Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 04:13:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

Miscellaneous %define and %code cleanup.

Browse Source 
* data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
values are interpreted.
* doc/bison.texinfo (Decl Summary): Clean up and extend %define
documentation a little more.
* src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
muscle_percent_define_insert, muscle_percent_code_grow): New
functions/macros.
* src/muscle_tab.h (muscle_percent_define_insert,
muscle_percent_code_grow): Prototype.
* src/parse-gram.y (prologue_declaration): Use
muscle_percent_define_insert and muscle_percent_code_grow when parsing
%define and %code directives.

Make it easy to share %define boolean variables between the front-end
and back-end.  Though not used yet, this will be useful in the future.
* data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
Bison uses of names rather than just skeleton uses of names.
(b4_percent_define_get, b4_percent_define_ifdef): Rename
b4_percent_define_skeleton_variables(VARIABLE) to
b4_percent_define_bison_variables(VARIABLE).
(b4_percent_code_get, b4_percent_code_ifdef): Rename
b4_percent_code_skeleton_qualifiers(QUALIFIER) to
b4_percent_code_bison_qualifiers(QUALIFIER).
(b4_check_user_names_wrap): Update for renames.
* src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
muscle_percent_define_default): New functions mimicking
b4_percent_define_flag_if and b4_percent_define_default.

For %define variables, report locations for invalid values and
redefinitions.
* data/bison.m4 (b4_percent_define_flag_if): Read
b4_percent_define_loc(VARIABLE) to report the location of an invalid
value for VARIABLE.
(b4_percent_define_default): Save a special location in
b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
must later be reported as invalid.
* src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
functions.
(muscle_percent_define_insert): Record the location of VARIABLE in
muscle percent_define_loc(VARIABLE), and use it to report the previous
location for a redefinition.
(muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
(muscle_percent_define_default): Update like b4_percent_define_default.
(muscle_grow_user_name_list): Rename to...
(muscle_user_name_list_grow): ... this for consistency and use
muscle_location_grow.
* src/muscle_tab.h (muscle_location_grow): Prototype.
* tests/input.at (%define errors): Update expected output.
* tests/skeletons.at (%define boolean variables: invalid skeleton
defaults): New test case.
This commit is contained in:
Joel E. Denny
2007-03-02 06:26:28 +00:00
parent 0bf9249152
commit 9611cfa20b
10 changed files with 513 additions and 219 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
ChangeLog
View File

@@ -1,3 +1,57 @@
2007-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
Miscellaneous %define and %code cleanup.
* data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
values are interpreted.
* doc/bison.texinfo (Decl Summary): Clean up and extend %define
documentation a little more.
* src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
muscle_percent_define_insert, muscle_percent_code_grow): New
functions/macros.
* src/muscle_tab.h (muscle_percent_define_insert,
muscle_percent_code_grow): Prototype.
* src/parse-gram.y (prologue_declaration): Use
muscle_percent_define_insert and muscle_percent_code_grow when parsing
%define and %code directives.
Make it easy to share %define boolean variables between the front-end
and back-end. Though not used yet, this will be useful in the future.
* data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
Bison uses of names rather than just skeleton uses of names.
(b4_percent_define_get, b4_percent_define_ifdef): Rename
b4_percent_define_skeleton_variables(VARIABLE) to
b4_percent_define_bison_variables(VARIABLE).
(b4_percent_code_get, b4_percent_code_ifdef): Rename
b4_percent_code_skeleton_qualifiers(QUALIFIER) to
b4_percent_code_bison_qualifiers(QUALIFIER).
(b4_check_user_names_wrap): Update for renames.
* src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
muscle_percent_define_default): New functions mimicking
b4_percent_define_flag_if and b4_percent_define_default.
For %define variables, report locations for invalid values and
redefinitions.
* data/bison.m4 (b4_percent_define_flag_if): Read
b4_percent_define_loc(VARIABLE) to report the location of an invalid
value for VARIABLE.
(b4_percent_define_default): Save a special location in
b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
must later be reported as invalid.
* src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
functions.
(muscle_percent_define_insert): Record the location of VARIABLE in
muscle percent_define_loc(VARIABLE), and use it to report the previous
location for a redefinition.
(muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
(muscle_percent_define_default): Update like b4_percent_define_default.
(muscle_grow_user_name_list): Rename to...
(muscle_user_name_list_grow): ... this for consistency and use
muscle_location_grow.
* src/muscle_tab.h (muscle_location_grow): Prototype.
* tests/input.at (%define errors): Update expected output.
* tests/skeletons.at (%define boolean variables: invalid skeleton
defaults): New test case.
2007-02-28 Joel E. Denny <jdenny@ces.clemson.edu>
* src/print.c (lookahead_set, state_default_rule): Remove.

