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 c1973705 2004-02-09 devnull #include <complete.h>
12 b3994ec5 2003-12-11 devnull #include "dat.h"
13 b3994ec5 2003-12-11 devnull #include "fns.h"
15 b3994ec5 2003-12-11 devnull Image *tagcols[NCOL];
16 b3994ec5 2003-12-11 devnull Image *textcols[NCOL];
17 c1973705 2004-02-09 devnull static Rune Ldot[] = { '.', 0 };
20 b3994ec5 2003-12-11 devnull TABDIR = 3 /* width of tabs in directory windows */
24 b3994ec5 2003-12-11 devnull textinit(Text *t, File *f, Rectangle r, Reffont *rf, Image *cols[NCOL])
26 b3994ec5 2003-12-11 devnull t->file = f;
27 b3994ec5 2003-12-11 devnull t->all = r;
28 b3994ec5 2003-12-11 devnull t->scrollr = r;
29 b3994ec5 2003-12-11 devnull t->scrollr.max.x = r.min.x+Scrollwid;
30 b3994ec5 2003-12-11 devnull t->lastsr = nullrect;
31 b3994ec5 2003-12-11 devnull r.min.x += Scrollwid+Scrollgap;
32 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
33 b3994ec5 2003-12-11 devnull t->ncache = 0;
34 b3994ec5 2003-12-11 devnull t->reffont = rf;
35 b3994ec5 2003-12-11 devnull t->tabstop = maxtab;
36 b3994ec5 2003-12-11 devnull memmove(t->fr.cols, cols, sizeof t->fr.cols);
37 b3994ec5 2003-12-11 devnull textredraw(t, r, rf->f, screen, -1);
41 b3994ec5 2003-12-11 devnull textredraw(Text *t, Rectangle r, Font *f, Image *b, int odx)
43 b3994ec5 2003-12-11 devnull int maxt;
44 b3994ec5 2003-12-11 devnull Rectangle rr;
46 b3994ec5 2003-12-11 devnull frinit(&t->fr, r, f, b, t->fr.cols);
47 b3994ec5 2003-12-11 devnull rr = t->fr.r;
48 b3994ec5 2003-12-11 devnull rr.min.x -= Scrollwid; /* back fill to scroll bar */
49 b3994ec5 2003-12-11 devnull draw(t->fr.b, rr, t->fr.cols[BACK], nil, ZP);
50 b3994ec5 2003-12-11 devnull /* use no wider than 3-space tabs in a directory */
51 b3994ec5 2003-12-11 devnull maxt = maxtab;
52 b3994ec5 2003-12-11 devnull if(t->what == Body){
53 b3994ec5 2003-12-11 devnull if(t->w->isdir)
54 b3994ec5 2003-12-11 devnull maxt = min(TABDIR, maxtab);
56 b3994ec5 2003-12-11 devnull maxt = t->tabstop;
58 b3994ec5 2003-12-11 devnull t->fr.maxtab = maxt*stringwidth(f, "0");
59 b3994ec5 2003-12-11 devnull if(t->what==Body && t->w->isdir && odx!=Dx(t->all)){
60 b3994ec5 2003-12-11 devnull if(t->fr.maxlines > 0){
61 b3994ec5 2003-12-11 devnull textreset(t);
62 b3994ec5 2003-12-11 devnull textcolumnate(t, t->w->dlp, t->w->ndl);
63 b3994ec5 2003-12-11 devnull textshow(t, 0, 0, 1);
66 b3994ec5 2003-12-11 devnull textfill(t);
67 b3994ec5 2003-12-11 devnull textsetselect(t, t->q0, t->q1);
72 b3994ec5 2003-12-11 devnull textresize(Text *t, Rectangle r)
76 b3994ec5 2003-12-11 devnull if(Dy(r) > 0)
77 b3994ec5 2003-12-11 devnull r.max.y -= Dy(r)%t->fr.font->height;
79 b3994ec5 2003-12-11 devnull r.max.y = r.min.y;
80 b3994ec5 2003-12-11 devnull odx = Dx(t->all);
81 b3994ec5 2003-12-11 devnull t->all = r;
82 b3994ec5 2003-12-11 devnull t->scrollr = r;
83 b3994ec5 2003-12-11 devnull t->scrollr.max.x = r.min.x+Scrollwid;
84 b3994ec5 2003-12-11 devnull t->lastsr = nullrect;
85 b3994ec5 2003-12-11 devnull r.min.x += Scrollwid+Scrollgap;
86 b3994ec5 2003-12-11 devnull frclear(&t->fr, 0);
87 25e0e4f3 2004-03-26 devnull textredraw(t, r, t->fr.font, screen, odx);
88 b3994ec5 2003-12-11 devnull return r.max.y;
92 b3994ec5 2003-12-11 devnull textclose(Text *t)
94 b3994ec5 2003-12-11 devnull free(t->cache);
95 b3994ec5 2003-12-11 devnull frclear(&t->fr, 1);
96 b3994ec5 2003-12-11 devnull filedeltext(t->file, t);
97 b3994ec5 2003-12-11 devnull t->file = nil;
98 b3994ec5 2003-12-11 devnull rfclose(t->reffont);
99 b3994ec5 2003-12-11 devnull if(argtext == t)
100 b3994ec5 2003-12-11 devnull argtext = nil;
101 b3994ec5 2003-12-11 devnull if(typetext == t)
102 b3994ec5 2003-12-11 devnull typetext = nil;
103 b3994ec5 2003-12-11 devnull if(seltext == t)
104 b3994ec5 2003-12-11 devnull seltext = nil;
105 b3994ec5 2003-12-11 devnull if(mousetext == t)
106 b3994ec5 2003-12-11 devnull mousetext = nil;
107 b3994ec5 2003-12-11 devnull if(barttext == t)
108 b3994ec5 2003-12-11 devnull barttext = nil;
112 b3994ec5 2003-12-11 devnull dircmp(const void *a, const void *b)
114 b3994ec5 2003-12-11 devnull Dirlist *da, *db;
115 b3994ec5 2003-12-11 devnull int i, n;
117 b3994ec5 2003-12-11 devnull da = *(Dirlist**)a;
118 b3994ec5 2003-12-11 devnull db = *(Dirlist**)b;
119 b3994ec5 2003-12-11 devnull n = min(da->nr, db->nr);
120 b3994ec5 2003-12-11 devnull i = memcmp(da->r, db->r, n*sizeof(Rune));
122 b3994ec5 2003-12-11 devnull return i;
123 b3994ec5 2003-12-11 devnull return da->nr - db->nr;
127 b3994ec5 2003-12-11 devnull textcolumnate(Text *t, Dirlist **dlp, int ndl)
129 b3994ec5 2003-12-11 devnull int i, j, w, colw, mint, maxt, ncol, nrow;
130 b3994ec5 2003-12-11 devnull Dirlist *dl;
131 b3994ec5 2003-12-11 devnull uint q1;
132 b3994ec5 2003-12-11 devnull static Rune Lnl[] = { '\n', 0 };
133 b3994ec5 2003-12-11 devnull static Rune Ltab[] = { '\t', 0 };
135 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
137 b3994ec5 2003-12-11 devnull mint = stringwidth(t->fr.font, "0");
138 b3994ec5 2003-12-11 devnull /* go for narrower tabs if set more than 3 wide */
139 b3994ec5 2003-12-11 devnull t->fr.maxtab = min(maxtab, TABDIR)*mint;
140 b3994ec5 2003-12-11 devnull maxt = t->fr.maxtab;
141 b3994ec5 2003-12-11 devnull colw = 0;
142 b3994ec5 2003-12-11 devnull for(i=0; i<ndl; i++){
143 b3994ec5 2003-12-11 devnull dl = dlp[i];
144 b3994ec5 2003-12-11 devnull w = dl->wid;
145 b3994ec5 2003-12-11 devnull if(maxt-w%maxt < mint || w%maxt==0)
146 b3994ec5 2003-12-11 devnull w += mint;
147 b3994ec5 2003-12-11 devnull if(w % maxt)
148 b3994ec5 2003-12-11 devnull w += maxt-(w%maxt);
149 b3994ec5 2003-12-11 devnull if(w > colw)
150 b3994ec5 2003-12-11 devnull colw = w;
152 b3994ec5 2003-12-11 devnull if(colw == 0)
153 b3994ec5 2003-12-11 devnull ncol = 1;
155 b3994ec5 2003-12-11 devnull ncol = max(1, Dx(t->fr.r)/colw);
156 b3994ec5 2003-12-11 devnull nrow = (ndl+ncol-1)/ncol;
159 b3994ec5 2003-12-11 devnull for(i=0; i<nrow; i++){
160 b3994ec5 2003-12-11 devnull for(j=i; j<ndl; j+=nrow){
161 b3994ec5 2003-12-11 devnull dl = dlp[j];
162 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, dl->r, dl->nr);
163 b3994ec5 2003-12-11 devnull q1 += dl->nr;
164 b3994ec5 2003-12-11 devnull if(j+nrow >= ndl)
166 b3994ec5 2003-12-11 devnull w = dl->wid;
167 b3994ec5 2003-12-11 devnull if(maxt-w%maxt < mint){
168 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Ltab, 1);
170 b3994ec5 2003-12-11 devnull w += mint;
173 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Ltab, 1);
175 b3994ec5 2003-12-11 devnull w += maxt-(w%maxt);
176 b3994ec5 2003-12-11 devnull }while(w < colw);
178 b3994ec5 2003-12-11 devnull fileinsert(t->file, q1, Lnl, 1);
184 b3994ec5 2003-12-11 devnull textload(Text *t, uint q0, char *file, int setqid)
