Merge pull request #131 from nilason/update_cgrammar

Add full support for floating and integer constants and update of PLY

.flake8

@@ -9,34 +9,19 @@ per-file-ignores =
     # Files and directories which need fixes or specific exceptions.
     #
     # Description of codes:
-    # E302    expected 2 blank lines, found 0
-    # E305    expected 2 blank lines after end of function or class
     # E401    multiple imports on one line
-    # E402    module level import not at top of file
     # E501    line too long
-    # E711    comparison to None should be ‘if cond is None:’
-    # E722    do not use bare except, specify exception instead
-    # E731    do not assign a lambda expression, use a def
-    # E741    do not use variables named ‘l’, ‘O’, or ‘I’
-    #
-    # F401    module imported but unused
-    # F403    ‘from module import *’ used; unable to detect undefined names
-    # F405    name may be undefined, or defined from star imports: module
-    # F811    redefinition of unused name from line N
-    # F841    local variable name is assigned to but never used
-    #
-    # W391    blank line at end of file
-    # W605    invalid escape sequence ‘x’
     #
     ctypesgen/__init__.py: F401
-    ctypesgen/parser/yacc.py: E302, E501, E731, E741, F841
     ctypesgen/parser/cgrammar.py: E501
 
 max-line-length = 100
 
 exclude =
     ctypesgen/parser/parsetab.py,
     ctypesgen/parser/lextab.py,
+	ctypesgen/parser/yacc.py,
+	ctypesgen/parser/lex.py,
     demo/pydemolib.py,
     .git,
     __pycache__,

ctypesgen/__init__.py

@@ -1,7 +1,3 @@
-#!/usr/bin/env python
-# -*- coding: us-ascii -*-
-# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
-
 """
 Ctypesgencore is the module that contains the main body of ctypesgen - in fact,
 it contains everything but the command-line interface.

ctypesgen/descriptions.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 """
 ctypesgen.descriptions contains classes to represent a description of a
 struct, union, enum, function, constant, variable, or macro. All the

ctypesgen/expressions.py

@@ -65,14 +65,17 @@ def visit(self, visitor):
 
 
 class ConstantExpressionNode(ExpressionNode):
-    def __init__(self, value):
+    def __init__(self, value, is_literal=False):
         ExpressionNode.__init__(self)
         self.value = value
+        self.is_literal = is_literal
 
     def evaluate(self, context):
         return self.value
 
     def py_string(self, can_be_ctype):
+        if self.is_literal:
+            return self.value
         if self.value == float("inf"):
             return "float('inf')"
         elif self.value == float("-inf"):

ctypesgen/parser/__init__.py

@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 """
 This package parses C header files and generates lists of functions, typedefs,
 variables, structs, unions, enums, macros, and constants. This package knows

ctypesgen/parser/cdeclarations.py

@@ -43,7 +43,7 @@ def __init__(self):
     def __repr__(self):
         s = self.identifier or ""
         if self.bitfield:
-            s += ":%d" % self.bitfield
+            s += f":{self.bitfield.value}"
         if self.array:
             s += repr(self.array)
         if self.initializer: