tiny.smg.cli.facts

1const std = @import("std");23const smg = @import("../root.zig");4const rules = smg.rules;56pub fn valueText(allocator: std.mem.Allocator, value: rules.FactValue) ![]const u8 {7    return switch (value) {8        .number => |number| if (number == @floor(number)) try std.fmt.allocPrint(allocator, "{d}", .{@as(i64, @intFromFloat(number))}) else try std.fmt.allocPrint(allocator, "{d}", .{number}),9        .float_number => |number| try floatText(allocator, number),10        .boolean => |boolean| if (boolean) "true" else "false",11    };12}1314pub fn floatText(allocator: std.mem.Allocator, number: f64) ![]const u8 {15    if (number == @floor(number)) return try std.fmt.allocPrint(allocator, "{d:.1}", .{number});16    return try std.fmt.allocPrint(allocator, "{d}", .{number});17}1819test "fact value text preserves integer and float spellings" {20    const allocator = std.testing.allocator;21    const int_text = try valueText(allocator, .{ .number = 7 });22    defer allocator.free(int_text);23    try std.testing.expectEqualStrings("7", int_text);24    const float_text = try valueText(allocator, .{ .float_number = 7 });25    defer allocator.free(float_text);26    try std.testing.expectEqualStrings("7.0", float_text);27    const fractional_text = try valueText(allocator, .{ .float_number = 7.25 });28    defer allocator.free(fractional_text);29    try std.testing.expectEqualStrings("7.25", fractional_text);30    try std.testing.expectEqualStrings("true", try valueText(allocator, .{ .boolean = true }));31}

1pub const facts = @import("facts.zig");