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exec.c
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exec.c
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#include <u.h>
#include <libc.h>
#include <draw.h>
#include <thread.h>
#include <cursor.h>
#include <mouse.h>
#include <keyboard.h>
#include <frame.h>
#include <fcall.h>
#include <plumb.h>
#include <9pclient.h>
#include "dat.h"
#include "fns.h"
Buffer snarfbuf;
/*
* These functions get called as:
*
* fn(et, t, argt, flag1, flag1, flag2, s, n);
*
* Where the arguments are:
*
* et: the Text* in which the executing event (click) occurred
* t: the Text* containing the current selection (Edit, Cut, Snarf, Paste)
* argt: the Text* containing the argument for a 2-1 click.
* e->flag1: from Exectab entry
* e->flag2: from Exectab entry
* s: the command line remainder (e.g., "x" if executing "Dump x")
* n: length of s (s is *not* NUL-terminated)
*/
void doabort(Text*, Text*, Text*, int, int, Rune*, int);
void del(Text*, Text*, Text*, int, int, Rune*, int);
void delcol(Text*, Text*, Text*, int, int, Rune*, int);
void dotfiles(Text*, Text*, Text*, int, int, Rune*, int);
void dump(Text*, Text*, Text*, int, int, Rune*, int);
void edit(Text*, Text*, Text*, int, int, Rune*, int);
void xexit(Text*, Text*, Text*, int, int, Rune*, int);
void fontx(Text*, Text*, Text*, int, int, Rune*, int);
void get(Text*, Text*, Text*, int, int, Rune*, int);
void id(Text*, Text*, Text*, int, int, Rune*, int);
void incl(Text*, Text*, Text*, int, int, Rune*, int);
void indent(Text*, Text*, Text*, int, int, Rune*, int);
void xkill(Text*, Text*, Text*, int, int, Rune*, int);
void local(Text*, Text*, Text*, int, int, Rune*, int);
void look(Text*, Text*, Text*, int, int, Rune*, int);
void newcol(Text*, Text*, Text*, int, int, Rune*, int);
void paste(Text*, Text*, Text*, int, int, Rune*, int);
void put(Text*, Text*, Text*, int, int, Rune*, int);
void putall(Text*, Text*, Text*, int, int, Rune*, int);
void sendx(Text*, Text*, Text*, int, int, Rune*, int);
void sort(Text*, Text*, Text*, int, int, Rune*, int);
void tab(Text*, Text*, Text*, int, int, Rune*, int);
void zeroxx(Text*, Text*, Text*, int, int, Rune*, int);
typedef struct Exectab Exectab;
struct Exectab
{
Rune *name;
void (*fn)(Text*, Text*, Text*, int, int, Rune*, int);
int mark;
int flag1;
int flag2;
};
static Rune LAbort[] = { 'A', 'b', 'o', 'r', 't', 0 };
static Rune LCut[] = { 'C', 'u', 't', 0 };
static Rune LDel[] = { 'D', 'e', 'l', 0 };
static Rune LDelcol[] = { 'D', 'e', 'l', 'c', 'o', 'l', 0 };
static Rune LDelete[] = { 'D', 'e', 'l', 'e', 't', 'e', 0 };
static Rune LDump[] = { 'D', 'u', 'm', 'p', 0 };
//static Rune LEdit[] = { 'E', 'd', 'i', 't', 0 };
static Rune LEdit[] = { 'S', 0 };
static Rune LExit[] = { 'E', 'x', 'i', 't', 0 };
static Rune LFont[] = { 'F', 'o', 'n', 't', 0 };
static Rune LGet[] = { 'G', 'e', 't', 0 };
static Rune LID[] = { 'I', 'D', 0 };
static Rune LIncl[] = { 'I', 'n', 'c', 'l', 0 };
static Rune LIndent[] = { 'I', 'n', 'd', 'e', 'n', 't', 0 };
static Rune LKill[] = { 'K', 'i', 'l', 'l', 0 };
