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If all the lines are in an array, you could use grep to find each line. Arrange the tests in the order that you want the output.
C:\Users\Bill\forums\monks>type eshan_k.pl use strict; use warnings; my @text = do{undef $/; <DATA>}; my $line; ($line) = grep {/LumaIntraMode/} @text; if ($line =~ /\s*APP>\s*LumaIntraMode\s:(\w+),\suse_intrabc:(\d)/i) { print "Luma_mode = $1\n"; } ($line) = grep {/\sAPP\>\sIntraAngleDelta\s\:\s/} @text; if ($line =~ /\s*APP>\sIntraAngleDelta\s:\s(\d+)\s(\d+)/i) { print "Luma Angle : $1\n" } ($line) = grep {/ChromaIntraMode/} @text; if ($line =~ /\s*APP>\s*ChromaIntraMode\s\:(\w+)/i) { print "Chroma mode: $1\n"; } ($line) = grep {/ALPHA_U\:/} @text; if ($line =~ /\s*ALPHA_U: (\d+), ALPHA_V: (\d+), CFL_ALPHA_SIGN: (\d+) +/i) { print "CFL : $3\n"; } ($line) = grep {/\sAPP\>\sIntraAngleDelta\s\:\s/} @text; if ($line =~ /\s*APP>\sIntraAngleDelta\s:\s(\d+)\s(\d+)/i) { print "Chroma Angle : $2\n" } __DATA__ APP> LumaIntraMode :D45_PRED, use_intrabc:0 AED> Dif: 80369151, Rng: 34624, Cnt: 10, Ret: 6 AED> Dif: 642953215, Rng: 52408, Cnt: 7, Ret: 13 APP> ChromaIntraMode :UV_CFL_PRED AED> Dif: 22413311, Rng: 36032, Cnt: 2, Ret: 5 AED> Dif: 115632447, Rng: 63232, Cnt: 11, Ret: 3 APP> ALPHA_U: 48, ALPHA_V: 0, CFL_ALPHA_SIGN: 5, CFL_ALPHA_IDX: 48 APP> IntraAngleDelta : 3 0 C:\Users\Bill\forums\monks>perl eshan_k.pl Luma_mode = D45_PRED Luma Angle : 3 Chroma mode: UV_CFL_PRED CFL : 5 Chroma Angle : 0

Note: Minor corrections to several of the regexes and to the order of the tests.

Bill

In reply to Re: Ordering of print statements by BillKSmith
in thread Ordering of print statements by Eshan_k

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