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Fix CSV importer to handle GMT + 13 Timezone (New Zealand Daylight Time).

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Also remove special time calculations and use gnc_dmy2timespec_neutral()
for consistency with rest of GnuCash.
This commit is contained in:
John Ralls 2016-10-04 20:00:48 +02:00
parent 5a7c791c96
commit 901c89dffa
1 changed files with 23 additions and 78 deletions
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101
src/import-export/csv-imp/gnc-csv-model.c
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@ -98,11 +98,9 @@ static StfParseOptions_t* default_parse_options (void)
*/
static time64 parse_date_with_year (const char* date_str, int format)
{
time64 rawtime; /* The integer time */
struct tm retvalue, test_retvalue; /* The time in a broken-down structure */
int i, j, mem_length, orig_year = -1, orig_month = -1, orig_day = -1;
int i, j, mem_length, year = -1, month = -1, day = -1;
Timespec ts;
/* Buffer for containing individual parts (e.g. year, month, day) of a date */
char date_segment[5];
@ -155,15 +153,6 @@ static time64 parse_date_with_year (const char* date_str, int format)
}
}
/* Put some sane values in retvalue by using a fixed time for
* the non-year-month-day parts of the date. */
gnc_time (&rawtime);
gnc_localtime_r (&rawtime, &retvalue);
retvalue.tm_hour = 11;
retvalue.tm_min = 0;
retvalue.tm_sec = 0;
retvalue.tm_isdst = -1;
/* j traverses pmatch (index 0 contains the entire string, so we
* start at index 1 for the first meaningful match). */
j = 1;
@ -187,51 +176,32 @@ static time64 parse_date_with_year (const char* date_str, int format)
switch (segment_type)
{
case 'y':
retvalue.tm_year = atoi (date_segment);
year = atoi (date_segment);
/* Handle two-digit years. */
if (retvalue.tm_year < 100)
if (year < 100)
{
/* We allow two-digit years in the range 1969 - 2068. */
if (retvalue.tm_year < 69)
retvalue.tm_year += 100;
if (year < 69)
year += 2000;
else
year += 1900;
}
else
retvalue.tm_year -= 1900;
orig_year = retvalue.tm_year;
break;
case 'm':
orig_month = retvalue.tm_mon = atoi (date_segment) - 1;
month =atoi (date_segment);
break;
case 'd':
orig_day = retvalue.tm_mday = atoi (date_segment);
day = atoi (date_segment);
break;
}
j++;
}
}
/* Convert back to an integer. If gnc_mktime leaves retvalue unchanged,
* everything is okay; otherwise, an error has occurred. */
/* We have to use a "test" date value to account for changes in
* daylight savings time, which can cause a date change with gnc_mktime
* near midnight, causing the code to incorrectly think a date is
* incorrect. */
test_retvalue = retvalue;
gnc_mktime (&test_retvalue);
retvalue.tm_isdst = test_retvalue.tm_isdst;
rawtime = gnc_mktime (&retvalue);
if (retvalue.tm_mday == orig_day &&
retvalue.tm_mon == orig_month &&
retvalue.tm_year == orig_year)
{
return rawtime;
}
else
{
return -1;
}
ts = gnc_dmy2timespec_neutral(day, month, year);
return ts.tv_sec;
}
/** Parses a string into a date, given a format. The format cannot
@ -243,10 +213,8 @@ static time64 parse_date_with_year (const char* date_str, int format)
*/
static time64 parse_date_without_year (const char* date_str, int format)
{
time64 rawtime; /* The integer time */
struct tm retvalue, test_retvalue; /* The time in a broken-down structure */
int i, j, mem_length, orig_year = -1, orig_month = -1, orig_day = -1;
Timespec ts;
int i, j, mem_length, year = -1, month = -1, day = -1;
/* Buffer for containing individual parts (e.g. year, month, day) of a date */
gchar* date_segment;
@ -264,21 +232,14 @@ static time64 parse_date_without_year (const char* date_str, int format)
regcomp (&preg, regex, REG_EXTENDED);
regexec (&preg, date_str, 3, pmatch, 0);
regfree (&preg);
/* Set day, month, and year to today. We'll replace day & month with the
* values from the string.
*/
gnc_timespec2dmy(timespec_now(), &day, &month, &year);
/* If there wasn't a match, there was an error. */
if (pmatch[0].rm_eo == 0)
return -1;
/* Put some sane values in retvalue by using a fixed time for
* the non-year-month-day parts of the date. */
gnc_time (&rawtime);
gnc_localtime_r (&rawtime, &retvalue);
retvalue.tm_hour = 11;
retvalue.tm_min = 0;
retvalue.tm_sec = 0;
retvalue.tm_isdst = -1;
orig_year = retvalue.tm_year;
/* j traverses pmatch (index 0 contains the entire string, so we
* start at index 1 for the first meaningful match). */
j = 1;
@ -303,37 +264,21 @@ static time64 parse_date_without_year (const char* date_str, int format)
switch (segment_type)
{
case 'm':
orig_month = retvalue.tm_mon = atoi (date_segment) - 1;
month = atoi (date_segment);
break;
case 'd':
orig_day = retvalue.tm_mday = atoi (date_segment);
day = atoi (date_segment);
break;
}
g_free (date_segment);
j++;
}
}
/* Convert back to an integer. If gnc_mktime leaves retvalue unchanged,
* everything is okay; otherwise, an error has occurred. */
/* We have to use a "test" date value to account for changes in
* daylight savings time, which can cause a date change with gnc_mktime
* near midnight, causing the code to incorrectly think a date is
* incorrect. */
test_retvalue = retvalue;
gnc_mktime (&test_retvalue);
retvalue.tm_isdst = test_retvalue.tm_isdst;
rawtime = gnc_mktime (&retvalue);
if (retvalue.tm_mday == orig_day &&
retvalue.tm_mon == orig_month &&
retvalue.tm_year == orig_year)
{
return rawtime;
}
else
{
if (month > 12 || day > 31)
return -1;
}
ts = gnc_dmy2timespec_neutral(day, month, year);
return ts.tv_sec;
}
/** Parses a string into a date, given a format. This function