Diffstat (limited to 'libical/src/libical/icalperiod.c') (more/less context) (ignore whitespace changes)
-rw-r--r-- | libical/src/libical/icalperiod.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/libical/src/libical/icalperiod.c b/libical/src/libical/icalperiod.c new file mode 100644 index 0000000..c74c157 --- a/dev/null +++ b/libical/src/libical/icalperiod.c @@ -0,0 +1,170 @@ +/* -*- Mode: C -*- + ====================================================================== + FILE: icalperiod.c + CREATOR: eric 02 June 2000 + + $Id$ + $Locker$ + + (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org + + This program is free software; you can redistribute it and/or modify + it under the terms of either: + + The LGPL as published by the Free Software Foundation, version + 2.1, available at: http://www.fsf.org/copyleft/lesser.html + + Or: + + The Mozilla Public License Version 1.0. You may obtain a copy of + the License at http://www.mozilla.org/MPL/ + + The Original Code is eric. The Initial Developer of the Original + Code is Eric Busboom + + + ======================================================================*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "icalperiod.h" + +#include <assert.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> + +#ifdef ICAL_NO_LIBICAL +#define icalerror_set_errno(x) +#define icalerror_check_arg_rv(x,y) +#define icalerror_check_arg_re(x,y,z) +#else +#include "icalerror.h" +#include "icalmemory.h" +#endif + + + + +struct icalperiodtype icalperiodtype_from_string (const char* str) +{ + + struct icalperiodtype p, null_p; + char *s = icalmemory_strdup(str); + char *start, *end = s; + icalerrorstate es; + + /* Errors are normally generated in the following code, so save + the error state for resoration later */ + + icalerrorenum e = icalerrno; + + p.start = p.end = icaltime_null_time(); + p.duration = icaldurationtype_from_int(0); + + null_p = p; + + if(s == 0) goto error; + + start = s; + end = strchr(s, '/'); + + if(end == 0) goto error; + + *end = 0; + end++; + + p.start = icaltime_from_string(start); + + if (icaltime_is_null_time(p.start)) goto error; + + es = icalerror_get_error_state(ICAL_MALFORMEDDATA_ERROR); + icalerror_set_error_state(ICAL_MALFORMEDDATA_ERROR,ICAL_ERROR_NONFATAL); + + p.end = icaltime_from_string(end); + + icalerror_set_error_state(ICAL_MALFORMEDDATA_ERROR,es); + + + if (icaltime_is_null_time(p.end)){ + + p.duration = icaldurationtype_from_string(end); + + if(icaldurationtype_as_int(p.duration) == 0) goto error; + } + + icalerrno = e; + + return p; + + error: + icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); + return null_p; +} + + +const char* icalperiodtype_as_ical_string(struct icalperiodtype p) +{ + + const char* start; + const char* end; + + char *buf; + size_t buf_size = 40; + char* buf_ptr = 0; + + buf = (char*)icalmemory_new_buffer(buf_size); + buf_ptr = buf; + + + start = icaltime_as_ical_string(p.start); + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, start); + + if(!icaltime_is_null_time(p.end)){ + end = icaltime_as_ical_string(p.end); + } else { + end = icaldurationtype_as_ical_string(p.duration); + } + + icalmemory_append_char(&buf, &buf_ptr, &buf_size, '/'); + + icalmemory_append_string(&buf, &buf_ptr, &buf_size, end); + + + return buf; +} + + + +struct icalperiodtype icalperiodtype_null_period() { + struct icalperiodtype p; + p.start = icaltime_null_time(); + p.end = icaltime_null_time(); + p.duration = icaldurationtype_null_duration(); + + return p; +} +int icalperiodtype_is_null_period(struct icalperiodtype p){ + + if(icaltime_is_null_time(p.start) && + icaltime_is_null_time(p.end) && + icaldurationtype_is_null_duration(p.duration)){ + return 1; + } else { + return 0; + } +} + +int icalperiodtype_is_valid_period(struct icalperiodtype p){ + if(icaltime_is_valid_time(p.start) && + (icaltime_is_valid_time(p.end) || icaltime_is_null_time(p.end)) ) + { + return 1; + } + + return 0; +} + |