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/*
* Text editing windows
* Copyright
* (C) 1992 Joseph H. Allen
*
* This file is part of JOE (Joe's Own Editor)
*/
#include "types.h"
int staen = 0;
int staupd = 0;
int keepup = 0;
int bg_stalin;
/* Move text window */
static void movetw(BW *bw, int x, int y)
{
TW *tw = (TW *) bw->object;
if (y || !staen) {
if (!tw->staon) { /* Scroll down and shrink */
nscrldn(bw->parent->t->t, y, bw->parent->nh + y, 1);
}
bwmove(bw, x + (bw->o.linums ? LINCOLS : 0), y + 1);
tw->staon = 1;
} else {
if (tw->staon) { /* Scroll up and grow */
nscrlup(bw->parent->t->t, y, bw->parent->nh + y, 1);
}
bwmove(bw, x + (bw->o.linums ? LINCOLS : 0), y);
tw->staon = 0;
}
}
/* Resize text window */
static void resizetw(BW *bw, int wi, int he)
{
if (bw->parent->ny || !staen)
bwresz(bw, wi - (bw->o.linums ? LINCOLS : 0), he - 1);
else
bwresz(bw, wi - (bw->o.linums ? LINCOLS : 0), he);
}
/* Get current context */
/* Find first line (going backwards) which has 0 indentation level
* and is not a comment, blank, or block structuring line. This is
* likely to be the line with the function name.
*
* There are actually two possibilities:
*
* We want the first line-
*
* int
* foo(int x,int y) {
*
* }
*
* We want the last line-
*
* program foo(input,output);
* var a, b, c : real;
* begin
*
*/
unsigned char *get_context(BW *bw)
{
P *p = pdup(bw->cursor, USTR "get_context");
static unsigned char buf1[stdsiz];
int i, j, spc;
buf1[0] = 0;
/* Find first line with 0 indentation which is not a comment line */
do {
p_goto_bol(p);
if (!pisindent(p) && !pisblank(p)) {
/* next: */
brzs(p,stdbuf,stdsiz/8); /* To avoid buffer overruns with my_iconv */
/* Ignore comment and block structuring lines */
if (!(stdbuf[0]=='{' ||
(stdbuf[0]=='/' && stdbuf[1]=='*') ||
stdbuf[0]=='\f' ||
(stdbuf[0]=='/' && stdbuf[1]=='/') ||
stdbuf[0]=='#' ||
(stdbuf[0]=='b' && stdbuf[1]=='e' && stdbuf[2]=='g' && stdbuf[3]=='i' && stdbuf[4]=='n') ||
(stdbuf[0]=='B' && stdbuf[1]=='E' && stdbuf[2]=='G' && stdbuf[3]=='I' && stdbuf[4]=='N') ||
(stdbuf[0]=='-' && stdbuf[1]=='-') ||
stdbuf[0]==';')) {
/* zcpy(buf1,stdbuf); */
/* replace tabs to spaces and remove adjoining spaces */
for (i=0,j=0,spc=0; stdbuf[i]; i++) {
if (stdbuf[i]=='\t' || stdbuf[i]==' ') {
if (spc) continue;
spc = 1;
}
else spc = 0;
if (stdbuf[i]=='\t')
buf1[j++] = ' ';
else if (stdbuf[i]=='\\') {
buf1[j++] = '\\';
buf1[j++] = '\\';
} else
buf1[j++] = stdbuf[i];
}
buf1[j]= '\0';
/* Uncomment to get the last line instead of the first line (see above)
if (pprevl(p)) {
p_goto_bol(p);
if (!pisindent(p) && !pisblank(p))
goto next;
}
*/
break;
}
}
} while (!buf1[0] && pprevl(p));
prm(p);
return buf1;
}
unsigned char *duplicate_backslashes(unsigned char *s, int len)
{
unsigned char *m;
int x, count;
for (x = count = 0; x != len; ++x)
if (s[x] == '\\')
++count;
m = vsmk(len + count);
for (x = 0; x != len; ++x) {
m = vsadd(m, s[x]);
if (s[x] == '\\')
m = vsadd(m, '\\');
}
return m;
}
/* static */unsigned char *stagen(unsigned char *stalin, BW *bw, unsigned char *s, int fill)
{
unsigned char buf[80];
int x;
W *w = bw->parent;
time_t n=time(NULL);
struct tm *cas;
cas=localtime(&n);
