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I would like to write simple regexp with Qt QRegExp

I want to fetch all substring of a Qstring with table(i, d), without the quotes, with i "hard written" and d representing any integer. And then using cap, to retrieve value for d. I propose

 qREgExp reg ( "table(i,\\s*(\\d+)\\s*)") ;

I cherrish the hope that then

 reg.cap(2)

gives me the d in question here.

How would you put it?

Ωmega
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kiriloff
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1 Answers1

2

Try to use

qREgExp reg ( "\\btable\\(i,\\s*(\\d+)\\s*\\)" );

with

reg.cap(1)
Ωmega
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    Exactly. The parenthesis on the table "call" aren't escaped, and then they are parsed as operators of the regular expression. Escaping them makes them part of the text to match. – Spidey Oct 17 '12 at 13:19
  • @Spidey thanks!! then `"\\btable\\(i,\\s*(\\.+)\\s*\\)"` should match data(i,1), isnt it ? it is not. – kiriloff Oct 17 '12 at 14:02
  • @Spidey maybe this is better `"\\btable\\(i,\\s*(.+)\\s*\\)"` !? this is matching, but i cannot retrieve the . with cap – kiriloff Oct 17 '12 at 14:03
  • Try "\\btable\\(i,([^\\)]+)\\)". – Spidey Oct 17 '12 at 15:40