def _do_file_test(self, fname):
# Parse input file
lexer, parser, tokens, presult = pyless.parse(fname)
if lexer.getNumberOfSyntaxErrors() > 0:
self.fail("Lexer errors:\n" + '\n'.join(lexer.errormsgcache))
if parser.getNumberOfSyntaxErrors() > 0:
self.fail("Parser errors:\n" + '\n'.join(parser.errormsgcache))
r = presult.tree.toStringTree()
self.assertIsNotNone(r, "Parsing silently failed!")
# Save graph to dot
dotout.save_result(presult, fname+".dot")
# Tree walk
output = StringIO.StringIO()
twalker, tresult = pyless.twalk(presult, tokens, output=output)
if twalker.getNumberOfSyntaxErrors() > 0:
self.fail("Tree walker errors:\n" + '\n'.join(twalker.errormsgcache))
output.seek(0)
output2nd = self._reparse(output)
# Compare outputs - must be the same
output.seek(0)
self.assertEqual(output.getvalue(), output2nd.getvalue())
def _reparse(self, output):
# Reparse output CSS again
lexer, parser, tokens, presult = pyless.parse(output)
if lexer.getNumberOfSyntaxErrors() > 0:
self.fail("Lexer (reparse) errors:\n" + '\n'.join(lexer.errormsgcache))
if parser.getNumberOfSyntaxErrors() > 0:
self.fail("Parser (reparse) errors:\n" + '\n'.join(parser.errormsgcache))
r = presult.tree.toStringTree()
self.assertIsNotNone(r, "Parsing (reparse) silently failed!")
# Tree walk
output = StringIO.StringIO()
twalker, tresult = pyless.twalk(presult, tokens, output=output)
if twalker.getNumberOfSyntaxErrors() > 0:
self.fail("Tree walker errors:\n" + '\n'.join(twalker.errormsgcache))
output.seek(0)
return output
def _do_file_test(self, fname):
lexer, parser, result = pyless.parse(fname)
if lexer.getNumberOfSyntaxErrors() > 0:
self.fail("Lexer errors:\n" + '\n'.join(lexer.errormsgcache))
if parser.getNumberOfSyntaxErrors() > 0:
self.fail("Parser errors:\n" + '\n'.join(parser.errormsgcache))
r = result.tree.toStringTree()
self.assertIsNotNone(r, "Parsing silently failed!")
###
fout = open(fname+'.dot', "w")
fout.write('digraph {0} {{\nratio="fill";\npackMode="graph";\n'.format(os.path.basename(fname)[:-4].replace('-','_')))
fout.write('node [style="filled",fontname=Arial];\n')
def twalker(t):
tname = tokenNames[t.getType()]
if tname == str(t):
fout.write('"{0}" [shape=ellipse,label="{1}",fillcolor=paleturquoise];\n'.format(
id(t),
self._escape_dot_label(t)
)
)
else:
fout.write('"{0}" [shape=record,label="{{{2}|{1}}}",fillcolor=palegreen];\n'.format(
id(t),
self._escape_dot_label(t),
self._escape_dot_label(tname)
)
)
if t.parent is not None:
fout.write('"{0}" -> "{1}";\n'.format(id(t.parent), id(t)))
for ch in t.children:
twalker(ch)
twalker(result.tree)
fout.write("}\n")