static int
lc_cmp(const char *s1, const char *s2)
{
char c1, c2;
while (*s1 && *s2) {
if (xisupper(*s1))
c1 = xtolower(*s1);
else
c1 = *s1;
if (xisupper(*s2))
c2 = xtolower(*s2);
else
c2 = *s2;
if (c1 != c2)
return ((c1 - c2) > 0 ? 1 : -1);
s1++;
s2++;
}
if (*s1)
return -1;
if (*s2)
return 1;
return 0;
}
void
#line 87 "./cwebdir/comm-w2c.ch"
prime_the_change_buffer P1H(void)
#line 254 "./cwebdir/common.w"
{
change_limit= change_buffer;
/*13:*/
#line 265 "./cwebdir/common.w"
while(1){
change_line++;
if(!input_ln(change_file))return;
if(limit<buffer+2)continue;
if(buffer[0]!='@')continue;
if(xisupper(buffer[1]))buffer[1]= tolower(buffer[1]);
if(buffer[1]=='x')break;
if(buffer[1]=='y'||buffer[1]=='z'||buffer[1]=='i'){
loc= buffer+2;
err_print("! Missing @x in change file");
}
}
/*:13*/
#line 256 "./cwebdir/common.w"
;
/*14:*/
#line 282 "./cwebdir/common.w"
do{
change_line++;
if(!input_ln(change_file)){
err_print("! Change file ended after @x");
return;
}
}while(limit==buffer);
/*:14*/
#line 257 "./cwebdir/common.w"
;
/*15:*/
#line 292 "./cwebdir/common.w"
{
change_limit= change_buffer+(limit-buffer);
strncpy(change_buffer,buffer,limit-buffer+1);
}
/*:15*/
#line 258 "./cwebdir/common.w"
;
}
void init_change_file P1C(file_index,i)
#line 811 "./ctie.w"
{
register input_description*inp_desc= input_organisation[i];
char ccode;
inp_desc->limit= inp_desc->buffer;
/*46:*/
#line 827 "./ctie.w"
while(1){
if(!get_line(i,false))return;
if(inp_desc->limit<inp_desc->buffer+2)continue;
if(inp_desc->buffer[0]!='@')continue;
ccode= inp_desc->buffer[1];
if(xisupper(ccode))ccode= tolower(ccode);
if(ccode=='x')break;
if(ccode=='y'||ccode=='z'||ccode=='i'){
inp_desc->loc= inp_desc->buffer+2;
err_print(i,"! Missing @x in change file");
}
}
/*:46*/
#line 816 "./ctie.w"
/*47:*/
#line 844 "./ctie.w"
do{
if(!get_line(i,true)){
err_print(i,"! Change file ended after @x");
return;
}
}while(inp_desc->limit==inp_desc->buffer);
/*:47*/
#line 817 "./ctie.w"
inp_desc->dont_match= 0;
}
int get_line P1H(void)
#line 428 "./cwebdir/common.w"
{
restart:
if(changing&&include_depth==change_depth)
/*27:*/
#line 537 "./cwebdir/common.w"
{
change_line++;
if(!input_ln(change_file)){
err_print("! Change file ended without @z");
buffer[0]= '@';buffer[1]= 'z';limit= buffer+2;
}
if(limit> buffer){
if(change_pending){
if_section_start_make_pending(0);
if(change_pending){
changed_section[section_count]= 1;change_pending= 0;
}
}
*limit= ' ';
if(buffer[0]=='@'){
if(xisupper(buffer[1]))buffer[1]= tolower(buffer[1]);
if(buffer[1]=='x'||buffer[1]=='y'){
loc= buffer+2;
err_print("! Where is the matching @z?");
}
else if(buffer[1]=='z'){
prime_the_change_buffer();changing= !changing;print_where= 1;
}
}
}
}
/*:27*/
#line 431 "./cwebdir/common.w"
;
if(!changing||include_depth> change_depth){
/*26:*/
#line 520 "./cwebdir/common.w"
{
cur_line++;
while(!input_ln(cur_file)){
print_where= 1;
if(include_depth==0){input_has_ended= 1;break;}
else{
fclose(cur_file);include_depth--;
if(changing&&include_depth==change_depth)break;
cur_line++;
}
}
if(!changing&&!input_has_ended)
if(limit-buffer==change_limit-change_buffer)
if(buffer[0]==change_buffer[0])
if(change_limit> change_buffer)check_change();
}
/*:26*/
#line 433 "./cwebdir/common.w"
;
if(changing&&include_depth==change_depth)goto restart;
}
if(input_has_ended)return 0;
loc= buffer;*limit= ' ';
if(buffer[0]=='@'&&(buffer[1]=='i'||buffer[1]=='I')){
loc= buffer+2;*limit= '"';
while(*loc==' '||*loc=='\t')loc++;
if(loc>=limit){
err_print("! Include file name not given");
goto restart;
}
if(include_depth>=max_include_depth-1){
err_print("! Too many nested includes");
goto restart;
}
include_depth++;
/*25:*/
#line 474 "./cwebdir/common.w"
{
#line 200 "./cwebdir/comm-w2c.ch"
char*cur_file_name_end= cur_file_name+max_file_name_length-1;
char*k= cur_file_name;
#line 479 "./cwebdir/common.w"
if(*loc=='"'){
loc++;
while(*loc!='"'&&k<=cur_file_name_end)*k++= *loc++;
if(loc==limit)k= cur_file_name_end+1;
}else
while(*loc!=' '&&*loc!='\t'&&*loc!='"'&&k<=cur_file_name_end)*k++= *loc++;
if(k> cur_file_name_end)too_long();
*k= '\0';
#line 207 "./cwebdir/comm-w2c.ch"
if((found_filename= kpse_find_cweb(cur_file_name))!=NULL&&
(cur_file= fopen(found_filename,"r"))!=NULL){
if(strlen(found_filename)<max_file_name_length){
strcpy(cur_file_name,found_filename);
free(found_filename);
}
#line 490 "./cwebdir/common.w"
cur_line= 0;print_where= 1;
goto restart;
}
#line 517 "./cwebdir/common.w"
include_depth--;err_print("! Cannot open include file");goto restart;
}
/*:25*/
#line 452 "./cwebdir/common.w"
;
}
return 1;
}
void
#line 95 "./cwebdir/comm-w2c.ch"
check_change P1H(void)
#line 323 "./cwebdir/common.w"
{
int n= 0;
if(lines_dont_match)return;
change_pending= 0;
if(!changed_section[section_count]){
if_section_start_make_pending(1);
if(!change_pending)changed_section[section_count]= 1;
}
while(1){
changing= 1;print_where= 1;change_line++;
if(!input_ln(change_file)){
err_print("! Change file ended before @y");
change_limit= change_buffer;changing= 0;
return;
}
if(limit> buffer+1&&buffer[0]=='@'){
char xyz_code= xisupper(buffer[1])?tolower(buffer[1]):buffer[1];
/*17:*/
#line 358 "./cwebdir/common.w"
if(xyz_code=='x'||xyz_code=='z'){
loc= buffer+2;err_print("! Where is the matching @y?");
}
else if(xyz_code=='y'){
if(n> 0){
loc= buffer+2;
printf("\n! Hmm... %d ",n);
err_print("of the preceding lines failed to match");
}
change_depth= include_depth;
return;
}
/*:17*/
#line 342 "./cwebdir/common.w"
;
}
/*15:*/
#line 292 "./cwebdir/common.w"
{
change_limit= change_buffer+(limit-buffer);
strncpy(change_buffer,buffer,limit-buffer+1);
}
/*:15*/
#line 344 "./cwebdir/common.w"
;
changing= 0;cur_line++;
while(!input_ln(cur_file)){
if(include_depth==0){
err_print("! CWEB file ended during a change");
input_has_ended= 1;return;
}
include_depth--;cur_line++;
}
if(lines_dont_match)n++;
}
}
/*
* Convert a string to a int64 integer.
