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Diffstat (limited to 'test/racc/assets/twowaysql.y')
| -rw-r--r-- | test/racc/assets/twowaysql.y | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/test/racc/assets/twowaysql.y b/test/racc/assets/twowaysql.y deleted file mode 100644 index d3bc748d3a..0000000000 --- a/test/racc/assets/twowaysql.y +++ /dev/null @@ -1,278 +0,0 @@ -# Copyright 2008-2015 Takuto Wada -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -class TwoWaySQL::Parser - -rule - -sql : stmt_list - { - result = RootNode.new( val[0] ) - } - -stmt_list : - { - result = [] - } - | stmt_list stmt - { - result.push val[1] - } - -stmt : primary - | if_stmt - | begin_stmt - -begin_stmt : BEGIN stmt_list END - { - result = BeginNode.new( val[1] ) - } - -if_stmt : IF sub_stmt else_stmt END - { - result = IfNode.new( val[0][1], val[1], val[2] ) - } - -else_stmt : ELSE sub_stmt - { - result = val[1] - } - | - { - result = nil - } - -sub_stmt : and_stmt - | or_stmt - | stmt_list - -and_stmt : AND stmt_list - { - result = SubStatementNode.new( val[0][1], val[1] ) - } - -or_stmt : OR stmt_list - { - result = SubStatementNode.new( val[0][1], val[1] ) - } - -primary : IDENT - { - result = LiteralNode.new( val[0][1] ) - } - | STRING_LITERAL - { - result = LiteralNode.new( val[0][1] ) - } - | AND - { - result = LiteralNode.new( val[0][1] ) - } - | OR - { - result = LiteralNode.new( val[0][1] ) - } - | SPACES - { - result = WhiteSpaceNode.new( val[0][1], @preserve_space ) - } - | COMMA - { - result = LiteralNode.new( val[0][1] ) - } - | LPAREN - { - result = LiteralNode.new( val[0][1] ) - } - | RPAREN - { - result = LiteralNode.new( val[0][1] ) - } - | QUESTION - { - @num_questions += 1 - result = QuestionNode.new( @num_questions ) - } - | ACTUAL_COMMENT - { - result = ActualCommentNode.new( val[0][1] , val[0][2] ) - } - | bind_var - | embed_var - -bind_var : BIND_VARIABLE STRING_LITERAL - { - result = BindVariableNode.new( val[0][1] ) - } - | BIND_VARIABLE SPACES STRING_LITERAL - { - result = BindVariableNode.new( val[0][1] ) - } - | BIND_VARIABLE IDENT - { - result = BindVariableNode.new( val[0][1] ) - } - | BIND_VARIABLE SPACES IDENT - { - result = BindVariableNode.new( val[0][1] ) - } - | PAREN_BIND_VARIABLE - { - result = ParenBindVariableNode.new( val[0][1] ) - } - -embed_var : EMBED_VARIABLE IDENT - { - result = EmbedVariableNode.new( val[0][1] ) - } - | EMBED_VARIABLE SPACES IDENT - { - result = EmbedVariableNode.new( val[0][1] ) - } - -end - - ----- inner - -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 |