* Update NoLocalSettings.php for the new installer. Stop advising users to move Local...

[lhc/web/wiklou.git] / math / texutil.ml

diff --git a/math/texutil.ml b/math/texutil.ml
index f9f4f9a..cc7f48f 100644 (file)
--- a/math/texutil.ml
+++ b/math/texutil.ml
@@ -1,3 +1,4 @@
+(* vim: set sw=8 ts=8 et: *)
 open Parser
 open Render_info
 open Tex
@@ -10,6 +11,7 @@ let tex_part = function
   | MHTMLABLEC (_,t,_,_,_) -> t
   | HTMLABLE_BIG (t,_) -> t
   | TEX_ONLY t -> t
+
 let rec render_tex = function
     TEX_FQ (a,b,c) -> (render_tex a) ^ "_{" ^ (render_tex  b) ^ "}^{" ^ (render_tex  c) ^ "}"
   | TEX_DQ (a,b) -> (render_tex a) ^ "_{" ^ (render_tex  b) ^ "}"
@@ -38,28 +40,40 @@ let rec render_tex = function
 (* Dynamic loading*)
 type encoding_t = LATIN1 | LATIN2 | UTF8
 
+(* module properties *)
 let modules_ams = ref false
 let modules_nonascii = ref false
 let modules_encoding = ref UTF8
 let modules_color = ref false
 
+(* wrappers to easily set / reset module properties *)
 let tex_use_ams ()     = modules_ams := true
 let tex_use_nonascii () = modules_nonascii := true
 let tex_use_color ()  = modules_color := true
-let tex_mod_reset ()   = (modules_ams := false; modules_nonascii := false; modules_encoding := UTF8; modules_color := false)
+let tex_mod_reset ()   = (
+        modules_ams := false;
+        modules_nonascii := false;
+        modules_encoding := UTF8;
+        modules_color := false
+        )
 
+(* Return TeX fragment for one of the encodings in (UTF8,LATIN1,LATIN2) *)
 let get_encoding = function
     UTF8 -> "\\usepackage{ucs}\n\\usepackage[utf8]{inputenc}\n"
   | LATIN1 -> "\\usepackage[latin1]{inputenc}\n"
   | LATIN2 -> "\\usepackage[latin2]{inputenc}\n"
 
+(* TeX fragment inserted before the output *)
 let get_preface ()  = "\\nonstopmode\n\\documentclass[12pt]{article}\n" ^
               (if !modules_nonascii then get_encoding !modules_encoding else "") ^
               (if !modules_ams then "\\usepackage{amsmath}\n\\usepackage{amsfonts}\n\\usepackage{amssymb}\n" else "") ^
               (if !modules_color then "\\usepackage[dvips,usenames]{color}\n" else "") ^
               "\\usepackage{cancel}\n\\pagestyle{empty}\n\\begin{document}\n$$\n"
+
+(* TeX fragment appended after the content *)
 let get_footer  ()  = "\n$$\n\\end{document}\n"
 
+(* Default to UTF8 *)
 let set_encoding = function
     "ISO-8859-1" -> modules_encoding := LATIN1
   | "iso-8859-1" -> modules_encoding := LATIN1
@@ -409,6 +423,10 @@ let find = function
     | "\\mod"              -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UFH,"\\mod ", "mod")))
     | "\\Diamond"          -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\Diamond ", "◊")))
     | "\\dotsb"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\dotsb ", "⋅⋅⋅")))
+    | "\\dotsc"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\dotsc ", "...")))
+    | "\\dotsi"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\dotsi ", "⋅⋅⋅")))
+    | "\\dotsm"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\dotsm ", "⋅⋅⋅")))
+    | "\\dotso"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UF, "\\dotso ", "...")))
     | "\\reals"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UFH,"\\mathbb{R}", "<b>R</b>")))
     | "\\Reals"            -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UFH,"\\mathbb{R}", "<b>R</b>")))
     | "\\R"                -> (tex_use_ams (); LITERAL (HTMLABLE (FONT_UFH,"\\mathbb{R}", "<b>R</b>")))
@@ -508,12 +526,15 @@ let find = function
     | "\\over"             -> FUN_INFIXh ("\\over ", fun num den -> Html.html_render num, "<hr style=\"{background: black}\"/>", Html.html_render den)
     | "\\sqrt"             -> FUN_AR1 "\\sqrt "
     | "\\cancel"           -> FUN_AR1 "\\cancel "
+    | "\\bcancel"           -> FUN_AR1 "\\bcancel "
+    | "\\xcancel"           -> FUN_AR1 "\\xcancel "
     | "\\cancelto"         -> FUN_AR2 "\\cancelto "
     | "\\pmod"             -> FUN_AR1hl ("\\pmod ", ("(mod ", ")"))
     | "\\bmod"             -> FUN_AR1hl ("\\bmod ", ("mod ", ""))
     | "\\emph"             -> FUN_AR1 "\\emph "
     | "\\texttt"           -> FUN_AR1 "\\texttt "
     | "\\textbf"           -> FUN_AR1 "\\textbf "
+    | "\\textsf"           -> FUN_AR1 "\\textsf "
     | "\\textit"           -> FUN_AR1hf ("\\textit ", FONTFORCE_IT)
     | "\\textrm"           -> FUN_AR1hf ("\\textrm ", FONTFORCE_RM)
     | "\\rm"               -> DECLh ("\\rm ", FONTFORCE_RM)
@@ -726,6 +747,7 @@ let find = function
     | "\\mathsf"           -> (tex_use_ams (); FUN_AR1 "\\mathsf ")
     | "\\mathcal"          -> (tex_use_ams (); FUN_AR1 "\\mathcal ")
     | "\\mathbb"           -> (tex_use_ams (); FUN_AR1 "\\mathbb ")
+    | "\\mathtt"           -> (tex_use_ams (); FUN_AR1 "\\mathtt ")
     | "\\mathfrak"         -> (tex_use_ams (); FUN_AR1 "\\mathfrak ")
     | "\\operatorname"     -> (tex_use_ams (); FUN_AR1 "\\operatorname ")
     | "\\text"             -> raise (Failure "malformatted \\text")