186 b3994ec5 2003-12-11 devnull Rune *rp;
187 b3994ec5 2003-12-11 devnull Dirlist *dl, **dlp;
188 b3994ec5 2003-12-11 devnull int fd, i, j, n, ndl, nulls;
189 b3994ec5 2003-12-11 devnull uint q, q1;
190 b3994ec5 2003-12-11 devnull Dir *d, *dbuf;
191 b3994ec5 2003-12-11 devnull char *tmp;
192 b3994ec5 2003-12-11 devnull Text *u;
194 b3994ec5 2003-12-11 devnull if(t->ncache!=0 || t->file->b.nc || t->w==nil || t!=&t->w->body || (t->w->isdir && t->file->nname==0))
195 b3994ec5 2003-12-11 devnull error("text.load");
196 b3994ec5 2003-12-11 devnull fd = open(file, OREAD);
197 b3994ec5 2003-12-11 devnull if(fd < 0){
198 b3994ec5 2003-12-11 devnull warning(nil, "can't open %s: %r\n", file);
199 b3994ec5 2003-12-11 devnull return 0;
201 b3994ec5 2003-12-11 devnull d = dirfstat(fd);
202 b3994ec5 2003-12-11 devnull if(d == nil){
203 b3994ec5 2003-12-11 devnull warning(nil, "can't fstat %s: %r\n", file);
204 b3994ec5 2003-12-11 devnull goto Rescue;
206 b3994ec5 2003-12-11 devnull nulls = FALSE;
207 b3994ec5 2003-12-11 devnull if(d->qid.type & QTDIR){
208 b3994ec5 2003-12-11 devnull /* this is checked in get() but it's possible the file changed underfoot */
209 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1){
210 b3994ec5 2003-12-11 devnull warning(nil, "%s is a directory; can't read with multiple windows on it\n", file);
211 b3994ec5 2003-12-11 devnull goto Rescue;
213 b3994ec5 2003-12-11 devnull t->w->isdir = TRUE;
214 b3994ec5 2003-12-11 devnull t->w->filemenu = FALSE;
215 b3994ec5 2003-12-11 devnull if(t->file->name[t->file->nname-1] != '/'){
216 b3994ec5 2003-12-11 devnull rp = runemalloc(t->file->nname+1);
217 b3994ec5 2003-12-11 devnull runemove(rp, t->file->name, t->file->nname);
218 b3994ec5 2003-12-11 devnull rp[t->file->nname] = '/';
219 b3994ec5 2003-12-11 devnull winsetname(t->w, rp, t->file->nname+1);
220 b3994ec5 2003-12-11 devnull free(rp);
222 b3994ec5 2003-12-11 devnull dlp = nil;
223 b3994ec5 2003-12-11 devnull ndl = 0;
224 b3994ec5 2003-12-11 devnull dbuf = nil;
225 b3994ec5 2003-12-11 devnull while((n=dirread(fd, &dbuf)) > 0){
226 b3994ec5 2003-12-11 devnull for(i=0; i<n; i++){
227 62c14158 2004-04-08 devnull if(nodotfiles && dbuf[i].name[0] == '.')
228 62c14158 2004-04-08 devnull continue;
229 b3994ec5 2003-12-11 devnull dl = emalloc(sizeof(Dirlist));
230 b3994ec5 2003-12-11 devnull j = strlen(dbuf[i].name);
231 b3994ec5 2003-12-11 devnull tmp = emalloc(j+1+1);
232 b3994ec5 2003-12-11 devnull memmove(tmp, dbuf[i].name, j);
233 b3994ec5 2003-12-11 devnull if(dbuf[i].qid.type & QTDIR)
234 b3994ec5 2003-12-11 devnull tmp[j++] = '/';
235 b3994ec5 2003-12-11 devnull tmp[j] = '\0';
236 b3994ec5 2003-12-11 devnull dl->r = bytetorune(tmp, &dl->nr);
237 b3994ec5 2003-12-11 devnull dl->wid = stringwidth(t->fr.font, tmp);
238 b3994ec5 2003-12-11 devnull free(tmp);
240 b3994ec5 2003-12-11 devnull dlp = realloc(dlp, ndl*sizeof(Dirlist*));
241 b3994ec5 2003-12-11 devnull dlp[ndl-1] = dl;
243 b3994ec5 2003-12-11 devnull free(dbuf);
245 b3994ec5 2003-12-11 devnull qsort(dlp, ndl, sizeof(Dirlist*), dircmp);
246 b3994ec5 2003-12-11 devnull t->w->dlp = dlp;
247 b3994ec5 2003-12-11 devnull t->w->ndl = ndl;
248 b3994ec5 2003-12-11 devnull textcolumnate(t, dlp, ndl);
249 b3994ec5 2003-12-11 devnull q1 = t->file->b.nc;
251 b3994ec5 2003-12-11 devnull t->w->isdir = FALSE;
252 b3994ec5 2003-12-11 devnull t->w->filemenu = TRUE;
253 b3994ec5 2003-12-11 devnull q1 = q0 + fileload(t->file, q0, fd, &nulls);
255 b3994ec5 2003-12-11 devnull if(setqid){
256 b3994ec5 2003-12-11 devnull t->file->dev = d->dev;
257 b3994ec5 2003-12-11 devnull t->file->mtime = d->mtime;
258 b3994ec5 2003-12-11 devnull t->file->qidpath = d->qid.path;
260 b3994ec5 2003-12-11 devnull close(fd);
261 b3994ec5 2003-12-11 devnull rp = fbufalloc();
262 b3994ec5 2003-12-11 devnull for(q=q0; q<q1; q+=n){
263 b3994ec5 2003-12-11 devnull n = q1-q;
264 b3994ec5 2003-12-11 devnull if(n > RBUFSIZE)
265 b3994ec5 2003-12-11 devnull n = RBUFSIZE;
266 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, rp, n);
267 b3994ec5 2003-12-11 devnull if(q < t->org)
268 b3994ec5 2003-12-11 devnull t->org += n;
269 b3994ec5 2003-12-11 devnull else if(q <= t->org+t->fr.nchars)
270 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+n, q-t->org);
271 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull)
274 b3994ec5 2003-12-11 devnull fbuffree(rp);
275 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
276 b3994ec5 2003-12-11 devnull u = t->file->text[i];
277 b3994ec5 2003-12-11 devnull if(u != t){
278 b3994ec5 2003-12-11 devnull if(u->org > u->file->b.nc) /* will be 0 because of reset(), but safety first */
279 b3994ec5 2003-12-11 devnull u->org = 0;
280 b3994ec5 2003-12-11 devnull textresize(u, u->all);
281 b3994ec5 2003-12-11 devnull textbacknl(u, u->org, 0); /* go to beginning of line */
283 b3994ec5 2003-12-11 devnull textsetselect(u, q0, q0);
285 b3994ec5 2003-12-11 devnull if(nulls)
286 b3994ec5 2003-12-11 devnull warning(nil, "%s: NUL bytes elided\n", file);
287 b3994ec5 2003-12-11 devnull free(d);
288 b3994ec5 2003-12-11 devnull return q1-q0;
291 b3994ec5 2003-12-11 devnull close(fd);
292 b3994ec5 2003-12-11 devnull return 0;
296 b3994ec5 2003-12-11 devnull textbsinsert(Text *t, uint q0, Rune *r, uint n, int tofile, int *nrp)
298 b3994ec5 2003-12-11 devnull Rune *bp, *tp, *up;
299 b3994ec5 2003-12-11 devnull int i, initial;
301 b3994ec5 2003-12-11 devnull if(t->what == Tag){ /* can't happen but safety first: mustn't backspace over file name */
303 b3994ec5 2003-12-11 devnull textinsert(t, q0, r, n, tofile);
304 b3994ec5 2003-12-11 devnull *nrp = n;
305 b3994ec5 2003-12-11 devnull return q0;
308 b3994ec5 2003-12-11 devnull for(i=0; i<n; i++)
309 b3994ec5 2003-12-11 devnull if(*bp++ == '\b'){
311 b3994ec5 2003-12-11 devnull initial = 0;
312 b3994ec5 2003-12-11 devnull tp = runemalloc(n);
313 b3994ec5 2003-12-11 devnull runemove(tp, r, i);
314 b3994ec5 2003-12-11 devnull up = tp+i;
315 b3994ec5 2003-12-11 devnull for(; i<n; i++){
316 b3994ec5 2003-12-11 devnull *up = *bp++;
317 b3994ec5 2003-12-11 devnull if(*up == '\b')
318 b3994ec5 2003-12-11 devnull if(up == tp)
319 b3994ec5 2003-12-11 devnull initial++;
325 b3994ec5 2003-12-11 devnull if(initial){
326 b3994ec5 2003-12-11 devnull if(initial > q0)
327 b3994ec5 2003-12-11 devnull initial = q0;
328 b3994ec5 2003-12-11 devnull q0 -= initial;
329 b3994ec5 2003-12-11 devnull textdelete(t, q0, q0+initial, tofile);
331 b3994ec5 2003-12-11 devnull n = up-tp;
332 b3994ec5 2003-12-11 devnull textinsert(t, q0, tp, n, tofile);
333 b3994ec5 2003-12-11 devnull free(tp);
334 b3994ec5 2003-12-11 devnull *nrp = n;
335 b3994ec5 2003-12-11 devnull return q0;
337 b3994ec5 2003-12-11 devnull goto Err;
341 b3994ec5 2003-12-11 devnull textinsert(Text *t, uint q0, Rune *r, uint n, int tofile)
