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2
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1 ;;; python-mode.el --- Major mode for editing Python programs
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2
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3 ;; Copyright (C) 1992,1993,1994 Tim Peters
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4
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5 ;; Author: 1995-1996 Barry A. Warsaw
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6 ;; 1992-1994 Tim Peters
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7 ;; Maintainer: python-mode@python.org
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8 ;; Created: Feb 1992
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9 ;; Version: 2.67
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10 ;; Last Modified: 1996/08/01 20:11:51
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11 ;; Keywords: python languages oop
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12
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13 ;; This software is provided as-is, without express or implied
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14 ;; warranty. Permission to use, copy, modify, distribute or sell this
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15 ;; software, without fee, for any purpose and by any individual or
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16 ;; organization, is hereby granted, provided that the above copyright
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17 ;; notice and this paragraph appear in all copies.
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18
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19 ;;; Commentary:
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20 ;;
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21
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22 ;; This is a major mode for editing Python programs. It was developed
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23 ;; by Tim Peters after an original idea by Michael A. Guravage. Tim
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24 ;; left the net for a while and in the interim, Barry Warsaw has
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25 ;; undertaken maintenance of the mode.
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26
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27 ;; At some point this mode will undergo a rewrite to bring it more in
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28 ;; line with GNU Emacs Lisp coding standards, and to wax all the Emacs
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29 ;; 18 support. But all in all, the mode works exceedingly well, and
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30 ;; I've simply been tweaking it as I go along. Ain't it wonderful
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31 ;; that Python has a much more sane syntax than C? (or <shudder> C++?!
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32 ;; :-). I can say that; I maintain cc-mode!
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33
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34 ;; The following statements, placed in your .emacs file or
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35 ;; site-init.el, will cause this file to be autoloaded, and
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36 ;; python-mode invoked, when visiting .py files (assuming this file is
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37 ;; in your load-path):
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38 ;;
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39 ;; (autoload 'python-mode "python-mode" "Python editing mode." t)
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40 ;; (setq auto-mode-alist
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41 ;; (cons '("\\.py$" . python-mode) auto-mode-alist))
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42 ;;
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43 ;; If you want font-lock support for Python source code (a.k.a. syntax
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44 ;; coloring, highlighting), add this to your .emacs file:
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45 ;;
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46 ;; (add-hook 'python-mode-hook 'turn-on-font-lock)
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47 ;;
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48 ;; But you better be sure you're version of Emacs supports
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49 ;; font-lock-mode! As of this writing, the latest Emacs and XEmacs
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50 ;; 19's do.
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51
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52 ;; Here's a brief list of recent additions/improvements/changes:
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53 ;;
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54 ;; - Wrapping and indentation within triple quote strings now works.
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55 ;; - `Standard' bug reporting mechanism (use C-c C-b)
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56 ;; - py-mark-block was moved to C-c C-m
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57 ;; - C-c C-v shows you the python-mode version
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58 ;; - a basic python-font-lock-keywords has been added for (X)Emacs 19
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59 ;; - proper interaction with pending-del and del-sel modes.
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60 ;; - Better support for outdenting: py-electric-colon (:) and
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61 ;; py-indent-line (TAB) improvements; one level of outdentation
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62 ;; added after a return, raise, break, or continue statement
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63 ;; - New py-electric-colon (:) command for improved outdenting Also
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64 ;; py-indent-line (TAB) should handle outdented lines better
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65 ;; - improved (I think) C-c > and C-c <
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66 ;; - py-(forward|backward)-into-nomenclature, not bound, but useful on
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67 ;; M-f and M-b respectively.
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68 ;; - integration with imenu by Perry A. Stoll <stoll@atr-sw.atr.co.jp>
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69 ;; - py-indent-offset now defaults to 4
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70 ;; - new variable py-honor-comment-indentation
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71 ;; - comment-region bound to C-c #
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72 ;; - py-delete-char obeys numeric arguments
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73 ;; - Small modification to rule for "indenting comment lines", such
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74 ;; lines must now also be indented less than or equal to the
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75 ;; indentation of the previous statement.
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76
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77 ;; Here's a brief to do list:
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78 ;;
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79 ;; - Better integration with gud-mode for debugging.
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80 ;; - Rewrite according to GNU Emacs Lisp standards.
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81 ;; - possibly force indent-tabs-mode == nil, and add a
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82 ;; write-file-hooks that runs untabify on the whole buffer (to work
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83 ;; around potential tab/space mismatch problems). In practice this
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84 ;; hasn't been a problem... yet.
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85 ;; - have py-execute-region on indented code act as if the region is
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86 ;; left justified. Avoids syntax errors.
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87
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88 ;; If you can think of more things you'd like to see, drop me a line.
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89 ;; If you want to report bugs, use py-submit-bug-report (C-c C-b).
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90 ;;
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91 ;; Note that I only test things on XEmacs 19 and to some degree on
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92 ;; Emacs 19. If you port stuff to FSF Emacs 19, or Emacs 18, please
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93 ;; send me your patches. Byte compiler complaints can probably be
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94 ;; safely ignored.
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95
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96 ;;; Code:
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97
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98
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99 ;; user definable variables
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100 ;; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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101
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102 (defvar py-python-command "python"
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103 "*Shell command used to start Python interpreter.")
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104
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105 (defvar py-indent-offset 4
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106 "*Indentation increment.
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107 Note that `\\[py-guess-indent-offset]' can usually guess a good value
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108 when you're editing someone else's Python code.")
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109
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110 (defvar py-align-multiline-strings-p t
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111 "*Flag describing how multiline triple quoted strings are aligned.
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112 When this flag is non-nil, continuation lines are lined up under the
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113 preceding line's indentation. When this flag is nil, continuation
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114 lines are aligned to column zero.")
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115
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116 (defvar py-block-comment-prefix "## "
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117 "*String used by \\[comment-region] to comment out a block of code.
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118 This should follow the convention for non-indenting comment lines so
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119 that the indentation commands won't get confused (i.e., the string
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120 should be of the form `#x...' where `x' is not a blank or a tab, and
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121 `...' is arbitrary).")
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122
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123 (defvar py-honor-comment-indentation t
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124 "*Controls how comment lines influence subsequent indentation.
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125
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126 When nil, all comment lines are skipped for indentation purposes, and
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127 in Emacs 19, a faster algorithm is used.
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128
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129 When t, lines that begin with a single `#' are a hint to subsequent
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130 line indentation. If the previous line is such a comment line (as
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131 opposed to one that starts with `py-block-comment-prefix'), then it's
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132 indentation is used as a hint for this line's indentation. Lines that
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133 begin with `py-block-comment-prefix' are ignored for indentation
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134 purposes.
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135
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136 When not nil or t, comment lines that begin with a `#' are used as
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137 indentation hints, unless the comment character is in column zero.")
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138
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139 (defvar py-scroll-process-buffer t
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140 "*Scroll Python process buffer as output arrives.
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141 If nil, the Python process buffer acts, with respect to scrolling, like
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142 Shell-mode buffers normally act. This is surprisingly complicated and
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143 so won't be explained here; in fact, you can't get the whole story
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144 without studying the Emacs C code.
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145
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146 If non-nil, the behavior is different in two respects (which are
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147 slightly inaccurate in the interest of brevity):
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148
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149 - If the buffer is in a window, and you left point at its end, the
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150 window will scroll as new output arrives, and point will move to the
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151 buffer's end, even if the window is not the selected window (that
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152 being the one the cursor is in). The usual behavior for shell-mode
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153 windows is not to scroll, and to leave point where it was, if the
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154 buffer is in a window other than the selected window.
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155
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156 - If the buffer is not visible in any window, and you left point at
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157 its end, the buffer will be popped into a window as soon as more
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158 output arrives. This is handy if you have a long-running
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159 computation and don't want to tie up screen area waiting for the
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160 output. The usual behavior for a shell-mode buffer is to stay
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161 invisible until you explicitly visit it.
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162
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163 Note the `and if you left point at its end' clauses in both of the
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164 above: you can `turn off' the special behaviors while output is in
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165 progress, by visiting the Python buffer and moving point to anywhere
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166 besides the end. Then the buffer won't scroll, point will remain where
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167 you leave it, and if you hide the buffer it will stay hidden until you
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168 visit it again. You can enable and disable the special behaviors as
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169 often as you like, while output is in progress, by (respectively) moving
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170 point to, or away from, the end of the buffer.
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171
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172 Warning: If you expect a large amount of output, you'll probably be
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173 happier setting this option to nil.
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174
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175 Obscure: `End of buffer' above should really say `at or beyond the
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176 process mark', but if you know what that means you didn't need to be
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177 told <grin>.")
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178
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179 (defvar py-temp-directory
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180 (let ((ok '(lambda (x)
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181 (and x
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182 (setq x (expand-file-name x)) ; always true
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183 (file-directory-p x)
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184 (file-writable-p x)
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185 x))))
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186 (or (funcall ok (getenv "TMPDIR"))
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187 (funcall ok "/usr/tmp")
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188 (funcall ok "/tmp")
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189 (funcall ok ".")
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190 (error
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191 "Couldn't find a usable temp directory -- set py-temp-directory")))
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192 "*Directory used for temp files created by a *Python* process.
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193 By default, the first directory from this list that exists and that you
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194 can write into: the value (if any) of the environment variable TMPDIR,
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195 /usr/tmp, /tmp, or the current directory.")
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196
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197 (defvar py-beep-if-tab-change t
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198 "*Ring the bell if tab-width is changed.
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199 If a comment of the form
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200
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201 \t# vi:set tabsize=<number>:
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202
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203 is found before the first code line when the file is entered, and the
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204 current value of (the general Emacs variable) `tab-width' does not
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205 equal <number>, `tab-width' is set to <number>, a message saying so is
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206 displayed in the echo area, and if `py-beep-if-tab-change' is non-nil
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207 the Emacs bell is also rung as a warning.")
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208
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209 (defconst python-font-lock-keywords
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210 (let* ((keywords '("access" "and" "break" "class"
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211 "continue" "def" "del" "elif"
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212 "else:" "except" "except:" "exec"
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213 "finally:" "for" "from" "global"
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214 "if" "import" "in" "is"
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215 "lambda" "not" "or" "pass"
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216 "print" "raise" "return" "try:"
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217 "while"
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218 ))
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219 (kwregex (mapconcat 'identity keywords "\\|")))
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220 (list
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221 ;; keywords not at beginning of line
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222 (cons (concat "\\s-\\(" kwregex "\\)[ \n\t(]") 1)
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223 ;; keywords at beginning of line. i don't think regexps are
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224 ;; powerful enough to handle these two cases in one regexp.
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225 ;; prove me wrong!
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226 (cons (concat "^\\(" kwregex "\\)[ \n\t(]") 1)
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227 ;; classes
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228 '("\\bclass[ \t]+\\([a-zA-Z_]+[a-zA-Z0-9_]*\\)"
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229 1 font-lock-type-face)
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230 ;; functions
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231 '("\\bdef[ \t]+\\([a-zA-Z_]+[a-zA-Z0-9_]*\\)"
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232 1 font-lock-function-name-face)
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233 ))
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234 "Additional expressions to highlight in Python mode.")
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235
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236 (defvar imenu-example--python-show-method-args-p nil
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237 "*Controls echoing of arguments of functions & methods in the imenu buffer.
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238 When non-nil, arguments are printed.")
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239
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240
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241
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242 ;; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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243 ;; NO USER DEFINABLE VARIABLES BEYOND THIS POINT
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244
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245 (make-variable-buffer-local 'py-indent-offset)
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246
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247 ;; Differentiate between Emacs 18, Lucid Emacs, and Emacs 19. This
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248 ;; seems to be the standard way of checking this.
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249 ;; BAW - This is *not* the right solution. When at all possible,
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250 ;; instead of testing for the version of Emacs, use feature tests.
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251
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252 (setq py-this-is-lucid-emacs-p (string-match "Lucid\\|XEmacs" emacs-version))
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253 (setq py-this-is-emacs-19-p
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254 (and
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255 (not py-this-is-lucid-emacs-p)
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256 (string-match "^19\\." emacs-version)))
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257
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258 ;; have to bind py-file-queue before installing the kill-emacs hook
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259 (defvar py-file-queue nil
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260 "Queue of Python temp files awaiting execution.
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261 Currently-active file is at the head of the list.")
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262
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263 ;; define a mode-specific abbrev table for those who use such things
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264 (defvar python-mode-abbrev-table nil
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265 "Abbrev table in use in `python-mode' buffers.")
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266 (define-abbrev-table 'python-mode-abbrev-table nil)
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267
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268 (defvar python-mode-hook nil
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269 "*Hook called by `python-mode'.")
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270
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271 ;; in previous version of python-mode.el, the hook was incorrectly
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272 ;; called py-mode-hook, and was not defvar'd. deprecate its use.
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273 (and (fboundp 'make-obsolete-variable)
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274 (make-obsolete-variable 'py-mode-hook 'python-mode-hook))
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275
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276 (defvar py-mode-map ()
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277 "Keymap used in `python-mode' buffers.")
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278
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279 (if py-mode-map
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280 ()
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281 (setq py-mode-map (make-sparse-keymap))
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282
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283 ;; shadow global bindings for newline-and-indent w/ the py- version.
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284 ;; BAW - this is extremely bad form, but I'm not going to change it
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285 ;; for now.
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286 (mapcar (function (lambda (key)
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287 (define-key
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288 py-mode-map key 'py-newline-and-indent)))
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289 (where-is-internal 'newline-and-indent))
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290
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291 ;; BAW - you could do it this way, but its not considered proper
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292 ;; major-mode form.
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293 (mapcar (function
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294 (lambda (x)
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295 (define-key py-mode-map (car x) (cdr x))))
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296 '((":" . py-electric-colon)
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297 ("\C-c\C-c" . py-execute-buffer)
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298 ("\C-c|" . py-execute-region)
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299 ("\C-c!" . py-shell)
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300 ("\177" . py-delete-char)
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301 ("\n" . py-newline-and-indent)
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302 ("\C-c:" . py-guess-indent-offset)
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303 ("\C-c\t" . py-indent-region)
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304 ("\C-c\C-l" . py-shift-region-left)
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305 ("\C-c\C-r" . py-shift-region-right)
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306 ("\C-c<" . py-shift-region-left)
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307 ("\C-c>" . py-shift-region-right)
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308 ("\C-c\C-n" . py-next-statement)
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309 ("\C-c\C-p" . py-previous-statement)
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310 ("\C-c\C-u" . py-goto-block-up)
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311 ("\C-c\C-m" . py-mark-block)
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312 ("\C-c#" . py-comment-region)
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313 ("\C-c?" . py-describe-mode)
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314 ("\C-c\C-hm" . py-describe-mode)
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315 ("\e\C-a" . beginning-of-python-def-or-class)
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316 ("\e\C-e" . end-of-python-def-or-class)
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317 ( "\e\C-h" . mark-python-def-or-class)))
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318 ;; should do all keybindings this way
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319 (define-key py-mode-map "\C-c\C-b" 'py-submit-bug-report)
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320 (define-key py-mode-map "\C-c\C-v" 'py-version)
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321 )
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322
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323 (defvar py-mode-syntax-table nil
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324 "Syntax table used in `python-mode' buffers.")
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325
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326 (if py-mode-syntax-table
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327 ()
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328 (setq py-mode-syntax-table (make-syntax-table))
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329 ;; BAW - again, blech.
