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annotate .elisp/doctest-mode.el @ 171:2f865a7f84e6
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| author | Augie Fackler <durin42@gmail.com> |
|---|---|
| date | Wed, 16 Dec 2009 22:18:43 -0600 |
| parents | b5d75594b356 |
| children | 014e745b2d04 |
| rev | line source |
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| 0 | 1 ;;; doctest-mode.el --- Major mode for editing Python doctest files |
| 2 | |
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3 ;; Copyright (C) 2004 Edward Loper |
| 0 | 4 |
| 5 ;; Author: Edward Loper | |
| 6 ;; Maintainer: edloper@alum.mit.edu | |
| 7 ;; Created: Aug 2004 | |
| 8 ;; Keywords: python doctest unittest test docstring | |
| 9 | |
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10 (defconst doctest-version "0.2" |
| 0 | 11 "`doctest-mode' version number.") |
| 12 | |
| 13 ;; This software is provided as-is, without express or implied | |
| 14 ;; warranty. Permission to use, copy, modify, distribute or sell this | |
| 15 ;; software, without fee, for any purpose and by any individual or | |
| 16 ;; organization, is hereby granted, provided that the above copyright | |
| 17 ;; notice and this paragraph appear in all copies. | |
| 18 | |
| 19 ;; This is a major mode for editing text files that contain Python | |
| 20 ;; doctest examples. Doctest is a testing framework for Python that | |
| 21 ;; emulates an interactive session, and checks the result of each | |
| 22 ;; command. For more information, see the Python library reference: | |
| 23 ;; <http://docs.python.org/lib/module-doctest.html> | |
| 24 | |
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25 ;; Known bugs: |
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26 ;; - Some places assume prompts are 4 chars (but they can be 3 |
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27 ;; if they're bare). |
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28 ;; - String literals are not colored correctly. (We need to color |
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29 ;; string literals on source lines, but *not* output lines or |
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30 ;; text lines; this is hard to do.) |
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31 ;; - Output lines starting with "..." are mistakenly interpreted |
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32 ;; as (continuation) source lines. |
| 0 | 33 |
| 34 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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35 ;; Customizable Constants |
| 0 | 36 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 37 | |
| 38 (defgroup doctest nil | |
| 39 "Support for the Python doctest framework" | |
| 40 :group 'languages | |
| 41 :prefix "doctest-") | |
| 42 | |
| 43 (defcustom doctest-default-margin 4 | |
| 44 "The default pre-prompt margin for doctest examples." | |
| 45 :type 'integer | |
| 46 :group 'doctest) | |
| 47 | |
| 48 (defcustom doctest-avoid-trailing-whitespace t | |
| 49 "If true, then delete trailing whitespace when inserting a newline." | |
| 50 :type 'boolean | |
| 51 :group 'doctest) | |
| 52 | |
| 53 (defcustom doctest-temp-directory | |
| 54 (let ((ok '(lambda (x) | |
| 55 (and x | |
| 56 (setq x (expand-file-name x)) ; always true | |
| 57 (file-directory-p x) | |
| 58 (file-writable-p x) | |
| 59 x)))) | |
| 60 (or (funcall ok (getenv "TMPDIR")) | |
| 61 (funcall ok "/usr/tmp") | |
| 62 (funcall ok "/tmp") | |
| 63 (funcall ok "/var/tmp") | |
| 64 (funcall ok ".") | |
| 65 (error (concat "Couldn't find a usable temp directory -- " | |
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66 "set `doctest-temp-directory'")))) |
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67 |
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68 "*Directory used for temporary files created when running doctest. |
| 0 | 69 By default, the first directory from this list that exists and that you |
| 70 can write into: the value (if any) of the environment variable TMPDIR, | |
| 71 /usr/tmp, /tmp, /var/tmp, or the current directory." | |
| 72 :type 'string | |
| 73 :group 'doctest) | |
| 74 | |
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75 (defcustom hide-example-source t |
| 0 | 76 "If true, then don't display the example source code for each |
| 77 failure in the results buffer." | |
| 78 :type 'boolean | |
| 79 :group 'doctest) | |
| 80 | |
| 81 (defcustom doctest-python-command "python" | |
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82 "Shell command used to start the python interpreter") |
| 0 | 83 |
| 84 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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85 ;; Fonts |
| 0 | 86 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 87 | |
| 88 (defface doctest-prompt-face | |
| 89 '((((class color) (background dark)) | |
| 90 (:foreground "#68f")) | |
| 91 (t (:foreground "#226"))) | |
| 92 "Face for Python prompts in doctest examples." | |
| 93 :group 'doctest) | |
| 94 | |
| 95 (defface doctest-output-face | |
| 96 '((((class color) (background dark)) | |
| 97 (:foreground "#afd")) | |
| 98 (t (:foreground "#262"))) | |
| 99 "Face for the output of doctest examples." | |
| 100 :group 'doctest) | |
| 101 | |
| 102 (defface doctest-output-marker-face | |
| 103 '((((class color) (background dark)) | |
| 104 (:foreground "#0f0")) | |
| 105 (t (:foreground "#080"))) | |
| 106 "Face for markers in the output of doctest examples." | |
| 107 :group 'doctest) | |
| 108 | |
| 109 (defface doctest-output-traceback-face | |
| 110 '((((class color) (background dark)) | |
| 111 (:foreground "#f88")) | |
| 112 (t (:foreground "#622"))) | |
| 113 "Face for traceback headers in the output of doctest examples." | |
| 114 :group 'doctest) | |
| 115 | |
| 116 (defface doctest-results-divider-face | |
| 117 '((((class color) (background dark)) | |
| 118 (:foreground "#08f")) | |
| 119 (t (:foreground "#00f"))) | |
| 120 "Face for dividers in the doctest results window." | |
| 121 :group 'doctest) | |
| 122 | |
| 123 (defface doctest-results-loc-face | |
| 124 '((((class color) (background dark)) | |
| 125 (:foreground "#0f8")) | |
| 126 (t (:foreground "#084"))) | |
| 127 "Face for location headers in the doctest results window." | |
| 128 :group 'doctest) | |
| 129 | |
| 130 (defface doctest-results-header-face | |
| 131 '((((class color) (background dark)) | |
| 132 (:foreground "#8ff")) | |
| 133 (t (:foreground "#088"))) | |
| 134 "Face for sub-headers in the doctest results window." | |
| 135 :group 'doctest) | |
| 136 | |
| 137 (defface doctest-results-selection-face | |
| 138 '((((class color) (background dark)) | |
| 139 (:foreground "#ff0" :background "#008")) | |
| 140 (t (:background "#088" :foreground "#fff"))) | |
| 141 "Face for selected failure's location header in the results window." | |
| 142 :group 'doctest) | |
| 143 | |
| 144 (defface doctest-selection-face | |
| 145 '((((class color) (background dark)) | |
| 146 (:foreground "#ff0" :background "#00f" :bold t)) | |
| 147 (t (:foreground "#f00"))) | |
| 148 "Face for selected example's prompt" | |
| 149 :group 'doctest) | |
| 150 | |
| 151 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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152 ;; Constants |
| 0 | 153 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 154 | |
| 155 (defconst doctest-prompt-re | |
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156 "^\\([ \t]*\\)\\(>>> ?\\|[.][.][.] ?\\)\\([ \t]*\\)" |
| 0 | 157 "Regular expression for doctest prompts. It defines three groups: |