*
* Ignores `locale' stuff. Assumes that the upper and lower case
* alphabets and digits are each contiguous.
*/
int64_t
strtoll (const char *nptr, char **endptr, int base)
{
register const char *s = nptr;
register u_int64_t acc;
register int c;
register u_int64_t cutoff;
register int neg = 0, any, cutlim;
/*
* Skip white space and pick up leading +/- sign if any.
* If base is 0, allow 0x for hex and 0 for octal, else
* assume decimal; if base is already 16, allow 0x.
*/
do {
c = *s++;
} while (xisspace(c));
if (c == '-') {
neg = 1;
c = *s++;
} else if (c == '+')
c = *s++;
if ((base == 0 || base == 16) && c == '0' && (*s == 'x' || *s == 'X')) {
c = s[1];
s += 2;
base = 16;
}
if (base == 0)
base = c == '0' ? 8 : 10;
/*
* Compute the cutoff value between legal numbers and illegal
* numbers. That is the largest legal value, divided by the
* base. An input number that is greater than this value, if
* followed by a legal input character, is too big. One that
* is equal to this value may be valid or not; the limit
* between valid and invalid numbers is then based on the last
* digit. For instance, if the range for longs is
* [-2147483648..2147483647] and the input base is 10,
* cutoff will be set to 214748364 and cutlim to either
* 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
* a value > 214748364, or equal but the next digit is > 7 (or 8),
* the number is too big, and we will return a range error.
*
* Set any if any `digits' consumed; make it negative to indicate
* overflow.
*/
cutoff = neg ? -(u_int64_t) INT64_MIN : INT64_MAX;
cutlim = cutoff % (u_int64_t) base;
cutoff /= (u_int64_t) base;
for (acc = 0, any = 0;; c = *s++) {
if (xisdigit(c))
c -= '0';
else if (xisalpha(c))
c -= xisupper(c) ? 'A' - 10 : 'a' - 10;
else
break;
if (c >= base)
break;
if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
any = -1;
else {
any = 1;
acc *= base;
acc += c;
}
}
if (any < 0) {
acc = neg ? INT64_MIN : INT64_MAX;
errno = ERANGE;
} else if (neg)
acc = -acc;
if (endptr != 0)
*endptr = (char *) (any ? s - 1 : nptr);
return acc;
}
/*
* Format c for printing. Handle funnies of upper case terminals
* and crocky hazeltines which don't have ~.
*/
int
normchar(register int c)
{
int u;
#ifdef UCVISUAL
register char *colp;
if (c == '~' && xHZ) {
normchar('\\');
c = '^';
}
#endif
if (c & MULTICOL) {
c &= ~MULTICOL;
if (c == 0)
return MULTICOL;
}
c &= (TRIM|QUOTE);
u = c & TRIM;
if (c & QUOTE) {
if (c == (' ' | QUOTE) || c == ('\b' | QUOTE))
/*EMPTY*/;
else if (c == QUOTE)
return c;
else
c &= TRIM;
}
#ifdef BIT8
else {
if (!printable(c) && (u != '\b' || !OS) &&
u != '\n' && u != '\t')
c = printof(u);
else {
c = u;
if (0)
/*EMPTY*/;
#else /* !BIT8 */
else if (c < ' ' && (c != '\b' || !OS) && c != '\n' && c != '\t')
putchar('^'), c = ctlof(c);
#endif /* !BIT8 */
#ifdef UCVISUAL
else if (UPPERCASE)
if (xisupper(c)) {
outchar('\\');
c = tolower(c);
} else {
colp = "({)}!|^~'`";
while (*colp++)
if (c == *colp++) {
outchar('\\');
c = colp[-2];
break;
}
}
#endif /* UCVISUAL */
#ifdef BIT8
}
}
#endif
outchar(c);
return c;
}
/*
* Decode an operator/operand type command.
* Eventually we switch to an operator subroutine in ex_vops.c.
* The work here is setting up a function variable to point
* to the routine we want, and manipulation of the variables
* wcursor and wdot, which mark the other end of the affected
* area. If wdot is zero, then the current line is the other end,
* and if wcursor is zero, then the first non-blank location of the
* other line is implied.
*/
void
operate(register int c, register int cnt)
{
register int i = 0;
void (*moveop)(int), (*deleteop)(int);
void (*opf)(int);
bool subop = 0;
char *oglobp, *ocurs;
register line *addr;
line *odot;
static int lastFKND, lastFCHR;
short d;
cell nullcell[1], qmarkcell[2], slashcell[2];
CLOBBGRD(opf);
CLOBBGRD(d);
qmarkcell[0] = '?';
slashcell[0] = '/';
nullcell[0] = qmarkcell[1] = slashcell[1] = 0;
moveop = vmove, deleteop = vdelete;
wcursor = cursor;
wdot = NOLINE;
notecnt = 0;
dir = 1;
switch (c) {
/*
* d delete operator.