343 b3994ec5 2003-12-11 devnull int c, i;
344 b3994ec5 2003-12-11 devnull Text *u;
346 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
347 b3994ec5 2003-12-11 devnull error("text.insert");
348 b3994ec5 2003-12-11 devnull if(n == 0)
350 b3994ec5 2003-12-11 devnull if(tofile){
351 b3994ec5 2003-12-11 devnull fileinsert(t->file, q0, r, n);
352 b3994ec5 2003-12-11 devnull if(t->what == Body){
353 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
354 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
356 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
357 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
358 b3994ec5 2003-12-11 devnull u = t->file->text[i];
359 b3994ec5 2003-12-11 devnull if(u != t){
360 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
361 b3994ec5 2003-12-11 devnull textinsert(u, q0, r, n, FALSE);
362 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
363 b3994ec5 2003-12-11 devnull textscrdraw(u);
368 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
369 b3994ec5 2003-12-11 devnull t->q1 += n;
370 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
371 b3994ec5 2003-12-11 devnull t->q0 += n;
372 b3994ec5 2003-12-11 devnull if(q0 < t->org)
373 b3994ec5 2003-12-11 devnull t->org += n;
374 b3994ec5 2003-12-11 devnull else if(q0 <= t->org+t->fr.nchars)
375 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, q0-t->org);
376 b3994ec5 2003-12-11 devnull if(t->w){
377 b3994ec5 2003-12-11 devnull c = 'i';
378 b3994ec5 2003-12-11 devnull if(t->what == Body)
379 b3994ec5 2003-12-11 devnull c = 'I';
380 b3994ec5 2003-12-11 devnull if(n <= EVENTSIZE)
381 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 %d %.*S\n", c, q0, q0+n, n, n, r);
383 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q0+n, n);
389 b3994ec5 2003-12-11 devnull textfill(Text *t)
391 b3994ec5 2003-12-11 devnull Rune *rp;
392 b3994ec5 2003-12-11 devnull int i, n, m, nl;
394 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull || t->nofill)
396 b3994ec5 2003-12-11 devnull if(t->ncache > 0){
397 b3994ec5 2003-12-11 devnull if(t->w != nil)
398 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
400 b3994ec5 2003-12-11 devnull textcommit(t, TRUE);
402 b3994ec5 2003-12-11 devnull rp = fbufalloc();
404 b3994ec5 2003-12-11 devnull n = t->file->b.nc-(t->org+t->fr.nchars);
405 b3994ec5 2003-12-11 devnull if(n == 0)
407 b3994ec5 2003-12-11 devnull if(n > 2000) /* educated guess at reasonable amount */
408 b3994ec5 2003-12-11 devnull n = 2000;
409 b3994ec5 2003-12-11 devnull bufread(&t->file->b, t->org+t->fr.nchars, rp, n);
411 b3994ec5 2003-12-11 devnull * it's expensive to frinsert more than we need, so
412 b3994ec5 2003-12-11 devnull * count newlines.
414 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines-t->fr.nlines;
416 b3994ec5 2003-12-11 devnull for(i=0; i<n; ){
417 b3994ec5 2003-12-11 devnull if(rp[i++] == '\n'){
419 b3994ec5 2003-12-11 devnull if(m >= nl)
423 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+i, t->fr.nchars);
424 b3994ec5 2003-12-11 devnull }while(t->fr.lastlinefull == FALSE);
425 b3994ec5 2003-12-11 devnull fbuffree(rp);
429 b3994ec5 2003-12-11 devnull textdelete(Text *t, uint q0, uint q1, int tofile)
431 b3994ec5 2003-12-11 devnull uint n, p0, p1;
432 b3994ec5 2003-12-11 devnull int i, c;
433 b3994ec5 2003-12-11 devnull Text *u;
435 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
436 b3994ec5 2003-12-11 devnull error("text.delete");
437 b3994ec5 2003-12-11 devnull n = q1-q0;
438 b3994ec5 2003-12-11 devnull if(n == 0)
440 b3994ec5 2003-12-11 devnull if(tofile){
441 b3994ec5 2003-12-11 devnull filedelete(t->file, q0, q1);
442 b3994ec5 2003-12-11 devnull if(t->what == Body){
443 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
444 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
446 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
447 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
448 b3994ec5 2003-12-11 devnull u = t->file->text[i];
449 b3994ec5 2003-12-11 devnull if(u != t){
450 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
451 b3994ec5 2003-12-11 devnull textdelete(u, q0, q1, FALSE);
452 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
453 b3994ec5 2003-12-11 devnull textscrdraw(u);
457 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
458 b3994ec5 2003-12-11 devnull t->q0 -= min(n, t->q0-q0);
459 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
460 b3994ec5 2003-12-11 devnull t->q1 -= min(n, t->q1-q0);
461 b3994ec5 2003-12-11 devnull if(q1 <= t->org)
462 b3994ec5 2003-12-11 devnull t->org -= n;
463 b3994ec5 2003-12-11 devnull else if(q0 < t->org+t->fr.nchars){
464 b3994ec5 2003-12-11 devnull p1 = q1 - t->org;
465 b3994ec5 2003-12-11 devnull if(p1 > t->fr.nchars)
466 b3994ec5 2003-12-11 devnull p1 = t->fr.nchars;
467 b3994ec5 2003-12-11 devnull if(q0 < t->org){
468 b3994ec5 2003-12-11 devnull t->org = q0;
471 b3994ec5 2003-12-11 devnull p0 = q0 - t->org;
472 b3994ec5 2003-12-11 devnull frdelete(&t->fr, p0, p1);
473 b3994ec5 2003-12-11 devnull textfill(t);
475 b3994ec5 2003-12-11 devnull if(t->w){
476 b3994ec5 2003-12-11 devnull c = 'd';
477 b3994ec5 2003-12-11 devnull if(t->what == Body)
478 b3994ec5 2003-12-11 devnull c = 'D';
479 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q1);
484 b3994ec5 2003-12-11 devnull textconstrain(Text *t, uint q0, uint q1, uint *p0, uint *p1)
486 b3994ec5 2003-12-11 devnull *p0 = min(q0, t->file->b.nc);
487 b3994ec5 2003-12-11 devnull *p1 = min(q1, t->file->b.nc);
491 b3994ec5 2003-12-11 devnull textreadc(Text *t, uint q)
495 b3994ec5 2003-12-11 devnull if(t->cq0<=q && q<t->cq0+t->ncache)
496 b3994ec5 2003-12-11 devnull r = t->cache[q-t->cq0];
498 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, &r, 1);
499 b3994ec5 2003-12-11 devnull return r;
503 b3994ec5 2003-12-11 devnull textbswidth(Text *t, Rune c)
505 b3994ec5 2003-12-11 devnull uint q, eq;
507 b3994ec5 2003-12-11 devnull int skipping;
509 b3994ec5 2003-12-11 devnull /* there is known to be at least one character to erase */
510 b3994ec5 2003-12-11 devnull if(c == 0x08) /* ^H: erase character */
511 b3994ec5 2003-12-11 devnull return 1;
512 b3994ec5 2003-12-11 devnull q = t->q0;
513 b3994ec5 2003-12-11 devnull skipping = TRUE;
514 b3994ec5 2003-12-11 devnull while(q > 0){
515 b3994ec5 2003-12-11 devnull r = textreadc(t, q-1);
516 b3994ec5 2003-12-11 devnull if(r == '\n'){ /* eat at most one more character */
517 b3994ec5 2003-12-11 devnull if(q == t->q0) /* eat the newline */
521 b3994ec5 2003-12-11 devnull if(c == 0x17){
522 b3994ec5 2003-12-11 devnull eq = isalnum(r);
523 b3994ec5 2003-12-11 devnull if(eq && skipping) /* found one; stop skipping */
524 b3994ec5 2003-12-11 devnull skipping = FALSE;
