# # DO NOT MODIFY!!!! # This file is automatically generated by Racc 1.4.16 # from Racc grammar file "". # require 'racc/parser.rb' module TwoWaySQL class Parser < Racc::Parser module_eval(<<'...end twowaysql.y/module_eval...', 'twowaysql.y', 148) require 'strscan' def initialize(opts={}) opts = { :debug => false, :preserve_space => true, :preserve_comment => false }.merge(opts) @yydebug = opts[:debug] @preserve_space = opts[:preserve_space] @preserve_comment = opts[:preserve_comment] @num_questions = 0 end PAREN_EXAMPLE = '\([^\)]+\)' BEGIN_BIND_VARIABLE = '(\/|\#)\*([^\*]+)\*\1' BIND_VARIABLE_PATTERN = /\A#{BEGIN_BIND_VARIABLE}\s*/ PAREN_BIND_VARIABLE_PATTERN = /\A#{BEGIN_BIND_VARIABLE}\s*#{PAREN_EXAMPLE}/ EMBED_VARIABLE_PATTERN = /\A(\/|\#)\*\$([^\*]+)\*\1\s*/ CONDITIONAL_PATTERN = /\A(\/|\#)\*(IF)\s+([^\*]+)\s*\*\1/ BEGIN_END_PATTERN = /\A(\/|\#)\*(BEGIN|END)\s*\*\1/ STRING_LITERAL_PATTERN = /\A(\'(?:[^\']+|\'\')*\')/ ## quoted string SPLIT_TOKEN_PATTERN = /\A(\S+?)(?=\s*(?:(?:\/|\#)\*|-{2,}|\(|\)|\,))/ ## stop on delimiters --,/*,#*,',',(,) LITERAL_PATTERN = /\A([^;\s]+)/ SPACES_PATTERN = /\A(\s+)/ QUESTION_PATTERN = /\A\?/ COMMA_PATTERN = /\A\,/ LPAREN_PATTERN = /\A\(/ RPAREN_PATTERN = /\A\)/ ACTUAL_COMMENT_PATTERN = /\A(\/|\#)\*(\s{1,}(?:.*?))\*\1/m ## start with spaces SEMICOLON_AT_INPUT_END_PATTERN = /\A\;\s*\Z/ UNMATCHED_COMMENT_START_PATTERN = /\A(?:(?:\/|\#)\*)/ #TODO: remove trailing spaces for S2Dao compatibility, but this spec sometimes causes SQL bugs... ELSE_PATTERN = /\A\-{2,}\s*ELSE\s*/ AND_PATTERN = /\A(\ *AND)\b/i OR_PATTERN = /\A(\ *OR)\b/i def parse( io ) @q = [] io.each_line(nil) do |whole| @s = StringScanner.new(whole) end scan_str # @q.push [ false, nil ] @q.push [ false, [@s.pos, nil] ] ## call racc's private parse method do_parse end ## called by racc def next_token @q.shift end def scan_str until @s.eos? do case when @s.scan(AND_PATTERN) @q.push [ :AND, [@s.pos, @s[1]] ] when @s.scan(OR_PATTERN) @q.push [ :OR, [@s.pos, @s[1]] ] when @s.scan(SPACES_PATTERN) @q.push [ :SPACES, [@s.pos, @s[1]] ] when @s.scan(QUESTION_PATTERN) @q.push [ :QUESTION, [@s.pos, nil] ] when @s.scan(COMMA_PATTERN) @q.push [ :COMMA, [@s.pos, ','] ] when @s.scan(LPAREN_PATTERN) @q.push [ :LPAREN, [@s.pos, '('] ] when @s.scan(RPAREN_PATTERN) @q.push [ :RPAREN, [@s.pos, ')'] ] when @s.scan(ELSE_PATTERN) @q.push [ :ELSE, [@s.pos, nil] ] when @s.scan(ACTUAL_COMMENT_PATTERN) @q.push [ :ACTUAL_COMMENT, [@s.pos, @s[1], @s[2]] ] if @preserve_comment when @s.scan(BEGIN_END_PATTERN) @q.push [ @s[2].intern, [@s.pos, nil] ] when @s.scan(CONDITIONAL_PATTERN) @q.push [ @s[2].intern, [@s.pos, @s[3]] ] when @s.scan(EMBED_VARIABLE_PATTERN) @q.push [ :EMBED_VARIABLE, [@s.pos, @s[2]] ] when @s.scan(PAREN_BIND_VARIABLE_PATTERN) @q.push [ :PAREN_BIND_VARIABLE, [@s.pos, @s[2]] ] when @s.scan(BIND_VARIABLE_PATTERN) @q.push [ :BIND_VARIABLE, [@s.pos, @s[2]] ] when @s.scan(STRING_LITERAL_PATTERN) @q.push [ :STRING_LITERAL, [@s.pos, @s[1]] ] when @s.scan(SPLIT_TOKEN_PATTERN) @q.push [ :IDENT, [@s.pos, @s[1]] ] when @s.scan(UNMATCHED_COMMENT_START_PATTERN) ## unmatched comment start, '/*','#*' raise Racc::ParseError, "unmatched comment. line:[#{line_no(@s.pos)}], str:[#{@s.rest}]" when @s.scan(LITERAL_PATTERN) ## other string token @q.push [ :IDENT, [@s.pos, @s[1]] ] when @s.scan(SEMICOLON_AT_INPUT_END_PATTERN) #drop semicolon at input end else raise Racc::ParseError, "syntax error at or near line:[#{line_no(@s.pos)}], str:[#{@s.rest}]" end end end ## override racc's default on_error method def on_error(t, v, vstack) ## cursor in value-stack is an array of two items, ## that have position value as 0th item. like [731, "ctx[:limit] "] cursor = vstack.find do |tokens| tokens.size == 2 and tokens[0].kind_of?