Parsing mode

Automatic parsing of text is controlled by the parsing mode. Command parsing-toggle (menu: Options/Global Preferences/Parsing   key: Ctrl+F9) toggles the parsing mode. By default, parsing mode is on. When parsing mode is off, arbitrary text (e.g., syntactically incorrect text) can be entered and allowed to remain in place without complaint.

Turn parsing mode off.

Strike RETURN to materialize a <statement> placeholder (if necessary)

Type g:=1-2-3; h:=4-5-6; and strike RETURN. Note that the phrase just entered is left unparsed, as denoted by its different style.

The parser can be manually invoked on unparsed text at any time using command parse-selection (menu: Text/Parse Selection   X: Alt+P   NT: F9).

Click on the unparsed phrase to select it, then invoke parse-selection to parse it.

Turn parsing mode back on again.