58 lines
2.0 KiB
OCaml
58 lines
2.0 KiB
OCaml
(* vim: set sw=8 ts=8 et: *)
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exception LexerException of string
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(* *)
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let lexer_token_safe lexbuf =
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try Lexer.token lexbuf
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with Failure s -> raise (LexerException s)
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(* *)
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let render tmppath finalpath tree backcolor =
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let outtex = Util.mapjoin Texutil.render_tex tree in
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let md5 = Digest.to_hex (Digest.string outtex) in
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begin
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let mathml = Mathml.render tree
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and html = Html.render tree
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in print_string (match (html,!Html.conservativeness,mathml) with
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None,_,None -> "+" ^ md5
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| Some h,Html.CONSERVATIVE,None -> "c" ^ md5 ^ h
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| Some h,Html.MODERATE,None -> "m" ^ md5 ^ h
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| Some h,Html.LIBERAL,None -> "l" ^ md5 ^ h
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| Some h,Html.CONSERVATIVE,Some m -> "C" ^ md5 ^ h ^ "\000" ^ m
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| Some h,Html.MODERATE,Some m -> "M" ^ md5 ^ h ^ "\000" ^ m
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| Some h,Html.LIBERAL,Some m -> "L" ^ md5 ^ h ^ "\000" ^ m
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| None,_,Some m -> "X" ^ md5 ^ m
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);
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Render.render tmppath finalpath outtex md5 backcolor
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end
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(* Arguments:
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* 1st : temporary directory to use as scratch space
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* 2nd : target path
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* 3rd : LaTeX input
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* 4th : encoding (Default: UTF-8)
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* 5th : color (Default: rgb 1.0 1.0 1.0)
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*
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* Output one character:
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* S : Parsing error
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* E : Lexer exception raised
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* F : TeX function not recognized
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* - : Generic/Default failure code. Might be an invalid argument,
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* output file already exist, a problem with an external
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* command ...
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* *)
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let _ =
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Texutil.set_encoding (try Sys.argv.(4) with _ -> "UTF-8");
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try render Sys.argv.(1) Sys.argv.(2) (
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Parser.tex_expr lexer_token_safe (
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Lexing.from_string Sys.argv.(3))
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) (try Sys.argv.(5) with _ -> "rgb 1.0 1.0 1.0")
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with Parsing.Parse_error -> print_string "S"
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| LexerException _ -> print_string "E"
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| Texutil.Illegal_tex_function s -> print_string ("F" ^ s)
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| Util.FileAlreadyExists -> print_string "-"
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| Invalid_argument _ -> print_string "-"
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| Failure _ -> print_string "-"
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| Render.ExternalCommandFailure s -> ()
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| _ -> print_string "-"
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