Re^6: Split output by tabs (not clear)

in reply to Re^5: Split output by tabs (not clear)
in thread Split output by tabs

Sorry I meant, the original file (orders) has blank values in some columns, i'd like for them to be omitted from the results (orders_today.txt) i.e not printed, is that possible?

Comment on Re^6: Split output by tabs (not clear)

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Re^7: Split output by tabs (not clear) by tobyink (Canon) on Nov 13, 2012 at 10:19 UTC
If you want to filter elements out of an array, use `grep` (see perlfunc). For example, to keep only strings which have a length of at least 1 character, you could use: `my @strings = split "\t", $line; my @keep = grep { length($_) >= 0 } @strings;` [download] This can be made more concise: `my @keep = grep { length($_) } split "\t", $line;` [download] Or even: `my @keep = grep length, split "\t", $line;` [download] `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^7: Split output by tabs (not clear)
by tobyink (Canon) on Nov 13, 2012 at 10:19 UTC

If you want to filter elements out of an array, use grep (see perlfunc). For example, to keep only strings which have a length of at least 1 character, you could use:

my @strings = split "\t", $line;
my @keep    = grep { length($_) >= 0 } @strings;
[download]

This can be made more concise:

my @keep = grep { length($_) } split "\t", $line;
[download]

Or even:

my @keep = grep length, split "\t", $line;
[download]

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

[reply]
[d/l]
[select]

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