static Rune LLoad[] = { 'L', 'o', 'a', 'd', 0 };
static Rune LLocal[] = { 'L', 'o', 'c', 'a', 'l', 0 };
static Rune LLook[] = { 'L', 'o', 'o', 'k', 0 };
static Rune LNew[] = { 'N', 'e', 'w', 0 };
static Rune LNewcol[] = { 'N', 'e', 'w', 'c', 'o', 'l', 0 };
static Rune LPaste[] = { 'P', 'a', 's', 't', 'e', 0 };
static Rune LPut[] = { 'P', 'u', 't', 0 };
static Rune LPutall[] = { 'P', 'u', 't', 'a', 'l', 'l', 0 };
static Rune LRedo[] = { 'R', 'e', 'd', 'o', 0 };
static Rune LSend[] = { 'S', 'e', 'n', 'd', 0 };
static Rune LSnarf[] = { 'S', 'n', 'a', 'r', 'f', 0 };
static Rune LSort[] = { 'S', 'o', 'r', 't', 0 };
static Rune LTab[] = { 'T', 'a', 'b', 0 };
static Rune LUndo[] = { 'U', 'n', 'd', 'o', 0 };
static Rune LZerox[] = { 'Z', 'e', 'r', 'o', 'x', 0 };
Exectab exectab[] = {
{ LAbort, doabort, FALSE, XXX, XXX, },
{ LCut, cut, TRUE, TRUE, TRUE },
{ LDel, del, FALSE, FALSE, XXX },
{ LDelcol, delcol, FALSE, XXX, XXX },
{ LDelete, del, FALSE, TRUE, XXX },
{ LDump, dump, FALSE, TRUE, XXX },
{ LEdit, edit, FALSE, XXX, XXX },
{ LExit, xexit, FALSE, XXX, XXX },
{ LFont, fontx, FALSE, XXX, XXX },
{ LGet, get, FALSE, TRUE, XXX },
{ LID, id, FALSE, XXX, XXX },
{ LIncl, incl, FALSE, XXX, XXX },
{ LIndent, indent, FALSE, XXX, XXX },
{ LKill, xkill, FALSE, XXX, XXX },
{ LLoad, dump, FALSE, FALSE, XXX },
{ LLocal, local, FALSE, XXX, XXX },
{ LLook, look, FALSE, XXX, XXX },
{ LNew, new, FALSE, XXX, XXX },
{ LNewcol, newcol, FALSE, XXX, XXX },
{ LPaste, paste, TRUE, TRUE, XXX },
{ LPut, put, FALSE, XXX, XXX },
{ LPutall, putall, FALSE, XXX, XXX },
{ LRedo, undo, FALSE, FALSE, XXX },
{ LSend, sendx, TRUE, XXX, XXX },
{ LSnarf, cut, FALSE, TRUE, FALSE },
{ LSort, sort, FALSE, XXX, XXX },
{ LTab, tab, FALSE, XXX, XXX },
{ LUndo, undo, FALSE, TRUE, XXX },
{ LZerox, zeroxx, FALSE, XXX, XXX },
{ nil, 0, 0, 0, 0 }
};
Exectab*
lookup(Rune *r, int n)
{
Exectab *e;
int nr;
r = skipbl(r, n, &n);
if(n == 0)
return nil;
findbl(r, n, &nr);
nr = n-nr;
for(e=exectab; e->name; e++)
if(runeeq(r, nr, e->name, runestrlen(e->name)) == TRUE)
return e;
return nil;
}
int
isexecc(int c)
{
if(isfilec(c))
return 1;
return c=='<' || c=='|' || c=='>';
}
void
execute(Text *t, uint aq0, uint aq1, int external, Text *argt)
{
uint q0, q1;
Rune *r, *s;
char *b, *a, *aa;
Exectab *e;
int c, n, f;
Runestr dir;
q0 = aq0;
q1 = aq1;
if(q1 == q0){ /* expand to find word (actually file name) */
/* if in selection, choose selection */
if(t->q1>t->q0 && t->q0<=q0 && q0<=t->q1){
q0 = t->q0;
q1 = t->q1;
}else{
while(q1<t->file->b.nc && isexecc(c=textreadc(t, q1)) && c!=':')
q1++;
while(q0>0 && isexecc(c=textreadc(t, q0-1)) && c!=':')
q0--;
if(q1 == q0)
return;
}
}
r = runemalloc(q1-q0);
bufread(&t->file->b, q0, r, q1-q0);
e = lookup(r, q1-q0);
if(!external && t->w!=nil && t->w->nopen[QWevent]>0){
f = 0;
if(e)
f |= 1;
if(q0!=aq0 || q1!=aq1){
bufread(&t->file->b, aq0, r, aq1-aq0);
f |= 2;
}
aa = getbytearg(argt, TRUE, TRUE, &a);
if(a){
if(strlen(a) > EVENTSIZE){ /* too big; too bad */
free(aa);
free(a);
warning(nil, "argument string too long\n");
return;
}
f |= 8;
}
