https://bugzilla.wikimedia.org/show_bug.cgi?id=27960

           Summary: $.escapeRE shouldn't escape letters and numbers
           Product: MediaWiki
           Version: 1.17
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: Javascript
        AssignedTo: d...@ucsc.edu
        ReportedBy: mybugs.m...@gmail.com
                CC: tpars...@wikimedia.org


Currently

$.escapeRE('ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890')

is returning

'\A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z\1\2\3\4\5\6\7\8\9\0'

but it should not escape any letters.

I think it is necessary to escape the '-' in the regex:

/([\\{}()|.?*+-\^$\[\]])/g

because it is probably being understood as the interval from '+' to '\'.

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