def print_grammar(grammar_txt, grammar_fname):
g_parser = HandRolledGrammarParser(grammar_txt, grammar_fname)
g_ast, err = g_parser.parse()
if err:
return None, err
g, _ = Analyzer(g_ast).analyze()
printer = GrammarPrinter(g)
return printer.parse()
def compile_grammar(grammar_txt, grammar_fname, compiled_parser_class_name,
package, inline_base):
g_parser = HandRolledGrammarParser(grammar_txt, grammar_fname)
g_ast, err = g_parser.parse()
if err:
return None, err
g, _ = Analyzer(g_ast).analyze()
compiler = Compiler(g, compiled_parser_class_name, package, inline_base)
return compiler.walk()
def parse(grammar_txt,
input_txt,
grammar_fname='',
input_fname='',
use_compiled_grammar_parser=False):
if use_compiled_grammar_parser:
g_parser = CompiledGrammarParser(grammar_txt, grammar_fname)
else:
g_parser = HandRolledGrammarParser(grammar_txt, grammar_fname)
g_ast, err = g_parser.parse()
if err:
return None, err
g, _ = Analyzer(g_ast).analyze()
interp = Interpreter(g, input_txt, input_fname)
return interp.parse()
