CSE 303 11/22/2004

University of Washington Computer Science & Engineering

CSE 303: Concepts and Tools for Software Development - Autumn 2004

The gzip'ed, tar'ed file flexExamples.tar.gz contains:

Files Comments

wc.flex A simple word count program (like wc). To build it, use 'make wc'.

nums.h
nums.flex
nums-main.cxx A flex program that extracts strings that look like numbers from stdin. To build it, 'make nums'. To run, try './nums.exe <nums-lexer.c'.
Note: The flex implementation is slightly more complicated than necessary to show off some features of flex that might be useful to you.
Note: main() has been separated into another file in this example, to show how that's done. Part of how that's done is the two lines beginning extern in nums.h.

Files		Comments
wc.flex		A simple word count program (like wc). To build it, use `'make wc'`.

nums.h nums.flex nums-main.cxx		A flex program that extracts strings that look like numbers from `stdin`. To build it, `'make nums'`. To run, try `'./nums.exe <nums-lexer.c'`. Note: The `flex` implementation is slightly more complicated than necessary to show off some features of `flex` that might be useful to you. Note: `main()` has been separated into another file in this example, to show how that's done. Part of how that's done is the two lines beginning `extern` in nums.h.