checkin of Jack's original version
diff --git a/Tools/modulator/genmodule.py b/Tools/modulator/genmodule.py
new file mode 100755
index 0000000..1c4cd1f
--- /dev/null
+++ b/Tools/modulator/genmodule.py
@@ -0,0 +1,157 @@
+#
+# Genmodule - A python program to help you build (template) modules.
+#
+# Usage:
+#
+# o = genmodule.object()
+# o.name = 'dwarve object'
+# o.abbrev = 'dw'
+# o.funclist = ['new', 'dealloc', 'getattr', 'setattr']
+# o.methodlist = ['dig']
+#
+# m = genmodule.module()
+# m.name = 'beings'
+# m.abbrev = 'be'
+# m.methodlist = ['newdwarve']
+# m.objects = [o]
+#
+# genmodule.write(sys.stdout, m)
+#
+import sys
+import os
+import varsubst
+import string
+
+error = 'genmodule.error'
+
+#
+# Names of functions in the object-description struct.
+#
+FUNCLIST = ['new', 'tp_dealloc', 'tp_print', 'tp_getattr', 'tp_setattr',
+ 'tp_compare', 'tp_repr', 'tp_hash']
+TYPELIST = ['tp_as_number', 'tp_as_sequence', 'tp_as_mapping', 'structure']
+
+#
+# writer is a base class for the object and module classes
+# it contains code common to both.
+#
+class writer:
+ def __init__(self):
+ self._subst = None
+
+ def makesubst(self):
+ if not self._subst:
+ if not self.__dict__.has_key('abbrev'):
+ self.abbrev = self.name
+ self.Abbrev = string.upper(self.abbrev[0])+self.abbrev[1:]
+ subst = varsubst.Varsubst(self.__dict__)
+ subst.useindent(1)
+ self._subst = subst.subst
+
+ def addcode(self, name, fp):
+ ifp = self.opentemplate(name)
+ self.makesubst()
+ d = ifp.read()
+ d = self._subst(d)
+ fp.write(d)
+
+ def opentemplate(self, name):
+ for p in sys.path:
+ fn = os.path.join(p, name)
+ if os.path.exists(fn):
+ return open(fn, 'r')
+ fn = os.path.join(p, 'Templates')
+ fn = os.path.join(fn, name)
+ if os.path.exists(fn):
+ return open(fn, 'r')
+ raise error, 'Template '+name+' not found for '+self._type+' '+ \
+ self.name
+
+class module(writer):
+ _type = 'module'
+
+ def writecode(self, fp):
+ self.addcode('copyright', fp)
+ self.addcode('module_head', fp)
+ for o in self.objects:
+ o.writehead(fp)
+ for o in self.objects:
+ o.writebody(fp)
+ new_ml = ''
+ for fn in self.methodlist:
+ self.method = fn
+ self.addcode('module_method', fp)
+ new_ml = new_ml + ('{"%s",\t%s_%s,\t1},\n'%(fn, self.abbrev, fn))
+ self.methodlist = new_ml
+ self.addcode('module_tail', fp)
+
+class object(writer):
+ _type = 'object'
+ def __init__(self):
+ self.typelist = []
+ self.methodlist = []
+ self.funclist = ['new']
+ writer.__init__(self)
+
+ def writecode(self, fp):
+ self.addcode('copyright', fp)
+ self.writehead(fp)
+ self.writebody(fp)
+
+ def writehead(self, fp):
+ self.addcode('object_head', fp)
+
+ def writebody(self, fp):
+ new_ml = ''
+ for fn in self.methodlist:
+ self.method = fn
+ self.addcode('object_method', fp)
+ new_ml = new_ml + ('{"%s",\t%s_%s,\t1},\n'%(fn, self.abbrev, fn))
+ self.methodlist = new_ml
+ self.addcode('object_mlist', fp)
+
+ # Add getattr if we have methods
+ if self.methodlist and not 'tp_getattr' in self.funclist:
+ self.funclist.insert(0, 'tp_getattr')
+
+ for fn in FUNCLIST:
+ setattr(self, fn, '0')
+
+ #
+ # Special case for structure-access objects: put getattr in the
+ # list of functions but don't generate code for it directly,
+ # the code is obtained from the object_structure template.
+ # The same goes for setattr.
+ #
+ if 'structure' in self.typelist:
+ if 'tp_getattr' in self.funclist:
+ self.funclist.remove('tp_getattr')
+ if 'tp_setattr' in self.funclist:
+ self.funclist.remove('tp_setattr')
+ self.tp_getattr = self.abbrev + '_getattr'
+ self.tp_setattr = self.abbrev + '_setattr'
+ for fn in self.funclist:
+ self.addcode('object_'+fn, fp)
+ setattr(self, fn, '%s_%s'%(self.abbrev, fn[3:]))
+ for tn in TYPELIST:
+ setattr(self, tn, '0')
+ for tn in self.typelist:
+ self.addcode('object_'+tn, fp)
+ setattr(self, tn, '&%s_%s'%(self.abbrev, tn[3:]))
+ self.addcode('object_tail', fp)
+
+def write(fp, obj):
+ obj.writecode(fp)
+
+if __name__ == '__main__':
+ o = object()
+ o.name = 'dwarve object'
+ o.abbrev = 'dw'
+ o.funclist = ['new', 'tp_dealloc']
+ o.methodlist = ['dig']
+ m = module()
+ m.name = 'beings'
+ m.abbrev = 'be'
+ m.methodlist = ['newdwarve']
+ m.objects = [o]
+ write(sys.stdout, m)