Time to upgrade my technique...

[Eric Chatonet]

Bonjour Jim,

Le 10 juin 08 à 16:53, Jim Carwardine a écrit :

> Hi Folks... I hope this isn't asking too much.  I have found using  
> the docs to be less than satisfying when trying an alternative  
> coding technique.  I guess I fall into the old dog, actually the  
> old Hypercard dog, trying to learn the new Rev tricks.
>
> I just wrote a quick and dirty script to parse out an iCal calendar  
> saved as a text file to feed my car expense calculator which was  
> published a few months ago in a Rev newsletter.  The script is very  
> slow and I was intrigued to know how to speed it up as I am aware  
> that I am using very archaic scripting techniques.
>
> Here is my script.  It's relatively short and contains almost all  
> of my favourite coding patterns.  If anyone has the inclination,  
> perhaps you could point out how I might make use of Revs  
> improvements over Hypercard...
>
> It has to do with better ways to handle repeating actions and  
> better ways to handle lists... Thanks in advance... Jim

Some clues:

1. Put your fields into variables.
2. Use repeat for each form instead of repeat with i = x to y.
3. If conditions are exclusive use a 'if, else if' form or a switch  
structure.
4. Use vars instead of calling many times the same thing:

                 put char 1 to 4 of item 2 of line i of field 1 into  
eventYear -- hold event year - yyyymmdd
                 put char 5 to 6 of item 2 of line i of field 1 into  
eventMonth -- hold event month - yyyymmdd
                 put char 7 to 8 of item 2 of line i of field 1 into  
eventDay -- hold event day - yyyymmdd
                 put char 10 to 13 of item 2 of line i of field 1  
into eventTime -- hold event time

put item 2 of line i of <var> in <another var>
put char 1 to 4 of <another var> into eventYear
put char 5 to 6 of <another var> into eventMonth
etc.

Best regards from Paris,
Eric Chatonet.
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