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Commit 178555c3 authored by Chris Lahey's avatar Chris Lahey
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Latest version of format.c.

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ChangeLog-1999-07-09
View file @ 178555c3
1998-08-15 Chris Lahey <clahey@umich.edu>
* src/format.c: Merged format_text and format_date into
format_number.
Added parsing of am/pm.
Added a short format description.
1998-08-15 Miguel de Icaza <miguel@nuclecu.unam.mx>
* src/item-cursor.c (item_cursor_drag_event): Make the drag cursor
......
ChangeLog-2000-02-23
View file @ 178555c3
1998-08-15 Chris Lahey <clahey@umich.edu>
* src/format.c: Merged format_text and format_date into
format_number.
Added parsing of am/pm.
Added a short format description.
1998-08-15 Miguel de Icaza <miguel@nuclecu.unam.mx>
* src/item-cursor.c (item_cursor_drag_event): Make the drag cursor
......
OChangeLog-1999-07-09
View file @ 178555c3
1998-08-15 Chris Lahey <clahey@umich.edu>
* src/format.c: Merged format_text and format_date into
format_number.
Added parsing of am/pm.
Added a short format description.
1998-08-15 Miguel de Icaza <miguel@nuclecu.unam.mx>
* src/item-cursor.c (item_cursor_drag_event): Make the drag cursor
......
OChangeLog-2000-02-23
View file @ 178555c3
1998-08-15 Chris Lahey <clahey@umich.edu>
* src/format.c: Merged format_text and format_date into
format_number.
Added parsing of am/pm.
Added a short format description.
1998-08-15 Miguel de Icaza <miguel@nuclecu.unam.mx>
* src/item-cursor.c (item_cursor_drag_event): Make the drag cursor
......
src/format.c
View file @ 178555c3
......@@ -16,14 +16,31 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <glib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <gnome.h>
#include <time.h>
gchar *format_text( gchar *format, gdouble number );
gchar *format_time( gchar *format, const time_t timec );
gchar *format_number( gdouble number, gchar *format );
/*
The returned string is newly allocated.
Current format is an optional date specification followed by an
optional number specification.
A date specification is an arbitrary sequence of characters (other
than '#', '0', '?', or '.') which is copied to the output. The
standard date fields are substituted for. If it ever finds an a or
a p it lists dates in 12 hour time, otherwise, it lists dates in 24
hour time.
A number specification is as described in the relavent portions of
the excel formatting information. Commas can currently only appear
at the end of the number specification. Fractions are not yet
supported.
*/
gchar *day_short[] =
{
......@@ -82,20 +99,28 @@ gchar *month_long[] =
void
test()
{
int timec = 1220000000;
printf( "%s|\n", format_text( "??0000.00?", 12.3456789 ) );
printf( "%s|\n", format_text( "??0000.00?", 12.3 ) );
printf( "%s|\n", format_text( "??0000.00?", 12345.6789 ) );
printf( "%s|\n", format_text( "???????.00", 0.123456789 ) );
printf( "%s|\n", format_text( "???0.000??#,,", 12200000 ) );
printf( "%s|\n", format_time( "hh:mm:ss", timec ) );
printf( "%s|\n", format_time( "mmmm dd, yyyy", timec ) );
printf( "%s|\n", format_time( "mmm d, yy h:m:s", timec ) );
double timec = 36022.63582;
printf( "%s|\n", format_number( 12.3456789, "??0000.00?" ) );
printf( "%s|\n", format_number( 12.3, "??0000.00?" ) );
