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IDE and Compiler >> Tools and Utilities >> FNnxtwrd() TOOL (fixed again)
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FNnxtwrd() TOOL (fixed again)
Post by michael on Nov 1st, 2016, 01:37am

This tool should work for an interpreter style project.

This is not meant for keyboard interpreter. It is for interpreting structured macros created by a drawing program.

I have improved it after the later posts...


Code:
      g$="happy halloween my fellow programmers  "
      REPEAT
        h$=FNnxtwrd(g$)
        IF h$<>"" THEN PRINT h$
      UNTIL h$=""
      END
      DEFFNnxtwrd(c$)
      PRIVATE cnt%
      LOCAL ret$
      cnt%=cnt%+1
      WHILE MID$(c$,cnt%,1)<>" "
        ret$=ret$+MID$(c$,cnt%,1)
        cnt%=cnt%+1
      ENDWHILE
      IF ret$="" THEN cnt%=0
      =ret$
Re: FNnxtwrd() TOOL (fixed)
Post by DDRM on Nov 1st, 2016, 09:15am

Hi Michael,

It work fine, but it's a shame that you need to add a space and an asterisk at the end of your string. It will also fail if there are punctuation marks instead of spaces (and the punctuation marks will end up in your words).

The issue with a terminal space is particularly critical - as written the subroutine gets locked into an infinite loop!

Could you write a version that avoids those pitfalls? That might be more generally useful.

Best wishes,

D
Re: FNnxtwrd() TOOL (fixed)
Post by michael on Nov 1st, 2016, 2:32pm

When my button creation suite is completed, and the PAINT macro tool, it will have this tool built in.
Its not meant to be a keyboard input tool. Your mouse will do the work. It will work like windows paint, but instead of making a BMP image, it will make macros.
You wont be needing to do fine work, as objects, such as body parts will be easy to select and place on your creation.

It will take time, but its coming.. Here is a sneak peak at the work in progress:

( keep in mind this is a button only creation version. The PAINT version for toons will work off of this model.)

http://programming.conforums.com/index.cgi?board=Experiment&action=display&num=1477270529&start=0

Re: FNnxtwrd() TOOL (fixed)
Post by Zaphod on Nov 1st, 2016, 3:31pm

Let's see if we can suggest alternative ways of doing this.
What we are doing is scanning the string g$ one character at a time until we get to a space.
We could do that more simply and faster by using INSTR(g$,CHR$32), it is what that keyword does.
Then you return the first word and also keep a count of where you were.

The next time around you give it the original string again and start counting from the point you left off previously. What you could do instead is just RETURN the remainder of the string once you had got your first word and use that. In which case you can start from the beginning of the returned word again and don't need the counter.
word$=LEFT$(g$,J%-1) :remainder$=MID$(g$,J%+1)

Then you had to know how many times to go through the loop and supply the original string that many times. But if you use the remainder$ you don't have to do that and you know when you are done because the remainder$ is "".
This lets the repeated application of FNnxtwrd(g$)type function be compacted into a loop with a finite termination point.

So the code could look like:
Code:
      g$="happy halloween my fellow programmers!!! * "

      REPEAT
        PRINT FNgetword(g$)
      UNTIL g$=""

      END


      DEF FNgetword(RETURN z$)
      LOCAL J%, b$
      J%=INSTR(z$,CHR$32)                   :REM Find the next space
      IF J% THEN
        b$=LEFT$(z$,J%-1) :z$=MID$(z$,J%+1) :REM Slice off next value from string.
      ELSE
        =FNtrim(z$)        :REM No space so must be last field in record.
      ENDIF
      =FNtrim(b$)

      DEF FNtrim(a$)
      REM trim any punctuation here as needed.
      =a$

Finally I put in FNtrim(a$)which is a blank function where you could put any triming of punctuation that DDRM mentioned. And, of course, you don't need the "*" to terminate the string.

Was this a trick or a treat?
Re: FNnxtwrd() TOOL (fixed again)
Post by michael on Nov 2nd, 2016, 02:41am

I improved the first post and will improve it more later as my program needs increase, which they will..
Thanks for the snippets... I will work on this.