prolog-strings

What problem does it solve?

Prolog developers often struggle with understanding and converting between the multiple text representations in Prolog (atoms, strings, character lists, and code lists), which can lead to bugs and confusion in text processing tasks.

Core Features & Use Cases

• Clear explanation of four text representations (atoms, strings, char lists, code lists) and how the global double_quotes flag changes their meaning.
• Guidance on common predicates and patterns for conversion, testing, and reversible operations (atom_string, string_to_atom, atom_chars, string_length, sub_atom, format) and practical scenarios like parsing and formatting.
• Use cases include DCG parsing, text processing, and format/2 style output for SWI-Prolog programs.

Quick Start

Explain how to convert between atoms, strings, and code lists in SWI-Prolog and demonstrate atom_string/2 and string_to_atom/2.