1 b3994ec5 2003-12-11 devnull #include <u.h>
2 b3994ec5 2003-12-11 devnull #include <libc.h>
3 b3994ec5 2003-12-11 devnull #include <draw.h>
4 b3994ec5 2003-12-11 devnull #include <thread.h>
5 b3994ec5 2003-12-11 devnull #include <cursor.h>
6 b3994ec5 2003-12-11 devnull #include <mouse.h>
7 b3994ec5 2003-12-11 devnull #include <keyboard.h>
8 b3994ec5 2003-12-11 devnull #include <frame.h>
9 b3994ec5 2003-12-11 devnull #include <fcall.h>
10 b3994ec5 2003-12-11 devnull #include <plumb.h>
11 b3994ec5 2003-12-11 devnull #include "dat.h"
12 b3994ec5 2003-12-11 devnull #include "fns.h"
14 b3994ec5 2003-12-11 devnull static Point prevmouse;
15 b3994ec5 2003-12-11 devnull static Window *mousew;
18 be22ae2d 2004-03-26 devnull range(int q0, int q1)
22 be22ae2d 2004-03-26 devnull r.q0 = q0;
23 be22ae2d 2004-03-26 devnull r.q1 = q1;
24 be22ae2d 2004-03-26 devnull return r;
28 8ad51794 2004-03-25 devnull runestr(Rune *r, uint n)
30 8ad51794 2004-03-25 devnull Runestr rs;
32 8ad51794 2004-03-25 devnull rs.r = r;
33 8ad51794 2004-03-25 devnull rs.nr = n;
34 8ad51794 2004-03-25 devnull return rs;
38 b3994ec5 2003-12-11 devnull cvttorunes(char *p, int n, Rune *r, int *nb, int *nr, int *nulls)
40 b3994ec5 2003-12-11 devnull uchar *q;
42 b3994ec5 2003-12-11 devnull int j, w;
45 b3994ec5 2003-12-11 devnull * Always guaranteed that n bytes may be interpreted
46 b3994ec5 2003-12-11 devnull * without worrying about partial runes. This may mean
47 b3994ec5 2003-12-11 devnull * reading up to UTFmax-1 more bytes than n; the caller
48 b3994ec5 2003-12-11 devnull * knows this. If n is a firm limit, the caller should
49 b3994ec5 2003-12-11 devnull * set p[n] = 0.
51 b3994ec5 2003-12-11 devnull q = (uchar*)p;
53 b3994ec5 2003-12-11 devnull for(j=0; j<n; j+=w){
54 b3994ec5 2003-12-11 devnull if(*q < Runeself){
56 b3994ec5 2003-12-11 devnull *s = *q++;
58 b3994ec5 2003-12-11 devnull w = chartorune(s, (char*)q);
63 b3994ec5 2003-12-11 devnull else if(nulls)
64 b3994ec5 2003-12-11 devnull *nulls = TRUE;
66 b3994ec5 2003-12-11 devnull *nb = (char*)q-p;
67 b3994ec5 2003-12-11 devnull *nr = s-r;
71 b3994ec5 2003-12-11 devnull error(char *s)
73 b3994ec5 2003-12-11 devnull fprint(2, "acme: %s: %r\n", s);
78 b3994ec5 2003-12-11 devnull errorwin1(Rune *dir, int ndir, Rune **incl, int nincl)
80 b3994ec5 2003-12-11 devnull Window *w;
82 b3994ec5 2003-12-11 devnull int i, n;
83 b3994ec5 2003-12-11 devnull static Rune Lpluserrors[] = { '+', 'E', 'r', 'r', 'o', 'r', 's', 0 };
85 5a8e63b2 2004-02-29 devnull r = runemalloc(ndir+8);
86 5a8e63b2 2004-02-29 devnull if(n = ndir){ /* assign = */
87 b3994ec5 2003-12-11 devnull runemove(r, dir, ndir);
88 5a8e63b2 2004-02-29 devnull r[n++] = L'/';
90 b3994ec5 2003-12-11 devnull runemove(r+n, Lpluserrors, 7);
92 b3994ec5 2003-12-11 devnull w = lookfile(r, n);
93 b3994ec5 2003-12-11 devnull if(w == nil){
94 b3994ec5 2003-12-11 devnull if(row.ncol == 0)
95 b3994ec5 2003-12-11 devnull if(rowadd(&row, nil, -1) == nil)
96 b3994ec5 2003-12-11 devnull error("can't create column to make error window");
97 b3994ec5 2003-12-11 devnull w = coladd(row.col[row.ncol-1], nil, nil, -1);
98 b3994ec5 2003-12-11 devnull w->filemenu = FALSE;
99 b3994ec5 2003-12-11 devnull winsetname(w, r, n);
101 b3994ec5 2003-12-11 devnull free(r);
102 b3994ec5 2003-12-11 devnull for(i=nincl; --i>=0; ){
103 b3994ec5 2003-12-11 devnull n = runestrlen(incl[i]);
104 b3994ec5 2003-12-11 devnull r = runemalloc(n);
105 b3994ec5 2003-12-11 devnull runemove(r, incl[i], n);