c = 'x';
if(t->what == Body)
c = 'X';
n = aq1-aq0;
if(n <= EVENTSIZE)
winevent(t->w, "%c%d %d %d %d %.*S\n", c, aq0, aq1, f, n, n, r);
else
winevent(t->w, "%c%d %d %d 0 \n", c, aq0, aq1, f, n);
if(q0!=aq0 || q1!=aq1){
n = q1-q0;
bufread(&t->file->b, q0, r, n);
if(n <= EVENTSIZE)
winevent(t->w, "%c%d %d 0 %d %.*S\n", c, q0, q1, n, n, r);
else
winevent(t->w, "%c%d %d 0 0 \n", c, q0, q1, n);
}
if(a){
winevent(t->w, "%c0 0 0 %d %s\n", c, utflen(a), a);
if(aa)
winevent(t->w, "%c0 0 0 %d %s\n", c, utflen(aa), aa);
else
winevent(t->w, "%c0 0 0 0 \n", c);
}
free(r);
free(aa);
free(a);
return;
}
if(e){
if(e->mark && seltext!=nil)
if(seltext->what == Body){
seq++;
filemark(seltext->w->body.file);
}
s = skipbl(r, q1-q0, &n);
s = findbl(s, n, &n);
s = skipbl(s, n, &n);
(*e->fn)(t, seltext, argt, e->flag1, e->flag2, s, n);
free(r);
return;
}
b = runetobyte(r, q1-q0);
free(r);
dir = dirname(t, nil, 0);
if(dir.nr==1 && dir.r[0]=='.'){ /* sigh */
free(dir.r);
dir.r = nil;
dir.nr = 0;
}
aa = getbytearg(argt, TRUE, TRUE, &a);
if(t->w)
incref(&t->w->ref);
run(t->w, b, dir.r, dir.nr, TRUE, aa, a, FALSE);
}
char*
printarg(Text *argt, uint q0, uint q1)
{
char *buf;
if(argt->what!=Body || argt->file->name==nil)
return nil;
buf = emalloc(argt->file->nname+32);
if(q0 == q1)
sprint(buf, "%.*S:#%d", argt->file->nname, argt->file->name, q0);
else
sprint(buf, "%.*S:#%d,#%d", argt->file->nname, argt->file->name, q0, q1);
return buf;
}
char*
getarg(Text *argt, int doaddr, int dofile, Rune **rp, int *nrp)
{
int n;
Expand e;
char *a;
*rp = nil;
*nrp = 0;
if(argt == nil)
return nil;
a = nil;
textcommit(argt, TRUE);
if(expand(argt, argt->q0, argt->q1, &e)){
free(e.bname);
if(e.nname && dofile){
e.name = runerealloc(e.name, e.nname+1);
if(doaddr)
a = printarg(argt, e.q0, e.q1);
*rp = e.name;
*nrp = e.nname;
return a;
}
free(e.name);
}else{
e.q0 = argt->q0;
e.q1 = argt->q1;
}
n = e.q1 - e.q0;
*rp = runemalloc(n+1);
bufread(&argt->file->b, e.q0, *rp, n);
if(doaddr)
a = printarg(argt, e.q0, e.q1);
*nrp = n;
return a;
}
char*
getbytearg(Text *argt, int doaddr, int dofile, char **bp)
{
Rune *r;
int n;
char *aa;
*bp = nil;
aa = getarg(argt, doaddr, dofile, &r, &n);
if(r == nil)
return nil;
*bp = runetobyte(r, n);
free(r);
return aa;
}
void
doabort(Text *__0, Text *_0, Text *_1, int _2, int _3, Rune *_4, int _5)
{
static int n;
USED(__0);
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);
if(n++ == 0)
warning(nil, "executing Abort again will call abort()\n");
else
abort();
}
void
newcol(Text *et, Text *_0, Text *_1, int _2, int _3, Rune *_4, int _5)
{
Column *c;
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);
c = rowadd(et->row, nil, -1);
if(c)
winsettag(coladd(c, nil, nil, -1));
}
void
delcol(Text *et, Text *_0, Text *_1, int _2, int _3, Rune *_4, int _5)
{
int i;
Column *c;
Window *w;
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);
c = et->col;
if(c==nil || colclean(c)==0)
return;
for(i=0; i<c->nw; i++){
w = c->w[i];
if(w->nopen[QWevent]+w->nopen[QWaddr]+w->nopen[QWdata]+w->nopen[QWxdata] > 0){
