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#!/usr/bin/env ruby
#
# section-parse.rb: scan standard input and do the following:
#
# 1. look for a section that begins with "test-text "STUFF/foo" and ends
# with a blank line.
# 2. print the "bar.DIGITS" suffix for each line in the section
#
# Example:
# > cat input.txt
# test-text "blah blah blah garbage/foo"
# random crap bar.1
# random crap bar.2
# random crap bar.3
# random crap bar.4
#
# test-text "blah blah blah garbage/apple"
# random crap bar.1
# random crap bar.2
# random crap bar.3
# random crap bar.4
# > ./section-parse.rb < input.txt
# bar.1
# bar.2
# bar.3
# bar.4
#
# default state
in_body = false
# read lines
ARGF.readlines.map { |s| s.strip }.each do |s|
# check if either of the following conditions are true:
#
# 1. we are outside the section and the current line is the matching
# section header
# 2. we are in the section body and the current line is empty
if (!in_body && s =~ /^test-text ".*\/foo"$/) || (in_body && s =~ /^\s*$/)
# toggle state
in_body = !in_body
elsif in_body
# print "bar.NUMBERS" line suffix
puts s.gsub(/.*(bar\.\d+)$/, '\1')
end
end
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