525 b3994ec5 2003-12-11 devnull else if(!eq && !skipping)
530 b3994ec5 2003-12-11 devnull return t->q0-q;
534 c1973705 2004-02-09 devnull textfilewidth(Text *t, uint q0, int oneelement)
540 c1973705 2004-02-09 devnull while(q > 0){
541 c1973705 2004-02-09 devnull r = textreadc(t, q-1);
542 5a8e63b2 2004-02-29 devnull if(r <= ' ')
544 c1973705 2004-02-09 devnull if(oneelement && r=='/')
548 c1973705 2004-02-09 devnull return q0-q;
552 c1973705 2004-02-09 devnull textcomplete(Text *t)
554 c1973705 2004-02-09 devnull int i, nstr, npath;
556 c1973705 2004-02-09 devnull Rune tmp[200];
557 c1973705 2004-02-09 devnull Rune *str, *path;
558 c1973705 2004-02-09 devnull Rune *rp;
559 c1973705 2004-02-09 devnull Completion *c;
560 c1973705 2004-02-09 devnull char *s, *dirs;
561 c1973705 2004-02-09 devnull Runestr dir;
563 c1973705 2004-02-09 devnull /* control-f: filename completion; works back to white space or / */
564 c1973705 2004-02-09 devnull if(t->q0<t->file->b.nc && textreadc(t, t->q0)>' ') /* must be at end of word */
565 c1973705 2004-02-09 devnull return nil;
566 c1973705 2004-02-09 devnull nstr = textfilewidth(t, t->q0, TRUE);
567 c1973705 2004-02-09 devnull str = runemalloc(nstr);
568 c1973705 2004-02-09 devnull npath = textfilewidth(t, t->q0-nstr, FALSE);
569 c1973705 2004-02-09 devnull path = runemalloc(npath);
571 c1973705 2004-02-09 devnull c = nil;
572 c1973705 2004-02-09 devnull rp = nil;
573 c1973705 2004-02-09 devnull dirs = nil;
575 c1973705 2004-02-09 devnull q = t->q0-nstr;
576 c1973705 2004-02-09 devnull for(i=0; i<nstr; i++)
577 c1973705 2004-02-09 devnull str[i] = textreadc(t, q++);
578 c1973705 2004-02-09 devnull q = t->q0-nstr-npath;
579 c1973705 2004-02-09 devnull for(i=0; i<npath; i++)
580 c1973705 2004-02-09 devnull path[i] = textreadc(t, q++);
581 c1973705 2004-02-09 devnull /* is path rooted? if not, we need to make it relative to window path */
582 c1973705 2004-02-09 devnull if(npath>0 && path[0]=='/')
583 8ad51794 2004-03-25 devnull dir = runestr(path, npath);
585 c1973705 2004-02-09 devnull dir = dirname(t, nil, 0);
586 c1973705 2004-02-09 devnull if(dir.nr + 1 + npath > nelem(tmp)){
587 c1973705 2004-02-09 devnull free(dir.r);
588 c1973705 2004-02-09 devnull goto Return;
590 c1973705 2004-02-09 devnull if(dir.nr == 0){
591 c1973705 2004-02-09 devnull dir.nr = 1;
592 c1973705 2004-02-09 devnull dir.r = runestrdup(Ldot);
594 c1973705 2004-02-09 devnull runemove(tmp, dir.r, dir.nr);
595 c1973705 2004-02-09 devnull tmp[dir.nr] = '/';
596 c1973705 2004-02-09 devnull runemove(tmp+dir.nr+1, path, npath);
597 c1973705 2004-02-09 devnull free(dir.r);
598 c1973705 2004-02-09 devnull dir.r = tmp;
599 c1973705 2004-02-09 devnull dir.nr += 1+npath;
600 c1973705 2004-02-09 devnull dir = cleanrname(dir);
603 c1973705 2004-02-09 devnull s = smprint("%.*S", nstr, str);
604 c1973705 2004-02-09 devnull dirs = smprint("%.*S", dir.nr, dir.r);
605 c1973705 2004-02-09 devnull c = complete(dirs, s);
606 c1973705 2004-02-09 devnull free(s);
607 c1973705 2004-02-09 devnull if(c == nil){
608 c1973705 2004-02-09 devnull warning(nil, "error attempting completion: %r\n");
609 c1973705 2004-02-09 devnull goto Return;
612 c1973705 2004-02-09 devnull if(!c->advance){
613 5a8e63b2 2004-02-29 devnull warning(nil, "%.*S%s%.*S*%s\n",
614 c1973705 2004-02-09 devnull dir.nr, dir.r,
615 c1973705 2004-02-09 devnull dir.nr>0 && dir.r[dir.nr-1]!='/' ? "/" : "",
616 5a8e63b2 2004-02-29 devnull nstr, str,
617 5a8e63b2 2004-02-29 devnull c->nmatch ? "" : ": no matches in:");
618 c1973705 2004-02-09 devnull for(i=0; i<c->nfile; i++)
619 c1973705 2004-02-09 devnull warning(nil, " %s\n", c->filename[i]);
622 c1973705 2004-02-09 devnull if(c->advance)
623 c1973705 2004-02-09 devnull rp = runesmprint("%s", c->string);
625 c1973705 2004-02-09 devnull rp = nil;
627 c1973705 2004-02-09 devnull freecompletion(c);
628 c1973705 2004-02-09 devnull free(dirs);
629 c1973705 2004-02-09 devnull free(str);
630 c1973705 2004-02-09 devnull free(path);
631 c1973705 2004-02-09 devnull return rp;
635 b3994ec5 2003-12-11 devnull texttype(Text *t, Rune r)
637 b3994ec5 2003-12-11 devnull uint q0, q1;
638 b3994ec5 2003-12-11 devnull int nnb, nb, n, i;
640 c1973705 2004-02-09 devnull Rune *rp;
641 b3994ec5 2003-12-11 devnull Text *u;
643 b3994ec5 2003-12-11 devnull if(t->what!=Body && r=='\n')
646 c1973705 2004-02-09 devnull rp = &r;
647 b3994ec5 2003-12-11 devnull switch(r){
648 b3994ec5 2003-12-11 devnull case Kleft:
649 5a8e63b2 2004-02-29 devnull if(t->q0 > 0){
650 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
651 c1973705 2004-02-09 devnull textshow(t, t->q0-1, t->q0-1, TRUE);
654 b3994ec5 2003-12-11 devnull case Kright:
655 5a8e63b2 2004-02-29 devnull if(t->q1 < t->file->b.nc){
656 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
657 c1973705 2004-02-09 devnull textshow(t, t->q1+1, t->q1+1, TRUE);
660 c1973705 2004-02-09 devnull case Kdown:
661 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
662 5a8e63b2 2004-02-29 devnull goto case_Down;
663 c1973705 2004-02-09 devnull case Kpgdown:
664 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
665 5a8e63b2 2004-02-29 devnull case_Down:
666 b3994ec5 2003-12-11 devnull q0 = t->org+frcharofpt(&t->fr, Pt(t->fr.r.min.x, t->fr.r.min.y+n*t->fr.font->height));
667 b3994ec5 2003-12-11 devnull textsetorigin(t, q0, FALSE);
669 b3994ec5 2003-12-11 devnull case Kup:
670 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
671 5a8e63b2 2004-02-29 devnull goto case_Up;
672 c1973705 2004-02-09 devnull case Kpgup:
673 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
674 5a8e63b2 2004-02-29 devnull case_Up:
675 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, n);
676 b3994ec5 2003-12-11 devnull textsetorigin(t, q0, FALSE);
678 5a8e63b2 2004-02-29 devnull case Khome:
679 5a8e63b2 2004-02-29 devnull textshow(t, 0, 0, FALSE);
681 5a8e63b2 2004-02-29 devnull case Kend:
682 5a8e63b2 2004-02-29 devnull if(t->w)
683 5a8e63b2 2004-02-29 devnull wincommit(t->w, t);
685 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
686 5a8e63b2 2004-02-29 devnull textshow(t, t->file->b.nc, t->file->b.nc, FALSE);
689 b3994ec5 2003-12-11 devnull if(t->what == Body){
691 b3994ec5 2003-12-11 devnull filemark(t->file);
693 b3994ec5 2003-12-11 devnull if(t->q1 > t->q0){
694 b3994ec5 2003-12-11 devnull if(t->ncache != 0)
695 b3994ec5 2003-12-11 devnull error("text.type");
696 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
697 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
699 b3994ec5 2003-12-11 devnull textshow(t, t->q0, t->q0, 1);
700 b3994ec5 2003-12-11 devnull switch(r){
701 c1973705 2004-02-09 devnull case 0x06: /* ^F: complete */
702 c1973705 2004-02-09 devnull case Kins:
703 c1973705 2004-02-09 devnull rp = textcomplete(t);
