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top - metrics - downloadIndex: T h
Length: 8885 (0x22b5)
Types: TextFile
Names: »help.c«
└─⟦9ae75bfbd⟧ Bits:30007242 EUUGD3: Starter Kit
└─⟦4fd8323b9⟧ »EurOpenD3/mail/elm2.3.tar.Z«
└─⟦698c4f91f⟧
└─⟦this⟧ »src/help.c«
static char rcsid[] = "@(#)$Id: help.c,v 4.1 90/04/28 22:43:11 syd Exp $";
/*******************************************************************************
* The Elm Mail System - $Revision: 4.1 $ $State: Exp $
*
* Copyright (c) 1986, 1987 Dave Taylor
* Copyright (c) 1988, 1989, 1990 USENET Community Trust
*******************************************************************************
* Bug reports, patches, comments, suggestions should be sent to:
*
* Syd Weinstein, Elm Coordinator
* elm@DSI.COM dsinc!elm
*
*******************************************************************************
* $Log: help.c,v $
* Revision 4.1 90/04/28 22:43:11 syd
* checkin of Elm 2.3 as of Release PL0
*
*
******************************************************************************/
/*** help routine for ELM program
***/
#include <ctype.h>
#include "headers.h"
help(pager_help)
int pager_help;
{
/** Process the request for help [section] from the user.
If pager_help is TRUE, then act a little differently from
if pager_help is FALSE (index screen)
**/
char ch; /* character buffer for input */
char *s; /* string pointer... */
int prompt_line, info_line;
static char help_message[] =
"Press the key you want help for, '?' for a key list, or '.' to exit help";
static char help_prompt[] = "Help for key: ";
MoveCursor(LINES-4,0);
CleartoEOS();
if(pager_help) {
put_border();
Centerline(LINES, help_message);
prompt_line = LINES-3;
} else {
Centerline(LINES-4, "ELM Help System");
Centerline(LINES-3, help_message);
prompt_line = LINES-2;
}
info_line = prompt_line + 1;
PutLine0(prompt_line, 0, help_prompt);
do {
MoveCursor(prompt_line, strlen(help_prompt));
ch = ReadCh();
if (ch == '.') return(0); /* zero means footer rewrite only */
s = "Unknown command. Use '?' for a list of commands.";
switch (ch) {
case '?': display_helpfile(pager_help? PAGER_HELP : MAIN_HELP);
return(1);
case '$': if(!pager_help) s =
"$ = Force resynchronization of the current folder. This will purge deleted mail.";
break;
case '!': s =
"! = Escape to the Unix shell of your choice, or just to enter commands.";
break;
case '@': if(!pager_help) s =
"@ = Debug - display a summary of the messages on the header page.";
break;
case '|': s =
"| = Pipe the current message or tagged messages to the command specified.";
break;
case '#': if(!pager_help) s =
"# = Debug - display all information known about current message.";
break;
case '%': s =
"% = Debug - display the computed return address of the current message.";
break;
case '*': if(!pager_help)
s = "* = Go to the last message in the current folder.";
break;
case '-': if(!pager_help) s =
"- = Go to the previous page of messages. This is the same as the LEFT arrow.";
break;
case '=': if(!pager_help) s =
"'=' = Go to the first message in the current folder.";
break;
case ' ': if(pager_help) s =
"<space> = Display next screen of current message (or first screen of next).";
else s = "<space> = Display the current message.";
break;
case '+': if(!pager_help)
s =
"+ = Go to the next page of messages. This is the same as the RIGHT arrow.";
break;
case '/': if(!pager_help)
s = "/ = Search for specified pattern in folder.";
break;
case '<': s =
"< = Scan current message for calendar entries (if enabled).";
break;
case '>': s =
"> = Save current message or tagged messages to specified file.";
break;
case '^': if(!pager_help) s =
"^ = Toggle the Delete/Undelete status of the current message.";
break;
case 'a': if(!pager_help) s =
"a = Enter the alias sub-menu section. Create and display aliases.";
break;
case 'b': s =
"b = Bounce (remail) a message to someone as if you have never seen it.";
break;
case 'C': s =
