How to split a string until nth space?

kahlenberg

Hi,
I have following string:

QString str = "DRIVER_STAT.LEG1_LO_ERR         00000004	00000000	00000001	00000000	RO	LEG1 Driver Low Error";

There are spaces and tabs between words and there are always 7 fields. I want to save them to a QStrginList but not affecting the last sentence, i. e. the desctiption "LEG1 Driver Low Error" must be one string. It shoult look like this:

["DRIVER_STAT.LEG1_LO_ERR"], ["00000004"], ["00000000"], ["00000001"], ["00000000"], ["RO"], ["LEG1 Driver Low Error"]

How can I do that? What is the correct Regex for that?
Thanks.

mrjj

Hi
Are any of the fields fixed size?

Also ["LEG1 Driver Low Error"]

Can contain both space and/or tabs?

So we do not know what separator is used - it can be mixed?

kahlenberg

Hi,
Thanks for reply.
To explain more clearly, the seperator is normaly tab character except the first word:

"DRIVER_STAT.LEG1_LO_ERR(\s+)00000004(\t+)00000000(\t+)00000001(\t+)00000000(\t+)RO(\t+)LEG1(\s+)Driver(\s+)Low(\s+)Error"

the_

@kahlenberg said in How to split a string until nth space?:

"DRIVER_STAT.LEG1_LO_ERR(\s+)00000004(\t+)00000000(\t+)00000001(\t+)00000000(\t+)RO(\t+)LEG1(\s+)Driver(\s+)Low(\s+)Error"

Means, that the after the first group the separators could be any number of whitespace characters or blanks only? As far as I remember \s matches any whitespace char

A space character
A tab character
A carriage return character
A new line character
A vertical tab character
A form feed character

kahlenberg

Sory, I meant only one or more space character with \s+ and only one or more tab character with \t+. There are no \r, \n characters, There are only spaces or tabs.

Gerd

Hi,
you can try this:

   QStringList l1 = str.split('\t', QString::SkipEmptyParts);
   QStringList l2 = l1.takeFirst().split(' ', QString::SkipEmptyParts);
   l2.append(l1);

kahlenberg

Wow!
Thank you very much. It works!

the_

@kahlenberg

You could als try with a RegularExpression like this:

str = str.replace(QRegularExpression("[ ]+(.*$)"),"\t\\1").replace(QRegularExpression("[ ]+")," ")
QStringList list = str.split(QRegularExpression("\t+"));

This will also remove multiple spaces in the last text block

kshegunov

QStringList list = str.split(QRegularExpression("\s+(?=[0-9]|RO|LEG1)"));