tree-sitter/examples/grammars/json.cc
2014-04-24 13:21:46 -07:00

40 lines
1.1 KiB
C++

#include "tree_sitter/compiler.h"
namespace tree_sitter_examples {
using tree_sitter::Grammar;
using namespace tree_sitter::rules;
static rule_ptr comma_sep(rule_ptr rule) {
return choice({
seq({ rule, repeat(seq({ str(","), rule })) }),
blank(),
});
}
extern const Grammar json({
{ "value", choice({
sym("object"),
sym("array"),
sym("string"),
sym("number"),
sym("true"),
sym("false"),
sym("null"), }) },
{ "object", seq({
str("{"),
comma_sep(err(seq({
sym("string"),
str(":"),
sym("value") }))),
str("}"), }) },
{ "array", seq({
str("["),
comma_sep(err(sym("value"))),
str("]"), }) },
{ "string", pattern("\"([^\"]|\\\\\")+\"") },
{ "number", pattern("\\d+(\\.\\d+)?") },
{ "null", str("null") },
{ "true", str("true") },
{ "false", str("false") },
});
}