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 b3994ec5 2003-12-11 devnull dl = emalloc(sizeof(Dirlist));
228 b3994ec5 2003-12-11 devnull j = strlen(dbuf[i].name);
229 b3994ec5 2003-12-11 devnull tmp = emalloc(j+1+1);
230 b3994ec5 2003-12-11 devnull memmove(tmp, dbuf[i].name, j);
231 b3994ec5 2003-12-11 devnull if(dbuf[i].qid.type & QTDIR)
232 b3994ec5 2003-12-11 devnull tmp[j++] = '/';
233 b3994ec5 2003-12-11 devnull tmp[j] = '\0';
234 b3994ec5 2003-12-11 devnull dl->r = bytetorune(tmp, &dl->nr);
235 b3994ec5 2003-12-11 devnull dl->wid = stringwidth(t->fr.font, tmp);
236 b3994ec5 2003-12-11 devnull free(tmp);
238 b3994ec5 2003-12-11 devnull dlp = realloc(dlp, ndl*sizeof(Dirlist*));
239 b3994ec5 2003-12-11 devnull dlp[ndl-1] = dl;
241 b3994ec5 2003-12-11 devnull free(dbuf);
243 b3994ec5 2003-12-11 devnull qsort(dlp, ndl, sizeof(Dirlist*), dircmp);
244 b3994ec5 2003-12-11 devnull t->w->dlp = dlp;
245 b3994ec5 2003-12-11 devnull t->w->ndl = ndl;
246 b3994ec5 2003-12-11 devnull textcolumnate(t, dlp, ndl);
247 b3994ec5 2003-12-11 devnull q1 = t->file->b.nc;
249 b3994ec5 2003-12-11 devnull t->w->isdir = FALSE;
250 b3994ec5 2003-12-11 devnull t->w->filemenu = TRUE;
251 b3994ec5 2003-12-11 devnull q1 = q0 + fileload(t->file, q0, fd, &nulls);
253 b3994ec5 2003-12-11 devnull if(setqid){
254 b3994ec5 2003-12-11 devnull t->file->dev = d->dev;
255 b3994ec5 2003-12-11 devnull t->file->mtime = d->mtime;
256 b3994ec5 2003-12-11 devnull t->file->qidpath = d->qid.path;
258 b3994ec5 2003-12-11 devnull close(fd);
259 b3994ec5 2003-12-11 devnull rp = fbufalloc();
260 b3994ec5 2003-12-11 devnull for(q=q0; q<q1; q+=n){
261 b3994ec5 2003-12-11 devnull n = q1-q;
262 b3994ec5 2003-12-11 devnull if(n > RBUFSIZE)
263 b3994ec5 2003-12-11 devnull n = RBUFSIZE;
264 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, rp, n);
265 b3994ec5 2003-12-11 devnull if(q < t->org)
266 b3994ec5 2003-12-11 devnull t->org += n;
267 b3994ec5 2003-12-11 devnull else if(q <= t->org+t->fr.nchars)
268 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+n, q-t->org);
269 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull)
272 b3994ec5 2003-12-11 devnull fbuffree(rp);
273 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
274 b3994ec5 2003-12-11 devnull u = t->file->text[i];
275 b3994ec5 2003-12-11 devnull if(u != t){
276 b3994ec5 2003-12-11 devnull if(u->org > u->file->b.nc) /* will be 0 because of reset(), but safety first */
277 b3994ec5 2003-12-11 devnull u->org = 0;
278 b3994ec5 2003-12-11 devnull textresize(u, u->all);
279 b3994ec5 2003-12-11 devnull textbacknl(u, u->org, 0); /* go to beginning of line */
281 b3994ec5 2003-12-11 devnull textsetselect(u, q0, q0);
283 b3994ec5 2003-12-11 devnull if(nulls)
284 b3994ec5 2003-12-11 devnull warning(nil, "%s: NUL bytes elided\n", file);
285 b3994ec5 2003-12-11 devnull free(d);
286 b3994ec5 2003-12-11 devnull return q1-q0;
289 b3994ec5 2003-12-11 devnull close(fd);
290 b3994ec5 2003-12-11 devnull return 0;
294 b3994ec5 2003-12-11 devnull textbsinsert(Text *t, uint q0, Rune *r, uint n, int tofile, int *nrp)
296 b3994ec5 2003-12-11 devnull Rune *bp, *tp, *up;
297 b3994ec5 2003-12-11 devnull int i, initial;
299 b3994ec5 2003-12-11 devnull if(t->what == Tag){ /* can't happen but safety first: mustn't backspace over file name */
301 b3994ec5 2003-12-11 devnull textinsert(t, q0, r, n, tofile);
302 b3994ec5 2003-12-11 devnull *nrp = n;
303 b3994ec5 2003-12-11 devnull return q0;
306 b3994ec5 2003-12-11 devnull for(i=0; i<n; i++)
307 b3994ec5 2003-12-11 devnull if(*bp++ == '\b'){
309 b3994ec5 2003-12-11 devnull initial = 0;
310 b3994ec5 2003-12-11 devnull tp = runemalloc(n);
311 b3994ec5 2003-12-11 devnull runemove(tp, r, i);
312 b3994ec5 2003-12-11 devnull up = tp+i;
313 b3994ec5 2003-12-11 devnull for(; i<n; i++){
314 b3994ec5 2003-12-11 devnull *up = *bp++;
315 b3994ec5 2003-12-11 devnull if(*up == '\b')
316 b3994ec5 2003-12-11 devnull if(up == tp)
317 b3994ec5 2003-12-11 devnull initial++;
323 b3994ec5 2003-12-11 devnull if(initial){
324 b3994ec5 2003-12-11 devnull if(initial > q0)
325 b3994ec5 2003-12-11 devnull initial = q0;
326 b3994ec5 2003-12-11 devnull q0 -= initial;
327 b3994ec5 2003-12-11 devnull textdelete(t, q0, q0+initial, tofile);
329 b3994ec5 2003-12-11 devnull n = up-tp;
330 b3994ec5 2003-12-11 devnull textinsert(t, q0, tp, n, tofile);
331 b3994ec5 2003-12-11 devnull free(tp);
332 b3994ec5 2003-12-11 devnull *nrp = n;
333 b3994ec5 2003-12-11 devnull return q0;
335 b3994ec5 2003-12-11 devnull goto Err;
339 b3994ec5 2003-12-11 devnull textinsert(Text *t, uint q0, Rune *r, uint n, int tofile)
341 b3994ec5 2003-12-11 devnull int c, i;
342 b3994ec5 2003-12-11 devnull Text *u;
344 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
345 b3994ec5 2003-12-11 devnull error("text.insert");
346 b3994ec5 2003-12-11 devnull if(n == 0)
348 b3994ec5 2003-12-11 devnull if(tofile){
349 b3994ec5 2003-12-11 devnull fileinsert(t->file, q0, r, n);
350 b3994ec5 2003-12-11 devnull if(t->what == Body){
351 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
352 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
354 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
355 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
356 b3994ec5 2003-12-11 devnull u = t->file->text[i];
357 b3994ec5 2003-12-11 devnull if(u != t){
358 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
359 b3994ec5 2003-12-11 devnull textinsert(u, q0, r, n, FALSE);
360 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
361 b3994ec5 2003-12-11 devnull textscrdraw(u);
366 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
367 b3994ec5 2003-12-11 devnull t->q1 += n;
368 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
369 b3994ec5 2003-12-11 devnull t->q0 += n;
370 b3994ec5 2003-12-11 devnull if(q0 < t->org)
371 b3994ec5 2003-12-11 devnull t->org += n;
372 b3994ec5 2003-12-11 devnull else if(q0 <= t->org+t->fr.nchars)
373 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, q0-t->org);
374 b3994ec5 2003-12-11 devnull if(t->w){
375 b3994ec5 2003-12-11 devnull c = 'i';
376 b3994ec5 2003-12-11 devnull if(t->what == Body)
377 b3994ec5 2003-12-11 devnull c = 'I';
378 b3994ec5 2003-12-11 devnull if(n <= EVENTSIZE)
379 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 %d %.*S\n", c, q0, q0+n, n, n, r);
381 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q0+n, n);
387 b3994ec5 2003-12-11 devnull textfill(Text *t)
389 b3994ec5 2003-12-11 devnull Rune *rp;
390 b3994ec5 2003-12-11 devnull int i, n, m, nl;
392 b3994ec5 2003-12-11 devnull if(t->fr.lastlinefull || t->nofill)
394 b3994ec5 2003-12-11 devnull if(t->ncache > 0){
395 b3994ec5 2003-12-11 devnull if(t->w != nil)
396 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
398 b3994ec5 2003-12-11 devnull textcommit(t, TRUE);
400 b3994ec5 2003-12-11 devnull rp = fbufalloc();
402 b3994ec5 2003-12-11 devnull n = t->file->b.nc-(t->org+t->fr.nchars);
403 b3994ec5 2003-12-11 devnull if(n == 0)
405 b3994ec5 2003-12-11 devnull if(n > 2000) /* educated guess at reasonable amount */
406 b3994ec5 2003-12-11 devnull n = 2000;
407 b3994ec5 2003-12-11 devnull bufread(&t->file->b, t->org+t->fr.nchars, rp, n);
409 b3994ec5 2003-12-11 devnull * it's expensive to frinsert more than we need, so
410 b3994ec5 2003-12-11 devnull * count newlines.
