├── .gitignore ├── efar.png ├── .github ├── ISSUE_TEMPLATE │ ├── feature_request.md │ └── bug_report.md └── workflows │ └── melpazoid.yml ├── NEWS.md ├── adds └── get-back-keys.el ├── README.md └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | 2 | *.elc 3 | *.el# 4 | .#efar.el 5 | -------------------------------------------------------------------------------- /efar.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/suntsov/efar/HEAD/efar.png -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/feature_request.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Feature request 3 | about: Suggest an idea for this project 4 | title: '' 5 | labels: '' 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Is your feature request related to a problem? Please describe.** 11 | A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] 12 | 13 | **Describe the solution you'd like** 14 | A clear and concise description of what you want to happen. 15 | 16 | **Describe alternatives you've considered** 17 | A clear and concise description of any alternative solutions or features you've considered. 18 | 19 | **Additional context** 20 | Add any other context or screenshots about the feature request here. 21 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/bug_report.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Bug report 3 | about: Create a report to help us improve 4 | title: '' 5 | labels: '' 6 | assignees: '' 7 | 8 | --- 9 | 10 | **Describe the bug** 11 | A clear and concise description of what the bug is. 12 | 13 | **To Reproduce** 14 | Steps to reproduce the behavior: 15 | 1. Go to '...' 16 | 2. Click on '....' 17 | 3. Scroll down to '....' 18 | 4. See error 19 | 20 | **Expected behavior** 21 | A clear and concise description of what you expected to happen. 22 | 23 | **Screenshots** 24 | If applicable, add screenshots to help explain your problem. 25 | 26 | **Desktop (please complete the following information):** 27 | - OS: [e.g. Windows] 28 | - Emacs Version [e.g. 26.3] 29 | - eFar version [e.g. 1.0] 30 | 31 | **Additional context** 32 | Add any other context about the problem here. 33 | -------------------------------------------------------------------------------- /.github/workflows/melpazoid.yml: -------------------------------------------------------------------------------- 1 | # melpazoid build checks. 2 | 3 | # If your package is on GitHub, enable melpazoid's checks by copying this file 4 | # to .github/workflows/melpazoid.yml and modifying RECIPE and EXIST_OK below. 5 | 6 | name: melpazoid 7 | on: [push, pull_request] 8 | 9 | jobs: 10 | build: 11 | runs-on: ubuntu-latest 12 | steps: 13 | - uses: actions/checkout@v2 14 | - name: Set up Python 3.6 15 | uses: actions/setup-python@v1 16 | with: { python-version: 3.6 } 17 | - name: Install 18 | run: | 19 | python -m pip install --upgrade pip 20 | sudo apt-get install emacs && emacs --version 21 | git clone https://github.com/riscy/melpazoid.git ~/melpazoid 22 | pip install ~/melpazoid 23 | - name: Run 24 | env: 25 | # RECIPE is your recipe as written for MELPA: 26 | RECIPE: (efar :fetcher github :repo "suntsov/efar") 27 | # set this to false (or remove it) if the package isn't on MELPA: 28 | EXIST_OK: false 29 | run: echo $GITHUB_REF && make -C ~/melpazoid 30 | -------------------------------------------------------------------------------- /NEWS.md: -------------------------------------------------------------------------------- 1 | # eFar NEWS 2 | 3 | ## Change log 4 | 5 | ### In development 6 | * Extracting files from archives 7 | 8 | ### Version 1.33 9 | * **Bugfix** Do not restart subprocesses each time after background task execution 10 | 11 | ### Version 1.32 12 | * **New** Working with archives: 13 | Displaying content of archive files (.zip, .7z, .tar, .tar.gz, .tar.bz2) 14 | Reading content of files inside archives with **F3** 15 | 16 | ### Version 1.31 17 | * **Bugfix** Error when search finished caused by trying to kill already killed subprocess 18 | 19 | ### Version 1.30 20 | * **New** Enable file operations (copy, move, delete) in file search results 21 | 22 | ### Version 1.29 23 | * **New** Right-click file selection (https://github.com/suntsov/efar/issues/27) 24 | * **Bugfix** Switch to other panel by TAB in single panel mode (https://github.com/suntsov/efar/issues/26) 25 | * **Bugfix** Make eFar buffer stop keeping undo information 26 | 27 | ### Version 1.28 28 | * **Bugfix**: fix errors on removal, renaming/copying when helm is activated 29 | * **Performance**: don't refresh whole eFar when moving cursor 30 | 31 | ### Version 1.27 32 | * **Bugfix**: fix color theme for directory comparison mode 33 | * **Bugfux**: cursor disappears when scrolling with PgDN to the bottom of long file list 34 | 35 | ### Version 1.26 36 | * **New**: The way of key binding castomization changed. See [Readme](README.md) for details. 