
diff -r 9ec4482c9201 -r f5d79aeffd81 doc-src/IsarRef/Thy/Outer_Syntax.thy
--- a/doc-src/IsarRef/Thy/Outer_Syntax.thy	Thu Nov 13 21:45:40 2008 +0100
+++ b/doc-src/IsarRef/Thy/Outer_Syntax.thy	Thu Nov 13 21:48:19 2008 +0100
@@ -307,117 +307,6 @@
 *}
 
 
-subsection {* Mixfix annotations *}
-
-text {*
-  Mixfix annotations specify concrete \emph{inner} syntax of Isabelle
-  types and terms.  Some commands such as @{command "types"} (see
-  \secref{sec:types-pure}) admit infixes only, while @{command
-  "consts"} (see \secref{sec:consts}) and @{command "syntax"} (see
-  \secref{sec:syn-trans}) support the full range of general mixfixes
-  and binders.
-
-  \indexouternonterm{infix}\indexouternonterm{mixfix}\indexouternonterm{structmixfix}
-  \begin{rail}
-    infix: '(' ('infix' | 'infixl' | 'infixr') string nat ')'
-    ;
-    mixfix: infix | '(' string prios? nat? ')' | '(' 'binder' string prios? nat ')'
-    ;
-    structmixfix: mixfix | '(' 'structure' ')'
-    ;
-
-    prios: '[' (nat + ',') ']'
-    ;
-  \end{rail}
-
-  Here the \railtok{string} specifications refer to the actual mixfix
-  template, which may include literal text, spacing, blocks, and
-  arguments (denoted by ``@{text _}''); the special symbol
-  ``@{verbatim "\<index>"}'' (printed as ``@{text "\<index>"}'') represents an index
-  argument that specifies an implicit structure reference (see also
-  \secref{sec:locale}).  Infix and binder declarations provide common
-  abbreviations for particular mixfix declarations.  So in practice,
-  mixfix templates mostly degenerate to literal text for concrete
-  syntax, such as ``@{verbatim "++"}'' for an infix symbol.
-
-  \medskip In full generality, mixfix declarations work as follows.
-  Suppose a constant @{text "c :: \<tau>\<^sub>1 \<Rightarrow> \<dots> \<tau>\<^sub>n \<Rightarrow> \<tau>"} is
-  annotated by @{text "(mixfix [p\<^sub>1, \<dots>, p\<^sub>n] p)"}, where @{text
-  "mixfix"} is a string @{text "d\<^sub>0 _ d\<^sub>1 _ \<dots> _ d\<^sub>n"} consisting of
-  delimiters that surround argument positions as indicated by
-  underscores.
-
-  Altogether this determines a production for a context-free priority
-  grammar, where for each argument @{text "i"} the syntactic category
-  is determined by @{text "\<tau>\<^sub>i"} (with priority @{text "p\<^sub>i"}), and
-  the result category is determined from @{text "\<tau>"} (with
-  priority @{text "p"}).  Priority specifications are optional, with
-  default 0 for arguments and 1000 for the result.
-
-  Since @{text "\<tau>"} may be again a function type, the constant
-  type scheme may have more argument positions than the mixfix
-  pattern.  Printing a nested application @{text "c t\<^sub>1 \<dots> t\<^sub>m"} for
-  @{text "m > n"} works by attaching concrete notation only to the
-  innermost part, essentially by printing @{text "(c t\<^sub>1 \<dots> t\<^sub>n) \<dots> t\<^sub>m"}
-  instead.  If a term has fewer arguments than specified in the mixfix
-  template, the concrete syntax is ignored.
-
-  \medskip A mixfix template may also contain additional directives
-  for pretty printing, notably spaces, blocks, and breaks.  The
-  general template format is a sequence over any of the following
-  entities.
-
-  \begin{itemize}
-
-  \item @{text "\<^bold>d"} is a delimiter, namely a non-empty
-  sequence of characters other than the special characters @{text "'"}
-  (single quote), @{text "_"} (underscore), @{text "\<index>"} (index
-  symbol), @{text "/"} (slash), @{text "("} and @{text ")"}
-  (parentheses).
-
-  A single quote escapes the special meaning of these meta-characters,
-  producing a literal version of the following character, unless that
-  is a blank.  A single quote followed by a blank separates
-  delimiters, without affecting printing, but input tokens may have
-  additional white space here.
-
-  \item @{text "_"} is an argument position, which stands for a
-  certain syntactic category in the underlying grammar.
-
-  \item @{text "\<index>"} is an indexed argument position; this is
-  the place where implicit structure arguments can be attached.
-
-  \item @{text "\<^bold>s"} is a non-empty sequence of spaces for
-  printing.  This and the following specifications do not affect
-  parsing at all.
-
-  \item @{text "(\<^bold>n"} opens a pretty printing block.  The
-  optional number specifies how much indentation to add when a line
-  break occurs within the block.  If the parenthesis is not followed
-  by digits, the indentation defaults to 0.  A block specified via
-  @{text "(00"} is unbreakable.
-
-  \item @{text ")"} closes a pretty printing block.
-
-  \item @{text "//"} forces a line break.
-
-  \item @{text "/\<^bold>s"} allows a line break.  Here @{text
-  "\<^bold>s"} stands for the string of spaces (zero or more) right
-  after the slash.  These spaces are printed if the break is
-  \emph{not} taken.
-
-  \end{itemize}
-
-  For example, the template @{text "(_ +/ _)"} specifies an infix
-  operator.  There are two argument positions; the delimiter @{text
-  "+"} is preceded by a space and followed by a space or line break;
-  the entire phrase is a pretty printing block.
-
-  The general idea of pretty printing with blocks and breaks is also
-  described in \cite{paulson-ml2}.
-*}
-
-
 subsection {* Attributes and theorems \label{sec:syn-att} *}
 
 text {* Attributes have their own ``semi-inner'' syntax, in the sense




