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Support	Scan operator Posted: Friday, June 17, 2005 12:45 PM (EST) Alain, The APL symbols don't show up in your message making it hard to read.  Please repost your message after having used the Preview option to verify the APL symbols appear correctly in your message. APL2000 Support
brent.hildebrand	Scan operator Posted: Friday, June 17, 2005 12:53 PM (EST) If you copy and paste the text into an APL session, and remove the "(match)" text, you can see the code. The problem with APLDN is that the Match character does not appear in the Browser. But if you copy and paste the text into APL, the match character magically reappears. I believe the original poster put the text "(match)" to show where that character was located.
Alain.AMIOUNI	Scan operator Posted: Friday, June 17, 2005 1:30 PM (EST)             © There is a glitch likely to    cause real problems in a program        © expecting a Scan derived function to return its argument if empty.        © Which should be the case.        © Here everything is OK.            A„2 0 0 2½0       A(match)­B„×™A ª A­(match)×\[2]A        A­(match)×\[3]A ª A­(match)×\A        1        1        1        1  0(match)­†B  1          © In what follows it is not anymore.                 A„2 0 0 2½›¼3          A­(match)B„×™A ª A(match)­×\[2]A         A(match)­×\[3]A ª A(match)­×\A        0        1        1        0  ' '(match)­†B       © Instead of 0 0 0  1
Alain.AMIOUNI	Scan operator Posted: Friday, June 17, 2005 1:33 PM (EST)             © There is a glitch likely to    cause real problems in a program        © expecting a Scan derived function to return its argument if empty.        © Which should be the case.        © Here everything is OK.            A„2 0 0 2½0       A(match)­B„×™A ª A­(match)×\[2]A        A­(match)×\[3]A ª A­(match)×\A        1        1        1        1  0(match)­†B  1          © In what follows it is not anymore.                 A„2 0 0 2½›¼3          A­(match)B„×™A ª A(match)­×\[2]A         A(match)­×\[3]A ª A(match)­×\A        0        1        1        0  ' '(match)­†B     © Instead of 0 0 0  1
Alain.AMIOUNI	Scan operator Posted: Friday, June 17, 2005 2:30 PM (EST) I must have clicked twice on the "Submit" button. Font I used is a bit large. Sorry.