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Hi all,

I still suck at regex as always and I need some help. According to the regex tester I normally use this should be working fine but it doesn't....

StringRegExp($sString, "\A[1-9]+[0-9]*(\-[1-9]+[0-9]*)?,*\Z")

I basically want to match:

  • all numbers EXCEPT 0, but including 10, 20, etc
  • with each number separated by a comma
  • and allowing a "-" separated range as a value

For example:

1-5,7,10-12

I've spent a couple hours modifying it but I'm not sure where I've gone wrong. Any help would be appreciated!


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15 minutes ago, mikell said:

?

StringRegExp($str, '^([1-9]+\d*(-[1-9]+\d*)?,?)+$')

 

 

12 minutes ago, jguinch said:
StringRegExp($sString, "^(([1-9]\d*)(?:-(?2))?)(?:,(?1))*$")

 

Thanks you all. I think I see where I went wrong! :)


My UDFs are generally for me. If they aren't updated for a while, it means I'm not using them myself. As soon as I start using them again, they'll get updated.

My Projects
Cisco FinesseGithubIRC UDFWindowEx UDF

 

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What is the most efficient way to ensure that the number after the hyphen is greater than the number before it?  As if you were passing that range to arraydelete or similar where it would be a requirement...

#include<array.au3>

local $arr = [0,1,2,3,4,5,6,7,8,9,10]

$sString = "1-5,7,8-9"

msgbox(0, '' , StringRegExp($sString, "^(([1-9]\d*)(?:-(?2))?)(?:,(?1))*$"))

msgbox(0, '' , StringRegExp($sString, '^([1-9]+\d*(-[1-9]+\d*)?,?)+$'))

_ArrayDelete($arr , stringreplace($sString  , "," , ";"))
_ArrayDisplay($arr)

 

Edited by iamtheky

,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-.
|(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/
(_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_)
| | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) (
| | | | |)| | \ / | | | | | |)| | `--. | |) \ | |
`-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_|
'-' '-' (__) (__) (_) (__)

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2 hours ago, mikell said:

StringRegExp($str, '^([1-9]+\d*(-[1-9]+\d*)?,?)+$')

Fails. Misses when the final number is > 9 and is followed by - and another number.  For instance, 1-34-5 is matched as 1-3 then 4-5.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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Is it not this simple?...

#include <Array.au3>

Local $str = '1-34,1-5,7,10-12'

Local $aret = StringRegExp($str, '([\d\-]+)(?:,|$)', 3)

_ArrayDisplay($aret)

...ready for my dose of humble pie...

kylomas


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"I like pigs.  Dogs look up to us.  Cats look down on us.  Pigs treat us as equals."

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that scoops up 0 and negatives

#include <Array.au3>

Local $str = '0,1-5,-7,10-12'

msgbox(0, '' , StringRegExp($str, '([\d\-]+)(?:,|$)'))

 

Edited by iamtheky

,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-.
|(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/
(_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_)
| | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) (
| | | | |)| | \ / | | | | | |)| | `--. | |) \ | |
`-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_|
'-' '-' (__) (__) (_) (__)

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10 hours ago, jchd said:

Fails. Misses when the final number is > 9 and is followed by - and another number.  For instance, 1-34-5 is matched as 1-3 then 4-5.

It doesn't fail if used with the $STR_REGEXPMATCH flag for a simple match/nomatch as intended in post #1
The pattern is inappropriate indeed to extract the results but it was not the initial question

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@mikell :

#include <StringConstants.au3>

Local $str = "7-12-15"
MsgBox(0, "", StringRegExp($str, '^([1-9]+\d*(-[1-9]+\d*)?,?)+$', $STR_REGEXPMATCH) )

:P

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Just another approach:

#include <Array.au3>

Local $str = '0,1-5,-7,3-4-5,10-12'

$a_RE = StringRegExp($str, '(?:\A|,)([1-9]\d*(?>-[1-9]\d*)?)(?=(?>\Z|,))', 3)
_ArrayDisplay($a_RE)

Edit: Ah - i misunderstood a little bit: You don't want to match - you wan't to check the whole string - right?
Then this is my approach: 

#include <Array.au3>

Local $str = '10,1-5,7,3-5,10-12'

MsgBox(0,"", StringRegExp($str, '\A(?>[1-9]\d*(?>-[1-9]\d*)?,?)*\Z'))

Edit2: Hm - quite the same as mikell's 

Edited by AspirinJunkie

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