Simple LaTeX presentation primitives (based on outer lexical syntax).

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/Thy/latex.ML	Tue Oct 05 15:33:35 1999 +0200
@@ -0,0 +1,88 @@
+(*  Title:      Pure/Thy/latex.ML
+    ID:         $Id$
+    Author:     Markus Wenzel, TU Muenchen
+
+Simple LaTeX presentation primitives (based on outer lexical syntax).
+*)
+
+signature LATEX =
+sig
+  val token_source: OuterLex.token list -> string
+  val theory_entry: string -> string
+end;
+
+structure Latex: LATEX =
+struct
+
+
+(* symbol output *)
+
+local
+
+val output_chr = fn
+  " " => "~" |
+  "\n" => "\\isanewline\n" |
+  "$" => "\\$" |
+  "&" => "\\&" |
+  "%" => "\\%" |
+  "#" => "\\#" |
+  "_" => "\\_" |
+  "{" => "{\\textbraceleft}" |
+  "}" => "{\\textbraceright}" |
+  "~" => "{\\textasciitilde}" |
+  "^" => "{\\textasciicircum}" |
+(*  "\"" => "{\\textquotedblleft}" |    (* FIXME !? *)*)
+  "\\" => "{\\textbackslash}" |
+(*  "|" => "{\\textbar}" |
+  "<" => "{\\textless}" |
+  ">" => "{\\textgreater}" |  *)
+  c => c;
+
+in
+
+(* FIXME replace \<forall> etc. *)
+val output_symbol = implode o map output_chr o explode;
+val output_symbols = map output_symbol;
+
+end;
+
+
+(* token output *)
+
+local
+
+structure T = OuterLex;
+
+fun output_tok tok =
+  let
+    val out = output_symbol;
+    val s = T.val_of tok;
+  in
+    if T.is_kind T.Command tok then "\\isacommand{" ^ out s ^ "}"
+    else if T.is_kind T.Keyword tok then "\\isakeyword{" ^ out s ^ "}"
+    else if T.is_kind T.String tok then out (quote s)
+    else if T.is_kind T.Verbatim tok then "\\isatext{" ^ s ^ "}"
+    else out s
+  end;
+
+(*adhoc tuning of tokens*)
+fun invisible_token tok =
+  T.is_kind T.Command tok andalso T.val_of tok mem_string ["text", "txt"] orelse
+  T.keyword_with (equal ";") tok orelse T.is_kind T.Comment tok;
+
+in
+
+val output_tokens = map output_tok o filter_out invisible_token;
+
+end;
+
+
+(* theory presentation *)
+
+fun token_source toks =
+  "\\begin{isabellesimple}\n" ^ implode (output_tokens toks) ^ "\\end{isabellesimple}\n";
+
+fun theory_entry name = "\\input{" ^ name ^ ".tex}\n";
+
+
+end;