17 char Enoname[] = "no file name given";
26 int append(File*, Cmd*, long);
28 void pfilename(File*);
29 void looper(File*, Cmd*, int);
30 void filelooper(Cmd*, int);
31 void linelooper(File*, Cmd*);
32 Address lineaddr(long, Address, int);
33 int filematch(File*, String*);
34 File *tofile(String*);
35 Rune* cmdname(File *f, String *s, int);
36 void runpipe(Text*, int, Rune*, int, int);
54 mkaddr(Address *a, File *f)
56 a->r.q0 = f->curtext->q0;
57 a->r.q1 = f->curtext->q1;
62 cmdexec(Text *t, Cmd *cp)
74 if(w==nil && (cp->addr==0 || cp->addr->type!='"') &&
75 !utfrune("bBnqUXY!", cp->cmdc) &&
76 !(cp->cmdc=='D' && cp->text))
77 editerror("no current window");
78 i = cmdlookup(cp->cmdc); /* will be -1 for '{' */
85 if(i>=0 && cmdtab[i].defaddr != aNo){
86 if((ap=cp->addr)==0 && cp->cmdc!='\n'){
87 cp->addr = ap = newaddr();
89 if(cmdtab[i].defaddr == aAll)
91 }else if(ap && ap->type=='"' && ap->next==0 && cp->cmdc!='\n'){
94 if(cmdtab[i].defaddr == aAll)
97 if(cp->addr){ /* may be false for '\n' (only) */
98 static Address none = {0,0,nil};
101 addr = cmdaddress(ap, dot, 0);
103 addr = cmdaddress(ap, none, 0);
112 dot = cmdaddress(cp->addr, dot, 0);
113 for(cp = cp->cmd; cp; cp = cp->next){
114 if(dot.r.q1 > t->file->nc)
115 editerror("dot extends past end of buffer during { command");
123 editerror("unknown command %c in cmdexec", cp->cmdc);
124 i = (*cmdtab[i].fn)(t, cp);
131 edittext(Window *w, int q, Rune *r, int nr)
138 return "permission denied";
140 eloginsert(f, q, r, nr);
143 collection = runerealloc(collection, ncollection+nr+1);
144 runemove(collection+ncollection, r, nr);
146 collection[ncollection] = '\0';
149 return "unknown state in edittext";
153 /* string is known to be NUL-terminated */
155 filelist(Text *t, Rune *r, int nr)
159 r = skipbl(r, nr, &nr);
161 return runestrdup(r);
162 /* use < command to collect text */
164 runpipe(t, '<', r+1, nr-1, Collecting);
169 a_cmd(Text *t, Cmd *cp)
171 return append(t->file, cp, addr.r.q1);
175 b_cmd(Text*, Cmd *cp)
179 f = tofile(cp->text);
182 curtext = f->curtext;
187 B_cmd(Text *t, Cmd *cp)
192 list = filelist(t, cp->text->r, cp->text->n);
197 r = skipbl(r, nr, &nr);
199 new(t, t, nil, 0, 0, r, 0);
201 s = findbl(r, nr, &nr);
203 new(t, t, nil, 0, 0, r, runestrlen(r));
205 r = skipbl(s+1, nr-1, &nr);
212 c_cmd(Text *t, Cmd *cp)
214 elogreplace(t->file, addr.r.q0, addr.r.q1, cp->text->r, cp->text->n);
223 if(addr.r.q1 > addr.r.q0)
224 elogdelete(t->file, addr.r.q0, addr.r.q1);
233 if(t->w->body.file->ntext>1 || winclean(t->w, FALSE))
234 colclose(t->col, t->w, TRUE);
238 D_cmd(Text *t, Cmd *cp)
240 Rune *list, *r, *s, *n;
246 list = filelist(t, cp->text->r, cp->text->n);
251 dir = dirname(t, nil, 0);
254 r = skipbl(r, nr, &nr);
256 s = findbl(r, nr, &nr);
258 /* first time through, could be empty string, meaning delete file empty name */
260 if(r[0]=='/' || nn==0 || dir.nr==0){
261 rs.r = runestrdup(r);
264 n = runemalloc(dir.nr+1+nn);
265 runemove(n, dir.r, dir.nr);
267 runemove(n+dir.nr+1, r, nn);
268 rs = cleanrname((Runestr){n, dir.nr+1+nn});
