Editinput
Set Editinput option value …
Data ON | OFF
Command ON | OFF
Extend ON | OFF
Asian ON | OFF
(Initially: Data=OFF, Command=OFF, Extend=ON, Asian ON)
Normally Qedit accepts whatever you type as being valid. However, if you are connected to the computer via a phone line you will probably find that strange, nonprinting characters are getting into your files. These are generated by line noise. You can use Set Editinput Data or Set Editinput Command to tell Qedit to remove nonprinting characters from your input. However, nonprinting characters include useful characters such as BELL and ESC. You can explicitly insert nonprinting characters into your text using Set Decimal and Change, or using the WP or W$ function of Set Mod Qzmod.
Set Editinput Data ON removes “noise” from text added to your file in Line mode (it has no effect on Visual mode).
Set Editinput Command ON removes “noise” from commands.
If you don’t want to edit Roman-8 characters in either Line or Visual mode, use Set Editinput Extend OFF. This tells Qedit to discard the Roman-8 characters as noise, rather than allow them through as valid characters. The default setting is ON for the benefit of European users. When Extend is ON, UPSHIFT string windows will work on Roman-8 characters (e.g., List “ΓΌ” (up)).
Asian terminals use a two-character code for each symbol in the language. When you set Extend ON, you also set Asian ON by default. This validates all possible character codes from 128 to 255, not just 161 to 254 as used by the Roman-8 character set.
If you want Roman-8 characters, but don’t want Qedit Visual mode to display undefined control codes (such as decimal 130, which might be included in a file as a printer control), use Set Editinput Asian OFF. Otherwise, some terminals change the value of the codes, and other terminals just drop the codes from the file. When you turn Asian OFF, Roman-8 characters may still be displayed and edited, but control codes from 128 to 160 are displayed as dots (“.”) with a question mark to the left of the line, indicating that they can only be edited in Line mode, not Visual mode.