[Clarification]: 7.2 numeric-like matchs

[aleguy02]

Question

The "numeric-like" regex pattern in section 7.2 seems too permissive or perhaps incorrect. For instance, the pattern is

/^-?\d+(?:.\d+)?(?:e[+-]?\d+)?$/i

However, this would mean the first non-capturing group (?:.\d+) uses a dot which captures all, and would capture something like a123. It seems like the intended behavior is to capture decimal portions, thus the non-capturing group should be (?:.\d+)
(note the escaped dot character).

Is this intended and I am missing something or misreading it?

Specification Section

Section 7.2 Quoting Rules for String Values

Source of Confusion

The "numeric-like" regex pattern in section 7.2 seems too permissive or perhaps incorrect. For instance, the pattern is  

/^-?\d+(?:.\d+)?(?:e[+-]?\d+)?$/i

However, this would mean the first non-capturing group (?:.\d+) uses a dot which captures all, and would capture something like a123. It seems like the intended behavior is to capture decimal portions, thus the non-capturing group *should* be (?:\.\d+)
(note the escaped dot character).

Example Case

The pattern in the spec would match 12a34, which is not a number.

Use Case / Context

No response

Reference Implementation Behavior

No response

Checklist

• I have read the relevant specification sections
• I have searched for similar questions in existing issues
• I have checked the examples in the specification