412 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines-t->fr.nlines;
414 b3994ec5 2003-12-11 devnull for(i=0; i<n; ){
415 b3994ec5 2003-12-11 devnull if(rp[i++] == '\n'){
417 b3994ec5 2003-12-11 devnull if(m >= nl)
421 b3994ec5 2003-12-11 devnull frinsert(&t->fr, rp, rp+i, t->fr.nchars);
422 b3994ec5 2003-12-11 devnull }while(t->fr.lastlinefull == FALSE);
423 b3994ec5 2003-12-11 devnull fbuffree(rp);
427 b3994ec5 2003-12-11 devnull textdelete(Text *t, uint q0, uint q1, int tofile)
429 b3994ec5 2003-12-11 devnull uint n, p0, p1;
430 b3994ec5 2003-12-11 devnull int i, c;
431 b3994ec5 2003-12-11 devnull Text *u;
433 b3994ec5 2003-12-11 devnull if(tofile && t->ncache != 0)
434 b3994ec5 2003-12-11 devnull error("text.delete");
435 b3994ec5 2003-12-11 devnull n = q1-q0;
436 b3994ec5 2003-12-11 devnull if(n == 0)
438 b3994ec5 2003-12-11 devnull if(tofile){
439 b3994ec5 2003-12-11 devnull filedelete(t->file, q0, q1);
440 b3994ec5 2003-12-11 devnull if(t->what == Body){
441 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
442 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
444 b3994ec5 2003-12-11 devnull if(t->file->ntext > 1)
445 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
446 b3994ec5 2003-12-11 devnull u = t->file->text[i];
447 b3994ec5 2003-12-11 devnull if(u != t){
448 b3994ec5 2003-12-11 devnull u->w->dirty = TRUE; /* always a body */
449 b3994ec5 2003-12-11 devnull textdelete(u, q0, q1, FALSE);
450 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
451 b3994ec5 2003-12-11 devnull textscrdraw(u);
455 b3994ec5 2003-12-11 devnull if(q0 < t->q0)
456 b3994ec5 2003-12-11 devnull t->q0 -= min(n, t->q0-q0);
457 b3994ec5 2003-12-11 devnull if(q0 < t->q1)
458 b3994ec5 2003-12-11 devnull t->q1 -= min(n, t->q1-q0);
459 b3994ec5 2003-12-11 devnull if(q1 <= t->org)
460 b3994ec5 2003-12-11 devnull t->org -= n;
461 b3994ec5 2003-12-11 devnull else if(q0 < t->org+t->fr.nchars){
462 b3994ec5 2003-12-11 devnull p1 = q1 - t->org;
463 b3994ec5 2003-12-11 devnull if(p1 > t->fr.nchars)
464 b3994ec5 2003-12-11 devnull p1 = t->fr.nchars;
465 b3994ec5 2003-12-11 devnull if(q0 < t->org){
466 b3994ec5 2003-12-11 devnull t->org = q0;
469 b3994ec5 2003-12-11 devnull p0 = q0 - t->org;
470 b3994ec5 2003-12-11 devnull frdelete(&t->fr, p0, p1);
471 b3994ec5 2003-12-11 devnull textfill(t);
473 b3994ec5 2003-12-11 devnull if(t->w){
474 b3994ec5 2003-12-11 devnull c = 'd';
475 b3994ec5 2003-12-11 devnull if(t->what == Body)
476 b3994ec5 2003-12-11 devnull c = 'D';
477 b3994ec5 2003-12-11 devnull winevent(t->w, "%c%d %d 0 0 \n", c, q0, q1);
482 b3994ec5 2003-12-11 devnull textconstrain(Text *t, uint q0, uint q1, uint *p0, uint *p1)
484 b3994ec5 2003-12-11 devnull *p0 = min(q0, t->file->b.nc);
485 b3994ec5 2003-12-11 devnull *p1 = min(q1, t->file->b.nc);
489 b3994ec5 2003-12-11 devnull textreadc(Text *t, uint q)
493 b3994ec5 2003-12-11 devnull if(t->cq0<=q && q<t->cq0+t->ncache)
494 b3994ec5 2003-12-11 devnull r = t->cache[q-t->cq0];
496 b3994ec5 2003-12-11 devnull bufread(&t->file->b, q, &r, 1);
497 b3994ec5 2003-12-11 devnull return r;
501 b3994ec5 2003-12-11 devnull textbswidth(Text *t, Rune c)
503 b3994ec5 2003-12-11 devnull uint q, eq;
505 b3994ec5 2003-12-11 devnull int skipping;
507 b3994ec5 2003-12-11 devnull /* there is known to be at least one character to erase */
508 b3994ec5 2003-12-11 devnull if(c == 0x08) /* ^H: erase character */
509 b3994ec5 2003-12-11 devnull return 1;
510 b3994ec5 2003-12-11 devnull q = t->q0;
511 b3994ec5 2003-12-11 devnull skipping = TRUE;
512 b3994ec5 2003-12-11 devnull while(q > 0){
513 b3994ec5 2003-12-11 devnull r = textreadc(t, q-1);
514 b3994ec5 2003-12-11 devnull if(r == '\n'){ /* eat at most one more character */
515 b3994ec5 2003-12-11 devnull if(q == t->q0) /* eat the newline */
519 b3994ec5 2003-12-11 devnull if(c == 0x17){
520 b3994ec5 2003-12-11 devnull eq = isalnum(r);
521 b3994ec5 2003-12-11 devnull if(eq && skipping) /* found one; stop skipping */
522 b3994ec5 2003-12-11 devnull skipping = FALSE;
523 b3994ec5 2003-12-11 devnull else if(!eq && !skipping)
528 b3994ec5 2003-12-11 devnull return t->q0-q;
532 c1973705 2004-02-09 devnull textfilewidth(Text *t, uint q0, int oneelement)
538 c1973705 2004-02-09 devnull while(q > 0){
539 c1973705 2004-02-09 devnull r = textreadc(t, q-1);
540 5a8e63b2 2004-02-29 devnull if(r <= ' ')
542 c1973705 2004-02-09 devnull if(oneelement && r=='/')
546 c1973705 2004-02-09 devnull return q0-q;
550 c1973705 2004-02-09 devnull textcomplete(Text *t)
552 c1973705 2004-02-09 devnull int i, nstr, npath;
554 c1973705 2004-02-09 devnull Rune tmp[200];
555 c1973705 2004-02-09 devnull Rune *str, *path;
556 c1973705 2004-02-09 devnull Rune *rp;
557 c1973705 2004-02-09 devnull Completion *c;
558 c1973705 2004-02-09 devnull char *s, *dirs;
559 c1973705 2004-02-09 devnull Runestr dir;
561 c1973705 2004-02-09 devnull /* control-f: filename completion; works back to white space or / */
562 c1973705 2004-02-09 devnull if(t->q0<t->file->b.nc && textreadc(t, t->q0)>' ') /* must be at end of word */
563 c1973705 2004-02-09 devnull return nil;
564 c1973705 2004-02-09 devnull nstr = textfilewidth(t, t->q0, TRUE);
565 c1973705 2004-02-09 devnull str = runemalloc(nstr);
566 c1973705 2004-02-09 devnull npath = textfilewidth(t, t->q0-nstr, FALSE);
567 c1973705 2004-02-09 devnull path = runemalloc(npath);
569 c1973705 2004-02-09 devnull c = nil;
570 c1973705 2004-02-09 devnull rp = nil;
571 c1973705 2004-02-09 devnull dirs = nil;
573 c1973705 2004-02-09 devnull q = t->q0-nstr;
574 c1973705 2004-02-09 devnull for(i=0; i<nstr; i++)
575 c1973705 2004-02-09 devnull str[i] = textreadc(t, q++);
576 c1973705 2004-02-09 devnull q = t->q0-nstr-npath;
577 c1973705 2004-02-09 devnull for(i=0; i<npath; i++)
578 c1973705 2004-02-09 devnull path[i] = textreadc(t, q++);
579 c1973705 2004-02-09 devnull /* is path rooted? if not, we need to make it relative to window path */
