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cpp-peglib/test/test.cc
yhirose 1ad9e73d67 Uploaded files.
2015-02-07 20:52:26 -05:00

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#define CATCH_CONFIG_MAIN
#include "catch.hpp"
#include <peglib.h>
#include <iostream>
TEST_CASE("String capture test", "[general]")
{
{
#if defined(_MSC_VER) && _MSC_VER < 1900 // Less than Visual Studio 2015
auto parser = peglib::make_parser(
" ROOT <- _ ('[' TAG_NAME ']' _)* "
" TAG_NAME <- (!']' .)+ "
" _ <- [ \t]* "
);
#else
auto parser = peglib::make_parser(R"(
ROOT <- _ ('[' TAG_NAME ']' _)*
TAG_NAME <- (!']' .)+
_ <- [ \t]*
)");
#endif
std::vector<std::string> tags;
parser["TAG_NAME"] = [&](const char* s, size_t l) {
tags.push_back(std::string(s, l));
};
auto ret = parser.parse(" [tag1] [tag:2] [tag-3] ");
REQUIRE(ret == true);
REQUIRE(tags.size() == 3);
REQUIRE(tags[0] == "tag1");
REQUIRE(tags[1] == "tag:2");
REQUIRE(tags[2] == "tag-3");
}
REQUIRE(peglib::VARINT_COUNT == 0);
}
using namespace peglib;
using namespace std;
TEST_CASE("String capture test with match", "[general]")
{
{
Definition ROOT, TAG, TAG_NAME, WS;
ROOT = seq(WS, zom(TAG));
TAG = seq(chr('['), TAG_NAME, chr(']'), WS);
TAG_NAME = oom(seq(npd(chr(']')), any()));
WS = zom(cls(" \t"));
vector<string> tags;
TAG_NAME.match = [&](const char* s, size_t l) {
tags.push_back(string(s, l));
};
auto ret = ROOT.parse(" [tag1] [tag:2] [tag-3] ");
REQUIRE(ret == true);
REQUIRE(tags.size() == 3);
REQUIRE(tags[0] == "tag1");
REQUIRE(tags[1] == "tag:2");
REQUIRE(tags[2] == "tag-3");
}
REQUIRE(VARINT_COUNT == 0);
}
TEST_CASE("Cyclic grammer test", "[general]")
{
{
Definition PARENT;
Definition CHILD;
PARENT = seq(CHILD);
CHILD = seq(PARENT);
}
REQUIRE(VARINT_COUNT == 0);
}
TEST_CASE("Lambda action test", "[general]")
{
auto parser = make_parser(
" START <- (CHAR)* "
" CHAR <- . ");
string ss;
parser["CHAR"] = [&](const char* s, size_t l) {
ss += *s;
};
bool ret = parser.parse("hello");
REQUIRE(ret == true);
REQUIRE(ss == "hello");
}
TEST_CASE("Calculator test", "[general]")
{
{
// Construct grammer
Definition EXPRESSION, TERM, FACTOR, TERM_OPERATOR, FACTOR_OPERATOR, NUMBER;
EXPRESSION = seq(TERM, zom(seq(TERM_OPERATOR, TERM)));
TERM = seq(FACTOR, zom(seq(FACTOR_OPERATOR, FACTOR)));
FACTOR = cho(NUMBER, seq(chr('('), EXPRESSION, chr(')')));
TERM_OPERATOR = cls("+-");
FACTOR_OPERATOR = cls("*/");
NUMBER = oom(cls("0-9"));
// Setup actions
SemanticActions<Any> actions;
auto reduce = [](const vector<Any>& v) -> long {
long ret = v[0].get<long>();
for (auto i = 1u; i < v.size(); i += 2) {
auto num = v[i + 1].get<long>();
switch (v[i].get<char>()) {
case '+': ret += num; break;
case '-': ret -= num; break;
case '*': ret *= num; break;
case '/': ret /= num; break;
}
}
return ret;
};
actions[EXPRESSION] = reduce;
actions[TERM] = reduce;
actions[TERM_OPERATOR] = [](const char* s, size_t l) { return *s; };
actions[FACTOR_OPERATOR] = [](const char* s, size_t l) { return *s; };
actions[NUMBER] = [&](const char* s, size_t l) { return stol(string(s, l), nullptr, 10); };
// Parse
Any val;
auto ret = EXPRESSION.parse("1+2*3*(4-5+6)/7-8", actions, val);
REQUIRE(ret == true);
REQUIRE(val.get<long>() == -3);
}
REQUIRE(VARINT_COUNT == 0);
}
TEST_CASE("Calculator test2", "[general]")
{
{
// Parse syntax
auto syntax =
" # Grammar for Calculator...\n "
" EXPRESSION <- TERM (TERM_OPERATOR TERM)* "
" TERM <- FACTOR (FACTOR_OPERATOR FACTOR)* "
" FACTOR <- NUMBER / '(' EXPRESSION ')' "
" TERM_OPERATOR <- [-+] "
" FACTOR_OPERATOR <- [/*] "
" NUMBER <- [0-9]+ "
