Crate perl_lsp_selection_range 

textDocument/selectionRange handler - smart selection expansion

This module provides intelligent selection expansion that grows from the narrowest syntactic element outward:

• Strings: string content -> full string (with quotes) -> expression
• Hash access: key -> subscript {key} -> full expression $h{key}
• Function names: name -> signature -> full sub definition
• General: word -> trimmed line -> statement -> block -> function -> file

Functions

selection_ranges

Generates smart selection ranges for given positions, expanding from the narrowest syntactic element outward to the file scope.