[OctDev] str*cmp* functions

[William P. Y. H. <wil...@gm...>]

I've done the following:
1. Changed the help text of the strcmp function to reflect its ability
to accept cell arrays as arguments.
2. Simplified the strcmpi and strncmp functions.
3. Imported strncmpi from octave-forge and simplified it.
4. Written the strtrunc function.

Explanation:
1. strcmp is actually already compatible with Matlab's strcmp, so I
just added the help text.
2. The implementations of strcmpi, strncmp, and strncmpi
(octave-forge) are too complex, IMO, so I simplified them.
3. But the changes made to strncmp and strncmpi needs strtrunc, so I wrote =
it.
4. strtrunc takes a string or cellstr as its first argument (s), then
truncates it to the value of the second argument (n).

Although strtrunc is not present in Matlab, I think this is useful, so
I'm sending it here. I hope John would accept this.

The attachments:
1. str2.diff.txt: diff for strcmp, strcmpi, strncmp
2. str2.ChangeLog.src.txt: changelog entry for strcmp
3. str2.ChangeLog.scripts.txt: changelog entry for strcmpi, strncmp,
strncmpi and strtrunc
4. strncmpi.m.txt, strtrunc.m.txt: the corresponding functions

--
William Poetra Yoga Hadisoeseno