
diff -r 6e2479089226 -r cecd7a941885 ProgTutorial/Recipes/Antiquotes.thy
--- a/ProgTutorial/Recipes/Antiquotes.thy	Tue May 14 16:59:53 2019 +0200
+++ b/ProgTutorial/Recipes/Antiquotes.thy	Tue May 14 17:10:47 2019 +0200
@@ -3,9 +3,9 @@
 imports "../Appendix"
 begin
 
-section {* Useful Document Antiquotations\label{rec:docantiquotations} *}
+section \<open>Useful Document Antiquotations\label{rec:docantiquotations}\<close>
 
-text {*
+text \<open>
   {\bf Problem:} 
   How to keep your ML-code inside a document synchronised with the actual code?\smallskip
 
@@ -14,11 +14,11 @@
   Document antiquotations can be used for ensuring consistent type-setting of
   various entities in a document. They can also be used for sophisticated
   \LaTeX-hacking. If you type on the Isabelle level
-*}
+\<close>
 
 print_antiquotations
 
-text {*
+text \<open>
   you obtain a list of all currently available document antiquotations and
   their options.  
 
@@ -29,7 +29,7 @@
   and also allows you to keep documents in sync with other code, for example
   Isabelle.
 
-  We first describe the antiquotation @{text "ML_checked"} with the syntax:
+  We first describe the antiquotation \<open>ML_checked\<close> with the syntax:
  
   @{text [display] "@{ML_checked \"a_piece_of_code\"}"}
 
@@ -38,12 +38,12 @@
   "ML_Context.eval_source_in"} in Line 7 below). The complete code of the
   document antiquotation is as follows:
 
-*}
+\<close>
 ML \<open>Input.pos_of\<close>
-ML%linenosgray{*fun ml_enclose bg en source =
-  ML_Lex.read bg @ ML_Lex.read_source false source @ ML_Lex.read en;*}
+ML%linenosgray\<open>fun ml_enclose bg en source =
+  ML_Lex.read bg @ ML_Lex.read_source false source @ ML_Lex.read en;\<close>
 
-ML%linenosgray{*fun ml_val code_txt = (ml_enclose "val _ = " "" code_txt)
+ML%linenosgray\<open>fun ml_val code_txt = (ml_enclose "val _ = " "" code_txt)
 
 fun output_ml ctxt code_txt =
 let
@@ -52,12 +52,12 @@
    Pretty.str (Input.source_content code_txt)
 end
 
-val ml_checked_setup = Thy_Output.antiquotation_pretty_source @{binding "ML_checked"} (Scan.lift Args.text_input) output_ml*}
+val ml_checked_setup = Thy_Output.antiquotation_pretty_source @{binding "ML_checked"} (Scan.lift Args.text_input) output_ml\<close>
 
-setup {* ml_checked_setup *}
+setup \<open>ml_checked_setup\<close>
 
 
-text {*
+text \<open>
   The parser @{ML "(Scan.lift Args.name)"} in Line 7 parses a string, in this
   case the code, and then calls the function @{ML output_ml}. As mentioned
   before, the parsed code is sent to the ML-compiler in Line 4 using the
@@ -69,8 +69,8 @@
   line in the output. Therefore the use of @{ML "(space_explode \"\\n\" txt)"
   for txt} which produces such a list according to linebreaks.  There are a
   number of options for antiquotations that are observed by the function 
-  @{ML "output" in Document_Antiquotation} when printing the code (including @{text "[display]"} 
-  and @{text "[quotes]"}). The function @{ML "antiquotation_raw" in Thy_Output} in 
+  @{ML "output" in Document_Antiquotation} when printing the code (including \<open>[display]\<close> 
+  and \<open>[quotes]\<close>). The function @{ML "antiquotation_raw" in Thy_Output} in 
   Line 7 sets up the new document antiquotation.
 
   \begin{readmore}
@@ -80,7 +80,7 @@
   Since we used the argument @{ML "Position.none"}, the compiler cannot give specific 
   information about the line number, in case an error is detected. We 
   can improve the code above slightly by writing 
-*}
+\<close>
 (* FIXME: remove
 ML%linenosgray{*fun output_ml ctxt (code_txt, pos) =
 let
@@ -100,12 +100,12 @@
 
 setup {* ml_checked_setup2 *}
 *)
-text {*
+text \<open>
   where in Lines 1 and 2 the positional information is properly treated. The
   parser @{ML Parse.position} encodes the positional information in the 
   result.
 
