/* CCRETVAL */
int
Inputl(void)
{
CCRETVAL retval;
KEYCMD cmdnum = 0;
unsigned char tch; /* the place where read() goes */
Char ch;
int num; /* how many chars we have read at NL */
int expnum;
struct varent *crct = inheredoc ? NULL : adrof(STRcorrect);
struct varent *autol = adrof(STRautolist);
struct varent *matchbeep = adrof(STRmatchbeep);
struct varent *imode = adrof(STRinputmode);
Char *SaveChar, *CorrChar;
int matchval; /* from tenematch() */
int nr_history_exp; /* number of (attempted) history expansions */
COMMAND fn;
int curlen = 0;
int newlen;
int idx;
Char *autoexpand;
if (!MapsAreInited) /* double extra just in case */
ed_InitMaps();
ClearDisp(); /* reset the display stuff */
ResetInLine(0); /* reset the input pointers */
if (GettingInput)
MacroLvl = -1; /* editor was interrupted during input */
if (imode && imode->vec != NULL) {
if (!Strcmp(*(imode->vec), STRinsert))
inputmode = MODE_INSERT;
else if (!Strcmp(*(imode->vec), STRoverwrite))
inputmode = MODE_REPLACE;
}
#if defined(FIONREAD) && !defined(OREO)
if (!Tty_raw_mode && MacroLvl < 0) {
# ifdef SUNOS4
long chrs = 0;
# else /* !SUNOS4 */
/*
* *Everyone* else has an int, but SunOS wants long!
* This breaks where int != long (alpha)
*/
int chrs = 0;
# endif /* SUNOS4 */
(void) ioctl(SHIN, FIONREAD, (ioctl_t) & chrs);
if (chrs == 0) {
if (Rawmode() < 0)
return 0;
}
}
#endif /* FIONREAD && !OREO */
GettingInput = 1;
NeedsRedraw = 0;
tellwhat = 0;
if (RestoreSaved) {
copyn(InputBuf, SavedBuf.s, INBUFSIZE);/*FIXBUF*/
LastChar = InputBuf + LastSaved;
Cursor = InputBuf + CursSaved;
Hist_num = HistSaved;
HistSaved = 0;
RestoreSaved = 0;
}
if (HistSaved) {
Hist_num = HistSaved;
GetHistLine();
HistSaved = 0;
}
if (Expand) {
(void) e_up_hist(0);
Expand = 0;
}
Refresh(); /* print the prompt */
for (num = OKCMD; num == OKCMD;) { /* while still editing this line */
#ifdef DEBUG_EDIT
if (Cursor > LastChar)
xprintf("Cursor > LastChar\r\n");
if (Cursor < InputBuf)
xprintf("Cursor < InputBuf\r\n");
if (Cursor > InputLim)
xprintf("Cursor > InputLim\r\n");
if (LastChar > InputLim)
xprintf("LastChar > InputLim\r\n");
if (InputLim != &InputBuf[INBUFSIZE - 2])/*FIXBUF*/
xprintf("InputLim != &InputBuf[INBUFSIZE-2]\r\n");
if ((!DoingArg) && (Argument != 1))
xprintf("(!DoingArg) && (Argument != 1)\r\n");
if (CcKeyMap[0] == 0)
xprintf("CcKeyMap[0] == 0 (maybe not inited)\r\n");
#endif
/* if EOF or error */
if ((num = GetNextCommand(&cmdnum, &ch)) != OKCMD) {
break;
}
if (cmdnum >= NumFuns) {/* BUG CHECK command */
#ifdef DEBUG_EDIT
xprintf(CGETS(6, 1, "ERROR: illegal command from key 0%o\r\n"), ch);
#endif
continue; /* try again */
}
/* now do the real command */
retval = (*CcFuncTbl[cmdnum]) (ch);
/* save the last command here */
LastCmd = cmdnum;
/* make sure fn is initialized */
