Hi!
I have a log file with timestamps and messages:
01:00 x
02:00 y
03:00 z
To compare the time elapsed between two events I want to prefix each
line with the timestamp of the previous time. I tried to use
%s/^/\=matchstr(getline(line(".")-1), "\\d\\{2}:\\d\\{2} ")
but somehow the first match is prepended to every line:
01:00 x
01:00 02:00 y
01:00 03:00 z
A larger example would be the file
http://www.rfc-editor.org/in-notes/rfc-index.txt
with the command
%s/^/\=matchstr(getline(line(".")-1), "\\d\\{4} ")
The first match 1129 from line 24 is prepended to every following line.
Where is the problem?
Thanks in advance,
Dennis Benzinger
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