229 lines
6.6 KiB
Lua
229 lines
6.6 KiB
Lua
local data=love.data
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local STRING={}
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local assert,tostring,tonumber=assert,tostring,tonumber
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local int,format=math.floor,string.format
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local find,sub,gsub,upper=string.find,string.sub,string.gsub,string.upper
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local char,byte=string.char,string.byte
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--"Replace dollars", replace all $n with ...
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function STRING.repD(str,...)
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local l={...}
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for i=#l,1,-1 do
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str=gsub(str,'$'..i,l[i])
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end
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return str
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end
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--"Scan arg", scan if str has the arg (format of str is like "-json -q", arg is like "-q")
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function STRING.sArg(str,switch)
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if find(str.." ",switch.." ")then
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return true
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end
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end
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do--function STRING.shiftChar(c)
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local shiftMap={
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['1']='!',['2']='@',['3']='#',['4']='$',['5']='%',
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['6']='^',['7']='&',['8']='*',['9']='(',['0']=')',
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['`']='~',['-']='_',['=']='+',
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['[']='{',[']']='}',['\\']='|',
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[';']=':',['\'']='"',
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[',']='<',['.']='>',['/']='?',
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}
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function STRING.shiftChar(c)
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return shiftMap[c]or upper(c)
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end
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end
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function STRING.trim(s)
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if not s:find("%S")then return""end
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s=s:sub((s:find("%S"))):reverse()
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return s:sub((s:find("%S"))):reverse()
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end
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function STRING.split(s,sep,regex)
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local L={}
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local p1,p2=1--start,target
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if regex then
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while p1<=#s do
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p2=find(s,sep,p1)or #s+1
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L[#L+1]=sub(s,p1,p2-1)
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p1=p2+#sep
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end
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else
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while p1<=#s do
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p2=find(s,sep,p1,true)or #s+1
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L[#L+1]=sub(s,p1,p2-1)
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p1=p2+#sep
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end
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end
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return L
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end
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function STRING.simpEmailCheck(e)
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e=STRING.split(e,"@")
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if #e~=2 then return false end
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if e[1]:sub(-1)=="."or e[2]:sub(-1)=="."then return false end
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local e1,e2=STRING.split(e[1],"."),STRING.split(e[2],".")
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if #e1*#e2==0 then return false end
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for _,v in next,e1 do if #v==0 then return false end end
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for _,v in next,e2 do if #v==0 then return false end end
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return true
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end
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function STRING.time_simp(t)
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return format("%02d:%02d",int(t/60),int(t%60))
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end
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function STRING.time(t)
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if t<60 then
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return format("%.3f\"",t)
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elseif t<3600 then
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return format("%d'%05.2f\"",int(t/60),int(t%60*100)/100)
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else
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return format("%d:%.2d'%05.2f\"",int(t/3600),int(t/60%60),int(t%60*100)/100)
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end
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end
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function STRING.UTF8(n)--Simple utf8 coding
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assert(type(n)=='number',"Wrong type ("..type(n)..")")
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assert(n>=0 and n<2^31,"Out of range ("..n..")")