"C = Copy current message or tagged messages to specified file.";
break;
case 'c': if(!pager_help) s =
"c = Change folders, leaving the current folder as if 'quitting'.";
break;
case 'd': s = "d = Mark the current message for future deletion.";
break;
case ctrl('D') : if(!pager_help) s =
"^D = Mark for deletion all messages with the specified pattern.";
break;
case 'e': if(!pager_help) s =
"e = Invoke the editor on the entire folder, resynchronizing when done.";
break;
case 'f': s =
"f = Forward the current message to someone, return address is yours.";
break;
case 'g': s =
"g = Group reply not only to the sender, but to everyone who received msg.";
break;
case 'h': s =
"h = Display message with all Headers (ignore weedout list).";
break;
case 'i': if(pager_help) s = "i = Return to the index.";
break;
case 'J': s = "J = Go to the next message.";
break;
case 'j': s =
"j = Go to the next undeleted message. This is the same as the DOWN arrow.";
break;
case 'K': s = "K = Go to the previous message.";
break;
case 'k': s =
"k = Go to the previous undeleted message. This is the same as the UP arrow.";
break;
case 'l': if(!pager_help) s =
"l = Limit displayed messages based on the specified criteria.";
break;
case 'm': s =
"m = Create and send mail to the specified person or persons.";
break;
case 'n': if(pager_help)
s = "n = Display the next message.";
else
s =
"n = Display the current message, then move current to next messge.";
break;
case 'o': if(!pager_help) s = "o = Go to the options submenu.";
break;
case 'p': s =
"p = Print the current message or the tagged messages.";
break;
case 'q': if(pager_help) s =
"q = Quit the pager and return to the index.";
else s =
"q = Quit the mailer, asking about deletion, saving, etc.";
break;
case 'r': s =
"r = Reply to the message. This only sends to the originator of the message.";
break;
case 's': s =
"s = Save current message or tagged messages to specified file.";
break;
case 't': s =
"t = Tag a message for further operations (or untag if tagged).";
break;
case ctrl('T') : if(!pager_help) s =
"^T = Tag all messages with the specified pattern.";
break;
case 'u': s =
"u = Undelete - remove the deletion mark on the message.";
break;
case 'x': s = "x = Exit the mail system quickly.";
break;
case 'Q': if(!pager_help) s =
"Q = Quick quit the mailer, save read, leave unread, delete deleted.";
break;
case '\n':
case '\r': if(pager_help)
s =
"<return> = Display current message, or (builtin pager only) scroll forward.";
else
s = "<return> = Display the current message.";
break;
case ctrl('L'): if(!pager_help) s = "^L = Rewrite the screen.";
break;
case ctrl('?'): /* DEL */
case ctrl('Q'): if(!pager_help) s = "Exit the mail system quickly.";
break;
default : if (isdigit(ch) && !pager_help)
s = "<number> = Make specified number the current message.";
}
ClearLine(info_line);
Centerline(info_line, s);
} while (ch != '.');
/** we'll never actually get here, but that's okay... **/
return(0);
}
display_helpfile(section)
int section;
{
/*** Help me! Read file 'helpfile.<section>' and echo to screen ***/
char buffer[SLEN];
sprintf(buffer, "%s/%s.%d", helphome, helpfile, section);
return(display_file(buffer));
}
display_file(file)
char *file;
{
/*** Display file to screen ***/
FILE *fileptr;
int lines=0;
char buffer[SLEN];
if ((fileptr = fopen(file,"r")) == NULL) {
dprint(1, (debugfile,
"Error: Couldn't open file %s (help)\n", file));
error1("Couldn't open file %s.",file);
return(FALSE);
}
ClearScreen();
while (fgets(buffer, SLEN, fileptr) != NULL) {
if (lines > LINES-3) {
PutLine0(LINES,0,"Press <space> to continue, 'q' to return.");
if(ReadCh() == 'q') {
clear_error();
fclose(fileptr);
return(TRUE);
}
lines = 0;
ClearScreen();
Write_to_screen("%s\r", 1, buffer);
}
else
Write_to_screen("%s\r", 1, buffer);
lines += strlen(buffer)/COLUMNS + 1;
}
PutLine0(LINES,0,"Press any key to return.");
(void) ReadCh();
clear_error();
fclose(fileptr);
return(TRUE);
}