briandfoy / pod-perldoc / 22619602259

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fix regex for perlapi search (#86)

perlapi entries are formatted as either

    =item foo

(before perl 5.34) or

    =item C<foo>

(perl 3.34 and later). The `(?:C<)?` part (optional prefix) makes sense in that context.

However, `(?:>)?\b` does not match as intended: `>\b` matches a `>` sign followed by a word boundary. Since `>` is not a word character, we must be at the beginning of a word and `\b` requires a word character to follow (as in `>foo`). This is never the case in perlapi and we always match `(?:>)` zero times.

Fortunately, `\b` on its own works as intended in all perlapi versions: Both `foo\n` and `foo>` are matched by `foo\b`, so just use `\b`, as before PR #76.

Also add `(?:C<)?` to the "related" search regex.

Co-authored-by: brian d foy <briandfoy@pobox.com>

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