3.13 Pragma: Maximum Input Line Length

3.13 Pragma: Maximum Input Line

Length

FunnelWeb generates an error for each input line that exceeds a

Tutorial

certain maximum number of characters. At the start of the

processing of each input file and each include file, this maximum is

Developer

set to a default value of 80. However, the maximum can be changed

using a maximum input line length pragma.

Reference

1 Introduction

pragma_mill = ps "maximum_input_line_length" s

2 Interface

              "=" s numorinf

3 Scanner

4 Parser

The maximum input line length can be varied 

dynamically

throughout the input file. Each maximum input line length pragma s

5 Analyser

scope covers the line following the pragma through to and including

6 Tangle

the next maximum input line length pragma, but not covering any

7 Weave

intervening include files. At the start of an include file, FunnelWeb

8 Shell

resets the maximum input line length to the default value. It restores

9 Commands

it to its previous value at the end of the include file.

10 Glossary

This pragma is useful for detecting text that has strayed off the right

11 References

side of the screen when editing. If you use FunnelWeb, and set the

maximum input line length to be the width of your editing window,

SEARCH

you will never be caught by, for example, off screen opening

comment symbols. You can also be sure that your source text can be

printed raw, if necessary, without lines wrapping around.

Webmaster

Copyright   Ross N. Williams 1992,1999. All rights reserved.

http://www.ross.net/funnelweb/reference/scanner_prag_maxin.html [3/3/2000 10:47:55 PM]