*/
case 'd':
moveop = vdelete;
deleteop = (void (*)(int))beep;
break;
/*
* s substitute characters, like c\040, i.e. change space.
*/
case 's':
ungetkey(' ');
subop++;
/* fall into ... */
/*
* c Change operator.
*/
case 'c':
if (c == 'c' && workcmd[0] == 'C' || workcmd[0] == 'S')
subop++;
moveop = vchange;
deleteop = (void (*)(int))beep;
break;
/*
* ! Filter through a UNIX command.
*/
case '!':
moveop = vfilter;
deleteop = (void (*)(int))beep;
break;
/*
* y Yank operator. Place specified text so that it
* can be put back with p/P. Also yanks to named buffers.
*/
case 'y':
moveop = vyankit;
deleteop = (void (*)(int))beep;
break;
/*
* = Reformat operator (for LISP).
*/
#ifdef LISPCODE
case '=':
forbid(!value(LISP));
/* fall into ... */
#endif
/*
* > Right shift operator.
* < Left shift operator.
*/
case '<':
case '>':
moveop = vshftop;
deleteop = (void (*)(int))beep;
break;
/*
* r Replace character under cursor with single following
* character.
*/
case 'r':
vmacchng(1);
vrep(cnt);
return;
default:
goto nocount;
}
vmacchng(1);
/*
* Had an operator, so accept another count.
* Multiply counts together.
*/
if (xisdigit(peekkey()) && peekkey() != '0') {
cnt *= vgetcnt();
Xcnt = cnt;
forbid (cnt <= 0);
}
/*
* Get next character, mapping it and saving as
* part of command for repeat.
*/
c = map(getesc(),arrows);
if (c == 0)
return;
if (!subop)
*lastcp++ = c;
nocount:
opf = moveop;
switch (c) {
/*
* b Back up a word.
* B Back up a word, liberal definition.
*/
case 'b':
case 'B':
dir = -1;
/* fall into ... */
/*
* w Forward a word.
* W Forward a word, liberal definition.
*/
case 'W':
case 'w':
wdkind = c & ' ';
forbid(llfind(2, cnt, opf, 0) < 0);
vmoving = 0;
break;
/*
* E to end of following blank/nonblank word
*/
case 'E':
wdkind = 0;
goto ein;
/*
* e To end of following word.
*/
case 'e':
wdkind = 1;
ein:
forbid(llfind(3, cnt - 1, opf, 0) < 0);
vmoving = 0;
break;
/*
* ( Back an s-expression.
*/
case '(':
dir = -1;
/* fall into... */
/*
* ) Forward an s-expression.
*/
case ')':
forbid(llfind(0, cnt, opf, (line *) 0) < 0);
markDOT();
break;
/*
* { Back an s-expression, but don't stop on atoms.
* In text mode, a paragraph. For C, a balanced set
* of {}'s.
*/
case '{':
dir = -1;
/* fall into... */
/*
* } Forward an s-expression, but don't stop on atoms.
* In text mode, back paragraph. For C, back a balanced
* set of {}'s.
*/
case '}':
forbid(llfind(1, cnt, opf, (line *) 0) < 0);
markDOT();
break;
/*
* % To matching () or {}. If not at ( or { scan for
* first such after cursor on this line.
*/
case '%':
vsave();
i = lmatchp((line *) 0);
#ifdef TRACE
if (trace)
fprintf(trace, "after lmatchp in %, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
getDOT();
forbid(!i);
if (opf != vmove)
if (dir > 0)
wcursor += skipright(linebuf, wcursor);
else
cursor += skipright(linebuf, cursor);
else
markDOT();
vmoving = 0;
break;
/*
* [ Back to beginning of defun, i.e. an ( in column 1.
* For text, back to a section macro.
* For C, back to a { in column 1 (~~ beg of function.)
*/
case '[':
dir = -1;
/* fall into ... */
/*
* ] Forward to next defun, i.e. a ( in column 1.
* For text, forward section.
* For C, forward to a } in column 1 (if delete or such)
* or if a move to a { in column 1.
*/
case ']':
if (!vglobp)
forbid(getkey() != c);
forbid (Xhadcnt);
vsave();
i = lbrack(c, opf);
getDOT();
forbid(!i);
markDOT();
if (ospeed > B300)
hold |= HOLDWIG;
break;
/*
* , Invert last find with f F t or T, like inverse
* of ;.
*/
case ',':
forbid (lastFKND == 0);
c = xisupper(lastFKND&TRIM)
? xtolower(lastFKND&TRIM) : xtoupper(lastFKND&TRIM);
i = lastFCHR;
if (vglobp == 0)
vglobp = nullcell;
subop++;
goto nocount;
/*
* 0 To beginning of real line.
*/
case '0':
wcursor = linebuf;
vmoving = 0;
break;
/*
* ; Repeat last find with f F t or T.
*/
case ';':
forbid (lastFKND == 0);
c = lastFKND;
i = lastFCHR;
subop++;
goto nocount;
/*
* F Find single character before cursor in current line.
* T Like F, but stops before character.
*/
case 'F': /* inverted find */
case 'T':
dir = -1;
/* fall into ... */
/*
* f Find single character following cursor in current line.
* t Like f, but stope before character.
*/
case 'f': /* find */
case 't':
if (!subop) {
i = getesc();
if (i == 0)
return;
*lastcp++ = i;
}
if (vglobp == 0)
lastFKND = c, lastFCHR = i;
for (; cnt > 0; cnt--)
forbid (find(i) == 0);
vmoving = 0;
switch (c) {
case 'T':
wcursor += skipright(linebuf, wcursor);
break;
case 't':
wcursor += skipleft(linebuf, wcursor);
case 'f':
fixup:
if (moveop != vmove)
wcursor += skipright(linebuf, wcursor);
break;
}
break;
/*
* | Find specified print column in current line.
*/
case '|':
if (Pline == numbline)
cnt += 8;
vmovcol = cnt;
vmoving = 1;
wcursor = vfindcol(cnt);
break;
/*
* ^ To beginning of non-white space on line.
*/
case '^':
wcursor = vskipwh(linebuf);
vmoving = 0;
break;
/*
* $ To end of line.
*/
case '$':
if (opf == vmove) {
vmoving = 1;
vmovcol = 20000;
} else
vmoving = 0;
if (cnt > 1) {
if (opf == vmove) {
wcursor = 0;
cnt--;
} else
wcursor = linebuf;
/* This is wrong at EOF */
wdot = dot + cnt;
break;
}
if (linebuf[0]) {
wcursor = strend(linebuf) - 1;
goto fixup;
}
wcursor = linebuf;
break;
/*
* h Back a character.
