diff options
Diffstat (limited to 'tool/transcode-tblgen.rb')
| -rwxr-xr-x | tool/transcode-tblgen.rb | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tool/transcode-tblgen.rb b/tool/transcode-tblgen.rb index f8da86d8c9..4895c101e0 100755 --- a/tool/transcode-tblgen.rb +++ b/tool/transcode-tblgen.rb @@ -23,6 +23,8 @@ HEX2 = /[0-9A-Fa-f]{2}/ class StrSet attr_reader :pat + SINGLE_BYTE_RANGES = (0..255).map {|i| [i..i] } + def self.parse(pattern) if /\A\s*((#{HEX2}|\{(#{HEX2}|#{HEX2}-#{HEX2})(,(#{HEX2}|#{HEX2}-#{HEX2}))*\})+(\s+|\z))*\z/o !~ pattern raise ArgumentError, "invalid pattern: #{pattern.inspect}" @@ -33,7 +35,7 @@ class StrSet while !seq.empty? if /\A(#{HEX2})/o =~ seq byte = $1.to_i(16) - seq_result << [byte..byte] + seq_result << SINGLE_BYTE_RANGES[byte] seq = $' elsif /\A\{([^\}]+)\}/ =~ seq set = $1 @@ -448,7 +450,7 @@ End } if n = PostMemo[table] - return n + return PreMemo[[self,valid_encoding]] = n end if !name_hint |