Re^2: Extracting selected fields form file record (updated)

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Re^3: Extracting selected fields form file record (don't use File::Slurp References) by eyepopslikeamosquito (Archbishop) on Feb 08, 2022 at 11:40 UTC
Noone even mentioned File::Slurp! :) If you must use a module for this, may I suggest Path::Tiny or File::Slurper? See File::Slurp is broken and wrong by Leon Timmermans for why. ... though I agree with haukex below that it's better to do it idiomatically without a module: `my $string = do { local $/; <$fh> }` File Slurping References Any downsides to this slurp idiom? by haukex (2018) - prior discussion of this problem Timing and timing out Unix commands by me (2003) - crusty old code that contained a simple `slurp_file` function References Added Later Does Perl have a baked-in memory llimit? by cormanaz (2023) - got an out of memory error slurping a half-gig file with File::Slurp Re^3: Does Perl have a baked-in memory llimit? by me (2023) - after being provoked by Bod I advised him to never use File::Slurp Re^3: Does Perl have a baked-in memory llimit? by hippo (2023) - ... suggested Bod try Path::Tiny instead of File::Slurp Re^2: how perl do 'envsubst' by vincentaxhe (2024) - expressed surprise that Path::Tiny could be used to slurp files Can't decode ill-formed UTF-8 octet sequence by Veraellyunjie (2024) - slurping files with raku slurp, replies mention Perl 5 File::Slurper and File::Slurp	[reply] [d/l] [select]
Re^4: Extracting selected fields form file record by haukex (Archbishop) on Feb 08, 2022 at 12:25 UTC
If you must use a module for this, may I suggest Path::Tiny or File::Slurper? While those modules are nice, I personally find it a bit difficult to keep track of all of the different modules' opinions on how to best slurp files. And considering that slurping a file takes at most two lines of pure Perl code and I remain in full control over layers etc., I no longer see the need to load a module just for that. The following only requires knowing some of the details of layers, such as knowing the effect of `${^OPEN}`, using `:encoding(UTF-8)` instead of `:utf8`, and that UTF-16 files on Windows require the layers `:raw:encoding(UTF-16):crlf` (the latter two being documented in PerlIO and "open" Best Practices). `my $all = do { open my $fh, '<', $filename or die "$filename: $!"; local $/; <$fh> }; my @lines = do { open my $fh, '<', $filename or die "$filename: $!"; <$fh> }; chomp @lines;` [download]	[reply] [d/l] [select]
Re^5: Extracting selected fields form file record by choroba (Cardinal) on Feb 08, 2022 at 13:07 UTC
Related prior discussion: Any downsides to this slurp idiom? `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]