diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Makefile.am | 2 | ||||
| -rw-r--r-- | lib/ephy-time-helpers.c | 283 | ||||
| -rw-r--r-- | lib/ephy-time-helpers.h | 38 |
3 files changed, 323 insertions, 0 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am index 8fd4d88d3..5c3236bb6 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -27,6 +27,7 @@ NOINST_H_FILES = \ ephy-signal-accumulator.h \ ephy-string.h \ ephy-stock-icons.h \ + ephy-time-helpers.h \ ephy-zoom.h TYPES_H_FILES = \ @@ -66,6 +67,7 @@ libephymisc_la_SOURCES = \ ephy-state.c \ ephy-string.c \ ephy-stock-icons.c \ + ephy-time-helpers.c \ ephy-zoom.c \ $(INST_H_FILES) \ $(NOINST_H_FILES) diff --git a/lib/ephy-time-helpers.c b/lib/ephy-time-helpers.c new file mode 100644 index 000000000..383468def --- /dev/null +++ b/lib/ephy-time-helpers.c @@ -0,0 +1,283 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- + * + * arch-tag: File containing code cut and pasted from elsewhere + * + * Copyright © 2000 Eazel, Inc. + * Copyright © 2002 Jorn Baayen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Authors: John Sullivan <sullivan@eazel.com> + * Jorn Baayen + */ + +/* Following code is copied from Rhythmbox rb-cut-and-paste-code.c */ + +#include <config.h> + +#include <string.h> +#include <glib/gi18n.h> +#include <glib.h> + +#include "ephy-time-helpers.h" + +/* Legal conversion specifiers, as specified in the C standard. */ +#define C_STANDARD_STRFTIME_CHARACTERS "aAbBcdHIjmMpSUwWxXyYZ" +#define C_STANDARD_NUMERIC_STRFTIME_CHARACTERS "dHIjmMSUwWyY" +#define SUS_EXTENDED_STRFTIME_MODIFIERS "EO" + +/** + * eel_strdup_strftime: + * + * Cover for standard date-and-time-formatting routine strftime that returns + * a newly-allocated string of the correct size. The caller is responsible + * for g_free-ing the returned string. + * + * Besides the buffer management, there are two differences between this + * and the library strftime: + * + * 1) The modifiers "-" and "_" between a "%" and a numeric directive + * are defined as for the GNU version of strftime. "-" means "do not + * pad the field" and "_" means "pad with spaces instead of zeroes". + * 2) Non-ANSI extensions to strftime are flagged at runtime with a + * warning, so it's easy to notice use of the extensions without + * testing with multiple versions of the library. + * + * @format: format string to pass to strftime. See strftime documentation + * for details. + * @time_pieces: date/time, in struct format. + * + * Return value: Newly allocated string containing the formatted time. + **/ + +char * +eel_strdup_strftime (const char *format, struct tm *time_pieces) +{ + GString *string; + const char *remainder, *percent; + char code[4], buffer[512]; + char *piece, *result, *converted; + size_t string_length; + gboolean strip_leading_zeros, turn_leading_zeros_to_spaces; + char modifier; + int i; + + /* Format could be translated, and contain UTF-8 chars, + * so convert to locale encoding which strftime uses */ + converted = g_locale_from_utf8 (format, -1, NULL, NULL, NULL); + g_return_val_if_fail (converted != NULL, NULL); + + string = g_string_new (""); + remainder = converted; + + /* Walk from % character to % character. */ + for (;;) { + percent = strchr (remainder, '%'); + if (percent == NULL) { + g_string_append (string, remainder); + break; + } + g_string_append_len (string, remainder, + percent - remainder); + + /* Handle the "%" character. */ + remainder = percent + 1; + switch (*remainder) { + case '-': + strip_leading_zeros = TRUE; + turn_leading_zeros_to_spaces = FALSE; + remainder++; + break; + case '_': + strip_leading_zeros = FALSE; + turn_leading_zeros_to_spaces = TRUE; + remainder++; + break; + case '%': + g_string_append_c (string, '%'); + remainder++; + continue; + case '\0': + g_warning ("Trailing %% passed to eel_strdup_strftime"); + g_string_append_c (string, '%'); + continue; + default: + strip_leading_zeros = FALSE; + turn_leading_zeros_to_spaces = FALSE; + break; + } + + modifier = 0; + if (strchr (SUS_EXTENDED_STRFTIME_MODIFIERS, *remainder) != NULL) { + modifier = *remainder; + remainder++; + + if (*remainder == 0) { + g_warning ("Unfinished %%%c modifier passed to eel_strdup_strftime", modifier); + break; + } + } + + if (strchr (C_STANDARD_STRFTIME_CHARACTERS, *remainder) == NULL) { + g_warning ("eel_strdup_strftime does not support " + "non-standard escape code %%%c", + *remainder); + } + + /* Convert code to strftime format. We have a fixed + * limit here that each code can expand to a maximum + * of 512 bytes, which is probably OK. There's no + * limit on the total size of the result string. + */ + i = 0; + code[i++] = '%'; + if (modifier != 0) { +#ifdef HAVE_STRFTIME_EXTENSION + code[i++] = modifier; +#endif + } + code[i++] = *remainder; + code[i++] = '\0'; + string_length = strftime (buffer, sizeof (buffer), + code, time_pieces); + if (string_length == 0) { + /* We could put a warning here, but there's no + * way to tell a successful conversion to + * empty string from a failure. + */ + buffer[0] = '\0'; + } + + /* Strip leading zeros if requested. */ + piece = buffer; + if (strip_leading_zeros || turn_leading_zeros_to_spaces) { + if (strchr (C_STANDARD_NUMERIC_STRFTIME_CHARACTERS, *remainder) == NULL) { + g_warning ("eel_strdup_strftime does not support " + "modifier for non-numeric escape code %%%c%c", + remainder[-1], + *remainder); + } + if (*piece == '0') { + do { + piece++; + } while (*piece == '0'); + if (!g_ascii_isdigit (*piece)) { + piece--; + } + } + if (turn_leading_zeros_to_spaces) { + memset (buffer, ' ', piece - buffer); + piece = buffer; + } + } + remainder++; + + /* Add this piece. */ + g_string_append (string, piece); + } + + /* Convert the string back into utf-8. */ + result = g_locale_to_utf8 (string->str, -1, NULL, NULL, NULL); + + g_string_free (string, TRUE); + g_free (converted); + + return result; +} + +/* Based on evolution/mail/message-list.c:filter_date() */ +char * +ephy_time_helpers_utf_friendly_time (time_t date) +{ + time_t nowdate; + time_t yesdate; + struct tm then, now, yesterday; + const char *format = NULL; + char *str = NULL; + gboolean done = FALSE; + + nowdate = time (NULL); + + if (date == 0) + return NULL; + + localtime_r (&date, &then); + localtime_r (&nowdate, &now); + + if (then.tm_mday == now.tm_mday && + then.tm_mon == now.tm_mon && + then.tm_year == now.tm_year) { + /* Translators: "friendly time" string for the current day, strftime format. like "Today 12:34 am" */ + format = _("Today %I:%M %p"); + done = TRUE; + } + + if (! done) { + yesdate = nowdate - 60 * 60 * 24; + localtime_r (&yesdate, &yesterday); + if (then.tm_mday == yesterday.tm_mday && + then.tm_mon == yesterday.tm_mon && + then.tm_year == yesterday.tm_year) { + /* Translators: "friendly time" string for the previous day, + * strftime format. e.g. "Yesterday 12:34 am" + */ + format = _("Yesterday %I:%M %p"); + done = TRUE; + } + } + + if (! done) { + int i; + for (i = 2; i < 7; i++) { + yesdate = nowdate - 60 * 60 * 24 * i; + localtime_r (&yesdate, &yesterday); + if (then.tm_mday == yesterday.tm_mday && + then.tm_mon == yesterday.tm_mon && + then.tm_year == yesterday.tm_year) { + /* Translators: "friendly time" string for a day in the current week, + * strftime format. e.g. "Wed 12:34 am" + */ + format = _("%a %I:%M %p"); + done = TRUE; + break; + } + } + } + + if (! done) { + if (then.tm_year == now.tm_year) { + /* Translators: "friendly time" string for a day in the current year, + * strftime format. e.g. "Feb 12 12:34 am" + */ + format = _("%b %d %I:%M %p"); + } else { + /* Translators: "friendly time" string for a day in a different year, + * strftime format. e.g. "Feb 12 1997" + */ + format = _("%b %d %Y"); + } + } + + if (format != NULL) { + str = eel_strdup_strftime (format, &then); + } + + if (str == NULL) { + /* impossible time or broken locale settings */ + str = g_strdup (_("Unknown")); + } + + return str; +} diff --git a/lib/ephy-time-helpers.h b/lib/ephy-time-helpers.h new file mode 100644 index 000000000..a91788479 --- /dev/null +++ b/lib/ephy-time-helpers.h @@ -0,0 +1,38 @@ +/* + * arch-tag: Header file for code cut and pasted from elsewhere + * + * Copyright © 2002 Jorn Baayen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +/* Following code is copied from Rhythmbox rb-cut-and-paste-code.h */ + +#include <time.h> + +#ifndef EPHY_TIME_HELPERS_H +#define EPHY_TIME_HELPERS_H + +G_BEGIN_DECLS + +char *eel_strdup_strftime (const char *format, + struct tm *time_pieces); + +char * ephy_time_helpers_utf_friendly_time (time_t date); + +G_END_DECLS + +#endif /* EPHY_TIME_HELPERS_H */ |