Awesome

UTF8 Validator (C edition)

This is a more basic but much faster version of UTF8 Validator. The C edition, uses the fastvalidate-utf-8 library from Daniel Lemire. The C edition only returns a pass or fail result. It does not provide information about the position at which validation fails or allow to continue validating further after the first error.

A UTF-8 Validation Tool which may be used as a command line tool, if you are looking for a C library to use with your own program see fastvalidate-utf-8.

Released under the Apache 2.0 Licence.

Use from the Command Line

You can build from the source code. You can then run utf8validate (Linux/Mac/Unix).

For example:

$ ./utf8validate

Command Line Exit Codes

• 0 Success
• 1 Invalid Arguments provided to the application
• 2 File was not UTF-8 Valid
• 4 IO Error, e.g. could not read file

Building from Source Code

Prerequisite

• c99 compaitble compiler, e.g. modern GCC or Clang
• Make

Steps

• Git clone the repository from https://github.com/adamretter/utf8-validator-c.git
• Build using Make, by running make in the cloned directory, you will then find a binary of the compiled application named utf8validate.

Reference

• John Keiser, Daniel Lemire, Validating UTF-8 In Less Than One Instruction Per Byte, Software: Practice & Experience (to appear)