+static int vcard_address_fields[] = {
+ -1, /* vCard(post office box) - not used */
+ -1, /* vCard(the extended address) - not used */
+ 2, /* vCard(the street address) - ADDRESS */
+ 4, /* vCard(the locality) - CITY */
+ 5, /* vCard(the region) - STATE */
+ 6, /* vCard(the postal code) - ZIP */
+ 7 /* vCard(the country name) - COUNTRY */
+};
+
+enum {
+ VCARD_KEY = 0,
+ VCARD_KEY_ATTRIBUTE,
+ VCARD_VALUE,
+};
+
+static char *
+vcard_get_line_element(char *line, int element)
+{
+ int i;
+ char *line_copy = 0;
+ char *result = 0;
+ char *key = 0;
+ char *key_attr = 0;
+ char *value = 0;
+
+ line_copy = xstrdup(line);
+
+ /* change newline characters, if present, to end of string */
+ for(i=0; line_copy[i]; i++) {
+ if(line_copy[i] == '\r' || line_copy[i] == '\n') {
+ line_copy[i] = '\0';
+ break;
+ }
+ }
+
+ /* separate key from value */
+ for(i=0; line_copy[i]; i++) {
+ if(line_copy[i] == ':') {
+ line_copy[i] = '\0';
+ key = line_copy;
+ value = &line_copy[i+1];
+ break;
+ }
+ }
+
+ /* separate key from key attributes */
+ /* works for vCard 2 as well (automagically) */
+ if (key) {
+ for(i=0; key[i]; i++) {
+ if(key[i] == ';') {
+ key[i] = '\0';
+ key_attr = &key[i+1];
+ break;
+ }
+ }
+ }
+
+ switch(element) {
+ case VCARD_KEY:
+ if(key)
+ result = xstrdup(key);
+ break;
+ case VCARD_KEY_ATTRIBUTE:
+ if(key_attr)
+ result = xstrdup(key_attr);
+ break;
+ case VCARD_VALUE:
+ if(value)
+ result = xstrdup(value);
+ break;
+ }
+
+ xfree(line_copy);
+ return result;
+}
+
+static void
+vcard_parse_email(list_item item, char *line)
+{
+ char *email;
+
+ email = vcard_get_line_element(line, VCARD_VALUE);
+
+ if(item[1]) {
+ item[1] = strconcat(item[1], ",", email, 0);
+ xfree(email);
+ }
+ else {
+ item[1] = email;
+ }
+}
+
+static void
+vcard_parse_address(list_item item, char *line)
+{
+ int i;
+ int k;
+ char *value;
+ char *address_field;
+
+ value = vcard_get_line_element(line, VCARD_VALUE);
+ if(!value)
+ return;
+
+ address_field = value;
+ for(i=k=0; value[i]; i++) {
+ if(value[i] == ';') {
+ value[i] = '\0';
+ if(vcard_address_fields[k] >= 0) {
+ item[vcard_address_fields[k]] = xstrdup(address_field);
+ }
+ address_field = &value[i+1];
+ k++;
+ if((k+1)==(sizeof(vcard_address_fields)/sizeof(*vcard_address_fields)))
+ break;
+ }
+ }
+ item[vcard_address_fields[k]] = xstrdup(address_field);
+ xfree(value);
+}
+
+static void
+vcard_parse_name(list_item item, char *line)
+{
+ // store the "N" field into "NAME" *if* no "FN:"
+ // value has already been stored here
+ if(item[0]) return;
+
+ int i = -1;
+ item[0] = vcard_get_line_element(line, VCARD_VALUE);
+ // "N:" can be multivalued => replace ';' separators by ' '
+ while(item[0][++i]) if(item[0][i] == ';') item[0][i] = ' ';
+
+ // http://www.daniweb.com/software-development/c/code/216919
+ char *original = item[0], *p = original;
+ int trimmed = 0;
+ do {
+ if (*original != ' ' || trimmed) {
+ trimmed = 1; *p++ = *original;