warning(nil, "can't delete column; %.*S is running an external command\n", w->body.file->nname, w->body.file->name);
return;
}
}
rowclose(et->col->row, et->col, TRUE);
}
void
del(Text *et, Text *_0, Text *_1, int flag1, int _2, Rune *_3, int _4)
{
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
if(et->col==nil || et->w == nil)
return;
if(flag1 || et->w->body.file->ntext>1 || winclean(et->w, FALSE))
colclose(et->col, et->w, TRUE);
}
void
sort(Text *et, Text *_0, Text *_1, int _2, int _3, Rune *_4, int _5)
{
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);
if(et->col)
colsort(et->col);
}
uint
seqof(Window *w, int isundo)
{
/* if it's undo, see who changed with us */
if(isundo)
return w->body.file->seq;
/* if it's redo, see who we'll be sync'ed up with */
return fileredoseq(w->body.file);
}
void
undo(Text *et, Text *_0, Text *_1, int flag1, int _2, Rune *_3, int _4)
{
int i, j;
Column *c;
Window *w;
uint seq;
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
if(et==nil || et->w== nil)
return;
seq = seqof(et->w, flag1);
if(seq == 0){
/* nothing to undo */
return;
}
/*
* Undo the executing window first. Its display will update. other windows
* in the same file will not call show() and jump to a different location in the file.
* Simultaneous changes to other files will be chaotic, however.
*/
winundo(et->w, flag1);
for(i=0; i<row.ncol; i++){
c = row.col[i];
for(j=0; j<c->nw; j++){
w = c->w[j];
if(w == et->w)
continue;
if(seqof(w, flag1) == seq)
winundo(w, flag1);
}
}
}
char*
getname(Text *t, Text *argt, Rune *arg, int narg, int isput)
{
char *s;
Rune *r;
int i, n, promote;
Runestr dir;
getarg(argt, FALSE, TRUE, &r, &n);
promote = FALSE;
if(r == nil)
promote = TRUE;
else if(isput){
/* if are doing a Put, want to synthesize name even for non-existent file */
/* best guess is that file name doesn't contain a slash */
promote = TRUE;
for(i=0; i<n; i++)
if(r[i] == '/'){
promote = FALSE;
break;
}
if(promote){
t = argt;
arg = r;
narg = n;
}
}
if(promote){
n = narg;
if(n <= 0){
s = runetobyte(t->file->name, t->file->nname);
return s;
}
/* prefix with directory name if necessary */
dir.r = nil;
dir.nr = 0;
if(n>0 && arg[0]!='/'){
dir = dirname(t, nil, 0);
if(dir.nr==1 && dir.r[0]=='.'){ /* sigh */
free(dir.r);
dir.r = nil;
dir.nr = 0;
}
}
if(dir.r){
r = runemalloc(dir.nr+n+1);
runemove(r, dir.r, dir.nr);
free(dir.r);
if(dir.nr>0 && r[dir.nr]!='/' && n>0 && arg[0]!='/')
r[dir.nr++] = '/';
runemove(r+dir.nr, arg, n);
n += dir.nr;
}else{
r = runemalloc(n+1);
runemove(r, arg, n);
}
}
s = runetobyte(r, n);
free(r);
if(strlen(s) == 0){
free(s);
s = nil;
}
return s;
}
void
zeroxx(Text *et, Text *t, Text *_1, int _2, int _3, Rune *_4, int _5)
{
Window *nw;
int c, locked;
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);
locked = FALSE;
if(t!=nil && t->w!=nil && t->w!=et->w){
locked = TRUE;
c = 'M';
if(et->w)
c = et->w->owner;
winlock(t->w, c);
}
if(t == nil)
t = et;
if(t==nil || t->w==nil)
return;
t = &t->w->body;
if(t->w->isdir)
warning(nil, "%.*S is a directory; Zerox illegal\n", t->file->nname, t->file->name);
else{
nw = coladd(t->w->col, nil, t->w, -1);