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330 (mapcar (function
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331 (lambda (x) (modify-syntax-entry
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332 (car x) (cdr x) py-mode-syntax-table)))
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333 '(( ?\( . "()" ) ( ?\) . ")(" )
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334 ( ?\[ . "(]" ) ( ?\] . ")[" )
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335 ( ?\{ . "(}" ) ( ?\} . "){" )
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336 ;; fix operator symbols misassigned in the std table
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337 ( ?\$ . "." ) ( ?\% . "." ) ( ?\& . "." )
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338 ( ?\* . "." ) ( ?\+ . "." ) ( ?\- . "." )
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339 ( ?\/ . "." ) ( ?\< . "." ) ( ?\= . "." )
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340 ( ?\> . "." ) ( ?\| . "." )
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341 ;; for historical reasons, underscore is word class
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342 ;; instead of symbol class. it should be symbol class,
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343 ;; but if you're tempted to change it, try binding M-f and
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344 ;; M-b to py-forward-into-nomenclature and
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345 ;; py-backward-into-nomenclature instead. -baw
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346 ( ?\_ . "w" ) ; underscore is legit in words
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347 ( ?\' . "\"") ; single quote is string quote
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348 ( ?\" . "\"" ) ; double quote is string quote too
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349 ( ?\` . "$") ; backquote is open and close paren
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350 ( ?\# . "<") ; hash starts comment
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351 ( ?\n . ">")))) ; newline ends comment
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352
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353 (defconst py-stringlit-re
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354 (concat
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355 "'\\([^'\n\\]\\|\\\\.\\)*'" ; single-quoted
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356 "\\|" ; or
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357 "\"\\([^\"\n\\]\\|\\\\.\\)*\"") ; double-quoted
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358 "Regexp matching a Python string literal.")
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359
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360 ;; this is tricky because a trailing backslash does not mean
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361 ;; continuation if it's in a comment
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362 (defconst py-continued-re
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363 (concat
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364 "\\(" "[^#'\"\n\\]" "\\|" py-stringlit-re "\\)*"
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365 "\\\\$")
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366 "Regexp matching Python lines that are continued via backslash.")
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367
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368 (defconst py-blank-or-comment-re "[ \t]*\\($\\|#\\)"
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|
369 "Regexp matching blank or comment lines.")
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370
|
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371 (defconst py-outdent-re
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372 (concat "\\(" (mapconcat 'identity
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373 '("else:"
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374 "except\\(\\s +.*\\)?:"
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375 "finally:"
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376 "elif\\s +.*:")
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377 "\\|")
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378 "\\)")
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379 "Regexp matching clauses to be outdented one level.")
|
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380
|
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|
381 (defconst py-no-outdent-re
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382 (concat "\\(" (mapconcat 'identity
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383 '("try:"
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384 "except\\(\\s +.*\\)?:"
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385 "while\\s +.*:"
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386 "for\\s +.*:"
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387 "if\\s +.*:"
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388 "elif\\s +.*:")
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389 "\\|")
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390 "\\)")
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391 "Regexp matching lines to not outdent after.")
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392
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393
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394 ;; Menu definitions, only relevent if you have the easymenu.el package
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395 ;; (standard in the latest Emacs 19 and XEmacs 19 distributions).
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396 (if (condition-case nil
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397 (require 'easymenu)
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398 (error nil))
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399 (easy-menu-define
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400 py-menu py-mode-map "Python Mode menu"
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401 '("Python"
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|
402 ["Comment Out Region" comment-region (mark)]
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|
403 ["Uncomment Region" (comment-region (point) (mark) '(4)) (mark)]
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404 "-"
|
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|
405 ["Mark current block" py-mark-block t]
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|
406 ["Mark current def" mark-python-def-or-class t]
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|
|
407 ["Mark current class" (mark-python-def-or-class t) t]
|
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|
408 "-"
|
|
|
409 ["Shift region left" py-shift-region-left (mark)]
|
|
|
410 ["Shift region right" py-shift-region-right (mark)]
|
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|
411 "-"
|
|
|
412 ["Execute buffer" py-execute-buffer t]
|
|
|
413 ["Execute region" py-execute-region (mark)]
|
|
|
414 ["Start interpreter..." py-shell t]
|
|
|
415 "-"
|
|
|
416 ["Go to start of block" py-goto-block-up t]
|
|
|
417 ["Go to start of class" (beginning-of-python-def-or-class t) t]
|
|
|
418 ["Move to end of class" (end-of-python-def-or-class t) t]
|
|
|
419 ["Move to start of def" beginning-of-python-def-or-class t]
|
|
|
420 ["Move to end of def" end-of-python-def-or-class t]
|
|
|
421 "-"
|
|
|
422 ["Describe mode" py-describe-mode t]
|
|
|
423 )))
|
|
|
424
|
|
|
425
|
|
|
426
|
|
|
427 ;; imenu definitions, courtesy of Perry A. Stoll <stoll@atr-sw.atr.co.jp>
|
|
|
428 (defvar imenu-example--python-class-regexp
|
|
|
429 (concat ; <<classes>>
|
|
|
430 "\\(" ;
|
|
|
431 "^[ \t]*" ; newline and maybe whitespace
|
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|
432 "\\(class[ \t]+[a-zA-Z0-9_]+\\)" ; class name
|
|
|
433 ; possibly multiple superclasses
|
|
|
434 "\\([ \t]*\\((\\([a-zA-Z0-9_, \t\n]\\)*)\\)?\\)"
|
|
|
435 "[ \t]*:" ; and the final :
|
|
|
436 "\\)" ; >>classes<<
|
|
|
437 )
|
|
|
438 "Regexp for Python classes for use with the imenu package."
|
|
|
439 )
|
|
|
440
|
|
|
441 (defvar imenu-example--python-method-regexp
|
|
|
442 (concat ; <<methods and functions>>
|
|
|
443 "\\(" ;
|
|
|
444 "^[ \t]*" ; new line and maybe whitespace
|
|
|
445 "\\(def[ \t]+" ; function definitions start with def
|
|
|
446 "\\([a-zA-Z0-9_]+\\)" ; name is here
|
|
|
447 ; function arguments...
|
|
|
448 "[ \t]*(\\([a-zA-Z0-9_=,\* \t\n]*\\))"
|
|
|
449 "\\)" ; end of def
|
|
|
450 "[ \t]*:" ; and then the :
|
|
|
451 "\\)" ; >>methods and functions<<
|
|
|
452 )
|
|
|
453 "Regexp for Python methods/functions for use with the imenu package."
|
|
|
454 )
|
|
|
455
|
|
|
456 (defvar imenu-example--python-method-no-arg-parens '(2 8)
|
|
|
457 "Indicies into groups of the Python regexp for use with imenu.
|
|
|
458
|
|
|
459 Using these values will result in smaller imenu lists, as arguments to
|
|
|
460 functions are not listed.
|
|
|
461
|
|
|
462 See the variable `imenu-example--python-show-method-args-p' for more
|
|
|
463 information.")
|
|
|
464
|
|
|
465 (defvar imenu-example--python-method-arg-parens '(2 7)
|
|
|
466 "Indicies into groups of the Python regexp for use with imenu.
|
|
|
467 Using these values will result in large imenu lists, as arguments to
|
|
|
468 functions are listed.
|
|
|
469
|
|
|
470 See the variable `imenu-example--python-show-method-args-p' for more
|
|
|
471 information.")
|
|
|
472
|
|
|
473 ;; Note that in this format, this variable can still be used with the
|
|
|
474 ;; imenu--generic-function. Otherwise, there is no real reason to have
|
|
|
475 ;; it.
|
|
|
476 (defvar imenu-example--generic-python-expression
|
|
|
477 (cons
|
|
|
478 (concat
|
|
|
479 imenu-example--python-class-regexp
|
|
|
480 "\\|" ; or...
|
|
|
481 imenu-example--python-method-regexp
|
|
|
482 )
|
|
|
483 imenu-example--python-method-no-arg-parens)
|
|
|
484 "Generic Python expression which may be used directly with imenu.
|
|
|
485 Used by setting the variable `imenu-generic-expression' to this value.
|
|
|
486 Also, see the function \\[imenu-example--create-python-index] for a
|
|
|
487 better alternative for finding the index.")
|
|
|
488
|
|
|
489 ;; These next two variables are used when searching for the python
|
|
|
490 ;; class/definitions. Just saving some time in accessing the
|
|
|
491 ;; generic-python-expression, really.
|
|
|
492 (defvar imenu-example--python-generic-regexp)
|
|
|
493 (defvar imenu-example--python-generic-parens)
|
|
|
494
|
|
|
495
|
|
|
496 ;;;###autoload
|
|
|
497 (eval-when-compile
|
|
|
498 ;; Imenu isn't used in XEmacs, so just ignore load errors
|
|
|
499 (condition-case ()
|
|
|
500 (progn
|
|
|
501 (require 'cl)
|
|
|
502 (require 'imenu))
|
|
|
503 (error nil)))
|
|
|
504
|
|
|
505 (defun imenu-example--create-python-index ()
|
|
|
506 "Python interface function for imenu package.
|
|
|
507 Finds all python classes and functions/methods. Calls function
|
|
|
508 \\[imenu-example--create-python-index-engine]. See that function for
|
|
|
509 the details of how this works."
|
|
|
510 (setq imenu-example--python-generic-regexp
|
|
|
511 (car imenu-example--generic-python-expression))
|
|
|
512 (setq imenu-example--python-generic-parens
|
|
|
513 (if imenu-example--python-show-method-args-p
|
|
|
514 imenu-example--python-method-arg-parens
|
|
|
515 imenu-example--python-method-no-arg-parens))
|
|
|
516 (goto-char (point-min))
|
|
|
517 (imenu-example--create-python-index-engine nil))
|
|
|
518
|
|
|
519 (defun imenu-example--create-python-index-engine (&optional start-indent)
|
|
|
520 "Function for finding imenu definitions in Python.
|
|
|
521
|
|
|
522 Finds all definitions (classes, methods, or functions) in a Python
|
|
|
523 file for the imenu package.
|
|
|
524
|
|
|
525 Returns a possibly nested alist of the form
|
|
|
526
|
|
|
527 (INDEX-NAME . INDEX-POSITION)
|
|
|
528
|
|
|
529 The second element of the alist may be an alist, producing a nested
|
|
|
530 list as in
|
|
|
531
|
|
|
532 (INDEX-NAME . INDEX-ALIST)
|
|
|
533
|
|
|
534 This function should not be called directly, as it calls itself
|
|
|
535 recursively and requires some setup. Rather this is the engine for
|
|
|
536 the function \\[imenu-example--create-python-index].
|
|
|
537
|
|
|
538 It works recursively by looking for all definitions at the current
|
|
|
539 indention level. When it finds one, it adds it to the alist. If it
|
|
|
540 finds a definition at a greater indentation level, it removes the
|
|
|
541 previous definition from the alist. In it's place it adds all
|
|
|
542 definitions found at the next indentation level. When it finds a
|
|
|
543 definition that is less indented then the current level, it retuns the
|
|
|
544 alist it has created thus far.
|
|
|
545
|
|
|
546 The optional argument START-INDENT indicates the starting indentation
|
|
|
547 at which to continue looking for Python classes, methods, or
|
|
|
548 functions. If this is not supplied, the function uses the indentation
|
|
|
549 of the first definition found."
|
|
|
550 (let ((index-alist '())
|
|
|
551 (sub-method-alist '())
|
|
|
552 looking-p
|
|
|
553 def-name prev-name
|
|
|
554 cur-indent def-pos
|
|
|
555 (class-paren (first imenu-example--python-generic-parens))
|
|
|
556 (def-paren (second imenu-example--python-generic-parens)))
|
|
|
557 (setq looking-p
|
|
|
558 (re-search-forward imenu-example--python-generic-regexp
|
|
|
559 (point-max) t))
|
|
|
560 (while looking-p
|
|
|
561 (save-excursion
|
|
|
562 ;; used to set def-name to this value but generic-extract-name is
|
|
|
563 ;; new to imenu-1.14. this way it still works with imenu-1.11
|
|
|
564 ;;(imenu--generic-extract-name imenu-example--python-generic-parens))
|
|
|
565 (let ((cur-paren (if (match-beginning class-paren)
|
|
|
566 class-paren def-paren)))
|
|
|
567 (setq def-name
|
|
|
568 (buffer-substring (match-beginning cur-paren)
|
|
|
569 (match-end cur-paren))))
|
|
|
570 (beginning-of-line)
|
|
|
571 (setq cur-indent (current-indentation)))
|
|
|
572
|
|
|
573 ;; HACK: want to go to the next correct definition location. we
|
|
|
574 ;; explicitly list them here. would be better to have them in a
|
|
|
575 ;; list.
|
|
|
576 (setq def-pos
|
|
|
577 (or (match-beginning class-paren)
|
|
|
578 (match-beginning def-paren)))
|
|
|
579
|
|
|
580 ;; if we don't have a starting indent level, take this one
|
|
|
581 (or start-indent
|
|
|
582 (setq start-indent cur-indent))
|
|
|
583
|
|
|
584 ;; if we don't have class name yet, take this one
|
|
|
585 (or prev-name
|
|
|
586 (setq prev-name def-name))
|
|
|
587
|
|
|
588 ;; what level is the next definition on? must be same, deeper
|
|
|
589 ;; or shallower indentation
|
|
|
590 (cond
|
|
|
591 ;; at the same indent level, add it to the list...
|
|
|
592 ((= start-indent cur-indent)
|
|
|
593
|
|
|
594 ;; if we don't have push, use the following...
|
|
|
595 ;;(setf index-alist (cons (cons def-name def-pos) index-alist))
|
|
|
596 (push (cons def-name def-pos) index-alist))
|
|
|
597
|
|
|
598 ;; deeper indented expression, recur...
|
|
|
599 ((< start-indent cur-indent)
|
|
|
600
|
|
|
601 ;; the point is currently on the expression we're supposed to
|
|
|
602 ;; start on, so go back to the last expression. The recursive
|
|
|
603 ;; call will find this place again and add it to the correct
|
|
|
604 ;; list
|
|
|
605 (re-search-backward imenu-example--python-generic-regexp
|
|
|
606 (point-min) 'move)
|
|
|
607 (setq sub-method-alist (imenu-example--create-python-index-engine
|
|
|
608 cur-indent))
|
|
|
609
|
|
|
610 (if sub-method-alist
|
|
|
611 ;; we put the last element on the index-alist on the start
|
|
|
612 ;; of the submethod alist so the user can still get to it.
|
|
|
613 (let ((save-elmt (pop index-alist)))
|
|
|
614 (push (cons (imenu-create-submenu-name prev-name)
|
|
|
615 (cons save-elmt sub-method-alist))
|
|
|
616 index-alist))))
|
|
|
617
|
|
|
618 ;; found less indented expression, we're done.
|
|
|
619 (t
|
|
|
620 (setq looking-p nil)
|
|
|
621 (re-search-backward imenu-example--python-generic-regexp
|
|
|
622 (point-min) t)))
|
|
|
623 (setq prev-name def-name)
|
|
|
624 (and looking-p
|
|
|
625 (setq looking-p
|
|
|
626 (re-search-forward imenu-example--python-generic-regexp
|
|
|
627 (point-max) 'move))))
|
|
|
628 (nreverse index-alist)))
|
|
|
629
|
|
|
630
|
|
|
631 ;;;###autoload
|
|
|
632 (defun python-mode ()
|
|
|
633 "Major mode for editing Python files.
|
|
|
634 To submit a problem report, enter `\\[py-submit-bug-report]' from a
|
|
|
635 `python-mode' buffer. Do `\\[py-describe-mode]' for detailed
|
|
|
636 documentation. To see what version of `python-mode' you are running,
|
|
|
637 enter `\\[py-version]'.
|
|
|
638
|
|
|
639 This mode knows about Python indentation, tokens, comments and
|
|
|
640 continuation lines. Paragraphs are separated by blank lines only.
|
|
|
641
|
|
|
642 COMMANDS
|
|
|
643 \\{py-mode-map}
|
|
|
644 VARIABLES
|
|
|
645
|
|
|
646 py-indent-offset\t\tindentation increment
|
|
|
647 py-block-comment-prefix\t\tcomment string used by comment-region
|
|
|
648 py-python-command\t\tshell command to invoke Python interpreter
|
|
|
649 py-scroll-process-buffer\t\talways scroll Python process buffer
|
|
|
650 py-temp-directory\t\tdirectory used for temp files (if needed)
|
|
|
651 py-beep-if-tab-change\t\tring the bell if tab-width is changed"
|
|
|
652 (interactive)
|
|
|
653 (kill-all-local-variables)
|
|
|
654 (set-syntax-table py-mode-syntax-table)
|
|
|
655 (setq major-mode 'python-mode
|
|
|
656 mode-name "Python"
|
|
|
657 local-abbrev-table python-mode-abbrev-table)
|
|
|
658 (use-local-map py-mode-map)
|
|
|
659 ;; add the menu
|
|
|
660 (if py-menu
|
|
|
661 (easy-menu-add py-menu))
|
|
|
662 ;; Emacs 19 requires this
|
|
|
663 (if (or py-this-is-lucid-emacs-p py-this-is-emacs-19-p)
|
|
|
664 (setq comment-multi-line nil))
|
|
|
665 ;; BAW -- style...
