ambevar-dotfiles/.emacs.d/mode-cc.el

335 lines
9.9 KiB
EmacsLisp

;;==============================================================================
;; C/C++
;;==============================================================================
;; Note: maybe this should be split in mode-c and mode-c++.
(defcustom cc-ldlibs "-lm -pthread"
"Custom linker flags for C/C++ linkage."
:safe 'stringp)
(make-variable-buffer-local 'cc-ldlibs)
(defcustom cc-ldflags ""
"Custom linker libs for C/C++ linkage."
:safe 'stringp)
(make-variable-buffer-local 'cc-ldflags)
(defun cc-set-compiler ()
"Set compile command to be nearest Makefile.
The Makefile is looked up in parent folders. If no Makefile is
found, then a configurable command line is provided.\n
Requires `get-closest-pathname'."
(interactive)
(require 'functions)
(hack-local-variables)
(let ((makefile (get-closest-pathname)))
(if makefile
(set (make-local-variable 'compile-command) (format "make -k -C %s" (file-name-directory makefile)))
(set (make-local-variable 'compile-command)
(let
((cppp (eq major-mode 'c++-mode))
(file (file-name-nondirectory buffer-file-name)))
(format "%s %s -o %s %s %s %s"
(if cppp
(or (getenv "CXX") "g++")
(or (getenv "CC") "gcc"))
file
(file-name-sans-extension file)
(if cppp
(or (getenv "CPPFLAGS") "-Wall -Wextra -Wshadow -DDEBUG=9 -g3 -O0")
(or (getenv "CFLAGS") "-ansi -pedantic -std=c99 -Wall -Wextra -Wshadow -DDEBUG=9 -g3 -O0"))
(or (getenv "LDFLAGS") cc-ldflags)
(or (getenv "LDLIBS") cc-ldlibs)))))))
(defun cc-clean ()
"Find Makefile and call the `clean' rule. If no Makefile is
found, no action is taken. The previous `compile' command is then
restored."
(interactive)
(when (get-closest-pathname)
(let ((compile-command-backup compile-command))
(compile (format "make -k -f '%s' clean" (get-closest-pathname)))
(setq compile-command compile-command-backup))))
;;==============================================================================
;; C-mode
;;==============================================================================
(c-add-style
"peter"
'((c-basic-offset . 4)
(c-comment-only-line-offset . 0)
(c-hanging-braces-alist
(brace-list-open)
(brace-entry-open)
(substatement-open after)
(block-close . c-snug-do-while)
(arglist-cont-nonempty))
(c-cleanup-list brace-else-brace)
(c-offsets-alist
(statement-block-intro . +)
(knr-argdecl-intro . 0)
(substatement-open . 0)
(substatement-label . 0)
(label . 0)
(case-label . +)
(statement-cont . +))))
;; Note that in Emacs 24, cc-mode calls its hooks manually in each mode init
;; function. Since cc modes belong to prog-mode, each hook is called another
;; time at the end of the initialization. No big deal since we only set some
;; variables.
(mapcar
(lambda (mode-hook)
(add-hook-and-eval
mode-hook
(lambda ()
(c-set-style "peter")
(add-hook 'compilation-before-hook 'cc-set-compiler nil t)
(local-set-key (kbd "<f9>") 'cc-clean)
(local-set-key (kbd "M-TAB") 'semantic-complete-analyze-inline)
(local-set-key (kbd "C-c (") 'cc-function)
(local-set-key (kbd "C-c C-f") 'cc-for)
(local-set-key (kbd "C-c C-i") 'cc-if)
(local-set-key (kbd "C-c C-p") 'cc-printf)
(local-set-key (kbd "C-c I") 'cc-include-local)
(local-set-key (kbd "C-c i") 'cc-include)
(local-set-key (kbd "C-c m") 'cc-main)
;; (local-set-key "." 'semantic-complete-self-insert) ; This is a bit slow.
;; (local-set-key ">" 'semantic-complete-self-insert)
(local-set-key (kbd "C-M-e") (lambda () (interactive) (c-beginning-of-defun -1))))))
'(c-mode-hook c++-mode-hook))
;;==============================================================================
;; Qt semantic support
;;==============================================================================
;; Qt base directory, meaning the directory where the 'Qt' directory can be found.
;; Adapt accordingly.
(when (fboundp 'semantic-add-system-include)
(setq qt4-base-dir "/usr/include/qt4")
(setq qt4-gui-dir (concat qt4-base-dir "/QtGui"))
(semantic-add-system-include qt4-base-dir 'c++-mode)
(semantic-add-system-include qt4-gui-dir 'c++-mode)
(add-to-list 'auto-mode-alist (cons qt4-base-dir 'c++-mode))
(add-hook
'c++-mode-hook
(lambda ()
(when semantic-mode
(add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qconfig.h"))
(add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qconfig-large.h"))
(add-to-list 'semantic-lex-c-preprocessor-symbol-file (concat qt4-base-dir "/Qt/qglobal.h"))))))
;;==============================================================================
;; Skel
;;==============================================================================
;; Note that it is possible to extend the skel syntax with
;; `skeleton-further-elements'. For instance:
; (setq skeleton-further-elements '((q "\"")))
(define-skeleton cc-case
"Insert a case/switch statement."
