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style: make conversion of version string to int public

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* src/parse-gram.y (str_to_version): Rename as/move to...
* src/strversion.h, src/strversion.c (strversion_to_int): these new
files.
This commit is contained in:
Akim Demaille
2020-11-11 08:19:31 +01:00
parent 14c65a35f0
commit d8b49e2b73
4 changed files with 99 additions and 48 deletions
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50
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. */
@@ -1043,56 +1042,11 @@ handle_pure_parser (location const *loc, char const *directive)
}
/* Convert VERSION into an int (MAJOR * 10000 + MINOR * 100 + MICRO).
E.g., "3.7.4" => 30704, "3.8" => 30800.
Return -1 on errors. */
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, 10000, &res))
return -1;
}
{
++cp;
char *prev = cp;
long minor = strtol (cp, &cp, 10);
if (errno || cp == prev || (*cp != '\0' && *cp != '.')
|| ! (0 <= minor && minor < 100)
|| INT_MULTIPLY_WRAPV (minor, 100, &minor)
|| INT_ADD_WRAPV (minor, res, &res))
return -1;
}
if (*cp == '.')
{
++cp;
char *prev = cp;
long micro = strtol (cp, &cp, 10);
if (errno || cp == prev || (*cp != '\0' && *cp != '.')
|| ! (0 <= micro && micro < 100)
|| INT_ADD_WRAPV (micro, 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"),