init

Author: shiqimei

.gitignore

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+node_modules

README.md

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+# Tree-Sitter Query Examples
+
+```scheme
+(program
+ (import_statement) @import
+) @program
+```
+
+```scheme
+(switch_case
+ (string
+     ((string_fragment) @case_name)
+    )
+    (#eq? @case_name "executeEditorAction")
+) @select
+```

index.js

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+const Parser = require('tree-sitter');
+const { typescript: TypeScript } = require('tree-sitter-typescript');
+const fs = require('fs')
+
+function formatCaptures(tree, captures) {
+    return captures.map((c) => {
+        const node = c.node;
+        // delete c.node;
+        c.text = tree.getText(node);
+        return c;
+    });
+}
+
+function formatMatches(tree, matches) {
+    return matches.map(({ pattern, captures }) => ({
+        pattern,
+        captures: formatCaptures(tree, captures),
+    }));
+}
+
+const source = fs.readFileSync('./test.ts').toString()
+const parser = new Parser();
+parser.setLanguage(TypeScript);
+const tree = parser.parse(source)
+const query = new Parser.Query(TypeScript, `
+(switch_case
+	(string
+    	((string_fragment) @case_name)
+    )
+    (#eq? @case_name "executeEditorAction")
+) @select
+`);
+
+const matches = query.matches(tree.rootNode)
+const formattedMatches = formatMatches(tree, matches)
+    .map(match => match.captures)
+
+console.log(matches, formattedMatches);