| 158 the pre-prompt margin; the prompt; and the post-prompt indentation.") | |
| 159 | |
| 160 (defconst doctest-open-block-re | |
| 161 "[^\n]+:[ \t]*\\(#.*\\)?$" | |
| 162 "Regular expression for a line that opens a block") | |
| 163 | |
| 164 (defconst doctest-close-block-re | |
| 165 "\\(return\\|raise\\|break\\|continue\\|pass\\)\\b" | |
| 166 "Regular expression for a line that closes a block") | |
| 167 | |
| 168 (defconst doctest-outdent-re | |
| 169 (concat "\\(" (mapconcat 'identity | |
| 170 '("else:" | |
| 171 "except\\(\\s +.*\\)?:" | |
| 172 "finally:" | |
| 173 "elif\\s +.*:") | |
| 174 "\\|") | |
| 175 "\\)") | |
| 176 "Regular expression for a line that should be outdented. Any line | |
| 177 that matches `doctest-outdent-re', but does not follow a line matching | |
| 178 `doctest-no-outdent-re', will be outdented.") | |
| 179 | |
| 180 (defconst doctest-no-outdent-re | |
| 181 (concat | |
| 182 "\\(" | |
| 183 (mapconcat 'identity | |
| 184 (list "try:" | |
| 185 "except\\(\\s +.*\\)?:" | |
| 186 "while\\s +.*:" | |
| 187 "for\\s +.*:" | |
| 188 "if\\s +.*:" | |
| 189 "elif\\s +.*:" | |
| 190 "\\(return\\|raise\\|break\\|continue\\|pass\\)[ \t\n]" | |
| 191 ) | |
| 192 "\\|") | |
| 193 "\\)") | |
| 194 "Regular expression matching lines not to outdent after. Any line | |
| 195 that matches `doctest-outdent-re', but does not follow a line matching | |
| 196 `doctest-no-outdent-re', will be outdented.") | |
| 197 | |
| 198 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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199 ;; Colorization support (font-lock mode) |
| 0 | 200 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 201 | |
| 202 ;; Define the font-lock keyword table. | |
| 203 (defconst doctest-font-lock-keywords | |
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204 (let ((prompt "^[ \t]*\\(>>>\\|\\.\\.\\.\\)") |
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205 (kw1 (mapconcat 'identity |
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206 '("and" "assert" "break" "class" |
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207 "continue" "def" "del" "elif" |
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208 "else" "except" "exec" "for" |
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209 "from" "global" "if" "import" |
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210 "in" "is" "lambda" "not" |
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211 "or" "pass" "print" "raise" |
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212 "return" "while" "yield" |
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213 ) |
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214 "\\|")) |
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215 (kw2 (mapconcat 'identity |
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216 '("else:" "except:" "finally:" "try:") |
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217 "\\|")) |
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218 (kw3 (mapconcat 'identity |
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219 '("ArithmeticError" "AssertionError" |
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220 "AttributeError" "DeprecationWarning" "EOFError" |
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221 "Ellipsis" "EnvironmentError" "Exception" "False" |
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222 "FloatingPointError" "FutureWarning" "IOError" |
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223 "ImportError" "IndentationError" "IndexError" |
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224 "KeyError" "KeyboardInterrupt" "LookupError" |
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225 "MemoryError" "NameError" "None" "NotImplemented" |
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226 "NotImplementedError" "OSError" "OverflowError" |
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227 "OverflowWarning" "PendingDeprecationWarning" |
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228 "ReferenceError" "RuntimeError" "RuntimeWarning" |
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229 "StandardError" "StopIteration" "SyntaxError" |
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230 "SyntaxWarning" "SystemError" "SystemExit" |
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231 "TabError" "True" "TypeError" "UnboundLocalError" |
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232 "UnicodeDecodeError" "UnicodeEncodeError" |
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233 "UnicodeError" "UnicodeTranslateError" |
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234 "UserWarning" "ValueError" "Warning" |
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235 "ZeroDivisionError" "__debug__" |
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236 "__import__" "__name__" "abs" "apply" "basestring" |
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237 "bool" "buffer" "callable" "chr" "classmethod" |
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238 "cmp" "coerce" "compile" "complex" "copyright" |
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239 "delattr" "dict" "dir" "divmod" |
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240 "enumerate" "eval" "execfile" "exit" "file" |
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241 "filter" "float" "getattr" "globals" "hasattr" |
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242 "hash" "hex" "id" "input" "int" "intern" |
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243 "isinstance" "issubclass" "iter" "len" "license" |
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244 "list" "locals" "long" "map" "max" "min" "object" |
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245 "oct" "open" "ord" "pow" "property" "range" |
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246 "raw_input" "reduce" "reload" "repr" "round" |
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247 "setattr" "slice" "staticmethod" "str" "sum" |
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248 "super" "tuple" "type" "unichr" "unicode" "vars" |
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249 "xrange" "zip") |
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250 "\\|")) |
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251 (pseudokw (mapconcat 'identity |
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252 '("self" "None" "True" "False" "Ellipsis") |
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253 "\\|")) |
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254 (brk "\\([ \t(]\\|$\\)") |
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255 ) |
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256 `( |
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257 ;; The following pattern colorizes source lines. In particular, |
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258 ;; it first matches prompts, and then looks for any of the |
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259 ;; following matches *on the same line* as the prompt. It uses |
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260 ;; the form: |
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261 ;; |
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262 ;; (MATCHER MATCH-HIGHLIGHT |
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263 ;; (ANCHOR-MATCHER nil nil MATCH-HIGHLIGHT) |
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264 ;; ... |
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265 ;; (ANCHOR-MATCHER nil nil MATCH-HIGHLIGHT)) |
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266 ;; |