704 c1973705 2004-02-09 devnull if(rp == nil)
706 c1973705 2004-02-09 devnull nr = runestrlen(rp);
707 c1973705 2004-02-09 devnull break; /* fall through to normal insertion case */
708 b3994ec5 2003-12-11 devnull case 0x1B:
709 b3994ec5 2003-12-11 devnull if(t->eq0 != ~0)
710 b3994ec5 2003-12-11 devnull textsetselect(t, t->eq0, t->q0);
711 b3994ec5 2003-12-11 devnull if(t->ncache > 0){
712 b3994ec5 2003-12-11 devnull if(t->w != nil)
713 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
715 b3994ec5 2003-12-11 devnull textcommit(t, TRUE);
718 b3994ec5 2003-12-11 devnull case 0x08: /* ^H: erase character */
719 b3994ec5 2003-12-11 devnull case 0x15: /* ^U: erase line */
720 b3994ec5 2003-12-11 devnull case 0x17: /* ^W: erase word */
721 b3994ec5 2003-12-11 devnull if(t->q0 == 0) /* nothing to erase */
723 b3994ec5 2003-12-11 devnull nnb = textbswidth(t, r);
724 b3994ec5 2003-12-11 devnull q1 = t->q0;
725 b3994ec5 2003-12-11 devnull q0 = q1-nnb;
726 b3994ec5 2003-12-11 devnull /* if selection is at beginning of window, avoid deleting invisible text */
727 b3994ec5 2003-12-11 devnull if(q0 < t->org){
728 b3994ec5 2003-12-11 devnull q0 = t->org;
729 b3994ec5 2003-12-11 devnull nnb = q1-q0;
731 b3994ec5 2003-12-11 devnull if(nnb <= 0)
733 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
734 b3994ec5 2003-12-11 devnull u = t->file->text[i];
735 b3994ec5 2003-12-11 devnull u->nofill = TRUE;
736 b3994ec5 2003-12-11 devnull nb = nnb;
737 b3994ec5 2003-12-11 devnull n = u->ncache;
738 b3994ec5 2003-12-11 devnull if(n > 0){
739 b3994ec5 2003-12-11 devnull if(q1 != u->cq0+n)
740 b3994ec5 2003-12-11 devnull error("text.type backspace");
741 b3994ec5 2003-12-11 devnull if(n > nb)
743 b3994ec5 2003-12-11 devnull u->ncache -= n;
744 b3994ec5 2003-12-11 devnull textdelete(u, q1-n, q1, FALSE);
745 b3994ec5 2003-12-11 devnull nb -= n;
747 b3994ec5 2003-12-11 devnull if(u->eq0==q1 || u->eq0==~0)
748 b3994ec5 2003-12-11 devnull u->eq0 = q0;
749 b3994ec5 2003-12-11 devnull if(nb && u==t)
750 b3994ec5 2003-12-11 devnull textdelete(u, q0, q0+nb, TRUE);
751 b3994ec5 2003-12-11 devnull if(u != t)
752 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
754 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q0);
755 b3994ec5 2003-12-11 devnull u->nofill = FALSE;
757 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++)
758 b3994ec5 2003-12-11 devnull textfill(t->file->text[i]);
760 5a8e63b2 2004-02-29 devnull case '\n':
761 5a8e63b2 2004-02-29 devnull if(t->w->autoindent){
762 5a8e63b2 2004-02-29 devnull /* find beginning of previous line using backspace code */
763 5a8e63b2 2004-02-29 devnull nnb = textbswidth(t, 0x15); /* ^U case */
764 5a8e63b2 2004-02-29 devnull rp = runemalloc(nnb + 1);
766 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
767 5a8e63b2 2004-02-29 devnull for(i=0; i<nnb; i++){
768 5a8e63b2 2004-02-29 devnull r = textreadc(t, t->q0-nnb+i);
769 5a8e63b2 2004-02-29 devnull if(r != ' ' && r != '\t')
771 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
774 5a8e63b2 2004-02-29 devnull break; /* fall through to normal code */
776 b3994ec5 2003-12-11 devnull /* otherwise ordinary character; just insert, typically in caches of all texts */
777 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
778 b3994ec5 2003-12-11 devnull u = t->file->text[i];
779 b3994ec5 2003-12-11 devnull if(u->eq0 == ~0)
780 b3994ec5 2003-12-11 devnull u->eq0 = t->q0;
781 b3994ec5 2003-12-11 devnull if(u->ncache == 0)
782 b3994ec5 2003-12-11 devnull u->cq0 = t->q0;
783 b3994ec5 2003-12-11 devnull else if(t->q0 != u->cq0+u->ncache)
784 b3994ec5 2003-12-11 devnull error("text.type cq1");
785 c1973705 2004-02-09 devnull textinsert(u, t->q0, rp, nr, FALSE);
786 b3994ec5 2003-12-11 devnull if(u != t)
787 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
788 c1973705 2004-02-09 devnull if(u->ncache+nr > u->ncachealloc){
789 c1973705 2004-02-09 devnull u->ncachealloc += 10 + nr;
790 b3994ec5 2003-12-11 devnull u->cache = runerealloc(u->cache, u->ncachealloc);
792 c1973705 2004-02-09 devnull runemove(u->cache+u->ncache, rp, nr);
793 c1973705 2004-02-09 devnull u->ncache += nr;
795 c1973705 2004-02-09 devnull if(rp != &r)
796 c1973705 2004-02-09 devnull free(rp);
797 c1973705 2004-02-09 devnull textsetselect(t, t->q0+nr, t->q0+nr);
798 b3994ec5 2003-12-11 devnull if(r=='\n' && t->w!=nil)
799 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
803 b3994ec5 2003-12-11 devnull textcommit(Text *t, int tofile)
805 b3994ec5 2003-12-11 devnull if(t->ncache == 0)
807 b3994ec5 2003-12-11 devnull if(tofile)
808 b3994ec5 2003-12-11 devnull fileinsert(t->file, t->cq0, t->cache, t->ncache);
809 b3994ec5 2003-12-11 devnull if(t->what == Body){
810 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
811 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
813 b3994ec5 2003-12-11 devnull t->ncache = 0;
816 b3994ec5 2003-12-11 devnull static Text *clicktext;
817 b3994ec5 2003-12-11 devnull static uint clickmsec;
818 b3994ec5 2003-12-11 devnull static Text *selecttext;
819 b3994ec5 2003-12-11 devnull static uint selectq;
822 b3994ec5 2003-12-11 devnull * called from frame library
825 b3994ec5 2003-12-11 devnull framescroll(Frame *f, int dl)
827 b3994ec5 2003-12-11 devnull if(f != &selecttext->fr)
828 b3994ec5 2003-12-11 devnull error("frameselect not right frame");
829 b3994ec5 2003-12-11 devnull textframescroll(selecttext, dl);
833 b3994ec5 2003-12-11 devnull textframescroll(Text *t, int dl)
835 b3994ec5 2003-12-11 devnull uint q0;
837 b3994ec5 2003-12-11 devnull if(dl == 0){
838 b3994ec5 2003-12-11 devnull scrsleep(100);
841 b3994ec5 2003-12-11 devnull if(dl < 0){
842 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, -dl);
843 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p0)
844 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p0, selectq);
846 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p0);
848 b3994ec5 2003-12-11 devnull if(t->org+t->fr.nchars == t->file->b.nc)
850 b3994ec5 2003-12-11 devnull q0 = t->org+frcharofpt(&t->fr, Pt(t->fr.r.min.x, t->fr.r.min.y+dl*t->fr.font->height));
851 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p1)
852 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p1, selectq);
854 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p1);
856 b3994ec5 2003-12-11 devnull textsetorigin(t, q0, TRUE);
861 b3994ec5 2003-12-11 devnull textselect(Text *t)
863 b3994ec5 2003-12-11 devnull uint q0, q1;
864 b3994ec5 2003-12-11 devnull int b, x, y;
865 aba09191 2004-04-16 devnull int state, op;
867 b3994ec5 2003-12-11 devnull selecttext = t;
869 b3994ec5 2003-12-11 devnull * To have double-clicking and chording, we double-click
870 b3994ec5 2003-12-11 devnull * immediately if it might make sense.
