regexp linting run in Emacs tree

["Mattias Engdegård" <mattiase@acm.org>]

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Yet another scan of regexp mistakes in elisp files in the Emacs source tree, using relint 1.9.
Minor improvements to the regexp detection in relint has expanded the scope. There may be a few false positives.


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;; -*- compilation -*-
lisp/calendar/diary-lib.el:112:42: In diary-glob-file-regexp-prefix: Escaped non-special character `#' (pos 1)
  "^\\#"
   .^
lisp/cedet/inversion.el:118:25: In call to string-match: Repetition of expression matching an empty string (pos 36)
  "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.?\\([0-9]*\\)?\\s-*\\.?alpha\\([0-9]+\\)?$"
   ............................................^
lisp/org/ob-haskell.el:180:33: In call to re-search-forward: Repetition of expression matching an empty string (pos 40)
  "^\\([ \t]*\\)#\\+begin_src[ \t]haskell*\\(.*\\)?[\r\n]\\([^\000]*?\\)[\r\n][ \t]*#\\+end_src.*"
   ...............................................^
lisp/org/org-capture.el:1688:37: In call to re-search-forward: Duplicated `a-z' inside character alternative (pos 9)
  "%\\(:[-a-za-z]+\\|<\\([^>\n]+\\)>\\|[aAcfFikKlntTuUx]\\)"
   ..........^
lisp/progmodes/cc-mode.el:1400:26: In call to re-search-forward: Branch matches subset of a previous branch (pos 12)
  "\\(\\\\\\(.\\|\n\\|\r\\)\\|[^\\\n\r]\\)*"
   ...................^
lisp/progmodes/cc-mode.el:1508:33: In call to re-search-forward: Branch matches subset of a previous branch (pos 12)
  "\\(\\\\\\(.\\|\n\\|\r\\)\\|[^\\\n\r]\\)*"
   ...................^
lisp/progmodes/fortran.el:1823:36: In call to skip-chars-backward: Duplicated character ` ' (pos 2)
  " \t "
   ...^
lisp/progmodes/fortran.el:1824:65: In call to skip-chars-forward: Duplicated character ` ' (pos 2)
  " \t "
   ...^
lisp/progmodes/gdb-mi.el:2718:33: In call to re-search-forward: Literal `-' not first or last in character alternative (pos 12)
  "\\([[:alnum:]-_]+\\)="
   .............^
lisp/isearch.el:2191:23: In call to string-match-p: Error: Unknown syntax code ‘@’: "\\`\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+\\'"
lisp/isearch.el:2193:30: In call to string-match-p: Error: Unknown syntax code ‘@’: "\\`\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+"
lisp/isearch.el:2195:56: In call to split-string: Error: Unknown syntax code ‘@’: "\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+"
lisp/isearch.el:2196:30: In call to string-match-p: Error: Unknown syntax code ‘@’: "\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+\\'"