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Put real formatting code into a separate function

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This commit is contained in:
Eugen Wissner 2017-12-09 10:02:54 +01:00
parent 907f7a4e61
commit 2a68048fc1
1 changed files with 197 additions and 194 deletions
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101
source/tanya/format/package.d
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@ -505,50 +505,9 @@ if (T.sizeof == U.sizeof)
copy((&src)[0 .. 1], (&dest)[0 .. 1]);
}
private ref String printToString(string fmt, Args...)(return ref String result,
auto ref Args args)
private void formatReal(T)(ref T arg ,ref String result)
if (isFloatingPoint!T)
{
static if (is(Unqual!(Args[0]) == typeof(null)))
{
result.insertBack("null");
}
else static if(is(Unqual!(Args[0]) == bool))
{
result.insertBack(args[0] ? "true" : "false");
}
else static if (is(Unqual!(typeof(args[0].stringify())) == String))
{
result.insertBack(args[0].stringify()[]);
}
else static if (isClass!(Args[0]))
{
result.insertBack(args[0].toString());
}
else static if (isInterface!(Args[0]))
{
result.insertBack(Args[0].classinfo.name);
}
else static if (isStruct!(Args[0]))
{
result.insertBack(typeid(Args[0]).name);
}
else static if (isSomeString!(Args[0])) // String
{
if (args[0] is null)
{
result.insertBack("null");
}
else
{
result.insertBack(args[0]);
}
}
else static if (isSomeChar!(Args[0])) // Char
{
result.insertBack(args[0]);
}
else static if (isFloatingPoint!(Args[0])) // Float
{
char[512] buffer; // Big enough for e+308 or e-307.
char[8] tail = 0;
char[] bufferSlice = buffer[64 .. $];
@ -557,7 +516,7 @@ private ref String printToString(string fmt, Args...)(return ref String result,
int decimalPoint;
// Read the double into a string.
auto realString = real2String(args[0], buffer, decimalPoint, negative);
auto realString = real2String(arg, buffer, decimalPoint, negative);
auto length = cast(uint) realString.length;
// Clamp the precision and delete extra zeros after clamp.
@ -566,9 +525,7 @@ private ref String printToString(string fmt, Args...)(return ref String result,
{
length = precision;
}
while ((length > 1)
&& (precision != 0)
&& (realString[length - 1] == '0'))
while ((length > 1) && (precision != 0) && (realString[length - 1] == '0'))
{
--precision;
--length;
@ -581,7 +538,7 @@ private ref String printToString(string fmt, Args...)(return ref String result,
if (decimalPoint == special)
{
result.insertBack(realString);
goto ParamEnd;
return;
}
// Should we use sceintific notation?
@ -742,6 +699,53 @@ private ref String printToString(string fmt, Args...)(return ref String result,
result.insertBack(buffer[64 .. length]); // Number.
result.insertBack(tail[1 .. tail[0] + 1]); // Tail.
}
private ref String printToString(string fmt, Args...)(return ref String result,
auto ref Args args)
{
static if (is(Unqual!(Args[0]) == typeof(null)))
{
result.insertBack("null");
}
else static if(is(Unqual!(Args[0]) == bool))
{
result.insertBack(args[0] ? "true" : "false");
}
else static if (is(Unqual!(typeof(args[0].stringify())) == String))
{
result.insertBack(args[0].stringify()[]);
}
else static if (isClass!(Args[0]))
{
result.insertBack(args[0].toString());
}
else static if (isInterface!(Args[0]))
{
result.insertBack(Args[0].classinfo.name);
}
else static if (isStruct!(Args[0]))
{
result.insertBack(typeid(Args[0]).name);
}
else static if (isSomeString!(Args[0])) // String
{
if (args[0] is null)
{
result.insertBack("null");
}
else
{
result.insertBack(args[0]);
}
}
else static if (isSomeChar!(Args[0])) // Char
{
result.insertBack(args[0]);
}
else static if (isFloatingPoint!(Args[0])) // Float
{
formatReal(args[0], result);
}
else static if (isPointer!(Args[0])) // Pointer
{
@ -768,7 +772,6 @@ private ref String printToString(string fmt, Args...)(return ref String result,
{
result.insertBack(Args[0].stringof);
}
ParamEnd:
return result;
}