mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Math
synced 2024-11-13 17:56:59 +00:00
4c9dc2f08e
texvc had several tasks in the past: 1 checking the input 2 convert MediaWiki custom syntax to standard LaTeX 3 run LaTeX 4 convert dvi2png This change provides a simplified version that performs only steps 1+2. This is required to avoid security problems with tools like MathJax, especially if these tools are run at the server-side. Bug: 54624 Change-Id: I1650e6ec2ccefff6335fbc36bbe8ca8f59db0faa
39 lines
1 KiB
OCaml
39 lines
1 KiB
OCaml
(* vim: set sw=8 ts=8 et: *)
|
|
exception LexerException of string
|
|
|
|
(* *)
|
|
let lexer_token_safe lexbuf =
|
|
try Lexer.token lexbuf
|
|
with Failure s -> raise (LexerException s)
|
|
|
|
(* *)
|
|
let render tree =
|
|
let outtex = Util.mapjoin Texutil.render_tex tree in
|
|
begin
|
|
print_string ("+" ^ outtex);
|
|
end
|
|
|
|
(* TODO: document
|
|
* Arguments:
|
|
* 1st : tex input string
|
|
*
|
|
* Output one character:
|
|
* E : Lexer exception raised
|
|
* F : TeX function not recognized
|
|
* - : Generic/Default failure code. Might be an invalid argument,
|
|
* S : Parsing error
|
|
* output file already exist, a problem with an external
|
|
* command ...
|
|
*)
|
|
let _ =
|
|
try render (
|
|
Parser.tex_expr lexer_token_safe (
|
|
Lexing.from_string Sys.argv.(1))
|
|
)
|
|
with Parsing.Parse_error -> print_string "S"
|
|
| LexerException _ -> print_string "E"
|
|
| Texutil.Illegal_tex_function s -> print_string ("F" ^ s)
|
|
| Invalid_argument _ -> print_string "-"
|
|
| Failure _ -> print_string "-"
|
|
| _ -> print_string "-"
|