Re: regular expression to get the tablename.column

I was able to do this with and and or but it wouldn't permit using && or ||. It complained Can't modify logical and (&&) in scalar assignment at -e line 1, at EOF. I don't understand this.

perl -F/;/ -lane "/TABLE;(.+)/ and $t=$1 or print qq($t.$F[1])" o33.tx
+t
[download]

Chris Update: Thanks for the explanation ikegami.

Comment on Re: regular expression to get the tablename.column_name Download Code

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Re^2: regular expression to get the tablename.column_name by ikegami (Patriarch) on Oct 18, 2006 at 04:11 UTC
Operator precedence `a && b=c \|\| d === (a && b) = (c \|\| d) a and b=c or d === (a and (b=c)) or d` [download]	[reply] [d/l]
Re^2: regular expression to get the tablename.column_name by greatshots (Pilgrim) on Oct 18, 2006 at 04:08 UTC
`perl -F/;/ -lane "/TABLE;(.+)/ and $t=$1 or print qq($t.$F[1])" o33.tx +t` [download] Oops !! still I did not get the prompt. keeps on running	[reply] [d/l]
Re^3: regular expression to get the tablename.column_name by ikegami (Patriarch) on Oct 18, 2006 at 04:14 UTC
Unlike the OP's version, your version won't handle blank lines or lines other than TABLE and COLUMN properly. If that's acceptable, then the following is even shorter: `perl -nle "/TABLE;(.)/?($t=$1):/;(.);/&&print qq($t.$1)" o33.txt` [download]	[reply] [d/l]