106 b3994ec5 2003-12-11 devnull winaddincl(w, r, n);
108 5a8e63b2 2004-02-29 devnull w->autoindent = globalautoindent;
109 b3994ec5 2003-12-11 devnull return w;
112 b3994ec5 2003-12-11 devnull /* make new window, if necessary; return with it locked */
114 5a8e63b2 2004-02-29 devnull errorwin(Mntdir *md, int owner)
116 b3994ec5 2003-12-11 devnull Window *w;
118 b3994ec5 2003-12-11 devnull for(;;){
119 b3994ec5 2003-12-11 devnull if(md == nil)
120 b3994ec5 2003-12-11 devnull w = errorwin1(nil, 0, nil, 0);
122 b3994ec5 2003-12-11 devnull w = errorwin1(md->dir, md->ndir, md->incl, md->nincl);
123 5a8e63b2 2004-02-29 devnull winlock(w, owner);
124 b3994ec5 2003-12-11 devnull if(w->col != nil)
126 b3994ec5 2003-12-11 devnull /* window was deleted too fast */
127 5a8e63b2 2004-02-29 devnull winunlock(w);
129 b3994ec5 2003-12-11 devnull return w;
132 5a8e63b2 2004-02-29 devnull typedef struct Warning Warning;
134 5a8e63b2 2004-02-29 devnull struct Warning{
135 5a8e63b2 2004-02-29 devnull Mntdir *md;
136 5a8e63b2 2004-02-29 devnull Buffer buf;
137 5a8e63b2 2004-02-29 devnull Warning *next;
140 5a8e63b2 2004-02-29 devnull static Warning *warnings;
144 5a8e63b2 2004-02-29 devnull addwarningtext(Mntdir *md, Rune *r, int nr)
146 5a8e63b2 2004-02-29 devnull Warning *warn;
148 5a8e63b2 2004-02-29 devnull for(warn = warnings; warn; warn=warn->next){
149 5a8e63b2 2004-02-29 devnull if(warn->md == md){
150 5a8e63b2 2004-02-29 devnull bufinsert(&warn->buf, warn->buf.nc, r, nr);
154 5a8e63b2 2004-02-29 devnull warn = emalloc(sizeof(Warning));
155 5a8e63b2 2004-02-29 devnull warn->next = warnings;
156 8ad51794 2004-03-25 devnull warn->md = md;
158 8ad51794 2004-03-25 devnull fsysincid(md);
159 5a8e63b2 2004-02-29 devnull warnings = warn;
160 5a8e63b2 2004-02-29 devnull bufinsert(&warn->buf, 0, r, nr);
161 8ad51794 2004-03-25 devnull nbsendp(cwarn, 0);
164 8ad51794 2004-03-25 devnull /* called while row is locked */
166 8ad51794 2004-03-25 devnull flushwarnings(void)
168 5a8e63b2 2004-02-29 devnull Warning *warn, *next;
169 b3994ec5 2003-12-11 devnull Window *w;
170 b3994ec5 2003-12-11 devnull Text *t;
171 5a8e63b2 2004-02-29 devnull int owner, nr, q0, n;
172 5a8e63b2 2004-02-29 devnull Rune *r;
174 b3994ec5 2003-12-11 devnull if(row.ncol == 0){ /* really early error */
175 b3994ec5 2003-12-11 devnull rowinit(&row, screen->clipr);
176 b3994ec5 2003-12-11 devnull rowadd(&row, nil, -1);
177 b3994ec5 2003-12-11 devnull rowadd(&row, nil, -1);
178 b3994ec5 2003-12-11 devnull if(row.ncol == 0)
179 5a8e63b2 2004-02-29 devnull error("initializing columns in flushwarnings()");
182 5a8e63b2 2004-02-29 devnull for(warn=warnings; warn; warn=next) {
183 5a8e63b2 2004-02-29 devnull w = errorwin(warn->md, 'E');
184 5a8e63b2 2004-02-29 devnull t = &w->body;
185 5a8e63b2 2004-02-29 devnull owner = w->owner;
186 5a8e63b2 2004-02-29 devnull if(owner == 0)
187 5a8e63b2 2004-02-29 devnull w->owner = 'E';
188 5a8e63b2 2004-02-29 devnull wincommit(w, t);
190 5a8e63b2 2004-02-29 devnull * Most commands don't generate much output. For instance,
191 5a8e63b2 2004-02-29 devnull * Edit ,>cat goes through /dev/cons and is already in blocks
192 5a8e63b2 2004-02-29 devnull * because of the i/o system, but a few can. Edit ,p will
193 5a8e63b2 2004-02-29 devnull * put the entire result into a single hunk. So it's worth doing
194 5a8e63b2 2004-02-29 devnull * this in blocks (and putting the text in a buffer in the first
195 5a8e63b2 2004-02-29 devnull * place), to avoid a big memory footprint.
