code.delx.au - gnu-emacs-elpa/blob - packages/realgud/realgud/lang/posix-shell.el

   1 ;;; Copyright (C) 2010-2011, 2015 Rocky Bernstein <rocky@gnu.org>
   2 ;;;
   3 ;;; Common POSIX-Shell like constants and regular expressions.
   4 ;;; Actually a lot of this is not about POSIX shell as it is about the
   5 ;;; common-ness of bashdb, zshdb, and kshdb. But since those are the
   6 ;;; *only* debuggers I know of for POSIX shells, it's not too much of
   7 ;;; a stretch to think of this as for all "shell".
   8 (eval-when-compile (require 'cl))
   9
  10 (require 'load-relative)
  11 (require-relative-list '("../common/regexp" "../common/loc"
  12                          "../common/track" "../common/send")
  13                        "realgud-")
  14
  15 (defconst realgud-shell-backtrace-loc-pat
  16   (make-realgud-loc-pat
  17    :regexp "^[ \t]+from \\([^:]+\\):\\([0-9]+\\)\\(?: in `.*'\\)?"
  18    :file-group 1
  19    :line-group 2)
  20   "A realgud-loc-pat struct that describes a Shell backtrace (or
  21 traceback) line."  )
  22
  23 (defconst realgud-shell-frame-start-regexp
  24   "\\(?:^\\|\n\\)\\(->\\|##\\)")
  25
  26 (defconst realgud-shell-frame-num-regexp
  27   "\\([0-9]+\\)")
  28
  29 (defconst realgud-shell-frame-file-regexp
  30   "[ \t\n]+\\(?:in\\|from\\) file `\\(.+\\)'")
  31
  32 (defconst realgud-shell-frame-line-regexp
  33   "[ \t\n]+at line \\([0-9]+\\)\\(?:\n\\|$\\)")
  34
  35 (defun realgud-posix-shell-populate-command-keys (&optional map)
  36   "Bind the debugger function key layout used by many debuggers.
  37
  38 \\{realgud-example-map-standard}"
  39   (define-key map (kbd "C-c !b") 'realgud:goto-debugger-backtrace-line)
  40   (define-key map (kbd "C-c !!") 'realgud:goto-lang-backtrace-line)
  41   )
  42
  43
  44 ;; Patterns common to the my POSIX shell debuggers
  45
  46 (defconst realgud:python-trepan-frame-start-regexp
  47   "\\(?:^\\|\n\\)\\(->\\|##\\)")
  48
  49 (defconst realgud:python-trepan-frame-num-regexp
  50   "\\([0-9]+\\)")
  51
  52 ;; Regular expression that describes a bashdb/zshdb location generally shown
  53 ;; before a command prompt.
  54 ;; For example:
  55 ;;   (/etc/init.d/apparmor:35):
  56 (defconst realgud:POSIX-debugger-loc-pat
  57       (make-realgud-loc-pat
  58        :regexp "\\(?:^\\|\n\\)(\\([^:]+\\):\\([0-9]*\\)):\\(?:\n\\(.+\\)\\)?"
  59        :file-group 1
  60        :line-group 2
  61        :text-group 3)
  62       "A realgud-loc-pat struct that describes a POSIX shell debugger
  63       location line.")
  64
  65 ;; Regular expression that describes a debugger "backtrace" command line.
  66 ;; For example:
  67 ;;   ->0 in file `/etc/apparmor/fns' at line 24
  68 ;;   ##1 /etc/apparmor/fns called from file `/etc/init.d/apparmor' at line 35
  69 ;;   ##2 /etc/init.d/apparmor called from file `/usr/bin/zshdb' at line 129
  70 (defconst realgud:POSIX-debugger-backtrace-pat
  71   (make-realgud-loc-pat
  72    :regexp      (concat realgud-shell-frame-start-regexp
  73                         realgud-shell-frame-num-regexp "[ ]?"
  74                         "\\(.*\\)"
  75                         realgud-shell-frame-file-regexp
  76                         "\\(?:" realgud-shell-frame-line-regexp "\\)?"
  77                         )
  78    :num 2
  79    :file-group 4
  80    :line-group 5)
  81   "A realgud-loc-pat struct that describes a Python trepan
  82       backtrace location line." )
  83
  84 ;;  Regular expression that describes a "breakpoint set" line
  85 (defconst realgud:POSIX-debugger-brkpt-set-pat
  86   (make-realgud-loc-pat
  87    :regexp "^Breakpoint \\([0-9]+\\) set in file \\(.+\\), line \\([0-9]+\\).\n"
  88    :num 1
  89    :file-group 2
  90    :line-group 3))
  91
  92 ;; Regular expression that describes a debugger "delete" (breakpoint) response.
  93 ;; For example:
  94 ;;   Removed 1 breakpoint(s).
  95 (defconst realgud:POSIX-debugger-brkpt-del-pat
  96   (make-realgud-loc-pat
  97    :regexp "^Removed \\([0-9]+\\) breakpoint(s).\n"
  98    :num 1))
  99
 100 (defconst realgud:POSIX-debugger-font-lock-keywords
 101   '(
 102     ;; The frame number and first type name, if present.
 103     ;; E.g. ->0 in file `/etc/init.d/apparmor' at line 35
 104     ;;      --^-
 105     ("^\\(->\\|##\\)\\([0-9]+\\) "
 106      (2 realgud-backtrace-number-face))
 107
 108     ;; File name.
 109     ;; E.g. ->0 in file `/etc/init.d/apparmor' at line 35
 110     ;;          ---------^^^^^^^^^^^^^^^^^^^^-
 111     ("[ \t]+\\(in\\|from\\) file `\\(.+\\)'"
 112      (2 realgud-file-name-face))
 113
 114     ;; File name.
 115     ;; E.g. ->0 in file `/etc/init.d/apparmor' at line 35
 116     ;;                                         --------^^
 117     ;; Line number.
 118     ("[ \t]+at line \\([0-9]+\\)$"
 119      (1 realgud-line-number-face))
 120     ;; (trepan-frames-match-current-line
 121     ;;  (0 trepan-frames-current-frame-face append))
 122     ))
 123
 124 (provide-me "realgud-lang-")