stalin = vstrunc(stalin, 0);
while (*s) {
if (*s == '%' && s[1]) {
switch (*++s) {
case 'x': /* Context (but only if autoindent is enabled) */
{
if ( bw->o.autoindent) {
unsigned char *s = get_context(bw);
/* We need to translate between file's character set to
locale */
my_iconv(stdbuf,locale_map,s,bw->o.charmap);
stalin = vsncpy(sv(stalin), sz(stdbuf));
}
}
break;
case 'y':
{
if (bw->o.syntax) {
joe_snprintf_1(buf, sizeof(buf), "(%s)", bw->o.syntax->name);
stalin = vsncpy(sv(stalin), sz(buf));
}
}
break;
case 't':
{
time_t n = time(NULL);
int l;
unsigned char *d = (unsigned char *)ctime(&n);
l = (d[11] - '0') * 10 + d[12] - '0';
if (l > 12)
l -= 12;
joe_snprintf_1(buf, sizeof(buf), "%2.2d", l);
if (buf[0] == '0')
buf[0] = fill;
stalin = vsncpy(sv(stalin), buf, 2);
stalin = vsncpy(sv(stalin), d + 13, 3);
}
break;
case 'd':
{
if (s[1]) switch (*++s) {
case 'd' : joe_snprintf_1(buf, sizeof(buf), "%02d",cas->tm_mday); break;
case 'm' : joe_snprintf_1(buf, sizeof(buf), "%02d",cas->tm_mon + 1); break;
case 'y' : joe_snprintf_1(buf, sizeof(buf), "%02d",cas->tm_year % 100); break;
case 'Y' : joe_snprintf_1(buf, sizeof(buf), "%04d",cas->tm_year + 1900); break;
case 'w' : joe_snprintf_1(buf, sizeof(buf), "%d",cas->tm_wday); break;
case 'D' : joe_snprintf_1(buf, sizeof(buf), "%03d",cas->tm_yday); break;
default : buf[0]='d'; buf[1]=*s; buf[2]=0;
} else {
buf[0]='d'; buf[1]=0;
}
stalin=vsncpy(sv(stalin),sz(buf));
}
break;
case 'E':
{
unsigned char *ch;
int l;
buf[0]=0;
for(l=0;s[l+1] && s[l+1] != '%'; l++) buf[l]=s[l+1];
if (s[l+1]=='%' && buf[0]) {
buf[l]=0;
s+=l+1;
ch=(unsigned char *)getenv((char *)buf);
if (ch) stalin=vsncpy(sv(stalin),sz(ch));
}
}
break;
case 'Z':
{
unsigned char *ch;
int l;
buf[0]=0;
for(l=0;s[l+1] && s[l+1] != '%'; l++) buf[l]=s[l+1];
if (s[l+1]=='%' && buf[0]) {
buf[l]=0;
s+=l+1;
ch=get_status(bw, buf);
if (ch) stalin=vsncpy(sv(stalin),sz(ch));
}
}
break;
case 'u':
{
time_t n = time(NULL);
unsigned char *d = (unsigned char *)ctime(&n);
stalin = vsncpy(sv(stalin), d + 11, 5);
}
break;
case 'T':
if (bw->o.overtype)
stalin = vsadd(stalin, 'O');
else
stalin = vsadd(stalin, 'I');
break;
case 'W':
if (bw->o.wordwrap)
stalin = vsadd(stalin, 'W');
else
stalin = vsadd(stalin, fill);
break;
case 'I':
if (bw->o.autoindent)
stalin = vsadd(stalin, 'A');
else
stalin = vsadd(stalin, fill);
break;
case 'X':
if (square)
stalin = vsadd(stalin, 'X');
else
stalin = vsadd(stalin, fill);
break;
case 'n':
{
if (bw->b->name) {
unsigned char *tmp = simplify_prefix(bw->b->name);
unsigned char *tmp1 = duplicate_backslashes(sv(tmp));
vsrm(tmp);
stalin = vsncpy(sv(stalin), sv(tmp1));
vsrm(tmp1);
} else {
stalin = vsncpy(sv(stalin), sz(joe_gettext(_("Unnamed"))));
}
}
break;
case 'm':
if (bw->b->changed)
stalin = vsncpy(sv(stalin), sz(joe_gettext(_("(Modified)"))));
break;
case 'R':
if (bw->b->rdonly)
stalin = vsncpy(sv(stalin), sz(joe_gettext(_("(Read only)"))));
break;
case '*':
if (bw->b->changed)
stalin = vsadd(stalin, '*');
else
stalin = vsadd(stalin, fill);
break;
case 'r':
joe_snprintf_1(buf, sizeof(buf), "%-4ld", bw->cursor->line + 1);
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'o':
