429 lines
13 KiB
Lua
429 lines
13 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 floorint,format=math.floor,string.format
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local find,sub,gsub=string.find,string.sub,string.gsub
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local rep,upper=string.rep,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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-- [LOW PERFORMANCE!]
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local upperData,lowerData,diaData
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function STRING.upperUTF8(str)
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for _,pair in next,upperData do
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str=str:gsub(pair[1],pair[2])
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end
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return str
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end
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function STRING.lowerUTF8(str)
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for _,pair in next,lowerData do
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str=str:gsub(pair[1],pair[2])
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end
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return str
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end
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function STRING.remDiacritics(str)
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for _,pair in next,diaData do
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str=str:gsub(pair[1],pair[2])
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end
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return str
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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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local MINUTE=60
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local HOUR=3600
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local DAY=86400
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local YEAR=31536000 -- 365 days
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local function convertSecondsToUnits(t) -- convert seconds to {seconds, minutes, hours, days, years}
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local years=floorint(t/YEAR)
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local remainder=t%YEAR
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local days=floorint(remainder/DAY)
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remainder=remainder%DAY
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local hours=floorint(remainder/HOUR)
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remainder=remainder%HOUR
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local minutes=floorint(remainder/MINUTE)
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local seconds=remainder%MINUTE
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return seconds,minutes,hours,days,years
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end
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-- MM:SS
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function STRING.time_simp(t)
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return format("%02d:%02d",floorint(t/MINUTE),floorint(t%MINUTE))
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end
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local timeLetters={' y',' d',' h',' m',' s',' ms'}
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-- Display 2 largest units of time.
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function STRING.time_short(t)
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-- Early returns to prevent nil values
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if t<0 then return '-'..STRING.time_short(-t) end -- negative time
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if t<1 then return math.floor(t*1000)..timeLetters[6] end -- 123 ms
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if t<MINUTE then return math.floor(t)..timeLetters[5]..' '..math.floor((t%1)*1000)..timeLetters[6] end -- 12s 345ms
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local timeUnits={convertSecondsToUnits(t)}
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TABLE.reverse(timeUnits)
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-- floor seconds
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timeUnits[#timeUnits]=floorint(timeUnits[#timeUnits])
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for i=1,#timeUnits do
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if timeUnits[i]>0 then
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return timeUnits[i]..timeLetters[i]..' '..timeUnits[i+1]..timeLetters[i+1]
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end
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end
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end
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function STRING.time(t)
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local s,m,h,d,y=convertSecondsToUnits(t)
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if t<MINUTE then
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return format("%.3f″",t) -- example: 12.345″
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elseif t<HOUR then
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return format("%d′%05.2f″",m,s) -- 1′23.45″
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elseif t<DAY then
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return format("%d:%.2d′%04.1f″",h,m,s) -- 12:34′56.7″
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elseif t<YEAR then
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return format("%dd %d:%.2d′%.2d″",d,h,m,s) -- 123d 12:34′56″
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else
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return format("%dy %dd %d:%.2d′",y,d,h,m) -- 1y 234d 12:34′
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end
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end
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function STRING.time_ext(t)
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local s,m,h,d,y=convertSecondsToUnits(t)
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if t<MINUTE then
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return format("%.5f″",t) -- 12.34567″
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elseif t<HOUR then
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return format("%d′%06.3f″",m,s) -- 1′23.456″
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elseif t<DAY then
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return format("%d:%.2d′%05.2f″",h,m,s) -- 12:34′56.78″
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elseif t<YEAR then
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return format("%dd %d:%.2d′%04.1f″",d,h,m,s) -- 123d 12:34′56.7″
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else
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return format("%dy %dd %d:%.2d′%.2d″",y,d,h,m,s) -- 1y 234d 12:34′56″
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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+floorint(n/2^06),128+n%2^6)
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elseif n<2^16 then return char(224+floorint(n/2^12),128+floorint(n/2^06)%2^6,128+n%2^6)
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elseif n<2^21 then return char(240+floorint(n/2^18),128+floorint(n/2^12)%2^6,128+floorint(n/2^06)%2^6,128+n%2^6)
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elseif n<2^26 then return char(248+floorint(n/2^24),128+floorint(n/2^18)%2^6,128+floorint(n/2^12)%2^6,128+floorint(n/2^06)%2^6,128+n%2^6)
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elseif n<2^31 then return char(252+floorint(n/2^30),128+floorint(n/2^24)%2^6,128+floorint(n/2^18)%2^6,128+floorint(n/2^12)%2^6,128+floorint(n/2^06)%2^6,128+n%2^6)
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end
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end
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do-- functions to shorted big numbers
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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~=1/0 then
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local e=floorint(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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local MIN_SI=-30 -- current lowest order of magnitude for SI units (quecto-; 10^-30)
