Guess the format of references/citations from a file

guess_ref() try to guess the format of references/citations from a file (e.g., PubMed, RIS).

At the moment, guess_ref() works only with PubMed and RIS (Research Information Systems) formats.

guess_ref(file = file.choose(), return_data = FALSE)

Arguments

file: (optional) a string indicating a reference/citation file. If not assigned, a dialog window will be open enabling the user to search and select a file (only for interactive sessions).
return_data: (optional) a logical value indicating if the function must return a list object with the data and metadata from file. See the Details section to learn more (default: FALSE).

If return_data = FALSE, a string with the name of the reference/citation format found in the file argument.
If return_data = TRUE, a list object with the data and metadata from the file argument. See the Details section to learn more.
The function will return an invisible NULL if it fails to found a format.

When return_data = TRUE, guess_ref() will return a list object with the following elements:

format: a string with the name of the reference/citation format found in the file argument.
data: a character object representing all the lines found in the file argument.
count: A numeric value with the count of the references/citations found in the file argument. If you're only interest in this data, use the count_ref() function.
index: an integer object with values indicating the cut points of the references/citations. If the cut point is located at the end of the references/citations, the between value (see below) will be set to "right", else, it will be set to "left.
between: a "left" or "right" value that can be used with the cutter() function. See the documentation for the mentioned function to learn more.

if (FALSE) {
file <- raw_data()[grep("_pubmed_", raw_data())]
file <- raw_data(file)

guess_ref(file)}