Problem with RegExMatch Topic is solved

[SEHot]

My code;

Code: Select all

GuiControl,,StatusText, Searching subject for file numbers
FoundPos := RegExMatch(Haystack,"O)\b\d{4,6}\.\d{1,4}\b|\b\d{4,6}\/\d{1,4}\b",FoundNumber)
FoundCount := FoundNumber.Count()
GuiControl,,StatusText, Found: %FoundCount%

The Haystack is

Re: 091795.0001 this also 055916.0002 and 96190.14 also 69190/11

The above code produces zero matches.
Using regex101.com Broken Link for safety
All four matches are found

Changing the RegEx

Code: Select all

GuiControl,,StatusText, Searching subject for file numbers
FoundPos := RegExMatch(Haystack,"O)\b\d{4,6}(\.|\/)\d{1,4}\b",FoundNumber)
FoundCount := FoundNumber.Count()
GuiControl,,StatusText, Found: %FoundCount%

I now get 1 match, but regex101.com still finds all four
Using VBScript also finds all four matches with both RegExs
Am I missing something ?

[sinkfaze]

regex101 uses an implementation of regex with a global flag, which tells the engine to keep matching until no more matches can be found. AHK does not.

[swagfag]

the regexmatch object is a mess. Count() only tells u how many subpatterns(()) its matched not the number of total matches, hence 0 since u havent defined any subpatterns in the first regexp

[sinkfaze]

Also, .Count returns the overall number of subpatterns in your regex, so it's returning what's expected based on your regexes. If you want to see the match, you should use .Value.

[TheDewd]

Code: Select all

#SingleInstance, Force

Haystack := "Re: 091795.0001 this also 055916.0002 and 96190.14 also 69190/11"

Pos := 0

While (Pos := RegExMatch(Haystack, "\b\d{4,6}(\.|\/)\d{1,4}\b", Match, Pos + 1)) {
	MsgBox, % Match
}

[tmplinshi]

Code: Select all

Haystack := "Re: 091795.0001 this also 055916.0002 and 96190.14 also 69190/11"
Result := RegExMatchAll(Haystack, "\b\d{4,6}[./]\d{1,4}\b")
MsgBox % Result.MaxIndex()
MsgBox % Result.1

RegExMatchAll(ByRef Haystack, NeedleRegEx, SubPat := "", StartPos := 1) {
	arr := []
	while ( pos := RegExMatch(Haystack, NeedleRegEx, match, StartPos) ) {
		arr.push(match%SubPat%)
		StartPos := pos + StrLen(match)
	}
	return arr.MaxIndex() ? arr : ""
}

[SEHot]

Thank you for all the replies. Working now.
No matter how many times I'd read the Help page for RegExMatch I just hadn't clocked that it would only find one match!