105
data/bison.m4
View File

@@ -285,11 +285,11 @@ b4_define_user_code([pre_prologue])
b4_define_user_code([stype])
# b4_check_user_names(WHAT, USER-LIST, SKELETON-NAMESPACE)
# b4_check_user_names(WHAT, USER-LIST, BISON-NAMESPACE)
# --------------------------------------------------------
# Warn if any name of type WHAT is used by the user (as recorded in USER-LIST)
# but is not used by the skeleton (as recorded by macros in the namespace
# SKELETON-NAMESPACE).
# but is not used by Bison (as recorded by macros in the namespace
# BISON-NAMESPACE).
#
# USER-LIST must expand to a list specifying all grammar occurrences of all
# names of type WHAT. Each item in the list must be a triplet specifying one
@@ -304,22 +304,22 @@ b4_define_user_code([stype])
# [[[[bar]], [[parser.y:5.7]], [[parser.y:5.16]]]],
# [[[[baz]], [[parser.y:8.7]], [[parser.y:8.16]]]]]])
#
# The macro SKELETON-NAMESPACE(bar) must be defined iff the name bar of type
# WHAT is used in the skeleton. Empty string names are fine, but it would be
# ugly for a Bison skeleton to actually use one.
# The macro BISON-NAMESPACE(bar) must be defined iff the name bar of type WHAT
# is used by Bison (in the front-end or in the skeleton). Empty string names
# are fine, but it would be ugly for Bison to actually use one.
#
# For example, to use b4_foo_skeleton_names for SKELETON-NAMESPACE and define
# that the names bar and baz are used in the skeleton:
# For example, to use b4_foo_bison_names for BISON-NAMESPACE and define that
# the names bar and baz are used by Bison:
#
# m4_define([b4_foo_skeleton_names(bar)])
# m4_define([b4_foo_skeleton_names(baz)])
# m4_define([b4_foo_bison_names(bar)])
# m4_define([b4_foo_bison_names(baz)])
#
# To invoke b4_check_user_names with TYPE foo, with USER-LIST
# b4_foo_user_names, with SKELETON-NAMESPACE b4_foo_skeleton_names, and with
# correct quoting:
# b4_foo_user_names, with BISON-NAMESPACE b4_foo_bison_names, and with correct
# quoting:
#
# b4_check_user_names([[foo]], [b4_foo_user_names],
# [[b4_foo_skeleton_names]])
# [[b4_foo_bison_names]])
m4_define([b4_check_user_names],
[m4_foreach([b4_occurrence], $2,
[m4_pushdef([b4_occurrence], b4_occurrence)dnl
@@ -339,60 +339,79 @@ m4_popdef([b4_end])dnl
# b4_percent_define_get(VARIABLE)
# -------------------------------
# If the %define variable VARIABLE is defined, emit its value. Also, record
# the skeleton's usage of VARIABLE by defining
# b4_percent_define_skeleton_variables(VARIABLE).
# Bison's usage of VARIABLE by defining
# b4_percent_define_bison_variables(VARIABLE).
#
# For example:
#
# b4_percent_define_get([[foo]])
m4_define([b4_percent_define_get],
[m4_define([b4_percent_define_skeleton_variables(]$1[)])dnl
[m4_define([b4_percent_define_bison_variables(]$1[)])dnl
m4_ifdef([b4_percent_define(]$1[)], [m4_indir([b4_percent_define(]$1[)])])])
# b4_percent_define_ifdef(VARIABLE, IF-TRUE, [IF-FALSE])
# ------------------------------------------------------
# If the %define variable VARIABLE is defined, expand IF-TRUE, else expand
# IF-FALSE. Also, record the skeleton's usage of VARIABLE by defining
# b4_percent_define_skeleton_variables(VARIABLE).
# IF-FALSE. Also, record Bison's usage of VARIABLE by defining
# b4_percent_define_bison_variables(VARIABLE).
#
# For example:
#
# b4_percent_define_ifdef([[foo]], [[it's defined]], [[it's undefined]])
m4_define([b4_percent_define_ifdef],
[m4_ifdef([b4_percent_define(]$1[)],
[m4_define([b4_percent_define_skeleton_variables(]$1[)])$2],
[m4_define([b4_percent_define_bison_variables(]$1[)])$2],
[$3])])
# b4_percent_define_flag_if(VARIABLE, IF-TRUE, [IF-FALSE])
# --------------------------------------------------------
# If the %define variable VARIABLE is defined to anything but "0" or "false",
# expand IF-TRUE. If it is defined to "0" or "false", expand IF-FALSE. If
# it is undefined, raise an error (this macro should be preceded by
# b4_percent_define_default). Also, record the skeleton's usage of VARIABLE by
# defining b4_percent_define_skeleton_variables(VARIABLE).
# Mimic muscle_percent_define_flag_if in ../src/muscle_tab.h exactly. That is,
# if the %define variable VARIABLE is defined to "" or "true", expand IF-TRUE.
# If it is defined to "false", expand IF-FALSE. Complain if it is undefined
# (a Bison or skeleton error since the default value should have been set
# already) or defined to any other value (possibly a user error). Also, record
# Bison's usage of VARIABLE by defining
# b4_percent_define_bison_variables(VARIABLE).
#
# For example:
#
# b4_percent_define_flag_if([[foo]], [[it's true]], [[it's false]])
m4_define([b4_percent_define_flag_if],
[b4_percent_define_ifdef([$1],
[m4_case(b4_percent_define_get([$1]),
[], [$2], [true], [$2], [false], [$3],
[m4_expand_once(
[b4_complain([[invalid value for %%define variable `%s']], [$1])],
[[b4_percent_define_flag_if($1)]])])],
[b4_fatal([[invalid %%define variable `%s' passed to b4_percent_define_flag_if]], [$1])])])
[m4_case(b4_percent_define_get([$1]),
[], [$2], [true], [$2], [false], [$3],
[m4_expand_once([dnl
m4_pushdef([b4_loc], m4_indir([b4_percent_define_loc(]$1[)]))dnl
b4_complain_at(b4_loc,
[[invalid value for %%define boolean variable `%s']],
[$1])dnl
m4_popdef([b4_loc])],
[[b4_percent_define_flag_if($1)]])])],
[b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_flag_if]], [$1])])])
# b4_percent_define_default(VARIABLE, DEFAULT)
# --------------------------------------------
# If the %define variable VARIABLE is undefined, set its value to DEFAULT.
# Mimic muscle_percent_define_default in ../src/muscle_tab.h exactly. That is,
# if the %define variable VARIABLE is undefined, set its value to DEFAULT.
# Don't record this as a Bison usage of VARIABLE as there's no reason to
# suspect that the value has yet influenced the output.
#
# For example:
#
# b4_percent_define_default([[foo]], [[default value]])
m4_define([b4_percent_define_default],
[m4_ifndef([b4_percent_define(]$1[)],
[m4_define([b4_percent_define(]$1[)], [$2])])])
[m4_define([b4_percent_define(]$1[)], [$2])dnl
m4_define([b4_percent_define_loc(]$1[)],
[[[[[Bison:b4_percent_define_default]:0.0]], [[[Bison:b4_percent_define_default]:0.0]]]])])])
# b4_percent_code_get([QUALIFIER])
# --------------------------------
# If any %code blocks for QUALIFIER are defined, emit them beginning with a
# comment and ending with synclines and a newline. If QUALIFIER is not
# specified or empty, do this for the unqualified %code blocks. Also, record
# the skeleton's usage of QUALIFIER (if specified) by defining
# b4_percent_code_skeleton_qualifiers(QUALIFIER).
# Bison's usage of QUALIFIER (if specified) by defining
# b4_percent_code_bison_qualifiers(QUALIFIER).
#
# For example, to emit any unqualified %code blocks followed by any %code
# blocks for the qualifier foo:
@@ -401,7 +420,7 @@ m4_define([b4_percent_define_default],
# b4_percent_code_get([[foo]])
m4_define([b4_percent_code_get],
[m4_pushdef([b4_macro_name], [[b4_percent_code(]$1[)]])dnl
m4_ifval([$1], [m4_define([b4_percent_code_skeleton_qualifiers(]$1[)])])dnl
m4_ifval([$1], [m4_define([b4_percent_code_bison_qualifiers(]$1[)])])dnl
m4_ifdef(b4_macro_name,
[b4_comment([m4_if([$#], [0], [[Unqualified %code]],
[[%code "]$1["]])[ blocks.]])
@@ -413,24 +432,24 @@ m4_popdef([b4_macro_name])])
# -----------------------------------------------------
# If any %code blocks for QUALIFIER (or unqualified %code blocks if
# QUALIFIER is empty) are defined, expand IF-TRUE, else expand IF-FALSE.
# Also, record the skeleton's usage of QUALIFIER (if specified) by defining
# b4_percent_code_skeleton_qualifiers(QUALIFIER).
# Also, record Bison's usage of QUALIFIER (if specified) by defining
# b4_percent_code_bison_qualifiers(QUALIFIER).
m4_define([b4_percent_code_ifdef],
[m4_ifdef([b4_percent_code(]$1[)],
[m4_ifval([$1], [m4_define([b4_percent_code_skeleton_qualifiers(]$1[)])])$2],
[m4_ifval([$1], [m4_define([b4_percent_code_bison_qualifiers(]$1[)])])$2],
[$3])])
## --------------------------------------------------------- ##
## After processing the skeletons, check that all the user's ##
## %define variables and %code qualifiers were used. ##
## --------------------------------------------------------- ##
## ----------------------------------------------------------- ##
## After processing the skeletons, check that all the user's ##
## %define variables and %code qualifiers were used by Bison. ##
## ----------------------------------------------------------- ##
m4_define([b4_check_user_names_wrap],
[m4_ifdef([b4_percent_]$1[_user_]$2[s],
[b4_check_user_names([[%]$1 $2],
[b4_percent_]$1[_user_]$2[s],
[[b4_percent_]$1[_skeleton_]$2[s]])])])
[[b4_percent_]$1[_bison_]$2[s]])])])
m4_wrap([
b4_check_user_names_wrap([[define]], [[variable]])

