svn merge file:///D:/svnrepos/vcxsrv/branches/released .

1 files changed, 166 insertions, 0 deletions

diff --git a/libxcb/xcb-proto/xcbgen/state.py b/libxcb/xcb-proto/xcbgen/state.py
new file mode 100644
index 000000000..51efc9480
--- /dev/null
+++ b/libxcb/xcb-proto/xcbgen/state.py
@@ -0,0 +1,166 @@
+'''
+This module contains the namespace class and the singleton module class.
+'''
+from os.path import dirname, basename
+from xml.etree.cElementTree import parse
+
+import matcher
+from error import *
+from xtypes import *
+
+import __main__
+
+class Namespace(object):
+    '''
+    Contains the naming information for an extension.
+
+    Public fields:
+
+    header is the header attribute ("header file" name).
+    is_ext is true for extensions, false for xproto.
+    major_version and minor_version are extension version info.
+    ext_xname is the X extension name string.
+    ext_name is the XCB extension name prefix.
+    '''
+    def __init__(self, filename):
+        # Path info
+        self.path = filename
+        self.dir = dirname(filename)
+        self.file = basename(filename)
+
+        # Parse XML
+        self.root = parse(filename).getroot()
+        self.header = self.root.get('header')
+        self.ns = self.header + ':'
+        
+        # Get root element attributes
+        if self.root.get('extension-xname', False): 
+            self.is_ext = True
+            self.major_version = self.root.get('major-version')
+            self.minor_version = self.root.get('minor-version')
+            self.ext_xname = self.root.get('extension-xname')
+            self.ext_name = self.root.get('extension-name')
+            self.prefix = ('xcb', self.ext_name)
+        else:
+            self.is_ext = False
+            self.ext_name = ''
+            self.prefix = ('xcb',)
+
+
+class Module(object):
+    '''
+    This is the grand, encompassing class that represents an entire XCB specification.
+    Only gets instantiated once, in the main() routine.
+
+    Don't need to worry about this much except to declare it and to get the namespace.
+
+    Public fields:
+    namespace contains the namespace info for the spec.
+    '''
+    open = __main__.output['open']
+    close = __main__.output['close']
+
+    def __init__(self, filename, output):
+        self.namespace = Namespace(filename)
+        self.output = output
+
+        self.imports = []
+        self.types = {}
+        self.events = {}
+        self.errors = {}
+        self.all = []
+
+        # Register some common types
+        self.add_type('CARD8', '', ('uint8_t',), tcard8)
+        self.add_type('CARD16', '', ('uint16_t',), tcard16)
+        self.add_type('CARD32', '', ('uint32_t',), tcard32)
+        self.add_type('INT8', '', ('int8_t',), tint8)
+        self.add_type('INT16', '', ('int16_t',), tint16)
+        self.add_type('INT32', '', ('int32_t',), tint32)
+        self.add_type('BYTE', '', ('uint8_t',), tcard8)
+        self.add_type('BOOL', '', ('uint8_t',), tcard8)
+        self.add_type('char', '', ('char',), tchar)
+        self.add_type('float', '', ('float',), tfloat)
+        self.add_type('double', '', ('double',), tdouble)
+        self.add_type('void', '', ('void',), tcard8)
+
+    # This goes out and parses the rest of the XML
+    def register(self):
+        matcher.execute(self, self.namespace)
+
+    # Recursively resolve all types
+    def resolve(self):
+        for (name, item) in self.all:
+            item.resolve(self)
+
+    # Call all the output methods
+    def generate(self):
+        self.open()
+
+        for (name, item) in self.all:
+            item.out(name)
+
+        self.close()
+
+    # Keeps track of what's been imported so far.
+    def add_import(self, name, namespace):
+        self.imports.append((name, namespace.header))
+
+    def has_import(self, name):
+        for (name_, header) in self.imports:
+            if name_ == name:
+                return True
+        return False
+
+    # Keeps track of non-request/event/error datatypes
+    def add_type(self, id, ns, name, item):
+        key = ns + id
+        if key in self.types:
+            return
+        self.types[key] = (name, item)
+        if name[:-1] == self.namespace.prefix:
+            self.all.append((name, item))
+
+    def get_type_impl(self, id, idx):
+        key = id
+        if key in self.types:
+            return self.types[key][idx]
+
+        key = self.namespace.ns + id
+        if key in self.types:
+            return self.types[key][idx]
+
+        for key in self.types.keys():
+            if key.rpartition(':')[2] == id:
+                return self.types[key][idx]
+
+        raise ResolveException('Type %s not found' % id)
+
+    def get_type(self, id):
+        return self.get_type_impl(id, 1)
+
+    def get_type_name(self, id):
+        return self.get_type_impl(id, 0)
+
+    # Keeps track of request datatypes
+    def add_request(self, id, name, item):
+        if name[:-1] == self.namespace.prefix:
+            self.all.append((name, item))
+
+    # Keeps track of event datatypes
+    def add_event(self, id, name, item):
+        self.events[id] = (name, item)
+        if name[:-1] == self.namespace.prefix:
+            self.all.append((name, item))
+
+    def get_event(self, id):
+        return self.events[id][1]
+
+    # Keeps track of error datatypes
+    def add_error(self, id, name, item):
+        self.errors[id] = (name, item)
+        if name[:-1] == self.namespace.prefix:
+            self.all.append((name, item))
+
+    def get_error(self, id):
+        return self.errors[id][1]