150 lines
4.4 KiB
Ruby
150 lines
4.4 KiB
Ruby
|
module CodeRay
|
||
|
|
module Scanners
|
||
|
|
|
||
|
|
class Delphi < Scanner
|
||
|
|
|
||
|
|
register_for :delphi
|
||
|
|
|
||
|
|
RESERVED_WORDS = [
|
||
|
|
'and', 'array', 'as', 'at', 'asm', 'at', 'begin', 'case', 'class',
|
||
|
|
'const', 'constructor', 'destructor', 'dispinterface', 'div', 'do',
|
||
|
|
'downto', 'else', 'end', 'except', 'exports', 'file', 'finalization',
|
||
|
|
'finally', 'for', 'function', 'goto', 'if', 'implementation', 'in',
|
||
|
|
'inherited', 'initialization', 'inline', 'interface', 'is', 'label',
|
||
|
|
'library', 'mod', 'nil', 'not', 'object', 'of', 'or', 'out', 'packed',
|
||
|
|
'procedure', 'program', 'property', 'raise', 'record', 'repeat',
|
||
|
|
'resourcestring', 'set', 'shl', 'shr', 'string', 'then', 'threadvar',
|
||
|
|
'to', 'try', 'type', 'unit', 'until', 'uses', 'var', 'while', 'with',
|
||
|
|
'xor', 'on'
|
||
|
|
]
|
||
|
|
|
||
|
|
DIRECTIVES = [
|
||
|
|
'absolute', 'abstract', 'assembler', 'at', 'automated', 'cdecl',
|
||
|
|
'contains', 'deprecated', 'dispid', 'dynamic', 'export',
|
||
|
|
'external', 'far', 'forward', 'implements', 'local',
|
||
|
|
'near', 'nodefault', 'on', 'overload', 'override',
|
||
|
|
'package', 'pascal', 'platform', 'private', 'protected', 'public',
|
||
|
|
'published', 'read', 'readonly', 'register', 'reintroduce',
|
||
|
|
'requires', 'resident', 'safecall', 'stdcall', 'stored', 'varargs',
|
||
|
|
'virtual', 'write', 'writeonly'
|
||
|
|
]
|
||
|
|
|
||
|
|
IDENT_KIND = CaseIgnoringWordList.new(:ident, caching=true).
|
||
|
|
add(RESERVED_WORDS, :reserved).
|
||
|
|
add(DIRECTIVES, :directive)
|
||
|
|
|
||
|
|
NAME_FOLLOWS = CaseIgnoringWordList.new(false, caching=true).
|
||
|
|
add(%w(procedure function .))
|
||
|
|
|
||
|
|
private
|
||
|
|
def scan_tokens tokens, options
|
||
|
|
|
||
|
|
state = :initial
|
||
|
|
last_token = ''
|
||
|
|
|
||
|
|
until eos?
|
||
|
|
|
||
|
|
kind = nil
|
||
|
|
match = nil
|
||
|
|
|
||
|
|
if state == :initial
|
||
|
|
|
||
|
|
if scan(/ \s+ /x)
|
||
|
|
tokens << [matched, :space]
|
||
|
|
next
|
||
|
|
|
||
|
|
elsif scan(%r! \{ \$ [^}]* \}? | \(\* \$ (?: .*? \*\) | .* ) !mx)
|
||
|
|
tokens << [matched, :preprocessor]
|
||
|
|
next
|
||
|
|
|
||
|
|
elsif scan(%r! // [^\n]* | \{ [^}]* \}? | \(\* (?: .*? \*\) | .* ) !mx)
|
||
|
|
tokens << [matched, :comment]
|
||
|
|
next
|
||
|
|
|
||
|
|
elsif match = scan(/ <[>=]? | >=? | :=? | [-+=*\/;,@\^|\(\)\[\]] | \.\. /x)
|
||
|
|
kind = :operator
|
||
|
|
|
||
|
|
elsif match = scan(/\./)
|
||
|
|
kind = :operator
|
||
|
|
if last_token == 'end'
|
||
|
|
tokens << [match, kind]
|
||
|
|
next
|
||
|
|
end
|
||
|
|
|
||
|
|
elsif match = scan(/ [A-Za-z_][A-Za-z_0-9]* /x)
|
||
|
|
kind = NAME_FOLLOWS[last_token] ? :ident : IDENT_KIND[match]
|
||
|
|
|
||
|
|
elsif match = scan(/ ' ( [^\n']|'' ) (?:'|$) /x)
|
||
|
|
tokens << [:open, :char]
|
||
|
|
tokens << ["'", :delimiter]
|
||
|
|
tokens << [self[1], :content]
|
||
|
|
tokens << ["'", :delimiter]
|
||
|
|
tokens << [:close, :char]
|
||
|
|
next
|
||
|
|
|
||
|
|
elsif match = scan(/ ' /x)
|
||
|
|
tokens << [:open, :string]
|
||
|
|
state = :string
|
||
|
|
kind = :delimiter
|
||
|
|
|
||
|
|
elsif scan(/ \# (?: \d+ | \$[0-9A-Fa-f]+ ) /x)
|
||
|
|
kind = :char
|
||
|
|
|
||
|
|
elsif scan(/ \$ [0-9A-Fa-f]+ /x)
|
||
|
|
kind = :hex
|
||
|
|
|
||
|
|
elsif scan(/ (?: \d+ ) (?![eE]|\.[^.]) /x)
|
||
|
|
kind = :integer
|
||
|
|
|
||
|
|
elsif scan(/ \d+ (?: \.\d+ (?: [eE][+-]? \d+ )? | [eE][+-]? \d+ ) /x)
|
||
|
|
kind = :float
|
||
|
|
|
||
|
|
else
|
||
|
|
kind = :error
|
||
|
|
getch
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
elsif state == :string
|
||
|
|
if scan(/[^\n']+/)
|
||
|
|
kind = :content
|
||
|
|
elsif scan(/''/)
|
||
|
|
kind = :char
|
||
|
|
elsif scan(/'/)
|
||
|
|
tokens << ["'", :delimiter]
|
||
|
|
tokens << [:close, :string]
|
||
|
|
state = :initial
|
||
|
|
next
|
||
|
|
elsif scan(/\n/)
|
||
|
|
tokens << [:close, :string]
|
||
|
|
kind = :error
|
||
|
|
state = :initial
|
||
|
|
else
|
||
|
|
raise "else case \' reached; %p not handled." % peek(1), tokens
|
||
|
|
end
|
||
|
|
|
||
|
|
else
|
||
|
|
raise 'else-case reached', tokens
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
match ||= matched
|
||
|
|
if $DEBUG and not kind
|
||
|
|
raise_inspect 'Error token %p in line %d' %
|
||
|
|
[[match, kind], line], tokens, state
|
||
|
|
end
|
||
|
|
raise_inspect 'Empty token', tokens unless match
|
||
|
|
|
||
|
|
last_token = match
|
||
|
|
tokens << [match, kind]
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
tokens
|
||
|
|
end
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
end
|
||
|
|
end
|