chk: chk_ext – R documentation

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Documentation

chk

chk_ext

Check File Extension

Description

Checks extension using

vld_string(x) && vld_subset(tools::file_ext(x), ext)

The user may want to use toupper() or tolower() to ensure the case matches.

Usage

chk_ext(x, ext, x_name = NULL)

vld_ext(x, ext)

Arguments

`x`	The object to check.
`ext`	A character vector of the permitted file extensions (without the .).
`x_name`	A string of the name of object x or NULL.

Value

The chk_ function throws an informative error if the test fails.

The vld_ function returns a flag indicating whether the test was met.

Functions

vld_ext: Validate File Extension

Examples

# chk_ext
try(chk_ext("file1.pdf", "png"))
# vld_ext
vld_ext("oeu.pdf", "pdf")
vld_ext(toupper("oeu.pdf"), "PDF")

chk

Check User-Supplied Function Arguments

v0.5.1

MIT + file LICENSE

Authors

Joe Thorley [aut, cre] (<https://orcid.org/0000-0002-7683-4592>), Kirill Müller [aut] (<https://orcid.org/0000-0002-1416-3412>), Ayla Pearson [ctb] (<https://orcid.org/0000-0001-7388-1222>), Poisson Consulting [cph, fnd]

Initial release