websql-autocomplete-2 v1.0.5

WebSQL autocomplete 2

A tool that provides autocompletion for various sql dialects.

Autocomplete theory

In order to parse any language, you need a lexer (tokenizer) and a parser (ast builder)

Resources to research:

• The ANTLR Mega Tutorial: https://tomassetti.me/antlr-mega-tutorial/
• Code Completion with ANTLR4-c3: https://tomassetti.me/code-completion-with-antlr4-c3/

How everything works

1. ANTLR4 grammar and lexer for different {dialect} are defined in src/autocomplete/{dialect}/grammar directories.
2. Actual parsers and lexers for different {dialect} are generated into src/autocomplete/{dialect}/generated directories.
3. Dialect specific code, which is required for the core logic to work, is put in src/autocomplete/{dialect}/{dialect}Autocomplete.ts files.
4. The core logic is inside src/index.ts file. It uses dialect specific helpers to generate autocomplete suggestions based on current cursor position.

Main scripts

• npm run generate - Generate parsers and lexers
• npm run test - Run tests