\begin{describe}{mac}
{with-gensyms (@{ @<var> @! (@<var> @[@<name>@]) @}^*) \\ \ind
@<declaration>^* \\
- @<form>^*}
+ @<form>^*
+ \-\nlret @<value>^*}
Bind each @<var> (a symbol, not evaluated) to a freshly made gensym whose
name is based on the corresponding @<name> (a string, evaluated), and
evaluate the @<form>s as an implicit @|progn| in the resulting environment.
@{ @<var> @! (@<var> @[@<value-form>@]) @}^*) \\ \ind
@<declaration>^* \\
@<form>^*
- \nlret @<result-form>}
+ \-\nlret @<result-form>}
This is a helper to ensure that macro expansions evaluate their arguments
exactly once each, in the correct order.
If a @<value-form> is omitted, then the value of the corresponding @<var>
is used. It is conventional usage for a macro to wrap @|once-only| around
its body so as to convert the arguments which it should evaluate into safe
- gensyms capturing their runtime values. (Not that the simple expansion
+ gensyms capturing their runtime values. (Note that the simple expansion
given above can't do this correctly.) A bare symbol may be written in
place of a singleton list.
\end{describe}
true locatives, such that two locatives compare equal if and only if they
refer to the same place; but that doesn't work for these locatives.
-\begin{describe}{cls}{loc}
+\begin{describe}{cls}{locative}
The type of locative objects.
\end{describe}
-\begin{describe}{fun}{locp @<object> @> @<generalized-boolean>}
+\begin{describe}{fun}{locativep @<object> @> @<generalized-boolean>}
Return non-nil if and only if @<object> is a locative.
\end{describe}
@{ @<var> @! (@{ @<var> @!
(@<var> @[@<locative>@]) @}^*) @} \\ \ind
@<declaration>^* \\
- @<form>^*}
+ @<form>^*
+ \-\nlret @<values>^*}
This is a macro which hides the use of locatives from its caller using
symbol-macros.
An anaphoric macro implicitly binds a well-known name to a value of interest,
in the course of doing something else. The concept was popularized by Paul
-Graham \cite{FIXME:OnLisp}.
+Graham \cite{graham-1993:on-lisp}.
The macros described here all bind the variable @|it|.
The symbol @|it| is exported by the @|sod-utilities| package.
\end{describe}
-\begin{describe}{mac}{aif @<condition> @<consequent> @[@<alt>@]}
+\begin{describe}{mac}
+ {aif @<condition> @<consequent> @[@<alternative>@] @> @<value>^*}
Evaluate the @<condition>. If @<condition> is non-nil, then bind @|it| to
the resulting value and evaluate the @<consequent>, returning all of its
- values. Otherwise, evaluate @<alt>, returning all of its values.
+ values. Otherwise, evaluate @<alternative>, returning all of its values.
\end{describe}
-\begin{describe}{mac}{aand @<form>^*}
+\begin{describe}{mac}{aand @<form>^* @> @<value>^*}
Evaluate each @<form> in turn. If any @<form> evaluates to nil, then stop
and return nil. Each form except the first is evaluated with @|it| bound
to the (necessarily non-nil) value of the previous form. If all but the
(No @|aor| is provided, since @|it| would necessarily be bound to nil.)
-\begin{describe}{mac}{awhen @<condition> @<form>^*}
+\begin{describe}{mac}{awhen @<condition> @<form>^* @> nil}
If @<condition> evaluates to a non-nil value, bind @|it| to that value, and
evaluate the @<form>s as an implicit @|progn|. Otherwise, return nil.
