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g_date_set_parse: Also support nominative/genitive month names

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As the support of two grammatical cases of month names has been introduced
try to find both forms when parsing a date.

https://bugzilla.gnome.org/show_bug.cgi?id=749206
This commit is contained in:
Rafal Luzynski 2018-02-16 21:25:55 +01:00 committed by Philip Withnall
parent 03d06c175f
commit 9152244828
1 changed files with 66 additions and 1 deletions
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67
glib/gdate.c
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@ -879,11 +879,21 @@ static gchar *long_month_names[13] =
NULL,
};
static gchar *long_month_names_alternative[13] =
{
NULL,
};
static gchar *short_month_names[13] =
{
NULL,
};
static gchar *short_month_names_alternative[13] =
{
NULL,
};
/* This tells us if we need to update the parse info */
static gchar *current_locale = NULL;
@ -974,6 +984,11 @@ g_date_fill_parse_tokens (const gchar *str, GDateParseTokens *pt)
i = 1;
while (i < 13)
{
/* Here month names will be in a genitive case.
* Examples of how January may look in some languages:
* Catalan: "de gener", Croatian: "siječnja", Polish: "stycznia",
* Upper Sorbian: "januara".
*/
if (long_month_names[i] != NULL)
{
const gchar *found = strstr (normalized, long_month_names[i]);
@ -984,7 +999,27 @@ g_date_fill_parse_tokens (const gchar *str, GDateParseTokens *pt)
break;
}
}
/* Here month names will be in a nominative case.
* Examples of how January may look in some languages:
* Catalan: "gener", Croatian: "Siječanj", Polish: "styczeń",
* Upper Sorbian: "Januar".
*/
if (long_month_names_alternative[i] != NULL)
{
const gchar *found = strstr (normalized, long_month_names_alternative[i]);
if (found != NULL)
{
pt->month = i;
break;
}
}
/* Differences between abbreviated nominative and abbreviated
* genitive month names are visible in very few languages but
* let's handle them.
*/
if (short_month_names[i] != NULL)
{
const gchar *found = strstr (normalized, short_month_names[i]);
@ -996,6 +1031,17 @@ g_date_fill_parse_tokens (const gchar *str, GDateParseTokens *pt)
}
}
if (short_month_names_alternative[i] != NULL)
{
const gchar *found = strstr (normalized, short_month_names_alternative[i]);
if (found != NULL)
{
pt->month = i;
break;
}
}
++i;
}
@ -1053,6 +1099,18 @@ g_date_prepare_to_parse (const gchar *str,
long_month_names[i] = g_utf8_normalize (casefold, -1, G_NORMALIZE_ALL);
g_free (casefold);
g_date_strftime (buf, 127, "%Ob", &d);
casefold = g_utf8_casefold (buf, -1);
g_free (short_month_names_alternative[i]);
short_month_names_alternative[i] = g_utf8_normalize (casefold, -1, G_NORMALIZE_ALL);
g_free (casefold);
g_date_strftime (buf, 127, "%OB", &d);
casefold = g_utf8_casefold (buf, -1);
g_free (long_month_names_alternative[i]);
long_month_names_alternative[i] = g_utf8_normalize (casefold, -1, G_NORMALIZE_ALL);
g_free (casefold);
++i;
}
@ -1099,6 +1157,13 @@ g_date_prepare_to_parse (const gchar *str,
DEBUG_MSG ((" %s %s", long_month_names[i], short_month_names[i]));
++i;
}
DEBUG_MSG (("Alternative month names:"));
i = 1;
while (i < 13)
{
DEBUG_MSG ((" %s %s", long_month_names_alternative[i], short_month_names_alternative[i]));
++i;
}
if (using_twodigit_years)
{
DEBUG_MSG (("**Using twodigit years with cutoff year: %u", twodigit_start_year));