke makeinfo/pandoc on it and slurp the results into a string
open(my $fh, '-|', "makeinfo --force -o - --docbook "
. "-D 'qemu_system_x86 QEMU_SYSTEM_X86_MACRO' "
. "-D 'qemu_system QEMU_SYSTEM_MACRO' /tmp/frag.texi "
. " | pandoc -f docbook -t rst")
or die "can't start makeinfo/pandoc: $!";
binmode $fh, ':encoding(utf8)';
print "SRST\n";
# Slurp the whole thing into a string so we can do multiline
# string matches on it.
my $rst = do {
local $/ = undef;
<$fh>;
};
$rst =~ s/^- − /- /gm;
$rst =~ s/“/"/gm;
$rst =~ s/”/"/gm;
$rst =~ s/‘/'/gm;
$rst =~ s/’/'/gm;
$rst =~ s/QEMU_SYSTEM_MACRO/|qemu_system|/g;
$rst =~ s/QEMU_SYSTEM_X86_MACRO/|qemu_system_x86|/g;
$rst =~ s/(?=::\n\n +\|qemu)/.. parsed-literal/g;
$rst =~ s/:\n\n::$/::/gm;
# Fix up the invalid reference format makeinfo/pandoc emit:
# `Some string here <#anchorname>`__
# should be:
# :ref:`anchorname`
$rst =~ s/\`[^<`]+\<\#([^>]+)\>\`__/:ref:`$1`/gm;
print $rst;
close $fh or die "error on close: $!";
print "ERST\n";
}
# Read the whole .hx input file.
while (<>) {
# Always print the current line
print;
if (/STEXI/) {
$reading_texi = 1;
$texiblock = '';
next;
}
if (/ETEXI/) {
$reading_texi = 0;
# dump RST version of block
output_rstblock($texiblock);
next;
}
if ($reading_texi) {
# Accumulate the texi into a string
# but drop findex entries as they will confuse makeinfo
next if /^\@findex/;
$texiblock .= $_;
}
}
die "Unexpectedly still in texi block at EOF" if $reading_texi;
|
