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module(...,package.seeall)
require "zip"
local xmlparser = require ("luaxml-mod-xml")
local handler = require("luaxml-mod-handler")
local namedRanges = {}
function load(filename)
local p = {
file = zip.open(filename),
content_file_name = "content.xml",
loadContent = function(self,filename)
local treehandler = handler.simpleTreeHandler()
local filename = filename or self.content_file_name
local xmlfile = self.file:open(filename)
local text = xmlfile:read("*a")
local xml = xmlparser.xmlParser(treehandler)
xml:parse(text)
return treehandler
end
}
return p
end
function getTable(x,table_name)
local t = getTable0(x,table_name)
local t2 = {}
for key, val in pairs(t) do
if key == "table:table-row" then
local rows = {}
for i = 1, #val do
local r = val[i]
local rowRep = r["_attr"]["table:number-rows-repeated"] or 1
row = {}
row["_attr"] = r["_attr"]
local cc = r["table:table-cell"] or {}
if #cc == 0 then
cc = {cc}
end
local columns = {}
--for j = 1, #cc do
-- local c = cc[j]
for _, c in ipairs(cc) do
c["_attr"] = c["_attr"] or {}
local colRep = c["_attr"]["table:number-columns-repeated"] or 1
for k = 1, colRep, 1 do
table.insert(columns, c)
end
end
row["table:table-cell"] = columns
for j = 1, rowRep, 1 do
table.insert(rows, row)
end
end
t2[key] = rows
else
t2[key] = val
end
end
return t2
end
function getTable0(x,table_name)
local tables = x.root["office:document-content"]["office:body"]["office:spreadsheet"]["table:table"]
namedRanges = loadNameRanges(x, table_name)
if #tables > 1 then
if type(tables) == "table" and table_name ~= nil then
for k,v in pairs(tables) do
if(v["_attr"]["table:name"]==table_name) then
return v, k
end
end
elseif type(tables) == "table" and table_name == nil then
return tables[1], 1
else
return tables
end
else
return tables
end
end
function getColumnCount(tbl)
local tbl = tbl or {}
local columns = tbl["table:table-column"] or {}
local x = 0
for _, c in pairs(columns) do
local rep = c["table:number-columns-repeated"] or 1
x = x + rep
end
return x
end
function loadNameRanges(root, tblname)
local tblname = tblname or ""
local t = {}
local ranges = root.root["office:document-content"]["office:body"]["office:spreadsheet"]["table:named-expressions"]
if not ranges then return {} end
ranges = ranges["table:named-range"] or {}
if #ranges == 0 then
ranges = {ranges}
end
for _,r in ipairs(ranges) do
local a = r["_attr"] or {}
local range = a["table:cell-range-address"] or ""
local name = a["table:name"]
if name and range:match("^"..tblname) then
range = range:gsub("^[^%.]*",""):gsub("[%$%.]","")
print("named range", name, range)
t[name] = range
end
end
return t
end
function tableValues(tbl,x1,y1,x2,y2)
local t= {}
local x1 = x1 or 1
local x2 = x2 or getColumnCount(tbl)
if type(tbl["table:table-row"])=="table" then
local rows = table_slice(tbl["table:table-row"],y1,y2)
for k,v in pairs(rows) do
-- In every sheet, there are two rows with no data at the bottom, we need to strip them
if(v["_attr"] and v["_attr"]["table:number-rows-repeated"] and tonumber(v["_attr"]["table:number-rows-repeated"])>10000) then break end
local j = {}
if #v["table:table-cell"] > 1 then
local r = table_slice(v["table:table-cell"],x1,x2)
for p,n in pairs(r) do
local attr = n["_attr"]
local cellValue = n["text:p"] or ""
table.insert(j,{value=cellValue,attr=attr})
end
else
local p = {value=v["table:table-cell"]["text:p"],attr=v["table:table-cell"]["_attr"]}
table.insert(j,p)
end
table.insert(t,j)
