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146 lines
3.5 KiB
C++
146 lines
3.5 KiB
C++
// This file is a part of toml++ and is subject to the the terms of the MIT license.
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// Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
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// See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
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// SPDX-License-Identifier: MIT
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// This example shows the error messages the library produces by forcing a set of specific parsing
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// failures and printing their results.
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#include "examples.h"
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#define TOML_EXCEPTIONS 0
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#define TOML_ENABLE_UNRELEASED_FEATURES 0
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#include <toml++/toml.h>
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using namespace std::string_view_literals;
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namespace
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{
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inline constexpr auto invalid_parses = std::array{
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"########## comments and whitespace"sv,
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"# bar\rkek"sv,
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"# bar\bkek"sv,
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"# \xf1\x63"sv,
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"# val1 = 1\fval2 = 2"sv,
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"########## inline tables"sv,
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"val = {,}"sv,
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"val = {a='b',}"sv, // allowed when TOML_ENABLE_UNRELEASED_FEATURES == 1
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"val = {a='b',,}"sv,
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"val = {a='b',"sv,
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"val = {a='b',\n c='d'}"sv, // allowed when TOML_ENABLE_UNRELEASED_FEATURES == 1
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"val = {?='b'}"sv,
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"foo = {} \n [foo.bar]"sv,
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"########## tables"sv,
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"[]"sv,
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"[foo"sv,
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"[foo] ?"sv,
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"[foo] [bar]"sv,
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"[foo]\n[foo]"sv,
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"? = 'foo' ?"sv,
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"[ [foo] ]"sv,
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"########## arrays"sv,
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"val = [,]"sv,
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"val = ['a',,]"sv,
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"val = ['a',"sv,
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"########## key-value pairs"sv,
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"val = 'foo' ?"sv,
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"val = "sv,
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"val "sv,
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"val ?"sv,
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"val = ]"sv,
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"[foo]\nbar = 'kek'\nbar = 'kek2'"sv,
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"[foo]\nbar = 'kek'\nbar = 7"sv,
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"[foo.bar]\n[foo]\nbar = 'kek'"sv,
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"[foo]\nbar = 'kek'\nbar.kek = 7"sv,
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"[foo]\nbar.? = 'kek'"sv,
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R"('''val''' = 1)"sv,
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R"(a."""val""" = 1)"sv,
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"1= 0x6cA#+\xf1"sv,
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"########## values"sv,
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"val = _"sv,
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"val = G"sv,
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"PATHOLOGICALLY_NESTED"sv, // generated inline
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"########## strings"sv,
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"val = \" \r \""sv,
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R"(val = ")"sv,
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R"(val = "\g")"sv,
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R"(val = "\x20")"sv, // allowed when TOML_ENABLE_UNRELEASED_FEATURES == 1
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R"(val = "\uFFF")"sv,
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R"(val = "\uFFFG")"sv,
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R"(val = "\UFFFFFFF")"sv,
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R"(val = "\UFFFFFGF")"sv,
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R"(val = "\uD801")"sv,
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R"(val = "\U00110000")"sv,
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R"(val = """ """""")"sv,
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R"(val = ''' '''''')"sv,
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"val = '\n'"sv,
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"########## integers"sv,
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R"(val = -0b0)"sv,
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R"(val = -0o0)"sv,
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R"(val = -0x0)"sv,
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R"(val = +0b0)"sv,
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R"(val = +0o0)"sv,
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R"(val = +0x0)"sv,
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R"(val = 1-)"sv,
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R"(val = -1+)"sv,
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R"(val = -+1)"sv,
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R"(val = 1_0_)"sv,
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R"(val = 1_0_ )"sv,
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R"(val = 01 )"sv,
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R"(val = 0b10000000_00000000_00000000_00000000_00000000_00000000_00000000_00000000 )"sv,
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R"(val = 0o1000000000000000000000 )"sv,
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R"(val = 9223372036854775808 )"sv,
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R"(val = 0x8000000000000000 )"sv,
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"########## floats"sv,
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R"(val = 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)"sv,
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};
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inline constexpr auto divider =
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"################################################################################"sv;
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}
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int main()
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{
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for (auto str : invalid_parses)
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{
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if (str.empty())
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continue;
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// section headings
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if (str.substr(0, 10) == "##########"sv)
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{
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std::cout << divider << '\n';
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std::cout << "# "sv << str.substr(11) << '\n';
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std::cout << divider << "\n\n"sv;
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}
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// error messages
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else
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{
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toml::parse_result result;
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if (str == "PATHOLOGICALLY_NESTED"sv)
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{
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std::string s(1000u, '[');
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constexpr auto start = "array = "sv;
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memcpy(s.data(), start.data(), start.length());
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result = toml::parse(s);
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}
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else
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result = toml::parse(str);
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if (!result)
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std::cout << result.error() << "\n\n"sv;
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}
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}
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return 0;
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}
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