char_utils library
This library is part of the Textify package. Provides shared character classification utilities used across the project.
Functions
-
isDigit(
String char) → bool - Checks whether the given string is a single digit from 0 to 9.
-
isLetter(
String character) → bool - Checks whether the given character is a letter.
-
isLowercaseLetter(
String character) → bool -
True when
characteris a single ASCII lowercase letter. -
isUpperCase(
String str) → bool - Checks whether the given string is all uppercase.
-
isUppercaseLetter(
String character) → bool -
True when
characteris a single ASCII uppercase letter.