37 | Default eFar key bindings used in previous versions have been changed according to the [Emacs Key Binding Conventions](https://www.gnu.org/software/emacs/manual/html_node/elisp/Key-Binding-Conventions.html). 38 | Actual key bindings you can check by **C-e ? (M-x efar-do-show-help)** 39 | In case if you'd like to get back to previous configuration you can load [get-back-keys.el](adds/get-back-keys.el) in your Emacs init file. 40 | 41 | ### Version 1.25 42 | * **New**: Color themes 43 | Press **\** to switch color theme. For now four themes available: blue, black, white and sand. 44 | * **Bugfix**: disable batch replace and rename functions in modes other than files and file search modes 45 | 46 | ### Version 1.24 47 | * **New**: Search history 48 | From now on all search requests and results are stored in search history. 49 | Search history by default opened with **\**. 50 | When eFar restarts search history is cleaned up. 51 | * **New**: Blink red in status bar on errors/warning. 52 | * **Bugfix**: files skipped during file search/directory comparison are not shown in the additional information results. 53 | * **Bugfix**: read files in normal mode (not literally) when searching text. 54 | 55 | ### Version 1.23 (Melpa stable) 56 | * **Bugfix**: [issue #17](https://github.com/suntsov/efar/issues/17). 57 | 58 | ### Version 1.22 59 | * **New**: Directory comparator implemented 60 | To compare content of two directories open these directories in left and right panels and press **\**. See Readme for details. 61 | * Fixes for some minor bugs. 62 | * Sub-processing code refactoring and optimization. 63 | 64 | ### Changes in versions prior version 1.22 have not been documented... 65 | -------------------------------------------------------------------------------- /adds/get-back-keys.el: -------------------------------------------------------------------------------- 1 | (eval-after-load 'efar 2 | '(progn 3 | (define-key efar-mode-map (kbd "") 'efar-do-move-up) 4 | (define-key efar-mode-map (kbd "") 'efar-do-move-down) 5 | (define-key efar-mode-map (kbd "") 'efar-do-move-left) 6 | (define-key efar-mode-map (kbd "") 'efar-do-move-left) 7 | (define-key efar-mode-map (kbd "") 'efar-do-move-right) 8 | (define-key efar-mode-map (kbd "") 'efar-do-move-right) 9 | (define-key efar-mode-map (kbd "") 'efar-do-move-home) 10 | (define-key efar-mode-map (kbd "") 'efar-do-move-end) 11 | (define-key efar-mode-map (kbd "") 'efar-do-move-home) 12 | (define-key efar-mode-map (kbd "") 'efar-do-move-end) 13 | (define-key efar-mode-map (kbd "RET") 'efar-do-enter-directory) 14 | (define-key efar-mode-map (kbd "C-") 'efar-do-enter-parent) 15 | (define-key efar-mode-map (kbd "C-c c d") 'efar-do-change-directory) 16 | (define-key efar-mode-map (kbd "TAB") 'efar-do-switch-to-other-panel) 17 | (define-key efar-mode-map (kbd "C-c TAB") 'efar-do-open-dir-other-panel) 18 | (define-key efar-mode-map (kbd "") 'efar-do-edit-file) 19 | (define-key efar-mode-map (kbd "") 'efar-do-open-file-in-external-app) 20 | (define-key efar-mode-map (kbd "") 'efar-do-read-file) 21 | (define-key efar-mode-map (kbd "") 'efar-do-mark-file) 22 | (define-key efar-mode-map (kbd "") 'efar-do-unmark-all) 23 | (define-key efar-mode-map (kbd "") 'efar-do-mark-all) 24 | (define-key efar-mode-map (kbd "") 'efar-do-copy) 25 | (define-key efar-mode-map (kbd "") 'efar-do-rename) 26 | (define-key efar-mode-map (kbd "") 'efar-do-make-dir) 27 | (define-key efar-mode-map (kbd "") 'efar-do-delete) 28 | (define-key efar-mode-map (kbd "") 'efar-do-scroll-other-window-up) 29 | (define-key efar-mode-map (kbd "") 'efar-do-scroll-other-window-down) 30 | (define-key efar-mode-map (kbd "S-C-") 'efar-do-move-splitter-left) 31 | (define-key efar-mode-map (kbd "S-C-") 'efar-do-move-splitter-right) 32 | (define-key efar-mode-map (kbd "S-C-") 'efar-do-move-splitter-center) 33 | (define-key efar-mode-map (kbd "C-c f m") 'efar-do-set-file-modes) 34 | (define-key efar-mode-map (kbd "C-c f d") 'efar-do-show-disk-selector) 35 | (define-key efar-mode-map (kbd "C-c f s") 'efar-do-change-sorting) 36 | (define-key efar-mode-map (kbd "C-c f f") 'efar-do-filter-files) 37 | (define-key efar-mode-map (kbd "C-c v M") 'efar-do-change-mode) 38 | (define-key efar-mode-map (kbd "C-c v +") 'efar-do-increase-column-number) 39 | (define-key efar-mode-map (kbd "C-c v -") 'efar-do-decrease-column-number) 40 | (define-key efar-mode-map (kbd "C-c v m") 'efar-do-change-file-display-mode) 41 | (define-key efar-mode-map (kbd "C-c c p") 'efar-do-copy-file-path) 42 | (define-key efar-mode-map (kbd "C-c c e") 'efar-do-ediff-files) 43 | (define-key efar-mode-map (kbd "C-c c s") 'efar-do-file-stat) 44 | (define-key efar-mode-map (kbd "C-c c o") 'efar-do-open-shell) 45 | (define-key efar-mode-map (kbd "M-RET") 'efar-do-send-to-shell) 46 | (define-key efar-mode-map (kbd "C-c c b") 'efar-do-show-bookmarks) 47 | (define-key efar-mode-map (kbd "C-c c B") 'efar-do-add-bookmark) 48 | (define-key efar-mode-map (kbd "C-c c h") 'efar-do-show-directory-history) 49 | (define-key efar-mode-map (kbd "") 'efar-do-directory-history-previous) 50 | (define-key efar-mode-map (kbd "") 'efar-do-directory-history-next) 51 | (define-key efar-mode-map (kbd "C-c c f") 'efar-do-show-file-history) 52 | (define-key efar-mode-map (kbd "C-c c n") 'efar-do-run-batch-rename) 53 | (define-key efar-mode-map (kbd "C-c c r") 'efar-do-run-batch-replace) 54 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-start-search) 55 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-show-search-results) 56 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-show-search-history) 57 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-show-search-results-in-buffer) 58 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-start-directory-comparison) 59 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-show-directory-comparison-results) 60 | (define-key efar-mode-map (kbd "C-c ") 'efar-do-show-directory-comparison-results-in-buffer) 61 | (define-key efar-mode-map (kbd "C-c a") 'efar-do-directory-comparison-toggle-changed-only) 62 | (define-key efar-mode-map (kbd "C-c s") 'efar-do-directory-comparison-toggle-size) 63 | (define-key efar-mode-map (kbd "C-c h") 'efar-do-directory-comparison-toggle-checksum) 64 | (define-key efar-mode-map (kbd "C-c o") 'efar-do-directory-comparison-toggle-owner) 65 | (define-key efar-mode-map (kbd "C-c g") 'efar-do-directory-comparison-toggle-group) 66 | (define-key efar-mode-map (kbd "C-c m") 'efar-do-directory-comparison-toggle-modes) 67 | (define-key efar-mode-map (kbd "C-c c m") 'efar-do-show-mode-selector) 68 | (define-key efar-mode-map (kbd "C-c ?") 'efar-do-show-help) 69 | (define-key efar-mode-map (kbd "C-t") 'efar-do-change-theme) 70 | (define-key efar-mode-map (kbd "C-g") 'efar-do-abort) 71 | (define-key efar-mode-map (kbd " ") 'efar-do-reinit) 72 | (define-key efar-mode-map (kbd "C-n") 'efar-do-suggest-hint))) 73 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![MELPA](https://melpa.org/packages/efar-badge.svg)](https://melpa.org/#/efar) [![MELPA Stable](https://stable.melpa.org/packages/efar-badge.svg)](https://stable.melpa.org/#/efar) 2 | 3 | # eFar 4 | 5 | This package provides FAR-like file manager for Emacs. 6 | 7 | ![](efar.png) 8 | 9 | ## Please note! 10 | In version 1.26 some default eFar key bindings have been changed according to the [Emacs Key Binding Conventions](https://www.gnu.org/software/emacs/manual/html_node/elisp/Key-Binding-Conventions.html). 11 | 12 | Actual key bindings you can check by **C-e ? (M-x efar-do-show-help)** 13 | 14 | In case if you'd like to get back to previous configuration you can load [get-back-keys.el](adds/get-back-keys.el) in your Emacs init file. 15 | 16 | The way of key binding customization has been also changed. Please read **How to customize eFar key bindings?** below. 17 | 18 | ## Requirements 19 | * Emacs 26.1 or newer. 20 | 21 | ## Installation 22 | * Manually: download efar.el and add the location to load path. 23 | * From melpa: ensure you have melpa in your package-archives (see Melpa Installation). Then, **M-x package-install [RET] efar** 24 | 25 | ## Usage 26 | To start eFar just type **M-x efar**. 