fn = (retval == CC_COMPLETE_ALL) ? LIST_ALL : LIST;
/* use any return value */
switch (retval) {
case CC_REFRESH:
Refresh();
/*FALLTHROUGH*/
case CC_NORM: /* normal char */
Argument = 1;
DoingArg = 0;
/*FALLTHROUGH*/
case CC_ARGHACK: /* Suggested by Rich Salz */
/* <*****@*****.**> */
curchoice = -1;
curlen = (int) (LastChar - InputBuf);
break; /* keep going... */
case CC_EOF: /* end of file typed */
curchoice = -1;
curlen = (int) (LastChar - InputBuf);
num = 0;
break;
case CC_WHICH: /* tell what this command does */
tellwhat = 1;
*LastChar++ = '\n'; /* for the benifit of CSH */
num = (int) (LastChar - InputBuf); /* number characters read */
break;
case CC_NEWLINE: /* normal end of line */
curlen = 0;
curchoice = -1;
matchval = 1;
if (crct && crct->vec != NULL && (!Strcmp(*(crct->vec), STRcmd) ||
!Strcmp(*(crct->vec), STRall))) {
Char *Origin;
PastBottom();
Origin = Strsave(InputBuf);
cleanup_push(Origin, xfree);
SaveChar = LastChar;
if (SpellLine(!Strcmp(*(crct->vec), STRcmd)) == 1) {
Char *Change;
PastBottom();
Change = Strsave(InputBuf);
cleanup_push(Change, xfree);
*Strchr(Change, '\n') = '\0';
CorrChar = LastChar; /* Save the corrected end */
LastChar = InputBuf; /* Null the current line */
SoundBeep();
printprompt(2, short2str(Change));
cleanup_until(Change);
Refresh();
if (xread(SHIN, &tch, 1) < 0) {
#ifdef convex
/*
* need to print error message in case file
* is migrated
*/
if (errno)
stderror(ERR_SYSTEM, progname, strerror(errno));
#else
cleanup_until(Origin);
break;
#endif
}
ch = tch;
if (ch == 'y' || ch == ' ') {
LastChar = CorrChar; /* Restore the corrected end */
xprintf("%s", CGETS(6, 2, "yes\n"));
}
else {
Strcpy(InputBuf, Origin);
LastChar = SaveChar;
if (ch == 'e') {
xprintf("%s", CGETS(6, 3, "edit\n"));
*LastChar-- = '\0';
Cursor = LastChar;
printprompt(3, NULL);
ClearLines();
ClearDisp();
Refresh();
cleanup_until(Origin);
break;
}
else if (ch == 'a') {
xprintf("%s", CGETS(6, 4, "abort\n"));
LastChar = InputBuf; /* Null the current line */
Cursor = LastChar;
printprompt(0, NULL);
Refresh();
cleanup_until(Origin);
break;
}
xprintf("%s", CGETS(6, 5, "no\n"));
}
flush();
}
cleanup_until(Origin);
} else if (crct && crct->vec != NULL &&
!Strcmp(*(crct->vec), STRcomplete)) {
if (LastChar > InputBuf && LastChar[-1] == '\n') {
LastChar[-1] = '\0';
LastChar--;
Cursor = LastChar;
}
match_unique_match = 1; /* match unique matches */
matchval = CompleteLine();
match_unique_match = 0;
curlen = (int) (LastChar - InputBuf);
if (matchval != 1) {
PastBottom();
}
if (matchval == 0) {
xprintf("%s", CGETS(6, 6, "No matching command\n"));
} else if (matchval == 2) {
xprintf("%s", CGETS(6, 7, "Ambiguous command\n"));
}
if (NeedsRedraw) {
ClearLines();
ClearDisp();
NeedsRedraw = 0;
}
Refresh();
Argument = 1;
DoingArg = 0;
