Reduce small string allocations with simple char counting

[cynecx]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 16.66667% with 10 lines in your changes are missing coverage. Please review.

Please upload report for BASE (main@de947ab). Learn more about missing BASE report.

Files	Patch %	Lines
url/src/parser.rs	16.66%	10 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #935   +/-   ##
=======================================
  Coverage        ?   81.70%           
=======================================
  Files           ?       20           
  Lines           ?     3547           
  Branches        ?        0           
=======================================
  Hits            ?     2898           
  Misses          ?      649           
  Partials        ?        0           

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