/* ugly: fix locks so w->unlock works */
winlock1(nw, t->w->owner);
}
if(locked)
winunlock(t->w);
}
void
get(Text *et, Text *t, Text *argt, int flag1, int _0, Rune *arg, int narg)
{
char *name;
Rune *r;
int i, n, dirty, samename, isdir;
Window *w;
Text *u;
Dir *d;
USED(_0);
if(flag1)
if(et==nil || et->w==nil)
return;
if(!et->w->isdir && (et->w->body.file->b.nc>0 && !winclean(et->w, TRUE)))
return;
w = et->w;
t = &w->body;
name = getname(t, argt, arg, narg, FALSE);
if(name == nil){
warning(nil, "no file name\n");
return;
}
if(t->file->ntext>1){
d = dirstat(name);
isdir = (d!=nil && (d->qid.type & QTDIR));
free(d);
if(isdir){
warning(nil, "%s is a directory; can't read with multiple windows on it\n", name);
return;
}
}
r = bytetorune(name, &n);
for(i=0; i<t->file->ntext; i++){
u = t->file->text[i];
/* second and subsequent calls with zero an already empty buffer, but OK */
textreset(u);
windirfree(u->w);
}
samename = runeeq(r, n, t->file->name, t->file->nname);
textload(t, 0, name, samename);
if(samename){
t->file->mod = FALSE;
dirty = FALSE;
}else{
t->file->mod = TRUE;
dirty = TRUE;
}
for(i=0; i<t->file->ntext; i++)
t->file->text[i]->w->dirty = dirty;
free(name);
free(r);
winsettag(w);
t->file->unread = FALSE;
for(i=0; i<t->file->ntext; i++){
u = t->file->text[i];
textsetselect(&u->w->tag, u->w->tag.file->b.nc, u->w->tag.file->b.nc);
textscrdraw(u);
}
}
void
putfile(File *f, int q0, int q1, Rune *namer, int nname)
{
uint n, m;
Rune *r;
char *s, *name;
int i, fd, q;
Dir *d, *d1;
Window *w;
int isapp;
w = f->curtext->w;
name = runetobyte(namer, nname);
d = dirstat(name);
if(d!=nil && runeeq(namer, nname, f->name, f->nname)){
/* f->mtime+1 because when talking over NFS it's often off by a second */
if(f->dev!=d->dev || f->qidpath!=d->qid.path || abs(f->mtime-d->mtime) > 1){
if(f->unread)
warning(nil, "%s not written; file already exists\n", name);
else
warning(nil, "%s modified%s%s since last read\n\twas %t; now %t\n", name, d->muid[0]?" by ":"", d->muid, f->mtime, d->mtime);
f->dev = d->dev;
f->qidpath = d->qid.path;
f->mtime = d->mtime;
goto Rescue1;
}
}
fd = create(name, OWRITE, 0666);
if(fd < 0){
warning(nil, "can't create file %s: %r\n", name);
goto Rescue1;
}
r = fbufalloc();
s = fbufalloc();
free(d);
d = dirfstat(fd);
isapp = (d!=nil && d->length>0 && (d->qid.type&QTAPPEND));
if(isapp){
warning(nil, "%s not written; file is append only\n", name);
goto Rescue2;
}
for(q=q0; q<q1; q+=n){
n = q1 - q;
if(n > BUFSIZE/UTFmax)
n = BUFSIZE/UTFmax;
bufread(&f->b, q, r, n);
m = snprint(s, BUFSIZE+1, "%.*S", n, r);
if(write(fd, s, m) != m){
warning(nil, "can't write file %s: %r\n", name);
goto Rescue2;
}
}
if(runeeq(namer, nname, f->name, f->nname)){
if(q0!=0 || q1!=f->b.nc){
f->mod = TRUE;
w->dirty = TRUE;
f->unread = TRUE;
}else{
// In case the file is on NFS, reopen the fd
// before dirfstat to cause the attribute cache
// to be updated (otherwise the mtime in the
// dirfstat below will be stale and not match
// what NFS sees). The file is already written,
// so this should be a no-op when not on NFS.