197 5a8e63b2 2004-02-29 devnull r = fbufalloc();
198 5a8e63b2 2004-02-29 devnull q0 = t->file->b.nc;
199 5a8e63b2 2004-02-29 devnull for(n = 0; n < warn->buf.nc; n += nr){
200 5a8e63b2 2004-02-29 devnull nr = warn->buf.nc - n;
201 5a8e63b2 2004-02-29 devnull if(nr > RBUFSIZE)
202 5a8e63b2 2004-02-29 devnull nr = RBUFSIZE;
203 5a8e63b2 2004-02-29 devnull bufread(&warn->buf, n, r, nr);
204 5a8e63b2 2004-02-29 devnull textbsinsert(t, t->file->b.nc, r, nr, TRUE, &nr);
206 5a8e63b2 2004-02-29 devnull textshow(t, q0, t->file->b.nc, 1);
207 5a8e63b2 2004-02-29 devnull free(r);
208 5a8e63b2 2004-02-29 devnull winsettag(t->w);
209 5a8e63b2 2004-02-29 devnull textscrdraw(t);
210 5a8e63b2 2004-02-29 devnull w->owner = owner;
211 5a8e63b2 2004-02-29 devnull w->dirty = FALSE;
212 b3994ec5 2003-12-11 devnull winunlock(w);
213 5a8e63b2 2004-02-29 devnull bufclose(&warn->buf);
214 5a8e63b2 2004-02-29 devnull next = warn->next;
215 8ad51794 2004-03-25 devnull if(warn->md)
216 8ad51794 2004-03-25 devnull fsysdelid(warn->md);
217 5a8e63b2 2004-02-29 devnull free(warn);
219 5a8e63b2 2004-02-29 devnull warnings = nil;
223 b3994ec5 2003-12-11 devnull warning(Mntdir *md, char *s, ...)
225 b3994ec5 2003-12-11 devnull Rune *r;
226 b3994ec5 2003-12-11 devnull va_list arg;
228 b3994ec5 2003-12-11 devnull va_start(arg, s);
229 b3994ec5 2003-12-11 devnull r = runevsmprint(s, arg);
230 b3994ec5 2003-12-11 devnull va_end(arg);
231 5a8e63b2 2004-02-29 devnull if(r == nil)
232 5a8e63b2 2004-02-29 devnull error("runevsmprint failed");
233 5a8e63b2 2004-02-29 devnull addwarningtext(md, r, runestrlen(r));
237 b3994ec5 2003-12-11 devnull runeeq(Rune *s1, uint n1, Rune *s2, uint n2)
239 b3994ec5 2003-12-11 devnull if(n1 != n2)
240 b3994ec5 2003-12-11 devnull return FALSE;
241 b3994ec5 2003-12-11 devnull return memcmp(s1, s2, n1*sizeof(Rune)) == 0;
245 b3994ec5 2003-12-11 devnull min(uint a, uint b)
247 b3994ec5 2003-12-11 devnull if(a < b)
248 b3994ec5 2003-12-11 devnull return a;
249 b3994ec5 2003-12-11 devnull return b;
253 b3994ec5 2003-12-11 devnull max(uint a, uint b)
255 b3994ec5 2003-12-11 devnull if(a > b)
256 b3994ec5 2003-12-11 devnull return a;
257 b3994ec5 2003-12-11 devnull return b;
261 b3994ec5 2003-12-11 devnull runetobyte(Rune *r, int n)
263 b3994ec5 2003-12-11 devnull char *s;
265 b3994ec5 2003-12-11 devnull if(r == nil)
266 b3994ec5 2003-12-11 devnull return nil;
267 b3994ec5 2003-12-11 devnull s = emalloc(n*UTFmax+1);
268 b3994ec5 2003-12-11 devnull setmalloctag(s, getcallerpc(&r));
269 b3994ec5 2003-12-11 devnull snprint(s, n*UTFmax+1, "%.*S", n, r);
270 b3994ec5 2003-12-11 devnull return s;
274 b3994ec5 2003-12-11 devnull bytetorune(char *s, int *ip)
276 b3994ec5 2003-12-11 devnull Rune *r;
277 b3994ec5 2003-12-11 devnull int nb, nr;
279 b3994ec5 2003-12-11 devnull nb = strlen(s);
280 b3994ec5 2003-12-11 devnull r = runemalloc(nb+1);
281 b3994ec5 2003-12-11 devnull cvttorunes(s, nb, r, &nb, &nr, nil);
282 b3994ec5 2003-12-11 devnull r[nr] = '\0';
283 b3994ec5 2003-12-11 devnull *ip = nr;
284 b3994ec5 2003-12-11 devnull return r;
288 b3994ec5 2003-12-11 devnull isalnum(Rune c)
291 b3994ec5 2003-12-11 devnull * Hard to get absolutely right. Use what we know about ASCII
292 b3994ec5 2003-12-11 devnull * and assume anything above the Latin control characters is
293 b3994ec5 2003-12-11 devnull * potentially an alphanumeric.
