#!/bin/awk -f

# This is part of Phil's AWK tutorial at http://www.bolthole.com/AWK.html
# This program expects an LDIF file as input. ldifs have annoying
# linewrapping, in that if a line begins with a space, it is a continuation
# of a previous line. This program undoes that, and reconstructs the data
# as a single continuous line where appropriate.
# This is useful as preprocessing before transforming the data into a 
# different format (such as coaxing it into a real database)
#
# This program is a little "backwards" in order, for ease of programing.
# The first line actualy deals with the "continuation" case. It strips
# off the initial space, and saves the result.
# The second one is a fallthrough, which presumes it is a "normal" line.
# It first prints out any saved line, then resets the safe buffer to 
# contain the current line.
/^ / {addon=substr($0, 2, length()); BUFFER=BUFFER""addon;  next;}

{print BUFFER;  BUFFER=$0; }

#And dont forget to flush your internal buffers when done!
END {print BUFFER }