Juman::DB_File(3pm)

💖 Juman::DB_File 💖

okay bestie, come closer 🫶 this one is Juman::DB_File(3pm) from the User Contributed Perl Documentation corner of the perl universe, and it is a tiny little wrapper that's doing the most important job in the room. no cap. 💅

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🌸 NAME 🌸

Juman::DB_File — a wrapper class of DB_File. that's the name. that's the whole flex. 👑

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🎀 SYNOPSIS 🎀

use Juman::DB_File;
use encoding "euc-jp";
tie( %hash, 'Juman::DB_File', $dbfile, &O_CREAT ) or die;
$hash{"æ·»å—"} = "値";
while( my( $key, $value ) = each %hash ){
    print "$key:$value\n";
}

walk with me bestie, it's literally five lines of main character energy ✨

• you use Juman::DB_File; — obviously, you have to summon it first.
• you use encoding "euc-jp"; so everybody knows what encoding we're living in.
• you tie( %hash, 'Juman::DB_File', $dbfile, &O_CREAT ) or die; — your plain little %hash gets tied to the class, handed $dbfile and &O_CREAT, and if that fails we die on the spot, because we do not do silent failure in this house 😤.
• you drop a key and a value in there: $hash{"æ·»å—"} = "値";
• then you loop with each %hash, grabbing $key and $value as a pair, and print "$key:$value\n" for every single one. periodt. 🔥

real talk: those two scrambled-looking strings in line 4 are Japanese characters that got mojibake'd by an encoding mixup on the page (the encoding pragma thing has layers, iykyk). I'm reprinting them exactly as they appear so you can match the real page character for character. 🙈

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💜 DESCRIPTION 💜

so here's the lore 🦋 (the source page says all of this in Japanese, so I'm handing it to you in English so your brain doesn't melt):

• Perl-5.8.x uses Unicode as its internal character code.
• because of that, if you're going to reference a database file that was written in Japanese EUC, you have to always explicitly do encode/decode before you write your extra stuff and values in, or read them back out.
• and that is exactly why this "Juman::DB_File" class is here: it handles database files that are stored in one particular character code, and it does the encode/decode transparently for you. so you don't have to. it's giving "I got you, bestie". 🫶

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✨ ENCODING ✨

• when you use this class, you specify the character code used for input/output with the database via the "encoding" pragma. yes, that pragma. that's the one. 🎀
• and if there's no specification from the "encoding" pragma at all? then literally no conversion happens. zero. none. it just raw-dogs the bytes. 💀

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🌈 SEE ALSO 🌈

• DB_File
• perltie

go read those too, they're the supporting cast and they ate. 👑

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👑 AUTHOR 👑

土屋 雅稔 <tsuchiya@pine.kuee.kyoto-u.ac.jp> — absolute icon, wrote the whole thing. 💖

(on the raw page the name shows up as 土屋 雅稔 because the encoding said "not today". you know how it is.)

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💀 POD ERRORS 💀

Hey! The above document had some coding errors, which are explained below:

• Around line 20: Non-ASCII character seen before =encoding in '$hash{"æ·»å—"}'. Assuming CP1252
• Around line 102: =over without closing =back

not the doc catching its own L's while still being iconic 😭 honestly, respect.

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okay that's the whole page, bestie, we're done here 💅 this one comes from perl v5.40.1, dated 2026-02-11, and it's filed as Juman::DB_File(3pm). mwah, now go tie some hashes and stay encoded. 💜🦋✨