chk_file: Check File Exists

In chk: Check User-Supplied Function Arguments

Check File Exists

Description

Checks if file exists using

vld_string(x) && file.exists(x) && !dir.exists(x)

Usage

chk_file(x, x_name = NULL)

vld_file(x)

Arguments

x	The object to check.
x_name	A string of the name of object x or NULL.

Value

The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.

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

Functions

• vld_file(): Validate File Exists

See Also

Other chk_files: chk_dir(), chk_ext()

Examples

# chk_file
try(chk_file(tempfile()))
# vld_file
vld_file(tempfile())

chk documentation built on Oct. 6, 2023, 9:06 a.m.