09-09-2016
> How will your parser cope with this line and others in that script you have to test with?
The parser of course does not have problem with long lines.
The formatter does not do anything about long lines, as there is no good solution to split lines. This should be done by humans, if they wish to.
> in my experience enforced formatting practices usually make things less readable and harder to edit.
Less readable is subjective, and harder to edit is until you get used to it. In my opinion, the tradeoff is worth it once there are multiple people maintaining a software. Otherwise, you can easily get to a point where pieces of the software are written in wildly different formats.
Diffs become bigger than they need to be, merge conflicts on the rise, readability decreases as noone is happy, etc. Those are simply irrelevant for scripts you develop on your own.
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MERGE(1) General Commands Manual MERGE(1)
NAME
merge - three-way file merge
SYNOPSIS
merge [ options ] file1 file2 file3
DESCRIPTION
merge incorporates all changes that lead from file2 to file3 into file1. The result ordinarily goes into file1. merge is useful for com-
bining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifications of file2. Then merge
combines both changes.
A conflict occurs if both file1 and file3 have changes in a common segment of lines. If a conflict is found, merge normally outputs a
warning and brackets the conflict with <<<<<<< and >>>>>>> lines. A typical conflict will look like this:
<<<<<<< file A
lines in file A
=======
lines in file B
>>>>>>> file B
If there are conflicts, the user should edit the result and delete one of the alternatives.
OPTIONS
-A Output conflicts using the -A style of diff3(1), if supported by diff3. This merges all changes leading from file2 to file3 into
file1, and generates the most verbose output.
-E, -e These options specify conflict styles that generate less information than -A. See diff3(1) for details. The default is -E. With
-e, merge does not warn about conflicts.
-L label
This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict
reports. That is, merge -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files
a, b and c.
-p Send results to standard output instead of overwriting file1.
-q Quiet; do not warn about conflicts.
-V Print RCS's version number.
DIAGNOSTICS
Exit status is 0 for no conflicts, 1 for some conflicts, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Manual Page Revision: 5.8.1; Release Date: 2012-06-06.
Copyright (C) 2010-2012 Thien-Thi Nguyen.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
SEE ALSO
diff3(1), diff(1), rcsmerge(1), co(1).
BUGS
It normally does not make sense to merge binary files as if they were text, but merge tries to do it anyway.
GNU RCS 5.8.1 2012-06-06 MERGE(1)