"expression: "
> "switch (" str ") {" \n
( "Value, %s: "
> "case " > str ":" \n
> _ \n
"break;" \n)
"default:" > \n
> _ \n
"break;" \n
resume:
"}" > \n)
(define-skeleton cc-debug
"Insert debug macros."
nil
"#ifdef DEBUG
#define DEBUG_CMD(CMD) do {CMD;} while(0)
#else
#define DEBUG_CMD(CMD) do {} while(0)
#endif
#define DEBUG_STR(STR) DEBUG_CMD(fprintf(stderr, \":: %s\\n\", STR))
#define DEBUG_PRINT(...) DEBUG_CMD ( \\
fprintf(stderr, \"\\n\\033[31;1mDEBUG:\\033[0m %s:%d:%s()\\t\", __FILE__, __LINE__, __func__); \\
fprintf(stderr, __VA_ARGS__);\\
fprintf(stderr, \"\\n\"); \\
)")
(define-skeleton cc-for
"for loop."
nil
'(setq str (skeleton-read "Variable: " "i"))
> "for (" @ (skeleton-read "" (concat str " = 0")) "; "
@ (skeleton-read "" (concat str " < N")) "; "
@ (skeleton-read "" (concat str "++")) ") {" \n
@ _ \n
"}" > )
(define-skeleton cc-function
"Insert punctuation for function."
"Arguments: " '(just-one-space) "(" @ str ") {" \n
> _ \n
"}" > \n)
(define-skeleton cc-getopt
"Insert a getopt template."
nil
'(require 'functions)
'(insert-and-indent "int opt;
while ((opt = getopt (argc, argv, \":hV\")) != -1)
{
switch (opt)
{
case 'h':
usage (argv[0]);
return 0;
case 'V':
version ();
return 0;
case ':':
fprintf (stderr, \"ERROR: -%c needs an argument.\\nTry '%s -h' for more information.\\n\", optopt, argv[0]);
return EXIT_FAILURE;
case '?':
fprintf (stderr, \"ERROR: Unknown argument %c.\\nTry '%s -h' for more information.\\n\", optopt, argv[0]);
return EXIT_FAILURE;
default:
usage (argv[0]);
return EXIT_SUCCESS;
}
}
if (optind >= argc) {
fprintf(stderr, \"Expected argument after options\\n\");
exit (EXIT_FAILURE);
}"))
(define-skeleton cc-if
"Insert an if statement."
"Condition: "
> "if (" @ str ") {" \n
> @ _ \n
("Other condition, %s: "
"} else if (" > @ str ") {" \n
@ \n)
"} else {" > \n
@ \n
resume:
"}" > \n)
(define-skeleton cc-include
"Insert system include."
"Header: "
\n "#include <" @ str ">" \n)
(define-skeleton cc-include-local
"Insert local include."
"Header: "
\n "#include \"" @ str "\"" \n)
(define-skeleton cc-loadfile
"Insert loadfile function."
nil
"unsigned long loadfile (const char * path, char ** buffer_ptr) {
#define MAX_FILESIZE 1073741824 /* One gigabyte */
/* Handle variable. */
char* buffer;
FILE* file = fopen(path, \"rb\");
if (file == NULL)
{
perror(path);
return 0;
}
fseek(file, 0, SEEK_END);
long length = ftell(file);
/* fprintf (stdout, \"Note: file %s is %u bytes long.\\n\", path, length); */
if (length > MAX_FILESIZE)
{
fprintf (stderr, \"%s size %ld is bigger than %d bytes.\\n\", path, length, MAX_FILESIZE);
fclose(file);
return 0;
}
fseek(file, 0, SEEK_SET);
buffer = (char*)malloc(length + 1);
if (buffer == NULL)
{
perror(\"malloc\");
fclose(file);
return 0;
}
if(fread(buffer, 1, length, file) == 0)
{
fclose(file);
return 0;
}
buffer[length] = '\\0';
fclose(file);
*buffer_ptr = buffer;
return length;
}")
(define-skeleton cc-main
"Insert main function with basic includes."
nil
> "#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int main(int argc, char** argv) {" \n
> @ _ \n
> "return EXIT_SUCCESS;
}" \n)
(define-skeleton cc-printf
"fprintf/printf snippet.
If no file descriptor is provided, switch do printf. The format
string is properly parsed (%% are not taken into account).\n
Requires `count-percents'."
nil
'(require 'functions)
'(setq v1 (skeleton-read "File desc: " "stderr"))
(if (string= v1 "") "printf (" (concat "fprintf (" v1 ", "))
"\"" (setq v1 (skeleton-read "Format string: " "%s\\n")) "\""
'(setq v2 (count-percents v1))
'(setq v1 0)
'(while (< v1 v2)
(setq v1 (1+ v1))
(skeleton-insert '(nil (concat ", " (skeleton-read "Value: ")))))
@ ");")
(define-skeleton cc-usage-version
"Insert usage() and version() functions."
"Synopsis"
> "static void usage (const char *executable) {
printf (\"Usage: %s [OPTIONS]\\n\\n\", executable);
puts (\"" str "\\n\");
puts (\"Options:\");
puts (\" -h Print this help.\");
puts (\" -V Print version information.\");
puts (\"\");
printf (\"See %s for more information.\\n\", MANPAGE);
}
static void version () {
printf (\"%s %s\\n\", APPNAME, VERSION);
printf (\"Copyright © %s %s\\n\", YEAR, AUTHOR);
}" \n)
(provide 'mode-cc)