From: "David A. Black" <dblack@...>
Date: 2005-09-14T12:19:25+09:00
Subject: Re: strings and regex's

Hi --

On Wed, 14 Sep 2005, jdm wrote:

> I'm parsing some html and have a table-driven state machine that configures
> itself by reading tuples (one per line) of "present state", "pattern to match",
> and "next state" with this code:
>
>  lineArray=Array.new()
>  stateTable=Hash.new()
>
>  File.open("stateTable.txt") { |file|
>    file.each { |line|
>      lineArray=line.scan(/[^\s]+/)
>      stateTable[lineArray[0]]=lineArray[1..-1]
>    }
>  }
>
> I've printed this hash out in several different ways with the same results: the
> key-value pairs look as expected (no extraneous spaces, newlines, etc.). Once
> the hash is set up, it drives a state machine with this code:
>
> 1  state="html"
> 2  while input=gets()                  # text lines are the s.m.'s "clock"
> 3    if input.chomp().length>0         # skip blank lines

Is it possible that you need chomp! instead of chomp ?  I'm not sure
what the regex looks like that you're testing it against later, but if
it doesn't allow a terminal \n then that may be the problem.


David

-- 
David A. Black
dblack@wobblini.net