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Add dollarsign support.

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This commit is contained in:
rsc 2005-03-14 21:02:14 +00:00
parent d96da29b37
commit d5c40a0da2
1 changed files with 20 additions and 8 deletions
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20
src/cmd/acme/look.c
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@ -455,6 +455,8 @@ dirname(Text *t, Rune *r, int n)
b = nil;
if(t==nil || t->w==nil)
goto Rescue;
if(dodollarsigns && n>=1 && r[0]=='$')
expandenv(&r, &n);
nt = t->w->tag.file->b.nc;
if(nt == 0)
goto Rescue;
@ -472,9 +474,12 @@ dirname(Text *t, Rune *r, int n)
}
if(slash < 0)
goto Rescue;
runemove(b+slash+1, r, n);
slash++;
if(dodollarsigns && expandenv(&b, &slash))
b = runerealloc(b, slash+n);
runemove(b+slash, r, n);
free(r);
return cleanrname(runestr(b, slash+1+n));
return cleanrname(runestr(b, slash+n));
Rescue:
free(b);
@ -535,7 +540,7 @@ expandfile(Text *t, uint q0, uint q1, Expand *e)
if(n == 0)
return FALSE;
/* see if it's a file name */
r = runemalloc(n);
r = runemalloc(n+1); /* +1 for possible $ below */
bufread(&t->file->b, q0, r, n);
/* first, does it have bad chars? */
nname = -1;
@ -551,9 +556,12 @@ expandfile(Text *t, uint q0, uint q1, Expand *e)
}
if(nname == -1)
nname = n;
for(i=0; i<nname; i++)
for(i=0; i<nname; i++){
if(dodollarsigns && i==0 && r[0]=='$')
continue;
if(!isfilec(r[i]))
goto Isntfile;
}
/*
* See if it's a file name in <>, and turn that into an include
* file name if so. Should probably do it for "" too, but that's not
@ -567,11 +575,15 @@ expandfile(Text *t, uint q0, uint q1, Expand *e)
}
else if(amin == q0)
goto Isfile;
else{
if(dodollarsigns && r[0] == '$')
expandenv(&r, &nname);
else{
rs = dirname(t, r, nname);
r = rs.r;
nname = rs.nr;
}
}
e->bname = runetobyte(r, nname);
/* if it's already a window name, it's a file */
w = lookfile(r, nname);