diff options
Diffstat (limited to 'vendor/plugins/coderay-0.7.6.227/lib/coderay/scanners/javascript.rb')
| -rw-r--r-- | vendor/plugins/coderay-0.7.6.227/lib/coderay/scanners/javascript.rb | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/vendor/plugins/coderay-0.7.6.227/lib/coderay/scanners/javascript.rb b/vendor/plugins/coderay-0.7.6.227/lib/coderay/scanners/javascript.rb new file mode 100644 index 000000000..419a5255b --- /dev/null +++ b/vendor/plugins/coderay-0.7.6.227/lib/coderay/scanners/javascript.rb @@ -0,0 +1,176 @@ +# http://pastie.textmate.org/50774/
+module CodeRay module Scanners
+
+ class JavaScript < Scanner
+
+ register_for :javascript
+
+ RESERVED_WORDS = [
+ 'asm', 'break', 'case', 'continue', 'default', 'do', 'else',
+ 'for', 'goto', 'if', 'return', 'switch', 'while',
+# 'struct', 'union', 'enum', 'typedef',
+# 'static', 'register', 'auto', 'extern',
+# 'sizeof',
+ 'typeof',
+# 'volatile', 'const', # C89
+# 'inline', 'restrict', # C99
+ 'var', 'function','try','new','in',
+ 'instanceof','throw','catch'
+ ]
+
+ PREDEFINED_CONSTANTS = [
+ 'void', 'null', 'this',
+ 'true', 'false','undefined',
+ ]
+
+ IDENT_KIND = WordList.new(:ident).
+ add(RESERVED_WORDS, :reserved).
+ add(PREDEFINED_CONSTANTS, :pre_constant)
+
+ ESCAPE = / [rbfnrtv\n\\\/'"] | x[a-fA-F0-9]{1,2} | [0-7]{1,3} /x
+ UNICODE_ESCAPE = / u[a-fA-F0-9]{4} | U[a-fA-F0-9]{8} /x
+
+ def scan_tokens tokens, options
+
+ state = :initial
+ string_type = nil
+ regexp_allowed = true
+
+ until eos?
+
+ kind = :error
+ match = nil
+
+ if state == :initial
+
+ if scan(/ \s+ | \\\n /x)
+ kind = :space
+
+ elsif scan(%r! // [^\n\\]* (?: \\. [^\n\\]* )* | /\* (?: .*? \*/ | .* ) !mx)
+ kind = :comment
+ regexp_allowed = false
+
+ elsif match = scan(/ \# \s* if \s* 0 /x)
+ match << scan_until(/ ^\# (?:elif|else|endif) .*? $ | \z /xm) unless eos?
+ kind = :comment
+ regexp_allowed = false
+
+ elsif regexp_allowed and scan(/\//)
+ tokens << [:open, :regexp]
+ state = :regex
+ kind = :delimiter
+
+ elsif scan(/ [-+*\/=<>?:;,!&^|()\[\]{}~%] | \.(?!\d) /x)
+ kind = :operator
+ regexp_allowed=true
+
+ elsif match = scan(/ [$A-Za-z_][A-Za-z_0-9]* /x)
+ kind = IDENT_KIND[match]
+# if kind == :ident and check(/:(?!:)/)
+# match << scan(/:/)
+# kind = :label
+# end
+ regexp_allowed=false
+
+ elsif match = scan(/["']/)
+ tokens << [:open, :string]
+ string_type = matched
+ state = :string
+ kind = :delimiter
+
+# elsif scan(/#\s*(\w*)/)
+# kind = :preprocessor # FIXME multiline preprocs
+# state = :include_expected if self[1] == 'include'
+#
+# elsif scan(/ L?' (?: [^\'\n\\] | \\ #{ESCAPE} )? '? /ox)
+# kind = :char
+
+ elsif scan(/0[xX][0-9A-Fa-f]+/)
+ kind = :hex
+ regexp_allowed=false
+
+ elsif scan(/(?:0[0-7]+)(?![89.eEfF])/)
+ kind = :oct
+ regexp_allowed=false
+
+ elsif scan(/(?:\d+)(?![.eEfF])/)
+ kind = :integer
+ regexp_allowed=false
+
+ elsif scan(/\d[fF]?|\d*\.\d+(?:[eE][+-]?\d+)?[fF]?|\d+[eE][+-]?\d+[fF]?/)
+ kind = :float
+ regexp_allowed=false
+
+ else
+ getch
+ end
+
+ elsif state == :regex
+ if scan(/[^\\\/]+/)
+ kind = :content
+ elsif scan(/\\\/|\\\\/)
+ kind = :content
+ elsif scan(/\//)
+ tokens << [matched, :delimiter]
+ tokens << [:close, :regexp]
+ state = :initial
+ next
+ else
+ getch
+ kind = :content
+ end
+
+ elsif state == :string
+ if scan(/[^\\"']+/)
+ kind = :content
+ elsif scan(/["']/)
+ if string_type==matched
+ tokens << [matched, :delimiter]
+ tokens << [:close, :string]
+ state = :initial
+ string_type=nil
+ next
+ else
+ kind = :content
+ end
+ elsif scan(/ \\ (?: #{ESCAPE} | #{UNICODE_ESCAPE} ) /mox)
+ kind = :char
+ elsif scan(/ \\ | $ /x)
+ kind = :error
+ state = :initial
+ else
+ raise "else case \" reached; %p not handled." % peek(1), tokens
+ end
+
+# elsif state == :include_expected
+# if scan(/<[^>\n]+>?|"[^"\n\\]*(?:\\.[^"\n\\]*)*"?/)
+# kind = :include
+# state = :initial
+#
+# elsif match = scan(/\s+/)
+# kind = :space
+# state = :initial if match.index ?\n
+#
+# else
+# getch
+#
+# end
+#
+ else
+ raise 'else-case reached', tokens
+
+ end
+
+ match ||= matched
+# raise [match, kind], tokens if kind == :error
+
+ tokens << [match, kind]
+
+ end
+ tokens
+
+ end
+
+ end
+
+end end
\ No newline at end of file |