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Make parse_arg_id more readable

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This commit is contained in:
Victor Zverovich 2019-11-20 08:12:23 -08:00
parent 092d2dc7b2
commit 404a880bd4
1 changed files with 11 additions and 5 deletions
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14
include/fmt/format.h
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@ -2328,16 +2328,22 @@ FMT_CONSTEXPR const Char* parse_arg_id(const Char* begin, const Char* end,
IDHandler&& handler) {
FMT_ASSERT(begin != end, "");
Char c = *begin;
if (c == '}' || c == ':') return handler(), begin;
if (c == '}' || c == ':') {
handler();
return begin;
}
if (c >= '0' && c <= '9') {
int index = parse_nonnegative_int(begin, end, handler);
if (begin == end || (*begin != '}' && *begin != ':'))
return handler.on_error("invalid format string"), begin;
handler.on_error("invalid format string");
else
handler(index);
return begin;
}
if (!is_name_start(c))
return handler.on_error("invalid format string"), begin;
if (!is_name_start(c)) {
handler.on_error("invalid format string");
return begin;
}
auto it = begin;
do {
++it;