printf( "%s|\n", format_number( 12345.6789, "??0000.00?" ) );
printf( "%s|\n", format_number( 0.123456789, "???????.00" ) );
printf( "%s|\n", format_number( 12200000, "???0.000??#,," ) );
printf( "%s|\n", format_number( timec, "hh:mm:ss" ) );
printf( "%s|\n", format_number( timec, "mmmm dd, yyyy" ) );
printf( "%s|\n", format_number( timec, "mmm d, yy h:m:s" ) );
printf( "%s|\n", format_number( timec, "mmm d, yy h:m:s PM" ) );
timec += 2 / 24.0;
printf( "%s|\n", format_number( timec, "hh:mm:ss" ) );
printf( "%s|\n", format_number( timec, "mmmm dd, yyyy" ) );
printf( "%s|\n", format_number( timec, "mmm d, yy h:m:s" ) );
printf( "%s|\n", format_number( timec, "mmm d, yy h:m:s PM" ) );
}
int
main( int argc, gchar *argv )
main( int argc, gchar *argv[] )
{
bindtextdomain(PACKAGE, GNOMELOCALEDIR);
textdomain(PACKAGE);
test();
return 0;
}
......@@ -118,170 +143,6 @@ static void do_roundup( GString *string )
}
}
gchar *
format_text( gchar *format, gdouble number )
{
gint left_req = 0, right_req = 0;
gint left_spaces = 0, right_spaces = 0;
gint right_allowed = 0;
gint i = 0;
gdouble temp;
gboolean negative = FALSE;
GString *string = g_string_new( "" );
#if 0
gint length;
#endif
gchar *returnvalue;
gint zero_count;
gint nine_count;
for ( i = 0; format[i] == '#'; i++ )
/* Empty statement */;
for ( ; format[i] == '?'; i++ )
left_spaces ++;
for ( ; format[i] == '0'; i++ )
{
left_req ++;
left_spaces ++;
}
if ( format[i] == '.' )
{
i++;
for ( ; format[i] == '0'; i++ )
{
right_req ++;
right_allowed ++;
right_spaces ++;
}
for ( ; format[i] == '?'; i++ )
{
right_spaces ++;
right_allowed ++;
}
for ( ; format[i] == '#'; i++ )
right_allowed ++;
}
for ( ; format[i] == ','; i++ )
number /= 1000.0;
if ( format[i] )
return NULL;
if ( number < 0.0 )
{
number = - number;
negative = TRUE;
}
#if 0
length = ceil( log10( number ) );
if ( log10( number ) == ceil( log10( number ) ) )
length ++;
length = length > left_req ? length : left_req;
length += 1;
length += right_allowed;
g_string_maybe_expand( string, length );
#endif
for ( temp = number; temp >= 1.0; temp /= 10.0 )
{
gint digit = floor( temp );
digit %= 10;
g_string_prepend_c( string, digit + '0' );
if ( left_req > 0 )
left_req --;
if ( left_spaces > 0 )
left_spaces --;
}
for ( ; left_req > 0; left_req --, left_spaces -- )
{
g_string_prepend_c( string, '0' );
}
for ( ; left_spaces > 0; left_spaces -- )
{
g_string_prepend_c( string, ' ' );
}
if( negative )
g_string_prepend_c( string, '-' );
g_string_append_c( string, '.' );
temp = number - floor( number );
for ( ; right_req > 0; right_req --, right_allowed --, right_spaces -- )
{
gint digit;
temp *= 10.0;
digit = floor( temp );
temp -= floor( temp );
if ( right_allowed == 1 && floor( temp * 10.0 ) >= 5 )
{
if ( digit < 9 )
digit ++;
else
{
digit = 0;
do_roundup( string );
}
}
g_string_append_c( string, digit + '0' );
}
zero_count = 0;
nine_count = 0;
for ( ; right_allowed > 0; right_allowed -- )
{
gint digit;
temp *= 10.0;
digit = floor( temp );
temp -= floor( temp );
if ( right_allowed == 1 && floor( temp * 10.0 ) >= 5 )
{
if ( digit < 9 )
digit ++;
else
{
digit = 0;
right_spaces -= zero_count;
zero_count = nine_count;
right_spaces += zero_count;
do_roundup( string );
}
}
if ( digit == 0 )
zero_count ++;
else
{
right_spaces -= zero_count + 1;
zero_count = 0;
}
if ( digit == 9 )
nine_count ++;
else
nine_count = 0;
g_string_append_c( string, digit + '0' );
