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"$Id: gparse_test.py,v 1.2 2001/03/03 18:48:31 henning 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()
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