:muscle: fix strlib.format to support a dictionary
:sparkles: fix to remove duplicate code
:muscle: implement strlib.isAlpha and strlib.isNumber
:sparkles: fix local variables
:sparkles: fix error message which uses strlib.format
:sparkles: this.columnNumber
build v0.0.63
Merge pull request #93 from mohayonao/cleanup-code

Cleanup code