580 c1973705 2004-02-09 devnull if(npath>0 && path[0]=='/')
581 8ad51794 2004-03-25 devnull dir = runestr(path, npath);
583 c1973705 2004-02-09 devnull dir = dirname(t, nil, 0);
584 c1973705 2004-02-09 devnull if(dir.nr + 1 + npath > nelem(tmp)){
585 c1973705 2004-02-09 devnull free(dir.r);
586 c1973705 2004-02-09 devnull goto Return;
588 c1973705 2004-02-09 devnull if(dir.nr == 0){
589 c1973705 2004-02-09 devnull dir.nr = 1;
590 c1973705 2004-02-09 devnull dir.r = runestrdup(Ldot);
592 c1973705 2004-02-09 devnull runemove(tmp, dir.r, dir.nr);
593 c1973705 2004-02-09 devnull tmp[dir.nr] = '/';
594 c1973705 2004-02-09 devnull runemove(tmp+dir.nr+1, path, npath);
595 c1973705 2004-02-09 devnull free(dir.r);
596 c1973705 2004-02-09 devnull dir.r = tmp;
597 c1973705 2004-02-09 devnull dir.nr += 1+npath;
598 c1973705 2004-02-09 devnull dir = cleanrname(dir);
601 c1973705 2004-02-09 devnull s = smprint("%.*S", nstr, str);
602 c1973705 2004-02-09 devnull dirs = smprint("%.*S", dir.nr, dir.r);
603 c1973705 2004-02-09 devnull c = complete(dirs, s);
604 c1973705 2004-02-09 devnull free(s);
605 c1973705 2004-02-09 devnull if(c == nil){
606 c1973705 2004-02-09 devnull warning(nil, "error attempting completion: %r\n");
607 c1973705 2004-02-09 devnull goto Return;
610 c1973705 2004-02-09 devnull if(!c->advance){
611 5a8e63b2 2004-02-29 devnull warning(nil, "%.*S%s%.*S*%s\n",
612 c1973705 2004-02-09 devnull dir.nr, dir.r,
613 c1973705 2004-02-09 devnull dir.nr>0 && dir.r[dir.nr-1]!='/' ? "/" : "",
614 5a8e63b2 2004-02-29 devnull nstr, str,
615 5a8e63b2 2004-02-29 devnull c->nmatch ? "" : ": no matches in:");
616 c1973705 2004-02-09 devnull for(i=0; i<c->nfile; i++)
617 c1973705 2004-02-09 devnull warning(nil, " %s\n", c->filename[i]);
620 c1973705 2004-02-09 devnull if(c->advance)
621 c1973705 2004-02-09 devnull rp = runesmprint("%s", c->string);
623 c1973705 2004-02-09 devnull rp = nil;
625 c1973705 2004-02-09 devnull freecompletion(c);
626 c1973705 2004-02-09 devnull free(dirs);
627 c1973705 2004-02-09 devnull free(str);
628 c1973705 2004-02-09 devnull free(path);
629 c1973705 2004-02-09 devnull return rp;
633 b3994ec5 2003-12-11 devnull texttype(Text *t, Rune r)
635 b3994ec5 2003-12-11 devnull uint q0, q1;
636 b3994ec5 2003-12-11 devnull int nnb, nb, n, i;
638 c1973705 2004-02-09 devnull Rune *rp;
639 b3994ec5 2003-12-11 devnull Text *u;
641 b3994ec5 2003-12-11 devnull if(t->what!=Body && r=='\n')
644 c1973705 2004-02-09 devnull rp = &r;
645 b3994ec5 2003-12-11 devnull switch(r){
646 b3994ec5 2003-12-11 devnull case Kleft:
647 5a8e63b2 2004-02-29 devnull if(t->q0 > 0){
648 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
649 c1973705 2004-02-09 devnull textshow(t, t->q0-1, t->q0-1, TRUE);
652 b3994ec5 2003-12-11 devnull case Kright:
653 5a8e63b2 2004-02-29 devnull if(t->q1 < t->file->b.nc){
654 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
655 c1973705 2004-02-09 devnull textshow(t, t->q1+1, t->q1+1, TRUE);
658 c1973705 2004-02-09 devnull case Kdown:
659 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
660 c16f1f73 2004-06-09 devnull goto case_Down;
661 c16f1f73 2004-06-09 devnull case Kscrollonedown:
662 64055489 2004-06-20 devnull n = mousescrollsize(t->fr.maxlines);
663 038aa022 2004-06-11 devnull if(n <= 0)
665 5a8e63b2 2004-02-29 devnull goto case_Down;
666 c1973705 2004-02-09 devnull case Kpgdown:
667 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
668 5a8e63b2 2004-02-29 devnull case_Down:
669 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));
670 64055489 2004-06-20 devnull textsetorigin(t, q0, TRUE);
672 b3994ec5 2003-12-11 devnull case Kup:
673 5a8e63b2 2004-02-29 devnull n = t->fr.maxlines/3;
674 5a8e63b2 2004-02-29 devnull goto case_Up;
675 c16f1f73 2004-06-09 devnull case Kscrolloneup:
676 64055489 2004-06-20 devnull n = mousescrollsize(t->fr.maxlines);
677 c16f1f73 2004-06-09 devnull goto case_Up;
678 c1973705 2004-02-09 devnull case Kpgup:
679 5a8e63b2 2004-02-29 devnull n = 2*t->fr.maxlines/3;
680 5a8e63b2 2004-02-29 devnull case_Up:
681 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, n);
682 64055489 2004-06-20 devnull textsetorigin(t, q0, TRUE);
684 5a8e63b2 2004-02-29 devnull case Khome:
685 5a8e63b2 2004-02-29 devnull textshow(t, 0, 0, FALSE);
687 5a8e63b2 2004-02-29 devnull case Kend:
688 5a8e63b2 2004-02-29 devnull if(t->w)
689 5a8e63b2 2004-02-29 devnull wincommit(t->w, t);
691 5a8e63b2 2004-02-29 devnull textcommit(t, TRUE);
692 5a8e63b2 2004-02-29 devnull textshow(t, t->file->b.nc, t->file->b.nc, FALSE);
695 b3994ec5 2003-12-11 devnull if(t->what == Body){
697 b3994ec5 2003-12-11 devnull filemark(t->file);
699 b3994ec5 2003-12-11 devnull if(t->q1 > t->q0){
700 b3994ec5 2003-12-11 devnull if(t->ncache != 0)
701 b3994ec5 2003-12-11 devnull error("text.type");
702 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
703 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
705 b3994ec5 2003-12-11 devnull textshow(t, t->q0, t->q0, 1);
706 b3994ec5 2003-12-11 devnull switch(r){
707 c1973705 2004-02-09 devnull case 0x06: /* ^F: complete */
708 c1973705 2004-02-09 devnull case Kins:
709 c1973705 2004-02-09 devnull rp = textcomplete(t);
710 c1973705 2004-02-09 devnull if(rp == nil)
712 c1973705 2004-02-09 devnull nr = runestrlen(rp);
713 c1973705 2004-02-09 devnull break; /* fall through to normal insertion case */
714 b3994ec5 2003-12-11 devnull case 0x1B:
715 b3994ec5 2003-12-11 devnull if(t->eq0 != ~0)
716 b3994ec5 2003-12-11 devnull textsetselect(t, t->eq0, t->q0);
717 b3994ec5 2003-12-11 devnull if(t->ncache > 0){
718 b3994ec5 2003-12-11 devnull if(t->w != nil)
719 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
721 b3994ec5 2003-12-11 devnull textcommit(t, TRUE);
724 b3994ec5 2003-12-11 devnull case 0x08: /* ^H: erase character */
725 b3994ec5 2003-12-11 devnull case 0x15: /* ^U: erase line */
726 b3994ec5 2003-12-11 devnull case 0x17: /* ^W: erase word */
