static DEFAULT SkpCtU() /* skip control-U command */
{
BOOLEAN TTrace; /* temp: holds trace flag */
if (CBfPtr == CStEnd)
if (MStTop < 0) /* if not in a macro */
{
ErrUTC(); /* unterminated command */
return FAILURE;
}
else
return SUCCESS;
++CBfPtr;
TTrace = TraceM; /* save trace mode flag */
TraceM = FALSE; /* keep FindES from tracing */
if (FindES(ESCAPE) == FAILURE) /* find end of string */
{
TraceM = TTrace; /* restore trace mode flag */
return FAILURE;
}
TraceM = TTrace; /* restore trace mode flag */
CmdMod = '\0'; /* clear modifiers flags */
return SUCCESS;
}
/*****************************************************************************
SkpDAr()
*****************************************************************************/
static DEFAULT SkpDAr() /* skip "double text argument" command */
{
BOOLEAN TTrace; /* saves TraceM temporarily */
TTrace = TraceM; /* save trace mode flag */
TraceM = FALSE; /* keep FindES from tracing */
if (FindES(ESCAPE) == FAILURE)
{
TraceM = TTrace; /* restore trace mode flag */
return FAILURE;
}
if (CmdMod & ATSIGN) /* if at-sign modified */
--CBfPtr;
if (FindES(ESCAPE) == FAILURE)
{
TraceM = TTrace; /* restore trace mode flag */
return FAILURE;
}
TraceM = TTrace; /* restore trace mode flag */
return SUCCESS;
}
/*****************************************************************************
SkpCtA()
*****************************************************************************/
static DEFAULT SkpCtA() /* skip control-A command */
{
BOOLEAN TTrace; /* temp: holds trace flag */
TTrace = TraceM; /* save trace mode flag */
TraceM = FALSE; /* keep FindES from tracing */
if (FindES(CTRL_A) == FAILURE) /* find end of string */
{
TraceM = TTrace; /* restore trace mode flag */
return FAILURE;
}
TraceM = TTrace; /* restore trace mode flag */
CmdMod = '\0'; /* clear modifiers flags */
return SUCCESS;
}
/*****************************************************************************
SkpArg()
*****************************************************************************/
static DEFAULT SkpArg() /* skip command with text argument */
{
BOOLEAN TTrace; /* temp: holds trace flag */
TTrace = TraceM; /* save trace mode flag */
TraceM = FALSE; /* keep FindES from tracing */
if (FindES(ESCAPE) == FAILURE) /* find end of string */
{
TraceM = TTrace; /* restore trace mode flag */
return FAILURE;
}
TraceM = TTrace; /* restore trace mode flag */
CmdMod = '\0'; /* clear modifiers flags */
return SUCCESS;
}
integer ExeExc() /* execute a ! (exclamation mark) command */
{
DBGFEN(1,"ExeExc",NULL);
if (FindES('!') == FAILURE) { /* simply skip to next '!' */
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
CmdMod = '\0'; /* clear modifiers flags */
EStTop = EStBot; /* clear expression stack */
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}
integer ExeCtU() /* execute a ^U (control-U) command */
{
ptrdiff_t TmpSiz;
DBGFEN(1,"ExeCtU",NULL);
/*
* increment CBfPtr past ^U
*/
if (IncCBP() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, IncCBP() failed");
return FAILURE;
}
/*
* try to find Q-register name after ^U
*/
if (FindQR() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, FindQR() failed");
return FAILURE;
}
/*
* If there is a colon modifier, we are appending to the Q-register text.
* If there isn't a colon modifier, we are replacing the text currently
* in the Q-register. If there is any text currently in the Q-register,
* we have to zap it first.
*/
if (!(CmdMod & COLON)) { /* if no colon modifier */
if (QR->Start != NULL) { /* if not empty */
ZFree((voidptr)QR->Start); /* free the memory */
QR->Start = QR->End_P1 = NULL;
}
}
/*
* If there is a numeric argument n, we are dealing with a character to
* place into or append to the Q-register.
