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Diffstat (limited to 'tests/yacc_nested.py')
-rw-r--r-- | tests/yacc_nested.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/yacc_nested.py b/tests/yacc_nested.py new file mode 100644 index 0000000..93ff400 --- /dev/null +++ b/tests/yacc_nested.py @@ -0,0 +1,30 @@ + +from ply import lex, yacc + +t_A = 'A' +t_B = 'B' +t_C = 'C' + +tokens = ('A', 'B', 'C') + +the_lexer = lex.lex() + +def t_error(t): + pass + +def p_error(p): + pass + +def p_start(t): + '''start : A nest C''' + pass + +def p_nest(t): + '''nest : B''' + print(t[-1]) + +the_parser = yacc.yacc(debug = False) + +the_parser.parse('ABC', the_lexer) +the_parser.parse('ABC', the_lexer, tracking=True) +the_parser.parse('ABC', the_lexer, tracking=True, debug=1) |