gparse_test.py
上传用户:gyjinxi
上传日期:2007-01-04
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文件大小:6k
- ##############################################################################
- #
- # Zope Public License (ZPL) Version 1.0
- # -------------------------------------
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- #
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- ##############################################################################
- "$Id: gparse_test.py,v 1.3 1999/03/10 00:15:08 klm Exp $"
- import sys, parser, symbol, token
- from symbol import *
- from token import *
- from parser import sequence2ast, compileast, ast2list
- from gparse import *
- def pretty(s):
- l=ast2list(parser.expr(s))
- print l
- pret(l)
- def astl(s): return parser.ast2list(parser.expr(s))
- def pret(ast, level=0):
- if ISTERMINAL(ast[0]): print ' '*level, ast[1]
- else:
- print ' '*level, sym_name[ast[0]], '(%s)' % ast[0]
- for a in ast[1:]:
- pret(a,level+1)
-
- def tpretty():
- print 60*'='
- for arg in sys.argv[1:]:
- print
- print arg
- pretty(arg)
- print 60*'='
- def check(expr1=None, expr2=None):
- ok=1
- expr1=expr1 or sys.argv[1]
- expr2=expr2 or sys.argv[2]
- l1=munge(astl(expr1))
- l2=astl(expr2)
- try: c1=compileast(sequence2ast(l1))
- except:
- traceback.print_exc
- c1=None
- c2=compileast(sequence2ast(l2))
- if c1 !=c2:
- ok=0
- print 'test failed', expr1, expr2
- print
- print l1
- print
- print l2
- print
- ast=parser.sequence2ast(l1)
- c=parser.compileast(ast)
- pretty(expr1)
- pret(l1)
- pret(l2)
- return ok
-
- def spam():
- # Regression test
- import traceback
- ok=1
- for expr1, expr2 in (
- ("a*b", "__guarded_mul__(_vars, a, b)"),
- ("a*b*c",
- "__guarded_mul__(_vars, __guarded_mul__(_vars, a, b), c)"
- ),
- ("a.b", "__guarded_getattr__(_vars, a, 'b')"),
- ("a[b]", "__guarded_getitem__(_vars, a, b)"),
- ("a[b,c]", "__guarded_getitem__(_vars, a, b, c)"),
- ("a[b:c]", "__guarded_getslice__(_vars, a, b, c)"),
- ("a[:c]", "__guarded_getslice__(_vars, a, 0, c)"),
- ("a[b:]", "__guarded_getslice__(_vars, a, b)"),
- ("a[:]", "__guarded_getslice__(_vars, a)"),
- ("_vars['sequence-index'] % 2",
- "__guarded_getitem__(_vars, _vars, 'sequence-index') % 2"
- ),
- ):
- l1=munge(astl(expr1))
- l2=astl(expr2)
- try: c1=compileast(sequence2ast(l1))
- except:
- traceback.print_exc
- c1=None
- c2=compileast(sequence2ast(l2))
- if c1 !=c2:
- ok=0
- print 'test failed', expr1, expr2
- print
- print l1
- print
- print l2
- print
- ast=parser.sequence2ast(l1)
- c=parser.compileast(ast)
-
- if ok: print 'all tests succeeded'
- if __name__=='__main__':
- try:
- c=sys.argv[1]
- del sys.argv[1]
- globals()[c]()
- except: spam()