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  1. JDK
  2. JDK-8230365

Pattern for a control-char matches non-control characters

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    Details

    • Type: Bug
    • Status: Open
    • Priority: P3
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: core-libs
    • Labels:
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      Description

      Regexp pattern allow \\cx sequence to specify control-x character.
      Current implementation has two issues:

      1) It allows x to be any character, including non-ASCII and non-printable ones;
      For example, it is possible to have "\\c ", which will match "`".

      2) It allows to construct a regexp that will match non-control characters;
      For example "\\c`" will match " " (and the space char is not control-char).

      Another thing that should also be reviewed is that x is currently case-sensitive.
      For reference, perl treats \cA and \ca equally, and both regexps match ^A control-char.

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              Assignee:
              igerasim Ivan Gerasimov
              Reporter:
              igerasim Ivan Gerasimov
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                Dates

                Created:
                Updated: