3.21 Scanner/Parser Interface

3.21 Scanner/Parser Interface

If the scanner terminates without any errors, control is passed to

the parser. The parser parses the token list generated by the

Tutorial

scanner. The token list consists of text scraps, freestanding

typesetter directives, and special sequence tokens.

Developer

The user should bear in mind that 

the scanner finishes running

before the parser starts running.

  This means that the scanner

Reference

cannot be influenced in any way by higher order structures such

1 Introduction

as the parser might parse. For example, it is impossible to write

2 Interface

a FunnelWeb macro to include a file, or to write a macro that

3 Scanner

inserts a vskip pragma into the input text.

4 Parser

5 Analyser

6 Tangle

7 Weave

Webmaster

Copyright   Ross N. Williams 1992,1999. All rights

8 Shell

reserved.

9 Commands

10 Glossary

11 References

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http://www.ross.net/funnelweb/reference/scanner_parser.html [3/3/2000 10:48:29 PM]