32
doc/bison.texinfo
View File

@@ -4693,14 +4693,32 @@ already defined, so that the debugging facilities are compiled.
@deffn {Directive} %define @var{variable}
@deffnx {Directive} %define @var{variable} "@var{value}"
Define a variable to adjust Bison's behavior. The possible choices for
@var{variable}, as well as their meanings, depend on the selected target
language and/or the parser skeleton (@pxref{Decl Summary,,%language}).
Define a variable to adjust Bison's behavior.
The possible choices for @var{variable}, as well as their meanings, depend on
the selected target language and/or the parser skeleton (@pxref{Decl
Summary,,%language}).
Some @var{variable}s may be used as boolean values: in this case, the
skeleton will conventionally treat a @var{value} of @samp{false} as the
boolean variable being false; a @var{value} of @samp{true}, or @var{value}
being omitted altogether, will conversely define the variable as true.
Bison will warn if a @var{variable} is defined multiple times.
Omitting @code{"@var{value}"} is always equivalent to specifying it as
@code{""}.
Some @var{variable}s may be used as booleans.
In this case, Bison will complain if the variable definition does not meet one
of the following four conditions:
@enumerate
@item @code{"@var{value}"} is @code{"true"}
@item @code{"@var{value}"} is omitted (or is @code{""}).
This is equivalent to @code{"true"}.
@item @code{"@var{value}"} is @code{"false"}.
@item @var{variable} is never defined.
In this case, Bison selects a default value, which may depend on the selected
target language and/or parser skeleton.
@end enumerate
@end deffn
@deffn {Directive} %defines

2
lib/.cvsignore
View File

@@ -63,9 +63,9 @@ strtol.c
strtoul.c
strverscmp.c
strverscmp.h
unistd.h
unistd--.h
unistd-safer.h
unistd.h
unistd_.h
unlocked-io.h
verify.h