\end{describe}
-\begin{describe}{mac}{acond @{ (@<condition> @<form>^*) @}^*}
+\begin{describe}{mac}{acond @{ (@<condition> @<form>^*) @}^* @> @<value>^*}
Evaluate each @<condition> in turn, until one of them produces a non-nil
value. If the @<condition> is followed by one or more @<form>s, then bind
@|it| to the non-nil value of the @<condition> and evaluate the @<form>s as
\end{describe}
\begin{describe*}
- {\dhead{mac}
- {acase @<scrutinee> @{ (@{ @<case> @! (@<case>^*) @} @<form>^*) @}^*}
- \dhead{mac}
- {aecase @<scrutinee> @{ (@{ @<case> @! (@<case>^*) @} @<form>^*) @}^*}
- \dhead{mac}{atypecase @<scrutinee> @{ (@<type> @<form>^*) @}^*}
- \dhead{mac}{aetypecase @<scrutinee> @{ (@<type> @<form>^*) @}^*}}
+ {\dhead{mac}{acase @<scrutinee>
+ @{ (@{ @<case> @! (@<case>^*) @} @<form>^*) @}^*
+ @> @<value>^*}
+ \dhead{mac}{aecase @<scrutinee>
+ @{ (@{ @<case> @! (@<case>^*) @} @<form>^*) @}^*
+ @> @<value>^*}
+ \dhead{mac}{atypecase @<scrutinee> @{ (@<type> @<form>^*) @}^*
+ @> @<value>^*}
+ \dhead{mac}{aetypecase @<scrutinee> @{ (@<type> @<form>^*) @}^*
+ @> @<value>^*}}
These are like the Common Lisp macros @|case|, @|ecase|, @|typecase|, and
@|etypecase|, except that @|it| is bound to the value of the @<scrutinee>
while evaluating the matching @<form>s.
\end{describe*}
-\begin{describe}{mac}{asetf @{ @<place> @<value> @}^*}
+\begin{describe}{mac}{asetf @{ @<place> @<value> @}^* @> @<value>^*}
For each @<place> and @<value> in turn: bind @|it| to the current value of
the @<place>, evaluate the @<value> expression, and store the resulting
- value back in the @<place>.
+ value back in the @<place>. Return the @<value>(s) stored by the final
+ pair: there may be more than one value, e.g., if @<place> is a @|values|
+ form.
For example, @|(asetf @<place> (1+ it))| is almost equivalent to @|(incf
@<place>)|, even if evaluating @<place> has side-effects.
The following utilities make use of the introspection features of the CLOS
metaobject protocol.
-\begin{describe}{gf}{instance-initargs @<instance>}
+\begin{describe}{gf}{instance-initargs @<instance> @> @<initargs-list>}
Return a fresh list of plausible initargs for the given @<instance>.
- This is done by digging through the instance's class's slot definitions and
- enquiring about their initargs. Initargs which are handled by methods on
- @|shared-initialize| or similar generic functions won't be discovered.
+ The default method should work for most classes, but may be overridden to
+ cope with special effects.
+
+ \begin{describe}{meth}{standard-object}
+ {instance-initargs (@<instance> standard-object) @> @<initargs-list>}
+ The default method works by digging through the instance's class's slot
+ definitions and enquiring about their initargs. Initargs which are
+ handled by methods on @|shared-initialize| or similar generic functions
+ won't be discovered.
+ \end{describe}
\end{describe}
\begin{describe*}
that generic function.
The default method on @|copy-instance-using-class| should work for most
- classes, but may be overridden to cope with special effects. It works as
- follows.
- \begin{enumerate}
- \item Allocate a fresh instance of @<class>, using @|allocate-instance|.
- \item For each slot defined by @<class>, if that slot is bound in the
- original instance, then set the corresponding slot in the new instance to
- the same value.
- \item Call @|shared-initialize| on the new instance, providing it the given
- list of @<initargs>, but inhibiting the usual initialization of slots
- from their initforms.
- \item Return the new instance.
- \end{enumerate}
+ classes, but may be overridden to cope with special effects.
+
+ \begin{describe}{meth}{standard-class}
+ {copy-instance-using-class \=(@<class> standard-class) @<instance> \\
+ \>\&rest initargs
+ \nlret @<new-instance>}
+ The default method works as follows.
+ \begin{enumerate}
+ \item Allocate a fresh instance of @<class>, using @|allocate-instance|.
+ \item For each slot defined by @<class>, if that slot is bound in the
+ original instance, then set the corresponding slot in the new instance
+ to the same value.