* ^H Back a character.
*/
case 'h':
case CTRL('h'):
dir = -1;
/* fall into ... */
/*
* space Forward a character.
*/
case 'l':
case ' ':
forbid (margin() || opf == vmove && edge());
while (cnt > 0 && !margin()) {
wcursor += dir>0 ? skipright(linebuf, wcursor) :
skipleft(linebuf, wcursor);
cnt--;
}
if (margin() && opf == vmove || wcursor < linebuf)
wcursor -= dir;
vmoving = 0;
break;
/*
* D Delete to end of line, short for d$.
*/
case 'D':
cnt = INF;
goto deleteit;
/*
* X Delete character before cursor.
*/
case 'X':
dir = -1;
/* fall into ... */
deleteit:
/*
* x Delete character at cursor, leaving cursor where it is.
*/
case 'x':
if (margin())
goto errlab;
vmacchng(1);
while (cnt > 0 && !margin()) {
wcursor += dir > 0 ? skipright(linebuf, wcursor) :
skipleft(linebuf, wcursor);
cnt--;
}
opf = deleteop;
vmoving = 0;
break;
default:
/*
* Stuttered operators are equivalent to the operator on
* a line, thus turn dd into d_.
*/
if (opf == vmove || c != workcmd[0]) {
errlab:
beep();
vmacp = 0;
return;
}
/* fall into ... */
/*
* _ Target for a line or group of lines.
* Stuttering is more convenient; this is mostly
* for aesthetics.
*/
case '_':
wdot = dot + cnt - 1;
vmoving = 0;
wcursor = 0;
break;
/*
* H To first, home line on screen.
* Count is for count'th line rather than first.
*/
case 'H':
wdot = (dot - vcline) + cnt - 1;
if (opf == vmove)
markit(wdot);
vmoving = 0;
wcursor = 0;
break;
/*
* - Backwards lines, to first non-white character.
*/
case '-':
wdot = dot - cnt;
vmoving = 0;
wcursor = 0;
break;
/*
* ^P To previous line same column. Ridiculous on the
* console of the VAX since it puts console in LSI mode.
*/
case 'k':
case CTRL('p'):
wdot = dot - cnt;
if (vmoving == 0)
vmoving = 1, vmovcol = lcolumn(cursor);
wcursor = 0;
break;
/*
* L To last line on screen, or count'th line from the
* bottom.
*/
case 'L':
wdot = dot + vcnt - vcline - cnt;
if (opf == vmove)
markit(wdot);
vmoving = 0;
wcursor = 0;
break;
/*
* M To the middle of the screen.
*/
case 'M':
wdot = dot + ((vcnt + 1) / 2) - vcline - 1;
if (opf == vmove)
markit(wdot);
vmoving = 0;
wcursor = 0;
break;
/*
* + Forward line, to first non-white.
*
* CR Convenient synonym for +.
*/
case '+':
case CR:
wdot = dot + cnt;
vmoving = 0;
wcursor = 0;
break;
/*
* ^N To next line, same column if possible.
*
* LF Linefeed is a convenient synonym for ^N.
*/
case CTRL('n'):
case 'j':
case NL:
wdot = dot + cnt;
if (vmoving == 0)
vmoving = 1, vmovcol = lcolumn(cursor);
wcursor = 0;
break;
/*
* n Search to next match of current pattern.
*/
case 'n':
vglobp = vscandir;
c = *vglobp++;
goto nocount;
/*
* N Like n but in reverse direction.
*/
case 'N':
vglobp = vscandir[0] == '/' ? qmarkcell : slashcell;
c = *vglobp++;
goto nocount;
/*
* ' Return to line specified by following mark,
* first white position on line.
*
* ` Return to marked line at remembered column.
*/
case '\'':
case '`':
d = c;
c = getesc();
if (c == 0)
return;
c = markreg(c);
forbid (c == 0);
wdot = getmark(c);
forbid (wdot == NOLINE);
forbid (Xhadcnt);
vmoving = 0;
wcursor = d == '`' ? ncols[c - 'a'] : 0;
if (opf == vmove && (wdot != dot || (d == '`' && wcursor != cursor)))
markDOT();
if (wcursor) {
vsave();
getline(*wdot);
if (wcursor > strend(linebuf))
wcursor = 0;
getDOT();
}
if (ospeed > B300)
hold |= HOLDWIG;
break;
/*
* G Goto count'th line, or last line if no count
* given.
*/
case 'G':
if (!Xhadcnt)
cnt = lineDOL();
wdot = zero + cnt;
forbid (wdot < one || wdot > dol);
if (opf == vmove)
markit(wdot);
vmoving = 0;
wcursor = 0;
break;
/*
* / Scan forward for following re.
* ? Scan backward for following re.
*/
case '/':
case '?':
forbid (Xhadcnt);
vsave();
ocurs = cursor;
odot = dot;
wcursor = 0;
if (readecho(c))
return;
if (!vglobp)
vscandir[0] = genbuf[0];
oglobp = globp;
CP(vutmp, genbuf);
globp = vutmp;
d = peekc;
fromsemi:
ungetchar(0);
fixech();
CATCH
addr = address(cursor);
ONERR
slerr:
globp = oglobp;
dot = odot;
cursor = ocurs;
ungetchar(d);
splitw = 0;
vclean();
vjumpto(dot, ocurs, 0);
return;
ENDCATCH
if (globp == 0)
globp = "";
else if (peekc)
--globp;
if (*globp == ';') {
/* /foo/;/bar/ */
globp++;
dot = addr;
cursor = loc1;
goto fromsemi;
}
dot = odot;
ungetchar(d);
c = 0;
if (*globp == 'z')
globp++, c = '\n';
if (any(*globp, "^+-."))
c = *globp++;
i = 0;
while (xisdigit(*globp&TRIM))
i = i * 10 + *globp++ - '0';
if (any(*globp, "^+-."))
c = *globp++;
if (*globp) {
/* random junk after the pattern */
beep();
goto slerr;
}
globp = oglobp;
splitw = 0;
vmoving = 0;
wcursor = loc1;
if (i != 0)
vsetsiz(i);
if (opf == vmove) {
if (state == ONEOPEN || state == HARDOPEN)
outline = destline = WBOT;
if (addr != dot || loc1 != cursor)
markDOT();
if (loc1 > linebuf && *loc1 == 0)
loc1--;
if (c)
vjumpto(addr, loc1, c);
else {
vmoving = 0;
if (loc1) {
vmoving++;
vmovcol = column(loc1);
}
getDOT();
if (state == CRTOPEN && addr != dot)
vup1();
vupdown(addr - dot, NOSTR);
}
return;
}
lastcp[-1] = 'n';
getDOT();
wdot = addr;
break;
}
/*
* Apply.
