24 lines
672 B
Plaintext
24 lines
672 B
Plaintext
|
# Sed script that inserts the file called HEADER before the header entry.
|
||
|
|
#
|
||
|
|
# At each occurrence of a line starting with "msgid ", we execute the following
|
||
|
|
# commands. At the first occurrence, insert the file. At the following
|
||
|
|
# occurrences, do nothing. The distinction between the first and the following
|
||
|
|
# occurrences is achieved by looking at the hold space.
|
||
|
|
/^msgid /{
|
||
|
|
x
|
||
|
|
# Test if the hold space is empty.
|
||
|
|
s/m/m/
|
||
|
|
ta
|
||
|
|
# Yes it was empty. First occurrence. Read the file.
|
||
|
|
r HEADER
|
||
|
|
# Output the file's contents by reading the next line. But don't lose the
|
||
|
|
# current line while doing this.
|
||
|
|
g
|
||
|
|
N
|
||
|
|
bb
|
||
|
|
:a
|
||
|
|
# The hold space was nonempty. Following occurrences. Do nothing.
|
||
|
|
x
|
||
|
|
:b
|
||
|
|
}
|