comparison vendor/gems/coderay-1.0.0/lib/coderay/scanners/groovy.rb @ 909:cbb26bc654de redmine-1.3

Update to Redmine 1.3-stable branch (Redmine SVN rev 8964)

+module CodeRay
+module Scanners
+  
+  load :java
+  
+  # Scanner for Groovy.
+  class Groovy < Java
+    
+    register_for :groovy
+    
+    # TODO: check list of keywords
+    GROOVY_KEYWORDS = %w[
+      as assert def in
+    ]  # :nodoc:
+    KEYWORDS_EXPECTING_VALUE = WordList.new.add %w[
+      case instanceof new return throw typeof while as assert in
+    ]  # :nodoc:
+    GROOVY_MAGIC_VARIABLES = %w[ it ]  # :nodoc:
+    
+    IDENT_KIND = Java::IDENT_KIND.dup.
+      add(GROOVY_KEYWORDS, :keyword).
+      add(GROOVY_MAGIC_VARIABLES, :local_variable)  # :nodoc:
+    
+    ESCAPE = / [bfnrtv$\n\\'"] | x[a-fA-F0-9]{1,2} | [0-7]{1,3} /x  # :nodoc:
+    UNICODE_ESCAPE =  / u[a-fA-F0-9]{4} /x  # :nodoc: no 4-byte unicode chars? U[a-fA-F0-9]{8}
+    REGEXP_ESCAPE =  / [bfnrtv\n\\'"] | x[a-fA-F0-9]{1,2} | [0-7]{1,3} | \d | [bBdDsSwW\/] /x  # :nodoc:
+    
+    # TODO: interpretation inside ', ", /
+    STRING_CONTENT_PATTERN = {
+      "'" => /(?>\\[^\\'\n]+|[^\\'\n]+)+/,
+      '"' => /[^\\$"\n]+/,
+      "'''" => /(?>[^\\']+|'(?!''))+/,
+      '"""' => /(?>[^\\$"]+|"(?!""))+/,
+      '/' => /[^\\$\/\n]+/,
+    }  # :nodoc:
+    
+  protected
+    
+    def scan_tokens encoder, options
+      
+      state = :initial
+      inline_block_stack = []
+      inline_block_paren_depth = nil
+      string_delimiter = nil
+      import_clause = class_name_follows = last_token = after_def = false
+      value_expected = true
+      
+      until eos?
+        
+        case state
+        
+        when :initial
+          
+          if match = scan(/ \s+ | \\\n /x)
+            encoder.text_token match, :space
+            if match.index ?\n
+              import_clause = after_def = false
+              value_expected = true unless value_expected
+            end
+            next
+          
+          elsif match = scan(%r! // [^\n\\]* (?: \\. [^\n\\]* )* | /\* (?: .*? \*/ | .* ) !mx)
+            value_expected = true
+            after_def = false
+            encoder.text_token match, :comment
+          
+          elsif bol? && match = scan(/ \#!.* /x)
+            encoder.text_token match, :doctype
+          
+          elsif import_clause && match = scan(/ (?!as) #{IDENT} (?: \. #{IDENT} )* (?: \.\* )? /ox)
+            after_def = value_expected = false
+            encoder.text_token match, :include
+          
+          elsif match = scan(/ #{IDENT} | \[\] /ox)
+            kind = IDENT_KIND[match]
+            value_expected = (kind == :keyword) && KEYWORDS_EXPECTING_VALUE[match]
+            if last_token == '.'
+              kind = :ident
+            elsif class_name_follows
+              kind = :class
+              class_name_follows = false
+            elsif after_def && check(/\s*[({]/)
+              kind = :method
+              after_def = false
+            elsif kind == :ident && last_token != '?' && check(/:/)
+              kind = :key
+            else
+              class_name_follows = true if match == 'class' || (import_clause && match == 'as')
+              import_clause = match == 'import'
+              after_def = true if match == 'def'
+            end
+            encoder.text_token match, kind
+          
+          elsif match = scan(/;/)
+            import_clause = after_def = false
+            value_expected = true
+            encoder.text_token match, :operator
+          
+          elsif match = scan(/\{/)
+            class_name_follows = after_def = false
+            value_expected = true
+            encoder.text_token match, :operator
+            if !inline_block_stack.empty?
