267 lines
8.6 KiB
EmacsLisp
267 lines
8.6 KiB
EmacsLisp
;; C/C++
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;; Should we split this in mode-c and mode-c++?
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(defcustom cc-ldlibs "-lm -pthread"
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"Custom linker flags for C/C++ linkage."
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:safe 'stringp)
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(make-variable-buffer-local 'cc-ldlibs)
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(defcustom cc-ldflags ""
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"Custom linker libs for C/C++ linkage."
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:safe 'stringp)
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(make-variable-buffer-local 'cc-ldflags)
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(defun cc-set-compiler (&optional nomakefile)
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"Set compile command to be nearest Makefile or a generic command.
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The Makefile is looked up in parent folders. If no Makefile is
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found (or if NOMAKEFILE is non-nil or if function was called with
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universal argument), then a configurable command line is
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provided.\n Requires `get-closest-pathname'."
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(interactive "P")
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(require 'functions)
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(hack-local-variables)
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(let ((makefile (get-closest-pathname)))
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(if (and makefile
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(not nomakefile))
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(set (make-local-variable 'compile-command) (concat "make -k -C " (shell-quote-argument (file-name-directory makefile))))
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(set (make-local-variable 'compile-command)
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(let
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((c++-p (eq major-mode 'c++-mode))
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(file (file-name-nondirectory buffer-file-name)))
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(format "%s %s -o '%s' %s %s %s"
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(if c++-p
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(or (getenv "CXX") "g++")
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(or (getenv "CC") "gcc"))
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(shell-quote-argument file)
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(shell-quote-argument (file-name-sans-extension file))
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(if c++-p
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(or (getenv "CPPFLAGS") "-Wall -Wextra -Wshadow -DDEBUG=9 -g3 -O0")
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(or (getenv "CFLAGS") "-ansi -pedantic -std=c99 -Wall -Wextra -Wshadow -DDEBUG=9 -g3 -O0"))
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(or (getenv "LDFLAGS") cc-ldflags)
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(or (getenv "LDLIBS") cc-ldlibs)))))))
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(defun cc-clean ()
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"Find Makefile and call the `clean' rule. If no Makefile is
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found, no action is taken. The previous `compile' command is then
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restored."
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(interactive)
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(let (compile-command (makefile (get-closest-pathname)))
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(when makefile
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(compile (format "make -k -f '%s' clean" makefile)))))
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(defun cc-fmt ()
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"Run uncrustify(1) on current buffer or region."
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(interactive)
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(unless mark-active
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(mark-whole-buffer))
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(when (> (point) (mark))
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(exchange-point-and-mark))
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(let ((status)
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(formatbuf (get-buffer-create "*C format buffer*")))
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(setq status
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(call-process-region (point) (mark) "uncrustify" nil formatbuf nil "-lc" "-q"))
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(if (/= status 0)
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(error "Bad formatted C file")
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(delete-region (point) (mark))
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(insert-buffer formatbuf)
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(kill-buffer formatbuf))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Semantic options.
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;; Semanticdb folders must be set before starting semantic.
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(setq semanticdb-default-save-directory (concat emacs-cache-folder "semanticdb"))
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(semantic-mode 1)
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;; Extra semantic support
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;; Example:
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; (when (fboundp 'semantic-add-system-include)
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; (semantic-add-system-include "new/header/dir" 'c++-mode)
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; (add-to-list 'auto-mode-alist (cons qt4-base-dir 'c++-mode))
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; (add-hook
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; 'c++-mode-hook
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; (lambda ()
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; (when semantic-mode
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; (add-to-list 'semantic-lex-c-preprocessor-symbol-file "new/header/dir/config.h")))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; C-mode
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;; WARNING: this style is a work-in-progress.
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(c-add-style
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"ambrevar"
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`((c-comment-only-line-offset . 0)
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(c-auto-align-backslashes . nil)
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(c-basic-offset . ,tab-width)
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(c-offsets-alist
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(arglist-cont-nonempty . +)
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(arglist-intro . +)
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(c . 0)
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(case-label . 0)
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(cpp-define-intro . 0)
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(cpp-macro . 0)
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(knr-argdecl-intro . 0)
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(label . 0)
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(statement-block-intro . +)
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(statement-cont . +)
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(substatement-label . 0)
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(substatement-open . 0)
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)))
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;; Note that in Emacs 24, cc-mode calls its hooks manually in each mode init
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;; function. Since cc modes belong to prog-mode, each hook is called another
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;; time at the end of the initialization. No big deal since we only set some
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;; variables.
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(mapcar
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(lambda (mode-hook)
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(add-hook-and-eval
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mode-hook
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(lambda ()
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(c-set-style "ambrevar") ;; We override existing values.
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(add-hook 'compilation-before-hook 'cc-set-compiler nil t)
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(local-set-key (kbd "<f9>") 'cc-clean)
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(local-set-key (kbd "M-.") 'semantic-ia-fast-jump)
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(local-set-key (kbd "C-c C-d") 'semantic-ia-show-summary)
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(local-set-key (kbd "M-TAB") 'semantic-complete-analyze-inline)
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(when (fboundp 'company-mode)
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(company-mode)
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(if (fboundp 'helm-company)
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(local-set-key (kbd "M-TAB") 'helm-company)
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(local-set-key (kbd "M-TAB") 'company-complete)))
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(local-set-key (kbd "C-c o") 'ff-find-other-file)
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(local-set-key (kbd "C-c m") 'cc-main)
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;; The cc-fmt hook is disable since there is no standard C formatting,
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;; unlike for Go.
