Creates a text mark. Add it to a buffer using TextBuffer.addMark.
If name is NULL, the mark is anonymous; otherwise, the mark can be
retrieved by name using TextBuffer.getMark. If a mark has left
gravity, and text is inserted at the mark’s current location, the mark
will be moved to the left of the newly-inserted text. If the mark has
right gravity (left_gravity = FALSE), the mark will end up on the
right of newly-inserted text. The standard left-to-right cursor is a
mark with right gravity (when you type, the cursor stays on the right
side of the text you’re typing).
Creates a text mark. Add it to a buffer using TextBuffer.addMark. If name is NULL, the mark is anonymous; otherwise, the mark can be retrieved by name using TextBuffer.getMark. If a mark has left gravity, and text is inserted at the mark’s current location, the mark will be moved to the left of the newly-inserted text. If the mark has right gravity (left_gravity = FALSE), the mark will end up on the right of newly-inserted text. The standard left-to-right cursor is a mark with right gravity (when you type, the cursor stays on the right side of the text you’re typing).