230
src/muscle_tab.c
View File

@@ -26,6 +26,7 @@
#include <hash.h>
#include <quotearg.h>
#include "complain.h"
#include "files.h"
#include "muscle_tab.h"
#include "getargs.h"
@@ -249,6 +250,207 @@ muscle_find (char const *key)
}
void
muscle_boundary_grow (char const *key, boundary bound)
{
char *extension;
MUSCLE_OBSTACK_SGROW (&muscle_obstack, bound.file);
obstack_1grow (&muscle_obstack, ':');
obstack_fgrow1 (&muscle_obstack, "%d", bound.line);
obstack_1grow (&muscle_obstack, '.');
obstack_fgrow1 (&muscle_obstack, "%d", bound.column);
obstack_1grow (&muscle_obstack, '\0');
extension = obstack_finish (&muscle_obstack);
muscle_grow (key, extension, "");
obstack_free (&muscle_obstack, extension);
}
void
muscle_location_grow (char const *key, location loc)
{
muscle_grow (key, "[[", "");
muscle_boundary_grow (key, loc.start);
muscle_grow (key, "]], [[", "");
muscle_boundary_grow (key, loc.end);
muscle_grow (key, "]]", "");
}
/* Reverse of muscle_location_grow. */
static location
muscle_location_decode (char const *key)
{
location loc;
char const *value = muscle_find_const (key);
aver (value);
aver (*value == '[');
aver (*++value == '[');
while (*++value)
switch (*value)
{
case '$':
aver (*++value == ']');
aver (*++value == '[');
obstack_sgrow (&muscle_obstack, "$");
break;
case '@':
switch (*++value)
{
case '@': obstack_sgrow (&muscle_obstack, "@" ); break;
case '{': obstack_sgrow (&muscle_obstack, "[" ); break;
case '}': obstack_sgrow (&muscle_obstack, "]" ); break;
default: aver (false); break;
}
break;
case '[':
aver (false);
break;
case ']':
{
char *boundary_str;
aver (*++value == ']');
obstack_1grow (&muscle_obstack, '\0');
boundary_str = obstack_finish (&muscle_obstack);
switch (*++value)
{
case ',':
boundary_set_from_string (&loc.start, boundary_str);
obstack_free (&muscle_obstack, boundary_str);
aver (*++value == ' ');
aver (*++value == '[');
aver (*++value == '[');
break;
case '\0':
boundary_set_from_string (&loc.end, boundary_str);
obstack_free (&muscle_obstack, boundary_str);
return loc;
break;
default:
aver (false);
break;
}
}
break;
default:
obstack_1grow (&muscle_obstack, *value);
break;
}
aver (false);
return loc;
}
void
muscle_user_name_list_grow (char const *key, char const *user_name,
location loc)
{
muscle_grow (key, "[[[[", ",");
muscle_grow (key, user_name, "");
muscle_grow (key, "]], ", "");
muscle_location_grow (key, loc);
muscle_grow (key, "]]", "");
}
#define MUSCLE_USER_NAME_CONVERT(NAME, PREFIX, USER_NAME, SUFFIX) \
do { \
char *tmp; \
size_t length = strlen ((USER_NAME)); \
tmp = xmalloc (sizeof (PREFIX) - 1 + length + sizeof (SUFFIX)); \
strcpy (tmp, (PREFIX)); \
strcpy (tmp + sizeof (PREFIX) - 1, (USER_NAME)); \
strcpy (tmp + sizeof (PREFIX) - 1 + length, (SUFFIX)); \
(NAME) = uniqstr_new (tmp); \
free (tmp); \
} while (0)
void
muscle_percent_define_insert (char const *variable, location variable_loc,
char const *value)
{
char const *name;
char const *loc_name;
MUSCLE_USER_NAME_CONVERT (name, "percent_define(", variable, ")");
MUSCLE_USER_NAME_CONVERT (loc_name, "percent_define_loc(", variable, ")");
if (muscle_find_const (name))
{
warn_at (variable_loc, _("%s `%s' redefined"),
"%define variable", variable);
warn_at (muscle_location_decode (loc_name), _("previous definition"));
}
MUSCLE_INSERT_STRING (name, value);
muscle_insert (loc_name, "");
muscle_location_grow (loc_name, variable_loc);
muscle_user_name_list_grow ("percent_define_user_variables", variable,
variable_loc);
}
bool
muscle_percent_define_flag_if (char const *variable)
{
char const *name;
char const *loc_name;
char const *usage_name;
char const *value;
bool result = false;
MUSCLE_USER_NAME_CONVERT (name, "percent_define(", variable, ")");
MUSCLE_USER_NAME_CONVERT (loc_name, "percent_define_loc(", variable, ")");
MUSCLE_USER_NAME_CONVERT (usage_name, "percent_define_bison_variables(",
variable, ")");
value = muscle_find_const (name);
if (value)
{
if (value[0] == '\0' || 0 == strcmp (value, "true"))
result = true;
else if (0 == strcmp (value, "false"))
result = false;
else if (!muscle_find_const (usage_name))
complain_at(muscle_location_decode (loc_name),
_("invalid value for %%define boolean variable `%s'"),
variable);
}
else
fatal(_("undefined %%define variable `%s' passed to muscle_percent_define_flag_if"),
variable);
muscle_insert (usage_name, "");
return result;
}
void
muscle_percent_define_default (char const *variable, char const *value)
{
char const *name;
char const *loc_name;
MUSCLE_USER_NAME_CONVERT (name, "percent_define(", variable, ")");
MUSCLE_USER_NAME_CONVERT (loc_name, "percent_define_loc(", variable, ")");
if (!muscle_find_const (name))
{
location loc;
MUSCLE_INSERT_STRING (name, value);
loc.start.file = loc.end.file = "[Bison:muscle_percent_define_default]";
loc.start.line = loc.start.column = 0;
loc.end.line = loc.end.column = 0;
muscle_insert (loc_name, "");
muscle_location_grow (loc_name, loc);
}
}
void
muscle_percent_code_grow (char const *qualifier, location qualifier_loc,
char const *code, location code_loc)
{
char const *name;
MUSCLE_USER_NAME_CONVERT (name, "percent_code(", qualifier, ")");
muscle_code_grow (name, code, code_loc);
muscle_user_name_list_grow ("percent_code_user_qualifiers", qualifier,
qualifier_loc);
}
/*------------------------------------------------.
| Output the definition of ENTRY as a m4_define. |
`------------------------------------------------*/
@@ -278,31 +480,3 @@ muscles_m4_output (FILE *out)
{
hash_do_for_each (muscle_table, muscle_m4_output_processor, out);
}
void
muscle_boundary_grow (char const *key, boundary bound)
{
char *extension;
MUSCLE_OBSTACK_SGROW (&muscle_obstack, bound.file);
obstack_1grow (&muscle_obstack, ':');
obstack_fgrow1 (&muscle_obstack, "%d", bound.line);
obstack_1grow (&muscle_obstack, '.');
obstack_fgrow1 (&muscle_obstack, "%d", bound.column);
obstack_1grow (&muscle_obstack, '\0');
extension = obstack_finish (&muscle_obstack);
muscle_grow (key, extension, "");
obstack_free (&muscle_obstack, extension);
}
void
muscle_grow_user_name_list (char const *key, char const *user_name,
location loc)
{
muscle_grow (key, "[[[[", ",");
muscle_grow (key, user_name, "");
muscle_grow (key, "]], [[", "");
muscle_boundary_grow (key, loc.start);
muscle_grow (key, "]], [[", "");
muscle_boundary_grow (key, loc.end);
muscle_grow (key, "]]]]", "");
}

37
src/muscle_tab.h
View File

@@ -25,8 +25,8 @@
void muscle_init (void);
void muscle_insert (char const *key, char const *value);
char *muscle_find (char const *key);
char const *muscle_find_const (char const *key);
char *muscle_find (char const *key);
void muscle_free (void);
@@ -110,7 +110,9 @@ void muscle_code_grow (const char *key, const char *value, location loc);
void muscle_pair_list_grow (const char *muscle,
const char *a1, const char *a2);
void muscles_m4_output (FILE *out);
/* In the format `[[file_name:line.column]], [[file_name:line.column]]', append
LOC to MUSCLE. Use digraphs for special characters in each file name. */
void muscle_location_grow (char const *key, location loc);
/* In the format `file_name:line.column', append BOUND to MUSCLE. Use digraphs
for special characters in the file name. */
@@ -119,7 +121,36 @@ void muscle_boundary_grow (char const *key, boundary bound);
/* Grow KEY for the occurrence of the name USER_NAME at LOC appropriately for
use with b4_check_user_names in ../data/bison.m4. USER_NAME is not escaped
with digraphs, so it must not contain `[' or `]'. */
void muscle_grow_user_name_list (char const *key, char const *user_name,
void muscle_user_name_list_grow (char const *key, char const *user_name,
location loc);
/* Define the muscle for the %define variable VARIABLE appearing at
VARIABLE_LOC in the grammar file with value VALUE. Warn if VARIABLE is
already defined. Record this as a grammar occurrence of VARIABLE by
invoking muscle_user_name_list_grow. */
void muscle_percent_define_insert (char const *variable, location variable_loc,
char const *value);
/* Mimic b4_percent_define_flag_if in ../data/bison.m4 exactly. That is, if
the %define variable VARIABLE is defined to "" or "true", return true. If
it is defined to "false", return false. Complain if it is undefined (a
Bison error since the default value should have been set already) or defined
to any other value (possibly a user error). Also, record Bison's usage of
VARIABLE by defining b4_percent_define_bison_variables(VARIABLE). */
bool muscle_percent_define_flag_if (char const *variable);
/* Mimic b4_percent_define_default in ../data/bison.m4 exactly. That is, if
the %define variable VARIABLE is undefined, set its value to VALUE.
Don't record this as a Bison usage of VARIABLE as there's no reason to
suspect that the value has yet influenced the output. */
void muscle_percent_define_default (char const *variable, char const *value);
/* Grow the muscle for the %code qualifier QUALIFIER appearing at QUALIFIER_LOC
in the grammar file with code CODE appearing at CODE_LOC. Record this as a
grammar occurrence of VARIABLE by invoking muscle_user_name_list_grow. */
void muscle_percent_code_grow (char const *qualifier, location qualifier_loc,
char const *code, location code_loc);
void muscles_m4_output (FILE *out);
#endif /* not MUSCLE_TAB_H_ */

