src/Pure/Thy/latex.ML
author wenzelm
Tue Aug 16 13:42:52 2005 +0200 (2005-08-16)
changeset 17081 e19963723262
parent 15801 d2f5ca3c048d
child 17169 1f12d55060bf
permissions -rw-r--r--
eliminated datatype token;
replaced output_tokens by separate output_XXX;
replaced flag_markup by markup_true/false;
added begin/end_delim, begin/end_tag;
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(*  Title:      Pure/Thy/latex.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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LaTeX presentation elements -- based on outer lexical syntax.
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*)
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signature LATEX =
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sig
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  val output_known_symbols: (string -> bool) * (string -> bool) ->
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    Symbol.symbol list -> string
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  val output_symbols: Symbol.symbol list -> string
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  val output_basic: OuterLex.token -> string
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  val output_markup: string -> string -> string
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  val output_markup_env: string -> string -> string
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  val output_verbatim: string -> string
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  val markup_true: string
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  val markup_false: string
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  val begin_delim: string -> string
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  val end_delim: string -> string
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  val begin_tag: string -> string
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  val end_tag: string -> string
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  val tex_trailer: string
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  val isabelle_file: string -> string -> string
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  val symbol_source: (string -> bool) * (string -> bool) ->
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    string -> Symbol.symbol list -> string
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  val theory_entry: string -> string
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  val modes: string list
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end;
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structure Latex: LATEX =
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struct
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(* symbol output *)
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local
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val output_chr = fn
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  " " => "\\ " |
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  "\n" => "\\isanewline\n" |
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  "!" => "{\\isacharbang}" |
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  "\"" => "{\\isachardoublequote}" |
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  "#" => "{\\isacharhash}" |
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  "$" => "{\\isachardollar}" |
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  "%" => "{\\isacharpercent}" |
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  "&" => "{\\isacharampersand}" |
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  "'" => "{\\isacharprime}" |
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  "(" => "{\\isacharparenleft}" |
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  ")" => "{\\isacharparenright}" |
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  "*" => "{\\isacharasterisk}" |
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  "+" => "{\\isacharplus}" |
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  "," => "{\\isacharcomma}" |
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  "-" => "{\\isacharminus}" |
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  "." => "{\\isachardot}" |
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  "/" => "{\\isacharslash}" |
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  ":" => "{\\isacharcolon}" |
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  ";" => "{\\isacharsemicolon}" |
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  "<" => "{\\isacharless}" |
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  "=" => "{\\isacharequal}" |
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  ">" => "{\\isachargreater}" |
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  "?" => "{\\isacharquery}" |
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  "@" => "{\\isacharat}" |
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  "[" => "{\\isacharbrackleft}" |
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  "\\" => "{\\isacharbackslash}" |
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  "]" => "{\\isacharbrackright}" |
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  "^" => "{\\isacharcircum}" |
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  "_" => "{\\isacharunderscore}" |
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  "`" => "{\\isacharbackquote}" |
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  "{" => "{\\isacharbraceleft}" |
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  "|" => "{\\isacharbar}" |
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  "}" => "{\\isacharbraceright}" |
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  "~" => "{\\isachartilde}" |
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  c => if Symbol.is_ascii_digit c then enclose "{\\isadigit{" "}}" c else c;
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val output_chrs = translate_string output_chr;
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fun output_known_sym (known_sym, known_ctrl) sym =
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  (case Symbol.decode sym of
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    Symbol.Char s => output_chr s
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  | Symbol.Sym s => if known_sym s then enclose "{\\isasym" "}" s else output_chrs sym
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  | Symbol.Ctrl s => if known_ctrl s then enclose "\\isactrl" " " s else output_chrs sym
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  | Symbol.Raw s => s);
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in
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val output_known_symbols = implode oo (map o output_known_sym);
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val output_symbols = output_known_symbols (K true, K true);
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val output_syms = output_symbols o Symbol.explode;
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end;
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(* token output *)
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structure T = OuterLex;
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val invisible_token = T.keyword_with (equal ";") orf T.is_kind T.Comment;
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fun output_basic tok =
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  let val s = T.val_of tok in
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    if invisible_token tok then ""
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    else if T.is_kind T.Command tok then
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      "\\isacommand{" ^ output_syms s ^ "}"
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    else if T.is_kind T.Keyword tok andalso Syntax.is_ascii_identifier s then
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      "\\isakeyword{" ^ output_syms s ^ "}"
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    else if T.is_kind T.String tok then output_syms (Library.quote s)
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    else if T.is_kind T.Verbatim tok then output_syms (enclose "{*" "*}" s)
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    else output_syms s
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  end;
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fun output_markup cmd txt = "%\n\\isamarkup" ^ cmd ^ "{" ^ Symbol.strip_blanks txt ^ "%\n}\n";
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fun output_markup_env cmd txt =
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  "%\n\\begin{isamarkup" ^ cmd ^ "}%\n" ^
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  Symbol.strip_blanks txt ^
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  "%\n\\end{isamarkup" ^ cmd ^ "}%\n";
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fun output_verbatim txt = "%\n" ^ Symbol.strip_blanks txt ^ "\n";
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val markup_true = "\\isamarkuptrue%\n";
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val markup_false = "\\isamarkupfalse%\n";
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val begin_delim = enclose "%\n\\isadelim" "\n";
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val end_delim = enclose "%\n\\endisadelim" "\n";
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val begin_tag = enclose "%\n\\isatag" "\n";
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fun end_tag tg = enclose "%\n\\endisatag" "\n" tg ^ enclose "{\\isafold" "}%\n" tg;
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(* theory presentation *)
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val tex_trailer =
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  "%%% Local Variables:\n\
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  \%%% mode: latex\n\
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  \%%% TeX-master: \"root\"\n\
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  \%%% End:\n";
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fun isabelle_file name txt =
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  "%\n\\begin{isabellebody}%\n\
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  \\\def\\isabellecontext{" ^ output_syms name ^ "}%\n" ^ txt ^
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  "\\end{isabellebody}%\n" ^ tex_trailer;
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fun symbol_source known name syms = isabelle_file name
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  ("\\isamarkupheader{" ^ output_known_symbols known (Symbol.explode name) ^ "}%\n" ^
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    output_known_symbols known syms);
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fun theory_entry name = "\\input{" ^ name ^ ".tex}\n\n";
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(* print mode *)
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val latexN = "latex";
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val modes = [latexN, Symbol.xsymbolsN, Symbol.symbolsN];
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fun latex_output str =
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  let val syms = Symbol.explode str
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  in (output_symbols syms, real (Symbol.length syms)) end;
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fun latex_indent "" = ""
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  | latex_indent s = enclose "\\isaindent{" "}" s;
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val _ = Output.add_mode latexN (latex_output, latex_indent o #1, Symbol.encode_raw);
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end;