270 w = lookfile(rs.r, rs.nr);
272 snprint(buf, sizeof buf, "no such file %.*S", rs.nr, rs.r);
279 r = skipbl(s+1, nr-1, &nr);
287 readloader(void *v, uint q0, Rune *r, int nr)
290 eloginsert(v, q0, r, nr);
295 e_cmd(Text *t, Cmd *cp)
299 int i, isdir, q0, q1, fd, nulls, samename, allreplaced;
307 if(winclean(t->w, TRUE)==FALSE)
308 editerror(""); /* winclean generated message already */
312 allreplaced = (q0==0 && q1==f->nc);
313 name = cmdname(f, cp->text, cp->cmdc=='e');
316 i = runestrlen(name);
317 samename = runeeq(name, i, t->file->name, t->file->nname);
318 s = runetobyte(name, i);
322 snprint(tmp, sizeof tmp, "can't open %s: %r", s);
327 isdir = (d!=nil && (d->qid.type&QTDIR));
331 snprint(tmp, sizeof tmp, "%s is a directory", s);
335 elogdelete(f, q0, q1);
337 loadfile(fd, q1, &nulls, readloader, f);
341 warning(nil, "%s: NUL bytes elided\n", s);
342 else if(allreplaced && samename)
348 f_cmd(Text *t, Cmd *cp)
360 name = cmdname(t->file, str, TRUE);
367 g_cmd(Text *t, Cmd *cp)
369 if(t->file != addr.f){
370 warning(nil, "internal error: g_cmd f!=addr.f\n");
373 if(rxcompile(cp->re->r) == FALSE)
374 editerror("bad regexp in g command");
375 if(rxexecute(t, nil, addr.r.q0, addr.r.q1, &sel) ^ cp->cmdc=='v'){
378 return cmdexec(t, cp->cmd);
384 i_cmd(Text *t, Cmd *cp)
386 return append(t->file, cp, addr.r.q0);
390 copy(File *f, Address addr2)
397 for(p=addr.r.q0; p<addr.r.q1; p+=ni){
401 bufread(f, p, buf, ni);
402 eloginsert(addr2.f, addr2.r.q1, buf, ni);
408 move(File *f, Address addr2)
410 if(addr.f!=addr2.f || addr.r.q1<=addr2.r.q0){
411 elogdelete(f, addr.r.q0, addr.r.q1);
413 }else if(addr.r.q0 >= addr2.r.q1){
415 elogdelete(f, addr.r.q0, addr.r.q1);
416 }else if(addr.r.q0==addr2.r.q0 && addr.r.q1==addr2.r.q1){
417 ; /* move to self; no-op */
419 editerror("move overlaps itself");
423 m_cmd(Text *t, Cmd *cp)
427 mkaddr(&dot, t->file);
428 addr2 = cmdaddress(cp->mtaddr, dot, 0);
430 move(t->file, addr2);
432 copy(t->file, addr2);
439 return pdisplay(t->file);
443 s_cmd(Text *t, Cmd *cp)
445 int i, j, k, c, m, n, nrp, didsub;
454 if(rxcompile(cp->re->r) == FALSE)
455 editerror("bad regexp in s command");
460 for(p1 = addr.r.q0; p1<=addr.r.q1 && rxexecute(t, nil, p1, addr.r.q1, &sel); ){
461 if(sel.r[0].q0 == sel.r[0].q1){ /* empty match? */
462 if(sel.r[0].q0 == op){
473 rp = erealloc(rp, nrp*sizeof(Rangeset));
477 buf = allocstring(0);
478 for(m=0; m<nrp; m++){
482 for(i = 0; i<cp->text->n; i++)
483 if((c = cp->text->r[i])=='\\' && i<cp->text->n-1){
484 c = cp->text->r[++i];
485 if('1'<=c && c<='9') {
487 if(sel.r[j].q1-sel.r[j].q0>RBUFSIZE){
488 err = "replacement string too long";
491 bufread(t->file, sel.r[j].q0, rbuf, sel.r[j].q1-sel.r[j].q0);
492 for(k=0; k<sel.r[j].q1-sel.r[j].q0; k++)
493 Straddc(buf, rbuf[k]);
499 if(sel.r[0].q1-sel.r[0].q0>RBUFSIZE){
500 err = "right hand side too long in substitution";
503 bufread(t->file, sel.r[0].q0, rbuf, sel.r[0].q1-sel.r[0].q0);
504 for(k=0; k<sel.r[0].q1-sel.r[0].q0; k++)
505 Straddc(buf, rbuf[k]);
507 elogreplace(t->file, sel.r[0].q0, sel.r[0].q1, buf->r, buf->n);
