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Report one-character non-numeric array indices like basic_json in the view

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Develop's #5800 made basic_json report a JSON pointer array index such as
"/a" as parse_error.109 instead of out_of_range.404, as longer ones were;
the view's array_index() follows, with "-" and the empty token still
unresolved.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-10-11 12:44:42 +02:00
parent 7f3ba5a5bc
commit d1d0e303a0
2 changed files with 6 additions and 2 deletions
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4
include/nlohmann/detail/view/pointer.hpp
View File

@@ -51,7 +51,9 @@ index_status array_index(const StringType& s, std::size_t& idx) noexcept
{
return index_status::leading_zero;
}
if (s.size() > 1 && !(s[0] >= '1' && s[0] <= '9'))
// as basic_json: also a single character, but "-" and the empty token are
// left to the conversion below and reported as unresolved
if (!s.empty() && !(s.size() == 1 && s[0] == '-') && !(s[0] >= '0' && s[0] <= '9'))
{
return index_status::not_number;
}

4
single_include/nlohmann/json_view.hpp generated
View File

@@ -2551,7 +2551,9 @@ index_status array_index(const StringType& s, std::size_t& idx) noexcept
{
return index_status::leading_zero;
}
if (s.size() > 1 && !(s[0] >= '1' && s[0] <= '9'))
// as basic_json: also a single character, but "-" and the empty token are
// left to the conversion below and reported as unresolved
if (!s.empty() && !(s.size() == 1 && s[0] == '-') && !(s[0] >= '0' && s[0] <= '9'))
{
return index_status::not_number;
}