1 files changed, 0 insertions, 114 deletions
diff --git a/chall/ply-2.2/example/unicalc/calc.py b/chall/ply-2.2/example/unicalc/calc.py
deleted file mode 100644
index 7e60433..0000000
--- a/chall/ply-2.2/example/unicalc/calc.py
+++ /dev/null
@@ -1,114 +0,0 @@
-# -----------------------------------------------------------------------------
-# calc.py
-#
-# A simple calculator with variables.   This is from O'Reilly's
-# "Lex and Yacc", p. 63.
-#
-# This example uses unicode strings for tokens, docstrings, and input.
-# -----------------------------------------------------------------------------
-
-import sys
-sys.path.insert(0,"../..")
-
-tokens = (
-    'NAME','NUMBER',
-    'PLUS','MINUS','TIMES','DIVIDE','EQUALS',
-    'LPAREN','RPAREN',
-    )
-
-# Tokens
-
-t_PLUS    = ur'\+'
-t_MINUS   = ur'-'
-t_TIMES   = ur'\*'
-t_DIVIDE  = ur'/'
-t_EQUALS  = ur'='
-t_LPAREN  = ur'\('
-t_RPAREN  = ur'\)'
-t_NAME    = ur'[a-zA-Z_][a-zA-Z0-9_]*'
-
-def t_NUMBER(t):
-    ur'\d+'
-    try:
-        t.value = int(t.value)
-    except ValueError:
-        print "Integer value too large", t.value
-        t.value = 0
-    return t
-
-t_ignore = u" \t"
-
-def t_newline(t):
-    ur'\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','PLUS','MINUS'),
-    ('left','TIMES','DIVIDE'),
-    ('right','UMINUS'),
-    )
-
-# dictionary of names
-names = { }
-
-def p_statement_assign(p):
-    'statement : NAME EQUALS expression'
-    names[p[1]] = p[3]
-
-def p_statement_expr(p):
-    'statement : expression'
-    print p[1]
-
-def p_expression_binop(p):
-    '''expression : expression PLUS expression
-                  | expression MINUS expression
-                  | expression TIMES expression
-                  | expression DIVIDE expression'''
-    if p[2] == u'+'  : p[0] = p[1] + p[3]
-    elif p[2] == u'-': p[0] = p[1] - p[3]
-    elif p[2] == u'*': p[0] = p[1] * p[3]
-    elif p[2] == u'/': p[0] = p[1] / p[3]
-
-def p_expression_uminus(p):
-    'expression : MINUS expression %prec UMINUS'
-    p[0] = -p[2]
-
-def p_expression_group(p):
-    'expression : LPAREN expression RPAREN'
-    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(unicode(s))