}
g_string_truncate( string, string->len - zero_count );
for ( ; right_spaces > 0; right_spaces -- )
{
g_string_append_c( string, ' ' );
}
returnvalue = g_malloc0( string->len + 1);
strncpy( returnvalue, string->str, string->len );
returnvalue[string->len] = 0;
g_string_free( string, TRUE );
return returnvalue;
}
/* Parses the year field at the beginning of the format. Returns the
number of characters used. */
int append_year( GString *string, gchar *format, struct tm *time_split )
......@@ -331,16 +192,16 @@ int append_month( GString *string, gchar *format, struct tm *time_split )
/* Parses the hour field at the beginning of the format. Returns the
number of characters used. */
int append_hour( GString *string, gchar *format, struct tm *time_split )
int append_hour( GString *string, gchar *format, struct tm *time_split, int timeformat )
{
gchar temp[3];
if ( format[ 1 ] != 'h' )
{
sprintf( temp, "%d", time_split->tm_hour );
sprintf( temp, "%d", timeformat ? ( time_split->tm_hour % 12 ) : time_split->tm_hour );
g_string_append( string, temp );
return 1;
}
sprintf( temp, "%02d", time_split->tm_hour );
sprintf( temp, "%02d", timeformat ? ( time_split->tm_hour % 12 ) : time_split->tm_hour );
g_string_append( string, temp );
return 2;
}
......@@ -403,16 +264,97 @@ int append_second( GString *string, gchar *format, struct tm *time_split )
return 2;
}
gchar *format_time( gchar *format, const time_t timec )
/* Parses the day part field at the beginning of the format. Returns
the number of characters used. */
int append_half( GString *string, gchar *format, struct tm *time_split )
{
if ( time_split->tm_hour <= 11 )
{
if ( format[ 0 ] == 'a' || format[ 0 ] == 'p' )
g_string_append_c( string, 'a' );
else
g_string_append_c( string, 'A' );
}
else
{
if ( format[ 0 ] == 'a' || format[ 0 ] == 'p' )
g_string_append_c( string, 'p' );
else
g_string_append_c( string, 'P' );
}
if ( format[ 1 ] == 'm' || format[ 1 ] == 'M' )
{
g_string_append_c( string, format[ 1 ] );
return 2;
}
else return 1;
}
typedef struct
{
int decimal;
int timeformat;
int hasnumbers;
} format_info;
gchar *
format_number( gdouble number, gchar *format )
{
struct tm *time_split = localtime( &timec );
gint left_req = 0, right_req = 0;
gint left_spaces = 0, right_spaces = 0;
gint right_allowed = 0;
gint i = 0;
gdouble temp;
gboolean negative = FALSE;
GString *string = g_string_new( "" );
int i;
int length = strlen( format );
gboolean minute_mode = FALSE;
GString *number_string = g_string_new( "" );
gint length = strlen(format);
gchar *returnvalue;
gint zero_count;
gint nine_count;
format_info info;
gboolean minute_mode = FALSE;
gboolean done = FALSE;
gboolean any = FALSE;
gdouble date;
time_t timec;
struct tm *time_split;
date = number;
date -= 25569.0;
date *= 86400.0;
timec = date;
time_split = localtime( &timec );
info.decimal = length;
info.timeformat = 0;
info.hasnumbers = FALSE;
for ( i = 0; i < length; i++ )
{
switch ( format[i] )
{
case '.':
info.decimal = i;
break;
case 'a': /* Fall through */
case 'A': /* Fall through */
case 'p': /* Fall through */
case 'P':
info.timeformat = 1;
break;
case '0': /* Fall through */
case '#': /* Fall through */
case '?':
info.hasnumbers = TRUE;
break;
}
}
for ( i = 0; i < length && !done; i++ )
{
switch ( format[i] )
{
......@@ -428,7 +370,7 @@ gchar *format_time( gchar *format, const time_t timec )
