syntax error at 1186417.pl line 33, near "$1 :"

patch: 

- $new_to_old[$_] += ( $4 ? $4 : $5 ) - $5 + $2 - ( $1 : $1 ? $2 ) + (
+ $3 cmp 'c' )
+ $new_to_old[$_] += ( $4 ? $4 : $5 ) - $5 + $2 - ( $1 ? $1 : $2 ) + (
+ $3 cmp 'c' )

[download]
It seems a little convoluted.

For starters, to remove a bit convolutedness, I'd drop that ternary constructs and rewrite that line as 

$new_to_old[$_] += ( $4 || $5 ) - $5 + $2 - ( $1 || $2 ) + ( $3 cmp 'c
+' )

[download]
perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

In reply to Re: Determine new line number in revised file given old line number by shmem
in thread Determine new line number in revised file given old line number by ExReg

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