|
|
|
666 (mapcar (function (lambda (x)
|
|
|
667 (make-local-variable (car x))
|
|
|
668 (set (car x) (cdr x))))
|
|
|
669 '((paragraph-separate . "^[ \t]*$")
|
|
|
670 (paragraph-start . "^[ \t]*$")
|
|
|
671 (require-final-newline . t)
|
|
|
672 (comment-start . "# ")
|
|
|
673 (comment-start-skip . "# *")
|
|
|
674 (comment-column . 40)
|
|
|
675 (indent-region-function . py-indent-region)
|
|
|
676 (indent-line-function . py-indent-line)))
|
|
|
677 ;; hack to allow overriding the tabsize in the file (see tokenizer.c)
|
|
|
678 ;;
|
|
|
679 ;; not sure where the magic comment has to be; to save time
|
|
|
680 ;; searching for a rarity, we give up if it's not found prior to the
|
|
|
681 ;; first executable statement.
|
|
|
682 ;;
|
|
|
683 ;; BAW - on first glance, this seems like complete hackery. Why was
|
|
|
684 ;; this necessary, and is it still necessary?
|
|
|
685 (let ((case-fold-search nil)
|
|
|
686 (start (point))
|
|
|
687 new-tab-width)
|
|
|
688 (if (re-search-forward
|
|
|
689 "^[ \t]*#[ \t]*vi:set[ \t]+tabsize=\\([0-9]+\\):"
|
|
|
690 (prog2 (py-next-statement 1) (point) (goto-char 1))
|
|
|
691 t)
|
|
|
692 (progn
|
|
|
693 (setq new-tab-width
|
|
|
694 (string-to-int
|
|
|
695 (buffer-substring (match-beginning 1) (match-end 1))))
|
|
|
696 (if (= tab-width new-tab-width)
|
|
|
697 nil
|
|
|
698 (setq tab-width new-tab-width)
|
|
|
699 (message "Caution: tab-width changed to %d" new-tab-width)
|
|
|
700 (if py-beep-if-tab-change (beep)))))
|
|
|
701 (goto-char start))
|
|
|
702
|
|
|
703 ;; install imenu
|
|
|
704 (setq imenu-create-index-function
|
|
|
705 (function imenu-example--create-python-index))
|
|
|
706 (if (fboundp 'imenu-add-to-menubar)
|
|
|
707 (imenu-add-to-menubar (format "%s-%s" "IM" mode-name)))
|
|
|
708
|
|
|
709 ;; run the mode hook. py-mode-hook use is deprecated
|
|
|
710 (if python-mode-hook
|
|
|
711 (run-hooks 'python-mode-hook)
|
|
|
712 (run-hooks 'py-mode-hook)))
|
|
|
713
|
|
|
714
|
|
|
715 (defun py-keep-region-active ()
|
|
|
716 ;; do whatever is necessary to keep the region active in XEmacs.
|
|
|
717 ;; Ignore byte-compiler warnings you might see. Also note that
|
|
|
718 ;; FSF's Emacs 19 does it differently and doesn't its policy doesn't
|
|
|
719 ;; require us to take explicit action.
|
|
|
720 (and (boundp 'zmacs-region-stays)
|
|
|
721 (setq zmacs-region-stays t)))
|
|
|
722
|
|
|
723
|
|
|
724 ;; electric characters
|
|
|
725 (defun py-outdent-p ()
|
|
|
726 ;; returns non-nil if the current line should outdent one level
|
|
|
727 (save-excursion
|
|
|
728 (and (progn (back-to-indentation)
|
|
|
729 (looking-at py-outdent-re))
|
|
|
730 (progn (backward-to-indentation 1)
|
|
|
731 (while (or (looking-at py-blank-or-comment-re)
|
|
|
732 (bobp))
|
|
|
733 (backward-to-indentation 1))
|
|
|
734 (not (looking-at py-no-outdent-re)))
|
|
|
735 )))
|
|
|
736
|
|
|
737
|
|
|
738 (defun py-electric-colon (arg)
|
|
|
739 "Insert a colon.
|
|
|
740 In certain cases the line is outdented appropriately. If a numeric
|
|
|
741 argument is provided, that many colons are inserted non-electrically.
|
|
|
742 Electric behavior is inhibited inside a string or comment."
|
|
|
743 (interactive "P")
|
|
|
744 (self-insert-command (prefix-numeric-value arg))
|
|
|
745 ;; are we in a string or comment?
|
|
|
746 (if (save-excursion
|
|
|
747 (let ((pps (parse-partial-sexp (save-excursion
|
|
|
748 (beginning-of-python-def-or-class)
|
|
|
749 (point))
|
|
|
750 (point))))
|
|
|
751 (not (or (nth 3 pps) (nth 4 pps)))))
|
|
|
752 (save-excursion
|
|
|
753 (let ((here (point))
|
|
|
754 (outdent 0)
|
|
|
755 (indent (py-compute-indentation)))
|
|
|
756 (if (and (not arg)
|
|
|
757 (py-outdent-p)
|
|
|
758 (= indent (save-excursion
|
|
|
759 (forward-line -1)
|
|
|
760 (py-compute-indentation)))
|
|
|
761 )
|
|
|
762 (setq outdent py-indent-offset))
|
|
|
763 ;; Don't indent, only outdent. This assumes that any lines that
|
|
|
764 ;; are already outdented relative to py-compute-indentation were
|
|
|
765 ;; put there on purpose. Its highly annoying to have `:' indent
|
|
|
766 ;; for you. Use TAB, C-c C-l or C-c C-r to adjust. TBD: Is
|
|
|
767 ;; there a better way to determine this???
|
|
|
768 (if (< (current-indentation) indent) nil
|
|
|
769 (goto-char here)
|
|
|
770 (beginning-of-line)
|
|
|
771 (delete-horizontal-space)
|
|
|
772 (indent-to (- indent outdent))
|
|
|
773 )))))
|
|
|
774
|
|
|
775
|
|
|
776 ;;; Functions that execute Python commands in a subprocess
|
|
|
777 (defun py-shell ()
|
|
|
778 "Start an interactive Python interpreter in another window.
|
|
|
779 This is like Shell mode, except that Python is running in the window
|
|
|
780 instead of a shell. See the `Interactive Shell' and `Shell Mode'
|
|
|
781 sections of the Emacs manual for details, especially for the key
|
|
|
782 bindings active in the `*Python*' buffer.
|
|
|
783
|
|
|
784 See the docs for variable `py-scroll-buffer' for info on scrolling
|
|
|
785 behavior in the process window.
|
|
|
786
|
|
|
787 Warning: Don't use an interactive Python if you change sys.ps1 or
|
|
|
788 sys.ps2 from their default values, or if you're running code that
|
|
|
789 prints `>>> ' or `... ' at the start of a line. `python-mode' can't
|
|
|
790 distinguish your output from Python's output, and assumes that `>>> '
|
|
|
791 at the start of a line is a prompt from Python. Similarly, the Emacs
|
|
|
792 Shell mode code assumes that both `>>> ' and `... ' at the start of a
|
|
|
793 line are Python prompts. Bad things can happen if you fool either
|
|
|
794 mode.
|
|
|
795
|
|
|
796 Warning: If you do any editing *in* the process buffer *while* the
|
|
|
797 buffer is accepting output from Python, do NOT attempt to `undo' the
|
|
|
798 changes. Some of the output (nowhere near the parts you changed!) may
|
|
|
799 be lost if you do. This appears to be an Emacs bug, an unfortunate
|
|
|
800 interaction between undo and process filters; the same problem exists in
|
|
|
801 non-Python process buffers using the default (Emacs-supplied) process
|
|
|
802 filter."
|
|
|
803 ;; BAW - should undo be disabled in the python process buffer, if
|
|
|
804 ;; this bug still exists?
|
|
|
805 (interactive)
|
|
|
806 (if py-this-is-emacs-19-p
|
|
|
807 (progn
|
|
|
808 (require 'comint)
|
|
|
809 (switch-to-buffer-other-window
|
|
|
810 (make-comint "Python" py-python-command)))
|
|
|
811 (progn
|
|
|
812 (require 'shell)
|
|
|
813 (switch-to-buffer-other-window
|
|
|
814 (apply (if (fboundp 'make-shell) 'make-shell 'make-comint)
|
|
|
815 "Python" py-python-command nil))))
|
|
|
816 (make-local-variable 'shell-prompt-pattern)
|
|
|
817 (setq shell-prompt-pattern "^>>> \\|^\\.\\.\\. ")
|
|
|
818 (set-process-filter (get-buffer-process (current-buffer))
|
|
|
819 'py-process-filter)
|
|
|
820 (set-syntax-table py-mode-syntax-table))
|
|
|
821
|
|
|
822 (defun py-execute-region (start end)
|
|
|
823 "Send the region between START and END to a Python interpreter.
|
|
|
824 If there is a *Python* process it is used.
|
|
|
825
|
|
|
826 Hint: If you want to execute part of a Python file several times
|
|
|
827 \(e.g., perhaps you're developing a function and want to flesh it out
|
|
|
828 a bit at a time), use `\\[narrow-to-region]' to restrict the buffer to
|
|
|
829 the region of interest, and send the code to a *Python* process via
|
|
|
830 `\\[py-execute-buffer]' instead.
|
|
|
831
|
|
|
832 Following are subtleties to note when using a *Python* process:
|
|
|
833
|
|
|
834 If a *Python* process is used, the region is copied into a temporary
|
|
|
835 file (in directory `py-temp-directory'), and an `execfile' command is
|
|
|
836 sent to Python naming that file. If you send regions faster than
|
|
|
837 Python can execute them, `python-mode' will save them into distinct
|
|
|
838 temp files, and execute the next one in the queue the next time it
|
|
|
839 sees a `>>> ' prompt from Python. Each time this happens, the process
|
|
|
840 buffer is popped into a window (if it's not already in some window) so
|
|
|
841 you can see it, and a comment of the form
|
|
|
842
|
|
|
843 \t## working on region in file <name> ...
|
|
|
844
|
|
|
845 is inserted at the end.
|
|
|
846
|
|
|
847 Caution: No more than 26 regions can be pending at any given time.
|
|
|
848 This limit is (indirectly) inherited from libc's mktemp(3).
|
|
|
849 `python-mode' does not try to protect you from exceeding the limit.
|
|
|
850 It's extremely unlikely that you'll get anywhere close to the limit in
|
|
|
851 practice, unless you're trying to be a jerk <grin>.
|
|
|
852
|
|
|
853 See the `\\[py-shell]' docs for additional warnings."
|
|
|
854 (interactive "r")
|
|
|
855 (or (< start end) (error "Region is empty"))
|
|
|
856 (let ((pyproc (get-process "Python"))
|
|
|
857 fname)
|
|
|
858 (if (null pyproc)
|
|
|
859 (shell-command-on-region start end py-python-command)
|
|
|
860 ;; else feed it thru a temp file
|
|
|
861 (setq fname (py-make-temp-name))
|
|
|
862 (write-region start end fname nil 'no-msg)
|
|
|
863 (setq py-file-queue (append py-file-queue (list fname)))
|
|
|
864 (if (cdr py-file-queue)
|
|
|
865 (message "File %s queued for execution" fname)
|
|
|
866 ;; else
|
|
|
867 (py-execute-file pyproc fname)))))
|
|
|
868
|
|
|
869 (defun py-execute-file (pyproc fname)
|
|
|
870 (py-append-to-process-buffer
|
|
|
871 pyproc
|
|
|
872 (format "## working on region in file %s ...\n" fname))
|
|
|
873 (process-send-string pyproc (format "execfile('%s')\n" fname)))
|
|
|
874
|
|
|
875 (defun py-process-filter (pyproc string)
|
|
|
876 (let ((curbuf (current-buffer))
|
|
|
877 (pbuf (process-buffer pyproc))
|
|
|
878 (pmark (process-mark pyproc))
|
|
|
879 file-finished)
|
|
|
880
|
|
|
881 ;; make sure we switch to a different buffer at least once. if we
|
|
|
882 ;; *don't* do this, then if the process buffer is in the selected
|
|
|
883 ;; window, and point is before the end, and lots of output is
|
|
|
884 ;; coming at a fast pace, then (a) simple cursor-movement commands
|
|
|
885 ;; like C-p, C-n, C-f, C-b, C-a, C-e take an incredibly long time
|
|
|
886 ;; to have a visible effect (the window just doesn't get updated,
|
|
|
887 ;; sometimes for minutes(!)), and (b) it takes about 5x longer to
|
|
|
888 ;; get all the process output (until the next python prompt).
|
|
|
889 ;;
|
|
|
890 ;; #b makes no sense to me at all. #a almost makes sense: unless
|
|
|
891 ;; we actually change buffers, set_buffer_internal in buffer.c
|
|
|
892 ;; doesn't set windows_or_buffers_changed to 1, & that in turn
|
|
|
893 ;; seems to make the Emacs command loop reluctant to update the
|
|
|
894 ;; display. Perhaps the default process filter in process.c's
|
|
|
895 ;; read_process_output has update_mode_lines++ for a similar
|
|
|
896 ;; reason? beats me ...
|
|
|
897
|
|
|
898 ;; BAW - we want to check to see if this still applies
|
|
|
899 (if (eq curbuf pbuf) ; mysterious ugly hack
|
|
|
900 (set-buffer (get-buffer-create "*scratch*")))
|
|
|
901
|
|
|
902 (set-buffer pbuf)
|
|
|
903 (let* ((start (point))
|
|
|
904 (goback (< start pmark))
|
|
|
905 (goend (and (not goback) (= start (point-max))))
|
|
|
906 (buffer-read-only nil))
|
|
|
907 (goto-char pmark)
|
|
|
908 (insert string)
|
|
|
909 (move-marker pmark (point))
|
|
|
910 (setq file-finished
|
|
|
911 (and py-file-queue
|
|
|
912 (equal ">>> "
|
|
|
913 (buffer-substring
|
|
|
914 (prog2 (beginning-of-line) (point)
|
|
|
915 (goto-char pmark))
|
|
|
916 (point)))))
|
|
|
917 (if goback (goto-char start)
|
|
|
918 ;; else
|
|
|
919 (if py-scroll-process-buffer
|
|
|
920 (let* ((pop-up-windows t)
|
|
|
921 (pwin (display-buffer pbuf)))
|
|
|
922 (set-window-point pwin (point)))))
|
|
|
923 (set-buffer curbuf)
|
|
|
924 (if file-finished
|
|
|
925 (progn
|
|
|
926 (py-delete-file-silently (car py-file-queue))
|
|
|
927 (setq py-file-queue (cdr py-file-queue))
|
|
|
928 (if py-file-queue
|
|
|
929 (py-execute-file pyproc (car py-file-queue)))))
|
|
|
930 (and goend
|
|
|
931 (progn (set-buffer pbuf)
|
|
|
932 (goto-char (point-max))))
|
|
|
933 )))
|
|
|
934
|
|
|
935 (defun py-execute-buffer ()
|
|
|
936 "Send the contents of the buffer to a Python interpreter.
|
|
|
937 If there is a *Python* process buffer it is used. If a clipping
|
|
|
938 restriction is in effect, only the accessible portion of the buffer is
|
|
|
939 sent. A trailing newline will be supplied if needed.
|
|
|
940
|
|
|
941 See the `\\[py-execute-region]' docs for an account of some subtleties."
|
|
|
942 (interactive)
|
|
|
943 (py-execute-region (point-min) (point-max)))
|
|
|
944
|
|
|
945
|
|
|
946
|
|
|
947 ;; Functions for Python style indentation
|
|
|
948 (defun py-delete-char (count)
|
|
|
949 "Reduce indentation or delete character.
