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author | yui-knk <spiketeika@gmail.com> | 2023-11-18 17:46:38 +0900 |
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committer | Yuichiro Kaneko <spiketeika@gmail.com> | 2023-11-18 19:38:55 +0900 |
commit | c56dd94db0001b900a2dab3ee350a182d6bb42af (patch) | |
tree | 7a4f5236452ae721f67fe6602f3dcbc68a085ac1 /tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb | |
parent | f479e629ab497f325091096819fa5bf60c0d03b2 (diff) | |
download | ruby-c56dd94db0001b900a2dab3ee350a182d6bb42af.tar.gz |
Lrama v0.5.10
Diffstat (limited to 'tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb')
-rw-r--r-- | tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb b/tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb new file mode 100644 index 0000000000..64662180a0 --- /dev/null +++ b/tool/lrama/lib/lrama/grammar/parameterizing_rules/builder/separated_nonempty_list.rb @@ -0,0 +1,27 @@ +module Lrama + class Grammar + class ParameterizingRules + class Builder + class SeparatedNonemptyList < Base + def initialize(token, rule_counter, lhs, user_code, precedence_sym, line) + super + @separator = @args[0] + @token = @args[1] + @expected_argument_num = 2 + end + + def build + validate_argument_number! + + rules = [] + separated_list_token = Lrama::Lexer::Token::Ident.new(s_value: "separated_nonempty_list_#{@token.s_value}") + rules << Rule.new(id: @rule_counter.increment, _lhs: @lhs, _rhs: [separated_list_token], token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line) + rules << Rule.new(id: @rule_counter.increment, _lhs: separated_list_token, _rhs: [@token], token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line) + rules << Rule.new(id: @rule_counter.increment, _lhs: separated_list_token, _rhs: [separated_list_token, @separator, @token], token_code: @user_code, precedence_sym: @precedence_sym, lineno: @line) + rules + end + end + end + end + end +end |