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Diffstat (limited to '.emacs.local/simpc-mode')
| -rw-r--r-- | .emacs.local/simpc-mode/LICENSE | 20 | ||||
| -rw-r--r-- | .emacs.local/simpc-mode/README.md | 61 | ||||
| -rw-r--r-- | .emacs.local/simpc-mode/simpc-mode.el | 127 |
3 files changed, 0 insertions, 208 deletions
diff --git a/.emacs.local/simpc-mode/LICENSE b/.emacs.local/simpc-mode/LICENSE deleted file mode 100644 index b196837..0000000 --- a/.emacs.local/simpc-mode/LICENSE +++ /dev/null @@ -1,20 +0,0 @@ -Copyright 2020 Alexey Kutepov <reximkut@gmail.com> - -Permission is hereby granted, free of charge, to any person obtaining -a copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be -included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE -LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file diff --git a/.emacs.local/simpc-mode/README.md b/.emacs.local/simpc-mode/README.md deleted file mode 100644 index 7c879fa..0000000 --- a/.emacs.local/simpc-mode/README.md +++ /dev/null @@ -1,61 +0,0 @@ -# Simple C mode for Emacs - -Because whatever comes with Emacs is too slow. - -This mode does not try to be as featureful as `c-mode`, `c++-mode`, -`cc-mode`, etc. Instead we are trying to implement a bare minimum -syntax highlighting and indentation to maintain high performance on -big files with long lines. - -The goal is to be able to comfortably browse and modify the following files: -- [imgui](https://raw.githubusercontent.com/ocornut/imgui/fb7f6cab8c322731da336e553915e944bf386e62/imgui.h) -- [amalgamated sqlite3.c](https://raw.githubusercontent.com/IreneKnapp/direct-sqlite/a74cc50c735053c7c49c487a66e7756b524db883/cbits/sqlite3.c) -- [miniaudio.h](https://raw.githubusercontent.com/mackron/miniaudio/refs/heads/master/miniaudio.h) -- ... - -Right now the only way to work with these files in Emacs is to use -`text-mode`. Which is actually a good evidence that Emacs itself can -handle such files! It's `c-mode` (and others) that cannot. - -## Installing locally - -Put [simpc-mode.el](./simpc-mode.el) to some folder `/path/to/simpc/`. Add this to your `.emacs`: - -```el -;; Adding `/path/to/simpc` to load-path so `require` can find it -(add-to-list 'load-path "/path/to/simpc/") -;; Importing simpc-mode -(require 'simpc-mode) -;; Automatically enabling simpc-mode on files with extensions like .h, .c, .cpp, .hpp -(add-to-list 'auto-mode-alist '("\\.[hc]\\(pp\\)?\\'" . simpc-mode)) -``` - -## Indentation - -Right now the mode supports only very simple indentations based on the -analysing the previous non-empty line and its surrounding curly -braces. Anything more complicated is outside of the scope of the -project. - -It is recommended to use an external formatter such as -[indent](https://www.gnu.org/software/indent/), -[astyle](http://astyle.sourceforge.net/), -[clang-format](https://clang.llvm.org/docs/ClangFormat.html), etc. - -Here is how I use [astyle](http://astyle.sourceforge.net/): - -```emacs-lisp -(defun astyle-buffer () - (interactive) - (let ((saved-line-number (line-number-at-pos))) - (shell-command-on-region - (point-min) - (point-max) - "astyle --style=kr" - nil - t) - (goto-line saved-line-number))) -``` - -Then I bind `astyle-buffer` to some key combination and invoke it -periodically to reformat the whole current buffer. diff --git a/.emacs.local/simpc-mode/simpc-mode.el b/.emacs.local/simpc-mode/simpc-mode.el deleted file mode 100644 index 928bb93..0000000 --- a/.emacs.local/simpc-mode/simpc-mode.el +++ /dev/null @@ -1,127 +0,0 @@ -(require 'subr-x) - -(defvar simpc-mode-syntax-table - (let ((table (make-syntax-table))) - ;; C/C++ style comments - (modify-syntax-entry ?/ ". 124b" table) - (modify-syntax-entry ?* ". 23" table) - (modify-syntax-entry ?\n "> b" table) - ;; Preprocessor stuff? - (modify-syntax-entry ?# "." table) - ;; Chars are the same as strings - (modify-syntax-entry ?' "\"" table) - ;; Treat <> as punctuation (needed to highlight C++ keywords - ;; properly in template syntax) - (modify-syntax-entry ?< "." table) - (modify-syntax-entry ?> "." table) - - (modify-syntax-entry ?& "." table) - (modify-syntax-entry ?