joe_snprintf_1(buf, sizeof(buf), "%-4lld", bw->cursor->byte);
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'O':
joe_snprintf_1(buf, sizeof(buf), "%-4llX", bw->cursor->byte);
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'a':
if (!piseof(bw->cursor))
joe_snprintf_1(buf, sizeof(buf), "%3d", brch(bw->cursor));
else
joe_snprintf_0(buf, sizeof(buf), " ");
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'A':
if (!piseof(bw->cursor))
joe_snprintf_1(buf, sizeof(buf), "%2.2X", brch(bw->cursor));
else
joe_snprintf_0(buf, sizeof(buf), " ");
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'c':
joe_snprintf_1(buf, sizeof(buf), "%-3ld", piscol(bw->cursor) + 1);
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'p':
if (bw->b->eof->byte >= 1024*1024)
joe_snprintf_1(buf, sizeof(buf), "%3lld", (bw->cursor->byte >> 10) * 100 / (bw->b->eof->byte >> 10));
else if (bw->b->eof->byte)
joe_snprintf_1(buf, sizeof(buf), "%3lld", bw->cursor->byte * 100 / bw->b->eof->byte);
else
joe_snprintf_0(buf, sizeof(buf), "100");
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'l':
joe_snprintf_1(buf, sizeof(buf), "%-4ld", bw->b->eof->line + 1);
for (x = 0; buf[x]; ++x)
if (buf[x] == ' ')
buf[x] = fill;
stalin = vsncpy(sv(stalin), sz(buf));
break;
case 'k':
{
int i;
unsigned char *cpos = buf;
buf[0] = 0;
if (w->kbd->x && w->kbd->seq[0])
for (i = 0; i != w->kbd->x; ++i) {
int c = w->kbd->seq[i] & 127;
if (c < 32) {
cpos[0] = '^';
cpos[1] = c + '@';
cpos += 2;
} else if (c == 127) {
cpos[0] = '^';
cpos[1] = '?';
cpos += 2;
} else {
cpos[0] = c;
cpos += 1;
}
}
*cpos++ = fill;
while (cpos - buf < 4)
*cpos++ = fill;
stalin = vsncpy(sv(stalin), buf, cpos - buf);
}
break;
case 'S':
if (bw->b->pid)
stalin = vsncpy(sv(stalin), sz(joe_gettext(_("*SHELL*"))));
break;
case 'M':
if (recmac) {
joe_snprintf_1(buf, sizeof(buf), joe_gettext(_("(Macro %d recording...)")), recmac->n);
stalin = vsncpy(sv(stalin), sz(buf));
}
break;
default:
stalin = vsadd(stalin, *s);
}
} else
stalin = vsadd(stalin, *s);
++s;
}
return stalin;
}
static void disptw(BW *bw, int flg)
{
W *w = bw->parent;
TW *tw = (TW *) bw->object;
if (bw->o.linums != bw->linums) {
bw->linums = bw->o.linums;
resizetw(bw, w->w, w->h);
movetw(bw, w->x, w->y);
bwfllw(bw);
}
if (bw->o.hex) {
w->cury = (bw->cursor->byte-bw->top->byte)/16 + bw->y - w->y;
w->curx = (bw->cursor->byte-bw->top->byte)%16 + 60 - bw->offset;
} else {
w->cury = bw->cursor->line - bw->top->line + bw->y - w->y;
w->curx = bw->cursor->xcol - bw->offset + (bw->o.linums ? LINCOLS : 0);
}
if ((staupd || keepup || bw->cursor->line != tw->prevline || bw->b->changed != tw->changed || bw->b != tw->prev_b) && (w->y || !staen)) {
int fill;
tw->prevline = bw->cursor->line;
tw->changed = bw->b->changed;
tw->prev_b = bw->b;
if (bw->o.rmsg[0])
fill = bw->o.rmsg[0];
else
fill = ' ';
tw->stalin = stagen(tw->stalin, bw, bw->o.lmsg, fill);
tw->staright = stagen(tw->staright, bw, bw->o.rmsg, fill);
if (fmtlen(tw->staright) < w->w) {
int x = fmtpos(tw->stalin, w->w - fmtlen(tw->staright));
if (x > sLEN(tw->stalin))
tw->stalin = vsfill(sv(tw->stalin), fill, x - sLEN(tw->stalin));
