## Introduction: 1. introduction to ast-grep 2. Why you need structural search 3. what is ast? what is parser? how computer parse your code text 4. introduction to tree-sitter ## Basic: 1. simple pattern 2. simple kind 3. simple regex 4. multi-nodes match `$$$` 5. use fix ## Intermediate: 1. Refine your pattern: pattern with context 2. Use sgconfig to setup project 3. use sg test to test your rules 4. regex in pattern 5. use `and` / `any` / `not` 6. use relational rule 6. refine relational rule I: field7. refine relational rule II: stopBy 8. Example: extract child field using metavar & `has` ## Advanced: 1. Refine your pattern II: understand how ast-grep matches 2. utility rule 3. utility rule II: recursion (use recursion to munch nodes) 5. manipulate metavar using transform 6. DasSurma trick to handle commas