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267 ;; See the variable documentation for font-lock-keywords for a |
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268 ;; description of what each of those means. |
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269 (,prompt (1 'doctest-prompt-face) |
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270 ;; classes |
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271 ("\\b\\(class\\)[ \t]+\\([a-zA-Z_]+[a-zA-Z0-9_]*\\)" |
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272 nil nil (1 'font-lock-keyword-face) |
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273 (2 'font-lock-type-face)) |
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274 ;; functions |
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275 ("\\b\\(def\\)[ \t]+\\([a-zA-Z_]+[a-zA-Z0-9_]*\\)" |
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276 nil nil (1 'font-lock-keyword-face) (2 'font-lock-type-face)) |
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277 ;; keywords |
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278 (,(concat "\\b\\(" kw1 "\\)" brk) |
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279 nil nil (1 'font-lock-keyword-face)) |
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280 ;; builtins when they don't appear as object attributes |
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281 (,(concat "\\(\\b\\|[.]\\)\\(" kw3 "\\)" brk) |
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282 nil nil (2 'font-lock-keyword-face)) |
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283 ;; block introducing keywords with immediately |
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284 ;; following colons. Yes "except" is in both lists. |
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285 (,(concat "\\b\\(" kw2 "\\)" brk) |
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286 nil nil (1 'font-lock-keyword-face)) |
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287 ;; `as' but only in "import foo as bar" |
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288 ("[ \t]*\\(\\bfrom\\b.*\\)?\\bimport\\b.*\\b\\(as\\)\\b" |
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289 nil nil (2 'font-lock-keyword-face)) |
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290 ;; pseudo-keywords |
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291 (,(concat "\\b\\(" pseudokw "\\)" brk) |
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292 nil nil (1 'font-lock-keyword-face)) |
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293 ;; comments |
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294 ("\\(#.*\\)" |
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295 nil nil (1 'font-lock-comment-face))) |
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296 |
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297 ;; The following pattern colorizes output lines. In particular, |
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298 ;; it uses doctest-output-line-matcher to check if this is an |
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299 ;; output line, and if so, it colorizes it, and any special |
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300 ;; markers it contains. |
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301 (doctest-output-line-matcher |
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302 (0 'doctest-output-face t) |
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303 ("\\.\\.\\." (beginning-of-line) (end-of-line) |
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304 (0 'doctest-output-marker-face t)) |
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305 ("<BLANKLINE>" (beginning-of-line) (end-of-line) |
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306 (0 'doctest-output-marker-face t)) |
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307 ("^Traceback (most recent call last):" (beginning-of-line) (end-of-line) |
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308 (0 'doctest-output-traceback-face t)) |
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309 ("^Traceback (innermost last):" (beginning-of-line) (end-of-line) |
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310 (0 'doctest-output-traceback-face t)) |
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311 ) |
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312 |
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313 ;; A PS1 prompt followed by a non-space is an error. |
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314 ("^[ \t]*\\(>>>[^ \t\n][^\n]*\\)" (1 'font-lock-warning-face t)) |
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315 |
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316 ;; Selected example (to highlight selected failure) |
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317 (doctest-selection-matcher (0 'doctest-selection-face t)) |
| 0 | 318 )) |
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319 "Expressions to highlight in Doctest mode.") |
| 0 | 320 |
| 321 (defun doctest-output-line-matcher (limit) | |
| 322 "A `font-lock-keyword' MATCHER that returns t if the current | |
| 323 line is the expected output for a doctest example, and if so, | |
| 324 sets `match-data' so that group 0 spans the current line." | |
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325 ;; The real work is done by find-doctest-output-line. |
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326 (when (find-doctest-output-line limit) |
| 0 | 327 ;; If we found one, then mark the entire line. |
| 328 (beginning-of-line) | |
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329 (search-forward-regexp "[^\n]*" limit))) |
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330 |
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331 ;; [XX] Under construction. |
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332 (defun doctest-selection-matcher (limit) |
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333 (let (found-it) |
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334 (while (and (not found-it) |
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335 (search-forward-regexp "^[ \t]*\\(>>>\\|[.][.][.]\\)" |
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336 limit t)) |
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337 (if (get-text-property (point) 'doctest-selected) |
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338 (setq found-it t))) |
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339 found-it)) |
| 0 | 340 |
| 341 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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342 ;; Source line indentation |
| 0 | 343 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 344 | |
| 345 (defun doctest-indent-source-line (&optional dedent-only) | |
| 346 "Re-indent the current line, as doctest source code. I.e., add a | |
| 347 prompt to the current line if it doesn't have one, and re-indent the | |
| 348 source code (to the right of the prompt). If `dedent-only' is true, | |
| 349 then don't increase the indentation level any." | |
| 350 (interactive "*") | |
| 351 (let ((indent-end nil)) | |
| 352 (save-excursion | |
| 353 (beginning-of-line) | |
| 354 (let ((new-indent (doctest-current-source-line-indentation dedent-only)) | |
| 355 (new-margin (doctest-current-source-line-margin)) | |
| 356 (line-had-prompt (looking-at doctest-prompt-re))) | |
| 357 ;; Delete the old prompt (if any). | |
| 358 (when line-had-prompt | |
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359 (goto-char (match-end 1)) |
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360 (delete-char 4)) |
