Thankyou Gabriele, That by itself is useful to know. But, it still is different to what I was asking. My code was attempting to find an empty block. But not just any empty block it was a particular empty block. But find doesn't distinguish between particular empty blocks they look the same! Which I guess is reasonable. Yet I can store multiple different empty blocks inside another block such that they behave as references to blocks. Which is really handy. For example I used this to create bookmarks in some HTML I was creating. E.g my-html: [ <html> <body> <h1> ] append/only my-html my-bookmark: copy [] append my-html [</h1> </body> </html>] append my-bookmark "How to fill in after the fact with Rebol blocks" print my-html But I just can't use find to find those references.... my-html: [ <html> <body> <h1> ] append/only my-html my-bookmark-1: copy [] append my-html [</h1>] append/only my-html my-bookmark-2: copy [] append my-html [</body> </html>] What is the index position of the block referred to by my-bookmark-2 in my-html? >> index? find/only my-html my-bookmark-2 == 4 Nope it got it wrong, the answer I wanted was 6. But if I now do this append my-bookmark-2 "Fill in the body" and try the same question - it gets it right >> index? find/only my-html my-bookmark-2 == 6 Brett. ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, July 15, 2000 10:55 PM Subject: [REBOL] Re: Find cant find reference to block. Re: > Hello [EMAIL PROTECTED]! > > On 14-Lug-00, you wrote: > > G>>> find list select list 'a ; no good find can't find the > G>>> reference to the > G> block > > Hope this clears things up: > > >> find [a b c d e f g e g f h i j] [e g f] > == [e g f h i j] > >> find/only [a b c d e f g e g f h i j] [e g f] > == none > >> find/only [[a] [b]] [a] > == [[a] [b]] > >> find/only [[a] [b]] [b] > == [[b]] > > So: > > >> blk: [a ["a"] b ["b"]] > == [a ["a"] b ["b"]] > >> select blk 'a > == ["a"] > >> find/only blk select blk 'a > == [["a"] b ["b"]] > > But notice that that is the same as: > > >> next find blk 'a > == [["a"] b ["b"]] > > which does one search only. > > Regards, > Gabriele. > -- > Gabriele Santilli <[EMAIL PROTECTED]> - Amigan - REBOL programmer > Amiga Group Italia sez. L'Aquila -- http://www.amyresource.it/AGI/ >
