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-/* -*- Mode: C -*-
- ======================================================================
- FILE: usecases.c
- CREATOR: eric 03 April 1999
-
- DESCRIPTION:
-
- $Id$
- $Locker$
-
- (C) COPYRIGHT 1999 Eric Busboom
- http://www.softwarestudio.org
-
- The contents of this file are subject to the Mozilla Public License
- Version 1.0 (the "License"); you may not use this file except in
- compliance with the License. You may obtain a copy of the License at
- http://www.mozilla.org/MPL/
-
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- the License for the specific language governing rights and
- limitations under the License.
-
- The original author is Eric Busboom
- The original code is usecases.c
-
-
- ======================================================================*/
-
-#include "ical.h"
-#include <assert.h>
-#include <string.h> /* for strdup */
-#include <stdlib.h> /* for malloc */
-#include <stdio.h> /* for printf */
-#include <time.h> /* for time() */
-#include "icalmemory.h"
-
-/*
-
- Here is the example iCal object that the examples routines in this
- file will use:
-
- BEGIN:VCALENDAR
- PRODID:-//RDU Software//NONSGML HandCal//EN
- VERSION:2.0
- BEGIN:VTIMEZONE
- BEGIN:VEVENT
- DTSTAMP:19980309T231000Z
- UID:guid-1.host1.com
- ORGANIZER;ROLE=CHAIR:MAILTO:mrbig@host.com
- ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:
- MAILTO:employee-A@host.com
- DESCRIPTION:Project XYZ Review Meeting
- CREATED:19980309T130000Z
- SUMMARY:XYZ Project Review
- DTSTART;TZID=US-Eastern:19980312T083000
- DTEND;TZID=US-Eastern:19980312T093000
- END:VEVENT
- END:VCALENDAR
-
-*/
-char str[] = "BEGIN:VCALENDAR
-PRODID:\"-//RDU Software//NONSGML HandCal//EN\"
-VERSION:2.0
-BEGIN:VEVENT
-DTSTAMP:19980309T231000Z
-UID:guid-1.host1.com
-ORGANIZER;ROLE=CHAIR:MAILTO:mrbig@host.com
-ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:MAILTO:employee-A@host.com
-DESCRIPTION:Project XYZ Review Meeting
-CATEGORIES:MEETING
-CREATED:19980309T130000Z
-SUMMARY:XYZ Project Review
-DTSTART;TZID=US-Eastern:19980312T083000
-DTEND;TZID=US-Eastern:19980312T093000
-END:VEVENT
-END:VCALENDAR";
-
-/* Creating iCal Components
-
- There are two ways to create new component in libical. You can
- build the component from primitive parts, or you can create it
- from a string.
-
- There are two variations of the API for building the component from
- primitive parts. In the first variation, you add each parameter and
- value to a property, and then add each property to a
- component. This results in a long series of function calls. This
- style is show in create_new_component()
-
- The second variation uses vargs lists to nest many primitive part
- constructors, resulting in a compact, neatly formated way to create
- components. This style is shown in create_new_component_with_va_args()
-
-
-
-*/
-
-icalcomponent* create_new_component()
-{
-
- /* variable definitions */
- icalcomponent* calendar;
- icalcomponent* event;
- struct icaltimetype atime = icaltimetype_from_timet( time(0),0);
- struct icalperiodtype rtime;
- icalproperty* property;
-
- /* Define a time type that will use as data later. */
- rtime.start = icaltimetype_from_timet( time(0),0);
- rtime.end = icaltimetype_from_timet( time(0),0);
- rtime.end.hour++;
-
- /* Create calendar and add properties */
-
- calendar = icalcomponent_new(ICAL_VCALENDAR_COMPONENT);
-
- /* Nearly every libical function call has the same general
- form. The first part of the name defines the 'class' for the
- function, and the first argument will be a pointer to a struct
- of that class. So, icalcomponent_ functions will all take
- icalcomponent* as their first argument. */
-
- /* The next call creates a new proeprty and immediately adds it to the
- 'calendar' component. */
-
- icalcomponent_add_property(
- calendar,
- icalproperty_new_version(strdup("2.0"))
- );
-
- /* Note the use of strdup() in the previous and next call. All
- properties constructors for properties with value types of
- TEXT will take control of the string you pass into them. Since
- the string '2.0' is a static string, we need to duplicate it in
- new memory before giving it to the property */
-
- /* Here is the short version of the memory rules:
-
- If the routine name has "new" in it:
- Caller owns the returned memory.
- If you pass in a string, the routine takes the memory.
-
- If the routine name has "add" in it:
- The routine takes control of the component, property,
- parameter or value memory.
-
- If the routine returns a string ( "get" and "as_ical_string" )
- The library owns the returned memory.
-
- */
-
- icalcomponent_add_property(
- calendar,
- icalproperty_new_prodid(strdup("-//RDU Software//NONSGML HandCal//EN"))
- );
-
- /* Add an event */
-
- event = icalcomponent_new(ICAL_VEVENT_COMPONENT);
-
- icalcomponent_add_property(
- event,
- icalproperty_new_dtstamp(atime)
- );
-
- /* In the previous call, atime is a struct, and it is passed in by value.
- This is how all compound types of values are handled. */
-
- icalcomponent_add_property(
- event,
- icalproperty_new_uid(strdup("guid-1.host1.com"))
- );
-
- /* add a property that has parameters */
- property = icalproperty_new_organizer(strdup("mrbig@host.com"));
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_role(ICAL_ROLE_CHAIR)
- );
-
- icalcomponent_add_property(event,property);
-
- /* In this style of component creation, you need to use an extra
- call to add parameters to properties, but the form of this
- operation is the same as adding a property to a component */
-
- /* add another property that has parameters */
- property = icalproperty_new_attendee(strdup("employee-A@host.com"));
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_role(ICAL_ROLE_REQPARTICIPANT)
- );
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_rsvp(1)
- );
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_cutype(ICAL_CUTYPE_GROUP)
- );
-
- icalcomponent_add_property(event,property);
-
-
- /* more properties */
-
- icalcomponent_add_property(
- event,
- icalproperty_new_description(strdup("Project XYZ Review Meeting"))
- );
-
- icalcomponent_add_property(
- event,
- icalproperty_new_categories(strdup("MEETING"))
- );
-
- icalcomponent_add_property(
- event,
- icalproperty_new_class(strdup("PUBLIC"))
- );
-
- icalcomponent_add_property(
- event,
- icalproperty_new_created(atime)
- );
-
- icalcomponent_add_property(
- event,
- icalproperty_new_summary(strdup("XYZ Project Review"))
- );
-
- property = icalproperty_new_dtstart(atime);
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_tzid(strdup("US-Eastern"))
- );
-
- icalcomponent_add_property(event,property);
-
-
- property = icalproperty_new_dtend(atime);
-
- icalproperty_add_parameter(
- property,
- icalparameter_new_tzid(strdup("US-Eastern"))
- );
-
- icalcomponent_add_property(event,property);
-
- icalcomponent_add_property(
- event,
- icalproperty_new_location(strdup("1CP Conference Room 4350"))
- );
-
- icalcomponent_add_component(calendar,event);
-
- return calendar;
-}
-
-
-/* Now, create the same component as in the previous routine, but use
-the constructor style. */
-
-icalcomponent* create_new_component_with_va_args()
-{
-
- /* This is a similar set up to the last routine */
- icalcomponent* calendar;
- struct icaltimetype atime = icaltimetype_from_timet( time(0),0);
- struct icalperiodtype rtime;
-
- rtime.start = icaltimetype_from_timet( time(0),0);
- rtime.end = icaltimetype_from_timet( time(0),0);
- rtime.end.hour++;
-
- /* Some of these routines are the same as those in the previous
- routine, but we've also added several 'vanew' routines. These
- 'vanew' routines take a list of properties, parameters or
- values and add each of them to the parent property or
- component. */
-
- calendar =
- icalcomponent_vanew(
- ICAL_VCALENDAR_COMPONENT,
- icalproperty_new_version(strdup("2.0")),
