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-- filename : l-utils.lua
-- comment : split off from luat-lib
-- author : Hans Hagen, PRAGMA-ADE, Hasselt NL
-- copyright: PRAGMA ADE / ConTeXt Development Team
-- license : see context related readme files
if not versions then versions = { } end versions['l-utils'] = 1.001
if not utils then utils = { } end
if not utils.merger then utils.merger = { } end
if not utils.lua then utils.lua = { } end
utils.merger.m_begin = "begin library merge"
utils.merger.m_end = "end library merge"
utils.merger.pattern =
"%c+" ..
"%-%-%s+" .. utils.merger.m_begin ..
"%c+(.-)%c+" ..
"%-%-%s+" .. utils.merger.m_end ..
"%c+"
function utils.merger._self_fake_()
return
"-- " .. "created merged file" .. "\n\n" ..
"-- " .. utils.merger.m_begin .. "\n\n" ..
"-- " .. utils.merger.m_end .. "\n\n"
end
function utils.report(...)
print(...)
end
function utils.merger._self_load_(name)
local f, data = io.open(name), ""
if f then
data = f:read("*all")
f:close()
end
return data or ""
end
function utils.merger._self_save_(name, data)
if data ~= "" then
local f = io.open(name,'w')
if f then
f:write(data)
f:close()
end
end
end
function utils.merger._self_swap_(data,code)
if data ~= "" then
return (data:gsub(utils.merger.pattern, function(s)
return "\n\n" .. "-- "..utils.merger.m_begin .. "\n" .. code .. "\n" .. "-- "..utils.merger.m_end .. "\n\n"
end, 1))
else
return ""
end
end
function utils.merger._self_libs_(libs,list)
local result, f = "", nil
if type(libs) == 'string' then libs = { libs } end
if type(list) == 'string' then list = { list } end
for _, lib in ipairs(libs) do
for _, pth in ipairs(list) do
local name = string.gsub(pth .. "/" .. lib,"\\","/")
f = io.open(name)
if f then
-- utils.report("merging library",name)
result = result .. "\n" .. f:read("*all") .. "\n"
f:close()
list = { pth } -- speed up the search
break
else
-- utils.report("no library",name)
end
end
end
return result or ""
end
function utils.merger.selfcreate(libs,list,target)
if target then
utils.merger._self_save_(
target,
utils.merger._self_swap_(
utils.merger._self_fake_(),
utils.merger._self_libs_(libs,list)
)
)
end
end
function utils.merger.selfmerge(name,libs,list,target)
utils.merger._self_save_(
target or name,
utils.merger._self_swap_(
utils.merger._self_load_(name),
utils.merger._self_libs_(libs,list)
)
)
end
function utils.merger.selfclean(name)
utils.merger._self_save_(
name,
utils.merger._self_swap_(
utils.merger._self_load_(name),
""
)
)
end
function utils.lua.compile(luafile, lucfile)
-- utils.report("compiling",luafile,"into",lucfile)
os.remove(lucfile)
local command = "-s -o " .. string.quote(lucfile) .. " " .. string.quote(luafile)
if os.execute("texluac " .. command) == 0 then
return true
elseif os.execute("luac " .. command) == 0 then
return true
else
return false
end
end
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