48baf056b4
This way, we can keep of the order in which the rules were given, for resolving reduce/reduce conflicts.
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
#include "tree_sitter/compiler.h"
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namespace tree_sitter {
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namespace examples {
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using namespace tree_sitter::rules;
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static rule_ptr comma_sep(const rule_ptr &rule) {
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return choice({
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seq({
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rule,
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repeat(seq({ _sym("comma"), rule })),
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}),
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blank(),
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});
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}
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Grammar json() {
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return Grammar({
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{ "value", choice({
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sym("object"),
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sym("array"),
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sym("string"),
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sym("number"),
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sym("true"),
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sym("false"),
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sym("null"), }) },
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{ "object", seq({
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_sym("left_brace"),
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comma_sep(err(seq({
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sym("string"),
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_sym("colon"),
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sym("value") }))),
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_sym("right_brace"), }) },
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{ "array", seq({
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_sym("left_bracket"),
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comma_sep(err(sym("value"))),
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_sym("right_bracket"), }) },
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{ "string", pattern("\"([^\"]|\\\\\")+\"") },
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{ "number", pattern("\\d+(.\\d+)?") },
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{ "comma", str(",") },
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{ "colon", str(":") },
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{ "left_bracket", str("[") },
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{ "right_bracket", str("]") },
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{ "left_brace", str("{") },
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{ "right_brace", str("}") },
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{ "null", str("null") },
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{ "true", str("true") },
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{ "false", str("false") },
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});
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}
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}
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}
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