*/
if (EStTop > EStBot) { /* if numeric argument */
if (GetNmA() == FAILURE) { /* get numeric argument */
DBGFEX(1,DbgFNm,"FAILURE, GetNmA() failed");
return FAILURE;
}
if (CmdMod & ATSIGN) { /* it's @^U// */
/*
* increment CBfPtr to 1st delimiter
*/
if (IncCBP() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, IncCBP() failed");
return FAILURE;
}
/*
* increment CBfPtr to 2nd delimiter
*/
if (IncCBP() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, IncCBP() failed");
return FAILURE;
}
/*
* the two delimiters should be the same
*/
if (*CBfPtr != *(CBfPtr-1)) {
ErrMsg(ERR_IIA);
DBGFEX(1,DbgFNm,"FAILURE, ERR_IIA");
return FAILURE;
}
}
/*
* Increase the size of the text area by 1 character
*/
if (MakRom((size_t) 1) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, MakRom() failed");
return FAILURE;
}
/*
* Append the character to the Q-register
*/
*(QR->End_P1) = (char) NArgmt;
QR->End_P1++;
} else { /* else no numeric argument */
/*
* We must be dealing with a string, find the end of the string.
*/
if (FindES(ESCAPE) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, FindES() failed");
return FAILURE;
}
TmpSiz = CBfPtr - ArgPtr;
if (TmpSiz > 0) {
/*
* make room for the string
*/
if (MakRom((size_t)TmpSiz) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, MakRom() failed");
return FAILURE;
}
/*
* Append the string to the Q-register text
*/
MEMMOVE(QR->End_P1, ArgPtr, (size_t)TmpSiz);
QR->End_P1 += TmpSiz;
}
}
CmdMod = '\0'; /* clear modifiers flags */
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}
integer ExeS() /* execute an S command */
{
DBGFEN(1, "ExeS", NULL);
/*
* The command m,nS is illegal: the user should use m,nFB
*/
if (CmdMod & MARGIS) { /* if it's m,nS */
ErrStr(ERR_ILL, "m,nS"); /* illegal command "m,nS" */
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
/*
* If it's ::Stext$, it's a compare, not a search. The text argument is
* compared to the characters immediately following the character pointer.
* It returns -1 if the strings match, else 0. A ::Stext$ command is
* equivalent to a .,.+1:FBtext$ command, so that's the way it's implemented.
*/
if (CmdMod & DCOLON) { /* if it's ::S */
if (CmdMod & MARGIS) { /* if it's m,n::S */
ErrStr(ERR_ILL, "m,n::S");
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
if (EStTop > EStBot) { /* if it's n::S */
ErrStr(ERR_ILL, "n::S");
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
if (GapEnd == EBfEnd) { /* if nothing to search */
if (FindES(ESCAPE) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
DBGFEX(1,DbgFNm,"PushEx(0)");
return PushEx(0L,OPERAND);
}
CmdMod &= ~DCOLON; /* clear double-colon bit */
CmdMod |= COLON; /* set colon bit */
CmdMod |= MARGIS; /* set m defined bit */
MArgmt = GapBeg - EBfBeg; /* set m */
if (PushEx((long)((GapBeg-EBfBeg)+1),OPERAND) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
DBGFEX(1,DbgFNm,"ExeFB()");
return ExeFB(); /* execute FB command */
}
SrcTyp = S_SEARCH;
if (Search(false) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE");
return FAILURE;
}
CmdMod = '\0'; /* clear modifiers flags */
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}
int
BldStr(charptr XBfBeg, charptr XBfEnd, charptr* XBfPtr) /* build a string */
/* charptr XBfBeg; beginning of build-string buffer */
/* charptr XBfEnd; end of build-string buffer */