| 0 | 361 ;; Delete the old indentation. |
| 362 (delete-backward-char (skip-chars-forward " \t")) | |
| 363 ;; If it's a continuation line, or a new PS1 prompt, | |
| 364 ;; then copy the margin. | |
| 365 (when (or new-indent (not line-had-prompt)) | |
| 366 (beginning-of-line) | |
| 367 (delete-backward-char (skip-chars-forward " \t")) | |
| 368 (insert-char ?\ new-margin)) | |
| 369 ;; Add the new prompt. | |
| 370 (insert-string (if new-indent "... " ">>> ")) | |
| 371 ;; Add the new indentation | |
| 372 (if new-indent (insert-char ?\ new-indent)) | |
| 373 (setq indent-end (point)))) | |
| 374 ;; If we're left of the indentation end, then move up to the | |
| 375 ;; indentation end. | |
| 376 (if (< (point) indent-end) (goto-char indent-end)))) | |
| 377 | |
| 378 (defun doctest-current-source-line-indentation (&optional dedent-only) | |
| 379 "Return the post-prompt indent to use for this line. This is an | |
| 380 integer for a continuation lines, and nil for non-continuation lines." | |
| 381 (save-excursion | |
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382 (let ((prev-line-indent 0) |
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383 (curr-line-indent 0) |
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384 (prev-line-opens-block nil) |
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385 (prev-line-closes-block nil) |
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386 (curr-line-outdented nil)) |
| 0 | 387 ;; Examine this doctest line. |
|
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388 (beginning-of-line) |
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389 (when (looking-at doctest-prompt-re) |
| 0 | 390 (setq curr-line-indent (- (match-end 3) (match-beginning 3))) |
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391 (goto-char (match-end 3))) |
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392 (setq curr-line-outdented (looking-at doctest-outdent-re)) |
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393 ;; Examine the previous line. |
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394 (when (= (forward-line -1) 0) ; move up a line |
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395 (when (looking-at doctest-prompt-re) ; is it a source line? |
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396 (let ((indent-beg (column-at-char (match-beginning 3))) |
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397 (indent-end (column-at-char (match-end 3)))) |
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398 (setq prev-line-indent (- indent-end indent-beg)) |
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399 (goto-char (match-end 3)) |
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400 (if (looking-at doctest-open-block-re) |
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401 (setq prev-line-opens-block t)) |
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402 (if (looking-at doctest-close-block-re) |
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403 (setq prev-line-closes-block t)) |
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404 (if (looking-at doctest-no-outdent-re) |
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405 (setq curr-line-outdented nil)) |
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406 ))) |
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407 (let ((indent (+ prev-line-indent |
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408 (if curr-line-outdented -4 0) |
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409 (if prev-line-opens-block 4 0) |
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410 (if prev-line-closes-block -4 0)))) |
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411 ;; If dedent-only is true, then make sure we don't indent. |
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412 (when dedent-only |
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413 (setq indent (min indent curr-line-indent))) |
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414 ;; If indent=0 and we're not outdented, then set indent to |
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415 ;; nil (to signify the start of a new source example). |
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416 (when (and (= indent 0) (not curr-line-outdented)) |
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417 (setq indent nil)) |
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418 ;; Return the indentation. |
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419 indent)))) |
| 0 | 420 |
| 421 (defun doctest-current-source-line-margin () | |
| 422 "Return the pre-prompt margin to use for this source line. This is | |
| 423 copied from the most recent source line, or set to | |
| 424 `doctest-default-margin' if there are no preceeding source lines." | |
| 425 (save-excursion | |
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426 (beginning-of-line) |
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427 (if (search-backward-regexp doctest-prompt-re nil t) |
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428 (let ((margin-beg (column-at-char (match-beginning 1))) |
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429 (margin-end (column-at-char (match-end 1)))) |
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430 (- margin-end margin-beg)) |
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431 doctest-default-margin))) |
| 0 | 432 |
| 433 (defun doctest-electric-backspace () | |
| 434 "Delete the preceeding character, level of indentation, or | |
| 435 prompt. | |
| 436 | |
| 437 If point is at the leftmost column, delete the preceding newline. | |
| 438 | |
| 439 Otherwise, if point is at the first non-whitespace character | |
| 440 following an indented source line's prompt, then reduce the | |
| 441 indentation to the next multiple of 4; and update the source line's | |
| 442 prompt, when necessary. | |
| 443 | |
| 444 Otherwise, if point is at the first non-whitespace character | |
| 445 following an unindented source line's prompt, then remove the | |
| 446 prompt (converting the line to an output line or text line). | |
| 447 | |
| 448 Otherwise, if point is at the first non-whitespace character of a | |
| 449 line, the delete the line's indentation. | |
| 450 | |
| 451 Otherwise, delete the preceeding character. | |
| 452 " | |
| 453 (interactive "*") | |
| 454 (cond | |
| 455 ;; Beginning of line: delete preceeding newline. | |
| 456 ((bolp) (backward-delete-char 1)) | |
| 457 | |
| 458 ;; First non-ws char following prompt: dedent or remove prompt. | |
| 459 ((and (looking-at "[^ \t\n]\\|$") (doctest-looking-back doctest-prompt-re)) | |
| 460 (let* ((prompt-beg (match-beginning 2)) | |
| 461 (indent-beg (match-beginning 3)) (indent-end (match-end 3)) | |
| 462 (old-indent (- indent-end indent-beg)) | |
| 463 (new-indent (* (/ (- old-indent 1) 4) 4))) | |
| 464 (cond | |
| 465 ;; Indented source line: dedent it. | |
| 466 ((> old-indent 0) | |
| 467 (goto-char indent-beg) | |
| 468 (delete-region indent-beg indent-end) | |
| 469 (insert-char ?\ new-indent) | |
| 470 ;; Change prompt to PS1, when appropriate. | |
| 471 (when (and (= new-indent 0) (not (looking-at doctest-outdent-re))) | |
| 472 (delete-backward-char 4) | |
| 473 (insert-string ">>> "))) | |
| 474 ;; Non-indented source line: remove prompt. | |
| 475 (t | |
| 476 (goto-char indent-end) | |
| 477 (delete-region prompt-beg indent-end))))) | |
| 478 | |
| 479 ;; First non-ws char of a line: delete all indentation. | |
| 480 ((and (looking-at "[^ \n\t]\\|$") (doctest-looking-back "^[ \t]+")) | |
| 481 (delete-region (match-beginning 0) (match-end 0))) | |
