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#!/usr/bin/env perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 2019 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
#
# Scan man page(s) and detect some simple and yet common formatting mistakes.
#
# Output all deviances to stderr.
use strict;
use warnings;
# we may get the dir roots pointed out
my @manpages=@ARGV;
my $errors = 0;
my %blessed;
my @order = (
'NAME',
'SYNOPSIS',
'DESCRIPTION',
#'DEFAULT', # CURLINFO_ has no default
'PROTOCOLS',
'EXAMPLE',
'AVAILABILITY',
'RETURN VALUE',
'SEE ALSO'
);
my %shline; # section => line number
sub scanmanpage {
my ($file) = @_;
my $reqex = 0;
my $inex = 0;
my $exsize = 0;
my $shc = 0;
my @sh;
print "Check $file\n";
open(M, "<$file") || die "no such file: $file";
if($file =~ /\/CURL[^\/]*.3/) {
# This is the man page for an libcurl option. It requires an example!
$reqex = 1;
}
my $line = 1;
while(<M>) {
if($_ =~ /^.SH EXAMPLE/i) {
$inex = 1;
}
elsif($_ =~ /^.SH/i) {
$inex = 0;
}
elsif($inex) {
$exsize++;
}
if($_ =~ /^.SH (.*)/i) {
my $n = $1;
# remove enclosing quotes
$n =~ s/\"(.*)\"\z/$1/;
push @sh, $n;
$shline{$n} = $line;
}
if($_ =~ /^\'/) {
print STDERR "$file:$line line starts with single quote!\n";
$errors++;
}
if($_ =~ /\\f([BI])(.*)/) {
my ($format, $rest) = ($1, $2);
if($rest !~ /\\fP/) {
print STDERR "$file:$line missing \\f${format} terminator!\n";
$errors++;
}
}
if($_ =~ /[ \t]+$/) {
print STDERR "$file:$line trailing whitespace\n";
$errors++;
}
$line++;
}
close(M);
if($reqex) {
# only for libcurl options man-pages
if($exsize < 2) {
print STDERR "$file:$line missing EXAMPLE section\n";
$errors++;
}
my $got;
my $i = 0;
my $shused = 1;
do {
$got = shift(@sh);
if($got) {
$i = $blessed{$got};
}
if($i && $got) {
# mandatory section
if($i != $shused) {
printf STDERR "$file:%u Got $got, when %s was expected\n",
$shline{$got},
$order[$shused-1];
$errors++;
return;
}
$shused++;
if($i == 9) {
# last mandatory one, exit
$got="";
}
}
} while($got);
if($i != 8) {
printf STDERR "$file:$line missing mandatory section: %s\n",
$order[$i];
$errors++;
}
}
}
my $ind = 1;
for my $s (@order) {
$blessed{$s} = $ind++
}
for my $m (@manpages) {
scanmanpage($m);
}
print STDERR "ok\n" if(!$errors);
exit $errors;
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