Parsing Library Data

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The legacy data that libraries must deal with is often challenging to parse algorithmically. MARC is just the first layer--once you peel that back, you find that you have an elaborate mish-mash of elements, each of which with its own idiosyncrasies. This page is meant to serve as a place for the Code4lib community to track and share information, problems, methodologies, code, pseudo-code, etc. about nuts-and-bolts parsing of legacy library data.

Identifiers

Library of Congress Control Number

MARC 21 Field(s): 001 003 010


OCLC Control Number

Marc 21 Field(s): 001 003 035


ISBN

MARC 21 Field(s): 020


ISSN

MARC 21 Field(s): 022


Dewey Decimal Call Number

MARC 21 Field(s): 082


Library of Congress Call Number

MARC 21 Field(s): 050


Personal Names

MARC 21 Field(s): (Name Headings) 100 600 700 800; Also X00 - Personal Names-General Information (Uncontrolled Names) 245$c 505$r 511 720


Corporate Names

MARC 21 Field(s): 110 610 710 810; Also X10 - Corporate Names-General Information


Titles

MARC 21 Field(s): (Transcribed Titles) 245 505$t (Alternate Titles) 210 222 242 246 247 (Uniform Titles) 130 240 243 630 730 830; Also X30 - Uniform Titles-General Information


Subject Headings

MARC 21 Field(s): 600 610 611 630 648 650 651 653 654 655 656 657 658 662 690-699