diff options
Diffstat (limited to 'tex/context/base/mkiv/syst-lua.lua')
| -rw-r--r-- | tex/context/base/mkiv/syst-lua.lua | 352 |
1 files changed, 183 insertions, 169 deletions
diff --git a/tex/context/base/mkiv/syst-lua.lua b/tex/context/base/mkiv/syst-lua.lua index d42ef946c..77960def7 100644 --- a/tex/context/base/mkiv/syst-lua.lua +++ b/tex/context/base/mkiv/syst-lua.lua @@ -204,194 +204,208 @@ local function unexpected(c) report("unexpected token %a",c) end -local function expression() - local w = 0 - local r = 1 - while true do - local t = get_next() - local n = get_command(t) - local c = cmd[n] - -- todo, helper: returns number - if c == "letter" then - w = w + 1 ; word[w] = utfchar(get_mode(t)) - else - if w > 0 then - local s = concat(word,"",1,w) - local d = dimenfactors[s] - if d then - r = r + 1 ; result[r] = "*" - r = r + 1 ; result[r] = 1/d - else - if xmath[s] then - r = r + 1 ; result[r] = "xmath." - elseif xcomplex[s] then - r = r + 1 ; result[r] = "xcomplex." +local expression + +if CONTEXTLMTXMODE == 0 then + + expression = function() + local w = 0 + local r = 1 + while true do + local t = get_next() + local n = get_command(t) + local c = cmd[n] + -- todo, helper: returns number + if c == "letter" then + w = w + 1 ; word[w] = utfchar(get_mode(t)) + else + if w > 0 then + local s = concat(word,"",1,w) + local d = dimenfactors[s] + if d then + r = r + 1 ; result[r] = "*" + r = r + 1 ; result[r] = 1/d + else + if xmath[s] then + r = r + 1 ; result[r] = "xmath." + elseif xcomplex[s] then + r = r + 1 ; result[r] = "xcomplex." + end + r = r + 1 ; result[r] = s end - r = r + 1 ; result[r] = s + w = 0 end - w = 0 - end - if c == "other_char" then - r = r + 1 ; result[r] = utfchar(get_mode(t)) - elseif c == "spacer" then - -- r = r + 1 ; result[r] = " " - elseif c == "relax" then - break - elseif c == "assign_int" then - r = r + 1 ; result[r] = getcount(get_index(t)) - elseif c == "assign_dimen" then - r = r + 1 ; result[r] = getdimen(get_index(t)) - elseif c == "assign_glue" then - r = r + 1 ; result[r] = getglue(get_index(t)) - elseif c == "assign_toks" then - r = r + 1 ; result[r] = gettoks(get_index(t)) - elseif c == "char_given" or c == "math_given" or c == "xmath_given" then - r = r + 1 ; result[r] = get_mode(t) - elseif c == "last_item" then - local n = get_csname(t) - if n then - local s = gettex(n) - if s then - r = r + 1 ; result[r] = s + if c == "other_char" then + r = r + 1 ; result[r] = utfchar(get_mode(t)) + elseif c == "spacer" then + -- r = r + 1 ; result[r] = " " + elseif c == "relax" then + break + elseif c == "assign_int" then + r = r + 1 ; result[r] = getcount(get_index(t)) + elseif c == "assign_dimen" then + r = r + 1 ; result[r] = getdimen(get_index(t)) + elseif c == "assign_glue" then + r = r + 1 ; result[r] = getglue(get_index(t)) + elseif c == "assign_toks" then + r = r + 1 ; result[r] = gettoks(get_index(t)) + elseif c == "char_given" or c == "math_given" or c == "xmath_given" then + r = r + 1 ; result[r] = get_mode(t) + elseif c == "last_item" then + local n = get_csname(t) + if n then + local s = gettex(n) + if s then + r = r + 1 ; result[r] = s + else + unexpected(c) + end + else + unexpected(c) + end + elseif c == "call" then + local n = get_csname(t) + if n then + local s = get_macro(n) + if s then + r = r + 1 ; result[r] = s + else + unexpected(c) + end else unexpected(c) end + elseif c == "the" or c == "convert" or c == "lua_expandable_call" then + put_next(t) + scan_token() -- expands else unexpected(c) end - elseif c == "call" then - local n = get_csname(t) - if n then - local s = get_macro(n) - if s then + end + end + local code = concat(result,"",1,r) + local func = load(code) + if type(func) == "function" then + context(func()) + else + report("invalid lua %a",code) + end + end + +else + + local get_cmdchrcs = tokens.get_cmdchrcs or token.get_cmdchrcs + + local letter_code = cmd.letter + local other_char_code = cmd.other_char + local spacer_code = cmd.spacer + local other_char_code = cmd.other_char + local relax_code = cmd.relax + local register_int_code = cmd.register_int + local internal_int_code = cmd.internal_int + local register_dimen_code = cmd.register_dimen + local internal_dimen_code = cmd.internal_dimen + local register_glue_code = cmd.register_glue + local internal_glue_code = cmd.internal_glue + local register_toks_code = cmd.register_toks + local internal_toks_code = cmd.internal_toks + local char_given_code = cmd.char_given + local math_given_code = cmd.math_given + local xmath_given_code = cmd.xmath_given + local some_item_code = cmd.some_item + local call_code = cmd.call + local the_code = cmd.the + local convert_code = cmd.convert + local lua_expandable_call_code = cmd.lua_expandable_call + + local function unexpected(c) + report("unexpected token %a",c) + end + + expression = function() + local w = 0 + local r = 1 + while true do + local t = get_next() + local n, i = get_cmdchrcs(t) + if n == letter_code then + w = w + 1 ; word[w] = utfchar(i) + else + if w > 0 