1# Sed script that inserts the file called HEADER before the header entry.
2#
3# Copyright (C) 2001 Free Software Foundation, Inc.
4# Written by Bruno Haible <bruno@clisp.org>, 2001.
5# This file is free software; the Free Software Foundation gives
6# unlimited permission to use, copy, distribute, and modify it.
7#
8# At each occurrence of a line starting with "msgid ", we execute the following
9# commands. At the first occurrence, insert the file. At the following
10# occurrences, do nothing. The distinction between the first and the following
11# occurrences is achieved by looking at the hold space.
12/^msgid /{
13x
14# Test if the hold space is empty.
15s/m/m/
16ta
17# Yes it was empty. First occurrence. Read the file.
18r HEADER
19# Output the file's contents by reading the next line. But don't lose the
20# current line while doing this.
21g
22N
23bb
24:a
25# The hold space was nonempty. Following occurrences. Do nothing.
26x
27:b
28}
29