if (matchval == 1) {
PastBottom();
*LastChar++ = '\n';
*LastChar = '\0';
}
curlen = (int) (LastChar - InputBuf);
}
else
PastBottom();
if (matchval == 1) {
tellwhat = 0; /* just in case */
Hist_num = 0; /* for the history commands */
/* return the number of chars read */
num = (int) (LastChar - InputBuf);
/*
* For continuation lines, we set the prompt to prompt 2
*/
printprompt(1, NULL);
}
break;
case CC_CORRECT:
if (tenematch(InputBuf, Cursor - InputBuf, SPELL) < 0)
SoundBeep(); /* Beep = No match/ambiguous */
curlen = Repair();
break;
case CC_CORRECT_L:
if (SpellLine(FALSE) < 0)
SoundBeep(); /* Beep = No match/ambiguous */
curlen = Repair();
break;
case CC_COMPLETE:
case CC_COMPLETE_ALL:
case CC_COMPLETE_FWD:
case CC_COMPLETE_BACK:
switch (retval) {
case CC_COMPLETE:
fn = RECOGNIZE;
curlen = (int) (LastChar - InputBuf);
curchoice = -1;
rotate = 0;
break;
case CC_COMPLETE_ALL:
fn = RECOGNIZE_ALL;
curlen = (int) (LastChar - InputBuf);
curchoice = -1;
rotate = 0;
break;
case CC_COMPLETE_FWD:
fn = RECOGNIZE_SCROLL;
curchoice++;
rotate = 1;
break;
case CC_COMPLETE_BACK:
fn = RECOGNIZE_SCROLL;
curchoice--;
rotate = 1;
break;
default:
abort();
}
if (InputBuf[curlen] && rotate) {
newlen = (int) (LastChar - InputBuf);
for (idx = (int) (Cursor - InputBuf);
idx <= newlen; idx++)
InputBuf[idx - newlen + curlen] =
InputBuf[idx];
LastChar = InputBuf + curlen;
Cursor = Cursor - newlen + curlen;
}
curlen = (int) (LastChar - InputBuf);
nr_history_exp = 0;
autoexpand = varval(STRautoexpand);
if (autoexpand != STRNULL)
nr_history_exp += ExpandHistory();
/* try normal expansion only if no history references were found */
if (nr_history_exp == 0 ||
Strcmp(autoexpand, STRonlyhistory) != 0) {
/*
* Modified by Martin Boyer ([email protected]):
* A separate variable now controls beeping after
* completion, independently of autolisting.
*/
expnum = (int) (Cursor - InputBuf);
switch (matchval = tenematch(InputBuf, Cursor-InputBuf, fn)){
case 1:
if (non_unique_match && matchbeep &&
matchbeep->vec != NULL &&
(Strcmp(*(matchbeep->vec), STRnotunique) == 0))
SoundBeep();
break;
case 0:
if (matchbeep && matchbeep->vec != NULL) {
if (Strcmp(*(matchbeep->vec), STRnomatch) == 0 ||
Strcmp(*(matchbeep->vec), STRambiguous) == 0 ||
Strcmp(*(matchbeep->vec), STRnotunique) == 0)
SoundBeep();
}
else
SoundBeep();
break;
default:
if (matchval < 0) { /* Error from tenematch */
curchoice = -1;
SoundBeep();
break;
}
if (matchbeep && matchbeep->vec != NULL) {
if ((Strcmp(*(matchbeep->vec), STRambiguous) == 0 ||
Strcmp(*(matchbeep->vec), STRnotunique) == 0))
SoundBeep();
}
else
SoundBeep();
/*
* Addition by David C Lawrence <*****@*****.**>: If an
* attempted completion is ambiguous, list the choices.
* (PWP: this is the best feature addition to tcsh I have
* seen in many months.)