*/
if (vreg && wdot == 0)
wdot = dot;
(*opf)(c);
wdot = NOLINE;
}
void
vmain(void)
{
int c, cnt, i;
cell esave[TUBECOLS];
char *oglobp;
short d;
line *addr;
int ind, nlput;
int shouldpo = 0;
int onumber = 0, olist = 0;
void (*OPline)(int) = NULL;
int (*OPutchar)(int) = NULL;
CLOBBGRD(c);
CLOBBGRD(cnt);
CLOBBGRD(i);
CLOBBGRD(oglobp);
CLOBBGRD(addr);
CLOBBGRD(shouldpo);
CLOBBGRD(onumber);
CLOBBGRD(olist);
CLOBBGRD(OPline);
CLOBBGRD(OPutchar);
vch_mac = VC_NOTINMAC;
/*
* If we started as a vi command (on the command line)
* then go process initial commands (recover, next or tag).
*/
if (initev) {
oglobp = globp;
globp = initev;
hadcnt = cnt = 0;
i = tchng;
addr = dot;
goto doinit;
}
/*
* NB:
*
* The current line is always in the line buffer linebuf,
* and the cursor at the position cursor. You should do
* a vsave() before moving off the line to make sure the disk
* copy is updated if it has changed, and a getDOT() to get
* the line back if you mung linebuf. The motion
* routines in ex_vwind.c handle most of this.
*/
for (;;) {
/*
* Decode a visual command.
* First sync the temp file if there has been a reasonable
* amount of change. Clear state for decoding of next
* command.
*/
TSYNC();
vglobp = 0;
vreg = 0;
hold = 0;
seenprompt = 1;
wcursor = 0;
Xhadcnt = hadcnt = 0;
Xcnt = cnt = 1;
splitw = 0;
if (i = holdupd) {
if (state == VISUAL)
ignore(peekkey());
holdupd = 0;
/*
if (LINE(0) < ZERO) {
vclear();
vcnt = 0;
i = 3;
}
*/
if (state != VISUAL) {
vcnt = 0;
vsave();
vrepaint(cursor);
} else if (i == 3)
vredraw(WTOP);
else
vsync(WTOP);
vfixcurs();
}
/*
* Gobble up counts and named buffer specifications.
*/
for (;;) {
looptop:
#ifdef MDEBUG
if (trace)
fprintf(trace, "pc=%c",peekkey());
#endif
if (xisdigit(peekkey()) && peekkey() != '0') {
hadcnt = 1;
cnt = vgetcnt();
forbid (cnt <= 0);
}
if (peekkey() != '"')
break;
ignore(getkey()), c = getkey();
/*
* Buffer names be letters or digits.
* But not '0' as that is the source of
* an 'empty' named buffer spec in the routine
* kshift (see ex_temp.c).
*/
forbid (c == '0' || !xisalpha(c) && !xisdigit(c));
vreg = c;
}
reread:
/*
* Come to reread from below after some macro expansions.
* The call to map allows use of function key pads
* by performing a terminal dependent mapping of inputs.
*/
#ifdef MDEBUG
if (trace)
fprintf(trace,"pcb=%c,",peekkey());
#endif
op = getkey();
maphopcnt = 0;
do {
/*
* Keep mapping the char as long as it changes.
* This allows for double mappings, e.g., q to #,
* #1 to something else.
*/
c = op;
op = map(c,arrows);
#ifdef MDEBUG
if (trace)
fprintf(trace,"pca=%c,",c);
#endif
/*
* Maybe the mapped to char is a count. If so, we have
* to go back to the "for" to interpret it. Likewise
* for a buffer name.
*/
if ((xisdigit(c) && c!='0') || c == '"') {
ungetkey(c);
goto looptop;
}
if (!value(REMAP)) {
c = op;
break;
}
if (++maphopcnt > 256)
error(catgets(catd, 1, 225,
"Infinite macro loop"));
} while (c != op);
/*
* Begin to build an image of this command for possible
* later repeat in the buffer workcmd. It will be copied
* to lastcmd by the routine setLAST
* if/when completely specified.
*/
lastcp = workcmd;
if (!vglobp)
*lastcp++ = c;
/*
* First level command decode.
*/
if (c == ATTN)
goto case_ATTN;
switch (c) {
/*
* ^L Clear screen e.g. after transmission error.
*/
/*
* ^R Retype screen, getting rid of @ lines.
* If in open, equivalent to ^L.
* On terminals where the right arrow key sends
* ^L we make ^R act like ^L, since there is no
* way to get ^L. These terminals (adm31, tvi)
* are intelligent so ^R is useless. Soroc
* will probably foul this up, but nobody has
* one of them.
*/
case CTRL('l'):
case CTRL('r'):
if (c == CTRL('l') || (KR && *KR==CTRL('l'))) {
vclear();
vdirty(0, vcnt);
}
if (state != VISUAL) {
/*
* Get a clean line, throw away the
* memory of what is displayed now,
* and move back onto the current line.
*/
vclean();
vcnt = 0;
vmoveto(dot, cursor, 0);
continue;
}
vredraw(WTOP);
/*
* Weird glitch -- when we enter visual
* in a very small window we may end up with
* no lines on the screen because the line
* at the top is too long. This forces the screen
* to be expanded to make room for it (after
* we have printed @'s ick showing we goofed).
*/
if (vcnt == 0)
vrepaint(cursor);
vfixcurs();
continue;
/*
* $ Escape just cancels the current command
* with a little feedback.
*/
case ESCAPE:
beep();
continue;
/*
* @ Macros. Bring in the macro and put it
* in vmacbuf, point vglobp there and punt.
