rio: is_file_text – R documentation

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rio

is_file_text

Determine whether a file is “plain-text” or some sort of binary format

Description

Determine whether a file is “plain-text” or some sort of binary format

Usage

is_file_text(file, maxsize = Inf, text_bytes = as.raw(c(7:16, 18, 19, 32:255)))

Arguments

`file`	Path to the file
`maxsize`	Maximum number of bytes to read
`text_bytes`	Which characters are used by normal text (though not necessarily just ASCII). To detect just ASCII, the following value can be used: `as.raw(c(7:16, 18, 19, 32:127))`

Value

A logical

Examples

library(datasets)
export(iris, "iris.yml")
is_file_text("iris.yml") # TRUE

export(iris, "iris.sav")
is_file_text("iris.sav") # FALSE

# cleanup
unlink("iris.yml")
unlink("iris.sav")

rio

A Swiss-Army Knife for Data I/O

v0.5.26

GPL-2

Authors

Jason Becker [ctb], Chung-hong Chan [aut], Geoffrey CH Chan [ctb], Thomas J. Leeper [aut, cre] (<https://orcid.org/0000-0003-4097-6326>), Christopher Gandrud [ctb], Andrew MacDonald [ctb], Ista Zahn [ctb], Stanislaus Stadlmann [ctb], Ruaridh Williamson [ctb], Patrick Kennedy [ctb], Ryan Price [ctb], Trevor L Davis [ctb], Nathan Day [ctb], Bill Denney [ctb] (<https://orcid.org/0000-0002-5759-428X>), Alex Bokov [ctb] (<https://orcid.org/0000-0002-0511-9815>)

Initial release

2021-02-22