36 lines
No EOL
926 B
C++
36 lines
No EOL
926 B
C++
#include "spec_helper.h"
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#include "prepare_grammar/expand_repeats.h"
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START_TEST
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using prepare_grammar::expand_repeats;
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using namespace rules;
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describe("expanding repeat rules in a grammar", []() {
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it("replaces repeat rules with pairs of recursive rules", [&]() {
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Grammar result = expand_repeats(Grammar({
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{ "rule1", seq({
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sym("x"),
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repeat(seq({ sym("a"), sym("b") })),
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sym("y")
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}) },
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}));
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AssertThat(result, Equals(Grammar({
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{ "rule1", seq({
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sym("x"),
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sym("repeat_helper1"),
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sym("y")
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}) },
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{ "repeat_helper1", seq({
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seq({ sym("a"), sym("b") }),
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choice({
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sym("repeat_helper1") ,
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blank()
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}),
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}) }
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})));
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});
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});
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END_TEST |