208
src/parse-gram.c
View File

@@ -675,17 +675,17 @@ static const yytype_int8 yyrhs[] =
/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
static const yytype_uint16 yyrline[] =
{
0, 210, 210, 218, 220, 224, 225, 235, 236, 250,
251, 256, 257, 258, 259, 260, 261, 266, 275, 276,
277, 278, 279, 280, 281, 282, 283, 284, 285, 286,
287, 288, 289, 313, 314, 315, 316, 320, 321, 322,
326, 333, 340, 344, 348, 353, 376, 377, 381, 393,
393, 398, 398, 403, 414, 429, 430, 431, 435, 436,
441, 443, 448, 449, 453, 454, 455, 456, 461, 466,
471, 477, 483, 494, 495, 504, 505, 511, 512, 513,
520, 520, 524, 525, 526, 531, 532, 534, 536, 538,
540, 550, 551, 557, 560, 569, 589, 591, 600, 605,
606, 611, 618, 620
0, 210, 210, 218, 220, 224, 225, 235, 236, 240,
241, 246, 247, 248, 249, 250, 251, 256, 265, 266,
267, 268, 269, 270, 271, 272, 273, 274, 275, 276,
277, 278, 279, 303, 304, 305, 306, 310, 311, 312,
316, 323, 330, 334, 338, 345, 360, 361, 365, 377,
377, 382, 382, 387, 398, 413, 414, 415, 419, 420,
425, 427, 432, 433, 437, 438, 439, 440, 445, 450,
455, 461, 467, 478, 479, 488, 489, 495, 496, 497,
504, 504, 508, 509, 510, 515, 516, 518, 520, 522,
524, 534, 535, 541, 544, 553, 573, 575, 584, 589,
590, 595, 602, 604
};
#endif
@@ -1914,31 +1914,21 @@ yyreduce:
/* Line 1537 of yacc.c */
#line 237 "parse-gram.y"
{
char const name_prefix[] = "percent_define(";
size_t length = strlen ((yyvsp[(2) - (3)].uniqstr));
char *name = xmalloc (sizeof name_prefix + length + 1);
strcpy (name, name_prefix);
strcpy (name + sizeof name_prefix - 1, (yyvsp[(2) - (3)].uniqstr));
strcpy (name + sizeof name_prefix - 1 + length, ")");
if (muscle_find_const (name))
warn_at ((yylsp[(2) - (3)]), _("%s `%s' redefined"), "%define variable", (yyvsp[(2) - (3)].uniqstr));
MUSCLE_INSERT_STRING (uniqstr_new (name), (yyvsp[(3) - (3)].chars));
free (name);
muscle_grow_user_name_list ("percent_define_user_variables", (yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]));
muscle_percent_define_insert ((yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].chars));
}
break;
case 9:
/* Line 1537 of yacc.c */
#line 250 "parse-gram.y"
#line 240 "parse-gram.y"
{ defines_flag = true; }
break;
case 10:
/* Line 1537 of yacc.c */
#line 252 "parse-gram.y"
#line 242 "parse-gram.y"
{
defines_flag = true;
spec_defines_file = xstrdup ((yyvsp[(2) - (2)].chars));
@@ -1948,42 +1938,42 @@ yyreduce:
case 11:
/* Line 1537 of yacc.c */
#line 256 "parse-gram.y"
#line 246 "parse-gram.y"
{ error_verbose = true; }
break;
case 12:
/* Line 1537 of yacc.c */
#line 257 "parse-gram.y"
#line 247 "parse-gram.y"
{ expected_sr_conflicts = (yyvsp[(2) - (2)].integer); }
break;
case 13:
/* Line 1537 of yacc.c */
#line 258 "parse-gram.y"
#line 248 "parse-gram.y"
{ expected_rr_conflicts = (yyvsp[(2) - (2)].integer); }
break;
case 14:
/* Line 1537 of yacc.c */
#line 259 "parse-gram.y"
#line 249 "parse-gram.y"
{ spec_file_prefix = (yyvsp[(2) - (2)].chars); }
break;
case 15:
/* Line 1537 of yacc.c */
#line 260 "parse-gram.y"
#line 250 "parse-gram.y"
{ spec_file_prefix = (yyvsp[(3) - (3)].chars); }
break;
case 16:
/* Line 1537 of yacc.c */
#line 262 "parse-gram.y"
#line 252 "parse-gram.y"
{
nondeterministic_parser = true;
glr_parser = true;
@@ -1993,7 +1983,7 @@ yyreduce:
case 17:
/* Line 1537 of yacc.c */
#line 267 "parse-gram.y"
#line 257 "parse-gram.y"
{
code_props action;
code_props_symbol_action_init (&action, (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)]));
@@ -2007,105 +1997,105 @@ yyreduce:
case 18:
/* Line 1537 of yacc.c */
#line 275 "parse-gram.y"
#line 265 "parse-gram.y"
{ language_argmatch ((yyvsp[(2) - (2)].chars), 1, &(yylsp[(1) - (2)])); }
break;
case 19:
/* Line 1537 of yacc.c */
#line 276 "parse-gram.y"
#line 266 "parse-gram.y"
{ add_param ("lex_param", (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)])); }
break;
case 20:
/* Line 1537 of yacc.c */
#line 277 "parse-gram.y"
#line 267 "parse-gram.y"
{ locations_flag = true; }
break;
case 21:
/* Line 1537 of yacc.c */
#line 278 "parse-gram.y"
#line 268 "parse-gram.y"
{ spec_name_prefix = (yyvsp[(2) - (2)].chars); }
break;
case 22:
/* Line 1537 of yacc.c */
#line 279 "parse-gram.y"
#line 269 "parse-gram.y"
{ spec_name_prefix = (yyvsp[(3) - (3)].chars); }
break;
case 23:
/* Line 1537 of yacc.c */
#line 280 "parse-gram.y"
#line 270 "parse-gram.y"
{ no_lines_flag = true; }
break;
case 24:
/* Line 1537 of yacc.c */
#line 281 "parse-gram.y"
#line 271 "parse-gram.y"
{ nondeterministic_parser = true; }
break;
case 25:
/* Line 1537 of yacc.c */
#line 282 "parse-gram.y"
#line 272 "parse-gram.y"
{ spec_outfile = (yyvsp[(2) - (2)].chars); }
break;
case 26:
/* Line 1537 of yacc.c */
#line 283 "parse-gram.y"
#line 273 "parse-gram.y"
{ spec_outfile = (yyvsp[(3) - (3)].chars); }
break;
case 27:
/* Line 1537 of yacc.c */
#line 284 "parse-gram.y"
#line 274 "parse-gram.y"
{ add_param ("parse_param", (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)])); }
break;
case 28:
/* Line 1537 of yacc.c */
#line 285 "parse-gram.y"
#line 275 "parse-gram.y"
{ pure_parser = true; }
break;
case 29:
/* Line 1537 of yacc.c */
#line 286 "parse-gram.y"
#line 276 "parse-gram.y"
{ push_parser = true; pull_parser = false; }
break;
case 30:
/* Line 1537 of yacc.c */
#line 287 "parse-gram.y"
#line 277 "parse-gram.y"
{ push_parser = true; pull_parser = true; }
break;
case 31:
/* Line 1537 of yacc.c */
#line 288 "parse-gram.y"
#line 278 "parse-gram.y"
{ version_check (&(yylsp[(2) - (2)]), (yyvsp[(2) - (2)].chars)); }
break;
case 32:
/* Line 1537 of yacc.c */
#line 290 "parse-gram.y"
#line 280 "parse-gram.y"
{
char const *skeleton_user = (yyvsp[(2) - (2)].chars);
if (strchr (skeleton_user, '/'))
@@ -2134,28 +2124,28 @@ yyreduce:
case 33:
/* Line 1537 of yacc.c */
#line 313 "parse-gram.y"
#line 303 "parse-gram.y"
{ token_table_flag = true; }
break;
case 34:
/* Line 1537 of yacc.c */
#line 314 "parse-gram.y"
#line 304 "parse-gram.y"
{ report_flag = report_states; }
break;
case 35:
/* Line 1537 of yacc.c */
#line 315 "parse-gram.y"
#line 305 "parse-gram.y"
{ yacc_flag = true; }
break;
case 39:
/* Line 1537 of yacc.c */
#line 323 "parse-gram.y"
#line 313 "parse-gram.y"
{
grammar_start_symbol_set ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]));
}
@@ -2164,7 +2154,7 @@ yyreduce:
case 40:
/* Line 1537 of yacc.c */
#line 327 "parse-gram.y"
#line 317 "parse-gram.y"
{
symbol_list *list;
for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
@@ -2176,7 +2166,7 @@ yyreduce:
case 41:
/* Line 1537 of yacc.c */
#line 334 "parse-gram.y"
#line 324 "parse-gram.y"
{
symbol_list *list;
for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
@@ -2188,7 +2178,7 @@ yyreduce:
case 42:
/* Line 1537 of yacc.c */
#line 341 "parse-gram.y"
#line 331 "parse-gram.y"
{
default_prec = true;
}
@@ -2197,7 +2187,7 @@ yyreduce:
case 43:
/* Line 1537 of yacc.c */
#line 345 "parse-gram.y"
#line 335 "parse-gram.y"
{
default_prec = false;
}
@@ -2206,8 +2196,10 @@ yyreduce:
case 44:
/* Line 1537 of yacc.c */
#line 349 "parse-gram.y"
#line 339 "parse-gram.y"
{
/* Do not invoke muscle_percent_code_grow here since it invokes
muscle_user_name_list_grow. */
muscle_code_grow ("percent_code()", (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)]));
code_scanner_last_string_free ();
}
@@ -2216,39 +2208,31 @@ yyreduce:
case 45:
/* Line 1537 of yacc.c */
#line 354 "parse-gram.y"
#line 346 "parse-gram.y"
{
char const name_prefix[] = "percent_code(";
size_t length = strlen ((yyvsp[(2) - (3)].uniqstr));
char *name = xmalloc (sizeof name_prefix + length + 1);
strcpy (name, name_prefix);
strcpy (name + sizeof name_prefix - 1, (yyvsp[(2) - (3)].uniqstr));
strcpy (name + sizeof name_prefix - 1 + length, ")");
muscle_code_grow (uniqstr_new (name), (yyvsp[(3) - (3)].chars), (yylsp[(3) - (3)]));
free (name);
muscle_percent_code_grow ((yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].chars), (yylsp[(3) - (3)]));
code_scanner_last_string_free ();
muscle_grow_user_name_list ("percent_code_user_qualifiers", (yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]));
}
break;
case 46:
/* Line 1537 of yacc.c */
#line 376 "parse-gram.y"
#line 360 "parse-gram.y"
{}
break;
case 47:
/* Line 1537 of yacc.c */
#line 377 "parse-gram.y"
#line 361 "parse-gram.y"
{ muscle_code_grow ("union_name", (yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
break;
case 48:
/* Line 1537 of yacc.c */
#line 382 "parse-gram.y"
#line 366 "parse-gram.y"
{
union_seen = true;
muscle_code_grow ("stype", (yyvsp[(3) - (3)].chars), (yylsp[(3) - (3)]));
@@ -2259,14 +2243,14 @@ yyreduce:
case 49:
/* Line 1537 of yacc.c */
#line 393 "parse-gram.y"
#line 377 "parse-gram.y"
{ current_class = nterm_sym; }
break;
case 50:
/* Line 1537 of yacc.c */
#line 394 "parse-gram.y"
#line 378 "parse-gram.y"
{
current_class = unknown_sym;
current_type = NULL;
@@ -2276,14 +2260,14 @@ yyreduce:
case 51:
/* Line 1537 of yacc.c */
#line 398 "parse-gram.y"
#line 382 "parse-gram.y"
{ current_class = token_sym; }
break;
case 52:
/* Line 1537 of yacc.c */
#line 399 "parse-gram.y"
#line 383 "parse-gram.y"
{
current_class = unknown_sym;
current_type = NULL;
@@ -2293,7 +2277,7 @@ yyreduce:
case 53:
/* Line 1537 of yacc.c */
#line 404 "parse-gram.y"
#line 388 "parse-gram.y"
{
symbol_list *list;
tag_seen = true;
@@ -2306,7 +2290,7 @@ yyreduce:
case 54:
/* Line 1537 of yacc.c */
#line 415 "parse-gram.y"
#line 399 "parse-gram.y"
{
symbol_list *list;
++current_prec;
@@ -2323,98 +2307,98 @@ yyreduce:
case 55:
/* Line 1537 of yacc.c */
#line 429 "parse-gram.y"
#line 413 "parse-gram.y"
{ (yyval.assoc) = left_assoc; }
break;
case 56:
/* Line 1537 of yacc.c */
#line 430 "parse-gram.y"
#line 414 "parse-gram.y"
{ (yyval.assoc) = right_assoc; }
break;
case 57:
/* Line 1537 of yacc.c */
#line 431 "parse-gram.y"
#line 415 "parse-gram.y"
{ (yyval.assoc) = non_assoc; }
break;
case 58:
/* Line 1537 of yacc.c */
#line 435 "parse-gram.y"
#line 419 "parse-gram.y"
{ current_type = NULL; }
break;
case 59:
/* Line 1537 of yacc.c */
#line 436 "parse-gram.y"
#line 420 "parse-gram.y"
{ current_type = (yyvsp[(1) - (1)].uniqstr); tag_seen = true; }
break;
case 60:
/* Line 1537 of yacc.c */
#line 442 "parse-gram.y"
#line 426 "parse-gram.y"
{ (yyval.list) = symbol_list_sym_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
break;
case 61:
/* Line 1537 of yacc.c */
#line 444 "parse-gram.y"
#line 428 "parse-gram.y"
{ (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), symbol_list_sym_new ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]))); }
break;
case 62:
/* Line 1537 of yacc.c */
#line 448 "parse-gram.y"
#line 432 "parse-gram.y"
{ (yyval.list) = (yyvsp[(1) - (1)].list); }
break;
case 63:
/* Line 1537 of yacc.c */
#line 449 "parse-gram.y"
#line 433 "parse-gram.y"
{ (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), (yyvsp[(2) - (2)].list)); }
break;
case 64:
/* Line 1537 of yacc.c */
#line 453 "parse-gram.y"
#line 437 "parse-gram.y"
{ (yyval.list) = symbol_list_sym_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
break;
case 65:
/* Line 1537 of yacc.c */
#line 454 "parse-gram.y"
#line 438 "parse-gram.y"
{ (yyval.list) = symbol_list_type_new ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
break;
case 66:
/* Line 1537 of yacc.c */
#line 455 "parse-gram.y"
#line 439 "parse-gram.y"
{ (yyval.list) = symbol_list_default_tagged_new ((yylsp[(1) - (1)])); }
break;
case 67:
/* Line 1537 of yacc.c */
#line 456 "parse-gram.y"
#line 440 "parse-gram.y"
{ (yyval.list) = symbol_list_default_tagless_new ((yylsp[(1) - (1)])); }
break;
case 68:
/* Line 1537 of yacc.c */
#line 462 "parse-gram.y"
#line 446 "parse-gram.y"
{
current_type = (yyvsp[(1) - (1)].uniqstr);
tag_seen = true;
@@ -2424,7 +2408,7 @@ yyreduce:
case 69:
/* Line 1537 of yacc.c */
#line 467 "parse-gram.y"
#line 451 "parse-gram.y"
{
symbol_class_set ((yyvsp[(1) - (1)].symbol), current_class, (yylsp[(1) - (1)]), true);
symbol_type_set ((yyvsp[(1) - (1)].symbol), current_type, (yylsp[(1) - (1)]));
@@ -2434,7 +2418,7 @@ yyreduce:
case 70:
/* Line 1537 of yacc.c */
#line 472 "parse-gram.y"
#line 456 "parse-gram.y"
{
symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
@@ -2445,7 +2429,7 @@ yyreduce:
case 71:
/* Line 1537 of yacc.c */
#line 478 "parse-gram.y"
#line 462 "parse-gram.y"
{
symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
@@ -2456,7 +2440,7 @@ yyreduce:
case 72:
/* Line 1537 of yacc.c */
#line 484 "parse-gram.y"
#line 468 "parse-gram.y"
{
symbol_class_set ((yyvsp[(1) - (3)].symbol), current_class, (yylsp[(1) - (3)]), true);
symbol_type_set ((yyvsp[(1) - (3)].symbol), current_type, (yylsp[(1) - (3)]));
@@ -2468,7 +2452,7 @@ yyreduce:
case 79:
/* Line 1537 of yacc.c */
#line 514 "parse-gram.y"
#line 498 "parse-gram.y"
{
yyerrok;
}
@@ -2477,77 +2461,77 @@ yyreduce:
case 80:
/* Line 1537 of yacc.c */
#line 520 "parse-gram.y"
#line 504 "parse-gram.y"
{ current_lhs = (yyvsp[(1) - (1)].symbol); current_lhs_location = (yylsp[(1) - (1)]); }
break;
case 82:
/* Line 1537 of yacc.c */
#line 524 "parse-gram.y"
#line 508 "parse-gram.y"
{ grammar_current_rule_end ((yylsp[(1) - (1)])); }
break;
case 83:
/* Line 1537 of yacc.c */
#line 525 "parse-gram.y"
#line 509 "parse-gram.y"
{ grammar_current_rule_end ((yylsp[(3) - (3)])); }
break;
case 85:
/* Line 1537 of yacc.c */
#line 531 "parse-gram.y"
#line 515 "parse-gram.y"
{ grammar_current_rule_begin (current_lhs, current_lhs_location); }
break;
case 86:
/* Line 1537 of yacc.c */
#line 533 "parse-gram.y"
#line 517 "parse-gram.y"
{ grammar_current_rule_symbol_append ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)])); }
break;
case 87:
/* Line 1537 of yacc.c */
#line 535 "parse-gram.y"
#line 519 "parse-gram.y"
{ grammar_current_rule_action_append ((yyvsp[(2) - (2)].code), (yylsp[(2) - (2)])); }
break;
case 88:
/* Line 1537 of yacc.c */
#line 537 "parse-gram.y"
#line 521 "parse-gram.y"
{ grammar_current_rule_prec_set ((yyvsp[(3) - (3)].symbol), (yylsp[(3) - (3)])); }
break;
case 89:
/* Line 1537 of yacc.c */
#line 539 "parse-gram.y"
#line 523 "parse-gram.y"
{ grammar_current_rule_dprec_set ((yyvsp[(3) - (3)].integer), (yylsp[(3) - (3)])); }
break;
case 90:
/* Line 1537 of yacc.c */
#line 541 "parse-gram.y"
#line 525 "parse-gram.y"
{ grammar_current_rule_merge_set ((yyvsp[(3) - (3)].uniqstr), (yylsp[(3) - (3)])); }
break;
case 92:
/* Line 1537 of yacc.c */
#line 551 "parse-gram.y"
#line 535 "parse-gram.y"
{ (yyval.uniqstr) = uniqstr_new ((yyvsp[(1) - (1)].chars)); }
break;
case 93:
/* Line 1537 of yacc.c */
#line 557 "parse-gram.y"
#line 541 "parse-gram.y"
{
(yyval.chars) = "";
}
@@ -2556,7 +2540,7 @@ yyreduce:
case 95:
/* Line 1537 of yacc.c */
#line 570 "parse-gram.y"
#line 554 "parse-gram.y"
{
code_props plain_code;
(yyvsp[(1) - (1)].code)[strlen ((yyvsp[(1) - (1)].code)) - 1] = '\n';
@@ -2570,14 +2554,14 @@ yyreduce:
case 96:
/* Line 1537 of yacc.c */
#line 590 "parse-gram.y"
#line 574 "parse-gram.y"
{ (yyval.symbol) = symbol_from_uniqstr ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
break;
case 97:
/* Line 1537 of yacc.c */
#line 592 "parse-gram.y"
#line 576 "parse-gram.y"
{
(yyval.symbol) = symbol_get (char_name ((yyvsp[(1) - (1)].character)), (yylsp[(1) - (1)]));
symbol_class_set ((yyval.symbol), token_sym, (yylsp[(1) - (1)]), false);
@@ -2588,14 +2572,14 @@ yyreduce:
case 98:
/* Line 1537 of yacc.c */
#line 600 "parse-gram.y"
#line 584 "parse-gram.y"
{ (yyval.symbol) = symbol_from_uniqstr ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
break;
case 101:
/* Line 1537 of yacc.c */
#line 612 "parse-gram.y"
#line 596 "parse-gram.y"
{
(yyval.symbol) = symbol_get (quotearg_style (c_quoting_style, (yyvsp[(1) - (1)].chars)), (yylsp[(1) - (1)]));
symbol_class_set ((yyval.symbol), token_sym, (yylsp[(1) - (1)]), false);
@@ -2605,7 +2589,7 @@ yyreduce:
case 103:
/* Line 1537 of yacc.c */
#line 621 "parse-gram.y"
#line 605 "parse-gram.y"
{
code_props plain_code;
code_props_plain_init (&plain_code, (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)]));
@@ -2619,7 +2603,7 @@ yyreduce:
/* Line 1537 of yacc.c */
#line 2623 "parse-gram.c"
#line 2607 "parse-gram.c"
default: break;
}
YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -2838,7 +2822,7 @@ yyreturn:
/* Line 1537 of yacc.c */
#line 631 "parse-gram.y"
#line 615 "parse-gram.y"

24
src/parse-gram.y
View File

@@ -235,17 +235,7 @@ prologue_declaration:
| "%debug" { debug_flag = true; }
| "%define" variable content.opt
{
char const name_prefix[] = "percent_define(";
size_t length = strlen ($2);
char *name = xmalloc (sizeof name_prefix + length + 1);
strcpy (name, name_prefix);
strcpy (name + sizeof name_prefix - 1, $2);
strcpy (name + sizeof name_prefix - 1 + length, ")");
if (muscle_find_const (name))
warn_at (@2, _("%s `%s' redefined"), "%define variable", $2);
MUSCLE_INSERT_STRING (uniqstr_new (name), $3);
free (name);
muscle_grow_user_name_list ("percent_define_user_variables", $2, @2);
muscle_percent_define_insert ($2, @2, $3);
}
| "%defines" { defines_flag = true; }
| "%defines" STRING
@@ -347,21 +337,15 @@ grammar_declaration:
}
| "%code" braceless
{
/* Do not invoke muscle_percent_code_grow here since it invokes
muscle_user_name_list_grow. */
muscle_code_grow ("percent_code()", $2, @2);
code_scanner_last_string_free ();
}
| "%code" ID braceless
{
char const name_prefix[] = "percent_code(";
size_t length = strlen ($2);
char *name = xmalloc (sizeof name_prefix + length + 1);
strcpy (name, name_prefix);
strcpy (name + sizeof name_prefix - 1, $2);
strcpy (name + sizeof name_prefix - 1 + length, ")");
muscle_code_grow (uniqstr_new (name), $3, @3);
free (name);
muscle_percent_code_grow ($2, @2, $3, @3);
code_scanner_last_string_free ();
muscle_grow_user_name_list ("percent_code_user_qualifiers", $2, @2);
}
;

4
tests/input.at
View File

@@ -811,7 +811,9 @@ start: ;
AT_CHECK([[bison input.y]], [0], [],
[[input.y:2.9-11: warning: %define variable `var' redefined
input.y:1.9-11: warning: previous definition
input.y:3.10-12: warning: %define variable `var' redefined
input.y:2.9-11: warning: previous definition
input.y:1.9-11: warning: %define variable `var' is not used
input.y:2.9-11: warning: %define variable `var' is not used
input.y:3.10-12: warning: %define variable `var' is not used
@@ -836,7 +838,7 @@ start: ;
]])
AT_CHECK([[bison Input.y]], [1], [],
[[Input.y: invalid value for %define variable `public'
[[Input.y:2.9-14: invalid value for %define boolean variable `public'
]])
AT_CLEANUP

36
tests/skeletons.at
View File

@@ -19,10 +19,10 @@
AT_BANNER([[Skeleton Support.]])
## ------------------------------ ##
## relative skeleton file names. ##
## Relative skeleton file names. ##
## ------------------------------ ##
AT_SETUP([[relative skeleton file names]])
AT_SETUP([[Relative skeleton file names]])
AT_CHECK([[mkdir tmp]])
@@ -79,10 +79,10 @@ AT_CLEANUP
## ------------------------------- ##
## installed skeleton file names. ##
## Installed skeleton file names. ##
## ------------------------------- ##
AT_SETUP([[installed skeleton file names]])
AT_SETUP([[Installed skeleton file names]])
m4_pushdef([AT_GRAM],
[[%{
@@ -141,3 +141,31 @@ AT_PARSER_CHECK([[./input-gram]], [[1]], [],
m4_popdef([AT_GRAM])
AT_CLEANUP
## ------------------------------------------------------ ##
## %define boolean variables: invalid skeleton defaults. ##
## ------------------------------------------------------ ##
AT_SETUP([[%define boolean variables: invalid skeleton defaults]])
AT_CHECK([[mkdir tmp]])
AT_DATA([[skel.c]],
[[b4_percent_define_default([[foo]], [[bogus value]])
b4_percent_define_flag_if([[foo]])
]])
AT_DATA([[input.y]],
[[%skeleton "./skel.c"
%%
start: ;
]])
AT_CHECK([[bison input.y]], [[1]], [[]],
[[[Bison:b4_percent_define_default]:0.0: invalid value for %define boolean variable `foo'
]])
AT_CLEANUP