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; (add-hook 'before-save-hook 'cc-fmt nil t)
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(local-set-key (kbd "C-M-e") (lambda () (interactive) (c-beginning-of-defun -1))))))
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'(c-mode-hook c++-mode-hook))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Skeletons
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;; Note that it is possible to extend the skel syntax with
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;; `skeleton-further-elements'. For instance:
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; (setq skeleton-further-elements '((q "\"")))
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(define-skeleton cc-debug
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"Insert debug macros."
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nil
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> "#ifdef DEBUG
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#define DEBUG_CMD(CMD) do {CMD;} while(0)
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#else
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#define DEBUG_CMD(CMD) do {} while(0)
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#endif
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"
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'(insert-and-indent
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"#define DEBUG_STR(STR) DEBUG_CMD(fprintf(stderr, \":: %s\\n\", STR))
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#define DEBUG_PRINT(...) DEBUG_CMD( \\
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fprintf(stderr, \"\\n\\033[31;1mDEBUG:\\033[0m %s:%d:%s()\\t\", __FILE__, __LINE__, __func__); \\
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fprintf(stderr, __VA_ARGS__); \\
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fprintf(stderr, \"\\n\"); \\
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)"))
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(define-skeleton cc-getopt
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"Insert a getopt template."
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nil
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> "int opt;" \n
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"while ((opt = getopt(argc, argv, \":hV\")) != -1) {" \n
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"switch(opt) {" \n
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"case 'h':" > \n
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"usage(argv[0]);" \n
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"return 0;" \n
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"case 'V':" > \n
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"version();" \n
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"return 0;" \n
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"case ':':" > \n
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"fprintf(stderr, \"ERROR: -%c needs an argument.\\nTry '%s -h' for more information.\\n\", optopt, argv[0]);" \n
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"return EXIT_FAILURE;" \n
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"case '?':" > \n
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"fprintf(stderr, \"ERROR: Unknown argument %c.\\nTry '%s -h' for more information.\\n\", optopt, argv[0]);" \n
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"return EXIT_FAILURE;" \n
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"default:" > \n
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"usage(argv[0]);" \n
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"return EXIT_SUCCESS;" \n
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"}" > \n
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"}" > "\n" \n
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"if (optind >= argc) {" \n
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"fprintf(stderr, \"Expected argument after options\\n\");" \n
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"exit(EXIT_FAILURE);" \n
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"}" > \n)
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(define-skeleton cc-loadfile
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"Insert loadfile function."
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nil
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"unsigned long loadfile(const char *path, char **buffer_ptr) {" \n
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"#define MAX_FILESIZE 1073741824 /* One gigabyte */" > "\n" \n
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"/* Handle variable. */" \n
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"char *buffer;" "\n" \n
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"FILE *file = fopen(path, \"rb\");" \n
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"if (file == NULL) {" \n
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"perror(path);" \n
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"return 0;" \n
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"}" > "\n" \n
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"fseek(file, 0, SEEK_END);" \n
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"long length = ftell(file);" \n
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"/* fprintf(stdout, \"Note: file %s is %u bytes long.\\n\", path, length); */" "\n" \n
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"if (length > MAX_FILESIZE) {" \n
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"fprintf(stderr, \"%s size %ld is bigger than %d bytes.\\n\", path, length, MAX_FILESIZE);" \n
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"fclose(file);" \n
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"return 0;" \n
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"}" > "\n" \n
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"fseek(file, 0, SEEK_SET);" \n
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"buffer = (char *)malloc(length + 1);" \n
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"if (buffer == NULL) {" \n
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"perror(\"malloc\");" \n
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"fclose(file);" \n
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"return 0;" \n
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"}" > "\n" \n
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"if (fread(buffer, 1, length, file) == 0) {" \n
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"fclose(file);" \n
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"return 0;" \n
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"}" > "\n" \n
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"buffer[length] = '\\0';" \n
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"fclose(file);" "\n" \n
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"*buffer_ptr = buffer;" \n
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"return length;" \n
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"}" > \n)
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(define-skeleton cc-main
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"Insert main function with basic includes."
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nil
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> "#include <inttypes.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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int main(int argc, char **argv) {" \n
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> @ _ \n
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> "return 0;
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}" \n)
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(define-skeleton cc-usage-version
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"Insert usage() and version() functions."
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"Synopsis: "
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> "static void usage(const char *executable) {" \n
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"printf(\"Usage: %s [OPTIONS]\\n\\n\", executable);" \n
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"puts(\"" str "\\n\");" "\n" \n
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"puts(\"Options:\");" \n
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"puts(\" -h Print this help.\");" \n
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"puts(\" -V Print version information.\");" "\n" \n
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"puts(\"\");" \n
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"printf(\"See %s for more information.\\n\", MANPAGE);" \n
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"}" > "\n" \n
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"static void version() {" \n
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"printf(\"%s %s\\n\", APPNAME, VERSION);" \n
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"printf(\"Copyright © %s %s\\n\", YEAR, AUTHOR);" \n
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"}" > \n)
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(provide 'mode-cc)
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