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scripts: get_abi.pl: change script to allow parsing in ReST mode

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Right now, several ABI files won't parse as ReST, as they
contain severe violations to the spec, with makes the script
to crash.

So, the code has a sanity logic with escapes bad code and
cleans tags that can cause Sphinx to crash.

Add support for disabling this mode.

Right now, as enabling rst-mode causes crash, it is disabled
by default.

Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/34b691e3002e8987c24d851fe37640f95e506a92.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-10-30 08:40:20 +01:00 committed by Greg Kroah-Hartman
parent 0d519cbf38
commit 11ce90a45d
1 changed files with 48 additions and 26 deletions
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74
scripts/get_abi.pl
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@ -12,8 +12,14 @@ my $man;
my $debug;
my $prefix="Documentation/ABI";
#
# If true, assumes that the description is formatted with ReST
#
my $description_is_rst = 0;
GetOptions(
"debug|d+" => \$debug,
"rst-source!" => \$description_is_rst,
"dir=s" => \$prefix,
'help|?' => \$help,
man => \$man
@ -137,14 +143,15 @@ sub parse_abi {
next;
}
if ($tag eq "description") {
next if ($content =~ m/^\s*$/);
if ($content =~ m/^(\s*)(.*)/) {
my $new_content = $2;
$space = $new_tag . $sep . $1;
while ($space =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
$space =~ s/./ /g;
$data{$what}->{$tag} .= "$new_content\n";
# Preserve initial spaces for the first line
$content = ' ' x length($new_tag) . $sep . $content;
$content =~ s,^(\s*):,$1 ,;
if ($content =~ m/^(\s*)(.*)$/) {
$space = $1;
$content = $2;
}
while ($space =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
$data{$what}->{$tag} .= $content;
} else {
$data{$what}->{$tag} = $content;
}
@ -160,11 +167,15 @@ sub parse_abi {
if ($tag eq "description") {
if (!$data{$what}->{description}) {
next if (m/^\s*\n/);
s/^($space)//;
if (m/^(\s*)(.*)/) {
$space = $1;
while ($space =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
$data{$what}->{$tag} .= "$2\n";
my $sp = $1;
while ($sp =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {}
my $content = "$sp$2";
$content =~ s/^($space)//;
$data{$what}->{$tag} .= "$content";
}
} else {
my $content = $_;
@ -274,23 +285,27 @@ sub output_rest {
print "Defined on file :ref:`$file <$fileref>`\n\n" if ($type ne "File");
my $desc = $data{$what}->{description};
$desc =~ s/^\s+//;
# Remove title markups from the description, as they won't work
$desc =~ s/\n[\-\*\=\^\~]+\n/\n/g;
if (!($desc =~ /^\s*$/)) {
if ($desc =~ m/\:\n/ || $desc =~ m/\n[\t ]+/ || $desc =~ m/[\x00-\x08\x0b-\x1f\x7b-\xff]/) {
# put everything inside a code block
$desc =~ s/\n/\n /g;
print "::\n\n";
print " $desc\n\n";
} else {
# Escape any special chars from description
$desc =~s/([\x00-\x08\x0b-\x1f\x21-\x2a\x2d\x2f\x3c-\x40\x5c\x5e-\x60\x7b-\xff])/\\$1/g;
if ($description_is_rst) {
print "$desc\n\n";
} else {
$desc =~ s/^\s+//;
# Remove title markups from the description, as they won't work
$desc =~ s/\n[\-\*\=\^\~]+\n/\n\n/g;
if ($desc =~ m/\:\n/ || $desc =~ m/\n[\t ]+/ || $desc =~ m/[\x00-\x08\x0b-\x1f\x7b-\xff]/) {
# put everything inside a code block
$desc =~ s/\n/\n /g;
print "::\n\n";
print " $desc\n\n";
} else {
# Escape any special chars from description
$desc =~s/([\x00-\x08\x0b-\x1f\x21-\x2a\x2d\x2f\x3c-\x40\x5c\x5e-\x60\x7b-\xff])/\\$1/g;
print "$desc\n\n";
}
}
} else {
print "DESCRIPTION MISSING for $what\n\n" if (!$data{$what}->{is_file});
@ -382,7 +397,7 @@ abi_book.pl - parse the Linux ABI files and produce a ReST book.
=head1 SYNOPSIS
B<abi_book.pl> [--debug] [--man] [--help] [--dir=<dir>] <COMAND> [<ARGUMENT>]
B<abi_book.pl> [--debug] [--man] [--help] --[(no-)rst-source] [--dir=<dir>] <COMAND> [<ARGUMENT>]
Where <COMMAND> can be:
@ -405,6 +420,13 @@ B<validate> - validate the ABI contents
Changes the location of the ABI search. By default, it uses
the Documentation/ABI directory.
=item B<--rst-source> and B<--no-rst-source>
The input file may be using ReST syntax or not. Those two options allow
selecting between a rst-compliant source ABI (--rst-source), or a
plain text that may be violating ReST spec, so it requres some escaping
logic (--no-rst-source).
=item B<--debug>
Put the script in verbose mode, useful for debugging. Can be called multiple