33 lines
906 B
C++
33 lines
906 B
C++
#include "arithmetic.h"
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#include "rules.h"
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using namespace tree_sitter;
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using namespace tree_sitter::rules;
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namespace test_grammars {
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Grammar arithmetic() {
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return Grammar({
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{ "expression", choice({
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seq({
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sym("term"),
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str("+"),
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sym("term") }),
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sym("term") }) },
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{ "term", choice({
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seq({
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sym("factor"),
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str("*"),
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sym("factor") }),
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sym("factor") }) },
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{ "factor", choice({
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sym("variable"),
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sym("number"),
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seq({
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str("("),
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sym("expression"),
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str(")") }) }) },
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{ "number", pattern("\\d+") },
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{ "variable", pattern("\\w+") },
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});
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}
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}
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