diff options
Diffstat (limited to 'scripts/kernel-doc-xml-ref')
| -rwxr-xr-x | scripts/kernel-doc-xml-ref | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/scripts/kernel-doc-xml-ref b/scripts/kernel-doc-xml-ref new file mode 100755 index 000000000000..104a5a5ba2c8 --- /dev/null +++ b/scripts/kernel-doc-xml-ref @@ -0,0 +1,198 @@ +#!/usr/bin/perl -w + +use strict; + +## Copyright (C) 2015 Intel Corporation ## +# ## +## This software falls under the GNU General Public License. ## +## Please read the COPYING file for more information ## +# +# +# This software reads a XML file and a list of valid interal +# references to replace Docbook tags with links. +# +# The list of "valid internal references" must be one-per-line in the following format: +# API-struct-foo +# API-enum-bar +# API-my-function +# +# The software walks over the XML file looking for xml tags representing possible references +# to the Document. Each reference will be cross checked against the "Valid Internal Reference" list. If +# the referece is found it replaces its content by a <link> tag. +# +# usage: +# kernel-doc-xml-ref -db filename +# xml filename > outputfile + +# read arguments +if ($#ARGV != 2) { + usage(); +} + +#Holds the database filename +my $databasefile; +my @database; + +#holds the inputfile +my $inputfile; +my $errors = 0; + +my %highlights = ( + "<function>(.*?)</function>", + "\"<function>\" . convert_function(\$1, \$line) . \"</function>\"", + "<structname>(.*?)</structname>", + "\"<structname>\" . convert_struct(\$1) . \"</structname>\"", + "<funcdef>(.*?)<function>(.*?)</function></funcdef>", + "\"<funcdef>\" . convert_param(\$1) . \"<function>\$2</function></funcdef>\"", + "<paramdef>(.*?)<parameter>(.*?)</parameter></paramdef>", + "\"<paramdef>\" . convert_param(\$1) . \"<parameter>\$2</parameter></paramdef>\""); + +while($ARGV[0] =~ m/^-(.*)/) { + my $cmd = shift @ARGV; + if ($cmd eq "-db") { + $databasefile = shift @ARGV + } else { + usage(); + } +} +$inputfile = shift @ARGV; + +sub open_database { + open (my $handle, '<', $databasefile) or die "Cannot open $databasefile"; + chomp(my @lines = <$handle>); + close $handle; + + @database = @lines; +} + +sub process_file { + open_database(); + + my $dohighlight; + foreach my $pattern (keys %highlights) { + $dohighlight .= "\$line =~ s:$pattern:$highlights{$pattern}:eg;\n"; + } + + open(FILE, $inputfile) or die("Could not open $inputfile") or die ("Cannot open $inputfile"); + foreach my $line (<FILE>) { + eval $dohighlight; + print $line; + } +} + +sub trim($_) +{ + my $str = $_[0]; + $str =~ s/^\s+|\s+$//g; + return $str +} + +sub has_key_defined($_) +{ + if ( grep( /^$_[0]$/, @database)) { + return 1; + } + return 0; +} + +# Gets a <function> content and add it a hyperlink if possible. +sub convert_function($_) +{ + my $arg = $_[0]; + my $key = $_[0]; + + my $line = $_[1]; + + $key = trim($key); + + $key =~ s/[^A-Za-z0-9]/-/g; + $key = "API-" . $key; + + # We shouldn't add links to <funcdef> prototype + if (!has_key_defined($key) || $line =~ m/\s+<funcdef/i) { + return $arg; + } + + my $head = $arg; + my $tail = ""; + if ($arg =~ /(.*?)( ?)$/) { + $head = $1; + $tail = $2; + } + return "<link linkend=\"$key\">$head</link>$tail"; +} + +# Converting a struct text to link +sub convert_struct($_) +{ + my $arg = $_[0]; + my $key = $_[0]; + $key =~ s/(struct )?(\w)/$2/g; + $key =~ s/[^A-Za-z0-9]/-/g; + $key = "API-struct-" . $key; + + if (!has_key_defined($key)) { + return $arg; + } + + my ($head, $tail) = split_pointer($arg); + return "<link linkend=\"$key\">$head</link>$tail"; +} + +# Identify "object *" elements +sub split_pointer($_) +{ + my $arg = $_[0]; + if ($arg =~ /(.*?)( ?\* ?)/) { + return ($1, $2); + } + return ($arg, ""); +} + +sub convert_param($_) +{ + my $type = $_[0]; + my $keyname = convert_key_name($type); + + if (!has_key_defined($keyname)) { + return $type; + } + + my ($head, $tail) = split_pointer($type); + return "<link linkend=\"$keyname\">$head</link>$tail"; + +} + +# DocBook links are in the API-<TYPE>-<STRUCT-NAME> format +# This method gets an element and returns a valid DocBook reference for it. +sub convert_key_name($_) +{ + #Pattern $2 is optional and might be uninitialized + no warnings 'uninitialized'; + + my $str = $_[0]; + $str =~ s/(const|static)? ?(struct)? ?([a-zA-Z0-9_]+) ?(\*|&)?/$2 $3/g ; + + # trim + $str =~ s/^\s+|\s+$//g; + + # spaces and _ to - + $str =~ s/[^A-Za-z0-9]/-/g; + + return "API-" . $str; +} + +sub usage { + print "Usage: $0 -db database filename\n"; + print " xml source file(s) > outputfile\n"; + exit 1; +} + +# starting point +process_file(); + +if ($errors) { + print STDERR "$errors errors\n"; +} + +exit($errors); |