- icalproperty_new_prodid(strdup("-//RDU Software//NONSGML HandCal//EN")),
- icalcomponent_vanew(
- ICAL_VEVENT_COMPONENT,
- icalproperty_new_dtstamp(atime),
- icalproperty_new_uid(strdup("guid-1.host1.com")),
- icalproperty_vanew_organizer(
- strdup("mrbig@host.com"),
- icalparameter_new_role(ICAL_ROLE_CHAIR),
- 0
- ),
- icalproperty_vanew_attendee(
- strdup("employee-A@host.com"),
- icalparameter_new_role(ICAL_ROLE_REQPARTICIPANT),
- icalparameter_new_rsvp(1),
- icalparameter_new_cutype(ICAL_CUTYPE_GROUP),
- 0
- ),
- icalproperty_new_description(strdup("Project XYZ Review Meeting")),
- icalproperty_new_categories(strdup("MEETING")),
- icalproperty_new_class(strdup("PUBLIC")),
- icalproperty_new_created(atime),
- icalproperty_new_summary(strdup("XYZ Project Review")),
- icalproperty_vanew_dtstart(
- atime,
- icalparameter_new_tzid(strdup("US-Eastern")),
- 0
- ),
- icalproperty_vanew_dtend(
- atime,
- icalparameter_new_tzid(strdup("US-Eastern")),
- 0
- ),
- icalproperty_new_location(strdup("1CP Conference Room 4350")),
- 0
- ),
- 0
- );
-
-
- /* Note that properties with no parameters can use the regular
- 'new' constructor, while those with parameters use the 'vanew'
- constructor. And, be sure that the last argument in the 'vanew'
- call is a zero. Without, your program will probably crash. */
-
- return calendar;
-}
-
-
-/* Now, lets try to get a particular parameter out of a
- component. This routine will return a list of strings of all
- attendees who are required. Note that this routine assumes that the
- component that we pass in is a VEVENT; the top level component we
- created in the above two routines is a VCALENDAR */
-
-char *attendees[10];
-#define MAX_ATTENDEES 10;
-
-char** get_required_attendees(icalcomponent* event)
-{
- icalproperty* p;
- icalparameter* parameter;
- int c=0;
-
- assert(event != 0);
- assert(icalcomponent_isa(event) == ICAL_VEVENT_COMPONENT);
-
- /* This loop iterates over all of the ATTENDEE properties in the
- event */
-
- /* Yes, the iteration routines save their state in the event
- struct, so the are not thread safe unless you lock the whole
- event. */
-
- for(
- p = icalcomponent_get_first_property(event,ICAL_ATTENDEE_PROPERTY);
- p != 0;
- p = icalcomponent_get_next_property(event,ICAL_ATTENDEE_PROPERTY)
- ) {
-
- /* Get the first ROLE parameter in the property. There should
- only be one, so we wont bother to iterate over them. */
-
- parameter = icalproperty_get_first_parameter(p,ICAL_ROLE_PARAMETER);
-
- /* If the parameter indicates the participant is required, get
- the attendees name and stick a copy of it into the output
- array */
-
- if ( icalparameter_get_role(parameter) == ICAL_ROLE_REQPARTICIPANT)
- {
- attendees[c++] = strdup(icalproperty_get_attendee(p));
- }
- }
-
- return attendees;
-}
-
-/* Here is a similar example. If an attendee has a PARTSTAT of
- NEEDSACTION or has no PARTSTAT parameter, change it to
- TENTATIVE. */
-
-void update_attendees(icalcomponent* event)
-{
- icalproperty* p;
- icalparameter* parameter;
-
- assert(event != 0);
- assert(icalcomponent_isa(event) == ICAL_VEVENT_COMPONENT);
-
- for(
- p = icalcomponent_get_first_property(event,ICAL_ATTENDEE_PROPERTY);
- p != 0;
- p = icalcomponent_get_next_property(event,ICAL_ATTENDEE_PROPERTY)
- ) {
-
- parameter = icalproperty_get_first_parameter(p,ICAL_PARTSTAT_PARAMETER);
-
- if (parameter == 0) {
-
- /* There was no PARTSTAT parameter, so add one. */
- icalproperty_add_parameter(
- p,
- icalparameter_new_partstat(ICAL_PARTSTAT_TENTATIVE)
