[unix-history] / usr / src / usr.bin / window / cmd2.c

#ifndef lint
static  char *sccsid = "@(#)cmd2.c      3.27 84/04/08";
#endif

#include "defs.h"

char *help_shortcmd[] = {
       "{1-9}   Select window {1-9} and return to conversation mode.",
       "%{1-9}  Select window {1-9} but stay in command mode.",
       "escape  Return to conversation mode without changing window.",
       "^^      Return to conversation mode and change to previous window.",
       "c{1-9}  Close window {1-9}.",
       "w       Open a new window.",
       "m{1-9}  Move window {1-9}.",
       "M{1-9}  Move window {1-9} to previous position.",
       "{^Y^E}  Scroll {up, down} one line",
       "{^U^D}  Scroll {up, down} half a window.",
       "{^B^F}  Scroll {up, down} a full window.",
       "{hjkl}  Move cursor {left, down, up, right}.",
       "^L      Redraw screen.",
       "^Z      Suspend.",
       "q       Quit.",
       0
};
char *help_longcmd[] = {
       ":%{1-9}               Select window {1-9}.",
       ":close {1-9} . . .    Close windows.",
       ":close all            Close all windows.",
       ":cursor modes         Set the cursor modes.",
       ":escape C             Set escape character to C.",
       ":foreground {1-9} [off]",
       "                      Make {1-9} a foreground window.",
       ":label {1-9} string   Label window {1-9}.",
       ":list                 List all windows.",
       ":nline lines          Set the default number of lines",
       "                      in window text buffers.",
       ":source filename      Execute commands in ``filename''.",
       ":terse [off]          Turn on (or off) terse mode.",
       ":unset variable       Deallocate ``variable''.",
       ":variable             List all variables.",
       ":window row col nrow ncol [nline label]",
       "                      Open a window at ``row'', ``col''",
       "                      of size ``nrow'', ``ncol'',",
       "                      with ``nline'', and ``label''.",
       ":write {1-9} string . . .",
       "                      Write strings to window {1-9}.",
       0
};

c_help()
{
       register struct ww *w;

       if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
               error("Can't open help window: %s.", wwerror());
               return;
       }
       wwprintf(w, "The escape character is %c, which gets you into command mode.\n\n",
               escapec);
       if (help_print(w, "Short commands", help_shortcmd) >= 0)
               (void) help_print(w, "Long commands", help_longcmd);
       closeiwin(w);
}

help_print(w, name, list)
register struct ww *w;
char *name;
register char **list;
{
       wwprintf(w, "%s:\n\n", name);
       while (*list)
               switch (more(w, 0)) {
               case 0:
                       wwputs(*list++, w);
                       wwputc('\n', w);
                       break;
               case 1:
                       wwprintf(w, "%s: (continued)\n\n", name);
                       break;
               case 2:
                       return -1;
               }
       return more(w, 1) == 2 ? -1 : 0;
}

c_quit()
{
       char oldterse = terse;

       setterse(0);
       wwputs("Really quit [yn]? ", cmdwin);
       wwcurtowin(cmdwin);
       while (wwpeekc() < 0)
               wwiomux();
       if (wwgetc() == 'y') {
               wwputs("Yes", cmdwin);
               quit++;
       } else
               wwputs("\r\n", cmdwin);
       setterse(!quit && oldterse);
}