--- a/doc-src/IsarRef/Thy/document/Spec.tex Sat Mar 24 20:24:16 2012 +0100
+++ b/doc-src/IsarRef/Thy/document/Spec.tex Mon Mar 26 15:38:09 2012 +0200
@@ -72,18 +72,42 @@
\rail@begin{4}{}
\rail@term{\hyperlink{command.theory}{\mbox{\isa{\isacommand{theory}}}}}[]
\rail@nont{\hyperlink{syntax.name}{\mbox{\isa{name}}}}[]
+\rail@nont{\isa{imports}}[]
\rail@cr{2}
-\rail@term{\isa{\isakeyword{imports}}}[]
-\rail@plus
-\rail@nont{\hyperlink{syntax.name}{\mbox{\isa{name}}}}[]
-\rail@nextplus{3}
-\rail@endplus
+\rail@bar
+\rail@nextbar{3}
+\rail@nont{\isa{keywords}}[]
+\rail@endbar
\rail@bar
\rail@nextbar{3}
\rail@nont{\isa{uses}}[]
\rail@endbar
\rail@term{\isa{\isakeyword{begin}}}[]
\rail@end
+\rail@begin{2}{\isa{imports}}
+\rail@term{\isa{\isakeyword{imports}}}[]
+\rail@plus
+\rail@nont{\hyperlink{syntax.name}{\mbox{\isa{name}}}}[]
+\rail@nextplus{1}
+\rail@endplus
+\rail@end
+\rail@begin{3}{\isa{keywords}}
+\rail@term{\isa{\isakeyword{keywords}}}[]
+\rail@plus
+\rail@plus
+\rail@nont{\hyperlink{syntax.string}{\mbox{\isa{string}}}}[]
+\rail@nextplus{1}
+\rail@endplus
+\rail@bar
+\rail@nextbar{1}
+\rail@term{\isa{{\isaliteral{3A}{\isacharcolon}}{\isaliteral{3A}{\isacharcolon}}}}[]
+\rail@nont{\hyperlink{syntax.name}{\mbox{\isa{name}}}}[]
+\rail@nont{\hyperlink{syntax.tags}{\mbox{\isa{tags}}}}[]
+\rail@endbar
+\rail@nextplus{2}
+\rail@cterm{\isa{\isakeyword{and}}}[]
+\rail@endplus
+\rail@end
\rail@begin{3}{\isa{uses}}
\rail@term{\isa{\isakeyword{uses}}}[]
\rail@plus
@@ -102,17 +126,27 @@
\item \hyperlink{command.theory}{\mbox{\isa{\isacommand{theory}}}}~\isa{{\isaliteral{22}{\isachardoublequote}}A\ {\isaliteral{5C3C494D504F5254533E}{\isasymIMPORTS}}\ B\isaliteral{5C3C5E7375623E}{}\isactrlsub {\isadigit{1}}\ {\isaliteral{5C3C646F74733E}{\isasymdots}}\ B\isaliteral{5C3C5E7375623E}{}\isactrlsub n\ {\isaliteral{5C3C424547494E3E}{\isasymBEGIN}}{\isaliteral{22}{\isachardoublequote}}}
starts a new theory \isa{A} based on the merge of existing
- theories \isa{{\isaliteral{22}{\isachardoublequote}}B\isaliteral{5C3C5E7375623E}{}\isactrlsub {\isadigit{1}}\ {\isaliteral{5C3C646F74733E}{\isasymdots}}\ B\isaliteral{5C3C5E7375623E}{}\isactrlsub n{\isaliteral{22}{\isachardoublequote}}}.
-
- Due to the possibility to import more than one ancestor, the
- resulting theory structure of an Isabelle session forms a directed
- acyclic graph (DAG). Isabelle's theory loader ensures that the
- sources contributing to the development graph are always up-to-date:
- changed files are automatically reloaded whenever a theory header
- specification is processed.
+ theories \isa{{\isaliteral{22}{\isachardoublequote}}B\isaliteral{5C3C5E7375623E}{}\isactrlsub {\isadigit{1}}\ {\isaliteral{5C3C646F74733E}{\isasymdots}}\ B\isaliteral{5C3C5E7375623E}{}\isactrlsub n{\isaliteral{22}{\isachardoublequote}}}. Due to the possibility to import more
+ than one ancestor, the resulting theory structure of an Isabelle
+ session forms a directed acyclic graph (DAG). Isabelle takes care
+ that sources contributing to the development graph are always
+ up-to-date: changed files are automatically rechecked whenever a
+ theory header specification is processed.
+
+ The optional \indexdef{}{keyword}{keywords}\hypertarget{keyword.keywords}{\hyperlink{keyword.keywords}{\mbox{\isa{\isakeyword{keywords}}}}} specification declares outer
+ syntax (\chref{ch:outer-syntax}) that is introduced in this theory
+ later on (rare in end-user applications). Both minor keywords and
+ major keywords of the Isar command language need to be specified, in
+ order to make parsing of proof documents work properly. Command
+ keywords need to be classified according to their structural role in
+ the formal text. Examples may be seen in Isabelle/HOL sources
+ itself, such as \hyperlink{keyword.keywords}{\mbox{\isa{\isakeyword{keywords}}}}~\verb|"typedef"|
+ \isa{{\isaliteral{22}{\isachardoublequote}}{\isaliteral{3A}{\isacharcolon}}{\isaliteral{3A}{\isacharcolon}}\ thy{\isaliteral{5F}{\isacharunderscore}}goal{\isaliteral{22}{\isachardoublequote}}} or \hyperlink{keyword.keywords}{\mbox{\isa{\isakeyword{keywords}}}}~\verb|"datatype"| \isa{{\isaliteral{22}{\isachardoublequote}}{\isaliteral{3A}{\isacharcolon}}{\isaliteral{3A}{\isacharcolon}}\ thy{\isaliteral{5F}{\isacharunderscore}}decl{\isaliteral{22}{\isachardoublequote}}} for theory-level declarations
+ with and without proof, respectively. Additional \hyperlink{syntax.tags}{\mbox{\isa{tags}}}
+ provide defaults for document preparation (\secref{sec:tags}).
The optional \indexdef{}{keyword}{uses}\hypertarget{keyword.uses}{\hyperlink{keyword.uses}{\mbox{\isa{\isakeyword{uses}}}}} specification declares additional
- dependencies on extra files (usually ML sources). Files will be
+ dependencies on external files (notably ML sources). Files will be
loaded immediately (as ML), unless the name is parenthesized. The
latter case records a dependency that needs to be resolved later in
the text, usually via explicit \indexref{}{command}{use}\hyperlink{command.use}{\mbox{\isa{\isacommand{use}}}} for ML files;
@@ -120,8 +154,9 @@
corresponding tools or packages.
\item \hyperlink{command.global.end}{\mbox{\isa{\isacommand{end}}}} concludes the current theory
- definition. Note that local theory targets involve a local
- \hyperlink{command.local.end}{\mbox{\isa{\isacommand{end}}}}, which is clear from the nesting.
+ definition. Note that some other commands, e.g.\ local theory
+ targets \hyperlink{command.locale}{\mbox{\isa{\isacommand{locale}}}} or \hyperlink{command.class}{\mbox{\isa{\isacommand{class}}}} may involve a
+ \hyperlink{keyword.begin}{\mbox{\isa{\isakeyword{begin}}}} that needs to be matched by \hyperlink{command.local.end}{\mbox{\isa{\isacommand{end}}}}, according to the usual rules for nested blocks.
\end{description}%
\end{isamarkuptext}%