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Convert metadata to a tibble

Source: R/as_eml_tibble.R
as_eml_tibble.Rd

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)
#> # A tibble: 63 × 4
#>    level label               text      attributes      
#>    <dbl> <chr>               <list>    <list>          
#>  1     1 eml                 <chr [1]> <named list [8]>
#>  2     2 dataset             <chr [1]> <lgl [1]>       
#>  3     3 alternateIdentifier <chr [1]> <lgl [1]>       
#>  4     3 alternateIdentifier <chr [1]> <lgl [1]>       
#>  5     3 alternateIdentifier <chr [1]> <lgl [1]>       
#>  6     3 alternateIdentifier <chr [1]> <lgl [1]>       
#>  7     3 title               <chr [1]> <named list [1]>
#>  8     3 creator             <chr [1]> <lgl [1]>       
#>  9     4 organizationName    <chr [1]> <lgl [1]>       
#> 10     4 address             <chr [1]> <lgl [1]>       
#> # ℹ 53 more rows