727 b3994ec5 2003-12-11 devnull if(t->q0 == 0) /* nothing to erase */
729 b3994ec5 2003-12-11 devnull nnb = textbswidth(t, r);
730 b3994ec5 2003-12-11 devnull q1 = t->q0;
731 b3994ec5 2003-12-11 devnull q0 = q1-nnb;
732 b3994ec5 2003-12-11 devnull /* if selection is at beginning of window, avoid deleting invisible text */
733 b3994ec5 2003-12-11 devnull if(q0 < t->org){
734 b3994ec5 2003-12-11 devnull q0 = t->org;
735 b3994ec5 2003-12-11 devnull nnb = q1-q0;
737 b3994ec5 2003-12-11 devnull if(nnb <= 0)
739 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
740 b3994ec5 2003-12-11 devnull u = t->file->text[i];
741 b3994ec5 2003-12-11 devnull u->nofill = TRUE;
742 b3994ec5 2003-12-11 devnull nb = nnb;
743 b3994ec5 2003-12-11 devnull n = u->ncache;
744 b3994ec5 2003-12-11 devnull if(n > 0){
745 b3994ec5 2003-12-11 devnull if(q1 != u->cq0+n)
746 b3994ec5 2003-12-11 devnull error("text.type backspace");
747 b3994ec5 2003-12-11 devnull if(n > nb)
749 b3994ec5 2003-12-11 devnull u->ncache -= n;
750 b3994ec5 2003-12-11 devnull textdelete(u, q1-n, q1, FALSE);
751 b3994ec5 2003-12-11 devnull nb -= n;
753 b3994ec5 2003-12-11 devnull if(u->eq0==q1 || u->eq0==~0)
754 b3994ec5 2003-12-11 devnull u->eq0 = q0;
755 b3994ec5 2003-12-11 devnull if(nb && u==t)
756 b3994ec5 2003-12-11 devnull textdelete(u, q0, q0+nb, TRUE);
757 b3994ec5 2003-12-11 devnull if(u != t)
758 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
760 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q0);
761 b3994ec5 2003-12-11 devnull u->nofill = FALSE;
763 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++)
764 b3994ec5 2003-12-11 devnull textfill(t->file->text[i]);
766 5a8e63b2 2004-02-29 devnull case '\n':
767 5a8e63b2 2004-02-29 devnull if(t->w->autoindent){
768 5a8e63b2 2004-02-29 devnull /* find beginning of previous line using backspace code */
769 5a8e63b2 2004-02-29 devnull nnb = textbswidth(t, 0x15); /* ^U case */
770 5a8e63b2 2004-02-29 devnull rp = runemalloc(nnb + 1);
772 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
773 5a8e63b2 2004-02-29 devnull for(i=0; i<nnb; i++){
774 5a8e63b2 2004-02-29 devnull r = textreadc(t, t->q0-nnb+i);
775 5a8e63b2 2004-02-29 devnull if(r != ' ' && r != '\t')
777 5a8e63b2 2004-02-29 devnull rp[nr++] = r;
780 5a8e63b2 2004-02-29 devnull break; /* fall through to normal code */
782 b3994ec5 2003-12-11 devnull /* otherwise ordinary character; just insert, typically in caches of all texts */
783 b3994ec5 2003-12-11 devnull for(i=0; i<t->file->ntext; i++){
784 b3994ec5 2003-12-11 devnull u = t->file->text[i];
785 b3994ec5 2003-12-11 devnull if(u->eq0 == ~0)
786 b3994ec5 2003-12-11 devnull u->eq0 = t->q0;
787 b3994ec5 2003-12-11 devnull if(u->ncache == 0)
788 b3994ec5 2003-12-11 devnull u->cq0 = t->q0;
789 b3994ec5 2003-12-11 devnull else if(t->q0 != u->cq0+u->ncache)
790 b3994ec5 2003-12-11 devnull error("text.type cq1");
791 c1973705 2004-02-09 devnull textinsert(u, t->q0, rp, nr, FALSE);
792 b3994ec5 2003-12-11 devnull if(u != t)
793 b3994ec5 2003-12-11 devnull textsetselect(u, u->q0, u->q1);
794 c1973705 2004-02-09 devnull if(u->ncache+nr > u->ncachealloc){
795 c1973705 2004-02-09 devnull u->ncachealloc += 10 + nr;
796 b3994ec5 2003-12-11 devnull u->cache = runerealloc(u->cache, u->ncachealloc);
798 c1973705 2004-02-09 devnull runemove(u->cache+u->ncache, rp, nr);
799 c1973705 2004-02-09 devnull u->ncache += nr;
801 c1973705 2004-02-09 devnull if(rp != &r)
802 c1973705 2004-02-09 devnull free(rp);
803 c1973705 2004-02-09 devnull textsetselect(t, t->q0+nr, t->q0+nr);
804 b3994ec5 2003-12-11 devnull if(r=='\n' && t->w!=nil)
805 b3994ec5 2003-12-11 devnull wincommit(t->w, t);
809 b3994ec5 2003-12-11 devnull textcommit(Text *t, int tofile)
811 b3994ec5 2003-12-11 devnull if(t->ncache == 0)
813 b3994ec5 2003-12-11 devnull if(tofile)
814 b3994ec5 2003-12-11 devnull fileinsert(t->file, t->cq0, t->cache, t->ncache);
815 b3994ec5 2003-12-11 devnull if(t->what == Body){
816 b3994ec5 2003-12-11 devnull t->w->dirty = TRUE;
817 b3994ec5 2003-12-11 devnull t->w->utflastqid = -1;
819 b3994ec5 2003-12-11 devnull t->ncache = 0;
822 b3994ec5 2003-12-11 devnull static Text *clicktext;
823 b3994ec5 2003-12-11 devnull static uint clickmsec;
824 b3994ec5 2003-12-11 devnull static Text *selecttext;
825 b3994ec5 2003-12-11 devnull static uint selectq;
828 b3994ec5 2003-12-11 devnull * called from frame library
831 b3994ec5 2003-12-11 devnull framescroll(Frame *f, int dl)
833 b3994ec5 2003-12-11 devnull if(f != &selecttext->fr)
834 b3994ec5 2003-12-11 devnull error("frameselect not right frame");
835 b3994ec5 2003-12-11 devnull textframescroll(selecttext, dl);
839 b3994ec5 2003-12-11 devnull textframescroll(Text *t, int dl)
841 b3994ec5 2003-12-11 devnull uint q0;
843 b3994ec5 2003-12-11 devnull if(dl == 0){
844 b3994ec5 2003-12-11 devnull scrsleep(100);
847 b3994ec5 2003-12-11 devnull if(dl < 0){
848 b3994ec5 2003-12-11 devnull q0 = textbacknl(t, t->org, -dl);
849 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p0)
850 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p0, selectq);
852 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p0);
854 b3994ec5 2003-12-11 devnull if(t->org+t->fr.nchars == t->file->b.nc)
856 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));
857 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.p1)
858 b3994ec5 2003-12-11 devnull textsetselect(t, t->org+t->fr.p1, selectq);
860 b3994ec5 2003-12-11 devnull textsetselect(t, selectq, t->org+t->fr.p1);
862 b3994ec5 2003-12-11 devnull textsetorigin(t, q0, TRUE);
867 b3994ec5 2003-12-11 devnull textselect(Text *t)
869 b3994ec5 2003-12-11 devnull uint q0, q1;
870 b3994ec5 2003-12-11 devnull int b, x, y;
871 aba09191 2004-04-16 devnull int state, op;
873 b3994ec5 2003-12-11 devnull selecttext = t;
875 b3994ec5 2003-12-11 devnull * To have double-clicking and chording, we double-click
876 b3994ec5 2003-12-11 devnull * immediately if it might make sense.
