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assertive.strings

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.

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Version

Install

install.packages('assertive.strings')

Monthly Downloads

102

Version

0.0-3

License

GPL (>= 3)

Maintainer

Last Published

May 10th, 2016

Functions in assertive.strings (0.0-3)

recycle

Recycle arguments
assert_all_are_numeric_strings

Does the string contain a number/logical value?
matches_regex

Does the input match the regular expression?
assert_all_are_empty_character

Does the input contain empty or missing strings?
character_to_list_of_integer_vectors

Convert a character vector to a list of integer vectors
assert_all_are_matching_fixed

Does the string match a pattern?
create_regex

Create a regex from components.
assert_all_are_single_characters

Is the input a single character?
strip_invalid_chars

Removes invalid characters from a string.
d

Create regex for repeated digits