chore: refactor parser

[ubogdan]

Describe the PR
improve code quality

Relation issue
None

Additional context
None

[codecov]

Codecov Report

Merging #1191 (a2b8060) into master (3b580a0) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1191      +/-   ##
==========================================
- Coverage   95.06%   95.02%   -0.04%     
==========================================
  Files          12       12              
  Lines        2534     2515      -19     
==========================================
- Hits         2409     2390      -19     
  Misses         68       68              
  Partials       57       57              

Impacted Files	Coverage Δ
parser.go	93.56% <100.00%> (-0.15%)	⬇️

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