|
|
|
950 If point is at the leftmost column, deletes the preceding newline.
|
|
|
951
|
|
|
952 Else if point is at the leftmost non-blank character of a line that is
|
|
|
953 neither a continuation line nor a non-indenting comment line, or if
|
|
|
954 point is at the end of a blank line, reduces the indentation to match
|
|
|
955 that of the line that opened the current block of code. The line that
|
|
|
956 opened the block is displayed in the echo area to help you keep track
|
|
|
957 of where you are. With numeric count, outdents that many blocks (but
|
|
|
958 not past column zero).
|
|
|
959
|
|
|
960 Else the preceding character is deleted, converting a tab to spaces if
|
|
|
961 needed so that only a single column position is deleted. Numeric
|
|
|
962 argument delets that many characters."
|
|
|
963 (interactive "*p")
|
|
|
964 (if (or (/= (current-indentation) (current-column))
|
|
|
965 (bolp)
|
|
|
966 (py-continuation-line-p)
|
|
|
967 (not py-honor-comment-indentation)
|
|
|
968 (looking-at "#[^ \t\n]")) ; non-indenting #
|
|
|
969 (backward-delete-char-untabify count)
|
|
|
970 ;; else indent the same as the colon line that opened the block
|
|
|
971
|
|
|
972 ;; force non-blank so py-goto-block-up doesn't ignore it
|
|
|
973 (insert-char ?* 1)
|
|
|
974 (backward-char)
|
|
|
975 (let ((base-indent 0) ; indentation of base line
|
|
|
976 (base-text "") ; and text of base line
|
|
|
977 (base-found-p nil))
|
|
|
978 (save-excursion
|
|
|
979 (while (< 0 count)
|
|
|
980 (condition-case nil ; in case no enclosing block
|
|
|
981 (progn
|
|
|
982 (py-goto-block-up 'no-mark)
|
|
|
983 (setq base-indent (current-indentation)
|
|
|
984 base-text (py-suck-up-leading-text)
|
|
|
985 base-found-p t))
|
|
|
986 (error nil))
|
|
|
987 (setq count (1- count))))
|
|
|
988 (delete-char 1) ; toss the dummy character
|
|
|
989 (delete-horizontal-space)
|
|
|
990 (indent-to base-indent)
|
|
|
991 (if base-found-p
|
|
|
992 (message "Closes block: %s" base-text)))))
|
|
|
993
|
|
|
994 ;; required for pending-del and delsel modes
|
|
|
995 (put 'py-delete-char 'delete-selection 'supersede)
|
|
|
996 (put 'py-delete-char 'pending-delete 'supersede)
|
|
|
997
|
|
|
998 (defun py-indent-line ()
|
|
|
999 "Fix the indentation of the current line according to Python rules."
|
|
|
1000 (interactive)
|
|
|
1001 (let* ((ci (current-indentation))
|
|
|
1002 (move-to-indentation-p (<= (current-column) ci))
|
|
|
1003 (need (py-compute-indentation)))
|
|
|
1004 ;; see if we need to outdent
|
|
|
1005 (if (py-outdent-p)
|
|
|
1006 (setq need (- need py-indent-offset)))
|
|
|
1007 (if (/= ci need)
|
|
|
1008 (save-excursion
|
|
|
1009 (beginning-of-line)
|
|
|
1010 (delete-horizontal-space)
|
|
|
1011 (indent-to need)))
|
|
|
1012 (if move-to-indentation-p (back-to-indentation))))
|
|
|
1013
|
|
|
1014 (defun py-newline-and-indent ()
|
|
|
1015 "Strives to act like the Emacs `newline-and-indent'.
|
|
|
1016 This is just `strives to' because correct indentation can't be computed
|
|
|
1017 from scratch for Python code. In general, deletes the whitespace before
|
|
|
1018 point, inserts a newline, and takes an educated guess as to how you want
|
|
|
1019 the new line indented."
|
|
|
1020 (interactive)
|
|
|
1021 (let ((ci (current-indentation)))
|
|
|
1022 (if (< ci (current-column)) ; if point beyond indentation
|
|
|
1023 (newline-and-indent)
|
|
|
1024 ;; else try to act like newline-and-indent "normally" acts
|
|
|
1025 (beginning-of-line)
|
|
|
1026 (insert-char ?\n 1)
|
|
|
1027 (move-to-column ci))))
|
|
|
1028
|
|
|
1029 (defun py-compute-indentation ()
|
|
|
1030 (save-excursion
|
|
|
1031 (let ((pps (parse-partial-sexp (save-excursion
|
|
|
1032 (beginning-of-python-def-or-class)
|
|
|
1033 (point))
|
|
|
1034 (point))))
|
|
|
1035 (beginning-of-line)
|
|
|
1036 (cond
|
|
|
1037 ;; are we inside a string or comment?
|
|
|
1038 ((or (nth 3 pps) (nth 4 pps))
|
|
|
1039 (save-excursion
|
|
|
1040 (if (not py-align-multiline-strings-p) 0
|
|
|
1041 ;; skip back over blank & non-indenting comment lines
|
|
|
1042 ;; note: will skip a blank or non-indenting comment line
|
|
|
1043 ;; that happens to be a continuation line too
|
|
|
1044 (re-search-backward "^[ \t]*\\([^ \t\n#]\\|#[ \t\n]\\)" nil 'move)
|
|
|
1045 (back-to-indentation)
|
|
|
1046 (current-column))))
|
|
|
1047 ;; are we on a continuation line?
|
|
|
1048 ((py-continuation-line-p)
|
|
|
1049 (let ((startpos (point))
|
|
|
1050 (open-bracket-pos (py-nesting-level))
|
|
|
1051 endpos searching found state)
|
|
|
1052 (if open-bracket-pos
|
|
|
1053 (progn
|
|
|
1054 ;; align with first item in list; else a normal
|
|
|
1055 ;; indent beyond the line with the open bracket
|
|
|
1056 (goto-char (1+ open-bracket-pos)) ; just beyond bracket
|
|
|
1057 ;; is the first list item on the same line?
|
|
|
1058 (skip-chars-forward " \t")
|
|
|
1059 (if (null (memq (following-char) '(?\n ?# ?\\)))
|
|
|
1060 ; yes, so line up with it
|
|
|
1061 (current-column)
|
|
|
1062 ;; first list item on another line, or doesn't exist yet
|
|
|
1063 (forward-line 1)
|
|
|
1064 (while (and (< (point) startpos)
|
|
|
1065 (looking-at "[ \t]*[#\n\\\\]")) ; skip noise
|
|
|
1066 (forward-line 1))
|
|
|
1067 (if (< (point) startpos)
|
|
|
1068 ;; again mimic the first list item
|
|
|
1069 (current-indentation)
|
|
|
1070 ;; else they're about to enter the first item
|
|
|
1071 (goto-char open-bracket-pos)
|
|
|
1072 (+ (current-indentation) py-indent-offset))))
|
|
|
1073
|
|
|
1074 ;; else on backslash continuation line
|
|
|
1075 (forward-line -1)
|
|
|
1076 (if (py-continuation-line-p) ; on at least 3rd line in block
|
|
|
1077 (current-indentation) ; so just continue the pattern
|
|
|
1078 ;; else started on 2nd line in block, so indent more.
|
|
|
1079 ;; if base line is an assignment with a start on a RHS,
|
|
|
1080 ;; indent to 2 beyond the leftmost "="; else skip first
|
|
|
1081 ;; chunk of non-whitespace characters on base line, + 1 more
|
|
|
1082 ;; column
|
|
|
1083 (end-of-line)
|
|
|
1084 (setq endpos (point) searching t)
|
|
|
1085 (back-to-indentation)
|
|
|
1086 (setq startpos (point))
|
|
|
1087 ;; look at all "=" from left to right, stopping at first
|
|
|
1088 ;; one not nested in a list or string
|
|
|
1089 (while searching
|
|
|
1090 (skip-chars-forward "^=" endpos)
|
|
|
1091 (if (= (point) endpos)
|
|
|
1092 (setq searching nil)
|
|
|
1093 (forward-char 1)
|
|
|
1094 (setq state (parse-partial-sexp startpos (point)))
|
|
|
1095 (if (and (zerop (car state)) ; not in a bracket
|
|
|
1096 (null (nth 3 state))) ; & not in a string
|
|
|
1097 (progn
|
|
|
1098 (setq searching nil) ; done searching in any case
|
|
|
1099 (setq found
|
|
|
1100 (not (or
|
|
|
1101 (eq (following-char) ?=)
|
|
|
1102 (memq (char-after (- (point) 2))
|
|
|
1103 '(?< ?> ?!)))))))))
|
|
|
1104 (if (or (not found) ; not an assignment
|
|
|
1105 (looking-at "[ \t]*\\\\")) ; <=><spaces><backslash>
|
|
|
1106 (progn
|
|
|
1107 (goto-char startpos)
|
|
|
1108 (skip-chars-forward "^ \t\n")))
|
|
|
1109 (1+ (current-column))))))
|
|
|
1110
|
|
|
1111 ;; not on a continuation line
|
|
|
1112 ((bobp) (current-indentation))
|
|
|
1113
|
|
|
1114 ;; Dfn: "Indenting comment line". A line containing only a
|
|
|
1115 ;; comment, but which is treated like a statement for
|
|
|
1116 ;; indentation calculation purposes. Such lines are only
|
|
|
1117 ;; treated specially by the mode; they are not treated
|
|
|
1118 ;; specially by the Python interpreter.
|
|
|
1119
|
|
|
1120 ;; The rules for indenting comment lines are a line where:
|
|
|
1121 ;; - the first non-whitespace character is `#', and
|
|
|
1122 ;; - the character following the `#' is whitespace, and
|
|
|
1123 ;; - the line is outdented with respect to (i.e. to the left
|
|
|
1124 ;; of) the indentation of the preceding non-blank line.
|
|
|
1125
|
|
|
1126 ;; The first non-blank line following an indenting comment
|
|
|
1127 ;; line is given the same amount of indentation as the
|
|
|
1128 ;; indenting comment line.
|
|
|
1129
|
|
|
1130 ;; All other comment-only lines are ignored for indentation
|
|
|
1131 ;; purposes.
|
|
|
1132
|
|
|
1133 ;; Are we looking at a comment-only line which is *not* an
|
|
|
1134 ;; indenting comment line? If so, we assume that its been
|
|
|
1135 ;; placed at the desired indentation, so leave it alone.
|
|
|
1136 ;; Indenting comment lines are aligned as statements down
|
|
|
1137 ;; below.
|
|
|
1138 ((and (looking-at "[ \t]*#[^ \t\n]")
|
|
|
1139 ;; NOTE: this test will not be performed in older Emacsen
|
|
|
1140 (fboundp 'forward-comment)
|
|
|
1141 (<= (current-indentation)
|
|
|
1142 (save-excursion
|
|
|
1143 (forward-comment (- (point-max)))
|
|
|
1144 (current-indentation))))
|
|
|
1145 (current-indentation))
|
|
|
1146
|
|
|
1147 ;; else indentation based on that of the statement that
|
|
|
1148 ;; precedes us; use the first line of that statement to
|
|
|
1149 ;; establish the base, in case the user forced a non-std
|
|
|
1150 ;; indentation for the continuation lines (if any)
|
|
|
1151 (t
|
|
|
1152 ;; skip back over blank & non-indenting comment lines note:
|
|
|
1153 ;; will skip a blank or non-indenting comment line that
|
|
|
1154 ;; happens to be a continuation line too. use fast Emacs 19
|
|
|
1155 ;; function if it's there.
|
|
|
1156 (if (and (eq py-honor-comment-indentation nil)
|
|
|
1157 (fboundp 'forward-comment))
|
|
|
1158 (forward-comment (- (point-max)))
|
|
|
1159 (let (done)
|
|
|
1160 (while (not done)
|
|
|
1161 (re-search-backward "^[ \t]*\\([^ \t\n#]\\|#[ \t\n]\\)"
|
|
|
1162 nil 'move)
|
|
|
1163 (setq done (or (eq py-honor-comment-indentation t)
|
|
|
1164 (bobp)
|
|
|
1165 (/= (following-char) ?#)
|
|
|
1166 (not (zerop (current-column)))))
|
|
|
1167 )))
|
|
|
1168 ;; if we landed inside a string, go to the beginning of that
|
|
|
1169 ;; string. this handles triple quoted, multi-line spanning
|
|
|
1170 ;; strings.
|
|
|
1171 (py-goto-initial-line)
|
|
|
1172 (+ (current-indentation)
|
|
|
1173 (if (py-statement-opens-block-p)
|
|
|
1174 py-indent-offset
|
|
|
1175 (if (py-statement-closes-block-p)
|
|
|
1176 (- py-indent-offset)
|
|
|
1177 0)))
|
|
|
1178 )))))
|
|
|
1179
|
|
|
1180 (defun py-guess-indent-offset (&optional global)
|
|
|
1181 "Guess a good value for, and change, `py-indent-offset'.
|
|
|
1182 By default (without a prefix arg), makes a buffer-local copy of
|
|
|
1183 `py-indent-offset' with the new value. This will not affect any other
|
|
|
1184 Python buffers. With a prefix arg, changes the global value of
|
|
|
1185 `py-indent-offset'. This affects all Python buffers (that don't have
|
|
|
1186 their own buffer-local copy), both those currently existing and those
|
|
|
1187 created later in the Emacs session.
|
|
|
1188
|
|
|
1189 Some people use a different value for `py-indent-offset' than you use.
|
|
|
1190 There's no excuse for such foolishness, but sometimes you have to deal
|
|
|
1191 with their ugly code anyway. This function examines the file and sets
|
|
|
1192 `py-indent-offset' to what it thinks it was when they created the
|
|
|
1193 mess.
|
|
|
1194
|
|
|
1195 Specifically, it searches forward from the statement containing point,
|
|
|
1196 looking for a line that opens a block of code. `py-indent-offset' is
|
|
|
1197 set to the difference in indentation between that line and the Python
|
|
|
1198 statement following it. If the search doesn't succeed going forward,
|
|
|
1199 it's tried again going backward."
|
|
|
1200 (interactive "P") ; raw prefix arg
|
|
|
1201 (let (new-value
|
|
|
1202 (start (point))
|
|
|
1203 restart
|
|
|
1204 (found nil)
|
|
|
1205 colon-indent)
|
|
|
1206 (py-goto-initial-line)
|
|
|
1207 (while (not (or found (eobp)))
|
|
|
1208 (if (re-search-forward ":[ \t]*\\($\\|[#\\]\\)" nil 'move)
|
|
|
1209 (progn
|
|
|
1210 (setq restart (point))
|
|
|
1211 (py-goto-initial-line)
|
|
|
1212 (if (py-statement-opens-block-p)
|
|
|
1213 (setq found t)
|
|
|
1214 (goto-char restart)))))
|
|
|
1215 (if found
|
|
|
1216 ()
|
|
|
1217 (goto-char start)
|
|
|
1218 (py-goto-initial-line)
|
|
|
1219 (while (not (or found (bobp)))
|
|
|
1220 (setq found
|
|
|
1221 (and
|
|
|
1222 (re-search-backward ":[ \t]*\\($\\|[#\\]\\)" nil 'move)
|
|
|
1223 (or (py-goto-initial-line) t) ; always true -- side effect
|
|
|
1224 (py-statement-opens-block-p)))))
|
|
|
1225 (setq colon-indent (current-indentation)
|
|
|
1226 found (and found (zerop (py-next-statement 1)))
|
|
|
1227 new-value (- (current-indentation) colon-indent))
|
|
|
1228 (goto-char start)
|
|
|
1229 (if found
|
|
|
1230 (progn
|
|
|
1231 (funcall (if global 'kill-local-variable 'make-local-variable)
|
|
|
1232 'py-indent-offset)
|
|
|
1233 (setq py-indent-offset new-value)
|
|
|
1234 (message "%s value of py-indent-offset set to %d"
|
|
|
1235 (if global "Global" "Local")
|
|
|
1236 py-indent-offset))
|
|
|
1237 (error "Sorry, couldn't guess a value for py-indent-offset"))))
|
|
|
1238
|
|
|
1239 (defun py-shift-region (start end count)
|
|
|
1240 (save-excursion
|
|
|
1241 (goto-char end) (beginning-of-line) (setq end (point))
|
|
|
1242 (goto-char start) (beginning-of-line) (setq start (point))
|
|
|
1243 (indent-rigidly start end count)))
|
|
|
1244
|
|
|
1245 (defun py-shift-region-left (start end &optional count)
|
|
|
1246 "Shift region of Python code to the left.
