Thanks Juan.
Stef
As a point of comparison for correctness, for the following...
Transcript clear.
[ $a asciiValue to: $z asciiValue do: [ :c |
[ 1 to: 9 do: [ :i | Transcript show: c asCharacter printString , i
printString , ' ' ] ] forkAt: 40
].
] forkAt: 41
Squeak 4.5 gives...
$a1 $a2 $a3 $a4 $a5 $a6 $a7 $a8 $a9 $b1 $b2 $b3 $b4 $b5 $b5 $c1 $c2
$c3 $c4
$c5 $c6 $c7 $c8 $c9 $d1 $d2 $d3 $d4 $d5 $d6 $d7 $d8 $d9 $d9 $e2 $g2
$h2 $h2
$i2 $k2 $k2 $l2 $n2 $n2 $o2 $o2 $r2 $s2 $t2 $u2 $u2 $v2 $x2 $y2 $z2
$z2 $b7
$f3 $e3 $e3 $g3 $j3 $h3 $i3 $k3 $k3 $m3 $n3 $p3 $p3 $q3 $o3 $s3 $t3
$t3 $u3
$v3 $x3 $y3 $z3 $b8 $f4 $e4 $e4 $g4 $h4 $i4 $k4 $l4 $m4 $m4 $n4 $r4
$q4 $o4
$o4 $s4 $w4 $u4 $u4 $v4 $y4 $y4 $z4 $z4 $f5 $j5 $j5 $g5 $i5 $k5 $l5
$l5 $m5
$m5 $n5 $q5 $o5 $s5 $s5 $t5 $u5 $u5 $x5 $y5 $z5 $f6 $f6 $h6 $h6 $g6
$g6 $k6
$p6 $m6 $r6 $r6 $n6 $o6 $s6 $s6 $w6 $u6 $x6 $x6 $e7 $f7 $j7 $h7 $h7
$i7 $l7
$l7 $k7 $m7 $m7 $q7 $n7 $n7 $o7 $t7 $w7 $w7 $u7 $v7 $x7 $z7 $z7 $e8
$e8 $h8
$g8 $i8 $i8 $l8 $k8 $k8 $m8 $q8 $n8 $n8 $s8 $t8 $w8 $y8 $y8 $u8 $x8
$z8 $f9
$f9 $e9 $h9 $h9 $g9 $p9 $p9 $k9 $r9 $r9 $m9 $n9 $n9 $o9 $t9 $t9 $w9
$v9 $u9
$u9 $z9 $x9
Pharo 50041 gives...
$a1 $a2 $a3 $a4 $a5 $a6 $a7 $a8 $a9 $b1 $b2 $b3 $b4 $b5 $b6 $b7 $b8
$b9 $c1
$c2 $c3 $c4 $c5 $c6 $c7 $c8 $c9 $d1 $d2 $d3 $d4 $d5 $d6 $d7 $d8 $d9
$e1 $e2
$e3 $e4 $e5 $e6 $e7 $e8 $e9 $f1 $f2 $f3 $f4 $f5 $f6 $f7 $f8 $f9 $g1
$g2 $g3
$g4 $g5 $g6 $g7 $g8 $g9 $h1 $h2 $h3 $h4 $h5 $h6 $h7 $h8 $h9 $i1 $i2
$i3 $i4
$i5 $i6 $i7 $i8 $i9 $j1 $j2 $j3 $j4 $j5 $j6 $j7 $j8 $j9 $k1 $k2 $k3
$k4 $k5
$k6 $k7 $k8 $k9 $l1 $l2 $l3 $l4 $l5 $l6 $l7 $l8 $l9 $m1 $m2 $m3 $m4
$m5 $m6
$m7 $m8 $m9 $n1 $n2 $n3 $n4 $n5 $n6 $n7 $n8 $n9 $o1 $o2 $o3 $o4 $o5
$o6 $o7
$o8 $o9 $p1 $p2 $p3 $p4 $p5 $p6 $p7 $p8 $p9 $q1 $q2 $q3 $q4 $q5 $q6
$q7 $q8
$q9 $r1 $r2 $r3 $r4 $r5 $r6 $r7 $r8 $r9 $s1 $s2 $s3 $s4 $s5 $s6 $s7
$s8 $s9
$t1 $t2 $t3 $t4 $t5 $t6 $t7 $t8 $t9 $u1 $u2 $u3 $u4 $u5 $u6 $u7 $u8
$u9 $v1
$v2 $v3 $v4 $v5 $v6 $v7 $v8 $v9 $w1 $w2 $w3 $w4 $w5 $w6 $w7 $w8 $w9
$x1 $x2
$x3 $x4 $x5 $x6 $x7 $x8 $x9 $y1 $y2 $y3 $y4 $y5 $y6 $y7 $y8 $y9 $z1
$z2 $z3
$z4 $z5 $z6 $z7 $z8 $z9
(start your comparison at $b5)
So in one axis Pharo has improved Transcript, but we didn't notice the
significance of the use case we lost.
cheers -ben
Please take a good look at Cuis' Transcript and consider using it.
By default, the display is updated immediately, but without calling
Morphic, it can even work with no UI framework at all. It does updates
faster than Squeak or Visualworks:
Time millisecondsToRun: [ 1000 timesRepeat: [ Transcript
show: 'x' ] ]. 763.
But if you want minimum overhead without immediate feedback:
Time millisecondsToRun: [ Transcript showOnDisplay: false.
1000 timesRepeat: [ Transcript show: 'x' ]. Transcript showOnDisplay:
true ]. 1.
"As fast as Pharo"
It is also thread safe, and for Ben's example:
Transcript clear.
[
$a asciiValue to: $z asciiValue do: [ :c |
[ 1 to: 9 do: [ :i | Transcript show: c asCharacter
printString , i printString , ' ' ] ] forkAt: 40
].
] forkAt: 41
it gives the same result as Pharo.
The fact that the updates are not bound to Morphic also means that it
is possible to do #show: deep in Morphic logic, without causing
infinite loops or recursions, and get immediate feedback. It has
proved to be a useful aid in debugging Morphic code.
Cheers,
Juan Vuletich
