Standard English computer keyboard layouts inherited the single and double straight quotation marks from the typewriter (the single quotation mark also doubling as an apostrophe), and they do not include individual keys for left-handed and right-handed typographic quotation marks. In character encoding terms, these characters are labeled "". However, most computer text-editing programs provide a "smart quotes" feature to automatically convert straight quotation marks into bidirectional punctuation, though sometimes imperfectly (see below). Generally, this smart quote feature is enabled by default, and it can be turned off in an "options" or "preferences" dialog. Some websites do not allow typographic quotation marks or apostrophes in posts. One can skirt these limitations, however, by using the HTML character codes or entities or the other key combinations in the following table. In Windows, AutoHotkey scripts can be used to assign simpler key combinations to opening and closing quotation marks.