diff options
author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
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committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
commit | 0dc342de848a642ecce8db697b8fecd83a63e117 (patch) | |
tree | 2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/ext/ripper/lib/ripper/core.rb | |
parent | ef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff) |
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/ext/ripper/lib/ripper/core.rb')
-rw-r--r-- | trunk/ext/ripper/lib/ripper/core.rb | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/trunk/ext/ripper/lib/ripper/core.rb b/trunk/ext/ripper/lib/ripper/core.rb new file mode 100644 index 0000000000..35aa54d090 --- /dev/null +++ b/trunk/ext/ripper/lib/ripper/core.rb @@ -0,0 +1,70 @@ +# +# $Id$ +# +# Copyright (c) 2003-2005 Minero Aoki +# +# This program is free software. +# You can distribute and/or modify this program under the Ruby License. +# For details of Ruby License, see ruby/COPYING. +# + +require 'ripper.so' + +class Ripper + + # Parses Ruby program read from _src_. + # _src_ must be a String or a IO or a object which has #gets method. + def Ripper.parse(src, filename = '(ripper)', lineno = 1) + new(src, filename, lineno).parse + end + + # This array contains name of parser events. + PARSER_EVENTS = PARSER_EVENT_TABLE.keys + + # This array contains name of scanner events. + SCANNER_EVENTS = SCANNER_EVENT_TABLE.keys + + # This array contains name of all ripper events. + EVENTS = PARSER_EVENTS + SCANNER_EVENTS + + private + + # + # Parser Events + # + + PARSER_EVENT_TABLE.each do |id, arity| + module_eval(<<-End, __FILE__, __LINE__ + 1) + def on_#{id}(#{ ('a'..'z').to_a[0, arity].join(', ') }) + #{arity == 0 ? 'nil' : 'a'} + end + End + end + + # This method is called when weak warning is produced by the parser. + # _fmt_ and _args_ is printf style. + def warn(fmt, *args) + end + + # This method is called when strong warning is produced by the parser. + # _fmt_ and _args_ is printf style. + def warning(fmt, *args) + end + + # This method is called when the parser found syntax error. + def compile_error(msg) + end + + # + # Scanner Events + # + + SCANNER_EVENTS.each do |id| + module_eval(<<-End, __FILE__, __LINE__ + 1) + def on_#{id}(token) + token + end + End + end + +end |