;
string start;
auto grammar = make_grammar(syntax, start);
auto& g = *grammar;
// Setup actions
SemanticActions<Any> a;
auto reduce = [](const vector<Any>& v) -> long {
long ret = v[0].get<long>();
for (auto i = 1u; i < v.size(); i += 2) {
auto num = v[i + 1].get<long>();
switch (v[i].get<char>()) {
case '+': ret += num; break;
case '-': ret -= num; break;
case '*': ret *= num; break;
case '/': ret /= num; break;
}
}
return ret;
};
a[g["EXPRESSION"]] = reduce;
a[g["TERM"]] = reduce;
a[g["TERM_OPERATOR"]] = [](const char* s, size_t l) { return *s; };
a[g["FACTOR_OPERATOR"]] = [](const char* s, size_t l) { return *s; };
a[g["NUMBER"]] = [&](const char* s, size_t l) { return stol(string(s, l), nullptr, 10); };
// Parse
Any val;
auto ret = g[start].parse("1+2*3*(4-5+6)/7-8", a, val);
REQUIRE(ret == true);
REQUIRE(val.get<long>() == -3);
}
REQUIRE(VARINT_COUNT == 0);
}
TEST_CASE("Calculator test3", "[general]")
{
{
// Parse syntax
#if defined(_MSC_VER) && _MSC_VER < 1900 // Less than Visual Studio 2015
auto parser = make_parser(
" # Grammar for Calculator...\n "
" EXPRESSION <- TERM (TERM_OPERATOR TERM)* "
" TERM <- FACTOR (FACTOR_OPERATOR FACTOR)* "
" FACTOR <- NUMBER / '(' EXPRESSION ')' "
" TERM_OPERATOR <- [-+] "
" FACTOR_OPERATOR <- [/*] "
" NUMBER <- [0-9]+ "
);
#else
auto parser = make_parser(R"(
# Grammar for Calculator...
EXPRESSION <- TERM (TERM_OPERATOR TERM)*
TERM <- FACTOR (FACTOR_OPERATOR FACTOR)*
FACTOR <- NUMBER / '(' EXPRESSION ')'
TERM_OPERATOR <- [-+]
FACTOR_OPERATOR <- [/*]
NUMBER <- [0-9]+
)");
#endif
auto reduce = [](const vector<Any>& v) -> long {
long ret = v[0].get<long>();
for (auto i = 1u; i < v.size(); i += 2) {
auto num = v[i + 1].get<long>();
switch (v[i].get<char>()) {
case '+': ret += num; break;
case '-': ret -= num; break;
case '*': ret *= num; break;
case '/': ret /= num; break;
}
}
return ret;
};
// Setup actions
parser["EXPRESSION"] = reduce;
parser["TERM"] = reduce;
parser["TERM_OPERATOR"] = [](const char* s, size_t l) { return (char)*s; };
parser["FACTOR_OPERATOR"] = [](const char* s, size_t l) { return (char)*s; };
parser["NUMBER"] = [](const char* s, size_t l) { return stol(string(s, l), nullptr, 10); };
// Parse
long val;
auto ret = parser.parse("1+2*3*(4-5+6)/7-8", val);
REQUIRE(ret == true);
REQUIRE(val == -3);
}
REQUIRE(VARINT_COUNT == 0);
}
TEST_CASE("PEG Grammar", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Grammar"].parse(" Definition <- a / ( b c ) / d \n rule2 <- [a-zA-Z][a-z0-9-]+ ") == true);
}
TEST_CASE("PEG Definition", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Definition"].parse("Definition <- a / (b c) / d ") == true);
REQUIRE(g["Definition"].parse("Definition <- a / b c / d ") == true);
REQUIRE(g["Definition"].parse("Definition ") == false);
REQUIRE(g["Definition"].parse(" ") == false);
REQUIRE(g["Definition"].parse("") == false);
REQUIRE(g["Definition"].parse("Definition = a / (b c) / d ") == false);
}
TEST_CASE("PEG Expression", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Expression"].parse("a / (b c) / d ") == true);
REQUIRE(g["Expression"].parse("a / b c / d ") == true);
REQUIRE(g["Expression"].parse("a b ") == true);
REQUIRE(g["Expression"].parse("") == true);
REQUIRE(g["Expression"].parse(" ") == false);
REQUIRE(g["Expression"].parse(" a b ") == false);
}
TEST_CASE("PEG Sequence", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Sequence"].parse("a b c d ") == true);
REQUIRE(g["Sequence"].parse("") == true);
REQUIRE(g["Sequence"].parse("!") == false);
REQUIRE(g["Sequence"].parse("<-") == false);