tw->stalin = vsncpy(tw->stalin, fmtpos(tw->stalin, w->w - fmtlen(tw->staright)), sv(tw->staright));
}
tw->stalin = vstrunc(tw->stalin, fmtpos(tw->stalin, w->w));
genfmt(w->t->t, w->x, w->y, 0, tw->stalin, bg_stalin, 0);
w->t->t->updtab[w->y] = 0;
}
if (flg) {
if (bw->o.hex)
bwgenh(bw);
else
bwgen(bw, bw->o.linums);
}
}
/* Split current window */
static void iztw(TW *tw, int y)
{
tw->stalin = NULL;
tw->staright = NULL;
tw->changed = -1;
tw->prevline = -1;
tw->staon = (!staen || y);
tw->prev_b = 0;
}
int usplitw(BW *bw)
{
W *w = bw->parent;
int newh = getgrouph(w);
W *new;
TW *newtw;
BW *newbw;
dostaupd = 1;
if (newh / 2 < FITHEIGHT)
return -1;
new = wcreate(w->t, w->watom, findbotw(w), NULL, w, newh / 2 + (newh & 1), NULL, NULL);
if (!new)
return -1;
wfit(new->t);
new->object = (void *) (newbw = bwmk(new, bw->b, 0));
++bw->b->count;
newbw->offset = bw->offset;
newbw->object = (void *) (newtw = (TW *) joe_malloc(sizeof(TW)));
iztw(newtw, new->y);
pset(newbw->top, bw->top);
pset(newbw->cursor, bw->cursor);
newbw->cursor->xcol = bw->cursor->xcol;
new->t->curwin = new;
return 0;
}
int uduptw(BW *bw)
{
W *w = bw->parent;
int newh = getgrouph(w);
W *new;
TW *newtw;
BW *newbw;
dostaupd = 1;
new = wcreate(w->t, w->watom, findbotw(w), NULL, NULL, newh, NULL, NULL);
if (!new)
return -1;
if (demotegroup(w))
new->t->topwin = new;
new->object = (void *) (newbw = bwmk(new, bw->b, 0));
++bw->b->count;
newbw->offset = bw->offset;
newbw->object = (void *) (newtw = (TW *) joe_malloc(sizeof(TW)));
iztw(newtw, new->y);
pset(newbw->top, bw->top);
pset(newbw->cursor, bw->cursor);
newbw->cursor->xcol = bw->cursor->xcol;
new->t->curwin = new;
wfit(w->t);
return 0;
}
static void instw(BW *bw, B *b, long int l, long int n, int flg)
{
if (b == bw->b)
bwins(bw, l, n, flg);
}
static void deltw(BW *bw, B *b, long int l, long int n, int flg)
{
if (b == bw->b)
bwdel(bw, l, n, flg);
}
WATOM watomtw = {
USTR "main",
disptw,
bwfllw,
NULL,
rtntw,
utypebw,
resizetw,
movetw,
instw,
deltw,
TYPETW
};
int abortit(BW *bw)
{
W *w;
TW *tw;
B *b;
if (bw->parent->watom != &watomtw)
return wabort(bw->parent);
if (bw->b->pid && bw->b->count==1)
return ukillpid(bw);
w = bw->parent;
tw = (TW *) bw->object;
/* If only one main window on the screen... */
if (countmain(w->t) == 1)
/* Replace it with an orphaned buffer if there are any */
if ((b = borphan()) != NULL) {
void *object = bw->object;
/* FIXME: Shouldn't we wabort() and wcreate here to kill
any prompt windows? */
bwrm(bw);
w->object = (void *) (bw = bwmk(w, b, 0));
wredraw(bw->parent);
bw->object = object;
return 0;
}
bwrm(bw);
vsrm(tw->stalin);
joe_free(tw);
w->object = NULL;
wabort(w); /* Eliminate this window and it's children */
return 0;
}
/* User routine for aborting a text window */
static int naborttw(BW *bw, int k, void *object, int *notify)
{
if (notify)
*notify = 1;
if (k != YES_CODE && !yncheck(yes_key, k))
return -1;
genexmsg(bw, 0, NULL);
return abortit(bw);
}
static int naborttw1(BW *bw, int k, void *object, int *notify)
{
if (notify)
*notify = 1;
if (k != YES_CODE && !yncheck(yes_key, k))
return -1;
if (!exmsg) genexmsg(bw, 0, NULL);
return abortit(bw);
}
/* k is last character types which lead to uabort. If k is -1, it means uabort
