Re^2: Need to save a single line from delete on some special condition

Thank you Eily for looking and understanding the issue.

Yes the three assumptions you mentioned are accurate. I am trying a simple solution "read a line, don't print it when conditions are met" won't work with my new requirement, as "timing(" occurs after the line I want to delete. I'll have to rewrite the code to read one whole " pin(..) { ... }" section in, decide which lines to delete and then dump it to the output. As I have several block-type statements I will either need to count the open brackets or write a real parser for the given syntax. And This is getting complex

I am using the code, but every time I am getting the issue "timing event not found", what is wrong here?

 perl -0777 -ne ' s/(pin\s*\(".+?"?\)\s+\{.+?\})/$x=$1;if($x=~m!timing
+\s*\(\)! and $x=~m!direction : output!){$x=~s!^\s*max_transition.+?\n
+!!mg};$x/gse ; print ' <INPUT_FILE>
[download]

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Re^3: Need to save a single line from delete on some special condition by Eily (Monsignor) on Mar 26, 2019 at 13:11 UTC
the three assumptions you mentioned are accurate If you're really sure about the indentation something like that can help : use strict; use warnings; use v5.10; my $data = do { local $/; <DATA> }; my @sections = split /(\s{4}pin.*?\s{4}\})/s, $data; for (@sections) { say; say '-' x 24; } __END__ cell (lib_1) { dont_use : true ; dont_touch : true ; pin ("HIZIBI_IN_1") { direction : input ; clock : true ; max_transition : 1 ; capacitance : 12 ; } pin ("HIZIBI_79") { direction : output ; max_transition : 10; min_capacitance : 3 ; } pin ("HIZIBI_IN_1") { direction : input ; clock : true ; max_transition : 1 ; capacitance : 1 ; } pin ("HIZIBI_78") { direction : output ; max_transition : 10; min_capacitance : 34 ; capacitance : 34 ; } pin ("HIZIBI") { direction : output ; clock : true ; max_transition : 20; related_power_pin : VDD ; related_ground_pin : VSS ; timing () { cell_fall (into_f1) { index_1("1,2,3,4,5") ; index_2("1,2,3,4,5") ; values("13, 13, 14, 16, 18",\ "13, 14, 15, 16, 19",\ "14, 15, 16, 17, 20",\ "15, 15, 16, 18, 20",\ "15, 16, 17, 18, 21") ; } } } } [download] It's very rough, and assumes a very consistent indentation. It divides the input into section (even empty ones between the pins but that shouldn't be an issue): cell (lib_1) { dont_use : true ; dont_touch : true ; ------------------------ pin ("HIZIBI_IN_1") { direction : input ; clock : true ; max_transition : 1 ; capacitance : 12 ; } ------------------------ ------------------------ pin ("HIZIBI_79") { direction : output ; max_transition : 10; min_capacitance : 3 ; } ------------------------ ------------------------ pin ("HIZIBI_IN_1") { direction : input ; clock : true ; max_transition : 1 ; capacitance : 1 ; } ------------------------ ------------------------ pin ("HIZIBI_78") { direction : output ; max_transition : 10; min_capacitance : 34 ; capacitance : 34 ; } ------------------------ ------------------------ pin ("HIZIBI") { direction : output ; clock : true ; max_transition : 20; related_power_pin : VDD ; related_ground_pin : VSS ; timing () { cell_fall (into_f1) { index_1("1,2,3,4,5") ; index_2("1,2,3,4,5") ; values("13, 13, 14, 16, 18",\ "13, 14, 15, 16, 19",\ "14, 15, 16, 17, 20",\ "15, 15, 16, 18, 20",\ "15, 16, 17, 18, 21") ; } ------------------------ } } } ------------------------ [download] Edit: it also assumes that the file is not so big that you can't read it all at once.	[reply] [d/l] [select]
Re^4: Need to save a single line from delete on some special condition by anirbanphys (Beadle) on Mar 26, 2019 at 14:30 UTC
Thank you for helping me. Now I need to find "direction : output", so we have here for pin HIZIBI_79, HIZIBI_78 and HIZIBI. But only pin HIZIBI is containing "timing" group, so for this pin we need to delete "max_transition" line and have to print the final output put file. Please refer OUT_FILE at he beginning of the post. And pin name can be anything. Can we add the logic inside foreach loop?	[reply]
Re^5: Need to save a single line from delete on some special condition by Eily (Monsignor) on Mar 27, 2019 at 08:45 UTC
Did you manage do use the code I proposed you? If so, could you show us the updated code and explain where it is lacking. Otherwise, where did you get stuck with it? FYI, Although more complex, clueless newvie's proposition is really more robust.	[reply]