| 482 | |
| 483 ;; Otherwise: delete a character. | |
| 484 (t | |
| 485 (backward-delete-char 1)))) | |
| 486 | |
| 487 (defun doctest-newline-and-indent () | |
| 488 "Insert a newline, and indent the new line appropriately. | |
| 489 | |
| 490 If the current line is a source line containing a bare prompt, | |
| 491 then clear the current line, and insert a newline. | |
| 492 | |
| 493 Otherwise, if the current line is a source line, then insert a | |
| 494 newline, and add an appropriately indented prompt to the new | |
| 495 line. | |
| 496 | |
| 497 Otherwise, if the current line is an output line, then insert a | |
| 498 newline and indent the new line to match the example's margin. | |
| 499 | |
| 500 Otherwise, insert a newline. | |
| 501 | |
| 502 If `doctest-avoid-trailing-whitespace' is true, then clear any | |
| 503 whitespace to the left of the point before inserting a newline. | |
| 504 " | |
| 505 (interactive "*") | |
| 506 ;; If we're avoiding trailing spaces, then delete WS before point. | |
| 507 (if doctest-avoid-trailing-whitespace | |
| 508 (delete-char (- (skip-chars-backward " \t")))) | |
| 509 (cond | |
| 510 ;; If we're on an empty prompt, delete it. | |
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511 ((on-empty-doctest-source-line) |
| 0 | 512 (delete-region (match-beginning 0) (match-end 0)) |
| 513 (insert-char ?\n 1)) | |
| 514 ;; If we're on a doctest line, add a new prompt. | |
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515 ((on-doctest-source-line) |
| 0 | 516 (insert-char ?\n 1) |
| 517 (doctest-indent-source-line)) | |
| 518 ;; If we're in doctest output, indent to the margin. | |
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519 ((on-doctest-output-line) |
| 0 | 520 (insert-char ?\n 1) |
| 521 (insert-char ?\ (doctest-current-source-line-margin))) | |
| 522 ;; Otherwise, just add a newline. | |
| 523 (t (insert-char ?\n 1)))) | |
| 524 | |
| 525 (defun doctest-electric-colon () | |
| 526 "Insert a colon, and dedent the line when appropriate." | |
| 527 (interactive "*") | |
| 528 (insert-char ?: 1) | |
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529 (when (on-doctest-source-line) |
| 0 | 530 (doctest-indent-source-line t))) |
| 531 | |
| 532 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
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533 ;; Code Execution |
| 0 | 534 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 535 | |
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536 ;; Add support for options (eg diff!) |
| 0 | 537 (defun doctest-execute-buffer () |
| 538 "Run doctest on the current buffer, and display the results in the | |
| 539 *doctest-output* buffer." | |
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540 (interactive "*") |
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541 (setq doctest-results-buffer (get-buffer-create "*doctest-output*")) |
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542 (let* ((temp (concat (doctest-temp-name) ".py")) |
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543 (tempfile (expand-file-name temp doctest-temp-directory)) |
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544 (cur-buf (current-buffer)) |
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545 (in-buf (get-buffer-create "*doctest-input*")) |
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546 (beg (point-min)) (end (point-max)) |
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547 (script (concat "from doctest import *\n" |
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548 "doc = open('" tempfile "').read()\n" |
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549 "test = DocTestParser().get_doctest(" |
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550 "doc, {}, '" (buffer-name) "', '" |
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551 (buffer-file-name) "', 0)\n" |
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552 "r = DocTestRunner()\n" |
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553 "r.run(test)\n")) |
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554 (cmd (concat doctest-python-command " -c \"" script "\""))) |
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555 ;; Write buffer to a file. |
| 0 | 556 (save-excursion |
|
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557 (set-buffer in-buf) |
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558 (insert-buffer-substring cur-buf beg end) |
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559 (write-file tempfile)) |
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560 ;; Run doctest |
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561 (shell-command cmd doctest-results-buffer) |
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562 ;; Delete the temp file |
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563 (delete-file tempfile) |
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564 ;; Set mode on output buffer. |
| 0 | 565 (save-excursion |
|
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566 (set-buffer doctest-results-buffer) |
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567 (doctest-results-mode)) |
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568 ;; If any tests failed, display them. |
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569 (cond ((> (buffer-size doctest-results-buffer) 0) |
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570 (message "Test failed!") |
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571 (display-buffer doctest-results-buffer) |
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572 (doctest-postprocess-results)) |
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573 (t |
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574 (message "Test passed!") |
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575 (if (get-buffer-window doctest-results-buffer) |
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576 (delete-window (get-buffer-window doctest-results-buffer))))))) |
| 0 | 577 |
|
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578 (defun doctest-postprocess-results () |
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579 (doctest-next-failure 1) |
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580 (if hide-example-source |
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581 (hide-example-source))) |
| 0 | 582 |
| 583 (defun doctest-next-failure (count) | |
| 584 "Move to the top of the next failing example, and highlight the | |
| 585 example's failure description in *doctest-output*." | |
| 586 (interactive "p") | |
|
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587 (let (lineno) |
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588 (cond |
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589 ((not (buffer-live-p doctest-results-buffer)) |
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590 (message "Run doctest first! (C-c C-c)")) |
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591 (t |
| 0 | 592 (save-excursion |
|
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593 (let ((orig-window (selected-window)) |
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594 (results-window (display-buffer doctest-results-buffer))) |
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595 ;; Switch to the results window (so its point gets updated) |
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596 (if results-window (select-window results-window)) |
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597 ;; Pick up where we left off. |
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598 ;; (nb: doctest-selected-failure is buffer-local) |
