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* NEWS: Document when yyparse started to return 2.

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* doc/bison.texinfo (Parser Function): Document when yyparse
returns 2.

* data/lalr1.cc: Revert part of previous change, as it's incompatible.
(b4_filename_type): Renamed back from b4_file_name_type.  All uses
changed.
(class position): file_name -> filename (reverting).  All uses changed.
This commit is contained in:
Paul Eggert
2005-09-15 14:06:52 +00:00
parent 94306d5282
commit b47dbebee5
4 changed files with 36 additions and 14 deletions
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15
doc/bison.texinfo
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@@ -3782,8 +3782,7 @@ For instance, if your locations use a file name, you may use
%parse-param @{ char const *file_name @};
%initial-action
@{
@@$.begin.file_name = @@$.end.file_name = file_name;
@@$.begin.file_name = @@$.end.file_name = file_name;
@@$.begin.filename = @@$.end.filename = file_name;
@};
@end example
@@ -4272,7 +4271,11 @@ without reading further.
The value returned by @code{yyparse} is 0 if parsing was successful (return
is due to end-of-input).
The value is 1 if parsing failed (return is due to a syntax error).
The value is 1 if parsing failed because of invalid input, i.e., input
that contains a syntax error or that causes @code{YYABORT} to be
invoked.
The value is 2 if parsing failed due to memory exhaustion.
@end deftypefun
In an action, you can cause immediate return from @code{yyparse} by using
@@ -6951,7 +6954,7 @@ Symbols}.
@c - %locations
@c - class Position
@c - class Location
@c - %define "file_name_type" "const symbol::Symbol"
@c - %define "filename_type" "const symbol::Symbol"
When the directive @code{%locations} is used, the C++ parser supports
location tracking, see @ref{Locations, , Locations Overview}. Two
@@ -6963,7 +6966,7 @@ and a @code{location}, a range composed of a pair of
The name of the file. It will always be handled as a pointer, the
parser will never duplicate nor deallocate it. As an experimental
feature you may change it to @samp{@var{type}*} using @samp{%define
"file_name_type" "@var{type}"}.
"filename_type" "@var{type}"}.
@end deftypemethod
@deftypemethod {position} {unsigned int} line
@@ -7323,7 +7326,7 @@ automatically propagated.
%initial-action
@{
// Initialize the initial location.
@@$.begin.file_name = @@$.end.file_name = &driver.file;
@@$.begin.filename = @@$.end.filename = &driver.file;
@};
@end example