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Scss scanner#162
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3feac5b cloning from Sass
Piderman27ba390 default flags for variables
Piderman70c2e86 placeholder as class
Piderman00509ec project setup
Piderman1041c84 nested class selectors
Pidermanf2c649e housekeeping
Pidermanb1051c1 housekeeping
Pidermand00819a Merge branch 'scss-scanner' of https://github.com/Piderman/coderay in…
Piderman9c23396 issue tracking
Piderman5612445 nested tags work
Pidermanfb06a23 nested id
Piderman23d29c3 issues
Piderman52b0d12 removed block, changed inline key-tag logic
Pidermandd03707 classes now capture inline variables
Piderman6a30790 removing local project files
Piderman4fdd080 removing project file
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1 change: 1 addition & 0 deletionslib/coderay/helpers/file_type.rb
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222 changes: 222 additions & 0 deletionslib/coderay/scanners/scss.rb
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,222 @@ | ||
| module CodeRay | ||
| module Scanners | ||
| # A scanner for Sass, in scss syntax. | ||
| class SCSS < CSS | ||
| register_for :scss | ||
| file_extension 'scss' | ||
| protected | ||
| def setup | ||
| @state = :initial | ||
| end | ||
| def scan_tokens encoder, options | ||
| states = Array(options[:state] || @state).dup | ||
| encoder.begin_group :string if states.last == :sqstring || states.last == :dqstring | ||
| until eos? | ||
| if bol? && (match = scan(/(?>( +)?(\/[\*\/])(.+)?)(?=\n)/)) | ||
| encoder.text_token self[1], :space if self[1] | ||
| encoder.begin_group :comment | ||
| encoder.text_token self[2], :delimiter | ||
| encoder.text_token self[3], :content if self[3] | ||
| if match = scan(/(?:\n+#{self[1]} .*)+/) | ||
| encoder.text_token match, :content | ||
| end | ||
| encoder.end_group :comment | ||
| elsif match = scan(/\n|[^\n\S]+\n?/) | ||
| encoder.text_token match, :space | ||
| if match.index(/\n/) | ||
| value_expected = false | ||
| states.pop if states.last == :include | ||
| end | ||
| elsif states.last == :sass_inline && (match = scan(/\}/)) | ||
| encoder.text_token match, :inline_delimiter | ||
| encoder.end_group :inline | ||
| states.pop | ||
| elsif case states.last | ||
| when :initial, :media, :sass_inline | ||
| if match = scan(/(?>#{RE::Ident})(?!\()/ox) | ||
| encoder.text_token match, value_expected ? :value : (check(/\S*:(?![a-z])/) ? :key : :tag) | ||
| next | ||
| elsif !value_expected && (match = scan(/\*/)) | ||
| encoder.text_token match, :tag | ||
| next | ||
| # TODO: update RE:Name to add "%" as valid start of class name | ||
| elsif match = scan(/(\.|\%)[^\d][-_a-zA-Z\d#\{\}\$]+/) | ||
| encoder.text_token match, :class | ||
| next | ||
| elsif match = scan(RE::Id) | ||
| encoder.text_token match, :id | ||
| next | ||
| elsif match = scan(RE::PseudoClass) | ||
| encoder.text_token match, :pseudo_class | ||
| next | ||
| elsif match = scan(RE::AttributeSelector) | ||
| # TODO: Improve highlighting inside of attribute selectors. | ||
| encoder.text_token match[0,1], :operator | ||
| encoder.text_token match[1..-2], :attribute_name if match.size > 2 | ||
| encoder.text_token match[-1,1], :operator if match[-1] == ?] | ||
| next | ||
| elsif match = scan(/(\=|@mixin +)#{RE::Ident}/o) | ||
| encoder.text_token match, :function | ||
| next | ||
| elsif match = scan(/@import\b/) | ||
| encoder.text_token match, :directive | ||
| states << :include | ||
| next | ||
| elsif match = scan(/@media\b/) | ||
| encoder.text_token match, :directive | ||
| # states.push :media_before_name | ||
| next | ||
| end | ||
| when :sqstring, :dqstring | ||
| if match = scan(states.last == :sqstring ? /(?:[^\n\'\#]+|\\\n|#{RE::Escape}|#(?!\{))+/o : /(?:[^\n\"\#]+|\\\n|#{RE::Escape}|#(?!\{))+/o) | ||
| encoder.text_token match, :content | ||
| elsif match = scan(/['"]/) | ||
