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#!/usr/bin/env perl
use strict;
use warnings;
use POSIX qw(strftime);
use JSON;
use File::Basename;
#my $cmake = "/home/pboettch/devel/upstream/cmake/build/bin/cmake";
my $cmake = "cmake";
my @variables;
my @commands;
my @properties;
my @modules;
my %keywords; # command => keyword-list
# find cmake/Modules/ | sed -rn 's/.*CMakeDetermine(.+)Compiler.cmake/\1/p' | sort
my @languages = qw(ASM ASM_MASM ASM_NASM C CSharp CUDA CXX Fortran Java RC Swift);
# unwanted upper-cases
my %unwanted = map { $_ => 1 } qw(VS CXX IDE NOTFOUND NO_ DFOO DBAR NEW);
# cannot remove ALL - exists for add_custom_command
# control-statements
my %conditional = map { $_ => 1 } qw(if else elseif endif);
my %loop = map { $_ => 1 } qw(foreach while endforeach endwhile);
# decrecated
my %deprecated = map { $_ => 1 } qw(build_name exec_program export_library_dependencies install_files install_programs install_targets link_libraries make_directory output_required_files remove subdir_depends subdirs use_mangled_mesa utility_source variable_requires write_file);
# add some (popular) modules
push @modules, "ExternalProject";
# variables
open(CMAKE, "$cmake --help-variable-list|") or die "could not run cmake";
while (<CMAKE>) {
chomp;
if (/<(.*?)>/) {
if ($1 eq 'LANG') {
foreach my $lang (@languages) {
(my $V = $_) =~ s/<.*>/$lang/;
push @variables, $V;
}
next
} else {
next; # skip if containing < or >
}
}
push @variables, $_;
}
close(CMAKE);
# transform all variables in a hash - to be able to use exists later on
my %variables = map { $_ => 1 } @variables;
# commands
open(CMAKE, "$cmake --help-command-list|");
while (my $cmd = <CMAKE>) {
chomp $cmd;
push @commands, $cmd;
}
close(CMAKE);
# now generate a keyword-list per command
foreach my $cmd (@commands) {
my @word = extract_upper("$cmake --help-command $cmd|");
next if scalar @word == 0;
$keywords{$cmd} = [ sort keys %{ { map { $_ => 1 } @word } } ];
}
# and now for modules
foreach my $mod (@modules) {
my @word = extract_upper("$cmake --help-module $mod|");
next if scalar @word == 0;
$keywords{$mod} = [ sort keys %{ { map { $_ => 1 } @word } } ];
}
# and now for generator-expressions
my @generator_expr = extract_upper("$cmake --help-manual cmake-generator-expressions |");
# properties
open(CMAKE, "$cmake --help-property-list|");
while (<CMAKE>) {
next if /\</; # skip if containing < or >
chomp;
push @properties, $_;
}
close(CMAKE);
# transform all properties in a hash
my %properties = map { $_ => 1 } @properties;
# read in manually written files
my $modules_dir = dirname(__FILE__) . "/modules";
opendir(DIR, $modules_dir) || die "can't opendir $modules_dir: $!";
my @json_files = grep { /\.json$/ && -f "$modules_dir/$_" } readdir(DIR);
closedir DIR;
foreach my $file (@json_files) {
local $/; # Enable 'slurp' mode
open my $fh, "<", $modules_dir."/".$file;
my $json = <$fh>;
close $fh;
my $mod = decode_json($json);
foreach my $var (@{$mod->{variables}}) {
$variables{$var} = 1;
}
while (my ($cmd, $keywords) = each %{$mod->{commands}}) {
$keywords{$cmd} = [ sort @{$keywords} ];
}
}
# version
open(CMAKE, "$cmake --version|");
my $version = 'unknown';
while (<CMAKE>) {
chomp;
$version = $_ if /cmake version/;
}
close(CMAKE);
# generate cmake.vim
open(IN, "<cmake.vim.in") or die "could not read cmake.vim.in";
open(OUT, ">syntax/cmake.vim") or die "could not write to syntax/cmake.vim";
my @keyword_hi;
while(<IN>)
{
if (m/\@([A-Z0-9_]+)\@/) { # match for @SOMETHING@
if ($1 eq "COMMAND_LIST") {
# do not include "special" commands in this list
my @tmp = grep { ! exists $conditional{$_} and
! exists $loop{$_} and
! exists $deprecated{$_} } @commands;
print_list(\*OUT, @tmp);
} elsif ($1 eq "VARIABLE_LIST") {
print_list(\*OUT, keys %variables);
} elsif ($1 eq "MODULES") {
print_list(\*OUT, @modules);
} elsif ($1 eq "GENERATOR_EXPRESSIONS") {
print_list(\*OUT, @generator_expr);
} elsif ($1 eq "CONDITIONALS") {
print_list(\*OUT, keys %conditional);
} elsif ($1 eq "LOOPS") {
print_list(\*OUT, keys %loop);
} elsif ($1 eq "DEPRECATED") {
print_list(\*OUT, keys %deprecated);
} elsif ($1 eq "PROPERTIES") {
print_list(\*OUT, keys %properties);
} elsif ($1 eq "KEYWORDS") {
foreach my $k (sort keys %keywords) {
print OUT "syn keyword cmakeKW$k contained\n";
print_list(\*OUT, @{$keywords{$k}});
print OUT "\n";
push @keyword_hi, "hi def link cmakeKW$k ModeMsg";
}
} elsif ($1 eq "KEYWORDS_HIGHLIGHT") {
print OUT join("\n", @keyword_hi), "\n";
} elsif ($1 eq "VERSION") {
$_ =~ s/\@VERSION\@/$version/;
print OUT $_;
} elsif ($1 eq "DATE") {
my $date = strftime "%Y %b %d", localtime;
$_ =~ s/\@DATE\@/$date/;
print OUT $_;
} else {
print "ERROR do not know how to replace $1\n";
}
} else {
print OUT $_;
}
}
close(IN);
close(OUT);
sub extract_upper
{
my $input = shift;
my @word;
open(KW, $input);
while (<KW>) {
foreach my $w (m/\b([A-Z_]{2,})\b/g) {
next
if exists $variables{$w} or # skip if it is a variable
exists $unwanted{$w} or # skip if not wanted
grep(/$w/, @word); # skip if already in array
push @word, $w;
}
}
close(KW);
return @word;
}
sub print_list
{
my $O = shift;
my $indent = " " x 12 . "\\ ";
print $O $indent, join("\n" . $indent, sort @_), "\n";
}
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