was called internally, and not by the user: which means uabort will not send
Ctrl-C to process */
int uabort(BW *bw, int k)
{
if (bw->parent->watom != &watomtw)
return wabort(bw->parent);
if (bw->b->pid && bw->b->count==1)
return ukillpid(bw);
if (bw->b->changed && bw->b->count == 1 && !bw->b->scratch)
if (mkqw(bw->parent, sz(joe_gettext(_("Lose changes to this file (y,n,^C)? "))), naborttw, NULL, NULL, NULL))
return 0;
else
return -1;
else
return naborttw(bw, YES_CODE, NULL, NULL);
}
int ucancel(BW *bw, int k)
{
if (bw->parent->watom != &watomtw) {
wabort(bw->parent);
return 0;
} else
return uabort(bw,k);
}
/* Same as above, but only calls genexmsg if nobody else has */
int uabort1(BW *bw, int k)
{
if (bw->parent->watom != &watomtw)
return wabort(bw->parent);
if (bw->b->pid && bw->b->count==1)
return ukillpid(bw);
if (bw->b->changed && bw->b->count == 1 && !bw->b->scratch)
if (mkqw(bw->parent, sz(joe_gettext(_("Lose changes to this file (y,n,^C)? "))), naborttw1, NULL, NULL, NULL))
return 0;
else
return -1;
else
return naborttw1(bw, YES_CODE, NULL, NULL);
}
/* Abort buffer without prompting: just fail if this is last window on buffer */
int uabortbuf(BW *bw)
{
W *w = bw->parent;
B *b;
if (bw->b->pid && bw->b->count==1)
return ukillpid(bw);
if (okrepl(bw))
return -1;
if ((b = borphan()) != NULL) {
void *object = bw->object;
bwrm(bw);
w->object = (void *) (bw = bwmk(w, b, 0));
wredraw(bw->parent);
bw->object = object;
return 0;
}
return naborttw(bw, YES_CODE, NULL, NULL);
}
/* Kill current window (orphans buffer) */
int utw0(BASE *b)
{
BW *bw = b->parent->main->object;
if (countmain(b->parent->t) == 1)
return -1;
if (bw->b->count == 1)
orphit(bw);
return uabort(bw, -1);
}
/* Kill all other windows (orphans buffers) */
int utw1(BASE *b)
{
W *starting = b->parent;
W *mainw = starting->main;
Screen *t = mainw->t;
int yn;
do {
yn = 0;
loop:
do {
wnext(t);
} while (t->curwin->main == mainw && t->curwin != starting);
if (t->curwin->main != mainw) {
BW *bw = t->curwin->main->object;
utw0((BASE *)bw);
yn = 1;
goto loop;
}
} while (yn);
return 0;
}
void setline(B *b, long int line)
{
W *w = maint->curwin;
do {
if (w->watom->what == TYPETW) {
BW *bw = w->object;
if (bw->b == b) {
long oline = bw->top->line;
/* pline(bw->top, line); */
pline(bw->cursor, line);
if (w->y >= 0 && bw->top->line > oline && bw->top->line - oline < bw->h)
nscrlup(w->t->t, bw->y, bw->y + bw->h, (int) (bw->top->line - oline));
else if (w->y >= 0 && bw->top->line < oline && oline - bw->top->line < bw->h)
nscrldn(w->t->t, bw->y, bw->y + bw->h, (int) (oline - bw->top->line));
msetI(bw->t->t->updtab + bw->y, 1, bw->h);
}
}
} while ((w = w->link.next) != maint->curwin);
/* In case error buffer was orphaned */
if (errbuf == b && b->oldcur) {
pline(b->oldcur, line);
}
}
/* Create a text window. It becomes the last window on the screen */
BW *wmktw(Screen *t, B *b)
{
W *w;
BW *bw;
TW *tw;
w = wcreate(t, &watomtw, NULL, NULL, NULL, t->h, NULL, NULL);
wfit(w->t);
w->object = (void *) (bw = bwmk(w, b, 0));
bw->object = (void *) (tw = (TW *) joe_malloc(sizeof(TW)));
iztw(tw, w->y);
return bw;
}

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