|
|
|
1247 The lines from the line containing the start of the current region up
|
|
|
1248 to (but not including) the line containing the end of the region are
|
|
|
1249 shifted to the left, by `py-indent-offset' columns.
|
|
|
1250
|
|
|
1251 If a prefix argument is given, the region is instead shifted by that
|
|
|
1252 many columns. With no active region, outdent only the current line.
|
|
|
1253 You cannot outdent the region if any line is already at column zero."
|
|
|
1254 (interactive
|
|
|
1255 (let ((p (point))
|
|
|
1256 (m (mark))
|
|
|
1257 (arg current-prefix-arg))
|
|
|
1258 (if m
|
|
|
1259 (list (min p m) (max p m) arg)
|
|
|
1260 (list p (save-excursion (forward-line 1) (point)) arg))))
|
|
|
1261 ;; if any line is at column zero, don't shift the region
|
|
|
1262 (save-excursion
|
|
|
1263 (goto-char start)
|
|
|
1264 (while (< (point) end)
|
|
|
1265 (back-to-indentation)
|
|
|
1266 (if (and (zerop (current-column))
|
|
|
1267 (not (looking-at "\\s *$")))
|
|
|
1268 (error "Region is at left edge."))
|
|
|
1269 (forward-line 1)))
|
|
|
1270 (py-shift-region start end (- (prefix-numeric-value
|
|
|
1271 (or count py-indent-offset))))
|
|
|
1272 (py-keep-region-active))
|
|
|
1273
|
|
|
1274 (defun py-shift-region-right (start end &optional count)
|
|
|
1275 "Shift region of Python code to the right.
|
|
|
1276 The lines from the line containing the start of the current region up
|
|
|
1277 to (but not including) the line containing the end of the region are
|
|
|
1278 shifted to the right, by `py-indent-offset' columns.
|
|
|
1279
|
|
|
1280 If a prefix argument is given, the region is instead shifted by that
|
|
|
1281 many columns. With no active region, indent only the current line."
|
|
|
1282 (interactive
|
|
|
1283 (let ((p (point))
|
|
|
1284 (m (mark))
|
|
|
1285 (arg current-prefix-arg))
|
|
|
1286 (if m
|
|
|
1287 (list (min p m) (max p m) arg)
|
|
|
1288 (list p (save-excursion (forward-line 1) (point)) arg))))
|
|
|
1289 (py-shift-region start end (prefix-numeric-value
|
|
|
1290 (or count py-indent-offset)))
|
|
|
1291 (py-keep-region-active))
|
|
|
1292
|
|
|
1293 (defun py-indent-region (start end &optional indent-offset)
|
|
|
1294 "Reindent a region of Python code.
|
|
|
1295
|
|
|
1296 The lines from the line containing the start of the current region up
|
|
|
1297 to (but not including) the line containing the end of the region are
|
|
|
1298 reindented. If the first line of the region has a non-whitespace
|
|
|
1299 character in the first column, the first line is left alone and the
|
|
|
1300 rest of the region is reindented with respect to it. Else the entire
|
|
|
1301 region is reindented with respect to the (closest code or indenting
|
|
|
1302 comment) statement immediately preceding the region.
|
|
|
1303
|
|
|
1304 This is useful when code blocks are moved or yanked, when enclosing
|
|
|
1305 control structures are introduced or removed, or to reformat code
|
|
|
1306 using a new value for the indentation offset.
|
|
|
1307
|
|
|
1308 If a numeric prefix argument is given, it will be used as the value of
|
|
|
1309 the indentation offset. Else the value of `py-indent-offset' will be
|
|
|
1310 used.
|
|
|
1311
|
|
|
1312 Warning: The region must be consistently indented before this function
|
|
|
1313 is called! This function does not compute proper indentation from
|
|
|
1314 scratch (that's impossible in Python), it merely adjusts the existing
|
|
|
1315 indentation to be correct in context.
|
|
|
1316
|
|
|
1317 Warning: This function really has no idea what to do with
|
|
|
1318 non-indenting comment lines, and shifts them as if they were indenting
|
|
|
1319 comment lines. Fixing this appears to require telepathy.
|
|
|
1320
|
|
|
1321 Special cases: whitespace is deleted from blank lines; continuation
|
|
|
1322 lines are shifted by the same amount their initial line was shifted,
|
|
|
1323 in order to preserve their relative indentation with respect to their
|
|
|
1324 initial line; and comment lines beginning in column 1 are ignored."
|
|
|
1325 (interactive "*r\nP") ; region; raw prefix arg
|
|
|
1326 (save-excursion
|
|
|
1327 (goto-char end) (beginning-of-line) (setq end (point-marker))
|
|
|
1328 (goto-char start) (beginning-of-line)
|
|
|
1329 (let ((py-indent-offset (prefix-numeric-value
|
|
|
1330 (or indent-offset py-indent-offset)))
|
|
|
1331 (indents '(-1)) ; stack of active indent levels
|
|
|
1332 (target-column 0) ; column to which to indent
|
|
|
1333 (base-shifted-by 0) ; amount last base line was shifted
|
|
|
1334 (indent-base (if (looking-at "[ \t\n]")
|
|
|
1335 (py-compute-indentation)
|
|
|
1336 0))
|
|
|
1337 ci)
|
|
|
1338 (while (< (point) end)
|
|
|
1339 (setq ci (current-indentation))
|
|
|
1340 ;; figure out appropriate target column
|
|
|
1341 (cond
|
|
|
1342 ((or (eq (following-char) ?#) ; comment in column 1
|
|
|
1343 (looking-at "[ \t]*$")) ; entirely blank
|
|
|
1344 (setq target-column 0))
|
|
|
1345 ((py-continuation-line-p) ; shift relative to base line
|
|
|
1346 (setq target-column (+ ci base-shifted-by)))
|
|
|
1347 (t ; new base line
|
|
|
1348 (if (> ci (car indents)) ; going deeper; push it
|
|
|
1349 (setq indents (cons ci indents))
|
|
|
1350 ;; else we should have seen this indent before
|
|
|
1351 (setq indents (memq ci indents)) ; pop deeper indents
|
|
|
1352 (if (null indents)
|
|
|
1353 (error "Bad indentation in region, at line %d"
|
|
|
1354 (save-restriction
|
|
|
1355 (widen)
|
|
|
1356 (1+ (count-lines 1 (point)))))))
|
|
|
1357 (setq target-column (+ indent-base
|
|
|
1358 (* py-indent-offset
|
|
|
1359 (- (length indents) 2))))
|
|
|
1360 (setq base-shifted-by (- target-column ci))))
|
|
|
1361 ;; shift as needed
|
|
|
1362 (if (/= ci target-column)
|
|
|
1363 (progn
|
|
|
1364 (delete-horizontal-space)
|
|
|
1365 (indent-to target-column)))
|
|
|
1366 (forward-line 1))))
|
|
|
1367 (set-marker end nil))
|
|
|
1368
|
|
|
1369 (defun py-comment-region (beg end &optional arg)
|
|
|
1370 "Like `comment-region' but uses double hash (`#') comment starter."
|
|
|
1371 (interactive "r\nP")
|
|
|
1372 (let ((comment-start py-block-comment-prefix))
|
|
|
1373 (comment-region beg end arg)))
|
|
|
1374
|
|
|
1375
|
|
|
1376 ;; Functions for moving point
|
|
|
1377 (defun py-previous-statement (count)
|
|
|
1378 "Go to the start of previous Python statement.
|
|
|
1379 If the statement at point is the i'th Python statement, goes to the
|
|
|
1380 start of statement i-COUNT. If there is no such statement, goes to the
|
|
|
1381 first statement. Returns count of statements left to move.
|
|
|
1382 `Statements' do not include blank, comment, or continuation lines."
|
|
|
1383 (interactive "p") ; numeric prefix arg
|
|
|
1384 (if (< count 0) (py-next-statement (- count))
|
|
|
1385 (py-goto-initial-line)
|
|
|
1386 (let (start)
|
|
|
1387 (while (and
|
|
|
1388 (setq start (point)) ; always true -- side effect
|
|
|
1389 (> count 0)
|
|
|
1390 (zerop (forward-line -1))
|
|
|
1391 (py-goto-statement-at-or-above))
|
|
|
1392 (setq count (1- count)))
|
|
|
1393 (if (> count 0) (goto-char start)))
|
|
|
1394 count))
|
|
|
1395
|
|
|
1396 (defun py-next-statement (count)
|
|
|
1397 "Go to the start of next Python statement.
|
|
|
1398 If the statement at point is the i'th Python statement, goes to the
|
|
|
1399 start of statement i+COUNT. If there is no such statement, goes to the
|
|
|
1400 last statement. Returns count of statements left to move. `Statements'
|
|
|
1401 do not include blank, comment, or continuation lines."
|
|
|
1402 (interactive "p") ; numeric prefix arg
|
|
|
1403 (if (< count 0) (py-previous-statement (- count))
|
|
|
1404 (beginning-of-line)
|
|
|
1405 (let (start)
|
|
|
1406 (while (and
|
|
|
1407 (setq start (point)) ; always true -- side effect
|
|
|
1408 (> count 0)
|
|
|
1409 (py-goto-statement-below))
|
|
|
1410 (setq count (1- count)))
|
|
|
1411 (if (> count 0) (goto-char start)))
|
|
|
1412 count))
|
|
|
1413
|
|
|
1414 (defun py-goto-block-up (&optional nomark)
|
|
|
1415 "Move up to start of current block.
|
|
|
1416 Go to the statement that starts the smallest enclosing block; roughly
|
|
|
1417 speaking, this will be the closest preceding statement that ends with a
|
|
|
1418 colon and is indented less than the statement you started on. If
|
|
|
1419 successful, also sets the mark to the starting point.
|
|
|
1420
|
|
|
1421 `\\[py-mark-block]' can be used afterward to mark the whole code
|
|
|
1422 block, if desired.
|
|
|
1423
|
|
|
1424 If called from a program, the mark will not be set if optional argument
|
|
|
1425 NOMARK is not nil."
|
|
|
1426 (interactive)
|
|
|
1427 (let ((start (point))
|
|
|
1428 (found nil)
|
|
|
1429 initial-indent)
|
|
|
1430 (py-goto-initial-line)
|
|
|
1431 ;; if on blank or non-indenting comment line, use the preceding stmt
|
|
|
1432 (if (looking-at "[ \t]*\\($\\|#[^ \t\n]\\)")
|
|
|
1433 (progn
|
|
|
1434 (py-goto-statement-at-or-above)
|
|
|
1435 (setq found (py-statement-opens-block-p))))
|
|
|
1436 ;; search back for colon line indented less
|
|
|
1437 (setq initial-indent (current-indentation))
|
|
|
1438 (if (zerop initial-indent)
|
|
|
1439 ;; force fast exit
|
|
|
1440 (goto-char (point-min)))
|
|
|
1441 (while (not (or found (bobp)))
|
|
|
1442 (setq found
|
|
|
1443 (and
|
|
|
1444 (re-search-backward ":[ \t]*\\($\\|[#\\]\\)" nil 'move)
|
|
|
1445 (or (py-goto-initial-line) t) ; always true -- side effect
|
|
|
1446 (< (current-indentation) initial-indent)
|
|
|
1447 (py-statement-opens-block-p))))
|
|
|
1448 (if found
|
|
|
1449 (progn
|
|
|
1450 (or nomark (push-mark start))
|
|
|
1451 (back-to-indentation))
|
|
|
1452 (goto-char start)
|
|
|
1453 (error "Enclosing block not found"))))
|
|
|
1454
|
|
|
1455 (defun beginning-of-python-def-or-class (&optional class)
|
|
|
1456 "Move point to start of def (or class, with prefix arg).
|
|
|
1457
|
|
|
1458 Searches back for the closest preceding `def'. If you supply a prefix
|
|
|
1459 arg, looks for a `class' instead. The docs assume the `def' case;
|
|
|
1460 just substitute `class' for `def' for the other case.
|
|
|
1461
|
|
|
1462 If point is in a def statement already, and after the `d', simply
|
|
|
1463 moves point to the start of the statement.
|
|
|
1464
|
|
|
1465 Else (point is not in a def statement, or at or before the `d' of a
|
|
|
1466 def statement), searches for the closest preceding def statement, and
|
|
|
1467 leaves point at its start. If no such statement can be found, leaves
|
|
|
1468 point at the start of the buffer.
|
|
|
1469
|
|
|
1470 Returns t iff a def statement is found by these rules.
|
|
|
1471
|
|
|
1472 Note that doing this command repeatedly will take you closer to the
|
|
|
1473 start of the buffer each time.
|
|
|
1474
|
|
|
1475 If you want to mark the current def/class, see
|
|
|
1476 `\\[mark-python-def-or-class]'."
|
|
|
1477 (interactive "P") ; raw prefix arg
|
|
|
1478 (let ((at-or-before-p (<= (current-column) (current-indentation)))
|
|
|
1479 (start-of-line (progn (beginning-of-line) (point)))
|
|
|
1480 (start-of-stmt (progn (py-goto-initial-line) (point))))
|
|
|
1481 (if (or (/= start-of-stmt start-of-line)
|
|
|
1482 (not at-or-before-p))
|
|
|
1483 (end-of-line)) ; OK to match on this line
|
|
|
1484 (re-search-backward (if class "^[ \t]*class\\>" "^[ \t]*def\\>")
|
|
|
1485 nil 'move)))
|
|
|
1486
|
|
|
1487 (defun end-of-python-def-or-class (&optional class)
|
|
|
1488 "Move point beyond end of def (or class, with prefix arg) body.
|
|
|
1489
|
|
|
1490 By default, looks for an appropriate `def'. If you supply a prefix arg,
|
|
|
1491 looks for a `class' instead. The docs assume the `def' case; just
|
|
|
1492 substitute `class' for `def' for the other case.
|
|
|
1493
|
|
|
1494 If point is in a def statement already, this is the def we use.
|
|
|
1495
|
|
|
1496 Else if the def found by `\\[beginning-of-python-def-or-class]'
|
|
|
1497 contains the statement you started on, that's the def we use.
|
|
|
1498
|
|
|
1499 Else we search forward for the closest following def, and use that.
|
|
|
1500
|
|
|
1501 If a def can be found by these rules, point is moved to the start of
|
|
|
1502 the line immediately following the def block, and the position of the
|
|
|
1503 start of the def is returned.
|
|
|
1504
|
|
|
1505 Else point is moved to the end of the buffer, and nil is returned.
|
|
|
1506
|
|
|
1507 Note that doing this command repeatedly will take you closer to the
|
|
|
1508 end of the buffer each time.
|
|
|
1509
|
|
|
1510 If you want to mark the current def/class, see
|
|
|
1511 `\\[mark-python-def-or-class]'."
|
|
|
1512 (interactive "P") ; raw prefix arg
|
|
|
1513 (let ((start (progn (py-goto-initial-line) (point)))
|
|
|
1514 (which (if class "class" "def"))
|
|
|
1515 (state 'not-found))
|
|
|
1516 ;; move point to start of appropriate def/class
|
|
|
1517 (if (looking-at (concat "[ \t]*" which "\\>")) ; already on one
|
|
|
1518 (setq state 'at-beginning)
|
|
|
1519 ;; else see if beginning-of-python-def-or-class hits container
|
|
|
1520 (if (and (beginning-of-python-def-or-class class)
|
|
|
1521 (progn (py-goto-beyond-block)
|
|
|
1522 (> (point) start)))
|
|
|
1523 (setq state 'at-end)
|
|
|
1524 ;; else search forward
|
|
|
1525 (goto-char start)
|
|
|
1526 (if (re-search-forward (concat "^[ \t]*" which "\\>") nil 'move)
|
|
|
1527 (progn (setq state 'at-beginning)
|
|
|
1528 (beginning-of-line)))))
|
|
|
1529 (cond
|
|
|
1530 ((eq state 'at-beginning) (py-goto-beyond-block) t)
|
|
|
1531 ((eq state 'at-end) t)
|
|
|
1532 ((eq state 'not-found) nil)
|
|
|
1533 (t (error "internal error in end-of-python-def-or-class")))))
|
|
|
1534
|
|
|
1535
|
|
|
1536 ;; Functions for marking regions
|
|
|
1537 (defun py-mark-block (&optional extend just-move)
|
|
|
1538 "Mark following block of lines. With prefix arg, mark structure.
