d改进翻译翻译|

满堂花醉三千客，一剑霜寒十四州。这篇文章主要讲述d改进翻译相关的知识，希望能为你提供帮助。
??原文????结构??可以是??函子??:

private @safe struct TranslatableStringPlural

string _str, _strpl;
this(string s1, string s2)// 必须的!
_str = s1;
_strpl = s2;

string opCall(int n)

auto fmt = ngettext(_str, _strpl, n);
if (countFormatSpecifiers(fmt) == 0)
// 改进该行.
return ()@trusted return fromStringz(& (format(fmt~"\\0%s", n)[0])); ();
return format(fmt, n);

现在,变成:

private @safe struct Strplusarg
this(string s)
fmt = s;
auto fs = countFormatSpecifiers(fmt);
//修复这句.
assert(fs==0||fs==1,"无效");
hasArg = fs == 1;

string fmt;
bool hasArg;

private @safe struct TranslatableStringPlural

//...前略
string opCall(int n)

auto f = n == 1 ? _str : _strpl;
return f.hasArg ? format(f.fmt, n) : f.fmt;

【d改进翻译】原代码:

@safe: private:
int countFormatSpecifiers(string fmt) pure

int count = 0;
auto f = FormatSpec!char(fmt);
if (!__ctfe)
//有ctfe
while (f.writeUpToNextSpec(nullSink))
count++;
else
auto a = appender!string;
while (f.writeUpToNextSpec(a))
count++;

return count;

修复为:

@safe: private:
int countFormatSpecifiers(string fmt) pure

static void ns(const(char)[] arr)
// 最简输出区间.
auto nullSink = & ns;
int count = 0;
auto f = FormatSpec!char(fmt);
while (f.writeUpToNextSpec(nullSink))
count++;
return count;