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599 (goto-char (or doctest-selected-failure (point-min))) |
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600 ;; Skip past anything on *this* line. |
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601 (if (>= count 0) (end-of-line) (beginning-of-line)) |
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602 ;; Look for the next failure |
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603 (if (>= count 0) |
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604 (re-search-forward doctest-results-loc-re nil t count) |
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605 (re-search-backward doctest-results-loc-re nil t (- count))) |
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606 (cond |
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607 ;; We found a failure: |
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608 ((match-string 2) |
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609 (let ((old-selected-failure doctest-selected-failure)) |
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610 ;; Extract the line number for the doctest file. |
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611 (setq lineno (string-to-int (match-string 2))) |
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612 ;; Store our position for next time. |
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613 (beginning-of-line) |
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614 (setq doctest-selected-failure (point)) |
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615 ;; Update selection. |
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616 (doctest-fontify-line old-selected-failure) |
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617 (doctest-fontify-line doctest-selected-failure))) |
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618 ;; We didn't find a failure: |
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619 (t |
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620 (message "No failures found!"))) |
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621 ;; Return to the original window |
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622 (select-window orig-window))))) |
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623 |
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624 (when lineno |
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625 ;; Move point to the selected failure. |
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626 (goto-line lineno) |
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627 ; ;; Highlight it. [XX] Under construction. |
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628 ; (let ((beg (save-excursion (beginning-of-line) (point))) |
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629 ; (end (save-excursion (end-of-line) (point)))) |
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630 ; (add-text-properties (point-min) (point-max) '(doctest-selected nil)) |
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631 ; (add-text-properties beg end '(doctest-selected t)) |
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632 ; (doctest-fontify-line (point))) |
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633 ))) |
| 0 | 634 |
| 635 (defun doctest-prev-failure (count) | |
| 636 "Move to the top of the previous failing example, and highlight | |
| 637 the example's failure description in *doctest-output*." | |
| 638 (interactive "p") | |
| 639 (doctest-next-failure (- count))) | |
| 640 | |
| 641 (defun doctest-first-failure () | |
|
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642 (interactive "") |
| 0 | 643 (if (buffer-live-p doctest-results-buffer) |
| 644 (save-excursion | |
| 645 (set-buffer doctest-results-buffer) | |
| 646 (let ((old-selected-failure doctest-selected-failure)) | |
| 647 (setq doctest-selected-failure (point-min)) | |
| 648 (doctest-fontify-line old-selected-failure)))) | |
| 649 (doctest-next-failure 1)) | |
| 650 | |
| 651 (defun doctest-last-failure () | |
|
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652 (interactive "") |
| 0 | 653 (if (buffer-live-p doctest-results-buffer) |
| 654 (save-excursion | |
| 655 (set-buffer doctest-results-buffer) | |
| 656 (let ((old-selected-failure doctest-selected-failure)) | |
| 657 (setq doctest-selected-failure (point-max)) | |
| 658 (doctest-fontify-line old-selected-failure)))) | |
| 659 (doctest-next-failure -1)) | |
| 660 | |
|
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661 (defconst doctest-example-source-re |
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662 "^Failed example:\n\\(\n\\| [^\n]*\n\\)+") |
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663 (defun hide-example-source () |
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664 "Delete the source code listings from the results buffer (since it's |
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665 easy enough to see them in the original buffer)" |
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666 (save-excursion |
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667 (set-buffer doctest-results-buffer) |
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668 (toggle-read-only nil) |
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669 (beginning-of-buffer) |
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670 (while (re-search-forward doctest-example-source-re nil t) |
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671 (replace-match "" nil nil)) |
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672 (toggle-read-only t))) |
| 0 | 673 |
| 674 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
|
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675 ;; Doctest Results Mode (output of doctest-execute-buffer) |
| 0 | 676 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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677 ;; [XX] Todo: |
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678 ;; - Make it read-only? |
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679 ;; - Hitting enter goes to the corresponding error |
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680 ;; - Clicking goes to corresponding error (not as useful) |
| 0 | 681 |
| 682 | |
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683 (defconst doctest-results-divider-re |
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684 "^\\([*]\\{60,\\}\\)$") |
| 0 | 685 |
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686 (defconst doctest-results-loc-re |
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687 "^File \"\\([^\"]+\\)\", line \\([0-9]+\\), in \\([^\n]+\\)") |
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688 |
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689 (defconst doctest-results-header-re |
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690 "^\\([a-zA-Z0-9 ]+:\\)$") |
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691 |
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692 (defconst doctest-results-font-lock-keywords |
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693 `((,doctest-results-divider-re |
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694 (0 'doctest-results-divider-face)) |
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695 (,doctest-results-loc-re |
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696 (0 'doctest-results-loc-face)) |
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697 (,doctest-results-header-re |
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698 (0 'doctest-results-header-face)) |