*/
if (autol && autol->vec != NULL &&
(Strcmp(*(autol->vec), STRambiguous) != 0 ||
expnum == Cursor - InputBuf)) {
if (adrof(STRhighlight) && MarkIsSet) {
/* clear highlighting before showing completions */
MarkIsSet = 0;
ClearLines();
ClearDisp();
Refresh();
MarkIsSet = 1;
}
PastBottom();
fn = (retval == CC_COMPLETE_ALL) ? LIST_ALL : LIST;
(void) tenematch(InputBuf, Cursor-InputBuf, fn);
}
break;
}
}
if (NeedsRedraw) {
PastBottom();
ClearLines();
ClearDisp();
NeedsRedraw = 0;
}
Refresh();
Argument = 1;
DoingArg = 0;
break;
case CC_LIST_CHOICES:
case CC_LIST_ALL:
if (InputBuf[curlen] && rotate) {
newlen = (int) (LastChar - InputBuf);
for (idx = (int) (Cursor - InputBuf);
idx <= newlen; idx++)
InputBuf[idx - newlen + curlen] =
InputBuf[idx];
LastChar = InputBuf + curlen;
Cursor = Cursor - newlen + curlen;
}
curlen = (int) (LastChar - InputBuf);
if (curchoice >= 0)
curchoice--;
fn = (retval == CC_LIST_ALL) ? LIST_ALL : LIST;
/* should catch ^C here... */
if (tenematch(InputBuf, Cursor - InputBuf, fn) < 0)
SoundBeep();
Refresh();
Argument = 1;
DoingArg = 0;
break;
case CC_LIST_GLOB:
if (tenematch(InputBuf, Cursor - InputBuf, GLOB) < 0)
SoundBeep();
curlen = Repair();
break;
case CC_EXPAND_GLOB:
if (tenematch(InputBuf, Cursor - InputBuf, GLOB_EXPAND) <= 0)
SoundBeep(); /* Beep = No match */
curlen = Repair();
break;
case CC_NORMALIZE_PATH:
if (tenematch(InputBuf, Cursor - InputBuf, PATH_NORMALIZE) <= 0)
SoundBeep(); /* Beep = No match */
curlen = Repair();
break;
case CC_EXPAND_VARS:
if (tenematch(InputBuf, Cursor - InputBuf, VARS_EXPAND) <= 0)
SoundBeep(); /* Beep = No match */
curlen = Repair();
break;
case CC_NORMALIZE_COMMAND:
if (tenematch(InputBuf, Cursor - InputBuf, COMMAND_NORMALIZE) <= 0)
SoundBeep(); /* Beep = No match */
curlen = Repair();
break;
case CC_HELPME:
xputchar('\n');
/* should catch ^C here... */
(void) tenematch(InputBuf, LastChar - InputBuf, PRINT_HELP);
Refresh();
Argument = 1;
DoingArg = 0;
curchoice = -1;
curlen = (int) (LastChar - InputBuf);
break;
case CC_FATAL: /* fatal error, reset to known state */
#ifdef DEBUG_EDIT
xprintf(CGETS(7, 8, "*** editor fatal ERROR ***\r\n\n"));
#endif /* DEBUG_EDIT */
/* put (real) cursor in a known place */
ClearDisp(); /* reset the display stuff */
ResetInLine(1); /* reset the input pointers */
Refresh(); /* print the prompt again */
Argument = 1;
DoingArg = 0;
curchoice = -1;
curlen = (int) (LastChar - InputBuf);
break;
case CC_ERROR:
default: /* functions we don't know about */
if (adrof(STRhighlight)) {
ClearLines();
ClearDisp();
Refresh();
}
DoingArg = 0;
Argument = 1;
SoundBeep();
flush();
curchoice = -1;
curlen = (int) (LastChar - InputBuf);
break;
}
}
(void) Cookedmode(); /* make sure the tty is set up correctly */
GettingInput = 0;
flush(); /* flush any buffered output */
return num;
}
//---------------------------------------------------------------------------
// FetchLine
//
// This function "scans" the next parse-able line into the given buffer,
// along with the file index and line number information that the parser will
// use for error reporting and OP_LINE information.
//
// RETURNS: 1 if line copied, 0 if end of script), or -1 if error.
//---------------------------------------------------------------------------
INT FetchLine (LPSTR szLineBuf, UINT FAR *nFile, UINT FAR *nLine)
{
// This while loop executes until an actual line is copied to the buffer,
// or until we hit the end of the script, or until an error occurs.
//-----------------------------------------------------------------------
while (GetRawLine(szLineBuf) && (!fScanErr))
{
szLine = szLineBuf;
idx = 0;
NextToken();
if ((curtok[0] == '\'') || (!_stricmp (curtok, szREM)))
{
INT type;
// This line is a comment or metacommand. Parse it and find out.
