diff options
Diffstat (limited to 'examples/stateMachine2.py')
| -rw-r--r-- | examples/stateMachine2.py | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/examples/stateMachine2.py b/examples/stateMachine2.py index 748bb8b..21e0545 100644 --- a/examples/stateMachine2.py +++ b/examples/stateMachine2.py @@ -1,5 +1,5 @@ # stateMachine.py
-#
+#
# module to define .pystate import handler
#
#import imputil
@@ -18,9 +18,9 @@ from pyparsing import Word, Group, ZeroOrMore, alphas, \ ident = Word(alphas+"_", alphanums+"_$")
-pythonKeywords = """and as assert break class continue def
- del elif else except exec finally for from global if import
- in is lambda None not or pass print raise return try while with
+pythonKeywords = """and as assert break class continue def
+ del elif else except exec finally for from global if import
+ in is lambda None not or pass print raise return try while with
yield True False"""
pythonKeywords = set(pythonKeywords.split())
def no_keywords_allowed(s,l,t):
@@ -46,7 +46,7 @@ namedStateMachine = Keyword("statemachine") + \ def expand_state_definition(source, loc, tokens):
indent = " " * (col(loc,source)-1)
statedef = []
-
+
# build list of states
states = set()
fromTo = {}
@@ -54,7 +54,7 @@ def expand_state_definition(source, loc, tokens): states.add(tn.fromState)
states.add(tn.toState)
fromTo[tn.fromState] = tn.toState
-
+
# define base class for state classes
baseStateClass = tokens.name + "State"
statedef.extend([
@@ -63,17 +63,17 @@ def expand_state_definition(source, loc, tokens): " return self.__class__.__name__",
" def next_state(self):",
" return self._next_state_class()" ])
-
+
# define all state classes
statedef.extend(
- "class {}({}): pass".format(s,baseStateClass)
+ "class {}({}): pass".format(s,baseStateClass)
for s in states )
statedef.extend(
- "{}._next_state_class = {}".format(s,fromTo[s])
+ "{}._next_state_class = {}".format(s,fromTo[s])
for s in states if s in fromTo )
-
+
return indent + ("\n"+indent).join(statedef)+"\n"
-
+
stateMachine.setParseAction(expand_state_definition)
def expand_named_state_definition(source,loc,tokens):
@@ -82,9 +82,9 @@ def expand_named_state_definition(source,loc,tokens): # build list of states and transitions
states = set()
transitions = set()
-
+
baseStateClass = tokens.name + "State"
-
+
fromTo = {}
for tn in tokens.transitions:
states.add(tn.fromState)
@@ -99,7 +99,7 @@ def expand_named_state_definition(source,loc,tokens): for s in states:
if s not in fromTo:
fromTo[s] = {}
-
+
# define state transition class
statedef.extend([
"class %sTransition:" % baseStateClass,
@@ -107,9 +107,9 @@ def expand_named_state_definition(source,loc,tokens): " return self.transitionName",
])
statedef.extend(
- "{} = {}Transition()".format(tn,baseStateClass)
+ "{} = {}Transition()".format(tn,baseStateClass)
for tn in transitions)
- statedef.extend("{}.transitionName = '{}'".format(tn,tn)
+ statedef.extend("{}.transitionName = '{}'".format(tn,tn)
for tn in transitions)
# define base class for state classes
@@ -128,19 +128,19 @@ def expand_named_state_definition(source,loc,tokens): " def __getattr__(self,name):",
" raise Exception(%s)" % excmsg,
])
-
+
# define all state classes
for s in states:
- statedef.append("class %s(%s): pass" %
+ statedef.append("class %s(%s): pass" %
(s,baseStateClass))
# define state transition maps and transition methods
for s in states:
trns = list(fromTo[s].items())
- statedef.append("%s.tnmap = {%s}" %
+ statedef.append("%s.tnmap = {%s}" %
(s, ",".join("%s:%s" % tn for tn in trns)) )
statedef.extend([
- "%s.%s = staticmethod(lambda : %s())" %
+ "%s.%s = staticmethod(lambda : %s())" %
(s,tn_,to_)
for tn_,to_ in trns
])
@@ -159,7 +159,7 @@ class SuffixImporter(object): the PEP, and also used Doug Hellmann's PyMOTW article `Modules and
Imports`_, as a pattern.
- .. _`Modules and Imports`: http://www.doughellmann.com/PyMOTW/sys/imports.html
+ .. _`Modules and Imports`: http://www.doughellmann.com/PyMOTW/sys/imports.html
Define a subclass that specifies a :attr:`suffix` attribute, and
implements a :meth:`process_filedata` method. Then call the classmethod
@@ -199,7 +199,7 @@ class SuffixImporter(object): checkpath = os.path.join(
dirpath,'{}.{}'.format(fullname,self.suffix))
yield checkpath
-
+
def find_module(self, fullname, path=None):
for checkpath in self.checkpath_iter(fullname):
if os.path.isfile(checkpath):
@@ -237,20 +237,20 @@ class PystateImporter(SuffixImporter): # MATT-NOTE: re-worked :func:`get_state_machine`
# convert any statemachine expressions
- stateMachineExpr = (stateMachine |
+ stateMachineExpr = (stateMachine |
namedStateMachine).ignore(
pythonStyleComment)
generated_code = stateMachineExpr.transformString(data)
if DEBUG: print(generated_code)
- # compile code object from generated code
- # (strip trailing spaces and tabs, compile doesn't like
+ # compile code object from generated code
+ # (strip trailing spaces and tabs, compile doesn't like
# dangling whitespace)
COMPILE_MODE = 'exec'
- codeobj = compile(generated_code.rstrip(" \t"),
- module.__file__,
+ codeobj = compile(generated_code.rstrip(" \t"),
+ module.__file__,
COMPILE_MODE)
exec(codeobj, module.__dict__)
|