295 b3994ec5 2003-12-11 devnull if(c <= ' ')
296 b3994ec5 2003-12-11 devnull return FALSE;
297 b3994ec5 2003-12-11 devnull if(0x7F<=c && c<=0xA0)
298 b3994ec5 2003-12-11 devnull return FALSE;
299 b3994ec5 2003-12-11 devnull if(utfrune("!\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~", c))
300 b3994ec5 2003-12-11 devnull return FALSE;
301 b3994ec5 2003-12-11 devnull return TRUE;
305 b3994ec5 2003-12-11 devnull rgetc(void *v, uint n)
307 b3994ec5 2003-12-11 devnull return ((Rune*)v)[n];
311 b3994ec5 2003-12-11 devnull tgetc(void *a, uint n)
313 b3994ec5 2003-12-11 devnull Text *t;
316 b3994ec5 2003-12-11 devnull if(n >= t->file->b.nc)
317 b3994ec5 2003-12-11 devnull return 0;
318 b3994ec5 2003-12-11 devnull return textreadc(t, n);
322 b3994ec5 2003-12-11 devnull skipbl(Rune *r, int n, int *np)
324 15680d56 2004-03-05 devnull while(n>0 && (*r==' ' || *r=='\t' || *r=='\n')){
328 b3994ec5 2003-12-11 devnull *np = n;
329 b3994ec5 2003-12-11 devnull return r;
333 b3994ec5 2003-12-11 devnull findbl(Rune *r, int n, int *np)
335 0d0df317 2004-03-05 devnull while(n>0 && *r!=' ' && *r!='\t' && *r!='\n'){
339 b3994ec5 2003-12-11 devnull *np = n;
340 b3994ec5 2003-12-11 devnull return r;
344 b3994ec5 2003-12-11 devnull savemouse(Window *w)
346 b3994ec5 2003-12-11 devnull prevmouse = mouse->xy;
347 b3994ec5 2003-12-11 devnull mousew = w;
351 b3994ec5 2003-12-11 devnull restoremouse(Window *w)
353 b3994ec5 2003-12-11 devnull if(mousew!=nil && mousew==w)
354 b3994ec5 2003-12-11 devnull moveto(mousectl, prevmouse);
355 b3994ec5 2003-12-11 devnull mousew = nil;
359 b3994ec5 2003-12-11 devnull clearmouse()
361 b3994ec5 2003-12-11 devnull mousew = nil;
365 b3994ec5 2003-12-11 devnull estrdup(char *s)
367 b3994ec5 2003-12-11 devnull char *t;
369 b3994ec5 2003-12-11 devnull t = strdup(s);
370 b3994ec5 2003-12-11 devnull if(t == nil)
371 b3994ec5 2003-12-11 devnull error("strdup failed");
372 b3994ec5 2003-12-11 devnull setmalloctag(t, getcallerpc(&s));
373 b3994ec5 2003-12-11 devnull return t;
377 b3994ec5 2003-12-11 devnull emalloc(uint n)
379 b3994ec5 2003-12-11 devnull void *p;
381 b3994ec5 2003-12-11 devnull p = malloc(n);
382 b3994ec5 2003-12-11 devnull if(p == nil){
383 b3994ec5 2003-12-11 devnull fprint(2, "allocating %d from %lux: %r\n", n, getcallerpc(&n));
384 b3994ec5 2003-12-11 devnull *(int*)0=0;
385 b3994ec5 2003-12-11 devnull error("malloc failed");
387 b3994ec5 2003-12-11 devnull setmalloctag(p, getcallerpc(&n));
388 b3994ec5 2003-12-11 devnull memset(p, 0, n);
389 b3994ec5 2003-12-11 devnull return p;
393 b3994ec5 2003-12-11 devnull erealloc(void *p, uint n)
395 b3994ec5 2003-12-11 devnull p = realloc(p, n);
396 b3994ec5 2003-12-11 devnull if(p == nil){
397 b3994ec5 2003-12-11 devnull fprint(2, "reallocating %d: %r\n", n);
398 b3994ec5 2003-12-11 devnull error("realloc failed");
400 b3994ec5 2003-12-11 devnull setmalloctag(p, getcallerpc(&n));
401 b3994ec5 2003-12-11 devnull return p;
405 b3994ec5 2003-12-11 devnull * Heuristic city.