//---------------------------------------------------------------
type = ParseCommentLine ();
switch (type)
{
case MC_DEFINE:
// Add the symbol to the symbol table if CUR_STATE
//-------------------------------------------------------
if (CUR_STATE)
{
NextToken();
if (strchr (szSpecials, *curtok))
ScanError (SCN_SYMEXP);
else if (!AddSymbol (pSymRoot, curtok))
ScanError (SCN_OSS);
// Now make sure the rest of the line is either empty
// or a comment character
//---------------------------------------------------
CompleteLine();
}
break;
case MC_UNDEF:
// Remove the symbol from the symbol table if CUR_STATE
//-------------------------------------------------------
if (CUR_STATE)
{
NextToken();
if (strchr (szSpecials, *curtok))
ScanError (SCN_SYMEXP);
else
RemoveSymbol (pSymRoot, curtok);
// Now make sure the rest of the line is either empty
// or a comment character
//---------------------------------------------------
CompleteLine();
}
break;
case MC_IFDEF:
case MC_IFNDEF:
{
BOOL truth;
// Evaluate the symbol expression
//-------------------------------------------------------
truth = SymbolExpression();
if (type == MC_IFNDEF)
truth = !truth;
// Act accordingly
//-------------------------------------------------------
if (truth)
truth = PushState (CUR_STATE, 0, CUR_STATE);
else
truth = PushState (0, 0, 0);
if (!truth)
ScanError (SCN_TOODEEP);
break;
}
case MC_ELSEIFDEF:
case MC_ELSEIFNDEF:
// Check to see if we've seen an ELSE or are in an IF
// block at all. Given an error if appropriate
//-------------------------------------------------------
if ((CUR_ELSESEEN) || (CUR_FILE.pIfStack == pIfStack))
ScanError (SCN_UNXPELSE);
else
{
BOOL truth;
// Evaluate the symbol expression
//---------------------------------------------------
truth = SymbolExpression();
if (type == MC_ELSEIFNDEF)
truth = !truth;
// Act as appropriate
//---------------------------------------------------
if (truth)
{
if (CUR_BLKCOPIED)
CUR_STATE = 0;
else
CUR_STATE = CUR_BLKCOPIED = LAST_STATE;
}
else
CUR_STATE = 0;
}
break;
case MC_ELSE:
if ((CUR_ELSESEEN) || (CUR_FILE.pIfStack == pIfStack))
ScanError (SCN_UNXPELSE);
else
{
CUR_STATE = (CUR_STATE ^ LAST_STATE)
& (!CUR_BLKCOPIED);
CUR_ELSESEEN = 1;
// Now make sure the rest of the line is either empty
// or a comment character
//---------------------------------------------------
//CompleteLine();
}
break;
case MC_ENDIF:
if (CUR_FILE.pIfStack == pIfStack)
ScanError (SCN_UNXPENDIF);
else
{
PopState ();
// Now make sure the rest of the line is either empty
// or a comment character
//---------------------------------------------------
//CompleteLine();
}
break;
case MC_INCLUDE:
if (CUR_STATE)
LoadIncludeFile();
break;
}
}
else if (CUR_STATE && curtok[0])
{
// This was not a comment, and we're not yanking this block, so
// fill in the other data items and return this line.
//---------------------------------------------------------------
*nFile = nFileIdx;
*nLine = CUR_FILE.nLineNo;
return (1);
}
}
// The only way out of the loop above is if we're at the end of the
// script, or an error occurred. Either way, this is it for the scan/
// parse process, so clean up before we return to the parser. First,
// if there's more than one node on the IFREC stack, we didn't get an
// ENDIF somewhere...
//-----------------------------------------------------------------------
if (pIfStack->next)
ScanError (SCN_ENDIFEXP);
// Get rid of the DEFINE table and last of the IFDEF stack
//-----------------------------------------------------------------------
FreeSymbolTree (pSymRoot);
pSymRoot = NULL;
FreeIfStack ();
// Make sure the callback loader gets a chance to "unload" everything.
// The lpFI table gets freed later -- after the basic engine returns.
//-----------------------------------------------------------------------
UnloadAllFiles ();
// Zero-terminate the line buffer, and return 0 if no error.
//-----------------------------------------------------------------------
szLineBuf[0] = 0;
return (fScanErr ? -1 : 0);
}