Initial Commit

database/perl/lib/Perl/PrereqScanner/NotQuiteLite/Parser/SyntaxCollector.pm

@@ -0,0 +1,89 @@
+package Perl::PrereqScanner::NotQuiteLite::Parser::SyntaxCollector;
+
+use strict;
+use warnings;
+use Perl::PrereqScanner::NotQuiteLite::Util;
+
+sub register { return {
+  use => {
+    'Syntax::Collector' => 'parse_syntax_collector_args',
+  },
+}}
+
+sub parse_syntax_collector_args {
+  my ($class, $c, $used_module, $raw_tokens) = @_;
+
+  my $tokens = convert_string_token_list($raw_tokens);
+
+  if (is_version($tokens->[0])) {
+    $c->add($used_module => shift @$tokens);
+  }
+
+  my $spec;
+  if (!(@$tokens % 2)) {
+    while(my ($key, $value) = splice @$tokens, 0, 2) {
+      my $keystr = ref $key ? $key->[0] : $key;
+      if ($keystr eq '-collect') {
+        $spec = $value;
+        last;
+      }
+    }
+  } else {
+    $spec = $tokens->[0];
+  }
+  if (ref $spec) {
+    $spec = $spec->[0];
+  }
+  return unless $spec;
+
+  my @features =
+    map {
+      m{^
+        (use|no) \s+      # "use" or "no"
+        (\S+) \s+         # module name
+        ([\d\._v]+)       # module version
+        (?:               # everything else
+          \s* (.+)
+        )?                #    ... perhaps
+        [;] \s*           # semicolon
+      $}x
+        ? [$1, $2, $3, [ defined($4) ? eval "($4)" : ()] ]
+        : die("Line q{$_} doesn't conform to 'use MODULE VERSION [ARGS];'")
+    }
+    grep { ! m/^#/ }                # not a comment
+    grep { m/[A-Z0-9]/i }           # at least one alphanum
+    map  { s/(^\s+)|(\s+$)//; $_ }  # trim
+    map  { split /(\r?\n|\r)/ }     # split lines
+    $spec;
+
+  for my $feature (@features) {
+    $c->add($feature->[1], $feature->[2]);
+  }
+}
+
+1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Perl::PrereqScanner::NotQuiteLite::Parser::SyntaxCollector
+
+=head1 DESCRIPTION
+
+This parser is to deal with modules loading by L<Syntax::Collector> module.
+
+=head1 AUTHOR
+
+Kenichi Ishigaki, E<lt>ishigaki@cpan.orgE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2017 by Kenichi Ishigaki.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut