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https://github.com/RGBCube/serenity
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LibC+AK: Implement all sorts of wprintf variants
This commit is contained in:
Ali Mohammad Pur
Ali Mohammad Pur
parent
db7a6d6e74
commit
f0709c7a24
6 changed files with 93 additions and 37 deletions
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@ -19,8 +19,8 @@ extern "C" size_t strlen(const char*);
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namespace PrintfImplementation {
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template<typename PutChFunc, typename T>
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ALWAYS_INLINE int print_hex(PutChFunc putch, char*& bufptr, T number, bool upper_case, bool alternate_form, bool left_pad, bool zero_pad, u8 field_width)
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template<typename PutChFunc, typename T, typename CharType>
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ALWAYS_INLINE int print_hex(PutChFunc putch, CharType*& bufptr, T number, bool upper_case, bool alternate_form, bool left_pad, bool zero_pad, u8 field_width)
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{
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int ret = 0;
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@ -76,8 +76,8 @@ ALWAYS_INLINE int print_hex(PutChFunc putch, char*& bufptr, T number, bool upper
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return ret;
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_number(PutChFunc putch, char*& bufptr, u32 number, bool left_pad, bool zero_pad, u32 field_width)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_number(PutChFunc putch, CharType*& bufptr, u32 number, bool left_pad, bool zero_pad, u32 field_width)
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{
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u32 divisor = 1000000000;
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char ch;
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@ -117,8 +117,8 @@ ALWAYS_INLINE int print_number(PutChFunc putch, char*& bufptr, u32 number, bool
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return field_width;
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_u64(PutChFunc putch, char*& bufptr, u64 number, bool left_pad, bool zero_pad, u32 field_width)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_u64(PutChFunc putch, CharType*& bufptr, u64 number, bool left_pad, bool zero_pad, u32 field_width)
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{
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u64 divisor = 10000000000000000000LLU;
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char ch;
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@ -158,8 +158,8 @@ ALWAYS_INLINE int print_u64(PutChFunc putch, char*& bufptr, u64 number, bool lef
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return field_width;
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_double(PutChFunc putch, char*& bufptr, double number, bool left_pad, bool zero_pad, u32 field_width, u32 fraction_length)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_double(PutChFunc putch, CharType*& bufptr, double number, bool left_pad, bool zero_pad, u32 field_width, u32 fraction_length)
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{
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int length = 0;
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@ -180,8 +180,8 @@ ALWAYS_INLINE int print_double(PutChFunc putch, char*& bufptr, double number, bo
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return length + print_u64(putch, bufptr, (i64)fraction, false, true, fraction_length);
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_i64(PutChFunc putch, char*& bufptr, i64 number, bool left_pad, bool zero_pad, u32 field_width)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_i64(PutChFunc putch, CharType*& bufptr, i64 number, bool left_pad, bool zero_pad, u32 field_width)
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{
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// FIXME: This won't work if there is padding. ' -17' becomes '- 17'.
