Difference between revisions of "Alter Commands"

Latest revision as of 17:30, 20 February 2017

The basic alter commands let you delete a specified number of characters or lines.

Del_Line(m) / DL(m)

Delete the following or previous 'm' lines of text.

Del_Lines(6) / DL(6)

Delete from the edit position up to and including the 6th "newline".

Del_Line(-4) / DL(-4)

Delete all characters (if any) on the current line up to the edit position and the previous 4 lines.

DL(0) DL

Delete the current line regardless of where the edit position is on it.

Del_Char(m) / DC(m)

Delete the following or previous 'm' characters. Remember that with DOS/Windows files, the "newline" is usually two characters.

Del_Char(100) / DC(100)

Delete the following 100 characters.

Del_Char(-2) / DC(-2)

Delete the previous 2 characters.

The basic insertion commands are Ins_Text( ) and Ins_Char( )

Ins_Text("text")

Insert the text 'text' at the edit position and advance the edit position.

Ins_Text("Help ")

Inserts the word "Help " at the edit position.

The "COUNT" option lets you insert multiple copies.

Ins_Text(".",COUNT,80)

Insert eighty (80) periods at the edit position.

Ins_Char(n)

Insert the single character with ASCII value 'n' at the edit position and advance the edit position.

Ins_Char(10)

Insert a line-feed (<LF>) at the edit position.

Ins_Char(205)

Insert a graphics character at the edit position.

The "OVERWRITE" option overstrikes the current character with a new one.

Ins_Char('A',OVERWRITE)

Overstrike (change) the current character to "A".

Related Resources

• Basic Commands
• Command Mode Overview
• Command Line Overview