|
|
|
1539 Easier to use than explain. It sets the region to an `interesting'
|
|
|
1540 block of succeeding lines. If point is on a blank line, it goes down to
|
|
|
1541 the next non-blank line. That will be the start of the region. The end
|
|
|
1542 of the region depends on the kind of line at the start:
|
|
|
1543
|
|
|
1544 - If a comment, the region will include all succeeding comment lines up
|
|
|
1545 to (but not including) the next non-comment line (if any).
|
|
|
1546
|
|
|
1547 - Else if a prefix arg is given, and the line begins one of these
|
|
|
1548 structures:
|
|
|
1549
|
|
|
1550 if elif else try except finally for while def class
|
|
|
1551
|
|
|
1552 the region will be set to the body of the structure, including
|
|
|
1553 following blocks that `belong' to it, but excluding trailing blank
|
|
|
1554 and comment lines. E.g., if on a `try' statement, the `try' block
|
|
|
1555 and all (if any) of the following `except' and `finally' blocks
|
|
|
1556 that belong to the `try' structure will be in the region. Ditto
|
|
|
1557 for if/elif/else, for/else and while/else structures, and (a bit
|
|
|
1558 degenerate, since they're always one-block structures) def and
|
|
|
1559 class blocks.
|
|
|
1560
|
|
|
1561 - Else if no prefix argument is given, and the line begins a Python
|
|
|
1562 block (see list above), and the block is not a `one-liner' (i.e.,
|
|
|
1563 the statement ends with a colon, not with code), the region will
|
|
|
1564 include all succeeding lines up to (but not including) the next
|
|
|
1565 code statement (if any) that's indented no more than the starting
|
|
|
1566 line, except that trailing blank and comment lines are excluded.
|
|
|
1567 E.g., if the starting line begins a multi-statement `def'
|
|
|
1568 structure, the region will be set to the full function definition,
|
|
|
1569 but without any trailing `noise' lines.
|
|
|
1570
|
|
|
1571 - Else the region will include all succeeding lines up to (but not
|
|
|
1572 including) the next blank line, or code or indenting-comment line
|
|
|
1573 indented strictly less than the starting line. Trailing indenting
|
|
|
1574 comment lines are included in this case, but not trailing blank
|
|
|
1575 lines.
|
|
|
1576
|
|
|
1577 A msg identifying the location of the mark is displayed in the echo
|
|
|
1578 area; or do `\\[exchange-point-and-mark]' to flip down to the end.
|
|
|
1579
|
|
|
1580 If called from a program, optional argument EXTEND plays the role of
|
|
|
1581 the prefix arg, and if optional argument JUST-MOVE is not nil, just
|
|
|
1582 moves to the end of the block (& does not set mark or display a msg)."
|
|
|
1583 (interactive "P") ; raw prefix arg
|
|
|
1584 (py-goto-initial-line)
|
|
|
1585 ;; skip over blank lines
|
|
|
1586 (while (and
|
|
|
1587 (looking-at "[ \t]*$") ; while blank line
|
|
|
1588 (not (eobp))) ; & somewhere to go
|
|
|
1589 (forward-line 1))
|
|
|
1590 (if (eobp)
|
|
|
1591 (error "Hit end of buffer without finding a non-blank stmt"))
|
|
|
1592 (let ((initial-pos (point))
|
|
|
1593 (initial-indent (current-indentation))
|
|
|
1594 last-pos ; position of last stmt in region
|
|
|
1595 (followers
|
|
|
1596 '((if elif else) (elif elif else) (else)
|
|
|
1597 (try except finally) (except except) (finally)
|
|
|
1598 (for else) (while else)
|
|
|
1599 (def) (class) ) )
|
|
|
1600 first-symbol next-symbol)
|
|
|
1601
|
|
|
1602 (cond
|
|
|
1603 ;; if comment line, suck up the following comment lines
|
|
|
1604 ((looking-at "[ \t]*#")
|
|
|
1605 (re-search-forward "^[ \t]*[^ \t#]" nil 'move) ; look for non-comment
|
|
|
1606 (re-search-backward "^[ \t]*#") ; and back to last comment in block
|
|
|
1607 (setq last-pos (point)))
|
|
|
1608
|
|
|
1609 ;; else if line is a block line and EXTEND given, suck up
|
|
|
1610 ;; the whole structure
|
|
|
1611 ((and extend
|
|
|
1612 (setq first-symbol (py-suck-up-first-keyword) )
|
|
|
1613 (assq first-symbol followers))
|
|
|
1614 (while (and
|
|
|
1615 (or (py-goto-beyond-block) t) ; side effect
|
|
|
1616 (forward-line -1) ; side effect
|
|
|
1617 (setq last-pos (point)) ; side effect
|
|
|
1618 (py-goto-statement-below)
|
|
|
1619 (= (current-indentation) initial-indent)
|
|
|
1620 (setq next-symbol (py-suck-up-first-keyword))
|
|
|
1621 (memq next-symbol (cdr (assq first-symbol followers))))
|
|
|
1622 (setq first-symbol next-symbol)))
|
|
|
1623
|
|
|
1624 ;; else if line *opens* a block, search for next stmt indented <=
|
|
|
1625 ((py-statement-opens-block-p)
|
|
|
1626 (while (and
|
|
|
1627 (setq last-pos (point)) ; always true -- side effect
|
|
|
1628 (py-goto-statement-below)
|
|
|
1629 (> (current-indentation) initial-indent))
|
|
|
1630 nil))
|
|
|
1631
|
|
|
1632 ;; else plain code line; stop at next blank line, or stmt or
|
|
|
1633 ;; indenting comment line indented <
|
|
|
1634 (t
|
|
|
1635 (while (and
|
|
|
1636 (setq last-pos (point)) ; always true -- side effect
|
|
|
1637 (or (py-goto-beyond-final-line) t)
|
|
|
1638 (not (looking-at "[ \t]*$")) ; stop at blank line
|
|
|
1639 (or
|
|
|
1640 (>= (current-indentation) initial-indent)
|
|
|
1641 (looking-at "[ \t]*#[^ \t\n]"))) ; ignore non-indenting #
|
|
|
1642 nil)))
|
|
|
1643
|
|
|
1644 ;; skip to end of last stmt
|
|
|
1645 (goto-char last-pos)
|
|
|
1646 (py-goto-beyond-final-line)
|
|
|
1647
|
|
|
1648 ;; set mark & display
|
|
|
1649 (if just-move
|
|
|
1650 () ; just return
|
|
|
1651 (push-mark (point) 'no-msg)
|
|
|
1652 (forward-line -1)
|
|
|
1653 (message "Mark set after: %s" (py-suck-up-leading-text))
|
|
|
1654 (goto-char initial-pos))))
|
|
|
1655
|
|
|
1656 (defun mark-python-def-or-class (&optional class)
|
|
|
1657 "Set region to body of def (or class, with prefix arg) enclosing point.
|
|
|
1658 Pushes the current mark, then point, on the mark ring (all language
|
|
|
1659 modes do this, but although it's handy it's never documented ...).
|
|
|
1660
|
|
|
1661 In most Emacs language modes, this function bears at least a
|
|
|
1662 hallucinogenic resemblance to `\\[end-of-python-def-or-class]' and
|
|
|
1663 `\\[beginning-of-python-def-or-class]'.
|
|
|
1664
|
|
|
1665 And in earlier versions of Python mode, all 3 were tightly connected.
|
|
|
1666 Turned out that was more confusing than useful: the `goto start' and
|
|
|
1667 `goto end' commands are usually used to search through a file, and
|
|
|
1668 people expect them to act a lot like `search backward' and `search
|
|
|
1669 forward' string-search commands. But because Python `def' and `class'
|
|
|
1670 can nest to arbitrary levels, finding the smallest def containing
|
|
|
1671 point cannot be done via a simple backward search: the def containing
|
|
|
1672 point may not be the closest preceding def, or even the closest
|
|
|
1673 preceding def that's indented less. The fancy algorithm required is
|
|
|
1674 appropriate for the usual uses of this `mark' command, but not for the
|
|
|
1675 `goto' variations.
|
|
|
1676
|
|
|
1677 So the def marked by this command may not be the one either of the
|
|
|
1678 `goto' commands find: If point is on a blank or non-indenting comment
|
|
|
1679 line, moves back to start of the closest preceding code statement or
|
|
|
1680 indenting comment line. If this is a `def' statement, that's the def
|
|
|
1681 we use. Else searches for the smallest enclosing `def' block and uses
|
|
|
1682 that. Else signals an error.
|
|
|
1683
|
|
|
1684 When an enclosing def is found: The mark is left immediately beyond
|
|
|
1685 the last line of the def block. Point is left at the start of the
|
|
|
1686 def, except that: if the def is preceded by a number of comment lines
|
|
|
1687 followed by (at most) one optional blank line, point is left at the
|
|
|
1688 start of the comments; else if the def is preceded by a blank line,
|
|
|
1689 point is left at its start.
|
|
|
1690
|
|
|
1691 The intent is to mark the containing def/class and its associated
|
|
|
1692 documentation, to make moving and duplicating functions and classes
|
|
|
1693 pleasant."
|
|
|
1694 (interactive "P") ; raw prefix arg
|
|
|
1695 (let ((start (point))
|
|
|
1696 (which (if class "class" "def")))
|
|
|
1697 (push-mark start)
|
|
|
1698 (if (not (py-go-up-tree-to-keyword which))
|
|
|
1699 (progn (goto-char start)
|
|
|
1700 (error "Enclosing %s not found" which))
|
|
|
1701 ;; else enclosing def/class found
|
|
|
1702 (setq start (point))
|
|
|
1703 (py-goto-beyond-block)
|
|
|
1704 (push-mark (point))
|
|
|
1705 (goto-char start)
|
|
|
1706 (if (zerop (forward-line -1)) ; if there is a preceding line
|
|
|
1707 (progn
|
|
|
1708 (if (looking-at "[ \t]*$") ; it's blank
|
|
|
1709 (setq start (point)) ; so reset start point
|
|
|
1710 (goto-char start)) ; else try again
|
|
|
1711 (if (zerop (forward-line -1))
|
|
|
1712 (if (looking-at "[ \t]*#") ; a comment
|
|
|
1713 ;; look back for non-comment line
|
|
|
1714 ;; tricky: note that the regexp matches a blank
|
|
|
1715 ;; line, cuz \n is in the 2nd character class
|
|
|
1716 (and
|
|
|
1717 (re-search-backward "^[ \t]*[^ \t#]" nil 'move)
|
|
|
1718 (forward-line 1))
|
|
|
1719 ;; no comment, so go back
|
|
|
1720 (goto-char start))))))))
|
|
|
1721
|
|
|
1722 ;; ripped from cc-mode
|
|
|
1723 (defun py-forward-into-nomenclature (&optional arg)
|
|
|
1724 "Move forward to end of a nomenclature section or word.
|
|
|
1725 With arg, to it arg times.
|
|
|
1726
|
|
|
1727 A `nomenclature' is a fancy way of saying AWordWithMixedCaseNotUnderscores."
|
|
|
1728 (interactive "p")
|
|
|
1729 (let ((case-fold-search nil))
|
|
|
1730 (if (> arg 0)
|
|
|
1731 (re-search-forward "\\W*\\([A-Z_]*[a-z0-9]*\\)" (point-max) t arg)
|
|
|
1732 (while (and (< arg 0)
|
|
|
1733 (re-search-backward
|
|
|
1734 "\\(\\(\\W\\|[a-z0-9]\\)[A-Z]+\\|\\W\\w+\\)"
|
|
|
1735 (point-min) 0))
|
|
|
1736 (forward-char 1)
|
|
|
1737 (setq arg (1+ arg)))))
|
|
|
1738 (py-keep-region-active))
|
|
|
1739
|
|
|
1740 (defun py-backward-into-nomenclature (&optional arg)
|
|
|
1741 "Move backward to beginning of a nomenclature section or word.
|
|
|
1742 With optional ARG, move that many times. If ARG is negative, move
|
|
|
1743 forward.
|
|
|
1744
|
|
|
1745 A `nomenclature' is a fancy way of saying AWordWithMixedCaseNotUnderscores."
|
|
|
1746 (interactive "p")
|
|
|
1747 (py-forward-into-nomenclature (- arg))
|
|
|
1748 (py-keep-region-active))
|
|
|
1749
|
|
|
1750
|
|
|
1751
|
|
|
1752 ;; Documentation functions
|
|
|
1753
|
|
|
1754 ;; dump the long form of the mode blurb; does the usual doc escapes,
|
|
|
1755 ;; plus lines of the form ^[vc]:name$ to suck variable & command docs
|
|
|
1756 ;; out of the right places, along with the keys they're on & current
|
|
|
1757 ;; values
|
|
|
1758 (defun py-dump-help-string (str)
|
|
|
1759 (with-output-to-temp-buffer "*Help*"
|
|
|
1760 (let ((locals (buffer-local-variables))
|
|
|
1761 funckind funcname func funcdoc
|
|
|
1762 (start 0) mstart end
|
|
|
1763 keys )
|
|
|
1764 (while (string-match "^%\\([vc]\\):\\(.+\\)\n" str start)
|
|
|
1765 (setq mstart (match-beginning 0) end (match-end 0)
|
|
|
1766 funckind (substring str (match-beginning 1) (match-end 1))
|
|
|
1767 funcname (substring str (match-beginning 2) (match-end 2))
|
|
|
1768 func (intern funcname))
|
|
|
1769 (princ (substitute-command-keys (substring str start mstart)))
|
|
|
1770 (cond
|
|
|
1771 ((equal funckind "c") ; command
|
|
|
1772 (setq funcdoc (documentation func)
|
|
|
1773 keys (concat
|
|
|
1774 "Key(s): "
|
|
|
1775 (mapconcat 'key-description
|
|
|
1776 (where-is-internal func py-mode-map)
|
|
|
1777 ", "))))
|
|
|
1778 ((equal funckind "v") ; variable
|
|
|
1779 (setq funcdoc (substitute-command-keys
|
|
|
1780 (get func 'variable-documentation))
|
|
|
1781 keys (if (assq func locals)
|
|
|
1782 (concat
|
|
|
1783 "Local/Global values: "
|
|
|
1784 (prin1-to-string (symbol-value func))
|
|
|
1785 " / "
|
|
|
1786 (prin1-to-string (default-value func)))
|
|
|
1787 (concat
|
|
|
1788 "Value: "
|
|
|
1789 (prin1-to-string (symbol-value func))))))
|
|
|
1790 (t ; unexpected
|
|
|
1791 (error "Error in py-dump-help-string, tag `%s'" funckind)))
|
|
|
1792 (princ (format "\n-> %s:\t%s\t%s\n\n"
|
|
|
1793 (if (equal funckind "c") "Command" "Variable")
|
|
|
1794 funcname keys))
|
|
|
1795 (princ funcdoc)
|
|
|
1796 (terpri)
|
|
|
1797 (setq start end))
|
|
|
1798 (princ (substitute-command-keys (substring str start))))
|
|
|
1799 (print-help-return-message)))
|
|
|
1800
|
|
|
1801 (defun py-describe-mode ()
|
|
|
1802 "Dump long form of Python-mode docs."
|
|
|
1803 (interactive)
|
|
|
1804 (py-dump-help-string "Major mode for editing Python files.
|
|
|
1805 Knows about Python indentation, tokens, comments and continuation lines.
|
|
|
1806 Paragraphs are separated by blank lines only.
|
|
|
1807
|
|
|
1808 Major sections below begin with the string `@'; specific function and
|
|
|
1809 variable docs begin with `->'.
