Added a documentation panel with primitive word-wrap functionality. It can be displayed by Text.showDoc(string) in python and has a text-plugin script for function docs which may be invoked with Ctrl+I inside its params list. Eg. type "dir(" <Ctrl+I>

release/scripts/textplugin_functiondocs.py

@@ -0,0 +1,68 @@
+#!BPY
+"""
+Name: 'Function Documentation'
+Blender: 246
+Group: 'TextPlugin'
+Shortcut: 'Ctrl+I'
+Tooltip: 'Attempts to display documentation about the function preceding the cursor.'
+"""
+
+# Only run if we have the required modules
+try:
+	import bpy
+	from BPyTextPlugin import *
+	OK = True
+except ImportError:
+	OK = False
+
+def main():
+	txt = bpy.data.texts.active
+	if not txt:
+		return
+	
+	(line, c) = current_line(txt)
+	
+	# Check we are in a normal context
+	if get_context(txt) != NORMAL:
+		return
+	
+	# Look backwards for first '(' without ')'
+	b = 0
+	for i in range(c-1, -1, -1):
+		if line[i] == ')': b += 1
+		elif line[i] == '(':
+			b -= 1
+			if b < 0:
+				c = i
+				break
+	
+	pre = get_targets(line, c)
+	
+	if len(pre) == 0:
+		return
+	
+	imports = get_imports(txt)
+	builtins = get_builtins()
+	
+	# Identify the root (root.sub.sub.)
+	if imports.has_key(pre[0]):
+		obj = imports[pre[0]]
+	elif builtins.has_key(pre[0]):
+		obj = builtins[pre[0]]
+	else:
+		return
+	
+	# Step through sub-attributes
+	try:
+		for name in pre[1:]:
+			obj = getattr(obj, name)
+	except AttributeError:
+		print "Attribute not found '%s' in '%s'" % (name, '.'.join(pre))
+		return
+	
+	if hasattr(obj, '__doc__') and obj.__doc__:
+		txt.showDocs(obj.__doc__)
+
+# Check we are running as a script and not imported as a module
+if __name__ == "__main__" and OK:
+	main()