diff options
Diffstat (limited to 'vendor/gems/coderay-1.0.0/lib/coderay/scanners/diff.rb')
| -rw-r--r-- | vendor/gems/coderay-1.0.0/lib/coderay/scanners/diff.rb | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/vendor/gems/coderay-1.0.0/lib/coderay/scanners/diff.rb b/vendor/gems/coderay-1.0.0/lib/coderay/scanners/diff.rb deleted file mode 100644 index fd70016d8..000000000 --- a/vendor/gems/coderay-1.0.0/lib/coderay/scanners/diff.rb +++ /dev/null @@ -1,201 +0,0 @@ -module CodeRay -module Scanners - - # Scanner for output of the diff command. - # - # Alias: +patch+ - class Diff < Scanner - - register_for :diff - title 'diff output' - - DEFAULT_OPTIONS = { - :highlight_code => true, - :inline_diff => true, - } - - protected - - require 'coderay/helpers/file_type' - - def scan_tokens encoder, options - - line_kind = nil - state = :initial - deleted_lines = 0 - scanners = Hash.new do |h, lang| - h[lang] = Scanners[lang].new '', :keep_tokens => true, :keep_state => true - end - content_scanner = scanners[:plain] - content_scanner_entry_state = nil - - until eos? - - if match = scan(/\n/) - deleted_lines = 0 unless line_kind == :delete - if line_kind - encoder.end_line line_kind - line_kind = nil - end - encoder.text_token match, :space - next - end - - case state - - when :initial - if match = scan(/--- |\+\+\+ |=+|_+/) - encoder.begin_line line_kind = :head - encoder.text_token match, :head - if match = scan(/.*?(?=$|[\t\n\x00]| \(revision)/) - encoder.text_token match, :filename - if options[:highlight_code] - file_type = FileType.fetch(match, :text) - file_type = :text if file_type == :diff - content_scanner = scanners[file_type] - content_scanner_entry_state = nil - end - end - next unless match = scan(/.+/) - encoder.text_token match, :plain - elsif match = scan(/Index: |Property changes on: /) - encoder.begin_line line_kind = :head - encoder.text_token match, :head - next unless match = scan(/.+/) - encoder.text_token match, :plain - elsif match = scan(/Added: /) - encoder.begin_line line_kind = :head - encoder.text_token match, :head - next unless match = scan(/.+/) - encoder.text_token match, :plain - state = :added - elsif match = scan(/\\ .*/) - encoder.text_token match, :comment - elsif match = scan(/@@(?>[^@\n]*)@@/) - content_scanner.state = :initial unless match?(/\n\+/) - content_scanner_entry_state = nil - if check(/\n|$/) - encoder.begin_line line_kind = :change - else - encoder.begin_group :change - end - encoder.text_token match[0,2], :change - encoder.text_token match[2...-2], :plain - encoder.text_token match[-2,2], :change - encoder.end_group :change unless line_kind - next unless match = scan(/.+/) - if options[:highlight_code] - content_scanner.tokenize match, :tokens => encoder - else - encoder.text_token match, :plain - end - next - elsif match = scan(/\+/) - encoder.begin_line line_kind = :insert - encoder.text_token match, :insert - next unless match = scan(/.+/) - if options[:highlight_code] - content_scanner.tokenize match, :tokens => encoder - else - encoder.text_token match, :plain - end - next - elsif match = scan(/-/) - deleted_lines += 1 - encoder.begin_line line_kind = :delete - encoder.text_token match, :delete - if options[:inline_diff] && deleted_lines == 1 && check(/(?>.*)\n\+(?>.*)$(?!\n\+)/) - content_scanner_entry_state = content_scanner.state - skip(/(.*)\n\+(.*)$/) - head, deletion, insertion, tail = diff self[1], self[2] - pre, deleted, post = content_scanner.tokenize [head, deletion, tail], :tokens => Tokens.new - encoder.tokens pre - unless deleted.empty? - encoder.begin_group :eyecatcher - encoder.tokens deleted - encoder.end_group :eyecatcher - end - encoder.tokens post - encoder.end_line line_kind - encoder.text_token "\n", :space - encoder.begin_line line_kind = :insert - encoder.text_token '+', :insert - content_scanner.state = content_scanner_entry_state || :initial - pre, inserted, post = content_scanner.tokenize [head, insertion, tail], :tokens => Tokens.new - encoder.tokens pre - unless inserted.empty? - encoder.begin_group :eyecatcher - encoder.tokens inserted - encoder.end_group :eyecatcher - end - encoder.tokens post - elsif match = scan(/.*/) - if options[:highlight_code] - if deleted_lines == 1 - content_scanner_entry_state = content_scanner.state - end - content_scanner.tokenize match, :tokens => encoder unless match.empty? - if !match?(/\n-/) - if match?(/\n\+/) - content_scanner.state = content_scanner_entry_state || :initial - end - content_scanner_entry_state = nil - end - else - encoder.text_token match, :plain - end - end - next - elsif match = scan(/ .*/) - if options[:highlight_code] - content_scanner.tokenize match, :tokens => encoder - else - encoder.text_token match, :plain - end - next - elsif match = scan(/.+/) - encoder.begin_line line_kind = :comment - encoder.text_token match, :plain - else - raise_inspect 'else case rached' - end - - when :added - if match = scan(/ \+/) - encoder.begin_line line_kind = :insert - encoder.text_token match, :insert - next unless match = scan(/.+/) - encoder.text_token match, :plain - else - state = :initial - next - end - end - - end - - encoder.end_line line_kind if line_kind - - encoder - end - - private - - def diff a, b - # i will be the index of the leftmost difference from the left. - i_max = [a.size, b.size].min - i = 0 - i += 1 while i < i_max && a[i] == b[i] - # j_min will be the index of the leftmost difference from the right. - j_min = i - i_max - # j will be the index of the rightmost difference from the right which - # does not precede the leftmost one from the left. - j = -1 - j -= 1 while j >= j_min && a[j] == b[j] - return a[0...i], a[i..j], b[i..j], (j < -1) ? a[j+1..-1] : '' - end - - end - -end -end |