508 delta -= sel.r[0].q1-sel.r[0].q0;
517 if(!didsub && nest==0)
518 editerror("no substitution");
532 u_cmd(Text *t, Cmd *cp)
543 while(n-->0 && t->file->seq!=0 && t->file->seq!=oseq){
545 undo(t, nil, nil, flag, 0, nil, 0);
551 w_cmd(Text *t, Cmd *cp)
558 editerror("can't write file with pending modifications");
559 r = cmdname(f, cp->text, FALSE);
561 editerror("no name specified for 'w' command");
562 putfile(f, addr.r.q0, addr.r.q1, r, runestrlen(r));
563 /* r is freed by putfile */
568 x_cmd(Text *t, Cmd *cp)
571 looper(t->file, cp, cp->cmdc=='x');
573 linelooper(t->file, cp);
578 X_cmd(Text*, Cmd *cp)
580 filelooper(cp, cp->cmdc=='X');
585 runpipe(Text *t, int cmd, Rune *cr, int ncr, int state)
592 r = skipbl(cr, ncr, &n);
594 editerror("no command specified for %c", cmd);
596 if(state == Inserting){
600 if(cmd == '<' || cmd=='|')
601 elogdelete(t->file, t->q0, t->q1);
610 dir = dirname(t, nil, 0);
611 if(dir.nr==1 && dir.r[0]=='.'){ /* sigh */
617 if(t!=nil && t->w!=nil)
618 incref(t->w); /* run will decref */
619 run(w, runetobyte(s, n), dir.r, dir.nr, TRUE, nil, nil, TRUE);
621 if(t!=nil && t->w!=nil)
627 if(t!=nil && t->w!=nil)
632 pipe_cmd(Text *t, Cmd *cp)
634 runpipe(t, cp->cmdc, cp->text->r, cp->text->n, Inserting);
639 nlcount(Text *t, long q0, long q1)
653 bufread(t->file, q0, buf, nbuf);
665 printposn(Text *t, int charsonly)
669 if (t != nil && t->file != nil && t->file->name != nil)
670 warning(nil, "%.*S:", t->file->nname, t->file->name);
672 l1 = 1+nlcount(t, 0, addr.r.q0);
673 l2 = l1+nlcount(t, addr.r.q0, addr.r.q1);
674 /* check if addr ends with '\n' */
675 if(addr.r.q1>0 && addr.r.q1>addr.r.q0 && textreadc(t, addr.r.q1-1)=='\n')
677 warning(nil, "%lud", l1);
679 warning(nil, ",%lud", l2);
683 warning(nil, "#%d", addr.r.q0);
684 if(addr.r.q1 != addr.r.q0)
685 warning(nil, ",#%d", addr.r.q1);
690 eq_cmd(Text *t, Cmd *cp)
699 if(cp->text->r[0] == '#'){
705 editerror("newline expected");
707 printposn(t, charsonly);
712 nl_cmd(Text *t, Cmd *cp)
719 /* First put it on newline boundaries */
721 addr = lineaddr(0, a, -1);
722 a = lineaddr(0, a, 1);
724 if(addr.r.q0==t->q0 && addr.r.q1==t->q1){
726 addr = lineaddr(1, a, 1);
729 textshow(t, addr.r.q0, addr.r.q1, 1);
734 append(File *f, Cmd *cp, long p)
737 eloginsert(f, p, cp->text->r, cp->text->n);
759 bufread(f, p1, buf, np);
761 warning(nil, "%S", buf);
765 f->curtext->q0 = addr.r.q0;
766 f->curtext->q1 = addr.r.q1;
777 /* same check for dirty as in settag, but we know ncache==0 */
778 dirty = !w->isdir && !w->isscratch && f->mod;
779 warning(nil, "%c%c%c %.*S\n", " '"[dirty],
780 '+', " ."[curtext!=nil && curtext->file==f], f->nname, f->name);
784 loopcmd(File *f, Cmd *cp, Range *rp, long nrp)
788 for(i=0; i<nrp; i++){
789 f->curtext->q0 = rp[i].q0;
790 f->curtext->q1 = rp[i].q1;
791 cmdexec(f->curtext, cp);
796 looper(File *f, Cmd *cp, int xy)
805 if(rxcompile(cp->re->r) == FALSE)
806 editerror("bad regexp in %c command", cp->cmdc);
809 for(p = r.q0; p<=r.q1; ){
810 if(!rxexecute(f->curtext, nil, p, r.q1, &sel)){ /* no match, but y should still run */
