Right now, the AT-SPI provides a getAttributeRun method in Accessibility_Text to allow an assistive technology to query the text attributes of existing text.  There are times, however, that the user wants to know what the attributes will be for the characters that will be inserted when they start typing.

For example, assume the user is typing in OOo and is using a default style where bold is turned off.  The user then back arrows two characters and presses Ctrl+b.  At this point in time, the character attributes at the current offset are for the non-bold character at the caret.  But, when the user starts typing, the character attributes will be bold.

We'd like to explore the idea of API that allows an assistive technology to query what the attributes will be for characters-to-be-inserted at the caret location, which is what we're calling the "insertion point."  This API should also support the case where the caret offset is at the end of the text (i.e., caretOffset == len(text)).