*/
case '@':
c = getesc();
if (c == 0)
continue;
if (c == '@')
c = lastmac;
if (xisupper(c))
c = xtolower(c);
forbid(!xislower(c));
lastmac = c;
vsave();
CATCH
char tmpbuf[BUFSIZ];
regbuf(c,tmpbuf,sizeof(vmacbuf));
macpush(tmpbuf, 1);
ONERR
lastmac = 0;
splitw = 0;
getDOT();
vrepaint(cursor);
continue;
ENDCATCH
vmacp = vmacbuf;
goto reread;
/*
* . Repeat the last (modifying) open/visual command.
*/
case '.':
/*
* Check that there was a last command, and
* take its count and named buffer unless they
* were given anew. Special case if last command
* referenced a numeric named buffer -- increment
* the number and go to a named buffer again.
* This allows a sequence like "1pu.u.u...
* to successively look for stuff in the kill chain
* much as one does in EMACS with C-Y and M-Y.
*/
forbid (lastcmd[0] == 0);
if (hadcnt)
lastcnt = cnt;
if (vreg)
lastreg = vreg;
else if (xisdigit(lastreg) && lastreg < '9')
lastreg++;
vreg = lastreg;
cnt = lastcnt;
hadcnt = lasthad;
vglobp = lastcmd;
goto reread;
/*
* ^U Scroll up. A count sticks around for
* future scrolls as the scroll amount.
* Attempt to hold the indentation from the
* top of the screen (in logical lines).
*
* BUG: A ^U near the bottom of the screen
* on a dumb terminal (which can't roll back)
* causes the screen to be cleared and then
* redrawn almost as it was. In this case
* one should simply move the cursor.
*/
case CTRL('u'):
if (hadcnt)
vSCROLL = cnt;
cnt = vSCROLL;
if (state == VISUAL)
ind = vcline, cnt += ind;
else
ind = 0;
vmoving = 0;
vup(cnt, ind, 1);
vnline(NOSTR);
continue;
/*
* ^D Scroll down. Like scroll up.
*/
case CTRL('d'):
#ifdef TRACE
if (trace)
fprintf(trace, "before vdown in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
if (hadcnt)
vSCROLL = cnt;
cnt = vSCROLL;
if (state == VISUAL)
ind = vcnt - vcline - 1, cnt += ind;
else
ind = 0;
vmoving = 0;
vdown(cnt, ind, 1);
#ifdef TRACE
if (trace)
fprintf(trace, "before vnline in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
vnline(NOSTR);
#ifdef TRACE
if (trace)
fprintf(trace, "after vnline in ^D, dot=%d, wdot=%d, dol=%d\n", lineno(dot), lineno(wdot), lineno(dol));
#endif
continue;
/*
* ^E Glitch the screen down (one) line.
* Cursor left on same line in file.
*/
case CTRL('e'):
if (state != VISUAL)
continue;
if (!hadcnt)
cnt = 1;
/* Bottom line of file already on screen */
forbid(lineDOL()-lineDOT() <= vcnt-1-vcline);
ind = vcnt - vcline - 1 + cnt;
vdown(ind, ind, 1);
vnline(cursor);
continue;
/*
* ^Y Like ^E but up
*/
case CTRL('y'):
if (state != VISUAL)
continue;
if (!hadcnt)
cnt = 1;
forbid(lineDOT()-1<=vcline); /* line 1 already there */
ind = vcline + cnt;
vup(ind, ind, 1);
vnline(cursor);
continue;
/*
* m Mark position in mark register given
* by following letter. Return is
* accomplished via ' or `; former
* to beginning of line where mark
* was set, latter to column where marked.
*/
case 'm':
/*
* Getesc is generally used when a character
* is read as a latter part of a command
* to allow one to hit rubout/escape to cancel
* what you have typed so far. These characters
* are mapped to 0 by the subroutine.
*/
c = getesc();
if (c == 0)
continue;
/*
* Markreg checks that argument is a letter
* and also maps ' and ` to the end of the range
* to allow '' or `` to reference the previous
* context mark.
*/
c = markreg(c);
forbid (c == 0);
vsave();
names[c - 'a'] = (*dot &~ 01);
ncols[c - 'a'] = cursor;
anymarks = 1;
continue;
/*
* ^F Window forwards, with 2 lines of continuity.
* Count repeats.
*/
case CTRL('f'):
vsave();
if (vcnt > 2) {
addr = dot + (vcnt - vcline) - 2 + (cnt-1)*basWLINES;
forbid(addr > dol);
dot = (line*)addr;
vcnt = vcline = 0;
}
vzop(0, 0, '+');
continue;
/*
* ^B Window backwards, with 2 lines of continuity.
* Inverse of ^F.
*/
case CTRL('b'):
vsave();
if (one + vcline != dot && vcnt > 2) {
addr = dot - vcline + 2 - (cnt-1)*basWLINES;
forbid (addr <= zero);
dot = (line*)addr;
vcnt = vcline = 0;
}
vzop(0, 0, '^');
continue;
/*
* z Screen adjustment, taking a following character:
* z<CR> current line to top
* z<NL> like z<CR>
* z- current line to bottom
* also z+, z^ like ^F and ^B.
* A preceding count is line to use rather
* than current line. A count between z and
* specifier character changes the screen size
* for the redraw.
*
*/
case 'z':
if (state == VISUAL) {
i = vgetcnt();
if (i > 0)
vsetsiz(i);
c = getesc();
if (c == 0)
continue;
}
vsave();
vzop(hadcnt, cnt, c);
continue;
/*
* Y Yank lines, abbreviation for y_ or yy.
* Yanked lines can be put later if no
* changes intervene, or can be put in named
* buffers and put anytime in this session.
*/
case 'Y':
ungetkey('_');
c = 'y';
break;
/*
* J Join lines, 2 by default. Count is number
* of lines to join (no join operator sorry.)
*/
case 'J':
forbid (dot == dol);
if (cnt == 1)
cnt = 2;
if (cnt > (i = dol - dot + 1))
cnt = i;
vsave();
vmacchng(1);
setLAST();
cursor = strend(linebuf);
vremote(cnt, join, 0);
notenam = "join";
vmoving = 0;
killU();
vreplace(vcline, cnt, 1);
if (!*cursor && cursor > linebuf)
cursor += skipleft(linebuf, cursor);
if (notecnt == 2)
notecnt = 0;
vrepaint(cursor);
continue;
/*
* S Substitute text for whole lines, abbrev for c_.
* Count is number of lines to change.
*/
case 'S':
ungetkey('_');
c = 'c';
break;
/*
* O Create a new line above current and accept new
* input text, to an escape, there.
* A count specifies, for dumb terminals when
* slowopen is not set, the number of physical
* line space to open on the screen.