|
|
|
1810
|
|
|
1811 @EXECUTING PYTHON CODE
|
|
|
1812
|
|
|
1813 \\[py-execute-buffer]\tsends the entire buffer to the Python interpreter
|
|
|
1814 \\[py-execute-region]\tsends the current region
|
|
|
1815 \\[py-shell]\tstarts a Python interpreter window; this will be used by
|
|
|
1816 \tsubsequent \\[py-execute-buffer] or \\[py-execute-region] commands
|
|
|
1817 %c:py-execute-buffer
|
|
|
1818 %c:py-execute-region
|
|
|
1819 %c:py-shell
|
|
|
1820
|
|
|
1821 @VARIABLES
|
|
|
1822
|
|
|
1823 py-indent-offset\tindentation increment
|
|
|
1824 py-block-comment-prefix\tcomment string used by comment-region
|
|
|
1825
|
|
|
1826 py-python-command\tshell command to invoke Python interpreter
|
|
|
1827 py-scroll-process-buffer\talways scroll Python process buffer
|
|
|
1828 py-temp-directory\tdirectory used for temp files (if needed)
|
|
|
1829
|
|
|
1830 py-beep-if-tab-change\tring the bell if tab-width is changed
|
|
|
1831 %v:py-indent-offset
|
|
|
1832 %v:py-block-comment-prefix
|
|
|
1833 %v:py-python-command
|
|
|
1834 %v:py-scroll-process-buffer
|
|
|
1835 %v:py-temp-directory
|
|
|
1836 %v:py-beep-if-tab-change
|
|
|
1837
|
|
|
1838 @KINDS OF LINES
|
|
|
1839
|
|
|
1840 Each physical line in the file is either a `continuation line' (the
|
|
|
1841 preceding line ends with a backslash that's not part of a comment, or
|
|
|
1842 the paren/bracket/brace nesting level at the start of the line is
|
|
|
1843 non-zero, or both) or an `initial line' (everything else).
|
|
|
1844
|
|
|
1845 An initial line is in turn a `blank line' (contains nothing except
|
|
|
1846 possibly blanks or tabs), a `comment line' (leftmost non-blank
|
|
|
1847 character is `#'), or a `code line' (everything else).
|
|
|
1848
|
|
|
1849 Comment Lines
|
|
|
1850
|
|
|
1851 Although all comment lines are treated alike by Python, Python mode
|
|
|
1852 recognizes two kinds that act differently with respect to indentation.
|
|
|
1853
|
|
|
1854 An `indenting comment line' is a comment line with a blank, tab or
|
|
|
1855 nothing after the initial `#'. The indentation commands (see below)
|
|
|
1856 treat these exactly as if they were code lines: a line following an
|
|
|
1857 indenting comment line will be indented like the comment line. All
|
|
|
1858 other comment lines (those with a non-whitespace character immediately
|
|
|
1859 following the initial `#') are `non-indenting comment lines', and
|
|
|
1860 their indentation is ignored by the indentation commands.
|
|
|
1861
|
|
|
1862 Indenting comment lines are by far the usual case, and should be used
|
|
|
1863 whenever possible. Non-indenting comment lines are useful in cases
|
|
|
1864 like these:
|
|
|
1865
|
|
|
1866 \ta = b # a very wordy single-line comment that ends up being
|
|
|
1867 \t #... continued onto another line
|
|
|
1868
|
|
|
1869 \tif a == b:
|
|
|
1870 ##\t\tprint 'panic!' # old code we've `commented out'
|
|
|
1871 \t\treturn a
|
|
|
1872
|
|
|
1873 Since the `#...' and `##' comment lines have a non-whitespace
|
|
|
1874 character following the initial `#', Python mode ignores them when
|
|
|
1875 computing the proper indentation for the next line.
|
|
|
1876
|
|
|
1877 Continuation Lines and Statements
|
|
|
1878
|
|
|
1879 The Python-mode commands generally work on statements instead of on
|
|
|
1880 individual lines, where a `statement' is a comment or blank line, or a
|
|
|
1881 code line and all of its following continuation lines (if any)
|
|
|
1882 considered as a single logical unit. The commands in this mode
|
|
|
1883 generally (when it makes sense) automatically move to the start of the
|
|
|
1884 statement containing point, even if point happens to be in the middle
|
|
|
1885 of some continuation line.
|
|
|
1886
|
|
|
1887
|
|
|
1888 @INDENTATION
|
|
|
1889
|
|
|
1890 Primarily for entering new code:
|
|
|
1891 \t\\[indent-for-tab-command]\t indent line appropriately
|
|
|
1892 \t\\[py-newline-and-indent]\t insert newline, then indent
|
|
|
1893 \t\\[py-delete-char]\t reduce indentation, or delete single character
|
|
|
1894
|
|
|
1895 Primarily for reindenting existing code:
|
|
|
1896 \t\\[py-guess-indent-offset]\t guess py-indent-offset from file content; change locally
|
|
|
1897 \t\\[universal-argument] \\[py-guess-indent-offset]\t ditto, but change globally
|
|
|
1898
|
|
|
1899 \t\\[py-indent-region]\t reindent region to match its context
|
|
|
1900 \t\\[py-shift-region-left]\t shift region left by py-indent-offset
|
|
|
1901 \t\\[py-shift-region-right]\t shift region right by py-indent-offset
|
|
|
1902
|
|
|
1903 Unlike most programming languages, Python uses indentation, and only
|
|
|
1904 indentation, to specify block structure. Hence the indentation supplied
|
|
|
1905 automatically by Python-mode is just an educated guess: only you know
|
|
|
1906 the block structure you intend, so only you can supply correct
|
|
|
1907 indentation.
|
|
|
1908
|
|
|
1909 The \\[indent-for-tab-command] and \\[py-newline-and-indent] keys try to suggest plausible indentation, based on
|
|
|
1910 the indentation of preceding statements. E.g., assuming
|
|
|
1911 py-indent-offset is 4, after you enter
|
|
|
1912 \tif a > 0: \\[py-newline-and-indent]
|
|
|
1913 the cursor will be moved to the position of the `_' (_ is not a
|
|
|
1914 character in the file, it's just used here to indicate the location of
|
|
|
1915 the cursor):
|
|
|
1916 \tif a > 0:
|
|
|
1917 \t _
|
|
|
1918 If you then enter `c = d' \\[py-newline-and-indent], the cursor will move
|
|
|
1919 to
|
|
|
1920 \tif a > 0:
|
|
|
1921 \t c = d
|
|
|
1922 \t _
|
|
|
1923 Python-mode cannot know whether that's what you intended, or whether
|
|
|
1924 \tif a > 0:
|
|
|
1925 \t c = d
|
|
|
1926 \t_
|
|
|
1927 was your intent. In general, Python-mode either reproduces the
|
|
|
1928 indentation of the (closest code or indenting-comment) preceding
|
|
|
1929 statement, or adds an extra py-indent-offset blanks if the preceding
|
|
|
1930 statement has `:' as its last significant (non-whitespace and non-
|
|
|
1931 comment) character. If the suggested indentation is too much, use
|
|
|
1932 \\[py-delete-char] to reduce it.
|
|
|
1933
|
|
|
1934 Continuation lines are given extra indentation. If you don't like the
|
|
|
1935 suggested indentation, change it to something you do like, and Python-
|
|
|
1936 mode will strive to indent later lines of the statement in the same way.
|
|
|
1937
|
|
|
1938 If a line is a continuation line by virtue of being in an unclosed
|
|
|
1939 paren/bracket/brace structure (`list', for short), the suggested
|
|
|
1940 indentation depends on whether the current line contains the first item
|
|
|
1941 in the list. If it does, it's indented py-indent-offset columns beyond
|
|
|
1942 the indentation of the line containing the open bracket. If you don't
|
|
|
1943 like that, change it by hand. The remaining items in the list will mimic
|
|
|
1944 whatever indentation you give to the first item.
|
|
|
1945
|
|
|
1946 If a line is a continuation line because the line preceding it ends with
|
|
|
1947 a backslash, the third and following lines of the statement inherit their
|
|
|
1948 indentation from the line preceding them. The indentation of the second
|
|
|
1949 line in the statement depends on the form of the first (base) line: if
|
|
|
1950 the base line is an assignment statement with anything more interesting
|
|
|
1951 than the backslash following the leftmost assigning `=', the second line
|
|
|
1952 is indented two columns beyond that `='. Else it's indented to two
|
|
|
1953 columns beyond the leftmost solid chunk of non-whitespace characters on
|
|
|
1954 the base line.
|
|
|
1955
|
|
|
1956 Warning: indent-region should not normally be used! It calls \\[indent-for-tab-command]
|
|
|
1957 repeatedly, and as explained above, \\[indent-for-tab-command] can't guess the block
|
|
|
1958 structure you intend.
|
|
|
1959 %c:indent-for-tab-command
|
|
|
1960 %c:py-newline-and-indent
|
|
|
1961 %c:py-delete-char
|
|
|
1962
|
|
|
1963
|
|
|
1964 The next function may be handy when editing code you didn't write:
|
|
|
1965 %c:py-guess-indent-offset
|
|
|
1966
|
|
|
1967
|
|
|
1968 The remaining `indent' functions apply to a region of Python code. They
|
|
|
1969 assume the block structure (equals indentation, in Python) of the region
|
|
|
1970 is correct, and alter the indentation in various ways while preserving
|
|
|
1971 the block structure:
|
|
|
1972 %c:py-indent-region
|
|
|
1973 %c:py-shift-region-left
|
|
|
1974 %c:py-shift-region-right
|
|
|
1975
|
|
|
1976 @MARKING & MANIPULATING REGIONS OF CODE
|
|
|
1977
|
|
|
1978 \\[py-mark-block]\t mark block of lines
|
|
|
1979 \\[mark-python-def-or-class]\t mark smallest enclosing def
|
|
|
1980 \\[universal-argument] \\[mark-python-def-or-class]\t mark smallest enclosing class
|
|
|
1981 \\[comment-region]\t comment out region of code
|
|
|
1982 \\[universal-argument] \\[comment-region]\t uncomment region of code
|
|
|
1983 %c:py-mark-block
|
|
|
1984 %c:mark-python-def-or-class
|
|
|
1985 %c:comment-region
|
|
|
1986
|
|
|
1987 @MOVING POINT
|
|
|
1988
|
|
|
1989 \\[py-previous-statement]\t move to statement preceding point
|
|
|
1990 \\[py-next-statement]\t move to statement following point
|
|
|
1991 \\[py-goto-block-up]\t move up to start of current block
|
|
|
1992 \\[beginning-of-python-def-or-class]\t move to start of def
|
|
|
1993 \\[universal-argument] \\[beginning-of-python-def-or-class]\t move to start of class
|
|
|
1994 \\[end-of-python-def-or-class]\t move to end of def
|
|
|
1995 \\[universal-argument] \\[end-of-python-def-or-class]\t move to end of class
|
|
|
1996
|
|
|
1997 The first two move to one statement beyond the statement that contains
|
|
|
1998 point. A numeric prefix argument tells them to move that many
|
|
|
1999 statements instead. Blank lines, comment lines, and continuation lines
|
|
|
2000 do not count as `statements' for these commands. So, e.g., you can go
|
|
|
2001 to the first code statement in a file by entering
|
|
|
2002 \t\\[beginning-of-buffer]\t to move to the top of the file
|
|
|
2003 \t\\[py-next-statement]\t to skip over initial comments and blank lines
|
|
|
2004 Or do `\\[py-previous-statement]' with a huge prefix argument.
|
|
|
2005 %c:py-previous-statement
|
|
|
2006 %c:py-next-statement
|
|
|
2007 %c:py-goto-block-up
|
|
|
2008 %c:beginning-of-python-def-or-class
|
|
|
2009 %c:end-of-python-def-or-class
|
|
|
2010
|
|
|
2011 @LITTLE-KNOWN EMACS COMMANDS PARTICULARLY USEFUL IN PYTHON MODE
|
|
|
2012
|
|
|
2013 `\\[indent-new-comment-line]' is handy for entering a multi-line comment.
|
|
|
2014
|
|
|
2015 `\\[set-selective-display]' with a `small' prefix arg is ideally suited for viewing the
|
|
|
2016 overall class and def structure of a module.
|
|
|
2017
|
|
|
2018 `\\[back-to-indentation]' moves point to a line's first non-blank character.
|
|
|
2019
|
|
|
2020 `\\[indent-relative]' is handy for creating odd indentation.
|
|
|
2021
|
|
|
2022 @OTHER EMACS HINTS
|
|
|
2023
|
|
|
2024 If you don't like the default value of a variable, change its value to
|
|
|
2025 whatever you do like by putting a `setq' line in your .emacs file.
|
|
|
2026 E.g., to set the indentation increment to 4, put this line in your
|
|
|
2027 .emacs:
|
|
|
2028 \t(setq py-indent-offset 4)
|
|
|
2029 To see the value of a variable, do `\\[describe-variable]' and enter the variable
|
|
|
2030 name at the prompt.
|
|
|
2031
|
|
|
2032 When entering a key sequence like `C-c C-n', it is not necessary to
|
|
|
2033 release the CONTROL key after doing the `C-c' part -- it suffices to
|
|
|
2034 press the CONTROL key, press and release `c' (while still holding down
|
|
|
2035 CONTROL), press and release `n' (while still holding down CONTROL), &
|
|
|
2036 then release CONTROL.
|
|
|
2037
|
|
|
2038 Entering Python mode calls with no arguments the value of the variable
|
|
|
2039 `python-mode-hook', if that value exists and is not nil; for backward
|
|
|
2040 compatibility it also tries `py-mode-hook'; see the `Hooks' section of
|
|
|
2041 the Elisp manual for details.
|
|
|
2042
|
|
|
2043 Obscure: When python-mode is first loaded, it looks for all bindings
|
|
|
2044 to newline-and-indent in the global keymap, and shadows them with
|
|
|
2045 local bindings to py-newline-and-indent."))
|
|
|
2046
|
|
|
2047
|
|
|
2048 ;; Helper functions
|
|
|
2049 (defvar py-parse-state-re
|
|
|
2050 (concat
|
|
|
2051 "^[ \t]*\\(if\\|elif\\|else\\|while\\|def\\|class\\)\\>"
|
|
|
2052 "\\|"
|
|
|
2053 "^[^ #\t\n]"))
|
|
|
2054
|
|
|
2055 ;; returns the parse state at point (see parse-partial-sexp docs)
|
|
|
2056 (defun py-parse-state ()
|
|
|
2057 (save-excursion
|
|
|
2058 (let ((here (point))
|
|
|
2059 pps done ci)
|
|
|
2060 (while (not done)
|
|
|
2061 ;; back up to the first preceding line (if any; else start of
|
|
|
2062 ;; buffer) that begins with a popular Python keyword, or a
|
|
|
2063 ;; non- whitespace and non-comment character. These are good
|
|
|
2064 ;; places to start parsing to see whether where we started is
|
|
|
2065 ;; at a non-zero nesting level. It may be slow for people who
|
|
|
2066 ;; write huge code blocks or huge lists ... tough beans.
|
|
|
2067 (re-search-backward py-parse-state-re nil 'move)
|
|
|
2068 (setq ci (current-indentation))
|
|
|
2069 (beginning-of-line)
|
|
|
2070 (save-excursion
|
|
|
2071 (setq pps (parse-partial-sexp (point) here)))
|
|
|
2072 ;; make sure we don't land inside a triple-quoted string
|
|
|
2073 (setq done (or (zerop ci)
|
|
|
2074 (not (nth 3 pps))
|
|
|
2075 (bobp)))
|
|
|
2076 )
|
|
|
2077 pps)))
|
|
|
2078
|
|
|
2079 ;; if point is at a non-zero nesting level, returns the number of the
|
|
|
2080 ;; character that opens the smallest enclosing unclosed list; else
|
|
|
2081 ;; returns nil.
