Mark, Again thanks for chiming in. Here's an example:
Local tIndex, tDataArray put getMyRecordSet() into tRS put 1 into tIndex repeat while not isEof(tRS) Put makeThisRecordIntoAnArray(tRS) into tDataArray[tIndex] Add 1 to tIndex End repeat Now I can sort the keys of the array to ripple thru the records. This is what I imagined: local tDataArray put getMyRecordSet() into tRS repeat while not isEof(tRS) with counter tIndex Put makeThisRecordIntoAnArray(tRS) into tDataArray[tIndex] end repeat Another example: repeat for each word tWord in tWords with counter tIndex switch tIndex case 1 -- first word stuff break case the number of words in tWords -- last word stuff break default -- not first or last word stuff end switch -- all stuff end repeat Ralph DiMola IT Director Evergreen Information Services rdim...@evergreeninfo.net -----Original Message----- From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf Of Mark Waddingham via use-livecode Sent: Friday, August 11, 2017 5:25 AM To: How to use LiveCode Cc: Mark Waddingham Subject: RE: common code patterns On 2017-08-10 19:38, Ralph DiMola via use-livecode wrote: > To make this even more flexible: > > repeat for each line tLine in tLines with [counter] tIndex [start] > [{1}|x] [step] [{1}|y] > > end repeat Not quite on topic for the thread, but this interested in me in terms of - what are the use cases? The common code pattern we see as justification for 'repeat for each line tLine and index tIndex in tLines' is that it allows you to use the efficiency of iteration over a primary container, whilst still retaining the index of the chunk being iterated over. i.e. put 0 into tIndex repeat for each line tLine in tContainer add 1 to tIndex if tLine is not line tIndex of tContainer then answer "Oh dear - something is *really* wrong" end if end repeat So an extension to the syntax with 'index' means you get both pieces of information and a good amount of duality which justifies its existence. In what kinds of situation do you find yourself wanting an offset index, relative to the index of the iterated chunk? Warmest Regards, Mark. -- Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/ LiveCode: Everyone can create apps _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