*
* o Like O, but opens lines below.
*/
case 'O':
case 'o':
vmacchng(1);
voOpen(c, cnt);
continue;
/*
* C Change text to end of line, short for c$.
*/
case 'C':
if (*cursor) {
ungetkey('$'), c = 'c';
break;
}
goto appnd;
/*
* ~ Switch case of letter under cursor
*/
case '~':
vswitch(cnt);
continue;
/*
* A Append at end of line, short for $a.
*/
case 'A':
operate('$', 1);
appnd:
c = 'a';
/* fall into ... */
/*
* a Appends text after cursor. Text can continue
* through arbitrary number of lines.
*/
case 'a':
if (*cursor) {
if (state == HARDOPEN) {
int c, n;
nextc(c, cursor, n);
putchar(c);
cursor += n;
} else
cursor += skipright(linebuf, cursor);
}
goto insrt;
/*
* I Insert at beginning of whitespace of line,
* short for ^i.
*/
case 'I':
operate('^', 1);
c = 'i';
/* fall into ... */
/*
* R Replace characters, one for one, by input
* (logically), like repeated r commands.
*
* BUG: This is like the typeover mode of many other
* editors, and is only rarely useful. Its
* implementation is a hack in a low level
* routine and it doesn't work very well, e.g.
* you can't move around within a R, etc.
*/
case 'R':
/* fall into... */
/*
* i Insert text to an escape in the buffer.
* Text is arbitrary. This command reminds of
* the i command in bare teco.
*/
case 'i':
insrt:
/*
* Common code for all the insertion commands.
* Save for redo, position cursor, prepare for append
* at command and in visual undo. Note that nothing
* is doomed, unless R when all is, and save the
* current line in a the undo temporary buffer.
*/
vmacchng(1);
setLAST();
vcursat(cursor);
prepapp();
vnoapp();
doomed = c == 'R' ? 10000 : 0;
if(FIXUNDO)
vundkind = VCHNG;
vmoving = 0;
CP(vutmp, linebuf);
/*
* If this is a repeated command, then suppress
* fake insert mode on dumb terminals which looks
* ridiculous and wastes lots of time even at 9600B.
*/
if (vglobp)
hold = HOLDQIK;
vappend(c, cnt, 0);
continue;
/*
* ^? An attention, normally a ^?, just beeps.
* If you are a vi command within ex, then
* two ATTN's will drop you back to command mode.
*/
case_ATTN:
beep();
if (initev || peekkey() != ATTN)
continue;
/* fall into... */
/*
* ^\ A quit always gets command mode.
*/
case QUIT:
/*
* Have to be careful if we were called
* g/xxx/vi
* since a return will just start up again.
* So we simulate an interrupt.
*/
if (inglobal)
onintr(SIGINT);
/* fall into... */
#ifdef notdef
/*
* q Quit back to command mode, unless called as
* vi on command line in which case dont do it
*/
case 'q': /* quit */
if (initev) {
vsave();
CATCH
error(catgets(catd, 1, 226,
"Q gets ex command mode, :q leaves vi"));
ENDCATCH
splitw = 0;
getDOT();
vrepaint(cursor);
continue;
}
#endif
/* fall into... */
/*
* Q Is like q, but always gets to command mode
* even if command line invocation was as vi.
*/
case 'Q':
vsave();
/*
* If we are in the middle of a macro, throw away
* the rest and fix up undo.
* This code copied from getbr().
*/
if (vmacp) {
vmacp = 0;
if (inopen == -1) /* don't screw up undo for esc esc */
vundkind = VMANY;
inopen = 1; /* restore old setting now that macro done */
}
return;
/*
* ZZ Like :x
*/
case 'Z':
forbid(getkey() != 'Z');
oglobp = globp;
globp = "x";
vclrech(0);
goto gogo;
/*
* P Put back text before cursor or before current
* line. If text was whole lines goes back
* as whole lines. If part of a single line
* or parts of whole lines splits up current
* line to form many new lines.
* May specify a named buffer, or the delete
* saving buffers 1-9.
*
* p Like P but after rather than before.
*/
case 'P':
case 'p':
vmoving = 0;
#ifdef notdef
forbid (!vreg && value(UNDOMACRO) && inopen < 0);
#endif
/*
* If previous delete was partial line, use an
* append or insert to put it back so as to
* use insert mode on intelligent terminals.
*/
if (!vreg && DEL[0]) {
forbid ((DEL[0] & (QUOTE|TRIM)) == OVERBUF);
vglobp = DEL;
ungetkey(c == 'p' ? 'a' : 'i');
goto reread;
}
/*
* If a register wasn't specified, then make
* sure there is something to put back.
*/
forbid (!vreg && unddol == dol);
/*
* If we just did a macro the whole buffer is in
* the undo save area. We don't want to put THAT.
*/
forbid (vundkind == VMANY && undkind==UNDALL);
vsave();
vmacchng(1);
setLAST();
i = 0;
if (vreg && partreg(vreg) || !vreg && pkill[0]) {
/*
* Restoring multiple lines which were partial
* lines; will leave cursor in middle
* of line after shoving restored text in to
* split the current line.
*/
i++;
if (c == 'p' && *cursor)
cursor += skipright(linebuf, cursor);
} else {
/*
* In whole line case, have to back up dot
* for P; also want to clear cursor so
* cursor will eventually be positioned
* at the beginning of the first put line.
*/
cursor = 0;
if (c == 'P') {
dot--, vcline--;
c = 'p';
}
}
killU();
/*
* The call to putreg can potentially
* bomb since there may be nothing in a named buffer.
* We thus put a catch in here. If we didn't and
* there was an error we would end up in command mode.
*/
addr = dol; /* old dol */
CATCH
vremote(1, vreg ? putreg : put, vreg);
ONERR
if (vreg == -1) {
splitw = 0;
if (op == 'P')
dot++, vcline++;
goto pfixup;
}
ENDCATCH
splitw = 0;
nlput = dol - addr + 1;
if (!i) {
/*
* Increment undap1, undap2 to make up
* for their incorrect initialization in the
* routine vremote before calling put/putreg.
*/
if (FIXUNDO)
undap1++, undap2++;
vcline++;
nlput--;
/*
* After a put want current line first line,
* and dot was made the last line put in code
* run so far. This is why we increment vcline
* above and decrease dot here.