+ \item Call @|shared-initialize| on the new instance, providing it the
+ given list of @<initargs>, but inhibiting the usual initialization of
+ slots from their initforms.
+ \item Return the new instance.
+ \end{enumerate}
+ \end{describe}
\end{describe*}
\begin{describe*}
the partial order.
\end{describe}
+\begin{describe}{fun}{cross-product \&rest @<pieces>}
+ Return the cross product of the @<pieces>.
+
+ Each arguments may be a list, or a (non-nil) atom, which is equivalent to a
+ singleton list containing just that atom. Return a list of all possible
+ lists which can be constructed by taking one item from each argument list
+ in turn, in an arbitrary order.
+\end{describe}
+
\begin{describe}{fun}
{find-duplicates @<report> @<sequence> \&key :key :test}
Call @<report> on each pair of duplicate items in a @<sequence>.
and $y$ are considered equal if and only if @|(funcall @<test> (funcall
@<key> $x$) (funcall @<key> $y$))| returns non-nil.
+ The @<report> function is called as @|(funcall @<report> @<duplicate>
+ @<previous>)|. Duplicates are reported in order; the @<previous> item is
+ always the first matching item in the sequence.
+
This function will work for arbitrary @<test> functions, but it will run
- much more efficiently if @<test> is @|eq|, @|eql|, @|equal|, or @|equalp|
- (because it can use hash-tables).
+ much more efficiently if @<test> is @|eq|, @|eql|, @|equal|, or @|equalp|,
+ because it can use hash-tables. (The generic implementation for lists is
+ especially inefficient.)
\end{describe}
Dijkstra.
\end{describe}
+
+\subsection{Other exported symbols}
+
+\begin{describe}{sym}{int}
+ The symbol @|int| is exported by the @|sod-utilities| package, without
+ giving it any particular meaning. This is done because it's given
+ non-conflicting meanings by two different packages, and it's more
+ convenient for user code not to have to deal with an unnecessary symbol
+ conflict. Specifically, the @|sod| package wants to define it as a C type
+ specifier, see \descref{cls}{simple-c-type}; and @|optparse| wants to
+ define it as an option handler, see \descref{opt}{int}.
+\end{describe}
+
%%%--------------------------------------------------------------------------
\section{Option parser} \label{sec:misc.optparse}
\dhead{fun}{setf (opt-negated-tag @<option>) @<tag>}
\dhead{fun}{opt-arg-name @<option> @> @<string-or-null>}
\dhead{fun}{setf (opt-arg-name @<option>) @<string-or-null>}
- \dhead{fun}{opt-optional-p @<option> @> @<generalized-boolean>}
- \dhead{fun}{setf (opt-optional-p @<option>) @<generalized-boolean>}
+ \dhead{fun}{opt-arg-optional-p @<option> @> @<generalized-boolean>}
+ \dhead{fun}{setf (opt-arg-optional-p @<option>) @<generalized-boolean>}
\dhead{fun}{opt-documentation @<option> @> @<string-or-null>}
\dhead{fun}{setf (opt-documentation @<option>) @<string-or-null>}}
\end{describe*}
\&key :format-control :format-arguments}
\end{describe}
+\begin{describe}{fun}{option-parse-error @<msg> \&optional @<args>}
+\end{describe}
+
\begin{describe}{fun}{option-parse-remainder @<option-parser>}
\end{describe}
@<form>^*) @}^*}
\end{describe}
-\begin{describe}{fun}{augment-options @<options-list>}
+\begin{describe}{fun}{sod-frontend:augment-options @<options-list>}
\end{describe}
%%%--------------------------------------------------------------------------
\begin{describe*}
{\dhead{fun}{p-name @<property> @> @<name>}
+ \dhead{meth}{property}{file-location (@<property> property) @> @<floc>}
\dhead{fun}{p-value @<property> @> @<value>}
\dhead{fun}{p-type @<property> @> @<type>}
\dhead{fun}{p-key @<property> @> @<symbol>}
~mdw / sod / blobdiff