Caché MultiValue Basic Reference
Line Continuation
[Home] [Back] [Next]
InterSystems: The power behind what matters   

Allows a program statement to occupy multiple lines.
By default, a MVBasic program statement can only continue to a second line if it contains a comma. You can specify a line break following a comma. For example:
CRT "Hello",
However, by specifying a line continuation character at the end of a line, you can place a line break almost anywhere in a program statement and continue the program statement on the next line.
You must enable a line continuation option in order to use line continuation characters. You can enable either (or both) of the two supported line continuation characters: backslash (\) or vertical bar (|). The following $OPTIONS statements enable these line continuation characters:
You can use either or both of these $OPTIONS statements. Like most option statements, you can disable an enabled option by prefacing it with a minus sign. For example $OPTIONS -LINE.CONT.BSLASH.
Once enabled, the specified line continuation character may be used in that MVBasic program. The line continuation character must be the last character in a line. A space or comment is not permitted following a line continuation character. It is recommended that you separate the line continuation character from the preceding characters by a space, though this is not required. You can continue a program statement over any number of lines by specifying a line continuation character at the end of each line.
You can use the backslash character (\) as both a line continuation character and a string quotation character in the same program. For example, the following is valid MVBasic code:
CRT \Hello World! \: \
  \It's an "awesome" day\
For clarity of code, it would be preferable to use the vertical bar (|) line continuation character when the backslash is being used as a quotation character. Regardless of which string quotation characters are used, you cannot use a line continuation character within a string.
In Caché and most emulations line continuation is disabled by default.
In jBASE emulation, the default is LINE.CONT.BSLASH enabled.
In UniData emulation, the default is LINE.CONT.VBAR enabled.
See Also

Send us comments on this page
Copyright © 1997-2019 InterSystems Corporation, Cambridge, MA