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if n<2^7 then return char(n)
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elseif n<2^11 then return char(192+int(n/2^06),128+n%2^6)
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elseif n<2^16 then return char(224+int(n/2^12),128+int(n/2^06)%2^6,128+n%2^6)
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elseif n<2^21 then return char(240+int(n/2^18),128+int(n/2^12)%2^6,128+int(n/2^06)%2^6,128+n%2^6)
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elseif n<2^26 then return char(248+int(n/2^24),128+int(n/2^18)%2^6,128+int(n/2^12)%2^6,128+int(n/2^06)%2^6,128+n%2^6)
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elseif n<2^31 then return char(252+int(n/2^30),128+int(n/2^24)%2^6,128+int(n/2^18)%2^6,128+int(n/2^12)%2^6,128+int(n/2^06)%2^6,128+n%2^6)
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end
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end
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do--function STRING.bigInt(t)
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local lg=math.log10
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local units={"","K","M","B","T","Qa","Qt","Sx","Sp","Oc","No"}
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local preUnits={"","U","D","T","Qa","Qt","Sx","Sp","O","N"}
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local secUnits={"Dc","Vg","Tg","Qd","Qi","Se","St","Og","Nn","Ce"}--Ce is next-level unit, but DcCe is not used so used here
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for _,preU in next,preUnits do for _,secU in next,secUnits do table.insert(units,preU..secU)end end
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function STRING.bigInt(t)
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if t<1000 then
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return tostring(t)
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elseif t~=1e999 then
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local e=int(lg(t)/3)
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return(t/10^(e*3))..units[e+1]
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else
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return"INF"
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end
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end
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end
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function STRING.hexColor(str)--[LOW PERFORMENCE]
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assert(type(str)=='string')
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if str:sub(1,1)=="#"then str=str:sub(2)end
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assert(#str<=8)
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local r=(tonumber(str:sub(1,2),16)or 0)/255
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local g=(tonumber(str:sub(3,4),16)or 0)/255
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local b=(tonumber(str:sub(5,6),16)or 0)/255
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local a=(tonumber(str:sub(7,8),16)or 255)/255
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return r,g,b,a
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end
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do--function STRING.urlEncode(s)
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local rshift=bit.rshift
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local b16={[0]='0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}
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function STRING.urlEncode(s)
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local out=""
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for i=1,#s do
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if s:sub(i,i):match("[a-zA-Z0-9]")then
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out=out..s:sub(i,i)
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else
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local b=s:byte(i)
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out=out.."%"..b16[rshift(b,4)]..b16[b%16]
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end
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end
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return out
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end
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end
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function STRING.vcsEncrypt(text,key)
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local keyLen=#key
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local result=""
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local buffer=""
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for i=0,#text-1 do
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buffer=buffer..char((byte(text,i+1)-32+byte(key,i%keyLen+1))%95+32)
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if #buffer==26 then
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result=result..buffer
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buffer=""
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end
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end
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return result..buffer
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end
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function STRING.vcsDecrypt(text,key)
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local keyLen=#key
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local result=""
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local buffer=""
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for i=0,#text-1 do
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buffer=buffer..char((byte(text,i+1)-32-byte(key,i%keyLen+1))%95+32)
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if #buffer==26 then
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result=result..buffer
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buffer=""
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end
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end
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return result..buffer
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end
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function STRING.digezt(text)--Not powerful hash, just protect the original text
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local out={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
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local seed=26
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for i=1,#text do
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local c=byte(text,i)
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seed=(seed+c)%26
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c=c+seed
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local pos=c*i%16
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local step=(c+i)%4+1
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local times=2+(c%6)
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for _=1,times do
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out[pos+1]=(out[pos+1]+c)%256
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pos=(pos+step)%16
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end
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end
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local result=""
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for i=1,16 do result=result..char(out[i])end
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return result
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end
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function STRING.readLine(str)
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local p=str:find("\n")
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if p then
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return str:sub(1,p-1),str:sub(p+1)
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else
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return str,""
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end
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end
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function STRING.packBin(s)
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return data.encode('string','base64',data.compress('string','zlib',s))
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end
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function STRING.unpackBin(str)
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local res
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res,str=pcall(data.decode,'string','base64',str)
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if not res then return end
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res,str=pcall(data.decompress,'string','zlib',str)
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if res then return str end
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end
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function STRING.packText(s)
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return data.encode('string','base64',data.compress('string','gzip',s))
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end
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function STRING.unpackText(str)
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local res
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res,str=pcall(data.decode,'string','base64',str)
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if not res then return end
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res,str=pcall(data.decompress,'string','gzip',str)
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if res then return str end
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end
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function STRING.packTable(t)
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return STRING.packText(JSON.encode(t))
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end
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function STRING.unpackTable(t)
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return JSON.decode(STRING.unpackText(t))
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end
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return STRING
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