tarina

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insert-header.sin (672B)

      1 # Sed script that inserts the file called HEADER before the header entry.
      2 #
      3 # At each occurrence of a line starting with "msgid ", we execute the following
      4 # commands. At the first occurrence, insert the file. At the following
      5 # occurrences, do nothing. The distinction between the first and the following
      6 # occurrences is achieved by looking at the hold space.
      7 /^msgid /{
      8 x
      9 # Test if the hold space is empty.
     10 s/m/m/
     11 ta
     12 # Yes it was empty. First occurrence. Read the file.
     13 r HEADER
     14 # Output the file's contents by reading the next line. But don't lose the
     15 # current line while doing this.
     16 g
     17 N
     18 bb
     19 :a
     20 # The hold space was nonempty. Following occurrences. Do nothing.
     21 x
     22 :b
     23 }