as_eml_tibble: Convert metadata to a 'tibble'

In delma: Convert 'R Markdown' and 'Quarto' Documents to Ecological Metadata Language

Convert metadata to a tibble

Description

Takes objects of class list or xml_document and converts them to a tibble with a particular structure, designed for storing nested data. Tibbles are required because attributes are stored as list-columns, which are not supported by class data.frame.

Usage

as_eml_tibble(x, ...)

## S3 method for class 'tbl_df'
as_eml_tibble(x, ...)

## S3 method for class 'tbl_lp'
as_eml_tibble(x, ...)

## S3 method for class 'list'
as_eml_tibble(x, ...)

## S3 method for class 'xml_document'
as_eml_tibble(x, ...)

Arguments

x	Object to be converted
...	Other arguments, currently ignored

Value

An object of class tbl_df, tbl and data.frame, containing the following fields:

• level (int) gives the nestedness level of the node/heading in question

• label (chr) the xml tag

• text (chr) Any text stored within that tag

• attributes (list) Any attributes for that tag

Examples

source_file <- system.file("extdata", 
                           "bionet_metadata.xml",
                           package = "delma")
xml_data <- xml2::read_xml(source_file)
as_eml_tibble(xml_data)

delma documentation built on June 8, 2025, 1:56 p.m.