CVS commit: [netbsd-7] src/usr.bin/units

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Sun Jul 15 10:47:54 UTC 2018

Modified Files:
        src/usr.bin/units [netbsd-7]: units.c

Log Message:
Pull up following revision(s) (requested by dholland in ticket #1620):

        usr.bin/units/units.c: revision 1.26,1.27

Improve the parser. Now we understand negative exponents; fixes PR 50768.

Also handle negative numbers better in general (don't randomly drop
the sign in a number of cases) and don't choke on exponents > 9.

This commit alters the meaning of a few previously valid but marginal
inputs (e.g. "3 foot-5 pound" is now treated as "3*-5 foot-pound"
rather than "3*5 foot-pound"; if you want the latter insert another
space) but corrects obviously wrong handling of many more.

 -

Improve previous slightly; while we accept e.g. "meter2" to mean "meter^2",
don't allow "meter-2" to be interpreted as "meter^-2" as that's very
confusing.


To generate a diff of this commit:
cvs rdiff -u -r1.25 -r1.25.4.1 src/usr.bin/units/units.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.