1 files changed, 0 insertions, 105 deletions
diff --git a/chall/ply-2.2/example/calc/calc.py b/chall/ply-2.2/example/calc/calc.py
deleted file mode 100644
index 5bf5d5d..0000000
--- a/chall/ply-2.2/example/calc/calc.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# -----------------------------------------------------------------------------
-# calc.py
-#
-# A simple calculator with variables.   This is from O'Reilly's
-# "Lex and Yacc", p. 63.
-# -----------------------------------------------------------------------------
-
-import sys
-sys.path.insert(0,"../..")
-
-tokens = (
-    'NAME','NUMBER',
-    )
-
-literals = ['=','+','-','*','/', '(',')']
-
-# Tokens
-
-t_NAME    = r'[a-zA-Z_][a-zA-Z0-9_]*'
-
-def t_NUMBER(t):
-    r'\d+'
-    try:
-        t.value = int(t.value)
-    except ValueError:
-        print "Integer value too large", t.value
-        t.value = 0
-    return t
-
-t_ignore = " \t"
-
-def t_newline(t):
-    r'\n+'
-    t.lexer.lineno += t.value.count("\n")
-    
-def t_error(t):
-    print "Illegal character '%s'" % t.value[0]
-    t.lexer.skip(1)
-    
-# Build the lexer
-import ply.lex as lex
-lex.lex()
-
-# Parsing rules
-
-precedence = (
-    ('left','+','-'),
-    ('left','*','/'),
-    ('right','UMINUS'),
-    )
-
-# dictionary of names
-names = { }
-
-def p_statement_assign(p):
-    'statement : NAME "=" expression'
-    names[p[1]] = p[3]
-
-def p_statement_expr(p):
-    'statement : expression'
-    print p[1]
-
-def p_expression_binop(p):
-    '''expression : expression '+' expression
-                  | expression '-' expression
-                  | expression '*' expression
-                  | expression '/' expression'''
-    if p[2] == '+'  : p[0] = p[1] + p[3]
-    elif p[2] == '-': p[0] = p[1] - p[3]
-    elif p[2] == '*': p[0] = p[1] * p[3]
-    elif p[2] == '/': p[0] = p[1] / p[3]
-
-def p_expression_uminus(p):
-    "expression : '-' expression %prec UMINUS"
-    p[0] = -p[2]
-
-def p_expression_group(p):
-    "expression : '(' expression ')'"
-    p[0] = p[2]
-
-def p_expression_number(p):
-    "expression : NUMBER"
-    p[0] = p[1]
-
-def p_expression_name(p):
-    "expression : NAME"
-    try:
-        p[0] = names[p[1]]
-    except LookupError:
-        print "Undefined name '%s'" % p[1]
-        p[0] = 0
-
-def p_error(p):
-    print "Syntax error at '%s'" % p.value
-
-import ply.yacc as yacc
-yacc.yacc()
-
-while 1:
-    try:
-        s = raw_input('calc > ')
-    except EOFError:
-        break
-    if not s: continue
-    yacc.parse(s)