872 b3994ec5 2003-12-11 devnull b = mouse->buttons;
873 b3994ec5 2003-12-11 devnull q0 = t->q0;
874 b3994ec5 2003-12-11 devnull q1 = t->q1;
875 b3994ec5 2003-12-11 devnull selectq = t->org+frcharofpt(&t->fr, mouse->xy);
876 b3994ec5 2003-12-11 devnull if(clicktext==t && mouse->msec-clickmsec<500)
877 b3994ec5 2003-12-11 devnull if(q0==q1 && selectq==q0){
878 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
879 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
880 b3994ec5 2003-12-11 devnull flushimage(display, 1);
881 b3994ec5 2003-12-11 devnull x = mouse->xy.x;
882 b3994ec5 2003-12-11 devnull y = mouse->xy.y;
883 b3994ec5 2003-12-11 devnull /* stay here until something interesting happens */
885 b3994ec5 2003-12-11 devnull readmouse(mousectl);
886 b3994ec5 2003-12-11 devnull while(mouse->buttons==b && abs(mouse->xy.x-x)<3 && abs(mouse->xy.y-y)<3);
887 b3994ec5 2003-12-11 devnull mouse->xy.x = x; /* in case we're calling frselect */
888 b3994ec5 2003-12-11 devnull mouse->xy.y = y;
889 b3994ec5 2003-12-11 devnull q0 = t->q0; /* may have changed */
890 b3994ec5 2003-12-11 devnull q1 = t->q1;
891 b3994ec5 2003-12-11 devnull selectq = q0;
893 b3994ec5 2003-12-11 devnull if(mouse->buttons == b){
894 b3994ec5 2003-12-11 devnull t->fr.scroll = framescroll;
895 b3994ec5 2003-12-11 devnull frselect(&t->fr, mousectl);
896 b3994ec5 2003-12-11 devnull /* horrible botch: while asleep, may have lost selection altogether */
897 b3994ec5 2003-12-11 devnull if(selectq > t->file->b.nc)
898 b3994ec5 2003-12-11 devnull selectq = t->org + t->fr.p0;
899 be22ae2d 2004-03-26 devnull t->fr.scroll = 0;
900 b3994ec5 2003-12-11 devnull if(selectq < t->org)
901 b3994ec5 2003-12-11 devnull q0 = selectq;
903 b3994ec5 2003-12-11 devnull q0 = t->org + t->fr.p0;
904 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.nchars)
905 b3994ec5 2003-12-11 devnull q1 = selectq;
907 b3994ec5 2003-12-11 devnull q1 = t->org+t->fr.p1;
909 b3994ec5 2003-12-11 devnull if(q0 == q1){
910 b3994ec5 2003-12-11 devnull if(q0==t->q0 && clicktext==t && mouse->msec-clickmsec<500){
911 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
912 b3994ec5 2003-12-11 devnull clicktext = nil;
914 b3994ec5 2003-12-11 devnull clicktext = t;
915 b3994ec5 2003-12-11 devnull clickmsec = mouse->msec;
918 b3994ec5 2003-12-11 devnull clicktext = nil;
919 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
920 b3994ec5 2003-12-11 devnull flushimage(display, 1);
921 aba09191 2004-04-16 devnull state = op = 0; /* undo when possible; +1 for cut, -1 for paste */
922 b3994ec5 2003-12-11 devnull while(mouse->buttons){
923 b3994ec5 2003-12-11 devnull mouse->msec = 0;
924 b3994ec5 2003-12-11 devnull b = mouse->buttons;
925 b3994ec5 2003-12-11 devnull if(b & 6){
926 aba09191 2004-04-16 devnull if(state==0 && op==0 && t->what==Body){
928 b3994ec5 2003-12-11 devnull filemark(t->w->body.file);
930 b3994ec5 2003-12-11 devnull if(b & 2){
931 b3994ec5 2003-12-11 devnull if(state==-1 && t->what==Body){
932 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
933 b3994ec5 2003-12-11 devnull textsetselect(t, q0, t->q0);
934 b3994ec5 2003-12-11 devnull state = 0;
935 aba09191 2004-04-16 devnull }else if(state != 1 && op != -1){
936 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
937 aba09191 2004-04-16 devnull op = state = 1;
940 b3994ec5 2003-12-11 devnull if(state==1 && t->what==Body){
941 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
942 b3994ec5 2003-12-11 devnull textsetselect(t, q0, t->q1);
943 b3994ec5 2003-12-11 devnull state = 0;
944 aba09191 2004-04-16 devnull }else if(state != -1 && op != 1){
945 b3994ec5 2003-12-11 devnull paste(t, t, nil, TRUE, FALSE, nil, 0);
946 aba09191 2004-04-16 devnull op = state = -1;
949 b3994ec5 2003-12-11 devnull textscrdraw(t);
950 b3994ec5 2003-12-11 devnull clearmouse();
952 b3994ec5 2003-12-11 devnull flushimage(display, 1);
953 b3994ec5 2003-12-11 devnull while(mouse->buttons == b)
954 b3994ec5 2003-12-11 devnull readmouse(mousectl);
955 b3994ec5 2003-12-11 devnull clicktext = nil;
960 b3994ec5 2003-12-11 devnull textshow(Text *t, uint q0, uint q1, int doselect)
966 b3994ec5 2003-12-11 devnull if(t->what != Body)
968 b3994ec5 2003-12-11 devnull if(t->w!=nil && t->fr.maxlines==0)
969 b3994ec5 2003-12-11 devnull colgrow(t->col, t->w, 1);
970 b3994ec5 2003-12-11 devnull if(doselect)
971 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
972 b3994ec5 2003-12-11 devnull qe = t->org+t->fr.nchars;
973 b3994ec5 2003-12-11 devnull if(t->org<=q0 && (q0<qe || (q0==qe && qe==t->file->b.nc+t->ncache)))
974 b3994ec5 2003-12-11 devnull textscrdraw(t);
976 b3994ec5 2003-12-11 devnull if(t->w->nopen[QWevent] > 0)
977 b3994ec5 2003-12-11 devnull nl = 3*t->fr.maxlines/4;
979 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines/4;
980 b3994ec5 2003-12-11 devnull q = textbacknl(t, q0, nl);
981 b3994ec5 2003-12-11 devnull /* avoid going backwards if trying to go forwards - long lines! */
982 b3994ec5 2003-12-11 devnull if(!(q0>t->org && q<t->org))
983 b3994ec5 2003-12-11 devnull textsetorigin(t, q, TRUE);
984 b3994ec5 2003-12-11 devnull while(q0 > t->org+t->fr.nchars)
985 b3994ec5 2003-12-11 devnull textsetorigin(t, t->org+1, FALSE);
991 b3994ec5 2003-12-11 devnull region(int a, int b)
993 b3994ec5 2003-12-11 devnull if(a < b)
994 b3994ec5 2003-12-11 devnull return -1;
995 b3994ec5 2003-12-11 devnull if(a == b)
996 b3994ec5 2003-12-11 devnull return 0;
997 b3994ec5 2003-12-11 devnull return 1;
1001 b3994ec5 2003-12-11 devnull selrestore(Frame *f, Point pt0, uint p0, uint p1)
1003 b3994ec5 2003-12-11 devnull if(p1<=f->p0 || p0>=f->p1){
1004 b3994ec5 2003-12-11 devnull /* no overlap */
1005 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[BACK], f->cols[TEXT]);
1006 b3994ec5 2003-12-11 devnull return;
1008 b3994ec5 2003-12-11 devnull if(p0>=f->p0 && p1<=f->p1){
1009 b3994ec5 2003-12-11 devnull /* entirely inside */
1010 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1011 b3994ec5 2003-12-11 devnull return;
1014 b3994ec5 2003-12-11 devnull /* they now are known to overlap */
1016 b3994ec5 2003-12-11 devnull /* before selection */
1017 b3994ec5 2003-12-11 devnull if(p0 < f->p0){
1018 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, f->p0, f->cols[BACK], f->cols[TEXT]);
1019 b3994ec5 2003-12-11 devnull p0 = f->p0;
1020 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1022 b3994ec5 2003-12-11 devnull /* after selection */
1023 b3994ec5 2003-12-11 devnull if(p1 > f->p1){
1024 b3994ec5 2003-12-11 devnull frdrawsel0(f, frptofchar(f, f->p1), f->p1, p1, f->cols[BACK], f->cols[TEXT]);
1025 b3994ec5 2003-12-11 devnull p1 = f->p1;
1027 b3994ec5 2003-12-11 devnull /* inside selection */
1028 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1032 b3994ec5 2003-12-11 devnull textsetselect(Text *t, uint q0, uint q1)
1034 b3994ec5 2003-12-11 devnull int p0, p1;
1036 b3994ec5 2003-12-11 devnull /* t->fr.p0 and t->fr.p1 are always right; t->q0 and t->q1 may be off */
1037 b3994ec5 2003-12-11 devnull t->q0 = q0;
