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Merge branch 'maint'

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* maint:
  c++: shorten the assertions that check whether tokens are correct
  c++: don't glue functions together
  lalr1.cc: YY_ASSERT should use api.prefix
  c++: don't use YY_ASSERT at all if parse.assert is disabled
  c++: style: follow the Bison m4 quoting pattern
  yacc.c: provide the Bison version as an integral macro
  regen
  style: make conversion of version string to int public
  %require: accept version numbers with three parts ("3.7.4")
  yacc.c: fix #definition of YYEMPTY
  gnulib: update
  doc: fix incorrect section title
  doc: minor grammar fixes in counterexamples section
This commit is contained in:
Akim Demaille
2020-11-13 07:01:19 +01:00
parent d0ea78ca47 d8cc6b073e
commit 23472033ee
21 changed files with 314 additions and 165 deletions
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35
src/parse-gram.y
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@@ -42,8 +42,6 @@
#include "system.h"
#include <c-ctype.h>
#include <errno.h>
#include <intprops.h>
#include <quotearg.h>
#include <vasnprintf.h>
#include <xmemdup0.h>
@@ -57,6 +55,7 @@
#include "reader.h"
#include "scan-code.h"
#include "scan-gram.h"
#include "strversion.h"
/* Pretend to be at least that version, to check features published
in that version while developping it. */
@@ -1053,41 +1052,11 @@ handle_pure_parser (location const *loc, char const *directive)
}
/* Convert VERSION into an int (MAJOR * 100 + MINOR). Return -1 on
errors.
Changes of behavior are only on minor version changes, so "3.0.5"
is the same as "3.0": 300. */
static int
str_to_version (char const *version)
{
IGNORE_TYPE_LIMITS_BEGIN
int res = 0;
errno = 0;
char *cp = NULL;
long major = strtol (version, &cp, 10);
if (errno || cp == version || *cp != '.' || major < 0
|| INT_MULTIPLY_WRAPV (major, 100, &res))
return -1;
++cp;
char *cp1 = NULL;
long minor = strtol (cp, &cp1, 10);
if (errno || cp1 == cp || (*cp1 != '\0' && *cp1 != '.')
|| ! (0 <= minor && minor < 100)
|| INT_ADD_WRAPV (minor, res, &res))
return -1;
IGNORE_TYPE_LIMITS_END
return res;
}
static void
handle_require (location const *loc, char const *version_quoted)
{
char *version = unquote (version_quoted);
required_version = str_to_version (version);
required_version = strversion_to_int (version);
if (required_version == -1)
{
complain (loc, complaint, _("invalid version requirement: %s"),