Re: How to find the offset of the first character in a string that's not a tab?

I did not know this! Isn’t anyone else shocked and surprised?? Bob S On Jan 22, 2021, at 2:33 PM, Ken Ray via use-livecode mailto:use-livecode@lists.runrev.com>> wrote: On Jan 21, 2021, at 8:36 AM, Keith Clarke via use-livecode mailto:use-livecode@lists.runrev.com>> wrote: Thanks Brian. I

Re: How to find the offset of the first character in a string that's not a tab?

> On Jan 21, 2021, at 8:36 AM, Keith Clarke via use-livecode > wrote: > > Thanks Brian. I looked at matchChunk in the dictionary & it seems to return a > boolean, rather than the offset. The boolean is just whether or not the matchChunk operation was successful; you need to provide

Re: How to find the offset of the first character in a string that's not a tab?

Always remember who is the computer, and who is the coder! The computer may need to perform a loop under the hood, but that doesn't mean you need to use the "repeat" keyword. It's often cleaner/faster when you don't. For those who value concise code and good performance in LiveCode, avoid

Re: How to find the offset of the first character in a string that's not a tab?

Ah, thanks, Brian - re-reading more carefully, I see how the first item in the positionVarsList would provide the offset of the first non-tab character. Re prettification, I’m trying to create a quick & dirty tool to process a set of comma-delimited query strings - to see their common patterns.

Re: How to find the offset of the first character in a string that's not a tab?

Just to clarify my suggestion, it isn’t the return value that you would use (other than to check for success), but the third variable in the call that has the position that you would be looking for. When you say that you are prettifying... are you doing something to adjust each tab in the

Re: How to find the offset of the first character in a string that's not a tab?

Thanks Brian. I looked at matchChunk in the dictionary & it seems to return a boolean, rather than the offset. Thanks all - I’ve stopped trying to find the syntax for ‘find any char but this’ in offset and instead, taken Dick’s advice to iterate through the chars and count the loops until

Re: How to find the offset of the first character in a string that's not a tab?

You could also use matchChunk with a regular expression that excludes the tab character. Sent from my iPhone > On Jan 21, 2021, at 7:14 AM, Keith Clarke via use-livecode > wrote: > > Ah yes indeed, I’d forgotten I could test with 'put not(tab)’ in the message > box - that certainly proves

Re: How to find the offset of the first character in a string that's not a tab?

Ah yes indeed, I’d forgotten I could test with 'put not(tab)’ in the message box - that certainly proves the syntax was wrong! :-) Best, Keith > On 21 Jan 2021, at 10:49, Dick Kriesel via use-livecode > wrote: > > > >> On Jan 21, 2021, at 2:34 AM, Keith Clarke via use-livecode >> wrote: >

Re: How to find the offset of the first character in a string that's not a tab?

> On Jan 21, 2021, at 2:34 AM, Keith Clarke via use-livecode > wrote: > I was just keen to understand why offset wasn’t happy with the ‘not(tab)’ in > this instance. expression "not(tab)" evaluates to true, which doesn’t serve your purpose — Dick

Re: How to find the offset of the first character in a string that's not a tab?

Thanks Dick, this would definitely work - and I’m iterating through characters and lines anyway as I attempt to prettify a long data string for eased human readability. I was just keen to understand why offset wasn’t happy with the ‘not(tab)’ in this instance. Best, Keith > On 21 Jan 2021,

Re: How to find the offset of the first character in a string that's not a tab?

> On Jan 21, 2021, at 2:25 AM, Dick Kriesel via use-livecode > wrote: > > Hi, Keith. You could test each character until you find a tab: > correction: until you find one that’s not a tab ___ use-livecode mailing list

Re: How to find the offset of the first character in a string that's not a tab?

> On Jan 21, 2021, at 1:30 AM, Keith Clarke via use-livecode > mailto:use-livecode@lists.runrev.com>> wrote: > > Please can anyone advise on the correct syntax for trying to find the first > non-tab character offset in a string Hi, Keith. You could test each character until you find a tab:

How to find the offset of the first character in a string that's not a tab?

Hi folks, Please can anyone advise on the correct syntax for trying to find the first non-tab character offset in a string, as 'offset(not(tab), tString)’ seems to be returning strange results - i.e. a number but not the correct one? Best, Keith