1038 b3994ec5 2003-12-11 devnull t->q1 = q1;
1039 b3994ec5 2003-12-11 devnull /* compute desired p0,p1 from q0,q1 */
1040 b3994ec5 2003-12-11 devnull p0 = q0-t->org;
1041 b3994ec5 2003-12-11 devnull p1 = q1-t->org;
1042 b3994ec5 2003-12-11 devnull if(p0 < 0)
1043 b3994ec5 2003-12-11 devnull p0 = 0;
1044 b3994ec5 2003-12-11 devnull if(p1 < 0)
1045 b3994ec5 2003-12-11 devnull p1 = 0;
1046 b3994ec5 2003-12-11 devnull if(p0 > t->fr.nchars)
1047 b3994ec5 2003-12-11 devnull p0 = t->fr.nchars;
1048 b3994ec5 2003-12-11 devnull if(p1 > t->fr.nchars)
1049 b3994ec5 2003-12-11 devnull p1 = t->fr.nchars;
1050 b3994ec5 2003-12-11 devnull if(p0==t->fr.p0 && p1==t->fr.p1)
1051 b3994ec5 2003-12-11 devnull return;
1052 b3994ec5 2003-12-11 devnull /* screen disagrees with desired selection */
1053 b3994ec5 2003-12-11 devnull if(t->fr.p1<=p0 || p1<=t->fr.p0 || p0==p1 || t->fr.p1==t->fr.p0){
1054 b3994ec5 2003-12-11 devnull /* no overlap or too easy to bother trying */
1055 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, t->fr.p1, 0);
1056 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, p1, 1);
1057 b3994ec5 2003-12-11 devnull goto Return;
1059 b3994ec5 2003-12-11 devnull /* overlap; avoid unnecessary painting */
1060 b3994ec5 2003-12-11 devnull if(p0 < t->fr.p0){
1061 b3994ec5 2003-12-11 devnull /* extend selection backwards */
1062 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, t->fr.p0, 1);
1063 b3994ec5 2003-12-11 devnull }else if(p0 > t->fr.p0){
1064 b3994ec5 2003-12-11 devnull /* trim first part of selection */
1065 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, p0, 0);
1067 b3994ec5 2003-12-11 devnull if(p1 > t->fr.p1){
1068 b3994ec5 2003-12-11 devnull /* extend selection forwards */
1069 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1), t->fr.p1, p1, 1);
1070 b3994ec5 2003-12-11 devnull }else if(p1 < t->fr.p1){
1071 b3994ec5 2003-12-11 devnull /* trim last part of selection */
1072 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p1), p1, t->fr.p1, 0);
1075 b3994ec5 2003-12-11 devnull Return:
1076 b3994ec5 2003-12-11 devnull t->fr.p0 = p0;
1077 b3994ec5 2003-12-11 devnull t->fr.p1 = p1;
1081 b3994ec5 2003-12-11 devnull * Release the button in less than DELAY ms and it's considered a null selection
1082 b3994ec5 2003-12-11 devnull * if the mouse hardly moved, regardless of whether it crossed a char boundary.
1085 b3994ec5 2003-12-11 devnull DELAY = 2,
1086 b3994ec5 2003-12-11 devnull MINMOVE = 4,
1090 b3994ec5 2003-12-11 devnull xselect(Frame *f, Mousectl *mc, Image *col, uint *p1p) /* when called, button is down */
1092 b3994ec5 2003-12-11 devnull uint p0, p1, q, tmp;
1093 b3994ec5 2003-12-11 devnull ulong msec;
1094 b3994ec5 2003-12-11 devnull Point mp, pt0, pt1, qt;
1095 b3994ec5 2003-12-11 devnull int reg, b;
1097 b3994ec5 2003-12-11 devnull mp = mc->m.xy;
1098 b3994ec5 2003-12-11 devnull b = mc->m.buttons;
1099 b3994ec5 2003-12-11 devnull msec = mc->m.msec;
1101 b3994ec5 2003-12-11 devnull /* remove tick */
1102 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1103 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 0);
1104 b3994ec5 2003-12-11 devnull p0 = p1 = frcharofpt(f, mp);
1105 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1106 b3994ec5 2003-12-11 devnull pt1 = frptofchar(f, p1);
1107 b3994ec5 2003-12-11 devnull reg = 0;
1108 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1110 b3994ec5 2003-12-11 devnull q = frcharofpt(f, mc->m.xy);
1111 b3994ec5 2003-12-11 devnull if(p1 != q){
1112 b3994ec5 2003-12-11 devnull if(p0 == p1)
1113 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1114 b3994ec5 2003-12-11 devnull if(reg != region(q, p0)){ /* crossed starting point; reset */
1115 b3994ec5 2003-12-11 devnull if(reg > 0)
1116 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1117 b3994ec5 2003-12-11 devnull else if(reg < 0)
1118 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1119 b3994ec5 2003-12-11 devnull p1 = p0;
1120 b3994ec5 2003-12-11 devnull pt1 = pt0;
1121 b3994ec5 2003-12-11 devnull reg = region(q, p0);
1122 b3994ec5 2003-12-11 devnull if(reg == 0)
1123 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, col, display->white);
1125 b3994ec5 2003-12-11 devnull qt = frptofchar(f, q);
1126 b3994ec5 2003-12-11 devnull if(reg > 0){
1127 b3994ec5 2003-12-11 devnull if(q > p1)
1128 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt1, p1, q, col, display->white);
1130 b3994ec5 2003-12-11 devnull else if(q < p1)
1131 b3994ec5 2003-12-11 devnull selrestore(f, qt, q, p1);
1132 b3994ec5 2003-12-11 devnull }else if(reg < 0){
1133 b3994ec5 2003-12-11 devnull if(q > p1)
1134 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, q);
1136 b3994ec5 2003-12-11 devnull frdrawsel0(f, qt, q, p1, col, display->white);
1138 b3994ec5 2003-12-11 devnull p1 = q;
1139 b3994ec5 2003-12-11 devnull pt1 = qt;
1141 b3994ec5 2003-12-11 devnull if(p0 == p1)
1142 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1143 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1144 b3994ec5 2003-12-11 devnull readmouse(mc);
1145 b3994ec5 2003-12-11 devnull }while(mc->m.buttons == b);
1146 b3994ec5 2003-12-11 devnull if(mc->m.msec-msec < DELAY && p0!=p1
1147 b3994ec5 2003-12-11 devnull && abs(mp.x-mc->m.xy.x)<MINMOVE
1148 b3994ec5 2003-12-11 devnull && abs(mp.y-mc->m.xy.y)<MINMOVE) {
1149 b3994ec5 2003-12-11 devnull if(reg > 0)
1150 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1151 b3994ec5 2003-12-11 devnull else if(reg < 0)
1152 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1153 b3994ec5 2003-12-11 devnull p1 = p0;
1155 b3994ec5 2003-12-11 devnull if(p1 < p0){
1156 b3994ec5 2003-12-11 devnull tmp = p0;
1157 b3994ec5 2003-12-11 devnull p0 = p1;
1158 b3994ec5 2003-12-11 devnull p1 = tmp;
1160 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1161 b3994ec5 2003-12-11 devnull if(p0 == p1)
1162 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1163 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1164 b3994ec5 2003-12-11 devnull /* restore tick */
1165 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1166 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 1);
1167 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1168 b3994ec5 2003-12-11 devnull *p1p = p1;
1169 b3994ec5 2003-12-11 devnull return p0;
1173 b3994ec5 2003-12-11 devnull textselect23(Text *t, uint *q0, uint *q1, Image *high, int mask)
1175 b3994ec5 2003-12-11 devnull uint p0, p1;
1176 b3994ec5 2003-12-11 devnull int buts;
1178 b3994ec5 2003-12-11 devnull p0 = xselect(&t->fr, mousectl, high, &p1);
1179 b3994ec5 2003-12-11 devnull buts = mousectl->m.buttons;
1180 b3994ec5 2003-12-11 devnull if((buts & mask) == 0){
1181 b3994ec5 2003-12-11 devnull *q0 = p0+t->org;
1182 b3994ec5 2003-12-11 devnull *q1 = p1+t->org;
1185 b3994ec5 2003-12-11 devnull while(mousectl->m.buttons)
1186 b3994ec5 2003-12-11 devnull readmouse(mousectl);
1187 b3994ec5 2003-12-11 devnull return buts;
1191 b3994ec5 2003-12-11 devnull textselect2(Text *t, uint *q0, uint *q1, Text **tp)
