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Expand the examples for std.format.unformatValue to show all uses cases

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This commit is contained in:
Jack Stouffer 2017-02-15 15:14:41 -05:00
parent eb2bf6fd6b
commit 316b4501b7
1 changed files with 61 additions and 6 deletions
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67
std/format.d
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@ -4719,15 +4719,19 @@ T unformatValue(T, Range, Char)(ref Range input, ref FormatSpec!Char spec)
}
/// Booleans
@system pure unittest
@safe pure unittest
{
auto str = "false";
auto spec = singleSpec("%s");
assert(unformatValue!bool(str, spec) == false);
str = "1";
spec = singleSpec("%d");
assert(unformatValue!bool(str, spec));
}
/// Null values
@system pure unittest
@safe pure unittest
{
auto str = "null";
auto spec = singleSpec("%s");
@ -4735,15 +4739,23 @@ T unformatValue(T, Range, Char)(ref Range input, ref FormatSpec!Char spec)
}
/// Integrals
@system pure unittest
@safe pure unittest
{
auto str = "123";
auto spec = singleSpec("%s");
assert(str.unformatValue!int(spec) == 123);
str = "ABC";
spec = singleSpec("%X");
assert(str.unformatValue!int(spec) == 2748);
str = "11610";
spec = singleSpec("%o");
assert(str.unformatValue!int(spec) == 5000);
}
/// Floating point numbers
@system pure unittest
@safe pure unittest
{
import std.math : approxEqual;
@ -4753,11 +4765,54 @@ T unformatValue(T, Range, Char)(ref Range input, ref FormatSpec!Char spec)
}
/// Character input ranges
@system pure unittest
@safe pure unittest
{
auto str = "aaa";
auto spec = singleSpec("%s");
assert(unformatValue!char(str, spec) == 'a');
assert(str.unformatValue!char(spec) == 'a');
// Using a numerical format spec reads a Unicode value from a string
str = "65";
spec = singleSpec("%d");
assert(str.unformatValue!char(spec) == 'A');
str = "41";
spec = singleSpec("%x");
assert(str.unformatValue!char(spec) == 'A');
str = "10003";
spec = singleSpec("%d");
assert(str.unformatValue!dchar(spec) == '✓');
}
/// Arrays and static arrays
@safe pure unittest
{
string str = "aaa";
auto spec = singleSpec("%s");
assert(str.unformatValue!(dchar[])(spec) == "aaa"d);
str = "aaa";
spec = singleSpec("%s");
dchar[3] ret = ['a', 'a', 'a'];
assert(str.unformatValue!(dchar[3])(spec) == ret);
str = "[1, 2, 3, 4]";
spec = singleSpec("%s");
assert(str.unformatValue!(int[])(spec) == [1, 2, 3, 4]);
str = "[1, 2, 3, 4]";
spec = singleSpec("%s");
int[4] ret2 = [1, 2, 3, 4];
assert(str.unformatValue!(int[4])(spec) == ret2);
}
/// Associative arrays
@safe pure unittest
{
auto str = `["one": 1, "two": 2]`;
auto spec = singleSpec("%s");
assert(str.unformatValue!(int[string])(spec) == ["one": 1, "two": 2]);
}
@safe pure unittest