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  1. Qt
  2. QTBUG-81220

QRegularExpression: add docs note about how "-" in [] is treated differently than with QRegExp

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    • Icon: Bug Bug
    • Resolution: Won't Do
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    • 5.14
    • Core: Other
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      With QRegExp patterns like [\w-9] were valid, IIUC, there weren't treated as a range of characters and QRegExp didn't complain about it.

      But with QRegularExpression such a pattern is invalid; so with QRegularExpression:

      • To match a literal "-" in [] it has to be right after [, escaped or right before ]
      • To match a range of characters, it has be used correctly, and QRegularExpression isn't as forgiving as QRegExp is

      I suggest adding a porting note to the docs about this issue. (And sorry if I got anything wrong up there ).

      Thanks in advance.

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            peppe Giuseppe D'Angelo
            ahmad.samir Ahmad Samir
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