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699 (doctest-results-selection-matcher |
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700 (0 'doctest-results-selection-face t)))) |
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701 |
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702 (defun doctest-results-selection-matcher (limit) |
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703 "Matches from `doctest-selected-failure' to the end of the |
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704 line. This is used to highlight the currently selected failure." |
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705 (when (and doctest-selected-failure |
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706 (<= (point) doctest-selected-failure) |
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707 (< doctest-selected-failure limit)) |
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708 (goto-char doctest-selected-failure) |
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709 (search-forward-regexp "[^\n]+" limit))) |
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710 |
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711 ;; Register the font-lock keywords (xemacs) |
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712 (put 'doctest-results-mode 'font-lock-defaults |
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713 '(doctest-results-font-lock-keywords)) |
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714 |
|
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715 ;; Register the font-lock keywords (gnu emacs) |
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716 (defvar font-lock-defaults-alist nil) ; in case we're in xemacs |
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717 (setq font-lock-defaults-alist |
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718 (append font-lock-defaults-alist |
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719 `((doctest-results-mode |
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720 doctest-results-font-lock-keywords |
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721 nil nil nil nil)))) |
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722 |
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723 ;; Define the mode |
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724 (define-derived-mode doctest-results-mode text-mode "Doctest Results" |
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725 "docstring" |
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726 ;; Enable font-lock mode. |
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727 (if (featurep 'font-lock) (font-lock-mode 1)) |
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728 ;; Keep track of which failure is selected |
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729 (set (make-local-variable 'doctest-selected-failure) nil) |
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730 ;; Make the buffer read-only. |
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731 (toggle-read-only t)) |
| 0 | 732 |
| 733 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
|
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734 ;; Helper functions |
| 0 | 735 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 736 | |
|
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737 (defun on-doctest-source-line () |
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738 "Return true if the current line is a source line." |
| 0 | 739 (save-excursion |
| 740 (beginning-of-line) | |
|
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741 (looking-at doctest-prompt-re))) |
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742 |
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743 (defun on-empty-doctest-source-line () |
| 0 | 744 "Return true if the current line contains a bare prompt." |
| 745 (save-excursion | |
| 746 (beginning-of-line) | |
|
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747 (looking-at (concat doctest-prompt-re "$")))) |
| 0 | 748 |
|
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749 (defun on-doctest-output-line () |
| 0 | 750 "Return true if the current line is an output line." |
| 751 (save-excursion | |
| 752 (beginning-of-line) | |
|
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753 (let ((prompt-or-blankline (concat doctest-prompt-re "\\|" "^[ \t]*\n"))) |
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754 ;; The line must not be blank or start with a prompt. |
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755 (when (not (looking-at prompt-or-blankline)) |
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756 ;; The line must follow a line starting with a prompt, with |
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757 ;; no intervening blank lines. |
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758 (search-backward-regexp prompt-or-blankline nil t) |
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759 (looking-at doctest-prompt-re))))) |
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760 |
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761 (defun find-doctest-output-line (&optional limit) |
| 0 | 762 "Move forward to the next doctest output line (staying within |
| 763 the given bounds). Return the character position of the doctest | |
| 764 output line if one was found, and false otherwise." | |
| 765 (let ((found-it nil) ; point where we found an output line | |
| 766 (limit (or limit (point-max)))) ; default value for limit | |
| 767 (save-excursion | |
| 768 ;; Keep moving forward, one line at a time, until we find a | |
| 769 ;; doctest output line. | |
| 770 (while (and (not found-it) (< (point) limit) (not (eobp))) | |
|
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771 (if (and (not (eolp)) (on-doctest-output-line)) |
| 0 | 772 (setq found-it (point)) |
| 773 (forward-line)))) | |
| 774 ;; If we found a doctest output line, then go to it. | |
| 775 (if found-it (goto-char found-it)))) | |
| 776 | |
| 777 (defun doctest-version () | |
| 778 "Echo the current version of `doctest-mode' in the minibuffer." | |
| 779 (interactive) | |
| 780 (message "Using `doctest-mode' version %s" doctest-version)) | |
| 781 | |
|
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782 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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783 ;; Utility functions |
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784 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 0 | 785 |
| 786 (defvar doctest-serial-number 0) ;used if broken-temp-names. | |
| 787 (defun doctest-temp-name () | |
| 788 (if (memq 'broken-temp-names features) | |
| 789 (let | |
| 790 ((sn doctest-serial-number) | |
| 791 (pid (and (fboundp 'emacs-pid) (emacs-pid)))) | |
| 792 (setq doctest-serial-number (1+ doctest-serial-number)) | |
| 793 (if pid | |
| 794 (format "doctest-%d-%d" sn pid) | |
| 795 (format "doctest-%d" sn))) | |
| 796 (make-temp-name "doctest-"))) | |
| 797 | |
|
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798 (defun column-at-char (pos) |
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799 "Return the column of the given character position" |
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800 (save-excursion (goto-char pos) (current-column))) |
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801 |
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802 (defun doctest-looking-back (regexp) |
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803 "Return True if the text before point matches the given regular |