+              inline_block_paren_depth += 1
+            end
+          
+          # TODO: ~'...', ~"..." and ~/.../ style regexps
+          elsif match = scan(/ \.\.<? | \*?\.(?!\d)@? | \.& | \?:? | [,?:(\[] | -[->] | \+\+ |
+              && | \|\| | \*\*=? | ==?~ | <=?>? | [-+*%^~&|>=!]=? | <<<?=? | >>>?=? /x)
+            value_expected = true
+            value_expected = :regexp if match == '~'
+            after_def = false
+            encoder.text_token match, :operator
+          
+          elsif match = scan(/ [)\]}] /x)
+            value_expected = after_def = false
+            if !inline_block_stack.empty? && match == '}'
+              inline_block_paren_depth -= 1
+              if inline_block_paren_depth == 0  # closing brace of inline block reached
+                encoder.text_token match, :inline_delimiter
+                encoder.end_group :inline
+                state, string_delimiter, inline_block_paren_depth = inline_block_stack.pop
+                next
+              end
+            end
+            encoder.text_token match, :operator
+          
+          elsif check(/[\d.]/)
+            after_def = value_expected = false
+            if match = scan(/0[xX][0-9A-Fa-f]+/)
+              encoder.text_token match, :hex
+            elsif match = scan(/(?>0[0-7]+)(?![89.eEfF])/)
+              encoder.text_token match, :octal
+            elsif match = scan(/\d+[fFdD]|\d*\.\d+(?:[eE][+-]?\d+)?[fFdD]?|\d+[eE][+-]?\d+[fFdD]?/)
+              encoder.text_token match, :float
+            elsif match = scan(/\d+[lLgG]?/)
+              encoder.text_token match, :integer
+            end
+            
+          elsif match = scan(/'''|"""/)
+            after_def = value_expected = false
+            state = :multiline_string
+            encoder.begin_group :string
+            string_delimiter = match
+            encoder.text_token match, :delimiter
+            
+          # TODO: record.'name' syntax
+          elsif match = scan(/["']/)
+            after_def = value_expected = false
+            state = match == '/' ? :regexp : :string
+            encoder.begin_group state
+            string_delimiter = match
+            encoder.text_token match, :delimiter
+            
+          elsif value_expected && match = scan(/\//)
+            after_def = value_expected = false
+            encoder.begin_group :regexp
+            state = :regexp
+            string_delimiter = '/'
+            encoder.text_token match, :delimiter
+            
+          elsif match = scan(/ @ #{IDENT} /ox)
+            after_def = value_expected = false
+            encoder.text_token match, :annotation
+            
+          elsif match = scan(/\//)
+            after_def = false
+            value_expected = true
+            encoder.text_token match, :operator
+            
+          else
+            encoder.text_token getch, :error
+            
+          end
+          
+        when :string, :regexp, :multiline_string
+          if match = scan(STRING_CONTENT_PATTERN[string_delimiter])
+            encoder.text_token match, :content
+            
+          elsif match = scan(state == :multiline_string ? /'''|"""/ : /["'\/]/)
+            encoder.text_token match, :delimiter
+            if state == :regexp
+              # TODO: regexp modifiers? s, m, x, i?
+              modifiers = scan(/[ix]+/)
+              encoder.text_token modifiers, :modifier if modifiers && !modifiers.empty?
+            end
+            state = :string if state == :multiline_string
+            encoder.end_group state
+            string_delimiter = nil
+            after_def = value_expected = false
+            state = :initial
+            next
+            
+          elsif (state == :string || state == :multiline_string) &&
+              (match = scan(/ \\ (?: #{ESCAPE} | #{UNICODE_ESCAPE} ) /mox))
+            if string_delimiter[0] == ?' && !(match == "\\\\" || match == "\\'")
+              encoder.text_token match, :content
+            else
+              encoder.text_token match, :char
+            end
+          elsif state == :regexp && match = scan(/ \\ (?: #{REGEXP_ESCAPE} | #{UNICODE_ESCAPE} ) /mox)
+            encoder.text_token match, :char
+            
+          elsif match = scan(/ \$ #{IDENT} /mox)
+            encoder.begin_group :inline
+            encoder.text_token '$', :inline_delimiter
+            match = match[1..-1]
+            encoder.text_token match, IDENT_KIND[match]
+            encoder.end_group :inline
+            next
+          elsif match = scan(/ \$ \{ /x)
+            encoder.begin_group :inline
+            encoder.text_token match, :inline_delimiter
+            inline_block_stack << [state, string_delimiter, inline_block_paren_depth]
+            inline_block_paren_depth = 1
+            state = :initial
+            next
+            
+          elsif match = scan(/ \$ /mx)
+            encoder.text_token match, :content
+            
+          elsif match = scan(/ \\. /mx)
+            encoder.text_token match, :content  # TODO: Shouldn't this be :error?
+            
+          elsif match = scan(/ \\ | \n /x)
+            encoder.end_group state
+            encoder.text_token match, :error
+            after_def = value_expected = false
+            state = :initial
+            
+          else
+            raise_inspect "else case \" reached; %p not handled." % peek(1), encoder
+            
+          end
+          
+        else
+          raise_inspect 'Unknown state', encoder
+          
+        end
+        
+        last_token = match unless [:space, :comment, :doctype].include? kind
+        
+      end
+      
+      if [:multiline_string, :string, :regexp].include? state
+        encoder.end_group state
+      end
+      
+      encoder
+    end
+    
+  end
+  
+end
+end