408 b3994ec5 2003-12-11 devnull makenewwindow(Text *t)
410 b3994ec5 2003-12-11 devnull Column *c;
411 b3994ec5 2003-12-11 devnull Window *w, *bigw, *emptyw;
412 b3994ec5 2003-12-11 devnull Text *emptyb;
413 b3994ec5 2003-12-11 devnull int i, y, el;
415 b3994ec5 2003-12-11 devnull if(activecol)
416 b3994ec5 2003-12-11 devnull c = activecol;
417 b3994ec5 2003-12-11 devnull else if(seltext && seltext->col)
418 b3994ec5 2003-12-11 devnull c = seltext->col;
419 b3994ec5 2003-12-11 devnull else if(t && t->col)
420 b3994ec5 2003-12-11 devnull c = t->col;
422 b3994ec5 2003-12-11 devnull if(row.ncol==0 && rowadd(&row, nil, -1)==nil)
423 b3994ec5 2003-12-11 devnull error("can't make column");
424 b3994ec5 2003-12-11 devnull c = row.col[row.ncol-1];
426 b3994ec5 2003-12-11 devnull activecol = c;
427 b3994ec5 2003-12-11 devnull if(t==nil || t->w==nil || c->nw==0)
428 b3994ec5 2003-12-11 devnull return coladd(c, nil, nil, -1);
430 b3994ec5 2003-12-11 devnull /* find biggest window and biggest blank spot */
431 b3994ec5 2003-12-11 devnull emptyw = c->w[0];
432 b3994ec5 2003-12-11 devnull bigw = emptyw;
433 b3994ec5 2003-12-11 devnull for(i=1; i<c->nw; i++){
434 b3994ec5 2003-12-11 devnull w = c->w[i];
435 b3994ec5 2003-12-11 devnull /* use >= to choose one near bottom of screen */
436 b3994ec5 2003-12-11 devnull if(w->body.fr.maxlines >= bigw->body.fr.maxlines)
437 b3994ec5 2003-12-11 devnull bigw = w;
438 b3994ec5 2003-12-11 devnull if(w->body.fr.maxlines-w->body.fr.nlines >= emptyw->body.fr.maxlines-emptyw->body.fr.nlines)
439 b3994ec5 2003-12-11 devnull emptyw = w;
441 b3994ec5 2003-12-11 devnull emptyb = &emptyw->body;
442 b3994ec5 2003-12-11 devnull el = emptyb->fr.maxlines-emptyb->fr.nlines;
443 b3994ec5 2003-12-11 devnull /* if empty space is big, use it */
444 b3994ec5 2003-12-11 devnull if(el>15 || (el>3 && el>(bigw->body.fr.maxlines-1)/2))
445 b3994ec5 2003-12-11 devnull y = emptyb->fr.r.min.y+emptyb->fr.nlines*font->height;
447 b3994ec5 2003-12-11 devnull /* if this window is in column and isn't much smaller, split it */
448 b3994ec5 2003-12-11 devnull if(t->col==c && Dy(t->w->r)>2*Dy(bigw->r)/3)
449 b3994ec5 2003-12-11 devnull bigw = t->w;
450 b3994ec5 2003-12-11 devnull y = (bigw->r.min.y + bigw->r.max.y)/2;
452 b3994ec5 2003-12-11 devnull w = coladd(c, nil, nil, y);
453 b3994ec5 2003-12-11 devnull if(w->body.fr.maxlines < 2)
454 b3994ec5 2003-12-11 devnull colgrow(w->col, w, 1);
455 b3994ec5 2003-12-11 devnull return w;