catch exceptions for json_pointer : ..../+99

[dota17]

From RFC 6901, Section 4:

The ABNF syntax for array indices is:
array-index = %x30 / ( %x31-39 *(%x30-39) )
; "0", or digits without a leading "0"

The array index must not begin with signed char either.
Currently, the path .../+99 works, and it maybe not right.

[coveralls]

Coverage decreased (-0.3%) to 99.714% when pulling bfc003c on dota17:json_pointer into 54656ef on nlohmann:develop.

[nlohmann]

Good catch!

Could you please review the lines that became uncovered (https://coveralls.io/builds/29418441/source?filename=include%2Fnlohmann%2Fdetail%2Fjson_pointer.hpp#L418) and check if you could add a respective test?

[dota17]

@nlohmann
OK, i will add some testcases for this.

[RobBeyer]

@dota17
Commit is fantastic. Addresses all _json_pointer array_index() & contains() issues raised and cleans up/DRYs code in the process. Cheers!

[dota17]

Sorry, i had been busy for the past few days.
And since the #2009 is fixed, i can get the report of coverall and i will add testcases for the following days.

[dota17]

@nlohmann
please restart those jobs -The job exceeded the maximum time limit for jobs, and has been terminated.

[nlohmann]

Looks good to me.

[nlohmann]

Thanks!

[nlohmann]

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🔖 Release item

This issue/PR will be part of the next release of the library. This template helps preparing the release notes.

Type

• ✨ New Feature
• 🐛 Bug Fix
• ⚡️ Improvement
• 🔨 Further Change
• 🔥 Deprecated function

Description

• Fix JSON Pointer parser to reject array indices starting with +. catch exceptions for json_pointer : ..../+99 #1990

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