| encoder.text_token match, :delimiter | ||
| encoder.end_group :string | ||
| states.pop | ||
| elsif match = scan(/#\{/) | ||
| encoder.begin_group :inline | ||
| encoder.text_token match, :inline_delimiter | ||
| states.push :sass_inline | ||
| elsif match = scan(/ \\ | $ /x) | ||
| encoder.end_group states.last | ||
| encoder.text_token match, :error unless match.empty? | ||
| states.pop | ||
| else | ||
| raise_inspect "else case #{states.last} reached; %p not handled." % peek(1), encoder | ||
| end | ||
| when :include | ||
| if match = scan(/[^\s'",]+/) | ||
| encoder.text_token match, :include | ||
| next | ||
| end | ||
| else | ||
| #:nocov: | ||
| raise_inspect 'Unknown state: %p' % [states.last], encoder | ||
| #:nocov: | ||
| end | ||
| elsif match = scan(/\$#{RE::Ident}/o) | ||
| encoder.text_token match, :variable | ||
| next | ||
| elsif match = scan(/&/) | ||
| encoder.text_token match, :local_variable | ||
| elsif match = scan(/\+#{RE::Ident}/o) | ||
| encoder.text_token match, :include | ||
| value_expected = true | ||
| elsif match = scan(/\/\*(?:.*?\*\/|.*)|\/\/.*/) | ||
| encoder.text_token match, :comment | ||
| elsif match = scan(/#\{/) | ||
| encoder.begin_group :inline | ||
| encoder.text_token match, :inline_delimiter | ||
| states.push :sass_inline | ||
| elsif match = scan(/\{/) | ||
| value_expected = false | ||
| encoder.text_token match, :operator | ||
| elsif match = scan(/\}/) | ||
| value_expected = false | ||
| encoder.text_token match, :operator | ||
| if states.last == :block || states.last == :media | ||
| states.pop | ||
| end | ||
| elsif match = scan(/['"]/) | ||
| encoder.begin_group :string | ||
| encoder.text_token match, :delimiter | ||
| if states.include? :sass_inline | ||
| # no nesting, just scan the string until delimiter | ||
| content = scan_until(/(?=#{match}|\}|\z)/) | ||
| encoder.text_token content, :content unless content.empty? | ||
| encoder.text_token match, :delimiter if scan(/#{match}/) | ||
| encoder.end_group :string | ||
| else | ||
| states.push match == "'" ? :sqstring : :dqstring | ||
| end | ||
| elsif match = scan(/#{RE::Function}/o) | ||
| encoder.begin_group :function | ||
| start = match[/^[-\w]+\(/] | ||
| encoder.text_token start, :delimiter | ||
| if match[-1] == ?) | ||
| encoder.text_token match[start.size..-2], :content | ||
| encoder.text_token ')', :delimiter | ||
| else | ||
| encoder.text_token match[start.size..-1], :content if start.size < match.size | ||
| end | ||
| encoder.end_group :function | ||
| elsif match = scan(/[a-z][-a-z_]*(?=\()/o) | ||
| encoder.text_token match, :predefined | ||
| elsif match = scan(/(?: #{RE::Dimension} | #{RE::Percentage} | #{RE::Num} )/ox) | ||
| encoder.text_token match, :float | ||
| elsif match = scan(/#{RE::HexColor}/o) | ||
| encoder.text_token match, :color | ||
| elsif match = scan(/! *(?:important|optional|default)/) | ||
| encoder.text_token match, :important | ||
| elsif match = scan(/(?:rgb|hsl)a?\([^()\n]*\)?/) | ||
| encoder.text_token match, :color | ||
| elsif match = scan(/@else if\b|#{RE::AtKeyword}/o) | ||
| encoder.text_token match, :directive | ||
| value_expected = true | ||
| elsif match = scan(/ == | != | [-+*\/>~:;,.=()] /x) | ||
| if match == ':' | ||
| value_expected = true | ||
| elsif match == ';' | ||
| value_expected = false | ||
| end | ||
| encoder.text_token match, :operator | ||
| else | ||
| encoder.text_token getch, :error | ||
| end | ||
| end | ||
| states.pop if states.last == :include | ||
| if options[:keep_state] | ||
| @state = states.dup | ||
| end | ||
| while state = states.pop | ||
| if state == :sass_inline | ||
| encoder.end_group :inline | ||
| elsif state == :sqstring || state == :dqstring | ||
| encoder.end_group :string | ||
| end | ||
| end | ||
| encoder | ||
| end | ||
| end | ||
| end | ||
| end |
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