Sha256: 212d64149a0c15de9f427c4b83e3ae1b97ab62aa72eb3e01f5f2c17236b89681
Contents?: true
Size: 768 Bytes
Versions: 33
Compression:
Stored size: 768 Bytes
Contents
module Treetop
module Compiler
class CharacterClass < AtomicExpression
def compile(address, builder, parent_expression = nil)
super
builder.if__ "has_terminal?(#{grounded_regexp(text_value)}, true, index)" do
assign_result "instantiate_node(#{node_class_name},input, index...(index + 1))"
extend_result_with_inline_module
builder << "@index += 1"
end
builder.else_ do
"terminal_parse_failure(#{single_quote(characters)})"
assign_result 'nil'
end
end
def grounded_regexp(string)
# Double any backslashes, then backslash any single-quotes:
"'\\G#{string.gsub(/\\/) { '\\\\' }.gsub(/'/) { "\\'"}}'"
end
end
end
end
Version data entries
33 entries across 33 versions & 4 rubygems