1193 b3994ec5 2003-12-11 devnull int buts;
1195 b3994ec5 2003-12-11 devnull *tp = nil;
1196 b3994ec5 2003-12-11 devnull buts = textselect23(t, q0, q1, but2col, 4);
1197 b3994ec5 2003-12-11 devnull if(buts & 4)
1198 b3994ec5 2003-12-11 devnull return 0;
1199 b3994ec5 2003-12-11 devnull if(buts & 1){ /* pick up argument */
1200 b3994ec5 2003-12-11 devnull *tp = argtext;
1201 b3994ec5 2003-12-11 devnull return 1;
1203 b3994ec5 2003-12-11 devnull return 1;
1207 b3994ec5 2003-12-11 devnull textselect3(Text *t, uint *q0, uint *q1)
1211 b3994ec5 2003-12-11 devnull h = (textselect23(t, q0, q1, but3col, 1|2) == 0);
1212 b3994ec5 2003-12-11 devnull return h;
1215 b3994ec5 2003-12-11 devnull static Rune left1[] = { '{', '[', '(', '<', 0xab, 0 };
1216 b3994ec5 2003-12-11 devnull static Rune right1[] = { '}', ']', ')', '>', 0xbb, 0 };
1217 b3994ec5 2003-12-11 devnull static Rune left2[] = { '\n', 0 };
1218 b3994ec5 2003-12-11 devnull static Rune left3[] = { '\'', '"', '`', 0 };
1221 b3994ec5 2003-12-11 devnull Rune *left[] = {
1228 b3994ec5 2003-12-11 devnull Rune *right[] = {
1229 b3994ec5 2003-12-11 devnull right1,
1236 b3994ec5 2003-12-11 devnull textdoubleclick(Text *t, uint *q0, uint *q1)
1238 b3994ec5 2003-12-11 devnull int c, i;
1239 b3994ec5 2003-12-11 devnull Rune *r, *l, *p;
1240 b3994ec5 2003-12-11 devnull uint q;
1242 b3994ec5 2003-12-11 devnull for(i=0; left[i]!=nil; i++){
1243 b3994ec5 2003-12-11 devnull q = *q0;
1244 b3994ec5 2003-12-11 devnull l = left[i];
1245 b3994ec5 2003-12-11 devnull r = right[i];
1246 b3994ec5 2003-12-11 devnull /* try matching character to left, looking right */
1247 b3994ec5 2003-12-11 devnull if(q == 0)
1248 b3994ec5 2003-12-11 devnull c = '\n';
1250 b3994ec5 2003-12-11 devnull c = textreadc(t, q-1);
1251 b3994ec5 2003-12-11 devnull p = runestrchr(l, c);
1252 b3994ec5 2003-12-11 devnull if(p != nil){
1253 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, r[p-l], 1, &q))
1254 b3994ec5 2003-12-11 devnull *q1 = q-(c!='\n');
1255 b3994ec5 2003-12-11 devnull return;
1257 b3994ec5 2003-12-11 devnull /* try matching character to right, looking left */
1258 b3994ec5 2003-12-11 devnull if(q == t->file->b.nc)
1259 b3994ec5 2003-12-11 devnull c = '\n';
1261 b3994ec5 2003-12-11 devnull c = textreadc(t, q);
1262 b3994ec5 2003-12-11 devnull p = runestrchr(r, c);
1263 b3994ec5 2003-12-11 devnull if(p != nil){
1264 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, l[p-r], -1, &q)){
1265 b3994ec5 2003-12-11 devnull *q1 = *q0+(*q0<t->file->b.nc && c=='\n');
1266 b3994ec5 2003-12-11 devnull *q0 = q;
1267 b3994ec5 2003-12-11 devnull if(c!='\n' || q!=0 || textreadc(t, 0)=='\n')
1268 b3994ec5 2003-12-11 devnull (*q0)++;
1270 b3994ec5 2003-12-11 devnull return;
1273 b3994ec5 2003-12-11 devnull /* try filling out word to right */
1274 b3994ec5 2003-12-11 devnull while(*q1<t->file->b.nc && isalnum(textreadc(t, *q1)))
1275 b3994ec5 2003-12-11 devnull (*q1)++;
1276 b3994ec5 2003-12-11 devnull /* try filling out word to left */
1277 b3994ec5 2003-12-11 devnull while(*q0>0 && isalnum(textreadc(t, *q0-1)))
1278 b3994ec5 2003-12-11 devnull (*q0)--;
1282 b3994ec5 2003-12-11 devnull textclickmatch(Text *t, int cl, int cr, int dir, uint *q)
1284 b3994ec5 2003-12-11 devnull Rune c;
1285 b3994ec5 2003-12-11 devnull int nest;
1287 b3994ec5 2003-12-11 devnull nest = 1;
1288 b3994ec5 2003-12-11 devnull for(;;){
1289 b3994ec5 2003-12-11 devnull if(dir > 0){
1290 b3994ec5 2003-12-11 devnull if(*q == t->file->b.nc)
1292 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1293 b3994ec5 2003-12-11 devnull (*q)++;
1295 b3994ec5 2003-12-11 devnull if(*q == 0)
1297 b3994ec5 2003-12-11 devnull (*q)--;
1298 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1300 b3994ec5 2003-12-11 devnull if(c == cr){
1301 b3994ec5 2003-12-11 devnull if(--nest==0)
1302 b3994ec5 2003-12-11 devnull return 1;
1303 b3994ec5 2003-12-11 devnull }else if(c == cl)
1304 b3994ec5 2003-12-11 devnull nest++;
1306 b3994ec5 2003-12-11 devnull return cl=='\n' && nest==1;
1310 b3994ec5 2003-12-11 devnull textbacknl(Text *t, uint p, uint n)
1312 b3994ec5 2003-12-11 devnull int i, j;
1314 b3994ec5 2003-12-11 devnull /* look for start of this line if n==0 */
1315 b3994ec5 2003-12-11 devnull if(n==0 && p>0 && textreadc(t, p-1)!='\n')
1318 b3994ec5 2003-12-11 devnull while(i-->0 && p>0){
1319 b3994ec5 2003-12-11 devnull --p; /* it's at a newline now; back over it */
1320 b3994ec5 2003-12-11 devnull if(p == 0)
1322 b3994ec5 2003-12-11 devnull /* at 128 chars, call it a line anyway */
1323 b3994ec5 2003-12-11 devnull for(j=128; --j>0 && p>0; p--)
1324 b3994ec5 2003-12-11 devnull if(textreadc(t, p-1)=='\n')
1327 b3994ec5 2003-12-11 devnull return p;
1331 b3994ec5 2003-12-11 devnull textsetorigin(Text *t, uint org, int exact)
1333 b3994ec5 2003-12-11 devnull int i, a, fixup;
1334 b3994ec5 2003-12-11 devnull Rune *r;
1335 b3994ec5 2003-12-11 devnull uint n;
1337 b3994ec5 2003-12-11 devnull if(org>0 && !exact){
1338 b3994ec5 2003-12-11 devnull /* org is an estimate of the char posn; find a newline */
1339 b3994ec5 2003-12-11 devnull /* don't try harder than 256 chars */
1340 b3994ec5 2003-12-11 devnull for(i=0; i<256 && org<t->file->b.nc; i++){
1341 b3994ec5 2003-12-11 devnull if(textreadc(t, org) == '\n'){
1348 b3994ec5 2003-12-11 devnull a = org-t->org;
1349 b3994ec5 2003-12-11 devnull fixup = 0;
1350 b3994ec5 2003-12-11 devnull if(a>=0 && a<t->fr.nchars){
1351 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, a);
1352 b3994ec5 2003-12-11 devnull fixup = 1; /* frdelete can leave end of last line in wrong selection mode; it doesn't know what follows */
1354 b3994ec5 2003-12-11 devnull else if(a<0 && -a<t->fr.nchars){
1355 b3994ec5 2003-12-11 devnull n = t->org - org;
1356 b3994ec5 2003-12-11 devnull r = runemalloc(n);
1357 b3994ec5 2003-12-11 devnull bufread(&t->file->b, org, r, n);
1358 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, 0);
1359 b3994ec5 2003-12-11 devnull free(r);
1361 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1362 b3994ec5 2003-12-11 devnull t->org = org;
1363 b3994ec5 2003-12-11 devnull textfill(t);
1364 b3994ec5 2003-12-11 devnull textscrdraw(t);
1365 b3994ec5 2003-12-11 devnull textsetselect(t, t->q0, t->q1);
1366 b3994ec5 2003-12-11 devnull if(fixup && t->fr.p1 > t->fr.p0)
1367 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1-1), t->fr.p1-1, t->fr.p1, 1);
1371 b3994ec5 2003-12-11 devnull textreset(Text *t)
1373 b3994ec5 2003-12-11 devnull t->file->seq = 0;
1374 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
1375 b3994ec5 2003-12-11 devnull /* do t->delete(0, t->nc, TRUE) without building backup stuff */
1376 b3994ec5 2003-12-11 devnull textsetselect(t, t->org, t->org);
1377 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1378 b3994ec5 2003-12-11 devnull t->org = 0;
1379 b3994ec5 2003-12-11 devnull t->q0 = 0;
1380 b3994ec5 2003-12-11 devnull t->q1 = 0;
1381 b3994ec5 2003-12-11 devnull filereset(t->file);
1382 b3994ec5 2003-12-11 devnull bufreset(&t->file->b);
