[MacPorts] #69585: Special regex characters are not escaped in path depspecs

[MacPorts]

#69585: Special regex characters are not escaped in path depspecs
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  Reporter:  barracuda156                        |      Owner:  ryandesign
      Type:  defect                              |     Status:  accepted
  Priority:  Normal                              |  Milestone:  MacPorts
                                                 |  Future
 Component:  base                                |    Version:  2.9.3
Resolution:                                      |   Keywords:  haspatch
      Port:  gtk2, gtk2-devel, gtk3, gtk3-devel  |
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Comment (by jmroot):

 Replying to [comment:21 ryandesign]:
 > MacPorts  takes the middle part of the depspec
 `path:lib/pkgconfig/gtk+-3.0.pc:gtk3`—`lib/pkgconfig/gtk+-3.0.pc`—and
 turns the last path component—`gtk+-3.0.pc`—into a regular expression.
 Specifically, it anchors it at the beginning (`^`) and end (`$`) but other
 than that it is copied directly into the regular expression without
 escaping (even though the MacPorts Guide says it's just a file path).

 Note that the code has talked about "depspec regexes" for a very long
 time, see e.g. r2163. But I agree it's probably better to treat them as
 simple filenames.

-- 
Ticket URL: <https://trac.macports.org/ticket/69585#comment:26>
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