878 b3994ec5 2003-12-11 devnull b = mouse->buttons;
879 b3994ec5 2003-12-11 devnull q0 = t->q0;
880 b3994ec5 2003-12-11 devnull q1 = t->q1;
881 b3994ec5 2003-12-11 devnull selectq = t->org+frcharofpt(&t->fr, mouse->xy);
882 b3994ec5 2003-12-11 devnull if(clicktext==t && mouse->msec-clickmsec<500)
883 b3994ec5 2003-12-11 devnull if(q0==q1 && selectq==q0){
884 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
885 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
886 b3994ec5 2003-12-11 devnull flushimage(display, 1);
887 b3994ec5 2003-12-11 devnull x = mouse->xy.x;
888 b3994ec5 2003-12-11 devnull y = mouse->xy.y;
889 b3994ec5 2003-12-11 devnull /* stay here until something interesting happens */
891 b3994ec5 2003-12-11 devnull readmouse(mousectl);
892 b3994ec5 2003-12-11 devnull while(mouse->buttons==b && abs(mouse->xy.x-x)<3 && abs(mouse->xy.y-y)<3);
893 b3994ec5 2003-12-11 devnull mouse->xy.x = x; /* in case we're calling frselect */
894 b3994ec5 2003-12-11 devnull mouse->xy.y = y;
895 b3994ec5 2003-12-11 devnull q0 = t->q0; /* may have changed */
896 b3994ec5 2003-12-11 devnull q1 = t->q1;
897 b3994ec5 2003-12-11 devnull selectq = q0;
899 b3994ec5 2003-12-11 devnull if(mouse->buttons == b){
900 b3994ec5 2003-12-11 devnull t->fr.scroll = framescroll;
901 b3994ec5 2003-12-11 devnull frselect(&t->fr, mousectl);
902 b3994ec5 2003-12-11 devnull /* horrible botch: while asleep, may have lost selection altogether */
903 b3994ec5 2003-12-11 devnull if(selectq > t->file->b.nc)
904 b3994ec5 2003-12-11 devnull selectq = t->org + t->fr.p0;
905 be22ae2d 2004-03-26 devnull t->fr.scroll = 0;
906 b3994ec5 2003-12-11 devnull if(selectq < t->org)
907 b3994ec5 2003-12-11 devnull q0 = selectq;
909 b3994ec5 2003-12-11 devnull q0 = t->org + t->fr.p0;
910 b3994ec5 2003-12-11 devnull if(selectq > t->org+t->fr.nchars)
911 b3994ec5 2003-12-11 devnull q1 = selectq;
913 b3994ec5 2003-12-11 devnull q1 = t->org+t->fr.p1;
915 b3994ec5 2003-12-11 devnull if(q0 == q1){
916 b3994ec5 2003-12-11 devnull if(q0==t->q0 && clicktext==t && mouse->msec-clickmsec<500){
917 b3994ec5 2003-12-11 devnull textdoubleclick(t, &q0, &q1);
918 b3994ec5 2003-12-11 devnull clicktext = nil;
920 b3994ec5 2003-12-11 devnull clicktext = t;
921 b3994ec5 2003-12-11 devnull clickmsec = mouse->msec;
924 b3994ec5 2003-12-11 devnull clicktext = nil;
925 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
926 b3994ec5 2003-12-11 devnull flushimage(display, 1);
927 aba09191 2004-04-16 devnull state = op = 0; /* undo when possible; +1 for cut, -1 for paste */
928 b3994ec5 2003-12-11 devnull while(mouse->buttons){
929 b3994ec5 2003-12-11 devnull mouse->msec = 0;
930 b3994ec5 2003-12-11 devnull b = mouse->buttons;
931 b3994ec5 2003-12-11 devnull if(b & 6){
932 aba09191 2004-04-16 devnull if(state==0 && op==0 && t->what==Body){
934 b3994ec5 2003-12-11 devnull filemark(t->w->body.file);
936 b3994ec5 2003-12-11 devnull if(b & 2){
937 b3994ec5 2003-12-11 devnull if(state==-1 && t->what==Body){
938 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
939 b3994ec5 2003-12-11 devnull textsetselect(t, q0, t->q0);
940 b3994ec5 2003-12-11 devnull state = 0;
941 aba09191 2004-04-16 devnull }else if(state != 1 && op != -1){
942 b3994ec5 2003-12-11 devnull cut(t, t, nil, TRUE, TRUE, nil, 0);
943 aba09191 2004-04-16 devnull op = state = 1;
946 b3994ec5 2003-12-11 devnull if(state==1 && t->what==Body){
947 b3994ec5 2003-12-11 devnull winundo(t->w, TRUE);
948 b3994ec5 2003-12-11 devnull textsetselect(t, q0, t->q1);
949 b3994ec5 2003-12-11 devnull state = 0;
950 aba09191 2004-04-16 devnull }else if(state != -1 && op != 1){
951 b3994ec5 2003-12-11 devnull paste(t, t, nil, TRUE, FALSE, nil, 0);
952 aba09191 2004-04-16 devnull op = state = -1;
955 b3994ec5 2003-12-11 devnull textscrdraw(t);
956 b3994ec5 2003-12-11 devnull clearmouse();
958 b3994ec5 2003-12-11 devnull flushimage(display, 1);
959 b3994ec5 2003-12-11 devnull while(mouse->buttons == b)
960 b3994ec5 2003-12-11 devnull readmouse(mousectl);
961 b3994ec5 2003-12-11 devnull clicktext = nil;
966 b3994ec5 2003-12-11 devnull textshow(Text *t, uint q0, uint q1, int doselect)
972 1a8f27c3 2004-05-14 devnull if(t->what != Body){
973 1a8f27c3 2004-05-14 devnull if(doselect)
974 1a8f27c3 2004-05-14 devnull textsetselect(t, q0, q1);
977 b3994ec5 2003-12-11 devnull if(t->w!=nil && t->fr.maxlines==0)
978 b3994ec5 2003-12-11 devnull colgrow(t->col, t->w, 1);
979 b3994ec5 2003-12-11 devnull if(doselect)
980 b3994ec5 2003-12-11 devnull textsetselect(t, q0, q1);
981 b3994ec5 2003-12-11 devnull qe = t->org+t->fr.nchars;
982 b3994ec5 2003-12-11 devnull if(t->org<=q0 && (q0<qe || (q0==qe && qe==t->file->b.nc+t->ncache)))
983 b3994ec5 2003-12-11 devnull textscrdraw(t);
985 b3994ec5 2003-12-11 devnull if(t->w->nopen[QWevent] > 0)
986 b3994ec5 2003-12-11 devnull nl = 3*t->fr.maxlines/4;
988 b3994ec5 2003-12-11 devnull nl = t->fr.maxlines/4;
989 b3994ec5 2003-12-11 devnull q = textbacknl(t, q0, nl);
990 b3994ec5 2003-12-11 devnull /* avoid going backwards if trying to go forwards - long lines! */
991 b3994ec5 2003-12-11 devnull if(!(q0>t->org && q<t->org))
992 b3994ec5 2003-12-11 devnull textsetorigin(t, q, TRUE);
993 b3994ec5 2003-12-11 devnull while(q0 > t->org+t->fr.nchars)
994 b3994ec5 2003-12-11 devnull textsetorigin(t, t->org+1, FALSE);
1000 b3994ec5 2003-12-11 devnull region(int a, int b)
1002 b3994ec5 2003-12-11 devnull if(a < b)
1003 b3994ec5 2003-12-11 devnull return -1;
1004 b3994ec5 2003-12-11 devnull if(a == b)
1005 b3994ec5 2003-12-11 devnull return 0;
1006 b3994ec5 2003-12-11 devnull return 1;
1010 b3994ec5 2003-12-11 devnull selrestore(Frame *f, Point pt0, uint p0, uint p1)
1012 b3994ec5 2003-12-11 devnull if(p1<=f->p0 || p0>=f->p1){
1013 b3994ec5 2003-12-11 devnull /* no overlap */
1014 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[BACK], f->cols[TEXT]);
1015 b3994ec5 2003-12-11 devnull return;
1017 b3994ec5 2003-12-11 devnull if(p0>=f->p0 && p1<=f->p1){
1018 b3994ec5 2003-12-11 devnull /* entirely inside */
1019 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1020 b3994ec5 2003-12-11 devnull return;
1023 b3994ec5 2003-12-11 devnull /* they now are known to overlap */
1025 b3994ec5 2003-12-11 devnull /* before selection */
1026 b3994ec5 2003-12-11 devnull if(p0 < f->p0){
1027 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, f->p0, f->cols[BACK], f->cols[TEXT]);
1028 b3994ec5 2003-12-11 devnull p0 = f->p0;
1029 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1031 b3994ec5 2003-12-11 devnull /* after selection */
1032 b3994ec5 2003-12-11 devnull if(p1 > f->p1){
1033 b3994ec5 2003-12-11 devnull frdrawsel0(f, frptofchar(f, f->p1), f->p1, p1, f->cols[BACK], f->cols[TEXT]);
1034 b3994ec5 2003-12-11 devnull p1 = f->p1;
1036 b3994ec5 2003-12-11 devnull /* inside selection */
1037 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, f->cols[HIGH], f->cols[HTEXT]);
1041 b3994ec5 2003-12-11 devnull textsetselect(Text *t, uint q0, uint q1)
1043 b3994ec5 2003-12-11 devnull int p0, p1;
1045 b3994ec5 2003-12-11 devnull /* t->fr.p0 and t->fr.p1 are always right; t->q0 and t->q1 may be off */
1046 b3994ec5 2003-12-11 devnull t->q0 = q0;
1047 b3994ec5 2003-12-11 devnull t->q1 = q1;
1048 b3994ec5 2003-12-11 devnull /* compute desired p0,p1 from q0,q1 */
1049 b3994ec5 2003-12-11 devnull p0 = q0-t->org;
1050 b3994ec5 2003-12-11 devnull p1 = q1-t->org;
1051 b3994ec5 2003-12-11 devnull if(p0 < 0)
1052 b3994ec5 2003-12-11 devnull p0 = 0;
1053 b3994ec5 2003-12-11 devnull if(p1 < 0)
1054 b3994ec5 2003-12-11 devnull p1 = 0;
1055 b3994ec5 2003-12-11 devnull if(p0 > t->fr.nchars)
1056 b3994ec5 2003-12-11 devnull p0 = t->fr.nchars;
1057 b3994ec5 2003-12-11 devnull if(p1 > t->fr.nchars)
1058 b3994ec5 2003-12-11 devnull p1 = t->fr.nchars;
1059 b3994ec5 2003-12-11 devnull if(p0==t->fr.p0 && p1==t->fr.p1)
1060 b3994ec5 2003-12-11 devnull return;
1061 b3994ec5 2003-12-11 devnull /* screen disagrees with desired selection */
1062 b3994ec5 2003-12-11 devnull if(t->fr.p1<=p0 || p1<=t->fr.p0 || p0==p1 || t->fr.p1==t->fr.p0){
1063 b3994ec5 2003-12-11 devnull /* no overlap or too easy to bother trying */
1064 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, t->fr.p1, 0);
1065 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, p1, 1);
1066 b3994ec5 2003-12-11 devnull goto Return;
1068 b3994ec5 2003-12-11 devnull /* overlap; avoid unnecessary painting */
1069 b3994ec5 2003-12-11 devnull if(p0 < t->fr.p0){
1070 b3994ec5 2003-12-11 devnull /* extend selection backwards */
1071 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p0), p0, t->fr.p0, 1);
1072 b3994ec5 2003-12-11 devnull }else if(p0 > t->fr.p0){
1073 b3994ec5 2003-12-11 devnull /* trim first part of selection */
1074 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p0), t->fr.p0, p0, 0);
1076 b3994ec5 2003-12-11 devnull if(p1 > t->fr.p1){
1077 b3994ec5 2003-12-11 devnull /* extend selection forwards */
1078 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1), t->fr.p1, p1, 1);
1079 b3994ec5 2003-12-11 devnull }else if(p1 < t->fr.p1){
1080 b3994ec5 2003-12-11 devnull /* trim last part of selection */
1081 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, p1), p1, t->fr.p1, 0);
1084 b3994ec5 2003-12-11 devnull Return:
1085 b3994ec5 2003-12-11 devnull t->fr.p0 = p0;
1086 b3994ec5 2003-12-11 devnull t->fr.p1 = p1;
1090 b3994ec5 2003-12-11 devnull * Release the button in less than DELAY ms and it's considered a null selection
1091 b3994ec5 2003-12-11 devnull * if the mouse hardly moved, regardless of whether it crossed a char boundary.