- );
-
- } else if (icalparameter_get_partstat(parameter) == ICAL_PARTSTAT_NEEDSACTION) {
- /* Remove the NEEDSACTION parameter and replace it with
- TENTATIVE */
-
- icalproperty_remove_parameter(p,ICAL_PARTSTAT_PARAMETER);
-
- /* Don't forget to free it */
- icalparameter_free(parameter);
-
- /* Add a new one */
- icalproperty_add_parameter(
- p,
- icalparameter_new_partstat(ICAL_PARTSTAT_TENTATIVE)
- );
- }
-
- }
-}
-
-/* Here are some examples of manipulating properties */
-
-void test_properties()
-{
- icalproperty *prop;
- icalparameter *param;
- icalvalue *value;
-
- icalproperty *clone;
-
- /* Create a new property */
- prop = icalproperty_vanew_comment(
- strdup("Another Comment"),
- icalparameter_new_cn("A Common Name 1"),
- icalparameter_new_cn("A Common Name 2"),
- icalparameter_new_cn("A Common Name 3"),
- icalparameter_new_cn("A Common Name 4"),
- 0);
-
- /* Iterate through all of the parameters in the property */
- for(param = icalproperty_get_first_parameter(prop,ICAL_ANY_PROPERTY);
- param != 0;
- param = icalproperty_get_next_parameter(prop,ICAL_ANY_PROPERTY)) {
-
- printf("Prop parameter: %s\n",icalparameter_get_cn(param));
- }
-
- /* Get a string representation of the property's value */
- printf("Prop value: %s\n",icalproperty_get_comment(prop));
-
- /* Spit out the property in its RFC 2445 representation */
- printf("As iCAL string:\n %s\n",icalproperty_as_ical_string(prop));
-
- /* Make a copy of the property. Caller owns the memory */
- clone = icalproperty_new_clone(prop);
-
- /* Get a reference to the value within the clone property */
- value = icalproperty_get_value(clone);
-
- printf("Value: %s",icalvalue_as_ical_string(value));
-
- /* Free the original and the clone */
- icalproperty_free(clone);
- icalproperty_free(prop);
-
-}
-
-
-
-/* Here are some ways to work with values. */
-void test_values()
-{
- icalvalue *v;
- icalvalue *copy;
-
- v = icalvalue_new_caladdress(strdup("cap://value/1"));
- printf("caladdress 1: %s\n",icalvalue_get_caladdress(v));
-
- icalvalue_set_caladdress(v,strdup("cap://value/2"));
- printf("caladdress 2: %s\n",icalvalue_get_caladdress(v));
- printf("String: %s\n",icalvalue_as_ical_string(v));
-
- copy = icalvalue_new_clone(v);
- printf("Clone: %s\n",icalvalue_as_ical_string(v));
- icalvalue_free(v);
- icalvalue_free(copy);
-
-
-}
-
-void test_parameters()
-{
- icalparameter *p;
-
- p = icalparameter_new_cn("A Common Name");
-
- printf("Common Name: %s\n",icalparameter_get_cn(p));
-
- printf("As String: %s\n",icalparameter_as_ical_string(p));
-}
-
-
-int test_parser()
-{
-
-
- icalcomponent *c = icalparser_parse_string(str);
- printf("%s\n",icalcomponent_as_ical_string(c));
- icalcomponent_free(c);
- icalmemory_free_ring();
- return 1;
-}
-
-
-int main(int argc, char *argv[])
-{
- icalcomponent *c1;
- icalcomponent *c2;
- icalcomponent *vevent;
- char **attendees;
-
- c1 = create_new_component();
- c2 = create_new_component_with_va_args();
-
- /* Extract the VEVENT component from the component */
-
- vevent = icalcomponent_get_first_component(c1,ICAL_VEVENT_COMPONENT);
-
- attendees = get_required_attendees(vevent);
-
- printf("Attendees: %s\n",attendees[0]);
-
- /* Now print out the component as a string. Remember that the
- library retains control of the memory returned by
- icalcomponent_as_ical_string. Do not sotre references to it or
- try to free it. It is stored on an internal ring buffer,and the
- library will eventuall reclaim it. */
-
- printf("%s\n",icalcomponent_as_ical_string(c1));
-
- return 0;
-
-}
-
-
-