[GoLUG] [parse] My studies with O'Reilly's book on Flex and Bison

[David Billsbrough]

Original Message:
 
   Once upon a time,  Steve Litt <slitt at trou.....com> wrote:

> Hi all,

> After hitting all sorts of dead ends, I decided to read "flex & bison"
> by John Levine, published by O'Reilly. Unfortunately, it's going
> slowly. The very first simple example didn't compile, and when I got it
> to compile, it didn't work as designed. There are three possible causes
> of this failure:

>  1) Flex has changed
>  2) GCC has changed
>  3) The book's technical editing was insufficient.

> So I'll need to take my Hello World Flex program and slowly change it
> until it can count characters, words and lines like the example program
> in the book.

   { .... trimmed .... }

SteveT,

I tried the fb1-1.l example and got it to output:

I did this under my VPS running Ubuntu:

  -=-=-=-=-=-

kc4zvw at www:~$ ./a.out
The boy stood on the burning deck
shelling peanuts by the peck
       2      12      63
kc4zvw at www:~$

 -=-=-=-=-=-

regards,

David
----David Billsbrough (KC4ZVW)
QTH: Chuluota, FL -- grid: EL98kp