/* charptr (*XBfPtr); pointer into build-string buffer */
{
charptr EndArg; /* end of input string, plus 1 */
unsigned char TmpChr; /* temporary character */
DBGFEN(2,"BldStr",NULL);
if (FindES(ESCAPE) == FAILURE) /* move CBfPtr to end of argument */
{
DBGFEX(2,DbgFNm,"FAILURE, FindES(ESCAPE) failed");
return FAILURE;
}
CaseCv = IniSrM; /* initialize internal search mode */
BBfPtr = XBfBeg; /* initialize ptr into build-string buffer */
EndArg = CBfPtr; /* save pointer to end of argument */
CBfPtr = ArgPtr; /* reset to beginning of argument */
while (CBfPtr < EndArg)
{
if ((*CBfPtr == '^') && ((EdFlag & ED_CARET_OK) == 0))
{
if (++CBfPtr == EndArg)
{
ErrMsg(ERR_ISS);
DBGFEX(2,DbgFNm,"FAILURE, no char after ^");
return FAILURE;
}
TmpChr = To_Upper(*CBfPtr);
if ((TmpChr < '@') || (TmpChr > '_'))
{
ErrChr(ERR_IUC, *CBfPtr);
DBGFEX(2,DbgFNm,"FAILURE, bad char after ^");
return FAILURE;
}
TmpChr &= '\077';
}
else
TmpChr = *CBfPtr;
switch (TmpChr)
{
case CTRL_R:
case CTRL_Q:
if (++CBfPtr == EndArg)
{
ErrMsg(ERR_ISS);
DBGFEX(2, DbgFNm, "FAILURE");
return FAILURE;
}
*BBfPtr++ = *CBfPtr;
break;
case CTRL_V:
case CTRL_W:
if (DoCtVW(EndArg, TmpChr) == FAILURE)
{
DBGFEX(2, DbgFNm, "FAILURE, DoCtVW failed");
return FAILURE;
}
break;
case CTRL_E:
if (DoCtE(EndArg, XBfEnd) == FAILURE)
{
DBGFEX(2, DbgFNm, "FAILURE, DoCtE failed");
return FAILURE;
}
break;
default:
if (CaseCv == LOWER)
TmpChr = To_Lower(TmpChr);
else if (CaseCv == UPPER)
TmpChr = To_Upper(TmpChr);
*BBfPtr++ = TmpChr;
} /* switch(TmpChr) */
if (BBfPtr > XBfEnd)
{
ErrMsg(ERR_STL); /* string too long */
DBGFEX(2, DbgFNm, "FAILURE, string too long");
return FAILURE;
}
++CBfPtr;
}
*XBfPtr = BBfPtr;
#if DEBUGGING
sprintf(DbgSBf, "string = \"%.*s\"", (int)(BBfPtr-XBfBeg), XBfBeg);
DbgFEx(2, DbgFNm, DbgSBf);
#endif
return SUCCESS;
}
integer ExeI() /* execute an I command */
{
unsigned char InChar;
DBGFEN(1,"ExeI",NULL);
if (EStTop > EStBot) { /* if numeric argument */
if (GetNmA() == FAILURE) { /* get numeric argument */
DBGFEX(1,DbgFNm,"FAILURE, GetNmA() failed");
return FAILURE;
}
if (CmdMod & ATSIGN) { /* if it's n@I// */
if (IncCBP() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, 1st IncCBP() failed");
return FAILURE;
}
if (IncCBP() == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, 2nd IncCBP() failed");
return FAILURE;
}
if (*CBfPtr != *(CBfPtr-1)) {
ErrMsg(ERR_IIA); /* illegal insert arg */
DBGFEX(1,DbgFNm,"FAILURE, illegal insert arg");
return FAILURE;
}
} else { /* else must be nI$ */
if ((CBfPtr+1) == CStEnd) {
if (MStTop < 0) {
ErrUTC();
DBGFEX(1,DbgFNm,"FAILURE, unterminated command");
return FAILURE;
} else {
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}
}
if (*(CBfPtr+1) != ESCAPE) {
ErrMsg(ERR_IIA); /* illegal insert arg */
DBGFEX(1,DbgFNm,"FAILURE, illegal insert arg");
return FAILURE;
}
}
InChar = (char)NArgmt;
if (InsStr(&InChar, (ptrdiff_t)1) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, InsStr() failed");
return FAILURE;
}
} else { /* else no numeric argument */
if (FindES(ESCAPE) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, FindES() failed");
return FAILURE;
}
if (InsStr(ArgPtr, CBfPtr-ArgPtr) == FAILURE) {
DBGFEX(1,DbgFNm,"FAILURE, InsStr() failed");
return FAILURE;
}
}
CmdMod = '\0'; /* clear modifiers flags */
DBGFEX(1,DbgFNm,"SUCCESS");
return SUCCESS;
}