1094 b3994ec5 2003-12-11 devnull DELAY = 2,
1095 b3994ec5 2003-12-11 devnull MINMOVE = 4,
1099 b3994ec5 2003-12-11 devnull xselect(Frame *f, Mousectl *mc, Image *col, uint *p1p) /* when called, button is down */
1101 b3994ec5 2003-12-11 devnull uint p0, p1, q, tmp;
1102 b3994ec5 2003-12-11 devnull ulong msec;
1103 b3994ec5 2003-12-11 devnull Point mp, pt0, pt1, qt;
1104 b3994ec5 2003-12-11 devnull int reg, b;
1106 b3994ec5 2003-12-11 devnull mp = mc->m.xy;
1107 b3994ec5 2003-12-11 devnull b = mc->m.buttons;
1108 b3994ec5 2003-12-11 devnull msec = mc->m.msec;
1110 b3994ec5 2003-12-11 devnull /* remove tick */
1111 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1112 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 0);
1113 b3994ec5 2003-12-11 devnull p0 = p1 = frcharofpt(f, mp);
1114 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1115 b3994ec5 2003-12-11 devnull pt1 = frptofchar(f, p1);
1116 b3994ec5 2003-12-11 devnull reg = 0;
1117 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1119 b3994ec5 2003-12-11 devnull q = frcharofpt(f, mc->m.xy);
1120 b3994ec5 2003-12-11 devnull if(p1 != q){
1121 b3994ec5 2003-12-11 devnull if(p0 == p1)
1122 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1123 b3994ec5 2003-12-11 devnull if(reg != region(q, p0)){ /* crossed starting point; reset */
1124 b3994ec5 2003-12-11 devnull if(reg > 0)
1125 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1126 b3994ec5 2003-12-11 devnull else if(reg < 0)
1127 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1128 b3994ec5 2003-12-11 devnull p1 = p0;
1129 b3994ec5 2003-12-11 devnull pt1 = pt0;
1130 b3994ec5 2003-12-11 devnull reg = region(q, p0);
1131 b3994ec5 2003-12-11 devnull if(reg == 0)
1132 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt0, p0, p1, col, display->white);
1134 b3994ec5 2003-12-11 devnull qt = frptofchar(f, q);
1135 b3994ec5 2003-12-11 devnull if(reg > 0){
1136 b3994ec5 2003-12-11 devnull if(q > p1)
1137 b3994ec5 2003-12-11 devnull frdrawsel0(f, pt1, p1, q, col, display->white);
1139 b3994ec5 2003-12-11 devnull else if(q < p1)
1140 b3994ec5 2003-12-11 devnull selrestore(f, qt, q, p1);
1141 b3994ec5 2003-12-11 devnull }else if(reg < 0){
1142 b3994ec5 2003-12-11 devnull if(q > p1)
1143 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, q);
1145 b3994ec5 2003-12-11 devnull frdrawsel0(f, qt, q, p1, col, display->white);
1147 b3994ec5 2003-12-11 devnull p1 = q;
1148 b3994ec5 2003-12-11 devnull pt1 = qt;
1150 b3994ec5 2003-12-11 devnull if(p0 == p1)
1151 b3994ec5 2003-12-11 devnull frtick(f, pt0, 1);
1152 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1153 b3994ec5 2003-12-11 devnull readmouse(mc);
1154 b3994ec5 2003-12-11 devnull }while(mc->m.buttons == b);
1155 b3994ec5 2003-12-11 devnull if(mc->m.msec-msec < DELAY && p0!=p1
1156 b3994ec5 2003-12-11 devnull && abs(mp.x-mc->m.xy.x)<MINMOVE
1157 b3994ec5 2003-12-11 devnull && abs(mp.y-mc->m.xy.y)<MINMOVE) {
1158 b3994ec5 2003-12-11 devnull if(reg > 0)
1159 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1160 b3994ec5 2003-12-11 devnull else if(reg < 0)
1161 b3994ec5 2003-12-11 devnull selrestore(f, pt1, p1, p0);
1162 b3994ec5 2003-12-11 devnull p1 = p0;
1164 b3994ec5 2003-12-11 devnull if(p1 < p0){
1165 b3994ec5 2003-12-11 devnull tmp = p0;
1166 b3994ec5 2003-12-11 devnull p0 = p1;
1167 b3994ec5 2003-12-11 devnull p1 = tmp;
1169 b3994ec5 2003-12-11 devnull pt0 = frptofchar(f, p0);
1170 b3994ec5 2003-12-11 devnull if(p0 == p1)
1171 b3994ec5 2003-12-11 devnull frtick(f, pt0, 0);
1172 b3994ec5 2003-12-11 devnull selrestore(f, pt0, p0, p1);
1173 b3994ec5 2003-12-11 devnull /* restore tick */
1174 b3994ec5 2003-12-11 devnull if(f->p0 == f->p1)
1175 b3994ec5 2003-12-11 devnull frtick(f, frptofchar(f, f->p0), 1);
1176 b3994ec5 2003-12-11 devnull flushimage(f->display, 1);
1177 b3994ec5 2003-12-11 devnull *p1p = p1;
1178 b3994ec5 2003-12-11 devnull return p0;
1182 b3994ec5 2003-12-11 devnull textselect23(Text *t, uint *q0, uint *q1, Image *high, int mask)
1184 b3994ec5 2003-12-11 devnull uint p0, p1;
1185 b3994ec5 2003-12-11 devnull int buts;
1187 b3994ec5 2003-12-11 devnull p0 = xselect(&t->fr, mousectl, high, &p1);
1188 b3994ec5 2003-12-11 devnull buts = mousectl->m.buttons;
1189 b3994ec5 2003-12-11 devnull if((buts & mask) == 0){
1190 b3994ec5 2003-12-11 devnull *q0 = p0+t->org;
1191 b3994ec5 2003-12-11 devnull *q1 = p1+t->org;
1194 b3994ec5 2003-12-11 devnull while(mousectl->m.buttons)
1195 b3994ec5 2003-12-11 devnull readmouse(mousectl);
1196 b3994ec5 2003-12-11 devnull return buts;
1200 b3994ec5 2003-12-11 devnull textselect2(Text *t, uint *q0, uint *q1, Text **tp)
1202 b3994ec5 2003-12-11 devnull int buts;
1204 b3994ec5 2003-12-11 devnull *tp = nil;
1205 b3994ec5 2003-12-11 devnull buts = textselect23(t, q0, q1, but2col, 4);
1206 b3994ec5 2003-12-11 devnull if(buts & 4)
1207 b3994ec5 2003-12-11 devnull return 0;
1208 b3994ec5 2003-12-11 devnull if(buts & 1){ /* pick up argument */
1209 b3994ec5 2003-12-11 devnull *tp = argtext;
1210 b3994ec5 2003-12-11 devnull return 1;
1212 b3994ec5 2003-12-11 devnull return 1;
1216 b3994ec5 2003-12-11 devnull textselect3(Text *t, uint *q0, uint *q1)
1220 b3994ec5 2003-12-11 devnull h = (textselect23(t, q0, q1, but3col, 1|2) == 0);
1221 b3994ec5 2003-12-11 devnull return h;
1224 b3994ec5 2003-12-11 devnull static Rune left1[] = { '{', '[', '(', '<', 0xab, 0 };
1225 b3994ec5 2003-12-11 devnull static Rune right1[] = { '}', ']', ')', '>', 0xbb, 0 };
1226 b3994ec5 2003-12-11 devnull static Rune left2[] = { '\n', 0 };
1227 b3994ec5 2003-12-11 devnull static Rune left3[] = { '\'', '"', '`', 0 };
1230 b3994ec5 2003-12-11 devnull Rune *left[] = {
1237 b3994ec5 2003-12-11 devnull Rune *right[] = {
1238 b3994ec5 2003-12-11 devnull right1,
1245 b3994ec5 2003-12-11 devnull textdoubleclick(Text *t, uint *q0, uint *q1)