-  We can now write @{text "@{ML_checked2 \"2 + 3\"}"} in a document in order to
+  We can now write \<open>@{ML_checked2 "2 + 3"}\<close> in a document in order to
   obtain @{ML_checked "2 + 3"} and be sure that this code compiles until
   somebody changes the definition of addition.
 
@@ -119,18 +119,18 @@
   @{text [display] "@{ML_resp \"a_piece_of_code\" \"a_pattern\"}"}
   
   To add some convenience and also to deal with large outputs, the user can
-  give a partial specification by using ellipses. For example @{text "(\<dots>, \<dots>)"}
+  give a partial specification by using ellipses. For example \<open>(\<dots>, \<dots>)\<close>
   for specifying a pair.  In order to check consistency between the pattern
   and the output of the code, we have to change the ML-expression that is sent 
-  to the compiler: in @{text "ML_checked2"} we sent the expression @{text [quotes]
-  "val _ = a_piece_of_code"} to the compiler; now the wildcard @{text "_"}
+  to the compiler: in \<open>ML_checked2\<close> we sent the expression @{text [quotes]
+  "val _ = a_piece_of_code"} to the compiler; now the wildcard \<open>_\<close>
   must be be replaced by the given pattern. However, we have to remove all
   ellipses from it and replace them by @{text [quotes] "_"}. The following 
   function will do this:
-*}
+\<close>
 
-ML%linenosgray{*fun ml_pat pat code =
-  ML_Lex.read "val" @ ML_Lex.read_source false pat @ ML_Lex.read " = " @ ML_Lex.read_source false code*}
+ML%linenosgray\<open>fun ml_pat pat code =
+  ML_Lex.read "val" @ ML_Lex.read_source false pat @ ML_Lex.read " = " @ ML_Lex.read_source false code\<close>
 
 (*
 ML %grayML{*fun ml_pat code_txt pat =
@@ -140,16 +140,16 @@
   ml_enclose ("val " ^ pat' ^ " = ") "" code_txt 
 end*}
 *)
-text {* 
+text \<open>
   Next we add a response indicator to the result using:
-*}
+\<close>
 
 
-ML %grayML{*fun add_resp pat = map (fn s => "> " ^ s) pat*}
+ML %grayML\<open>fun add_resp pat = map (fn s => "> " ^ s) pat\<close>
 
-text {* 
-  The rest of the code of @{text "ML_resp"} is: 
-*}
+text \<open>
+  The rest of the code of \<open>ML_resp\<close> is: 
+\<close>
 
 ML %linenosgray\<open>
 fun output_ml_resp ctxt (code_txt, pat) =
@@ -184,11 +184,11 @@
           (Scan.lift (Parse.position (Args.text_input -- Args.text_input))) 
              output_ml_resp*}
 *)
-setup {* ml_response_setup *}
+setup \<open>ml_response_setup\<close>
 
 (* FIXME *)
-text {* 
-  In comparison with @{text "ML_checked"}, we only changed the line about 
+text \<open>
+  In comparison with \<open>ML_checked\<close>, we only changed the line about 
   the compiler (Line~2), the lines about
   the output (Lines 4 to 7) and the parser in the setup (Line 11). Now 
   you can write
@@ -212,5 +212,5 @@
   pattern can only be given for values that can be constructed. This excludes
   values that are abstract datatypes, like @{ML_type thm}s and @{ML_type cterm}s.
 
-*}
+\<close>
 end




