Smart multiline grep?

[Jason Clinton]

On Tuesday 21 June 2005 09:49, Gerald Combs wrote:
> Is there a grep-like utility that will return a variable number of
> context lines?  I need to search through source code for occurrences of

The problem statement is modeled by a fairly simple 5 state machine. Here's a 
very simple Ruby implementation of the state machine. It takes one argument 
which is the name of the function and searchable input on STDIN for grep-like 
behavior. It only returns the entire function header lines. Case sensitive, 
of course.

#!/usr/bin/ruby

more_state = false

while $stdin.gets()
    if  more_state == false and $_.include?( ARGV[0] )
        puts $_
        more_state = true if ! ( $_.include?("{") or $_.include?(";") )
    elsif more_state == true
        puts $_
        more_state = false if ( $_.include?("{") or $_.include?(";") )
    end
end

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