REQUIRE(g["Sequence"].parse(" a") == false);
}
TEST_CASE("PEG Prefix", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Prefix"].parse("&[a]") == true);
REQUIRE(g["Prefix"].parse("![']") == true);
REQUIRE(g["Prefix"].parse("-[']") == false);
REQUIRE(g["Prefix"].parse("") == false);
REQUIRE(g["Sequence"].parse(" a") == false);
}
TEST_CASE("PEG Suffix", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Suffix"].parse("aaa ") == true);
REQUIRE(g["Suffix"].parse("aaa? ") == true);
REQUIRE(g["Suffix"].parse("aaa* ") == true);
REQUIRE(g["Suffix"].parse("aaa+ ") == true);
REQUIRE(g["Suffix"].parse(". + ") == true);
REQUIRE(g["Suffix"].parse("?") == false);
REQUIRE(g["Suffix"].parse("") == false);
REQUIRE(g["Sequence"].parse(" a") == false);
}
TEST_CASE("PEG Primary", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Primary"].parse("_Identifier0_ ") == true);
REQUIRE(g["Primary"].parse("_Identifier0_<-") == false);
REQUIRE(g["Primary"].parse("( _Identifier0_ _Identifier1_ )") == true);
REQUIRE(g["Primary"].parse("'Literal String'") == true);
REQUIRE(g["Primary"].parse("\"Literal String\"") == true);
REQUIRE(g["Primary"].parse("[a-zA-Z]") == true);
REQUIRE(g["Primary"].parse(".") == true);
REQUIRE(g["Primary"].parse("") == false);
REQUIRE(g["Primary"].parse(" ") == false);
REQUIRE(g["Primary"].parse(" a") == false);
REQUIRE(g["Primary"].parse("") == false);
}
TEST_CASE("PEG Identifier", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Identifier"].parse("_Identifier0_ ") == true);
REQUIRE(g["Identifier"].parse("0Identifier_ ") == false);
REQUIRE(g["Identifier"].parse("Iden|t ") == false);
REQUIRE(g["Identifier"].parse(" ") == false);
REQUIRE(g["Identifier"].parse(" a") == false);
REQUIRE(g["Identifier"].parse("") == false);
}
TEST_CASE("PEG IdentStart", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["IdentStart"].parse("_") == true);
REQUIRE(g["IdentStart"].parse("a") == true);
REQUIRE(g["IdentStart"].parse("Z") == true);
REQUIRE(g["IdentStart"].parse("") == false);
REQUIRE(g["IdentStart"].parse(" ") == false);
REQUIRE(g["IdentStart"].parse("0") == false);
}
TEST_CASE("PEG IdentCont", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["IdentCont"].parse("_") == true);
REQUIRE(g["IdentCont"].parse("a") == true);
REQUIRE(g["IdentCont"].parse("Z") == true);
REQUIRE(g["IdentCont"].parse("") == false);
REQUIRE(g["IdentCont"].parse(" ") == false);
REQUIRE(g["IdentCont"].parse("0") == true);
}
TEST_CASE("PEG Literal", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Literal"].parse("'abc' ") == true);
REQUIRE(g["Literal"].parse("'a\\nb\\tc' ") == true);
REQUIRE(g["Literal"].parse("'a\\277\tc' ") == true);
REQUIRE(g["Literal"].parse("'a\\77\tc' ") == true);
REQUIRE(g["Literal"].parse("'a\\80\tc' ") == false);
REQUIRE(g["Literal"].parse("'\n' ") == true);
REQUIRE(g["Literal"].parse("'a\\'b' ") == true);
REQUIRE(g["Literal"].parse("'a'b' ") == false);
REQUIRE(g["Literal"].parse("'a\"'b' ") == false);
REQUIRE(g["Literal"].parse("\"'\\\"abc\\\"'\" ") == true);
REQUIRE(g["Literal"].parse("\"'\"abc\"'\" ") == false);
REQUIRE(g["Literal"].parse("abc") == false);
REQUIRE(g["Literal"].parse("") == false);
REQUIRE(g["Literal"].parse("日本語") == false);
}
TEST_CASE("PEG Class", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Class"].parse("[]") == true);
REQUIRE(g["Class"].parse("[a]") == true);
REQUIRE(g["Class"].parse("[a-z]") == true);
REQUIRE(g["Class"].parse("[az]") == true);
REQUIRE(g["Class"].parse("[a-zA-Z-]") == true);
REQUIRE(g["Class"].parse("[a-zA-Z-0-9]") == true);
