Module: EBNF::Terminals
- Included in:
- Parser, EBNFLL1Parser, EBNFPegParser
- Defined in:
- lib/ebnf/terminals.rb
Overview
Terminal definitions for the EBNF grammar
Constant Summary collapse
- SYMBOL_BASE =
%r(\b[a-zA-Z0-9_\.]+\b)u.freeze
- SYMBOL =
%r(#{SYMBOL_BASE}(?!\s*::=))u.freeze
- HEX =
%r(\#x\h+)u.freeze
- CHAR =
%r([\u0009\u000A\u000D\u0020-\uD7FF\u{10000}-\u{10FFFF}])u.freeze
- R_CHAR =
%r([\u0009\u000A\u000D\u0020-\u002C\u002E-\u005C\u005E-\uD7FF\u{10000}-\u{10FFFF}])u.freeze
- RANGE =
%r(\[(?:(?:#{R_CHAR}\-#{R_CHAR})|(?:#{HEX}\-#{HEX})|#{R_CHAR}|#{HEX})+-?\](?!\s+#{SYMBOL_BASE}\s*::=))u.freeze
- LHS =
%r((?:\[#{SYMBOL_BASE}\])?\s*#{SYMBOL_BASE}\s*::=)u.freeze
- O_RANGE =
%r(\[\^(?:(?:#{R_CHAR}\-#{R_CHAR})|(?:#{HEX}\-#{HEX}|#{R_CHAR}|#{HEX}))+-?\])u.freeze
- STRING1 =
%r("[\u0009\u000A\u000D\u0020\u0021\u0023-\uD7FF\u{10000}-\u{10FFFF}]*")u.freeze
- STRING2 =
%r('[\u0009\u000A\u000D\u0020-\u0026\u0028-\uD7FF\u{10000}-\u{10FFFF}]*')u.freeze
- POSTFIX =
%r([?*+])u.freeze
- PASS =
%r(( \s | (?:(?:\#[^x]|//)[^\n\r]*) | (?:/\*(?:(?:\*[^/])|[^*])*\*/) | (?:\(\*(?:(?:\*[^\)])|[^*])*\*\)) )+)xmu.freeze