string-complex-js

String package for Fōrmulæ — the visual environment for computing, composing, and conversing with tree-structured expressions.

This repository contains the source code for the string package. It contains functionallity to manage strings, text and regular expressions.

Part of the formulae-org organization: the web application plus one repository per package.

▶ Showcase — worked examples of this package.

Capabilities

• Visualizations
  • Strings
  • Text
  • Regular expressions
• Reduction
  • Concatenation of strings
  • Length of a string
  • Substring from position to position
  • Substring from position, a number of characters
  • Substring from position to end
  • Index of first occurence of a substring
  • Indexes of all occurences of a substring
  • Testing whether a string contains a substring or regular expression
  • Testing whether a string starts with a substring
  • Testing whether a string ends with a substring
  • Conversion to uppercase
  • Conversion to lowercase
  • Replacing the first ocurrence of substring or regular expression
  • Replacing all the ocurrences of substring or regular expression
  • Trim a string
  • Test if a string matches a regular expression
  • Split a substring in positions or a delimiter provided as a regular expression
  • Reverse of a string
  • Encoding a string to a list of unicode points
  • Decoding a list of Unicode points to string
  • Conversion between strings, text and regular expressions