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module(..., package.seeall)
function parseconfigfile(file)
file = file or ""
local retval = {commented={}}
local linenum=0
for line in string.gmatch(file, "([^\n]*)\n?") do
linenum=linenum+1
if not string.match(line, "^[%s#]*$") then
local linetable = {linenum=linenum, line=line}
if string.match(line, "^%s*#") then
table.insert(retval.commented, linetable)
line = string.match(line, "^%s*#(.*)")
else
table.insert(retval, linetable)
end
-- Iterate through each word, being careful about quoted strings and comments
local offset = 1
while string.find(line, "%S+", offset) do
local word = string.match(line, "%S+", offset)
local endword = select(2, string.find(line, "%S+", offset))
if string.find(word, "^#") then
break
elseif string.find(word, "^\"") then
endword = select(2, string.find(line, "\"[^\"]*\"", offset))
word = string.sub(line, string.find(line, "\"", offset), endword)
end
table.insert(linetable, word)
offset = endword + 1
end
end
end
return retval
end
-- Removes the linenum line from file and replaces it with line.
-- Do nothing if doesn't exist
function replaceline(file, linenum, line)
-- Split the file to remove the line
local startchar, endchar = string.match(file, "^" .. string.rep("[^\n]*\n", linenum-1) .. "()[^\n]*\n?()")
if startchar and endchar then
local lines = {}
lines[1] = string.sub(file, 1, startchar-1)
lines[2] = string.sub(file, endchar, -1)
if line then
table.insert(lines, 2, line .. "\n")
end
file = table.concat(lines)
end
return file
end
-- Inserts the line into the file after the linenum (or at the end)
function insertline(file, linenum, line)
-- Split the file to remove the line
local startchar = string.match(file, "^" .. string.rep("[^\n]*\n", linenum) .. "()")
local lines = {}
if startchar then
lines[1] = string.sub(file, 1, startchar-1)
lines[2] = string.sub(file, startchar, -1)
else
lines[1] = file
end
if line then
table.insert(lines, 2, line .. "\n")
end
file = table.concat(lines)
return file
end
function getline(file, linenum)
-- Split the file to remove the line
local startchar, endchar = string.match(file, "^" .. string.rep("[^\n]*\n", linenum-1) .. "()[^\n]*()")
local line
if startchar and endchar then
line = string.sub(file, startchar, endchar-1)
end
return line
end
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