(Fixnum) end pos = cursor[0] line = line_no(pos) rest = @s.string[pos .. -1] raise Racc::ParseError, "syntax error at or near line:[#{line}], str:[#{rest}]" end def line_no(pos) lines = 0 scanned = @s.string[0..(pos)] scanned.each_line { lines += 1 } lines end ...end twowaysql.y/module_eval... ##### State transition tables begin ### racc_action_table = [ 8, 36, 9, 37, 12, 13, 10, 11, 14, 15, 16, 17, 18, 19, 22, 23, 24, 8, 3, 9, 25, 12, 13, 10, 11, 14, 15, 16, 17, 18, 19, 22, 23, 24, 8, 38, 9, 46, 12, 13, 10, 11, 14, 15, 16, 17, 18, 19, 22, 23, 24, 8, 40, 9, 45, 12, 13, 10, 11, 14, 15, 16, 17, 18, 19, 22, 23, 24, 8, nil, 9, nil, 12, 13, 10, 11, 14, 15, 16, 17, 18, 19, 22, 23, 24, 35, 33, 34, 44, 43, 31, 32, 31, 32 ] racc_action_check = [ 42, 24, 42, 24, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 2, 1, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 26, 26, 26, 39, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 28, 27, 37, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 41, nil, 41, nil, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 22, 22, 22, 34, 34, 9, 9, 40, 40 ] racc_action_pointer = [ nil, 18, 15, 20, nil, nil, nil, nil, nil, 84, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 77, nil, -7, nil, 32, 49, 47, nil, nil, nil, nil, nil, 80, nil, nil, 46, nil, 34, 86, 66, -2, nil, nil, nil, nil, nil ] racc_action_default = [ -2, -35, -1, -35, -3, -4, -5, -6, -2, -2, -16, -17, -18, -19, -20, -21, -22, -23, -24, -25, -26, -27, -35, -32, -35, 48, -35, -13, -10, -11, -12, -2, -2, -28, -35, -30, -33, -35, -7, -35, -2, -14, -15, -29, -31, -34, -8, -9 ] racc_goto_table = [ 2, 1, 28, 39, nil, nil, nil, nil, 26, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 41, 42, 47 ] racc_goto_check = [ 2, 1, 7, 8, nil, nil, nil, nil, 2, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, 2, 2, 7 ] racc_goto_pointer = [ nil, 1, 0, nil, nil, nil, nil, -7, -25, nil, nil, nil, nil ] racc_goto_default = [ nil, nil, 27, 4, 5, 6, 7, nil, nil, 29, 30, 20, 21 ] racc_reduce_table = [ 0, 0, :racc_error, 1, 20, :_reduce_1, 0, 21, :_reduce_2, 2, 21, :_reduce_3, 1, 22, :_reduce_none, 1, 22, :_reduce_none, 1, 22, :_reduce_none, 3, 25, :_reduce_7, 4, 24, :_reduce_8, 2, 27, :_reduce_9, 0, 27, :_reduce_10, 1, 26, :_reduce_none, 1, 26, :_reduce_none, 1, 26, :_reduce_none, 2, 28, :_reduce_14, 2, 29, :_reduce_15, 1, 23, :_reduce_16, 1, 23, :_reduce_17, 1, 23, :_reduce_18, 1, 23, :_reduce_19, 1, 23, :_reduce_20, 1, 23, :_reduce_21, 1, 23, :_reduce_22, 1, 23, :_reduce_23, 1, 23, :_reduce_24, 1, 23, :_reduce_25, 1, 23, :_reduce_none, 1, 23, :_reduce_none, 2, 30, :_reduce_28, 3, 30, :_reduce_29, 2, 30, :_reduce_30, 3, 30, :_reduce_31, 1, 30, :_reduce_32, 2, 31, :_reduce_33, 3, 31, :_reduce_34 ] racc_reduce_n = 35 racc_shift_n = 48 racc_token_table = { false => 0, :error => 1, :BEGIN => 2, :END => 3, :IF => 4, :ELSE => 5, :AND => 6, :OR => 7, :IDENT => 8, :STRING_LITERAL => 9, :SPACES => 10, :COMMA => 11, :LPAREN => 12, :RPAREN => 13, :QUESTION => 14, :ACTUAL_COMMENT => 15, :BIND_VARIABLE => 16, :PAREN_BIND_VARIABLE => 17, :EMBED_VARIABLE => 18 } racc_nt_base = 19 racc_use_result_var = true Racc_arg = [ racc_action_table, racc_action_check, racc_action_default, racc_action_pointer, racc_goto_table, racc_goto_check, racc_goto_default, racc_goto_pointer, racc_nt_base, racc_reduce_table, racc_token_table, racc_shift_n, racc_reduce_n, racc_use_result_var ] Racc_token_to_s_table = [ "$end", "error", "BEGIN", "END", "IF", "ELSE", "AND", "OR", "IDENT", "STRING_LITERAL", "SPACES", "COMMA", "LPAREN", "RPAREN", "QUESTION", "ACTUAL_COMMENT", "BIND_VARIABLE", "PAREN_BIND_VARIABLE", "EMBED_VARIABLE", "$start", "sql", "stmt_list", "stmt", "primary", "if_stmt", "begin_stmt", "sub_stmt", "else_stmt", "and_stmt", "or_stmt", "bind_var", "embed_var" ] Racc_debug_parser = false ##### State transition tables end ##### # reduce 0 omitted module_eval(<<'.,.,', 'twowaysql.y', 20) def _reduce_1(val, _values, result) result = RootNode.new( val[0] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 25) def _reduce_2(val, _values, result) result = [] result end .,., module_eval(<<'.,.,', 'twowaysql.y', 29) def _reduce_3(val, _values, result) result.push val[1] result end .,., # reduce 4 omitted # reduce 5 omitted # reduce 6 omitted module_eval(<<'.,.,', 'twowaysql.y', 38) def _reduce_7(val, _values, result) result = BeginNode.new( val[1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 43) def _reduce_8(val, _values, result) result = IfNode.new( val[0][1], val[1], val[2] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 48) def _reduce_9(val, _values, result) result = val[1] result end .,., module_eval(<<'.,.,', 'twowaysql.y', 52) def _reduce_10(val, _values, result) result = nil result end .,., # reduce 11 omitted # reduce 12 omitted # reduce 13 omitted module_eval(<<'.,.,', 'twowaysql.y', 61) def _reduce_14(val, _values, result) result = SubStatementNode.new( val[0][1], val[1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 66) def _reduce_15(val, _values, result) result = SubStatementNode.new( val[0][1], val[1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 71) def _reduce_16(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 75) def _reduce_17(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 79) def _reduce_18(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 83) def _reduce_19(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 87) def _reduce_20(val, _values, result) result = WhiteSpaceNode.new( val[0][1], @preserve_space ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 91) def _reduce_21(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 95) def _reduce_22(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 99) def _reduce_23(val, _values, result) result = LiteralNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 103) def _reduce_24(val, _values, result) @num_questions += 1 result = QuestionNode.new( @num_questions ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 108) def _reduce_25(val, _values, result) result = ActualCommentNode.new( val[0][1] , val[0][2] ) result end .,., # reduce 26 omitted # reduce 27 omitted module_eval(<<'.,.,', 'twowaysql.y', 115) def _reduce_28(val, _values, result) result = BindVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 119) def _reduce_29(val, _values, result) result = BindVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 123) def _reduce_30(val, _values, result) result = BindVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 127) def _reduce_31(val, _values, result) result = BindVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 131) def _reduce_32(val, _values, result) result = ParenBindVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 136) def _reduce_33(val, _values, result) result = EmbedVariableNode.new( val[0][1] ) result end .,., module_eval(<<'.,.,', 'twowaysql.y', 140) def _reduce_34(val, _values, result) result = EmbedVariableNode.new( val[0][1] ) result end .,., def _reduce_none(val, _values, result) val[0] end end # class Parser end # module TwoWaySQL