end
end
return t
end
function getRange(range)
local range = namedRanges[range] or range
local r = range:lower()
local function getNumber(s)
if s == "" or s == nil then return nil end
local f,ex = 0,0
for i in string.gmatch(s:reverse(),"(.)") do
f = f + (i:byte()-96) * 26 ^ ex
ex = ex + 1
end
return f
end
for x1,y1,x2,y2 in r:gmatch("(%a*)(%d*):*(%a*)(%d*)") do
return getNumber(x1),tonumber(y1),getNumber(x2),tonumber(y2)
--print(string.format("%s, %s, %s, %s",getNumber(x1),y1,getNumber(x2),y2))
end
end
function table_slice (values,i1,i2)
-- Function from http://snippets.luacode.org/snippets/Table_Slice_116
local res = {}
local n = #values
-- default values for range
i1 = i1 or 1
i2 = i2 or n
if i2 < 0 then
i2 = n + i2 + 1
elseif i2 > n then
i2 = n
end
if i1 < 1 or i1 > n then
return {}
end
local k = 1
for i = i1,i2 do
res[k] = values[i]
k = k + 1
end
return res
end
function interp(s, tab)
return (s:gsub('(-%b{})',
function(w)
s = w:sub(3, -2)
s = tonumber(s) or s
return tab[s] or w
end)
)
end
get_link = function(val)
local k = val["text:a"][1]
local href = val["text:a"]["_attr"]["xlink:href"]
return "\\odslink{"..href.."}{"..k.."}"
end
function escape(s)
return string.gsub(s, "([#%%$&])", "\\%1")
end
function get_cell(val, delim)
local val = val or ""
local typ = type(val)
if typ == "string" then
return escape(val)
elseif typ == "table" then
if val["text:a"] then
return get_link(val)
elseif val["text:span"] then
return get_cell(val["text:span"], delim)
elseif val["text:s"] then
-- return get_cell(val["text:s"], delim)
return table.concat(val, " ")
else
local t = {}
for _,v in ipairs(val) do
local c = get_cell(v, delim)
table.insert(t, c)
end
return table.concat(t,delim)
end
end
end
-- Interface for adding new rows to the spreadsheet
function newRow()
local p = {
pos = 0,
cells = {},
-- Generic function for inserting cell
addCell = function(self,val, attr,pos)
if pos then
table.insert(self.cells,pos,{["text:p"] = val, ["_attr"] = attr})
self.pos = pos
else
self.pos = self.pos + 1
table.insert(self.cells,self.pos,{["text:p"] = val, ["_attr"] = attr})
end
end,
addString = function(self,s,attr,pos)
local attr = attr or {}
attr["office:value-type"] = "string"
self:addCell(s,attr,pos)
end,
addFloat = function(self,i,attr,pos)
local attr = attr or {}
local s = tonumber(i) or 0
s = tostring(s)
attr["office:value-type"] = "float"
attr["office:value"] = s
self:addCell(s,attr,pos)
end,
findLastRow = function(self,sheet)
for i= #sheet["table:table-row"],1,-1 do
if sheet["table:table-row"][i]["_attr"]["table:number-rows-repeated"] then
return i
end
end
return #sheet["table:table-row"]+1
end,
insert = function(self, sheet, pos)
local t = {}
local pos = pos or self:findLastRow(sheet)
print("pos je: ",pos)
if sheet["table:table-column"]["_attr"] and sheet["table:table-column"]["_attr"]["table:number-columns-repeated"] then
table_columns = sheet["table:table-column"]["_attr"]["table:number-columns-repeated"]
else
table_columns = #sheet["table:table-column"]
end
for i=1, table_columns do
table.insert(t,self.cells[i] or {})
end
t = {["table:table-cell"]=t}
table.insert(sheet["table:table-row"],pos,t)
end
}
return p
end
-- function for updateing the archive. Depends on external zip utility
function updateZip(zipfile, updatefile)
local command = string.format("zip %s %s",zipfile, updatefile)
print ("Updating an ods file.\n" ..command .."\n Return code: ", os.execute(command))
end
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