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/*** cmd.c - handle simple keyboard interactions
*
* Copyright <C> 1988, Microsoft Corporation
*
* Revision History:
* 26-Nov-1991 mz Strip off near/far
*
*************************************************************************/
#include "mep.h"
#include "keyboard.h"
#define DEBFLAG CMD
struct cmdDesc cmdUnassigned = { "unassigned", unassigned, 0, FALSE };
/*** unassigned - function assigned to unassigned keystrokes
*
* display an informative message about the unassigned key
*
* Input:
* Standard editing function
*
* Output:
* Returns FALSE
*
*************************************************************************/
flagType
unassigned (
CMDDATA argData,
ARG *pArg,
flagType fMeta
) {
buffer buf;
CodeToName ( (WORD)argData, buf);
printerror ("%s is not assigned to any editor function",buf);
return FALSE;
pArg; fMeta;
}
/*** confirm - ask our dear user a yes/no question
*
* Purpose:
* Asks the user a yes/no question, and gets his single character response. If
* in a macro, the reponse may also come from the macro stream, or from the
* passed "if in a macro" default response.
*
* Input:
* fmtstr = prompt format string
* arg = prompt format parameters
*
* Output:
* TRUE if 'y', else FALSE.
*
*************************************************************************/
flagType
confirm (
char *fmtstr,
char *arg
) {
return (flagType)(askuser ('n', 'y', fmtstr, arg) == 'y');
}
/*** askuser - ask our dear user a question
*
* Purpose:
* Asks the user a question, and gets his single character response. If in
* a macro, the reponse may also come from the macro stream, or from the
* passed "if in a macro" default response.
*
* Input:
* defans = default answer for non-alpha responses
* defmac = default answer if executing in a macro and no "<" is present
* fmtstr = prompt format string
* arg = prompt format parameters
*
* Output:
* the lowercase character response. If the user presses <cancel>, the
* integer -1 is returned.
*
*************************************************************************/
int
askuser (
int defans,
int defmac,
char *fmtstr,
char *arg
) {
int c;
int x;
PCMD pcmd;
switch (c = fMacResponse()) {
case 0:
if ((c = defmac) == 0) {
goto askanyway;
}
break;
default:
break;
case -1:
askanyway:
DoDisplay ();
consoleMoveTo( YSIZE, x = domessage (fmtstr, arg));
c = (pcmd = ReadCmd())->arg & 0xff;
SETFLAG (fDisplay,RCURSOR);
if ((PVOID)pcmd->func == (PVOID)cancel) {
sout (x, YSIZE, "cancelled", infColor);
return -1;
} else {
if (!isalpha (c)) {
c = defans;
}
vout (x, YSIZE, (char *)&c, 1, infColor);
}
break;
}
return tolower(c);
}
/*** FlushInput - remove all typeahead.
*
* FlushInput is called when some action invalidates all input.
*
* Input:
* none
*
* Output:
* Returns nothing
*
*************************************************************************/
void
FlushInput (
void
) {
register BOOL MoreInput;
while (MoreInput = TypeAhead()) {
ReadCmd ();
}
}
/*** fSaveDirtyFile - Prompt the user to save or lose dirty files
*
* Purpose:
*
* Called just before exit to give the user control over soon-to-be-lost
* editing changes.
*
* Input: None.
*
* Output:
*
* Returns TRUE if the user wants to exit, FALSE if not.
*
*************************************************************************/
flagType
fSaveDirtyFiles (
void
) {
REGISTER PFILE pFile;
int cDirtyFiles = 0;
flagType fAgain;
buffer buf;
assert (_pfilechk());
for (pFile = pFileHead; pFile; pFile = pFile->pFileNext) {
if ((FLAGS(pFile) & (DIRTY | FAKE)) == DIRTY) {
if (++cDirtyFiles == 2) {
do {
fAgain = FALSE;
switch (askuser (-1, -1, GetMsg (MSG_SAVEALL, buf), NULL)) {
case 'y':
SaveAllFiles ();
return TRUE;
case 'n':
break;
case -1:
return FALSE;
default:
fAgain = TRUE;
}
} while (fAgain);
}
do {
fAgain = FALSE;
switch (askuser (-1, -1, GetMsg (MSG_SAVEONE, buf), pFile->pName)) {
case 'y':
FileWrite (pFile->pName, pFile);
case 'n':
break;
case -1:
return FALSE;
default:
fAgain = TRUE;
}
} while (fAgain);
}
}
return TRUE;
}
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