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if (number < 0) {
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@ -191,8 +191,8 @@ ALWAYS_INLINE int print_i64(PutChFunc putch, char*& bufptr, i64 number, bool lef
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return print_u64(putch, bufptr, number, left_pad, zero_pad, field_width);
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_octal_number(PutChFunc putch, char*& bufptr, u32 number, bool left_pad, bool zero_pad, u32 field_width)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_octal_number(PutChFunc putch, CharType*& bufptr, u32 number, bool left_pad, bool zero_pad, u32 field_width)
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{
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u32 divisor = 134217728;
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char ch;
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@ -232,8 +232,8 @@ ALWAYS_INLINE int print_octal_number(PutChFunc putch, char*& bufptr, u32 number,
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return field_width;
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_string(PutChFunc putch, char*& bufptr, const char* str, size_t len, bool left_pad, size_t field_width, bool dot, size_t fraction_length, bool has_fraction)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_string(PutChFunc putch, CharType*& bufptr, const char* str, size_t len, bool left_pad, size_t field_width, bool dot, size_t fraction_length, bool has_fraction)
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{
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if (has_fraction)
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len = min(len, fraction_length);
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@ -260,8 +260,8 @@ ALWAYS_INLINE int print_string(PutChFunc putch, char*& bufptr, const char* str,
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return field_width;
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}
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template<typename PutChFunc>
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ALWAYS_INLINE int print_signed_number(PutChFunc putch, char*& bufptr, int number, bool left_pad, bool zero_pad, u32 field_width, bool always_sign)
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template<typename PutChFunc, typename CharType>
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ALWAYS_INLINE int print_signed_number(PutChFunc putch, CharType*& bufptr, int number, bool left_pad, bool zero_pad, u32 field_width, bool always_sign)
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{
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if (number < 0) {
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putch(bufptr, '-');
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@ -285,9 +285,9 @@ struct ModifierState {
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bool always_sign { false };
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};
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template<typename PutChFunc, typename ArgumentListRefT, template<typename T, typename U = ArgumentListRefT> typename NextArgument>
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template<typename PutChFunc, typename ArgumentListRefT, template<typename T, typename U = ArgumentListRefT> typename NextArgument, typename CharType = char>
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struct PrintfImpl {
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ALWAYS_INLINE PrintfImpl(PutChFunc& putch, char*& bufptr, const int& nwritten)
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ALWAYS_INLINE PrintfImpl(PutChFunc& putch, CharType*& bufptr, const int& nwritten)
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: m_bufptr(bufptr)
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, m_nwritten(nwritten)
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, m_putch(putch)
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@ -376,14 +376,14 @@ struct PrintfImpl {
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char c = NextArgument<int>()(ap);
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return print_string(m_putch, m_bufptr, &c, 1, state.left_pad, state.field_width, state.dot, state.fraction_length, state.has_fraction_length);
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}
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ALWAYS_INLINE int format_unrecognized(char format_op, const char* fmt, const ModifierState&, ArgumentListRefT) const
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ALWAYS_INLINE int format_unrecognized(CharType format_op, const CharType* fmt, const ModifierState&, ArgumentListRefT) const
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{
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dbgln("printf_internal: Unimplemented format specifier {} (fmt: {})", format_op, fmt);
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return 0;
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}
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protected:
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char*& m_bufptr;
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CharType*& m_bufptr;
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const int& m_nwritten;
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PutChFunc& m_putch;
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};
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@ -401,15 +401,15 @@ struct VaArgNextArgument {
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ret += impl.format_##c(state, ap); \
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break;
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template<typename PutChFunc, template<typename T, typename U, template<typename X, typename Y> typename V> typename Impl = PrintfImpl, typename ArgumentListT = va_list, template<typename T, typename V = decltype(declval<ArgumentListT&>())> typename NextArgument = VaArgNextArgument>
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ALWAYS_INLINE int printf_internal(PutChFunc putch, char* buffer, const char*& fmt, ArgumentListT ap)
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template<typename PutChFunc, template<typename T, typename U, template<typename X, typename Y> typename V, typename C = char> typename Impl = PrintfImpl, typename ArgumentListT = va_list, template<typename T, typename V = decltype(declval<ArgumentListT&>())> typename NextArgument = VaArgNextArgument, typename CharType = char>
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ALWAYS_INLINE int printf_internal(PutChFunc putch, IdentityType<CharType>* buffer, const CharType*& fmt, ArgumentListT ap)
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{
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int ret = 0;
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char* bufptr = buffer;
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CharType* bufptr = buffer;
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Impl<PutChFunc, ArgumentListT&, NextArgument> impl { putch, bufptr, ret };
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Impl<PutChFunc, ArgumentListT&, NextArgument, CharType> impl { putch, bufptr, ret };
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for (const char* p = fmt; *p; ++p) {
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for (const CharType* p = fmt; *p; ++p) {
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ModifierState state;
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if (*p == '%' && *(p + 1)) {
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one_more:
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