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Implement precision + fill.

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This commit is contained in:
Victor Zverovich
2014-06-20 07:59:23 -07:00
parent 879838a539
commit c556926597
2 changed files with 31 additions and 8 deletions
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format.h
+18 -7
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@@ -1306,16 +1306,27 @@ typename BasicWriter<Char>::CharPtr BasicWriter<Char>::FormatString(
template <typename Char>
template <typename Spec>
typename fmt::BasicWriter<Char>::CharPtr
fmt::BasicWriter<Char>::PrepareFilledBuffer(unsigned num_digits,
const Spec &spec, const char *prefix, unsigned prefix_size) {
if (spec.precision() >= 0) {
// TODO: fill up to width if necessary
fmt::BasicWriter<Char>::PrepareFilledBuffer(
unsigned num_digits, const Spec &spec,
const char *prefix, unsigned prefix_size) {
unsigned width = spec.width();
if (spec.precision() > static_cast<int>(num_digits)) {
// Octal prefix '0' is counted as a digit, so ignore it if precision
// is specified.
if (prefix_size == 1)
prefix_size = 0;
unsigned number_size = prefix_size + spec.precision();
if (number_size < width) {
buffer_.reserve(width);
unsigned size = width - number_size;
CharPtr p = GrowBuffer(size);
std::fill(p, p + size, spec.fill());
// TODO: take alignment into account
}
return PrepareFilledBuffer(num_digits,
AlignSpec(spec.precision() + prefix_size, '0', ALIGN_NUMERIC),
prefix, prefix_size);
AlignSpec(number_size, '0', ALIGN_NUMERIC), prefix, prefix_size);
}
unsigned size = prefix_size + num_digits;
unsigned width = spec.width();
if (width <= size) {
CharPtr p = GrowBuffer(size);
std::copy(prefix, prefix + prefix_size, p);