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804 expression. Like looking-at except backwards and slower. (This |
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805 is available as `looking-back' in GNU emacs and |
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806 `looking-at-backwards' in XEmacs, but it's easy enough to define |
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807 from scratch such that it works under both.)" |
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808 (save-excursion |
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809 (let ((orig-pos (point))) |
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810 ;; Search backwards for the regexp. |
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811 (if (re-search-backward regexp nil t) |
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812 ;; Check if it ends at the original point. |
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813 (= orig-pos (match-end 0)))))) |
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814 |
| 0 | 815 (defun doctest-fontify-line (charpos) |
| 816 "Run font-lock-fontify-region on the line containing the given | |
| 817 position." | |
|
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818 (if charpos |
| 0 | 819 (save-excursion |
| 820 (goto-char charpos) | |
| 821 (let ((beg (progn (beginning-of-line) (point))) | |
| 822 (end (progn (end-of-line) (point)))) | |
| 823 (font-lock-fontify-region beg end))))) | |
|
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824 |
| 0 | 825 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
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826 ;; Syntax Table |
| 0 | 827 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 828 | |
|
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829 ;; We do *NOT* currently use this, because it applies too |
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830 ;; indiscrimanantly. In particular, we don't want "'" and '"' treated |
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831 ;; as quote marks on text lines. But there's no good way to prevent |
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832 ;; it. |
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833 (defvar doctest-syntax-alist nil |
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834 "Syntax alist used in `doctest-mode' buffers.") |
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835 (setq doctest-syntax-alist '((?\( . "()") (?\[ . "(]") (?\{ . "(}") |
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836 (?\) . ")(") (?\] . ")[") (?\} . "){") |
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837 (?\$ . "." ) (?\% . "." ) (?\& . "." ) |
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838 (?\* . "." ) (?\+ . "." ) (?\- . "." ) |
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839 (?\/ . "." ) (?\< . "." ) (?\= . "." ) |
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840 (?\> . "." ) (?\| . "." ) (?\_ . "w" ) |
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841 (?\' . "\"") (?\" . "\"") (?\` . "$" ) |
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842 (?\# . "<" ) (?\n . ">" ))) |
| 0 | 843 |
| 844 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
|
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845 ;; Key Bindings |
| 0 | 846 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 847 | |
| 848 (defconst doctest-mode-map | |
| 849 (let ((map (make-keymap))) | |
| 850 (define-key map [backspace] 'doctest-electric-backspace) | |
| 851 (define-key map [return] 'doctest-newline-and-indent) | |
| 852 (define-key map [tab] 'doctest-indent-source-line) | |
| 853 (define-key map ":" 'doctest-electric-colon) | |
| 854 (define-key map "\C-c\C-v" 'doctest-version) | |
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855 (define-key map "\C-c\C-c" 'doctest-execute-buffer) |
| 0 | 856 (define-key map "\C-c\C-n" 'doctest-next-failure) |
| 857 (define-key map "\C-c\C-p" 'doctest-prev-failure) | |
| 858 (define-key map "\C-c\C-a" 'doctest-first-failure) | |
| 859 (define-key map "\C-c\C-z" 'doctest-last-failure) | |
| 860 map) | |
| 861 "Keymap for doctest-mode.") | |
| 862 | |
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863 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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864 ;; Define the mode |
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865 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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866 |
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867 ;; Register the font-lock keywords (xemacs) |
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868 (put 'doctest-mode 'font-lock-defaults '(doctest-font-lock-keywords)) |
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869 |
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870 ;; Register the font-lock keywords (gnu emacs) |
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871 (defvar font-lock-defaults-alist nil) ; in case we're in xemacs |
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872 (setq font-lock-defaults-alist |
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873 (append font-lock-defaults-alist |
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874 `((doctest-mode doctest-font-lock-keywords nil nil nil nil)))) |
| 0 | 875 |
| 876 ;; Use doctest mode for files ending in .doctest | |
| 877 ;;;###autoload | |
| 878 (add-to-list 'auto-mode-alist '("\\.doctest$" . doctest-mode)) | |
| 879 | |
| 880 ;;;###autoload | |
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881 (define-derived-mode doctest-mode text-mode "Doctest" |
| 0 | 882 "A major mode for editing text files that contain Python |
| 883 doctest examples. Doctest is a testing framework for Python that | |
| 884 emulates an interactive session, and checks the result of each | |
| 885 command. For more information, see the Python library reference: | |
| 886 <http://docs.python.org/lib/module-doctest.html> | |
| 887 | |
| 888 `doctest-mode' defines three kinds of line, each of which is | |
| 889 treated differently: | |
| 890 | |
| 891 - 'Source lines' are lines consisting of a Python prompt | |
| 892 ('>>>' or '...'), followed by source code. Source lines are | |
| 893 colored (similarly to `python-mode') and auto-indented. | |
| 894 | |
| 895 - 'Output lines' are non-blank lines immediately following | |
| 896 source lines. They are colored using several doctest- | |
| 897 specific output faces. | |
| 898 | |
| 899 - 'Text lines' are any other lines. They are not processed in | |
| 900 any special way. | |
| 901 | |
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902 \\{doctest-mode-map} |
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903 " |
| 0 | 904 ;; Enable auto-fill mode. |
| 905 (auto-fill-mode 1) | |
| 906 | |
| 907 ;; Enable font-lock mode. | |
| 908 (if (featurep 'font-lock) (font-lock-mode 1)) | |
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909 |
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910 ;; Register our indentation function. |
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911 (set (make-local-variable 'indent-line-function) |
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912 'doctest-indent-source-line) |
| 0 | 913 |
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914 ;; Keep track of our results buffer. |
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915 (set (make-local-variable 'doctest-results-buffer) nil) |
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916 ) |
| 0 | 917 |
| 918 (provide 'doctest-mode) | |
| 919 ;;; doctest-mode.el ends here |