1247 b3994ec5 2003-12-11 devnull int c, i;
1248 b3994ec5 2003-12-11 devnull Rune *r, *l, *p;
1249 b3994ec5 2003-12-11 devnull uint q;
1251 b3994ec5 2003-12-11 devnull for(i=0; left[i]!=nil; i++){
1252 b3994ec5 2003-12-11 devnull q = *q0;
1253 b3994ec5 2003-12-11 devnull l = left[i];
1254 b3994ec5 2003-12-11 devnull r = right[i];
1255 b3994ec5 2003-12-11 devnull /* try matching character to left, looking right */
1256 b3994ec5 2003-12-11 devnull if(q == 0)
1257 b3994ec5 2003-12-11 devnull c = '\n';
1259 b3994ec5 2003-12-11 devnull c = textreadc(t, q-1);
1260 b3994ec5 2003-12-11 devnull p = runestrchr(l, c);
1261 b3994ec5 2003-12-11 devnull if(p != nil){
1262 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, r[p-l], 1, &q))
1263 b3994ec5 2003-12-11 devnull *q1 = q-(c!='\n');
1264 b3994ec5 2003-12-11 devnull return;
1266 b3994ec5 2003-12-11 devnull /* try matching character to right, looking left */
1267 b3994ec5 2003-12-11 devnull if(q == t->file->b.nc)
1268 b3994ec5 2003-12-11 devnull c = '\n';
1270 b3994ec5 2003-12-11 devnull c = textreadc(t, q);
1271 b3994ec5 2003-12-11 devnull p = runestrchr(r, c);
1272 b3994ec5 2003-12-11 devnull if(p != nil){
1273 b3994ec5 2003-12-11 devnull if(textclickmatch(t, c, l[p-r], -1, &q)){
1274 b3994ec5 2003-12-11 devnull *q1 = *q0+(*q0<t->file->b.nc && c=='\n');
1275 b3994ec5 2003-12-11 devnull *q0 = q;
1276 b3994ec5 2003-12-11 devnull if(c!='\n' || q!=0 || textreadc(t, 0)=='\n')
1277 b3994ec5 2003-12-11 devnull (*q0)++;
1279 b3994ec5 2003-12-11 devnull return;
1282 b3994ec5 2003-12-11 devnull /* try filling out word to right */
1283 b3994ec5 2003-12-11 devnull while(*q1<t->file->b.nc && isalnum(textreadc(t, *q1)))
1284 b3994ec5 2003-12-11 devnull (*q1)++;
1285 b3994ec5 2003-12-11 devnull /* try filling out word to left */
1286 b3994ec5 2003-12-11 devnull while(*q0>0 && isalnum(textreadc(t, *q0-1)))
1287 b3994ec5 2003-12-11 devnull (*q0)--;
1291 b3994ec5 2003-12-11 devnull textclickmatch(Text *t, int cl, int cr, int dir, uint *q)
1293 b3994ec5 2003-12-11 devnull Rune c;
1294 b3994ec5 2003-12-11 devnull int nest;
1296 b3994ec5 2003-12-11 devnull nest = 1;
1297 b3994ec5 2003-12-11 devnull for(;;){
1298 b3994ec5 2003-12-11 devnull if(dir > 0){
1299 b3994ec5 2003-12-11 devnull if(*q == t->file->b.nc)
1301 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1302 b3994ec5 2003-12-11 devnull (*q)++;
1304 b3994ec5 2003-12-11 devnull if(*q == 0)
1306 b3994ec5 2003-12-11 devnull (*q)--;
1307 b3994ec5 2003-12-11 devnull c = textreadc(t, *q);
1309 b3994ec5 2003-12-11 devnull if(c == cr){
1310 b3994ec5 2003-12-11 devnull if(--nest==0)
1311 b3994ec5 2003-12-11 devnull return 1;
1312 b3994ec5 2003-12-11 devnull }else if(c == cl)
1313 b3994ec5 2003-12-11 devnull nest++;
1315 b3994ec5 2003-12-11 devnull return cl=='\n' && nest==1;
1319 b3994ec5 2003-12-11 devnull textbacknl(Text *t, uint p, uint n)
1321 b3994ec5 2003-12-11 devnull int i, j;
1323 b3994ec5 2003-12-11 devnull /* look for start of this line if n==0 */
1324 b3994ec5 2003-12-11 devnull if(n==0 && p>0 && textreadc(t, p-1)!='\n')
1327 b3994ec5 2003-12-11 devnull while(i-->0 && p>0){
1328 b3994ec5 2003-12-11 devnull --p; /* it's at a newline now; back over it */
1329 b3994ec5 2003-12-11 devnull if(p == 0)
1331 b3994ec5 2003-12-11 devnull /* at 128 chars, call it a line anyway */
1332 b3994ec5 2003-12-11 devnull for(j=128; --j>0 && p>0; p--)
1333 b3994ec5 2003-12-11 devnull if(textreadc(t, p-1)=='\n')
1336 b3994ec5 2003-12-11 devnull return p;
1340 b3994ec5 2003-12-11 devnull textsetorigin(Text *t, uint org, int exact)
1342 b3994ec5 2003-12-11 devnull int i, a, fixup;
1343 b3994ec5 2003-12-11 devnull Rune *r;
1344 b3994ec5 2003-12-11 devnull uint n;
1346 b3994ec5 2003-12-11 devnull if(org>0 && !exact){
1347 b3994ec5 2003-12-11 devnull /* org is an estimate of the char posn; find a newline */
1348 b3994ec5 2003-12-11 devnull /* don't try harder than 256 chars */
1349 b3994ec5 2003-12-11 devnull for(i=0; i<256 && org<t->file->b.nc; i++){
1350 b3994ec5 2003-12-11 devnull if(textreadc(t, org) == '\n'){
1357 b3994ec5 2003-12-11 devnull a = org-t->org;
1358 b3994ec5 2003-12-11 devnull fixup = 0;
1359 b3994ec5 2003-12-11 devnull if(a>=0 && a<t->fr.nchars){
1360 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, a);
1361 b3994ec5 2003-12-11 devnull fixup = 1; /* frdelete can leave end of last line in wrong selection mode; it doesn't know what follows */
1363 b3994ec5 2003-12-11 devnull else if(a<0 && -a<t->fr.nchars){
1364 b3994ec5 2003-12-11 devnull n = t->org - org;
1365 b3994ec5 2003-12-11 devnull r = runemalloc(n);
1366 b3994ec5 2003-12-11 devnull bufread(&t->file->b, org, r, n);
1367 b3994ec5 2003-12-11 devnull frinsert(&t->fr, r, r+n, 0);
1368 b3994ec5 2003-12-11 devnull free(r);
1370 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1371 b3994ec5 2003-12-11 devnull t->org = org;
1372 b3994ec5 2003-12-11 devnull textfill(t);
1373 b3994ec5 2003-12-11 devnull textscrdraw(t);
1374 b3994ec5 2003-12-11 devnull textsetselect(t, t->q0, t->q1);
1375 b3994ec5 2003-12-11 devnull if(fixup && t->fr.p1 > t->fr.p0)
1376 b3994ec5 2003-12-11 devnull frdrawsel(&t->fr, frptofchar(&t->fr, t->fr.p1-1), t->fr.p1-1, t->fr.p1, 1);
1380 b3994ec5 2003-12-11 devnull textreset(Text *t)
1382 b3994ec5 2003-12-11 devnull t->file->seq = 0;
1383 b3994ec5 2003-12-11 devnull t->eq0 = ~0;
1384 b3994ec5 2003-12-11 devnull /* do t->delete(0, t->nc, TRUE) without building backup stuff */
1385 b3994ec5 2003-12-11 devnull textsetselect(t, t->org, t->org);
1386 b3994ec5 2003-12-11 devnull frdelete(&t->fr, 0, t->fr.nchars);
1387 b3994ec5 2003-12-11 devnull t->org = 0;
1388 b3994ec5 2003-12-11 devnull t->q0 = 0;
1389 b3994ec5 2003-12-11 devnull t->q1 = 0;
1390 b3994ec5 2003-12-11 devnull filereset(t->file);
1391 b3994ec5 2003-12-11 devnull bufreset(&t->file->b);
