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molotofc

Return a substring in a string by occurence

7 posts in this topic

Dear all,

I was wondering if there is any way to return a substring in a string by occurence?
 
e.g.
 
$string = "white,white,white,white"
$3white = search for the third occurence of the word 'white' in $string
msgbox(0,"",$3white)
 
obviously, $3white should return the word 'white', but it is the 3rd occurence from string $string
 
I tried StringInStr but it doesn't return the substring, it just returns the character count

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another way, using the StringSplit function.

Local $String = "White,wHite,whIte,whiTe"
Local $aString = StringSplit($String, ",")
ConsoleWrite($aString[3] & @LF)

- Bruce /*somdcomputerguy */  If you change the way you look at things, the things you look at change.

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another way, using sre

Local $string = "wHite,whIte,whiTe,whitE"
Local $sFind = "white"
Local $iOccurence = 3
$3white = StringRegExp($string, '(?i)' & $sFind, 3)[$iOccurence-1]

MsgBox(0, "", $3white)

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molotofc,

OK, I will bite. :D

 

obviously, $3white should return the word 'white', but it is the 3rd occurence from string $string

If you already know the string you are looking for, why do you need to return the 3rd instance? Your return variable will hold the same string as the search term, so what is the point? :huh:

M23


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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Indeed this would make more sense if the purpose is to extract a pattern or to replace an occurence of a substring

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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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