+ }
+ } while(*original++);
+}
+
+static void
+vcard_parse_phone(list_item item, char *line)
+{
+ int index = 8;
+ char *type = vcard_get_line_element(line, VCARD_KEY_ATTRIBUTE);
+ char *value = vcard_get_line_element(line, VCARD_VALUE);
+
+ /* set the standard number */
+ if (!type) {
+ item[index] = value;
+ }
+
+ /*
+ * see rfc2426 section 3.3.1
+ * Note: we probably support both vCard 2 and 3
+ */
+ else {
+ if (strcasestr(type, "home") != NULL) {
+ item[index] = xstrdup(value);
+ }
+ if (strcasestr(type, "work") != NULL) {
+ item[index+1] = xstrdup(value);
+ }
+ if (strcasestr(type, "fax") != NULL) {
+ item[index+2] = xstrdup(value);
+ }
+ if (strcasestr(type, "cell") != NULL) {
+ item[index+3] = xstrdup(value);
+ }
+
+ xfree(type);
+ xfree(value);
+ }
+}
+
+static void
+vcard_parse_line(list_item item, char *line)
+{
+ int i;
+ char *key;
+
+ for(i=0; vcard_fields[i]; i++) {
+ key = vcard_fields[i];
+
+ if(0 == strncmp(key, line, strlen(key))) {
+ if(0 == strcmp(key, "EMAIL"))
+ vcard_parse_email(item, line);
+ else if(i == 2)
+ vcard_parse_address(item, line);
+ else if(0 == strcmp(key, "TEL"))
+ vcard_parse_phone(item, line);
+ else if(0 == strcmp(key, "N"))
+ vcard_parse_name(item, line);
+ else
+ item[i] = vcard_get_line_element(line, VCARD_VALUE);
+ return;
+ }
+ }
+}
+
+static void
+vcard_parse_item(FILE *in)
+{
+ char *line = NULL;
+ list_item item = item_create();
+
+ while(!feof(in)) {
+ line = getaline(in);
+
+ if(line && !strncmp("END:VCARD", line, 9)) {
+ xfree(line);
+ break;
+ }
+ else if(line) {
+ vcard_parse_line(item, line);
+ xfree(line);
+ }
+ }
+
+ add_item2database(item);
+ item_free(&item);
+}
+
+static int
+vcard_parse_file(FILE *in)
+{
+ char *line = NULL;
+
+ while(!feof(in)) {
+ line = getaline(in);
+
+ if(line && !strncmp("BEGIN:VCARD", line, 11)) {
+ xfree(line);
+ vcard_parse_item(in);
+ }
+ else if(line) {
+ xfree(line);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * end of vCard import filter
+ */
+
+/*
+ * csv addressbook export filters
+ */
+
+#define CSV_LAST (-1)
+#define CSV_UNDEFINED (-2)
+#define CSV_SPECIAL(X) (-3 - (X))
+#define CSV_IS_SPECIAL(X) ((X) <= -3)
+
+static int
+csv_export_common(FILE *out, struct db_enumerator e,
+ int fields[], void (*special_func)(FILE *, int, int))
+{
+ int i;
+
+ db_enumerate_items(e) {
+ for(i = 0; fields[i] != CSV_LAST; i++) {
+ if(fields[i] == CSV_UNDEFINED)
+ fprintf(out, "\"\"");
+ else if(CSV_IS_SPECIAL(fields[i])) {
+ if(special_func)
+ (*special_func)(out, e.item, fields[i]);
+ } else
+ /*fprintf(out,(
+ strchr(safe_str(database[e.item][field_idx(fields[i])]), ',') ||
+ strchr(safe_str(database[e.item][field_idx(fields[i])]), '\"')) ?
+ "\"%s\"" : "%s",
+ safe_str(database[e.item][field_idx(fields[i])])
+ );*/
+ fprintf(out, "\"%s\"",
+ safe_str(db_fget(e.item,fields[i])));
+
+ if(fields[i + 1] != CSV_LAST)
+ fputc(',', out);
+ }
+ fputc('\n', out);
+ }
+
+ return 0;
+}