27 | 28 | When Efar is called with universal argument, default-directory of actual buffer is automatically opened in left panel - **C-u M-x efar**. 29 | 30 | ## Changelog 31 | See [NEWS.md](NEWS.md). 32 | 33 | ## Features 34 | 35 | ### Navigation 36 | * move cursor - **\, \, \, \** 37 | * go to first/last file in current directory - **\/\ or \/\** 38 | * enter directory under cursor - **RET** 39 | * switch to other panel - **TAB** 40 | * open current directory in other panel - **C-c TAB** 41 | * fast navigation to the file with specific name in current directory - **just start typing any part of file name** 42 | * you also can include \'*\' into the search string, then search string is used as a wildcard 43 | * **C-s/C-r** to go to next/previous occurrence, **C-g** to quit fast search mode 44 | * go to the given directory - **C-e c d** 45 | * go to the parent directory - **\** 46 | 47 | ### Appearance 48 | * change mode double-panel <-> single-panel - **C-e v M** 49 | * change number of columns in current panel - **C-e v + or C-e v -** 50 | * change file display mode (short, long, detailed, full) - **C-e v m** 51 | * Press **\** to switch color theme. For now four themes available: blue, black, white and sand. 52 | 53 | ### Selecting disks (Windows) or mount points (Unix) 54 | * display list of available disks (Windows) or mount points (Unix) - **C-e f d** 55 | 56 | ### Edit and auto preview 57 | * open file under cursor in other buffer and switch to that buffer - **\** 58 | * open file under cursor in other buffer and keep eFar buffer actual - **\** 59 | * open file under cursor in external application - **\** 60 | * directories and files of predefined types are automatically opened in other buffer when navigating through the file list - this function can configured via customization 61 | 62 | ### File operations 63 | * mark file under cursor - **\** 64 | * unmark all marked files - **\** 65 | * copy marked files (or file under cursor if no files marked) - **C-e \\** 66 | * move marked files (or file under cursor if no files marked) - **C-e \\** 67 | * delete marked files (or file under cursor if no files marked) - **C-e \\** 68 | * create new directory - **C-e \\** 69 | * create new file - **C-x C-f** 70 | * show statistic (size, number of file and directories) for the directory under cursor - **C-e c s** 71 | * run ediff for selected files - **C-e c e** 72 | * copy to the clipboard path to the file under cursor - **C-e c p** 73 | * change file modes (permissions) for selected files - **C-e f m** 74 | 75 | ### Batch file renaming 76 | eFar has a very simple batch file renamer 77 | * Press **C-e c n** to run it. 78 | * The files to rename are the marked ones (if any) or the whole (might be filtered) file list in the current directory. 79 | * Renamer asks for a format string to use for renaming, default to #basename-#number#ext 80 | * Possible keywords in the format string: 81 | - #name - replaced by the whole file name including extension 82 | - #basename - replaced by the file name without extension 83 | - #ext - replaced by the file extension (if any) with leading '.' 84 | - #number - replaced by the running number 85 | * Keyword can be written in different form: 86 | - \, \ or \ 87 | * Depending on the form corresponding part will be translated to lower case, upper case or will be capitalized. 88 | 89 | Preliminary results of renaming are shown in a separate buffer. 90 | User can run actual renaming or cancel it. 91 | 92 | ### Batch regexp replace in files 93 | * press **C-e c r** to start batch regexp replace in selected files 94 | * The files to replace in are the marked ones (if any) or the whole (might be filtered) file list in the current directory 95 | 96 | ### Changing sort order, filtering 97 | * change sort order and direction - **C-e f s** 98 | * set/remove filtering by file mask - **C-e f f** 99 | 100 | ### File search 101 | * start search in current directory - **C-e \** 102 | * display last search results - **C-e \** 103 | * go to the file from search result list - **RET** 104 | * show buffer with detailed search results - **C-e \** 105 | * open list with last search queries - **C-e \** 106 | * it's possible to search for text in files using simple string or Emacs regular expressions 107 | * when opening file from the file search results an incremental search is automatically activated for the searched text 108 | * no external tools used for search functionality, it's completely implemented using pure elisp 109 | * multiprocessing used when searching for text inside files 110 | 111 | ### Directory comparison 112 | * start comparing directories selected in right and left panels - **C-e \** 113 | * display last comparison results - **\** 114 | * display comparison results with details in a separate buffer - **C-e \** 115 | * show/hide unchanged files - **C-e \ a** 116 | * togle displaying difference in size - **C-e \ s** 117 | * togle displaying difference in modes - **C-e \ m** 118 | * togle displaying difference in owner - **C-e \ o** 119 | * togle displaying difference in group - **C-e \ g** 120 | * togle displaying difference in checksum - **C-e \ h** 121 | * new files are marked in green, deleted ones in red and changed in blue 122 | * multiprocessing used when coparing directories 123 | 124 | ### Last visited directories 125 | * display list of last visited directories - **C-e c h** 126 | * go to the directory from the list of last visited directories - **RET** 127 | * when panel is in file mode you can loop over last visited directories by **\** and **\** 128 | 129 | ### Panel mode selector 130 | * Selector of available panel modes can be displayed by **C-e c m** 131 | * Current panel is switched to selected mode 132 | 133 | ### Bookmarks 134 | * add file/directory under cursor to bookmark list - **C-e c B** 135 | * display bookmarks - **C-e c b** 136 | * remove item from the list of bookmarks - **C-e \\** 137 | * go to to the item from bookmark list - **RET** 138 | 139 | ### Save/restore state 140 | * by default state is saved automatically on exit or when eFar buffer is killed and restored when Efar is opened again 141 | 142 | ### Auto refresh when files change 143 | * eFar buffer is automatically refreshed when content of displayed directories changes in outside world 144 | 145 | ### Mouse interaction 146 | Many operations within eFar buffer can be performed using mouse 147 | * Drag&Drop file items within eFar buffer to move them from one place to another 148 | * use **C-** modifier when dragging to copy files instead of moving 149 | * double click to enter directory 150 | * Right-click (mouse-3) or use **C-** and **S-** modifiers with left-click to mark files 151 | * click on the directory name at top to show disk/mout mount selector 152 | * use controls in the panel header to change sort order, file display mode, column number, etc. 153 | * drag or double click the splitter between panels to change the widths of panels 154 | 155 | ### Working with archive files 156 | Actually eFar works with folowing archive type: .zip, .7z, .tar, .tar.gz, .tar.bz2. 157 | Press **enter** on archive file of supported type to "get into" the archive. 158 | Press **F3** on a file inside archive to see the content of the file. 159 | Creating and extracting archive files is not yet implemented. 160 | Functions to work with archive files require corresponding command line utilities to be available in the Path. 161 | 162 | ### Shell 163 | * when double-click or press enter on a executable file an eFar Emacs Shell is opened and the file is then executed in the shell 164 | * a single Shell buffer is used when running files from eFar 165 | * use **C-e c o** to switch to the shell buffer 166 | 167 | ### Help 168 | * display list of all available key bindigs - **C-e ?** 169 | 170 | ### Customization 171 | * numerous customizable parameters available via **M-x efar-customize** 172 | 173 | ### How to customize eFar key bindings? 174 | Suppose you want to replace default binding **\** by **C-p** for command **efar-do-move-up**. 175 | Then add following code to your init file: 176 | ``` 177 | (eval-after-load 'efar 178 | '(progn 179 | (define-key efar-mode-map (kbd "") nil) 180 | (define-key efar-mode-map (kbd "C-p") 'efar-do-move-up))) 181 | ``` 182 | If you like to just add an additional binding and keep default one then the first 'define-key' is not needed. 183 | 184 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------