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ruby--ruby/lib/date/delta/parser.rb
tadf b828fb85dd * lib/date/delta/parser.{ry,rb}: fixed a bug of token scanner.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-11-22 22:59:48 +00:00

302 lines
6.1 KiB
Ruby

#
# DO NOT MODIFY!!!!
# This file is automatically generated by racc 1.4.5
# from racc grammer file "parser.ry".
#
require 'racc/parser'
class Date
class Delta
class Parser < Racc::Parser
module_eval <<'..end parser.ry modeval..idf2987de166', 'parser.ry', 42
def lookup(str)
t = str.downcase
k = UNITS4KEY[t]
return [:UNIT, k] if k
return [:AND, nil] if t == 'and'
return [:UNKNOWNWORD, nil]
end
def parse(str)
@q = []
until str.empty?
case str
when /\A\s+/
when /\Ap\d+[ymdhsw]/i
/\Ap(\d+y)?(\d+m)?(\d+d)?t?(\d+h)?(\d+m)?(\d+s)?(\d+w)?/i =~ str
y, m, d, h, min, s, w =
[$1, $2, $3, $4, $5, $6, $7].collect{|x| x.to_i}
y *= UNITS4KEY['years']
m *= UNITS4KEY['months']
d *= UNITS4KEY['days']
h *= UNITS4KEY['hours']
min *= UNITS4KEY['minutes']
s *= UNITS4KEY['seconds']
w *= UNITS4KEY['weeks']
@q.push [:DURATION, y + m + d + h + min + s + w]
when /\A\d+/
@q.push [:DIGITS, $&.to_i]
when /\A[a-z]+/i
@q.push lookup($&)
when /\A.|\n/
@q.push [$&, $&]
end
str = $'
end
@q.push [false, false]
do_parse
end
def next_token
@q.shift
end
..end parser.ry modeval..idf2987de166
##### racc 1.4.5 generates ###
racc_reduce_table = [
0, 0, :racc_error,
1, 16, :_reduce_none,
1, 17, :_reduce_none,
1, 17, :_reduce_none,
3, 17, :_reduce_4,
3, 17, :_reduce_5,
3, 17, :_reduce_6,
3, 17, :_reduce_7,
3, 17, :_reduce_8,
3, 17, :_reduce_9,
3, 17, :_reduce_10,
2, 17, :_reduce_11,
2, 17, :_reduce_12,
3, 17, :_reduce_13,
2, 18, :_reduce_14,
0, 20, :_reduce_15,
1, 20, :_reduce_none,
1, 19, :_reduce_none ]
racc_reduce_n = 18
racc_shift_n = 32
racc_action_table = [
13, 14, 15, 16, 17, 18, 19, 4, 27, 23,
8, 9, 1, 4, 25, 2, 8, 9, 1, 4,
24, 2, 8, 9, 1, 4, 21, 2, 8, 9,
1, 4, 11, 2, 8, 9, 1, 4, 26, 2,
8, 9, 1, 4, nil, 2, 8, 9, 1, 4,
nil, 2, 8, 9, 1, nil, nil, 2, 13, 14,
15, 16, 17, 18, 19, 13, 14, 15, 13, 14,
15, 13, 14, 15, 13, 14, 15 ]
racc_action_check = [
10, 10, 10, 10, 10, 10, 10, 17, 15, 10,
17, 17, 17, 18, 13, 17, 18, 18, 18, 4,
11, 18, 4, 4, 4, 1, 9, 4, 1, 1,
1, 8, 3, 1, 8, 8, 8, 19, 14, 8,
19, 19, 19, 0, nil, 19, 0, 0, 0, 16,
nil, 0, 16, 16, 16, nil, nil, 16, 5, 5,
5, 5, 5, 5, 5, 30, 30, 30, 28, 28,
28, 29, 29, 29, 31, 31, 31 ]
racc_action_pointer = [
37, 19, nil, 32, 13, 55, nil, nil, 25, 13,
-3, 20, nil, 4, 28, -2, 43, 1, 7, 31,
nil, nil, nil, nil, nil, nil, nil, nil, 65, 68,
62, 71 ]
racc_action_default = [
-18, -18, -17, -18, -18, -1, -2, -3, -18, -15,
-18, -18, -12, -18, -18, -18, -18, -18, -18, -18,
-11, -16, -14, -13, 32, -10, -8, -9, -4, -5,
-6, -7 ]
racc_goto_table = [
5, 10, 3, 22, 12, nil, nil, nil, 20, nil,
nil, nil, nil, nil, nil, nil, 28, 29, 30, 31 ]
racc_goto_check = [
2, 2, 1, 5, 2, nil, nil, nil, 2, nil,
nil, nil, nil, nil, nil, nil, 2, 2, 2, 2 ]
racc_goto_pointer = [
nil, 2, 0, nil, nil, -6 ]
racc_goto_default = [
nil, nil, nil, 6, 7, nil ]
racc_token_table = {
false => 0,
Object.new => 1,
:UNARY => 2,
"^" => 3,
"*" => 4,
"/" => 5,
"+" => 6,
"," => 7,
:AND => 8,
"-" => 9,
:DIGITS => 10,
"(" => 11,
")" => 12,
:UNIT => 13,
:DURATION => 14 }
racc_use_result_var = true
racc_nt_base = 15
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',
'UNARY',
'"^"',
'"*"',
'"/"',
'"+"',
'","',
'AND',
'"-"',
'DIGITS',
'"("',
'")"',
'UNIT',
'DURATION',
'$start',
'stmt',
'expr',
'time',
'iso',
'unit']
Racc_debug_parser = false
##### racc system variables end #####
# reduce 0 omitted
# reduce 1 omitted
# reduce 2 omitted
# reduce 3 omitted
module_eval <<'.,.,', 'parser.ry', 18
def _reduce_4( val, _values, result )
result += val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 19
def _reduce_5( val, _values, result )
result += val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 20
def _reduce_6( val, _values, result )
result += val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 21
def _reduce_7( val, _values, result )
result -= val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 22
def _reduce_8( val, _values, result )
result *= val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 23
def _reduce_9( val, _values, result )
result /= val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 24
def _reduce_10( val, _values, result )
result **= val[2]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 25
def _reduce_11( val, _values, result )
result = -val[1]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 26
def _reduce_12( val, _values, result )
result = +val[1]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 27
def _reduce_13( val, _values, result )
result = val[1]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 30
def _reduce_14( val, _values, result )
result = val[0] * val[1]
result
end
.,.,
module_eval <<'.,.,', 'parser.ry', 33
def _reduce_15( val, _values, result )
result = 1
result
end
.,.,
# reduce 16 omitted
# reduce 17 omitted
def _reduce_none( val, _values, result )
result
end
end # class Parser
end # class Delta
end # class Date