Libraries tagged by cross-reference

Pure-PHP PDF decompressor: converts PDF 1.5+ cross-reference streams and object streams (ObjStm) into a classic PDF 1.4 structure, so parsers that only understand the traditional xref table (such as FPDI's free parser) can read them. A qpdf-free alternative — no external binaries.

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Add cross reference links when a discussion is mentioned from another one.

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GitHub-style cross-references between discussions and posts on Flarum 2: #123 inline references, pasted-URL detection, bidirectional backlinks, optional notifications, search filter, and a sidebar widget of inbound references.

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Helper package to manage Node cross references (bidirectional references) in your Neos CMS project

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Track links between discussions and show where each discussion is referenced.

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A PHP documentation generator that analyzes namespaces using reflection and generates comprehensive Markdown documentation with cross-references

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Omnilab Wikidata: an item by Q-number, by the identifier of a science base its statements carry (PubChem CID, ChEBI, CAS, InChIKey, ChEMBL, UniProt, NCBI Gene and Taxonomy, Ensembl, GBIF, iNaturalist, SIMBAD, JPL SBDB, USGS earthquake, UNII, DSSTox, KEGG) or by label - its label, description and aliases in the language asked, those identifiers as cross-references, a few properties with units (mass, melting and boiling points, density...) - and a search by label, narrowed to a domain, through the Wikidata Action API, no key needed, within Wikimedia's usage policy.

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Helper package to manage Node cross references (bidirectional references) in your Neos CMS project

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Omnilab: one contract for the public science-data APIs - entities (a compound, a gene, a protein, a species, a star, an earthquake) with their properties, units and cross-references, series (a variable measured at a place over time: weather, climate, air) and catalogued products (a satellite scene, a dataset, STAC-like) - whatever the domain; a Collector that follows cross-references from one base to the next, and a Symfony bundle.

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Omnilab WoRMS: a taxon of the World Register of Marine Species by its AphiaID, its name, or the ITIS TSN, NCBI taxon or IUCN id WoRMS knows it by - accepted name and status, classification, synonyms, vernacular names, habitat flags, the citation WoRMS asks for, its ITIS, NCBI and IUCN ids as cross-references - and a search of names, through the WoRMS REST service, no key needed.

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Omnilab UniProt: a protein of UniProtKB by accession or entry name - its names, gene, organism, function, length, mass and sequence, cofactors, ligands, location and keywords, its NCBI Gene and Ensembl genes as cross-references, its organism, PDB structures and ligands as related things - and UniProt's search, through the UniProt REST API, no key needed.

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Omnilab HGNC: a human gene by its HGNC id (HGNC:4827), approved, previous or alias symbol, or an id HGNC records (NCBI Gene, Ensembl, UniProt, OMIM) - its approved name, locus group and type, location, previous symbols and names, aliases, gene groups, status, dates, MANE Select, RefSeq and CCDS ids - its NCBI Gene, Ensembl, UniProt and OMIM ids as cross-references, and a search, through HGNC's REST service, no key needed.

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Omnilab GBIF: a taxon of GBIF's taxonomy (the Catalogue of Life eXtended Release since June 2026) by its key, its legacy GBIF Backbone number, its NCBI Taxonomy id or a scientific name GBIF matches - its name, authority, rank, status, IUCN Red List category, common name, publication and classification, its legacy number and NCBI id as cross-references, its parent as a related thing - a search, and the occurrences of a place and a period (by taxon, country, basis of record), each with its time and place and its taxon related, through the GBIF API, no key needed.

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Omnilab Ensembl: a gene, transcript, protein or exon of Ensembl by its id, or a gene by its symbol in a species - its symbol, name, biotype, species, assembly and place on the genome, a gene's NCBI Gene record and Swiss-Prot proteins and a protein's UniProt entries as cross-references, its species, gene, transcripts and protein as related things - and the genes a symbol names, through the Ensembl REST API, no key needed.

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Omnilab Catalogue of Life: a taxon or synonym of the Catalogue of Life by its COL id, by the GBIF key that names it (GBIF's taxonomy is the COL eXtended Release) or by its name - authority, rank, status, classification, vernacular names, distribution, scrutinizer, source record; its GBIF key and the iNaturalist, WoRMS or ITIS records COL names as cross-references; parent, accepted name and synonyms related - and a search of names, through ChecklistBank's API, no key needed.

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