printing is not printing the full string

greatshots has asked for the wisdom of the Perl Monks concerning the following question:

monks,

open ( SMI, "schema_migration.csv") or die "$!";
# buffering the newschema
{
    @schema_migration = <SMI>;
    map { $_ =~ s/\n//g } @schema_migration;
}

print "\n";
print "\nout :$schema_migration[3]:\n"; exit;
[download]

Output

:ut :nokia_card_traffic_classes_raw.day,nokia_card_traffic_classes_dl_
+raw.day
[download]

From print statment the first character is not getting printed in stdout. wondering, why it happened so ! what eats the 'o' from printing. Os or my program ?

Comment on printing is not printing the full string Select or Download Code

Replies are listed 'Best First'.
Re: printing is not printing the full string by Crackers2 (Parson) on Oct 30, 2006 at 03:42 UTC
Just a hunch... maybe your data contains both carriage returns and line feeds, and you're only removing the line feeds? So the last character of `$schema_migration[3]` puts the cursor back to the left, causing the : to overwrite the 'o' of 'out'	[reply] [d/l]
Re^2: printing is not printing the full string by greatshots (Pilgrim) on Oct 30, 2006 at 03:48 UTC
thanks a lot Crackers. `# buffering the newschema { @schema_migration = <SMI>; map { $_ =~ s/[\n\r]//g } @schema_migration; } print "\n"; print "\nout :$schema_migration[3]:\n"; exit;` [download] the above correction worked for me as expected. thanks once again.	[reply] [d/l]
Re^3: printing is not printing the full string by holcapek (Sexton) on Oct 30, 2006 at 06:34 UTC
IMO `s/\r?\n//` is more general as it removes `\r` only if present (Windows) yet `\n` everytime (both Windows and Un*x). (No one cares of old MacOS (-; )	[reply] [d/l] [select]
Re: printing is not printing the full string by GrandFather (Saint) on Oct 30, 2006 at 03:09 UTC
Your output simply does not match the code you provide. How about providing a sample that demonstrates the problem and can be run without any external dependencies. See I know what I mean. Why don't you? for some tips. DWIM is Perl's answer to Gödel	[reply]
Re^2: printing is not printing the full string by greatshots (Pilgrim) on Oct 30, 2006 at 03:44 UTC
but, that is what the output I got. I am wondering really about the mismatch of my output.	[reply]
Re^3: printing is not printing the full string by GrandFather (Saint) on Oct 30, 2006 at 03:51 UTC
I think Crackers2++ probably has the right answer, but not by reproducing the problem given your sample. In general we are not mind readers and can't test the data you don't provide. If you include data in your sample we have a better chance of knowing where you are having trouble and are more likely to be able to help. The disadvantage of course is that you have to do a little more work yourself and may actually solve the problem. DWIM is Perl's answer to Gödel	[reply]