Catman..._match(3pm)

💅 Catman..._match(3pm) — no wait, bestie, this page is Catmandu::Fix::Condition::marc_any_match 🎀

okay so this is a Perl manual page from the User Contributed Perl Documentation, filed under Catman..._match(3pm) (yes the name is doing its own thing, we don't question the filing system 💀). It's a Catmandu Fix condition, and it is so useful, like genuinely.

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✨ NAME ✨

Catmandu::Fix::Condition::marc_any_match — test if a MARC (sub)field matches a value. that's it, that's the job, and it does it flawlessly 🫶

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🌸 SYNOPSIS 🌸

the whole vibe, verbatim:

# marc_any_match(MARC_PATH,REGEX)

# Match when 245 contains the value "My funny title"
if marc_any_match('245','My funny title')
     add_field('my.funny.title','true')
end

# Match when 245a contains the value "My funny title"
if marc_any_match('245a','My funny title')
     add_field('my.funny.title','true')
end

# Match when at least one 650 field contains digits
if marc_any_match('650','[0-9]')
  add_field('has_digits','true')
end

see how it's just if + the condition + the fixes you want + end? iconic structure, no notes 💖

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🦋 DESCRIPTION 🦋

so basically: the enclosing fixes only get evaluated if the MARC (sub)field matches a regular expression. no match, no fixes, the block just sits there respectfully 🙈

and here's the part that matters — when the MARC field is a repeated field, then at least one of those MARC fields should match the regular expression. one little match is enough to let the whole thing through. slay ⭐

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👑 METHODS 👑

marc_any_match(MARC_PATH, REGEX)

evaluates to true when at least one MARC_PATH value matches the REGEX, and false otherwise. that's the whole personality, and honestly? it's enough 💅

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🌈 SEE ALSO 🌈

• Catmandu::Fix::Condition::marc_all_match — the sibling, the counterpart, the "all of them have to match" one. go say hi 👋

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lowkey a tiny condition with main character energy. use it whenever you need "any of these MARC things match this pattern" and you'll never look back. periodt 💜

perl v5.38.2 🌸 2024-08-03 🎀 Catman..._match(3pm) — that's the version, the date, and the name it's filed under, and that's a wrap bestie, go write some fire fixes 💖✨🦋