Add support Decimal and ptr slice

[pei0804]

for #112

[codecov-io]

Codecov Report

Merging #113 into master will increase coverage by 0.55%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #113      +/-   ##
==========================================
+ Coverage   86.55%   87.11%   +0.55%     
==========================================
  Files           5        5              
  Lines         766      776      +10     
==========================================
+ Hits          663      676      +13     
+ Misses         62       60       -2     
+ Partials       41       40       -1

Impacted Files	Coverage Δ
property.go	83.72% <83.33%> (+4.93%)	⬆️
parser.go	82.75% <0%> (+0.79%)	⬆️

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[easonlin404]

LGTM