Assertions to Check Properties of Strings

A set of predicates and assertions for checking the properties of strings. This is mainly for use by other package developers who want to include run-time testing features in their own packages. End-users will usually want to use assertive directly.


Project Status: Active - The project has reached a stable, usable state and is being actively developed. Is the package on CRAN? SemaphoreCI Build Status AppVeyor Build Status

A set of predicates and assertions for checking the properties of strings. Most of the documentation is on the assertive page. End-users will usually want to use assertive directly.

Installation

To install the stable version, type:

install.packages("assertive.strings")

To install the development version, you first need the devtools package.

install.packages("devtools")

Then you can install the assertive.strings package using

library(devtools)
install_bitbucket("richierocks/assertive.strings")

Predicates

is_empty_character, is_non_empty_character, is_missing_or_empty_character, and is_non_missing_nor_empty_character check for empty and missing (or not) character vectors.

is_an_empty_string, is_a_non_empty_string, is_a_missing_or_empty_string, and is_a_non_missing_nor_empty_string do the same, for single strings.

is_numeric_string checks for strings that contain numbers.

is_single_character checks for single characters.

is_matching_fixed, is_matching_regex, is_not_matching_fixed, and is_not_matching_regex all check whether a string matches a pattern or not.

Assertions

Predicates that return a vector have two corresponding assertions. For example, is_numeric_string has assert_all_are_numeric_strings and assert_any_are_numeric_strings.

Predicates returning a single logical value have one corresponding assertion. For example, is_an_empty_string has assert_is_an_empty_string.

Utils

character_to_list_of_integer_vectors converts a character vector of numbers to a list of integer vectors.

News

0.0-3 Added is_matching_* predicates + assertions. (Thanks Aditya!) 0.0-2 Added is_logical_string + assertions. Reexported some deprecated fns for back compatibility. Dropped devtools dependency. 0.0-1 Content extracted from assertive 0.3-0, and tidied.

Reference manual

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install.packages("assertive.strings")

0.0-3 by Richard Cotton, 3 years ago


https://bitbucket.org/richierocks/assertive.strings


Report a bug at https://bitbucket.org/richierocks/assertive.strings/issues


Browse source code at https://github.com/cran/assertive.strings


Authors: Richard Cotton [aut, cre] , Aditya Bhagwat [ctb]


Documentation:   PDF Manual  


GPL (>= 3) license


Imports assertive.base, assertive.types, stringi

Suggests testthat


Imported by assertive, assertive.data, assertive.data.uk, assertive.data.us, flippant, pathological, poio.


See at CRAN