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Diffstat (limited to 'vendor/gems/coderay-0.9.7/lib/coderay/encoders/lines_of_code.rb')
| -rw-r--r-- | vendor/gems/coderay-0.9.7/lib/coderay/encoders/lines_of_code.rb | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/vendor/gems/coderay-0.9.7/lib/coderay/encoders/lines_of_code.rb b/vendor/gems/coderay-0.9.7/lib/coderay/encoders/lines_of_code.rb new file mode 100644 index 000000000..c1ad66e2e --- /dev/null +++ b/vendor/gems/coderay-0.9.7/lib/coderay/encoders/lines_of_code.rb @@ -0,0 +1,90 @@ +($:.unshift '../..'; require 'coderay') unless defined? CodeRay +module CodeRay +module Encoders + + # Counts the LoC (Lines of Code). Returns an Integer >= 0. + # + # Alias: :loc + # + # Everything that is not comment, markup, doctype/shebang, or an empty line, + # is considered to be code. + # + # For example, + # * HTML files not containing JavaScript have 0 LoC + # * in a Java class without comments, LoC is the number of non-empty lines + # + # A Scanner class should define the token kinds that are not code in the + # KINDS_NOT_LOC constant, which defaults to [:comment, :doctype]. + class LinesOfCode < Encoder + + register_for :lines_of_code + + NON_EMPTY_LINE = /^\s*\S.*$/ + + def compile tokens, options + if scanner = tokens.scanner + kinds_not_loc = scanner.class::KINDS_NOT_LOC + else + warn ArgumentError, 'Tokens have no scanner.' if $VERBOSE + kinds_not_loc = CodeRay::Scanners::Scanner::KINDS_NOT_LOC + end + code = tokens.token_class_filter :exclude => kinds_not_loc + @loc = code.text.scan(NON_EMPTY_LINE).size + end + + def finish options + @loc + end + + end + +end +end + +if $0 == __FILE__ + $VERBOSE = true + $: << File.join(File.dirname(__FILE__), '..') + eval DATA.read, nil, $0, __LINE__ + 4 +end + +__END__ +require 'test/unit' + +class LinesOfCodeTest < Test::Unit::TestCase + + def test_creation + assert CodeRay::Encoders::LinesOfCode < CodeRay::Encoders::Encoder + filter = nil + assert_nothing_raised do + filter = CodeRay.encoder :loc + end + assert_kind_of CodeRay::Encoders::LinesOfCode, filter + assert_nothing_raised do + filter = CodeRay.encoder :lines_of_code + end + assert_kind_of CodeRay::Encoders::LinesOfCode, filter + end + + def test_lines_of_code + tokens = CodeRay.scan <<-RUBY, :ruby +#!/usr/bin/env ruby + +# a minimal Ruby program +puts "Hello world!" + RUBY + assert_equal 1, CodeRay::Encoders::LinesOfCode.new.encode_tokens(tokens) + assert_equal 1, tokens.lines_of_code + assert_equal 1, tokens.loc + end + + def test_filtering_block_tokens + tokens = CodeRay::Tokens.new + tokens << ["Hello\n", :world] + tokens << ["Hello\n", :space] + tokens << ["Hello\n", :comment] + assert_equal 2, CodeRay::Encoders::LinesOfCode.new.encode_tokens(tokens) + assert_equal 2, tokens.lines_of_code + assert_equal 2, tokens.loc + end + +end
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