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-rw-r--r--chall/ply-2.2/test/yacc_uprec.py64
1 files changed, 0 insertions, 64 deletions
diff --git a/chall/ply-2.2/test/yacc_uprec.py b/chall/ply-2.2/test/yacc_uprec.py
deleted file mode 100644
index 0e8711e..0000000
--- a/chall/ply-2.2/test/yacc_uprec.py
+++ /dev/null
@@ -1,64 +0,0 @@
-# -----------------------------------------------------------------------------
-# yacc_uprec.py
-#
-# A grammar with a bad %prec specifier
-# -----------------------------------------------------------------------------
-import sys
-sys.tracebacklimit = 0
-
-sys.path.insert(0,"..")
-import ply.yacc as yacc
-
-from calclex import tokens
-
-# Parsing rules
-
-# 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[3] == '/': 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()
-
-
-
-