then + -- we could use a metatable for all math, complex and factors + local s = concat(word,"",1,w) + local d = dimenfactors[s] + if d then + r = r + 1 ; result[r] = "*" + r = r + 1 ; result[r] = 1/d + else + if xmath[s] then + r = r + 1 ; result[r] = "xmath." + elseif xcomplex[s] then + r = r + 1 ; result[r] = "xcomplex." + end r = r + 1 ; result[r] = s + end + w = 0 + end + if n == other_char_code then + r = r + 1 ; result[r] = utfchar(i) + elseif n == spacer_code then + -- r = r + 1 ; result[r] = " " + elseif n == relax_code then + break + elseif n == register_int_code or n == internal_int_code then + r = r + 1 ; result[r] = getcount(i) + elseif n == register_dimen_code or n == internal_dimen_code then + r = r + 1 ; result[r] = getdimen(i) + elseif n == register_glue_code or n == n == register_dimen_code_glue_code then + r = r + 1 ; result[r] = getglue(i) + elseif n == register_toks_code or n == n == register_dimen_code_toks_code then + r = r + 1 ; result[r] = gettoks(i) + elseif n == char_given_code or n == math_given_code or n == xmath_given_code then + r = r + 1 ; result[r] = i + elseif n == some_item_code then + local n = get_csname(t) + if n then + local s = gettex(n) + if s then + r = r + 1 ; result[r] = s + else + unexpected(c) + end + else + unexpected(c) + end + elseif n == call_code then + local n = get_csname(t) + if n then + local s = get_macro(n) + if s then + r = r + 1 ; result[r] = s + else + unexpected(c) + end else unexpected(c) end + elseif n == the_code or n == convert_code or n == lua_expandable_call_code then + put_next(t) + scan_token() -- expands else unexpected(c) end - elseif c == "the" or c == "convert" or c == "lua_expandable_call" then - put_next(t) - scan_token() -- expands - else - unexpected(c) end end + local code = concat(result,"",1,r) + local func = load(code) + if type(func) == "function" then + context(func()) + else + report("invalid lua %a",code) + end end - local code = concat(result,"",1,r) - local func = load(code) - if type(func) == "function" then - context(func()) - else - report("invalid lua %a",code) - end -end --- local letter_code = cmd.letter --- local other_char_code = cmd.other_char --- local spacer_code = cmd.spacer --- local other_char_code = cmd.other_char --- local relax_code = cmd.relax --- local assign_int_code = cmd.assign_int --- local assign_dimen_code = cmd.assign_dimen --- local assign_glue_code = cmd.assign_glue --- local assign_toks_code = cmd.assign_toks --- local char_given_code = cmd.char_given --- local math_given_code = cmd.math_given --- local xmath_given_code = cmd.xmath_given --- local last_item_code = cmd.last_item --- local call_code = cmd.call --- local the_code = cmd.the --- local convert_code = cmd.convert --- local lua_expandable_call_code = cmd.lua_expandable_call --- --- local function unexpected(c) --- report("unexpected token %a",c) --- end --- --- local function expression() --- local w = 0 --- local r = 1 --- while true do --- local t = get_next() --- local n = get_command(t) --- if n == letter_code then --- w = w + 1 ; word[w] = utfchar(get_mode(t)) --- else --- if w > 0 then --- -- we could use a metatable for all math, complex and factors --- local s = concat(word,"",1,w) --- local d = dimenfactors[s] --- if d then --- r = r + 1 ; result[r] = "*" --- r = r + 1 ; result[r] = 1/d --- else --- if xmath[s] then --- r = r + 1 ; result[r] = "xmath." --- elseif xcomplex[s] then --- r = r + 1 ; result[r] = "xcomplex." --- end --- r = r + 1 ; result[r] = s --- end --- w = 0 --- end --- if n == other_char_code then --- r = r + 1 ; result[r] = utfchar(get_mode(t)) --- elseif n == spacer_code then --- -- r = r + 1 ; result[r] = " " --- elseif n == relax_code then --- break --- elseif n == assign_int_code then --- r = r + 1 ; result[r] = getcount(get_index(t)) --- elseif n == assign_dimen_code then --- r = r + 1 ; result[r] = getdimen(get_index(t)) --- elseif n == assign_glue_code then --- r = r + 1 ; result[r] = getglue(get_index(t)) --- elseif n == assign_toks_code then --- r = r + 1 ; result[r] = gettoks(get_index(t)) --- elseif n == char_given_code or n == math_given_code or n == xmath_given_code then --- r = r + 1 ; result[r] = get_mode(t) --- elseif n == last_item_code then --- local n = get_csname(t) --- if n then --- local s = gettex(n) --- if s then --- r = r + 1 ; result[r] = s --- else --- unexpected(c) --- end --- else --- unexpected(c) --- end --- elseif n == call_code then --- local n = get_csname(t) --- if n then --- local s = get_macro(n) --- if s then --- r = r + 1 ; result[r] = s --- else --- unexpected(c) --- end --- else --- unexpected(c) --- end --- elseif n == the_code or n == convert_code or n == lua_expandable_call_code then --- put_next(t) --- scan_token() -- expands --- else --- unexpected(c) --- end --- end --- end --- local code = concat(result,"",1,r) --- local func = load(code) --- if type(func) == "function" then --- context(func()) --- else --- report("invalid lua %a",code) --- end --- end +end implement { public = true, |