This function is merely here to free heap allocations.

delete the section

move cursor to first character of selection

We don't use strchr() because our strings are usually very short and often start with '%'

Return false to discard a character.

delete characters while updating undo

User can input math operators (e.g. +100) to edit a numerical values. NB: This is _not_ a full expression evaluator. We should probably add one and re

Public API to manipulate UTF-8 text We expose UTF-8 to the user (unlike the STB_TEXTEDIT_* functions which are manipulating wchar) FIXME: The existenc