doc: improve the index

* doc/bison.texi: Fix uses of "deffn" so that the arguments of the
directives do not show in the index.
Remove a duplicate entry for api.pure.

diff --git a/doc/bison.texi b/doc/bison.texi
index 32396a89e7f500e894b1d49665c21c965571172e..21ce3929f2c2f0d6f2bb7eaadf0fdce680963662 100644 (file)
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -4866,7 +4866,6 @@ may override this restriction with the @code{%start} declaration as follows:
 @cindex reentrant parser
 @cindex pure parser
 @findex %define api.pure
 @cindex reentrant parser
 @cindex pure parser
 @findex %define api.pure

-@findex %define api.pure full

 
 A @dfn{reentrant} program is one which does not alter in the course of
 execution; in other words, it consists entirely of @dfn{pure} (read-only)
 
 A @dfn{reentrant} program is one which does not alter in the course of
 execution; in other words, it consists entirely of @dfn{pure} (read-only)


@@ -7364,7 +7363,7 @@ mysterious behavior altogether.  You simply need to activate a more powerful
 parser table construction algorithm by using the @code{%define lr.type}
 directive.
 
 parser table construction algorithm by using the @code{%define lr.type}
 directive.
 

-@deffn {Directive} {%define lr.type @var{TYPE}}
+@deffn {Directive} {%define lr.type} @var{TYPE}

 Specify the type of parser tables within the LR(1) family.  The accepted
 values for @var{TYPE} are:
 
 Specify the type of parser tables within the LR(1) family.  The accepted
 values for @var{TYPE} are:
 


@@ -7553,7 +7552,7 @@ split the parse instead.
 To adjust which states have default reductions enabled, use the
 @code{%define lr.default-reductions} directive.
 
 To adjust which states have default reductions enabled, use the
 @code{%define lr.default-reductions} directive.
 

-@deffn {Directive} {%define lr.default-reductions @var{WHERE}}
+@deffn {Directive} {%define lr.default-reductions} @var{WHERE}

 Specify the kind of states that are permitted to contain default reductions.
 The accepted values of @var{WHERE} are:
 @itemize
 Specify the kind of states that are permitted to contain default reductions.
 The accepted values of @var{WHERE} are:
 @itemize


@@ -7593,7 +7592,7 @@ that solves these problems for canonical LR, IELR, and LALR without
 sacrificing @code{%nonassoc}, default reductions, or state merging.  You can
 enable LAC with the @code{%define parse.lac} directive.
 
 sacrificing @code{%nonassoc}, default reductions, or state merging.  You can
 enable LAC with the @code{%define parse.lac} directive.
 

-@deffn {Directive} {%define parse.lac @var{VALUE}}
+@deffn {Directive} {%define parse.lac} @var{VALUE}

 Enable LAC to improve syntax error handling.
 @itemize
 @item @code{none} (default)
 Enable LAC to improve syntax error handling.
 @itemize
 @item @code{none} (default)


@@ -7689,7 +7688,7 @@ resolution because they are useless in the generated parser.  However,
 keeping unreachable states is sometimes useful when trying to understand the
 relationship between the parser and the grammar.
 
 keeping unreachable states is sometimes useful when trying to understand the
 relationship between the parser and the grammar.
 

-@deffn {Directive} {%define lr.keep-unreachable-states @var{VALUE}}
+@deffn {Directive} {%define lr.keep-unreachable-states} @var{VALUE}

 Request that Bison allow unreachable states to remain in the parser tables.
 @var{VALUE} must be a Boolean.  The default is @code{false}.
 @end deffn
 Request that Bison allow unreachable states to remain in the parser tables.
 @var{VALUE} must be a Boolean.  The default is @code{false}.
 @end deffn