813 tr.q0 = op, tr.q1 = r.q1;
814 p = r.q1+1; /* exit next loop */
816 if(sel.r[0].q0==sel.r[0].q1){ /* empty match? */
827 tr.q0 = op, tr.q1 = sel.r[0].q0;
831 rp = erealloc(rp, nrp*sizeof(Range));
834 loopcmd(f, cp->cmd, rp, nrp);
840 linelooper(File *f, Cmd *cp)
852 a3.r.q0 = a3.r.q1 = r.q0;
853 a = lineaddr(0, a3, 1);
855 for(p = r.q0; p<r.q1; p = a3.r.q1){
857 if(p!=r.q0 || linesel.q1==p){
858 a = lineaddr(1, a3, 1);
861 if(linesel.q0 >= r.q1)
863 if(linesel.q1 >= r.q1)
865 if(linesel.q1 > linesel.q0)
866 if(linesel.q0>=a3.r.q1 && linesel.q1>a3.r.q1){
869 rp = erealloc(rp, nrp*sizeof(Range));
875 loopcmd(f, cp->cmd, rp, nrp);
886 } loopstruct; /* only one; X and Y can't nest */
889 alllooper(Window *w, void *v)
897 // if(w->isscratch || w->isdir)
900 /* only use this window if it's the current window for the file */
901 if(t->file->curtext != t)
903 // if(w->nopen[QWevent] > 0)
905 /* no auto-execute on files without names */
906 if(cp->re==nil && t->file->nname==0)
908 if(cp->re==nil || filematch(t->file, cp->re)==lp->XY){
909 lp->w = erealloc(lp->w, (lp->nw+1)*sizeof(Window*));
915 alllocker(Window *w, void *v)
924 filelooper(Cmd *cp, int XY)
929 editerror("can't nest %c command", "YX"[XY]);
934 if(loopstruct.w) /* error'ed out last time */
938 allwindows(alllooper, &loopstruct);
940 * add a ref to all windows to keep safe windows accessed by X
941 * that would not otherwise have a ref to hold them up during
942 * the shenanigans. note this with globalincref so that any
943 * newly created windows start with an extra reference.
945 allwindows(alllocker, (void*)1);
947 for(i=0; i<loopstruct.nw; i++)
948 cmdexec(&loopstruct.w[i]->body, cp->cmd);
949 allwindows(alllocker, (void*)0);
959 nextmatch(File *f, String *r, long p, int sign)
961 if(rxcompile(r->r) == FALSE)
962 editerror("bad regexp in command address");
964 if(!rxexecute(f->curtext, nil, p, 0x7FFFFFFFL, &sel))
965 editerror("no match for regexp");
966 if(sel.r[0].q0==sel.r[0].q1 && sel.r[0].q0==p){
969 if(!rxexecute(f->curtext, nil, p, 0x7FFFFFFFL, &sel))
970 editerror("address");
973 if(!rxbexecute(f->curtext, p, &sel))
974 editerror("no match for regexp");
975 if(sel.r[0].q0==sel.r[0].q1 && sel.r[0].q1==p){
978 if(!rxbexecute(f->curtext, p, &sel))
979 editerror("address");
984 File *matchfile(String*);
985 Address charaddr(long, Address, int);
986 Address lineaddr(long, Address, int);
989 cmdaddress(Addr *ap, Address a, int sign)
998 a = (*(ap->type=='#'?charaddr:lineaddr))(ap->num, a, sign);
1006 a.r.q0 = a.r.q1 = f->nc;
1010 editerror("can't handle '");
1020 nextmatch(f, ap->re, sign>=0? a.r.q1 : a.r.q0, sign);
1025 f = matchfile(ap->re);
1030 a.r.q0 = 0, a.r.q1 = f->nc;
1036 a1 = cmdaddress(ap->left, a, 0);
1038 a1.f = a.f, a1.r.q0 = a1.r.q1 = 0;
1039 if(ap->type == ';'){
1042 f->curtext->q0 = a1.r.q0;
1043 f->curtext->q1 = a1.r.q1;
1046 a2 = cmdaddress(ap->next, a, 0);
1048 a2.f = a.f, a2.r.q0 = a2.r.q1 = f->nc;
1050 editerror("addresses in different files");
1051 a.f = a1.f, a.r.q0 = a1.r.q0, a.r.q1 = a2.r.q1;
1053 editerror("addresses out of order");
