On 22 November 2013 12:15, Lars Magne Ingebrigtsen <larsi@gnus.org> wrote:

> Bozhidar Batsov <bozhidar@batsov.com> writes:
>
> > I think it's quite important to provide an API closer to that of
> > popular programming languages, used often for text processing(Perl,
> > Python, Ruby, etc). That would include functions like:
> >
> > * string-join
>
> `mapconcat'
>

You can't really favour this:

(mapconcat 'identity '(s1 s2 s3) separator)

over:

(defun string-join (separator &rest strings)
  (mapconcat 'identity strings separator))

(string-join separator s1 s2 s3)


>
> > * string-trim/string-trim-left/string-trim-right
>
> Perhaps.
>
> > * string-chop
>
> `split-string'
>

I'm not sure what split-string has to do with this?

From Ruby's API docs (
http://www.ruby-doc.org/core-1.9.3/String.html#method-i-chop):

Returns a new String with the last character removed. If the string ends
with \r\n, both characters are removed. Applying chop to an empty string
returns an empty string.String#chomp is often a safer alternative, as it
leaves the string unchanged if it doesn’t end in a record separator.

It's available in most scripting languages.


>
> > * string-chomp
>
> What does that do?
>

"hello".chomp            #=> "hello"
"hello\n".chomp          #=> "hello"
"hello\r\n".chomp        #=> "hello"
"hello\n\r".chomp        #=> "hello\n"
"hello\r".chomp          #=> "hello"
"hello \n there".chomp   #=> "hello \n there"
"hello".chomp("llo")     #=> "he"

It's origin is Perl, but it's available in most scripting languages.


>
> --
> (domestic pets only, the antidote for overdose, milk.)
>    bloggy blog: http://lars.ingebrigtsen.no
>