silentbob/plugins/plugin_editor.cxx

   1 /*
   2  * (c) Oleg Puchinin 2006
   3  * graycardinalster@gmail.com
   4  *
   5  */
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <fcntl.h>
  11 #include <gclib/gclib.h>
  12 #include <sys/wait.h>
  13 #include <mod.h>
  14 #include <head.h>
  15 #include <dbg.h>
  16
  17 #define TMP_FILE "/tmp/.silent_bob.tmp.cpp"
  18 extern "C" DArray * plugin_init (struct env_t *env);
  19 struct env_t *ENV;
  20 char * editor;
  21
  22 void try_editor ()
  23 {
  24         int pid;
  25         int fd;
  26         int status;
  27         char m_buf[1024];
  28
  29         pid = fork ();
  30         if (pid < 0)
  31                 return;
  32
  33         if (pid == 0) {
  34                 unlink (TMP_FILE);
  35                 fd = open (TMP_FILE, O_WRONLY | O_CREAT);
  36                 fchmod (fd, S_IREAD | S_IWRITE);
  37                 if (fd == -1) {
  38                         perror ("open");
  39                         exit (1);
  40                 }
  41                 dup2 (fd, fileno (stdout));
  42                 return;
  43         } else {
  44                 if ((waitpid (pid, &status, 0) < 0) ||
  45                         status != 0)
  46                         exit (status);
  47
  48                 sprintf (m_buf, "%s %s", editor, TMP_FILE);
  49                 system (m_buf);
  50                 exit (0);
  51         }
  52 }
  53
  54 char editor_opt (DArray * d_opts, int * i)
  55 {
  56         char * S;
  57         if (! d_opts || ! i)
  58                 return 0;
  59
  60         if (editor != NULL)
  61                 return 1;
  62
  63         S = d_opts->get (*i);
  64         if (EQ(S, "-g") || EQ(S, "--gvim"))
  65                 editor = (char *) "gvim";
  66
  67         if (EQ(S, "--emacs"))
  68                 editor = (char *) "emacs";
  69
  70         if (EQ(S, "--nano"))
  71                 editor = (char *) "nano";
  72
  73         if (editor != NULL) {
  74                 try_editor ();
  75                 return 1;
  76         }
  77
  78         return 0;
  79 }
  80
  81 void short_info ()
  82 {
  83         printf ("Editors.");
  84 }
  85
  86 void long_info ()
  87 {
  88         printf ("Editors.\n");
  89         printf ("Version: 1.0\n");
  90         printf ("Few editors for SilentBob:\n"
  91                         "\t-g --gvim\t-\tGVim\n"
  92                         "\t--emacs\t\t-\tEmacs\n"
  93                         "\t--nano\t\t-\tnano\n");
  94 }
  95
  96 DArray * plugin_init (struct env_t *env)
  97 {
  98         DArray * Ret;
  99         mod_t * plug;
 100
 101         plug = CNEW (mod_t, 1);
 102         memset (plug, 0, sizeof (mod_t));
 103         plug->Version = strdup ("1.0");
 104         plug->opt = editor_opt;
 105         plug->Name = strdup ("Editors");
 106         plug->short_info = short_info;
 107         plug->long_info = long_info;
 108
 109         ENV->listOptions->add ( "-g");
 110         ENV->listOptions->add ( "--gvim");
 111         ENV->listOptions->add ( "--emacs");
 112         ENV->listOptions->add ( "--nano");
 113
 114         editor = NULL;
 115         Ret = new DArray (1);
 116         Ret->add (LPCHAR (plug));
 117         return Ret;
 118 }