minute_mode = FALSE;
break;
case 'h':
i += append_hour( string, format + i, time_split ) - 1;
i += append_hour( string, format + i, time_split, info.timeformat ) - 1;
minute_mode = TRUE;
break;
case 'd':
......@@ -439,17 +381,179 @@ gchar *format_time( gchar *format, const time_t timec )
i += append_second( string, format + i, time_split ) - 1;
minute_mode = FALSE;
break;
case 'a':
case 'A':
case 'p':
case 'P':
i += append_half( string, format + i, time_split ) - 1;
minute_mode = FALSE;
break;
case '0':
case '?':
case '#':
case '.':
done = any = TRUE;
break;
default:
g_string_append_c( string, format[i] );
break;
}
}
if(any)
{
for ( ; format[i] == '#'; i++ )
{
}
for ( ; format[i] == '?'; i++ )
{
left_spaces ++;
}
for ( ; format[i] == '0'; i++ )
{
left_req ++;
left_spaces ++;
}
if ( format[i] == '.' )
{
i++;
for ( ; format[i] == '0'; i++ )
{
right_req ++;
right_allowed ++;
right_spaces ++;
}
for ( ; format[i] == '?'; i++ )
{
right_spaces ++;
right_allowed ++;
}
for ( ; format[i] == '#'; i++ )
{
right_allowed ++;
}
}
for ( ; format[i] == ','; i++ )
{
number /= 1000.0;
}
if ( format[i] )
return NULL;
if ( number < 0.0 )
{
number = - number;
negative = TRUE;
}
#if 0
length = ceil( log10( number ) );
if ( log10( number ) == ceil( log10( number ) ) )
length ++;
length = length > left_req ? length : left_req;
length += 1;
length += right_allowed;
g_string_maybe_expand( number_string, length );
#endif
for ( temp = number; temp >= 1.0; temp /= 10.0 )
{
gint digit = floor( temp );
digit %= 10;
g_string_prepend_c( number_string, digit + '0' );
if ( left_req > 0 )
left_req --;
if ( left_spaces > 0 )
left_spaces --;
}
for ( ; left_req > 0; left_req --, left_spaces -- )
{
g_string_prepend_c( number_string, '0' );
}
for ( ; left_spaces > 0; left_spaces -- )
{
g_string_prepend_c( number_string, ' ' );
}
if( negative )
g_string_prepend_c( number_string, '-' );
g_string_append_c( number_string, '.' );
temp = number - floor( number );
for ( ; right_req > 0; right_req --, right_allowed --, right_spaces -- )
{
gint digit;
temp *= 10.0;
digit = floor( temp );
temp -= floor( temp );
if ( right_allowed == 1 && floor( temp * 10.0 ) >= 5 )
{
if ( digit < 9 )
digit ++;
else
{
digit = 0;
do_roundup( number_string );
}
}
g_string_append_c( number_string, digit + '0' );
}
zero_count = 0;
nine_count = 0;
for ( ; right_allowed > 0; right_allowed -- )
{
gint digit;
temp *= 10.0;
digit = floor( temp );
temp -= floor( temp );
if ( right_allowed == 1 && floor( temp * 10.0 ) >= 5 )
{
if ( digit < 9 )
digit ++;
else
{
digit = 0;
right_spaces -= zero_count;
zero_count = nine_count;
right_spaces += zero_count;
do_roundup( number_string );
}
}
if ( digit == 0 )
zero_count ++;
else
{
right_spaces -= zero_count + 1;
zero_count = 0;
}
if ( digit == 9 )
nine_count ++;
else
nine_count = 0;
g_string_append_c( number_string, digit + '0' );
}
g_string_truncate( number_string, number_string->len - zero_count );
for ( ; right_spaces > 0; right_spaces -- )
{
g_string_append_c( number_string, ' ' );
}
g_string_append( string, number_string->str );
}
returnvalue = g_malloc0( string->len + 1);
strncpy( returnvalue, string->str, string->len );
returnvalue[string->len] = 0;
g_string_free( string, TRUE );
g_string_free( number_string, TRUE );
return returnvalue;
}
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