// Opening for OWRITE (but no truncation)
// in case we don't have read permission.
// (The create above worked, so we probably
// still have write permission.)
close(fd);
fd = open(name, OWRITE);
d1 = dirfstat(fd);
if(d1 != nil){
free(d);
d = d1;
}
f->qidpath = d->qid.path;
f->dev = d->dev;
f->mtime = d->mtime;
f->mod = FALSE;
w->dirty = FALSE;
f->unread = FALSE;
}
for(i=0; i<f->ntext; i++){
f->text[i]->w->putseq = f->seq;
f->text[i]->w->dirty = w->dirty;
}
}
fbuffree(s);
fbuffree(r);
free(d);
free(namer);
free(name);
close(fd);
winsettag(w);
return;
Rescue2:
fbuffree(s);
fbuffree(r);
close(fd);
/* fall through */
Rescue1:
free(d);
free(namer);
free(name);
}
void
put(Text *et, Text *_0, Text *argt, int _1, int _2, Rune *arg, int narg)
{
int nname;
Rune *namer;
Window *w;
File *f;
char *name;
USED(_0);
USED(_1);
USED(_2);
if(et==nil || et->w==nil || et->w->isdir)
return;
w = et->w;
f = w->body.file;
name = getname(&w->body, argt, arg, narg, TRUE);
if(name == nil){
warning(nil, "no file name\n");
return;
}
namer = bytetorune(name, &nname);
putfile(f, 0, f->b.nc, namer, nname);
free(name);
}
void
dump(Text *_0, Text *_1, Text *argt, int isdump, int _2, Rune *arg, int narg)
{
char *name;
USED(_0);
USED(_1);
USED(_2);
if(narg)
name = runetobyte(arg, narg);
else
getbytearg(argt, FALSE, TRUE, &name);
if(isdump)
rowdump(&row, name);
else
rowload(&row, name, FALSE);
free(name);
}
void
cut(Text *et, Text *t, Text *_0, int dosnarf, int docut, Rune *_2, int _3)
{
uint q0, q1, n, locked, c;
Rune *r;
USED(_0);
USED(_2);
USED(_3);
/*
* if not executing a mouse chord (et != t) and snarfing (dosnarf)
* and executed Cut or Snarf in window tag (et->w != nil),
* then use the window body selection or the tag selection
* or do nothing at all.