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local MAX_SI=30 -- current highest order of magnitude for SI units (quetta-; 10^30)
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local SI_SHORT={
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[-30]='q',[-27]='r',[-24]='y',[-21]='z',[-18]='a',[-15]='f',[-12]='p',
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[-9]='n',[-6]='μ',[-3]='m',[0]='',[3]='k',[6]='M',[9]='G',
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[12]='T',[15]='P',[18]='E',[21]='Z',[24]='Y',[27]='R',[30]='Q'
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}
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local SI_LONG={
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[-30]='quecto',[-27]='ronto',[-24]='yocto',[-21]='zepto',[-18]='atto',[-15]='femto',[-12]='pico',
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[-9]='nano',[-6]='micro',[-3]='milli',[0]='',[3]='kilo',[6]='mega',[9]='giga',
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[12]='tera',[15]='peta',[18]='exa',[21]='zetta',[24]='yotta',[27]='ronna',[30]='quetta'
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}
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--[[
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Converts a number into SI notation with letter prefixes.
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NOTE: Only power-of-thousand prefixes; no deci-/centi-.
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Arguments:
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- num: The number to be converted to SI notation.
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- unit: [optional] The unit to be concatenated at the end.
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Example: STRING.SI(10^-9,"m") --> "1 nm"
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]]
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function STRING.SI(num, unit)
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unit=unit or ''
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local order=MATH.clamp(3*math.floor(math.log10(num)/3),MIN_SI,MAX_SI)
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local prefix=SI_SHORT[order]
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local scaledNum=num/10^order
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local formattedNum=string.format('%.3f', scaledNum):gsub('%.?0+$','')
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return formattedNum.." "..prefix..unit
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end
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--[[
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Converts a number into SI notation with word prefixes.
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NOTE: Only power-of-thousand prefixes; no deci-/centi-.
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Arguments:
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- num: The number to be converted to SI notation.
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- unit: [optional] The unit to be concatenated at the end.
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Example: STRING.SI(10^9,"hertz") --> "1 megahertz"
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]]
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function STRING.SILong(num, unit)
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unit=unit or ''
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local order=MATH.clamp(3*math.floor(math.log10(num)/3),MIN_SI,MAX_SI)
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local prefix=SI_LONG[order]
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local scaledNum=num/10^order
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local formattedNum=string.format('%.3f', scaledNum):gsub('%.?0+$','')
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return formattedNum.." "..prefix..unit
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end
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end
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do-- function STRING.toBin, STRING.toOct, STRING.toHex(n,len)
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function STRING.toBin(n,len)
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local s=""
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while n>0 do
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s=(n%2)..s
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n=floorint(n/2)
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end
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if len then
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return rep("0",len-#s)..s
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else
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return s
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end
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end
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function STRING.toOct(n,len)
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local s=""
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while n>0 do
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s=(n%8)..s
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n=floorint(n/8)
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end
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if len then
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return rep("0",len-#s)..s
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else
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return s
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end
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end
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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.toHex(n,len)
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local s=""
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while n>0 do
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s=b16[n%16]..s
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n=floorint(n/16)
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end
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if len then
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return rep("0",len-#s)..s
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else
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return s
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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.readChars(str,n)
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return sub(str,1,n),sub(str,n+1)
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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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do
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local function parseFile(fname)
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local d
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if love and love.filesystem and type(love.filesystem.read)=='function' then
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d=love.filesystem.read(fname)
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else
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local f=io.open(fname,'r')
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if f then
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d=f:read('a')
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f:close()
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end
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end
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if not d then
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print("ERROR: Failed to read the data from "..fname)
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return {}
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end
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d=STRING.split(gsub(d,'\n',','),',')
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for i=1,#d do
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d[i]=STRING.split(d[i],'=')
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end
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return d
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end
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upperData=parseFile('Zframework/upcaser.txt')
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lowerData=parseFile('Zframework/lowcaser.txt')
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diaData=parseFile('Zframework/diacritics.txt')
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end
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return STRING
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