REQUIRE(g["Class"].parse("[a-]") == false);
REQUIRE(g["Class"].parse("[-a]") == true);
REQUIRE(g["Class"].parse("[") == false);
REQUIRE(g["Class"].parse("[a") == false);
REQUIRE(g["Class"].parse("]") == false);
REQUIRE(g["Class"].parse("a]") == false);
REQUIRE(g["Class"].parse("あ-ん") == false);
REQUIRE(g["Class"].parse("[-+]") == true);
REQUIRE(g["Class"].parse("[+-]") == false);
}
TEST_CASE("PEG Range", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Range"].parse("a") == true);
REQUIRE(g["Range"].parse("a-z") == true);
REQUIRE(g["Range"].parse("az") == false);
REQUIRE(g["Range"].parse("") == false);
REQUIRE(g["Range"].parse("a-") == false);
REQUIRE(g["Range"].parse("-a") == false);
}
TEST_CASE("PEG Char", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Char"].parse("\\n") == true);
REQUIRE(g["Char"].parse("\\r") == true);
REQUIRE(g["Char"].parse("\\t") == true);
REQUIRE(g["Char"].parse("\\'") == true);
REQUIRE(g["Char"].parse("\\\"") == true);
REQUIRE(g["Char"].parse("\\[") == true);
REQUIRE(g["Char"].parse("\\]") == true);
REQUIRE(g["Char"].parse("\\\\") == true);
REQUIRE(g["Char"].parse("\\000") == true);
REQUIRE(g["Char"].parse("\\277") == true);
REQUIRE(g["Char"].parse("\\377") == false);
REQUIRE(g["Char"].parse("\\087") == false);
REQUIRE(g["Char"].parse("\\079") == false);
REQUIRE(g["Char"].parse("\\00") == true);
REQUIRE(g["Char"].parse("\\77") == true);
REQUIRE(g["Char"].parse("\\80") == false);
REQUIRE(g["Char"].parse("\\08") == false);
REQUIRE(g["Char"].parse("\\0") == true);
REQUIRE(g["Char"].parse("\\7") == true);
REQUIRE(g["Char"].parse("\\8") == false);
REQUIRE(g["Char"].parse("a") == true);
REQUIRE(g["Char"].parse(".") == true);
REQUIRE(g["Char"].parse("0") == true);
REQUIRE(g["Char"].parse("\\") == false);
REQUIRE(g["Char"].parse(" ") == true);
REQUIRE(g["Char"].parse(" ") == false);
REQUIRE(g["Char"].parse("") == false);
REQUIRE(g["Char"].parse("あ") == false);
}
TEST_CASE("PEG Operators", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["LEFTARROW"].parse("<-") == true);
REQUIRE(g["SLASH"].parse("/ ") == true);
REQUIRE(g["AND"].parse("& ") == true);
REQUIRE(g["NOT"].parse("! ") == true);
REQUIRE(g["QUESTION"].parse("? ") == true);
REQUIRE(g["STAR"].parse("* ") == true);
REQUIRE(g["PLUS"].parse("+ ") == true);
REQUIRE(g["OPEN"].parse("( ") == true);
REQUIRE(g["CLOSE"].parse(") ") == true);
REQUIRE(g["DOT"].parse(". ") == true);
}
TEST_CASE("PEG Comment", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Comment"].parse("# Comment.\n") == true);
REQUIRE(g["Comment"].parse("# Comment.") == false);
REQUIRE(g["Comment"].parse(" ") == false);
REQUIRE(g["Comment"].parse("a") == false);
}
TEST_CASE("PEG Space", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["Space"].parse(" ") == true);
REQUIRE(g["Space"].parse("\t") == true);
REQUIRE(g["Space"].parse("\n") == true);
REQUIRE(g["Space"].parse("") == false);
REQUIRE(g["Space"].parse("a") == false);
}
TEST_CASE("PEG EndOfLine", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["EndOfLine"].parse("\r\n") == true);
REQUIRE(g["EndOfLine"].parse("\n") == true);
REQUIRE(g["EndOfLine"].parse("\r") == true);
REQUIRE(g["EndOfLine"].parse(" ") == false);
REQUIRE(g["EndOfLine"].parse("") == false);
REQUIRE(g["EndOfLine"].parse("a") == false);
}
TEST_CASE("PEG EndOfFile", "[peg]")
{
Grammar g = make_peg_grammar();
REQUIRE(g["EndOfFile"].parse("") == true);
REQUIRE(g["EndOfFile"].parse(" ") == false);
}
// vim: et ts=4 sw=4 cin cino={1s ff=unix
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