*/
if(et!=t && dosnarf && et->w!=nil){
if(et->w->body.q1>et->w->body.q0){
t = &et->w->body;
if(docut)
filemark(t->file); /* seq has been incremented by execute */
}else if(et->w->tag.q1>et->w->tag.q0)
t = &et->w->tag;
else
t = nil;
}
if(t == nil) /* no selection */
return;
locked = FALSE;
if(t->w!=nil && et->w!=t->w){
locked = TRUE;
c = 'M';
if(et->w)
c = et->w->owner;
winlock(t->w, c);
}
if(t->q0 == t->q1){
if(locked)
winunlock(t->w);
return;
}
if(dosnarf){
q0 = t->q0;
q1 = t->q1;
bufdelete(&snarfbuf, 0, snarfbuf.nc);
r = fbufalloc();
while(q0 < q1){
n = q1 - q0;
if(n > RBUFSIZE)
n = RBUFSIZE;
bufread(&t->file->b, q0, r, n);
bufinsert(&snarfbuf, snarfbuf.nc, r, n);
q0 += n;
}
fbuffree(r);
acmeputsnarf();
}
if(docut){
textdelete(t, t->q0, t->q1, TRUE);
textsetselect(t, t->q0, t->q0);
if(t->w){
textscrdraw(t);
winsettag(t->w);
}
}else if(dosnarf) /* Snarf command */
argtext = t;
if(locked)
winunlock(t->w);
}
void
paste(Text *et, Text *t, Text *_0, int selectall, int tobody, Rune *_1, int _2)
{
int c;
uint q, q0, q1, n;
Rune *r;
USED(_0);
USED(_1);
USED(_2);
/* if(tobody), use body of executing window (Paste or Send command) */
if(tobody && et!=nil && et->w!=nil){
t = &et->w->body;
filemark(t->file); /* seq has been incremented by execute */
}
if(t == nil)
return;
acmegetsnarf();
if(t==nil || snarfbuf.nc==0)
return;
if(t->w!=nil && et->w!=t->w){
c = 'M';
if(et->w)
c = et->w->owner;
winlock(t->w, c);
}
cut(t, t, nil, FALSE, TRUE, nil, 0);
q = 0;
q0 = t->q0;
q1 = t->q0+snarfbuf.nc;
r = fbufalloc();
while(q0 < q1){
n = q1 - q0;
if(n > RBUFSIZE)
n = RBUFSIZE;
if(r == nil)
r = runemalloc(n);
bufread(&snarfbuf, q, r, n);
textinsert(t, q0, r, n, TRUE);
q += n;
q0 += n;
}
fbuffree(r);
if(selectall)
textsetselect(t, t->q0, q1);
else
textsetselect(t, q1, q1);
if(t->w){
textscrdraw(t);
winsettag(t->w);
}
if(t->w!=nil && et->w!=t->w)
winunlock(t->w);
}
void
look(Text *et, Text *t, Text *argt, int _0, int _1, Rune *arg, int narg)
{
Rune *r;
int n;
USED(_0);
USED(_1);
if(et && et->w){
t = &et->w->body;
if(narg > 0){
search(t, arg, narg);
return;
}
getarg(argt, FALSE, FALSE, &r, &n);
if(r == nil){
n = t->q1-t->q0;
r = runemalloc(n);
bufread(&t->file->b, t->q0, r, n);
}
search(t, r, n);
free(r);
}
}
static Rune Lnl[] = { '\n', 0 };
void
sendx(Text *et, Text *t, Text *_0, int _1, int _2, Rune *_3, int _4)
{
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
if(et->w==nil)
return;
t = &et->w->body;
if(t->q0 != t->q1)
cut(t, t, nil, TRUE, FALSE, nil, 0);
textsetselect(t, t->file->b.nc, t->file->b.nc);
paste(t, t, nil, TRUE, TRUE, nil, 0);
if(textreadc(t, t->file->b.nc-1) != '\n'){
textinsert(t, t->file->b.nc, Lnl, 1, TRUE);
textsetselect(t, t->file->b.nc, t->file->b.nc);
}
t->iq1 = t->q1;
textshow(t, t->q1, t->q1, 1);
}
void
edit(Text *et, Text *_0, Text *argt, int _1, int _2, Rune *arg, int narg)
{
Rune *r;
int len;
USED(_0);
USED(_1);
USED(_2);
if(et == nil)
return;
getarg(argt, FALSE, TRUE, &r, &len);
seq++;
if(r != nil){
editcmd(et, r, len);
free(r);
}else
editcmd(et, arg, narg);
}
void
xexit(Text *et, Text *_0, Text *_1, int _2, int _3, Rune *_4, int _5)
{
USED(et);
USED(_0);
USED(_1);
USED(_2);
USED(_3);
USED(_4);
USED(_5);