The anticipated use case is loading the document data area from a
message Xapian document into a usable data structure.
---
util/string-map.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++
util/string-map.h | 8 ++++++++
2 files changed, 57 insertions(+)
diff --git a/util/string-map.c b/util/string-map.c
index ab0c42ab..b29a9ba0 100644
--- a/util/string-map.c
+++ b/util/string-map.c
@@ -268,3 +268,52 @@ _notmuch_string_map_serialize (void* ctx,
notmuch_string_map_t *map)
return ret;
}
+
+static char *
+unescape_newlines (void *ctx, const char *in, size_t len) {
+ size_t i,j;
+ /* removing escapes only makes things shorter */
+ char *out = talloc_zero_size (ctx, len+1);
+ for (i=0, j=0; i<len; i++) {
+ if (in[i] == '\\' && i < len - 1) {
+ switch (in[i+1]) {
+ case '\\':
+ i++;
+ out[j++] = '\\';
+ break;
+ case 'n':
+ i++;
+ out[j++] = '\n';
+ break;
+ default:
+ out[j++] = '\\';
+ }
+ } else {
+ out[j++] = in[i];
+ }
+ }
+ out[j]='\0';
+ return out;
+}
+
+notmuch_string_map_t *
+_notmuch_string_map_deserialize (void *ctx, const char *str)
+{
+ const char *tok = str;
+ const char *delim = "\n";
+ size_t tok_len = 0;
+ const char *pair [2];
+ size_t step = 0;
+
+ notmuch_string_map_t *map = _notmuch_string_map_create (ctx);
+
+ while ((tok = strtok_len_c (tok + tok_len, delim, &tok_len)) != NULL) {
+ pair[step] = unescape_newlines (ctx, tok, tok_len);
+ step++;
+ if (step == 2) {
+ step = 0;
+ _notmuch_string_map_append (map, pair[0], pair[1]);
+ }
+ }
+ return map;
+}
diff --git a/util/string-map.h b/util/string-map.h
index 9baf3530..22aa487c 100644
--- a/util/string-map.h
+++ b/util/string-map.h
@@ -40,4 +40,12 @@ _notmuch_string_map_iterator_destroy
(notmuch_string_map_iterator_t *iterator);
*/
const char *
_notmuch_string_map_serialize (void *ctx, notmuch_string_map_t *map);
+
+/*
+ * decode newline delimited string "key1\nval1\key2\nval2\n..." into a
string_map.
+ *
+ * \n decodes to newline and \\ decodes to \
+ */
+notmuch_string_map_t *
+_notmuch_string_map_deserialize (void *ctx, const char *str);
#endif
--
2.17.1
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