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Diffstat (limited to 'scripts/context/lua/texlua.lua')
| -rw-r--r-- | scripts/context/lua/texlua.lua | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/scripts/context/lua/texlua.lua b/scripts/context/lua/texlua.lua new file mode 100644 index 000000000..5c0524a56 --- /dev/null +++ b/scripts/context/lua/texlua.lua @@ -0,0 +1,141 @@ +-- version = 1.000, +-- comment = "companion to luametatex", +-- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", +-- copyright = "PRAGMA ADE / ConTeXt Development Team", +-- license = "see context related readme files" + +-- If you copy or link 'luametatex' to 'texlua' and put this script in the same path +-- we have a more pure Lua runner (as with luatex and texlua). + +-- todo: error trace +-- todo: protect these locals + +local texlua_load = load +local texlua_loadfile = loadfile +local texlua_type = type +local texlua_xpcall = xpcall +local texlua_find = string.find +local texlua_dump = string.dump +local texlua_open = io.open +local texlua_print = print +local texlua_show = luac.print + +function texlua_inspect(v) + if texlua_type(v) == "function" then + local ok, str = texlua_xpcall(texlua_dump,function() end,v) + if ok then + v = str + end + end + if type(v) == "string" then + texlua_show(v,true) + else + texlua_print(v) + end +end + +local function main_execute(str,loader) + if str and str ~= "" then + local str = loader(str) + if texlua_type(str) == "function" then + str() + end + end +end + +local function main_compile(str,loader,out,strip) + if str and str ~= "" then + local str = loader(str) + if texlua_type(str) == "function" then + str = texlua_dump(str,strip) + if type(out) == "string" and out ~= "" then + local f = texlua_open(out,"wb") + if f then + f:write(str) + f:close() + end + elseif out == true then + texlua_inspect(str) + else + texlua_print(str) + end + end + end +end + +local function main_help() + texlua_print("LuaMetaTeX in Lua mode:") + texlua_print("") + texlua_print("-o 'filename' output filename") + texlua_print("-e 'string' execute loaded string") + texlua_print("-f 'filename' execute loaded file") + texlua_print("-d 'string' dump bytecode of loaded string") + texlua_print("-c 'filename' dump bytecode of loaded file") + texlua_print("-i 'string' list bytecode of loaded string") + texlua_print("-l 'filename' list bytecode of loaded file") + texlua_print("-s strip byte code") + texlua_print(" 'filename' execute loaded file") +end + +local function main() + local i = 1 + local o = "" + local s = false + while true do + local option = arg[i] or "" + if option == "" then + if i == 1 then + main_help() + end + break + elseif option == "-e" then + i = i + 1 + main_execute(arg[i],texlua_load) + o = "" + s = false + elseif option == "-f" then + i = i + 1 + main_execute(arg[i],texlua_loadfile) + o = "" + s = false + elseif option == "-d" then + i = i + 1 + main_compile(arg[i],texlua_load,o,s) + o = "" + s = false + elseif option == "-c" then + i = i + 1 + main_compile(arg[i],texlua_loadfile,o,s) + o = "" + s = false + elseif option == "-i" then + i = i + 1 + main_compile(arg[i],texlua_load,true) + o = "" + s = false + elseif option == "-l" then + i = i + 1 + main_compile(arg[i],texlua_loadfile,true) + o = "" + s = false + elseif option == "-s" then + s = true + elseif option == "-o" then + i = i + 1 + o = arg[i] or "" + if texlua_find(o,"^%-") then + help() + break + end + elseif not texlua_find(option,"^%-") then + main_execute(option,texlua_loadfile) + break + else + main_help() + break + end + i = i + 1 + end +end + +main() |