diff options
Diffstat (limited to 'test/yacc_unicode_literals.py')
-rw-r--r-- | test/yacc_unicode_literals.py | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/test/yacc_unicode_literals.py b/test/yacc_unicode_literals.py deleted file mode 100644 index 5ae4f5b..0000000 --- a/test/yacc_unicode_literals.py +++ /dev/null @@ -1,70 +0,0 @@ -# ----------------------------------------------------------------------------- -# yacc_unicode_literals -# -# Test for unicode literals on Python 2.x -# ----------------------------------------------------------------------------- -from __future__ import unicode_literals - -import sys - -if ".." not in sys.path: sys.path.insert(0,"..") -import ply.yacc as yacc - -from calclex import tokens - -# Parsing rules -precedence = ( - ('left','PLUS','MINUS'), - ('left','TIMES','DIVIDE'), - ('right','UMINUS'), - ) - -# dictionary of names -names = { } - -def p_statement_assign(t): - 'statement : NAME EQUALS expression' - names[t[1]] = t[3] - -def p_statement_expr(t): - 'statement : expression' - print(t[1]) - -def p_expression_binop(t): - '''expression : expression PLUS expression - | expression MINUS expression - | expression TIMES expression - | expression DIVIDE expression''' - if t[2] == '+' : t[0] = t[1] + t[3] - elif t[2] == '-': t[0] = t[1] - t[3] - elif t[2] == '*': t[0] = t[1] * t[3] - elif t[2] == '/': t[0] = t[1] / t[3] - -def p_expression_uminus(t): - 'expression : MINUS expression %prec UMINUS' - t[0] = -t[2] - -def p_expression_group(t): - 'expression : LPAREN expression RPAREN' - t[0] = t[2] - -def p_expression_number(t): - 'expression : NUMBER' - t[0] = t[1] - -def p_expression_name(t): - 'expression : NAME' - try: - t[0] = names[t[1]] - except LookupError: - print("Undefined name '%s'" % t[1]) - t[0] = 0 - -def p_error(t): - print("Syntax error at '%s'" % t.value) - -yacc.yacc() - - - - |