|
|
|
2082 (defun py-nesting-level ()
|
|
|
2083 (let ((status (py-parse-state)) )
|
|
|
2084 (if (zerop (car status))
|
|
|
2085 nil ; not in a nest
|
|
|
2086 (car (cdr status))))) ; char# of open bracket
|
|
|
2087
|
|
|
2088 ;; t iff preceding line ends with backslash that's not in a comment
|
|
|
2089 (defun py-backslash-continuation-line-p ()
|
|
|
2090 (save-excursion
|
|
|
2091 (beginning-of-line)
|
|
|
2092 (and
|
|
|
2093 ;; use a cheap test first to avoid the regexp if possible
|
|
|
2094 ;; use 'eq' because char-after may return nil
|
|
|
2095 (eq (char-after (- (point) 2)) ?\\ )
|
|
|
2096 ;; make sure; since eq test passed, there is a preceding line
|
|
|
2097 (forward-line -1) ; always true -- side effect
|
|
|
2098 (looking-at py-continued-re))))
|
|
|
2099
|
|
|
2100 ;; t iff current line is a continuation line
|
|
|
2101 (defun py-continuation-line-p ()
|
|
|
2102 (save-excursion
|
|
|
2103 (beginning-of-line)
|
|
|
2104 (or (py-backslash-continuation-line-p)
|
|
|
2105 (py-nesting-level))))
|
|
|
2106
|
|
|
2107 ;; go to initial line of current statement; usually this is the line
|
|
|
2108 ;; we're on, but if we're on the 2nd or following lines of a
|
|
|
2109 ;; continuation block, we need to go up to the first line of the
|
|
|
2110 ;; block.
|
|
|
2111 ;;
|
|
|
2112 ;; Tricky: We want to avoid quadratic-time behavior for long continued
|
|
|
2113 ;; blocks, whether of the backslash or open-bracket varieties, or a
|
|
|
2114 ;; mix of the two. The following manages to do that in the usual
|
|
|
2115 ;; cases.
|
|
|
2116 (defun py-goto-initial-line ()
|
|
|
2117 (let ( open-bracket-pos )
|
|
|
2118 (while (py-continuation-line-p)
|
|
|
2119 (beginning-of-line)
|
|
|
2120 (if (py-backslash-continuation-line-p)
|
|
|
2121 (while (py-backslash-continuation-line-p)
|
|
|
2122 (forward-line -1))
|
|
|
2123 ;; else zip out of nested brackets/braces/parens
|
|
|
2124 (while (setq open-bracket-pos (py-nesting-level))
|
|
|
2125 (goto-char open-bracket-pos)))))
|
|
|
2126 (beginning-of-line))
|
|
|
2127
|
|
|
2128 ;; go to point right beyond final line of current statement; usually
|
|
|
2129 ;; this is the start of the next line, but if this is a multi-line
|
|
|
2130 ;; statement we need to skip over the continuation lines. Tricky:
|
|
|
2131 ;; Again we need to be clever to avoid quadratic time behavior.
|
|
|
2132 (defun py-goto-beyond-final-line ()
|
|
|
2133 (forward-line 1)
|
|
|
2134 (let (state)
|
|
|
2135 (while (and (py-continuation-line-p)
|
|
|
2136 (not (eobp)))
|
|
|
2137 ;; skip over the backslash flavor
|
|
|
2138 (while (and (py-backslash-continuation-line-p)
|
|
|
2139 (not (eobp)))
|
|
|
2140 (forward-line 1))
|
|
|
2141 ;; if in nest, zip to the end of the nest
|
|
|
2142 (setq state (py-parse-state))
|
|
|
2143 (if (and (not (zerop (car state)))
|
|
|
2144 (not (eobp)))
|
|
|
2145 (progn
|
|
|
2146 ;; BUG ALERT: I could swear, from reading the docs, that
|
|
|
2147 ;; the 3rd argument should be plain 0
|
|
|
2148 (parse-partial-sexp (point) (point-max) (- 0 (car state))
|
|
|
2149 nil state)
|
|
|
2150 (forward-line 1))))))
|
|
|
2151
|
|
|
2152 ;; t iff statement opens a block == iff it ends with a colon that's
|
|
|
2153 ;; not in a comment. point should be at the start of a statement
|
|
|
2154 (defun py-statement-opens-block-p ()
|
|
|
2155 (save-excursion
|
|
|
2156 (let ((start (point))
|
|
|
2157 (finish (progn (py-goto-beyond-final-line) (1- (point))))
|
|
|
2158 (searching t)
|
|
|
2159 (answer nil)
|
|
|
2160 state)
|
|
|
2161 (goto-char start)
|
|
|
2162 (while searching
|
|
|
2163 ;; look for a colon with nothing after it except whitespace, and
|
|
|
2164 ;; maybe a comment
|
|
|
2165 (if (re-search-forward ":\\([ \t]\\|\\\\\n\\)*\\(#.*\\)?$"
|
|
|
2166 finish t)
|
|
|
2167 (if (eq (point) finish) ; note: no `else' clause; just
|
|
|
2168 ; keep searching if we're not at
|
|
|
2169 ; the end yet
|
|
|
2170 ;; sure looks like it opens a block -- but it might
|
|
|
2171 ;; be in a comment
|
|
|
2172 (progn
|
|
|
2173 (setq searching nil) ; search is done either way
|
|
|
2174 (setq state (parse-partial-sexp start
|
|
|
2175 (match-beginning 0)))
|
|
|
2176 (setq answer (not (nth 4 state)))))
|
|
|
2177 ;; search failed: couldn't find another interesting colon
|
|
|
2178 (setq searching nil)))
|
|
|
2179 answer)))
|
|
|
2180
|
|
|
2181 (defun py-statement-closes-block-p ()
|
|
|
2182 ;; true iff the current statement `closes' a block == the line
|
|
|
2183 ;; starts with `return', `raise', `break' or `continue'. doesn't
|
|
|
2184 ;; catch embedded statements
|
|
|
2185 (let ((here (point)))
|
|
|
2186 (back-to-indentation)
|
|
|
2187 (prog1
|
|
|
2188 (looking-at "\\(return\\|raise\\|break\\|continue\\)\\>")
|
|
|
2189 (goto-char here))))
|
|
|
2190
|
|
|
2191 ;; go to point right beyond final line of block begun by the current
|
|
|
2192 ;; line. This is the same as where py-goto-beyond-final-line goes
|
|
|
2193 ;; unless we're on colon line, in which case we go to the end of the
|
|
|
2194 ;; block. assumes point is at bolp
|
|
|
2195 (defun py-goto-beyond-block ()
|
|
|
2196 (if (py-statement-opens-block-p)
|
|
|
2197 (py-mark-block nil 'just-move)
|
|
|
2198 (py-goto-beyond-final-line)))
|
|
|
2199
|
|
|
2200 ;; go to start of first statement (not blank or comment or
|
|
|
2201 ;; continuation line) at or preceding point. returns t if there is
|
|
|
2202 ;; one, else nil
|
|
|
2203 (defun py-goto-statement-at-or-above ()
|
|
|
2204 (py-goto-initial-line)
|
|
|
2205 (if (looking-at py-blank-or-comment-re)
|
|
|
2206 ;; skip back over blank & comment lines
|
|
|
2207 ;; note: will skip a blank or comment line that happens to be
|
|
|
2208 ;; a continuation line too
|
|
|
2209 (if (re-search-backward "^[ \t]*[^ \t#\n]" nil t)
|
|
|
2210 (progn (py-goto-initial-line) t)
|
|
|
2211 nil)
|
|
|
2212 t))
|
|
|
2213
|
|
|
2214 ;; go to start of first statement (not blank or comment or
|
|
|
2215 ;; continuation line) following the statement containing point returns
|
|
|
2216 ;; t if there is one, else nil
|
|
|
2217 (defun py-goto-statement-below ()
|
|
|
2218 (beginning-of-line)
|
|
|
2219 (let ((start (point)))
|
|
|
2220 (py-goto-beyond-final-line)
|
|
|
2221 (while (and
|
|
|
2222 (looking-at py-blank-or-comment-re)
|
|
|
2223 (not (eobp)))
|
|
|
2224 (forward-line 1))
|
|
|
2225 (if (eobp)
|
|
|
2226 (progn (goto-char start) nil)
|
|
|
2227 t)))
|
|
|
2228
|
|
|
2229 ;; go to start of statement, at or preceding point, starting with
|
|
|
2230 ;; keyword KEY. Skips blank lines and non-indenting comments upward
|
|
|
2231 ;; first. If that statement starts with KEY, done, else go back to
|
|
|
2232 ;; first enclosing block starting with KEY. If successful, leaves
|
|
|
2233 ;; point at the start of the KEY line & returns t. Else leaves point
|
|
|
2234 ;; at an undefined place & returns nil.
|
|
|
2235 (defun py-go-up-tree-to-keyword (key)
|
|
|
2236 ;; skip blanks and non-indenting #
|
|
|
2237 (py-goto-initial-line)
|
|
|
2238 (while (and
|
|
|
2239 (looking-at "[ \t]*\\($\\|#[^ \t\n]\\)")
|
|
|
2240 (zerop (forward-line -1))) ; go back
|
|
|
2241 nil)
|
|
|
2242 (py-goto-initial-line)
|
|
|
2243 (let* ((re (concat "[ \t]*" key "\\b"))
|
|
|
2244 (case-fold-search nil) ; let* so looking-at sees this
|
|
|
2245 (found (looking-at re))
|
|
|
2246 (dead nil))
|
|
|
2247 (while (not (or found dead))
|
|
|
2248 (condition-case nil ; in case no enclosing block
|
|
|
2249 (py-goto-block-up 'no-mark)
|
|
|
2250 (error (setq dead t)))
|
|
|
2251 (or dead (setq found (looking-at re))))
|
|
|
2252 (beginning-of-line)
|
|
|
2253 found))
|
|
|
2254
|
|
|
2255 ;; return string in buffer from start of indentation to end of line;
|
|
|
2256 ;; prefix "..." if leading whitespace was skipped
|
|
|
2257 (defun py-suck-up-leading-text ()
|
|
|
2258 (save-excursion
|
|
|
2259 (back-to-indentation)
|
|
|
2260 (concat
|
|
|
2261 (if (bolp) "" "...")
|
|
|
2262 (buffer-substring (point) (progn (end-of-line) (point))))))
|
|
|
2263
|
|
|
2264 ;; assuming point at bolp, return first keyword ([a-z]+) on the line,
|
|
|
2265 ;; as a Lisp symbol; return nil if none
|
|
|
2266 (defun py-suck-up-first-keyword ()
|
|
|
2267 (let ((case-fold-search nil))
|
|
|
2268 (if (looking-at "[ \t]*\\([a-z]+\\)\\b")
|
|
|
2269 (intern (buffer-substring (match-beginning 1) (match-end 1)))
|
|
|
2270 nil)))
|
|
|
2271
|
|
|
2272 (defun py-make-temp-name ()
|
|
|
2273 (make-temp-name
|
|
|
2274 (concat (file-name-as-directory py-temp-directory) "python")))
|
|
|
2275
|
|
|
2276 (defun py-delete-file-silently (fname)
|
|
|
2277 (condition-case nil
|
|
|
2278 (delete-file fname)
|
|
|
2279 (error nil)))
|
|
|
2280
|
|
|
2281 (defun py-kill-emacs-hook ()
|
|
|
2282 ;; delete our temp files
|
|
|
2283 (while py-file-queue
|
|
|
2284 (py-delete-file-silently (car py-file-queue))
|
|
|
2285 (setq py-file-queue (cdr py-file-queue)))
|
|
|
2286 (if (not (or py-this-is-lucid-emacs-p py-this-is-emacs-19-p))
|
|
|
2287 ;; run the hook we inherited, if any
|
|
|
2288 (and py-inherited-kill-emacs-hook
|
|
|
2289 (funcall py-inherited-kill-emacs-hook))))
|
|
|
2290
|
|
|
2291 ;; make PROCESS's buffer visible, append STRING to it, and force
|
|
|
2292 ;; display; also make shell-mode believe the user typed this string,
|
|
|
2293 ;; so that kill-output-from-shell and show-output-from-shell work
|
|
|
2294 ;; "right"
|
|
|
2295 (defun py-append-to-process-buffer (process string)
|
|
|
2296 (let ((cbuf (current-buffer))
|
|
|
2297 (pbuf (process-buffer process))
|
|
|
2298 (py-scroll-process-buffer t))
|
|
|
2299 (set-buffer pbuf)
|
|
|
2300 (goto-char (point-max))
|
|
|
2301 (move-marker (process-mark process) (point))
|
|
|
2302 (if (not (or py-this-is-emacs-19-p
|
|
|
2303 py-this-is-lucid-emacs-p))
|
|
|
2304 (move-marker last-input-start (point))) ; muck w/ shell-mode
|
|
|
2305 (funcall (process-filter process) process string)
|
|
|
2306 (if (not (or py-this-is-emacs-19-p
|
|
|
2307 py-this-is-lucid-emacs-p))
|
|
|
2308 (move-marker last-input-end (point))) ; muck w/ shell-mode
|
|
|
2309 (set-buffer cbuf))
|
|
|
2310 (sit-for 0))
|
|
|
2311
|
|
|
2312
|
|
|
2313
|
|
|
2314 (defconst py-version "2.67"
|
|
|
2315 "`python-mode' version number.")
|
|
|
2316 (defconst py-help-address "python-mode@python.org"
|
|
|
2317 "Address accepting submission of bug reports.")
|
|
|
2318
|
|
|
2319 (defun py-version ()
|
|
|
2320 "Echo the current version of `python-mode' in the minibuffer."
|
|
|
2321 (interactive)
|
|
|
2322 (message "Using `python-mode' version %s" py-version)
|
|
|
2323 (py-keep-region-active))
|
|
|
2324
|
|
|
2325 ;; only works under Emacs 19
|
|
|
2326 ;(eval-when-compile
|
|
|
2327 ; (require 'reporter))
|
|
|
2328
|
|
|
2329 (defun py-submit-bug-report (enhancement-p)
|
|
|
2330 "Submit via mail a bug report on `python-mode'.
|
|
|
2331 With \\[universal-argument] just submit an enhancement request."
|
|
|
2332 (interactive
|
|
|
2333 (list (not (y-or-n-p
|
|
|
2334 "Is this a bug report? (hit `n' to send other comments) "))))
|
|
|
2335 (let ((reporter-prompt-for-summary-p (if enhancement-p
|
|
|
2336 "(Very) brief summary: "
|
|
|
2337 t)))
|
|
|
2338 (require 'reporter)
|
|
|
2339 (reporter-submit-bug-report
|
|
|
2340 py-help-address ;address
|
|
|
2341 (concat "python-mode " py-version) ;pkgname
|
|
|
2342 ;; varlist
|
|
|
2343 (if enhancement-p nil
|
|
|
2344 '(py-python-command
|
|
|
2345 py-indent-offset
|
|
|
2346 py-block-comment-prefix
|
|
|
2347 py-scroll-process-buffer
|
|
|
2348 py-temp-directory
|
|
|
2349 py-beep-if-tab-change))
|
|
|
2350 nil ;pre-hooks
|
|
|
2351 nil ;post-hooks
|
|
|
2352 "Dear Barry,") ;salutation
|
|
|
2353 (if enhancement-p nil
|
|
|
2354 (set-mark (point))
|
|
|
2355 (insert
|
|
|
2356 "Please replace this text with a sufficiently large code sample\n\
|
|
|
2357 and an exact recipe so that I can reproduce your problem. Failure\n\
|
|
|
2358 to do so may mean a greater delay in fixing your bug.\n\n")
|
|
|
2359 (exchange-point-and-mark)
|
|
|
2360 (py-keep-region-active))))
|
|
|
2361
|
|
|
2362
|
|
|
2363 ;; arrange to kill temp files when Emacs exists
|
|
|
2364 (if (or py-this-is-emacs-19-p py-this-is-lucid-emacs-p)
|
|
|
2365 (add-hook 'kill-emacs-hook 'py-kill-emacs-hook)
|
|
|
2366 ;; have to trust that other people are as respectful of our hook
|
|
|
2367 ;; fiddling as we are of theirs
|
|
|
2368 (if (boundp 'py-inherited-kill-emacs-hook)
|
|
|
2369 ;; we were loaded before -- trust others not to have screwed us
|
|
|
2370 ;; in the meantime (no choice, really)
|
|
|
2371 nil
|
|
|
2372 ;; else arrange for our hook to run theirs
|
|
|
2373 (setq py-inherited-kill-emacs-hook kill-emacs-hook)
|
|
|
2374 (setq kill-emacs-hook 'py-kill-emacs-hook)))
|
|
|
2375
|
|
|
2376
|
|
|
2377
|
|
|
2378 (provide 'python-mode)
|
|
|
2379 ;;; python-mode.el ends here
|
