Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 12:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

doc: fix the description of the syntax of %token and %left

Browse Source 
Reported by Frank Heckenbach.
https://lists.gnu.org/r/bug-bison/2022-07/msg00007.html

* doc/bison.texi (Symbol Decls): here.
This commit is contained in:
Akim Demaille
2022-09-10 14:48:24 +02:00
parent dd6ca19927
commit 374cf8bbaf
1 changed files with 17 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
doc/bison.texi
View File

@@ -5318,15 +5318,27 @@ exclusively nonterminal symbols, use the safer @code{%nterm}:
The syntax of the various directives to declare symbols is as follows.
@example
%token @var{tag}? ( @var{id} @var{number}? @var{string}? )+ ( @var{tag} ( @var{id} @var{number}? @var{string}? )+ )*
%left @var{tag}? ( @var{id} @var{number}?)+ ( @var{tag} ( @var{id} @var{number}? )+ )*
%type @var{tag}? ( @var{id} | @var{char} | @var{string} )+ ( @var{tag} ( @var{id} | @var{char} | @var{string} )+ )*
%nterm @var{tag}? @var{id}+ ( @var{tag} @var{id}+ )*
@group
%token @var{tag}? ( (@var{id}|@var{char}) @var{number}? @var{string}? )+ \
( @var{tag} ( (@var{id}|@var{char}) @var{number}? @var{string}? )+ )*
@end group
@group
%left @var{tag}? ( (@var{id}|@var{char}|@var{string}) @var{number}? )+ \
( @var{tag} ( (@var{id}|@var{char}|@var{string}) @var{number}? )+ )*
@end group
@group
%type @var{tag}? (@var{id}|@var{char}|@var{string})+ \
( @var{tag} (@var{id}|@var{char}|@var{string})+ )*
@end group
@group
%nterm @var{tag}? @var{id}+ \
( @var{tag} @var{id}+ )*
@end group
@end example
@noindent
where @var{tag} denotes a type tag such as @samp{<ival>}, @var{id} denotes
an identifier such as @samp{NUM}, @var{number} a decimal or hexadecimal
an identifier such as @samp{NUM} or @samp{exp}, @var{number} a decimal or hexadecimal
integer such as @samp{300} or @samp{0x12d}, @var{char} a character literal
such as @samp{'+'}, and @var{string} a string literal such as
@samp{"number"}. The postfix quantifiers are @samp{?} (zero or one),