mirror of
https://github.com/hyprwm/hyprutils.git
synced 2025-12-20 05:50:11 +01:00
e02d48c05d
Added expressions with var substitution.
Using std::expected to handle errors.
Usage example:
auto val = Hyprutils::Expression::eval("5 + 5 * (2 / w)", {{"w", 10}});
if(val)
doThingWithValue(*val);
if(!val)
std::cout << val.error();
48 lines
2.1 KiB
C++
48 lines
2.1 KiB
C++
#include <hyprutils/string/Expression.hpp>
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#include "shared.hpp"
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using namespace Hyprutils::Expression;
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int main() {
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int ret = 0;
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std::unordered_map<std::string, int> VARS_INT = {{"x", 5}, {"y", 10}};
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std::unordered_map<std::string, float> VARS_FLOAT = {{"x", 5.0f}, {"y", 10.0f}};
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std::unordered_map<std::string, double> VARS_DOUBLE = {{"x", 5.0f}, {"y", 10.0f}};
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try {
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// int
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EXPECT_RESULT_PASS(eval<int>("(2+3)*4", VARS_INT), 20);
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EXPECT_RESULT_PASS(eval<int>("x + y", VARS_INT), 15);
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EXPECT_RESULT_PASS(eval<int>("x - y", VARS_INT), -5);
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EXPECT_RESULT_PASS(eval<int>("x * y", VARS_INT), 50);
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EXPECT_RESULT_PASS(eval<int>("y / x", VARS_INT), 2);
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EXPECT_RESULT_FAIL(eval<int>("y / 0", VARS_INT), "Division by zero");
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EXPECT_RESULT_FAIL(eval<int>("unknownVar + 1", VARS_INT), "Unknown variable: unknownVar");
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// float
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EXPECT_RESULT_PASS(eval<float>("(2.0+3.0)*4.0", VARS_FLOAT), 20.0f);
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EXPECT_RESULT_PASS(eval<float>("x + y", VARS_FLOAT), 15.0f);
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EXPECT_RESULT_PASS(eval<float>("x - y", VARS_FLOAT), -5.0f);
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EXPECT_RESULT_PASS(eval<float>("x * y", VARS_FLOAT), 50.0f);
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EXPECT_RESULT_PASS(eval<float>("y / x", VARS_FLOAT), 2.0f);
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EXPECT_RESULT_FAIL(eval<float>("y / 0.0", VARS_FLOAT), "Division by zero");
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EXPECT_RESULT_FAIL(eval<float>("unknownVar + 1", VARS_FLOAT), "Unknown variable: unknownVar");
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// double
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EXPECT_RESULT_PASS(eval<double>("(2.0 + 3.0) * 4.0", VARS_DOUBLE), 20.0);
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EXPECT_RESULT_PASS(eval<double>("x + y", VARS_DOUBLE), 15.0);
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EXPECT_RESULT_PASS(eval<double>("x - y", VARS_DOUBLE), -5.0);
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EXPECT_RESULT_PASS(eval<double>("x * y", VARS_DOUBLE), 50.0);
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EXPECT_RESULT_PASS(eval<double>("y / x", VARS_DOUBLE), 2.0);
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EXPECT_RESULT_FAIL(eval<double>("y / 0.0", VARS_DOUBLE), "Division by zero");
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EXPECT_RESULT_FAIL(eval<double>("unknownVar + 1", VARS_DOUBLE), "Unknown variable: unknownVar");
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} catch (const std::exception& e) {
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std::cout << e.what() << "\n";
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ret = 1;
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}
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return ret;
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}
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