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- function toUpper(str)
- local chars={A="a",B="b",C="c",D="d",E="e",F="f",G="g",H="h",I="i",J="j",K="k",L="l",M="m",N="n",O="o",P="p",Q="q",R="r",S="s",T="t",U="u",V="v",W="w",X="x",Y="y",Z="z"}
- for i=1, #str do
- if chars[string.sub(str,i,i)]~=nil then
- if i==1 then
- str=chars[string.sub(str,i,i)]..string.sub(str,2)
- else
- str=string.sub(str,1,i-1)..chars[string.sub(str,i,i)]..string.sub(str,i+1)
- end
- end
- end
- return str
- end
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