1 files changed, 40 insertions, 0 deletions
diff --git a/libstorycode/narrative.c b/libstorycode/narrative.c
index 67fe9e9..cd4b10e 100644
--- a/libstorycode/narrative.c
+++ b/libstorycode/narrative.c
@@ -589,6 +589,45 @@ Slide *narrative_get_slide_by_number(Narrative *n, int pos)
 }
 
 
+/* Return the text between item p1/offset o1 and p2/o2 */
+char *narrative_range_as_text(Narrative *n, int p1, size_t o1, int p2, size_t o2)
+{
+	int i;
+	char *t;
+	size_t len = 0;
+	size_t size = 256;
+
+	t = malloc(size);
+	if ( t == NULL ) return NULL;
+
+	t[0] = '\0';
+
+	for ( i=p1; i<=p2; i++ ) {
+		int r;
+		if ( !narrative_item_is_text(n, i) ) continue;
+		for ( r=0; r<n->items[i].n_runs; r++ ) {
+			size_t this_len = strlen(n->items[i].runs[r].text);
+			if ( this_len + len + 2 > size ) {
+				char *nt;
+				size += 256 + this_len;
+				nt = realloc(t, size);
+				if ( nt == NULL ) {
+					fprintf(stderr, "Failed to allocate\n");
+					return NULL;
+				}
+				t = nt;
+			}
+			memcpy(&t[len], n->items[i].runs[r].text, this_len+1);
+			len += this_len;
+		}
+		t[len++] = '\n';
+		t[len] = '\0';
+	}
+
+	return t;
+}
+
+
 static void debug_runs(struct narrative_item *item)
 {
 	int j;
@@ -597,6 +636,7 @@ static void debug_runs(struct narrative_item *item)
 	}
 }
 
+
 void narrative_debug(Narrative *n)
 {
 	int i;