1061 if(ap->next==0 || ap->next->type=='+' || ap->next->type=='-')
1062 a = lineaddr(1L, a, sign);
1065 error("cmdaddress");
1068 }while(ap = ap->next); /* assign = */
1078 alltofile(Window *w, void *v)
1086 if(w->isscratch || w->isdir)
1089 /* only use this window if it's the current window for the file */
1090 if(t->file->curtext != t)
1092 // if(w->nopen[QWevent] > 0)
1094 if(runeeq(tp->r->r, tp->r->n, t->file->name, t->file->nname))
1104 rr.r = skipbl(r->r, r->n, &rr.n);
1107 allwindows(alltofile, &t);
1109 editerror("no such file\"%S\"", rr.r);
1114 allmatchfile(Window *w, void *v)
1120 if(w->isscratch || w->isdir)
1123 /* only use this window if it's the current window for the file */
1124 if(t->file->curtext != t)
1126 // if(w->nopen[QWevent] > 0)
1128 if(filematch(w->body.file, tp->r)){
1130 editerror("too many files match \"%S\"", tp->r->r);
1131 tp->f = w->body.file;
1136 matchfile(String *r)
1142 allwindows(allmatchfile, &tf);
1145 editerror("no file matches \"%S\"", r->r);
1150 filematch(File *f, String *r)
1155 int match, i, dirty;
1158 /* compile expr first so if we get an error, we haven't allocated anything */
1159 if(rxcompile(r->r) == FALSE)
1160 editerror("bad regexp in file match");
1163 /* same check for dirty as in settag, but we know ncache==0 */
1164 dirty = !w->isdir && !w->isscratch && f->mod;
1165 snprint(buf, BUFSIZE, "%c%c%c %.*S\n", " '"[dirty],
1166 '+', " ."[curtext!=nil && curtext->file==f], f->nname, f->name);
1167 rbuf = bytetorune(buf, &i);
1169 match = rxexecute(nil, rbuf, 0, i, &s);
1175 charaddr(long l, Address addr, int sign)
1178 addr.r.q0 = addr.r.q1 = l;
1180 addr.r.q1 = addr.r.q0 -= l;
1182 addr.r.q0 = addr.r.q1 += l;
1183 if(addr.r.q0<0 || addr.r.q1>addr.f->nc)
1184 editerror("address out of range");
1189 lineaddr(long l, Address addr, int sign)
1200 if(sign==0 || addr.r.q1==0){
1201 a.r.q0 = a.r.q1 = 0;
1207 if(sign==0 || addr.r.q1==0){
1212 n = textreadc(f->curtext, p++)=='\n';
1216 editerror("address out of range");
1217 if(textreadc(f->curtext, p++) == '\n')
1222 while(p < f->nc && textreadc(f->curtext, p++)!='\n')
1230 for(n = 0; n<l; ){ /* always runs once */
1233 editerror("address out of range");
1235 c = textreadc(f->curtext, p-1);
1236 if(c != '\n' || ++n != l)
1244 while(p > 0 && textreadc(f->curtext, p-1)!='\n') /* lines start after a newline */
1259 allfilecheck(Window *w, void *v)
1261 struct Filecheck *fp;
1266 if(w->body.file == fp->f)
1268 if(runeeq(fp->r, fp->nr, f->name, f->nname))
1269 warning(nil, "warning: duplicate file name \"%.*S\"\n", fp->nr, fp->r);
1273 cmdname(File *f, String *str, int set)
1277 struct Filecheck fc;
1284 /* no name; use existing */
1287 r = runemalloc(f->nname+1);
1288 runemove(r, f->name, f->nname);
1291 s = skipbl(s, n, &n);
1296 r = runemalloc(n+1);
1299 newname = dirname(f->curtext, runestrdup(s), n);
1301 r = runemalloc(n+1); /* NUL terminate */
1302 runemove(r, newname.r, n);
1308 allwindows(allfilecheck, &fc);
1313 if(set && !runeeq(r, n, f->name, f->nname)){
1316 f->curtext->w->dirty = TRUE;
1317 winsetname(f->curtext->w, r, n);