% "." table) - table)) - -(defun simpc-types () - '("char" "int" "long" "short" "void" "bool" "float" "double" "signed" "unsigned" - "char16_t" "char32_t" "char8_t" - "int8_t" "uint8_t" "int16_t" "uint16_t" "int32_t" "uint32_t" "int64_t" "uint64_t" - "uintptr_t" - "size_t" "ptrdiff_t" - "va_list")) - -(defun simpc-keywords () - '("auto" "break" "case" "const" "continue" "default" "do" - "else" "enum" "extern" "for" "goto" "if" "register" - "return" "sizeof" "static" "struct" "switch" "typedef" - "union" "volatile" "while" "alignas" "alignof" "and" - "and_eq" "asm" "atomic_cancel" "atomic_commit" "atomic_noexcept" "bitand" - "bitor" "catch" "class" "co_await" - "co_return" "co_yield" "compl" "concept" "const_cast" "consteval" "constexpr" - "constinit" "decltype" "delete" "dynamic_cast" "explicit" "export" "false" - "friend" "inline" "mutable" "namespace" "new" "noexcept" "not" "not_eq" - "nullptr" "operator" "or" "or_eq" "private" "protected" "public" "reflexpr" - "reinterpret_cast" "requires" "static_assert" "static_cast" "synchronized" - "template" "this" "thread_local" "throw" "true" "try" "typeid" "typename" - "using" "virtual" "wchar_t" "xor" "xor_eq")) - -(defun simpc-font-lock-keywords () - (list - `("# *\\(warn\\|error\\)" . font-lock-warning-face) - `("# *[#a-zA-Z0-9_]+" . font-lock-preprocessor-face) - `("# *include\\(?:_next\\)?\\s-+\\(\\(<\\|\"\\).*\\(>\\|\"\\)\\)" . (1 font-lock-string-face)) - `("\\(?:enum\\|struct\\)\\s-+\\([a-zA-Z0-9_]+\\)" . (1 font-lock-type-face)) - `(,(regexp-opt (simpc-keywords) 'symbols) . font-lock-keyword-face) - `(,(regexp-opt (simpc-types) 'symbols) . font-lock-type-face))) - -(defun simpc--previous-non-empty-line () - "Returns either NIL when there is no such line or a pair (line . indentation)" - (save-excursion - ;; If you are on the first line, but not at the beginning of buffer (BOB) the `(bobp)` - ;; function does not return `t`. So we have to move to the beginning of the line first. - ;; TODO: feel free to suggest a better approach for checking BOB here. - (move-beginning-of-line nil) - (if (bobp) - ;; If you are standing at the BOB, you by definition don't have a previous non-empty line. - nil - ;; Moving one line backwards because the current line is by definition is not - ;; the previous non-empty line. - (forward-line -1) - ;; Keep moving backwards until we hit BOB or a non-empty line. - (while (and (not (bobp)) - (string-empty-p - (string-trim-right - (thing-at-point 'line t)))) - (forward-line -1)) - - (if (string-empty-p - (string-trim-right - (thing-at-point 'line t))) - ;; If after moving backwards for this long we still look at an empty - ;; line we by definition didn't find the previous non-empty line. - nil - ;; We found the previous non-empty line! - (cons (thing-at-point 'line t) - (current-indentation)))))) - -(defun simpc--desired-indentation () - (let ((prev (simpc--previous-non-empty-line))) - (if (not prev) - (current-indentation) - (let ((indent-len 4) - (cur-line (string-trim-right (thing-at-point 'line t))) - (prev-line (string-trim-right (car prev))) - (prev-indent (cdr prev))) - (cond - ((string-match-p "^\\s-*switch\\s-*(.+)" prev-line) - prev-indent) - ((and (string-suffix-p "{" prev-line) - (string-prefix-p "}" (string-trim-left cur-line))) - prev-indent) - ((string-suffix-p "{" prev-line) - (+ prev-indent indent-len)) - ((string-prefix-p "}" (string-trim-left cur-line)) - (max (- prev-indent indent-len) 0)) - ((string-suffix-p ":" prev-line) - (if (string-suffix-p ":" cur-line) - prev-indent - (+ prev-indent indent-len))) - ((string-suffix-p ":" cur-line) - (max (- prev-indent indent-len) 0)) - (t prev-indent)))))) - -;;; TODO: customizable indentation (amount of spaces, tabs, etc) -(defun simpc-indent-line () - (interactive) - (when (not (bobp)) - (let* ((desired-indentation - (simpc--desired-indentation)) - (n (max (- (current-column) (current-indentation)) 0))) - (indent-line-to desired-indentation) - (forward-char n)))) - -(define-derived-mode simpc-mode prog-mode "Simple C" - "Simple major mode for editing C files." - :syntax-table simpc-mode-syntax-table - (setq-local font-lock-defaults '(simpc-font-lock-keywords)) - (setq-local indent-line-function 'simpc-indent-line) - (setq-local comment-start "// ")) - -(provide 'simpc-mode) |