traxys/tree-sitter
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Update the readme to reflect the new API

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This commit is contained in:
Max Brunsfeld 2018-05-11 12:43:16 -07:00
parent 199a94cc26
commit cd55d5275d
1 changed files with 13 additions and 10 deletions
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23
README.md
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@ -179,25 +179,28 @@ tokens, like `(` and `+`. This is useful when analyzing the meaning of a documen
TSLanguage *tree_sitter_arithmetic();
int main() {
TSDocument *document = ts_document_new();
ts_document_set_language(document, tree_sitter_arithmetic());
ts_document_set_input_string(document, "a + b * 5");
ts_document_parse(document);
TSParser *parser = ts_parser_new();
ts_parser_set_language(parser, tree_sitter_arithmetic());
TSNode root_node = ts_document_root_node(document);
assert(!strcmp(ts_node_type(root_node, document), "expression"));
const char *source_code = "a + b * 5";
TSTree *tree = ts_parser_parse(parser, NULL, source_code, strlen(source_code));
TSNode root_node = ts_tree_root_node(tree);
assert(!strcmp(ts_node_type(root_node), "expression"));
assert(ts_node_named_child_count(root_node) == 1);
TSNode sum_node = ts_node_named_child(root_node, 0);
assert(!strcmp(ts_node_type(sum_node, document), "sum"));
assert(!strcmp(ts_node_type(sum_node), "sum"));
assert(ts_node_named_child_count(sum_node) == 2);
TSNode product_node = ts_node_child(ts_node_named_child(sum_node, 1), 0);
assert(!strcmp(ts_node_type(product_node, document), "product"));
assert(!strcmp(ts_node_type(product_node), "product"));
assert(ts_node_named_child_count(product_node) == 2);
printf("Syntax tree: %s\n", ts_node_string(root_node, document));
ts_document_free(document);
printf("Syntax tree: %s\n", ts_node_string(root_node));
ts_tree_delete(tree);
ts_parser_delete(parser);
return 0;
}
```