*/
dot -= nlput - 1;
}
#ifdef TRACE
if (trace)
fprintf(trace, "vreplace(%d, %d, %d), undap1=%d, undap2=%d, dot=%d\n", vcline, i, nlput, lineno(undap1), lineno(undap2), lineno(dot));
#endif
vreplace(vcline, i, nlput);
if (state != VISUAL) {
/*
* Special case in open mode.
* Force action on the screen when a single
* line is put even if it is identical to
* the current line, e.g. on YP; otherwise
* you can't tell anything happened.
*/
vjumpto(dot, cursor, '.');
continue;
}
pfixup:
vrepaint(cursor);
vfixcurs();
continue;
/*
* ^^ Return to previous file.
* Like a :e #, and thus can be used after a
* "No Write" diagnostic.
*/
case CTRL('^'):
forbid (hadcnt);
vsave();
ckaw();
oglobp = globp;
if (value(AUTOWRITE))
globp = "e! #";
else
globp = "e #";
goto gogo;
/*
* ^] Takes word after cursor as tag, and then does
* tag command. Read ``go right to''.
*/
case CTRL(']'):
grabtag();
oglobp = globp;
globp = "tag";
goto gogo;
/*
* & Like :&
*/
case '&':
oglobp = globp;
globp = "&";
goto gogo;
/*
* ^G Bring up a status line at the bottom of
* the screen, like a :file command.
*
* BUG: Was ^S but doesn't work in cbreak mode
*/
case CTRL('g'):
oglobp = globp;
globp = "file";
gogo:
addr = dot;
vsave();
goto doinit;
#ifdef SIGTSTP
/*
* ^Z: suspend editor session and temporarily return
* to shell. Only works with Berkeley/IIASA process
* control in kernel.
*/
case CTRL('z'):
forbid(dosusp == 0 || !ldisc);
vsave();
oglobp = globp;
globp = "stop";
goto gogo;
#endif
/*
* : Read a command from the echo area and
* execute it in command mode.
*/
case ':':
forbid (hadcnt);
vsave();
i = tchng;
addr = dot;
if (readecho(c)) {
esave[0] = 0;
goto fixup;
}
getDOT();
/*
* Use the visual undo buffer to store the global
* string for command mode, since it is idle right now.
*/
oglobp = globp;
CP(vutmp, genbuf+1);
globp = vutmp;
doinit:
esave[0] = 0;
fixech();
/*
* Have to finagle around not to lose last
* character after this command (when run from ex
* command mode). This is clumsy.
*/
d = peekc; ungetchar(0);
if (shouldpo) {
/*
* So after a "Hit return..." ":", we do
* another "Hit return..." the next time
*/
pofix();
shouldpo = 0;
}
CATCH
/*
* Save old values of options so we can
* notice when they change; switch into
* cooked mode so we are interruptible.
*/
onumber = value(NUMBER);
olist = value(LIST);
OPline = Pline;
OPutchar = Putchar;
commands(1, 1);
if (dot == zero && dol > zero)
dot = one;
ONERR
copy(esave, vtube[WECHO],
TUBECOLS * sizeof *esave);
ENDCATCH
fixol();
Pline = OPline;
Putchar = OPutchar;
ungetchar(d);
if (globp && tflag < 0) {
tflag = 0;
goto doinit;
}
globp = oglobp;
/*
* If we ended up with no lines in the buffer, make
* a line, and don't consider the buffer changed.
*/
if (dot == zero) {
fixzero();
/*synced();*/
}
splitw = 0;
/*
* Special case: did list/number options change?
*/
if (onumber != value(NUMBER))
setnumb(value(NUMBER));
if (olist != value(LIST))
setlist(value(LIST));
fixup:
/*
* If a change occurred, other than
* a write which clears changes, then
* we should allow an undo even if .
* didn't move.
*
* BUG: You can make this wrong by
* tricking around with multiple commands
* on one line of : escape, and including
* a write command there, but its not
* worth worrying about.
*/
if (FIXUNDO && tchng && tchng != i)
vundkind = VMANY, cursor = 0;
/*
* If we are about to do another :, hold off
* updating of screen.
*/
if (vcnt < 0 && Peekkey == ':') {
getDOT();
shouldpo = 1;
continue;
}
shouldpo = 0;
/*
* In the case where the file being edited is
* new; e.g. if the initial state hasn't been
* saved yet, then do so now.
*/
if (unddol == truedol) {
vundkind = VNONE;
Vlines = lineDOL();
if (!inglobal)
savevis();
addr = zero;
vcnt = 0;
if (esave[0] == 0)
copy(esave, vtube[WECHO],
TUBECOLS * sizeof *esave);
}
/*
* If the current line moved reset the cursor position.
*/
if (dot != addr) {
vmoving = 0;
cursor = 0;
}
/*
* If current line is not on screen or if we are
* in open mode and . moved, then redraw.
*/
i = vcline + (dot - addr);
if (i < 0 || i >= vcnt && i >= -vcnt || state != VISUAL && dot != addr) {
if (state == CRTOPEN)
vup1();
if (vcnt > 0)
vcnt = 0;
vjumpto(dot, (char *) 0, '.');
} else {
/*
* Current line IS on screen.
* If we did a [Hit return...] then
* restore vcnt and clear screen if in visual
*/
vcline = i;
if (vcnt < 0) {
vcnt = -vcnt;
if (state == VISUAL)
vclear();
else if (state == CRTOPEN) {
vcnt = 0;
}
}
/*
* Limit max value of vcnt based on $
*/
i = vcline + lineDOL() - lineDOT() + 1;
if (i < vcnt)
vcnt = i;
/*
* Dirty and repaint.
*/
vdirty(0, TLINES);
vrepaint(cursor);
}
/*
* If in visual, put back the echo area
* if it was clobberred.
*/
if (state == VISUAL) {
int sdc = destcol, sdl = destline;
splitw++;
vigoto(WECHO, 0);
for (i = 0; i < TUBECOLS - 1; i++) {
if (esave[i] == 0)
break;
vputchar(esave[i]);
}
splitw = 0;
vgoto(sdl, sdc);
}
continue;
/*
* u undo the last changing command.
*/
case 'u':
vundo(1);
continue;
/*
* U restore current line to initial state.
*/
case 'U':
vUndo();
continue;
fonfon:
beep();
vmacp = 0;
inopen = 1; /* might have been -1 */
continue;
}
/*
* Rest of commands are decoded by the operate
* routine.
*/
operate(c, cnt);
}
}
