function escape_lua_regex(str)
return mw.ustring.gsub(str, ".", {
["%"] = "%%";
["^"] = "%^";
["$"] = "%$";
["."] = "%.";
["("] = "%(";
[")"] = "%)";
["["] = "%[";
["]"] = "%]";
["?"] = "%?";
["*"] = "%*";
["+"] = "%+";
["-"] = "%-";
["\0"] = "%z";
})
end
local Str = {}
function Str.len(frame)
return mw.ustring.len(frame.args[1])
end
function Str.left(frame)
local idx = tonumber(frame.args[2])
if (not idx) or idx < 1 then
return ""
end
return mw.ustring.sub(frame.args[1],1,idx)
end
function Str.right(frame)
local laenge = tonumber(frame.args[2])
if (not laenge) or laenge < 1 then
return ""
else
laenge = - laenge
end
return mw.ustring.sub(frame.args[1],laenge,-1)
end
function Str.index(frame)
local idx = tonumber(frame.args[2])
if (not idx) or idx < 1 then
return ""
end
return mw.ustring.sub(frame.args[1],idx,idx)
end
function Str.sub(frame)
local von = tonumber(frame.args[2])
local laenge = tonumber(frame.args[3])
if (not von) or (not laenge) then
return ""
end
if (von < 1) then
von = 1
end
local bis = von + laenge - 1
if (bis < von) then
return ""
end
return mw.ustring.sub(frame.args[1],von,bis)
end
function Str.crop(frame)
local s = frame.args[1]
local cut = tonumber(frame.args[2])
local laenge = mw.ustring.len(s)
if (not cut) or (cut < 1) then
return s
end
return mw.ustring.sub(s,1,laenge - cut)
end
function Str.cropleft(frame)
local s = frame.args[1]
local cut = tonumber(frame.args[2])
local laenge = mw.ustring.len(s)
if (not cut) or (cut < 1) then
return s
end
return mw.ustring.sub(s,cut+1,-1)
end
function Str.find(frame)
if not frame.args[2] or frame.args[2] == "" then
return 1
end
local idx = mw.ustring.find(frame.args[1], frame.args[2],1, true)
if idx then
return idx
else
return -1
end
end
function Str.hex2dez(frame)
a = tonumber(frame.args[1],16)
if a then
return a
else
return 0
end
end
function Str.match(frame)
local text = frame.args[1] or ""
local pattern = frame.args[2] or ""
local index = tonumber(frame.args[3]) or 0
if (text == "" or pattern == "") then return "" end
-- return all captures (denoted by brackets in the pattern) if index is zero, otherwise return only the index-th capture
if index <= 0 then
return mw.ustring.match(text, pattern)
else
return ({mw.ustring.match(text, pattern)})[index]
end
end
function Str.rep(frame)
local repetitions = tonumber(frame.args[2]) or 0;
return mw.ustring.rep( frame.args[1] or '', repetitions )
end
function Str.replace(frame)
local text = frame.args[1] or "" -- Text, der bearbeitet werden soll
local search = frame.args[2] or "" -- Textstellen innerhalb von "text" die ersetzt werden sollen
if text == "" or search == "" then return "" end
local replace = frame.args[3] or "" -- Ersetzungstext
local count = tonumber(frame.args[4]) -- Anzahl der Ersetzungen (optional)
local regexsearch = frame.args[5] -- beliebiger Wert um dafür zu sorgen, dass der Suchtext "search" als Lua-regulärer Ausdruck behandelt werden soll
if not regexsearch or regexsearch == "" then
search = escape_lua_regex(search)
replace = mw.ustring.gsub(replace, "%%", "%%%%")
end
local result
if count then
result,_ = mw.ustring.gsub(text, search, replace, count)
else
result,_ = mw.ustring.gsub(text, search, replace)
end
return result
end
-- richtet Zahlen numerisch aus
function Str.adjustnumber(frame)
local ausgabe;
local text = frame.args[1] or "" -- Text, der bearbeitet werden soll, i.d.R. eine Dezimalzahl
local i_li = math.floor(tonumber(frame.args[2])) or 2; -- maximale Stellen links vom Trennzeichen
local i_re = math.floor(tonumber(frame.args[3])) or 2; -- maximale Stellen rechts vom Trennzeichen
local sign = frame.args['Z'] or "," -- Trennzeichen
local zeroes='00000000000000000000'; -- 20 duerften ausreichen.
local zpos = 0;
local len = mw.ustring.len(text);
if not text or sign == "" then
zpos = len + 1;
else
zpos = mw.ustring.find(text, sign,1, true) or len;
end
local zl = 0;
local zr = 0;
local t_li = "";
local t_re = "";
local z_li ="";
local z_re ="";
if zpos > 1 then
t_li = mw.ustring.sub(text,1, zpos-1);
else
t_li="";
end
if len-zpos > 0 then
t_re = mw.ustring.sub(text,zpos+1,-1);
else
t_re="";
end
zl = i_li - mw.ustring.len(t_li);
if zl < 1 then
zl = 0;
z_li = "";
else
z_li = '<span style="visibility:hidden;">' .. mw.ustring.sub(zeroes,1,zl) .. '</span>';
end
zr = i_re - mw.ustring.len(t_re);
if zr < 1 then
zr = 0;
z_re ="";
else
z_re ='<span style="visibility:hidden;">' .. mw.ustring.sub(zeroes,1,zr) .. '</span>';
end
ausgabe = z_li .. t_li .. sign .. t_re .. z_re;
return ausgabe;
end
return Str
