X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=src%2Fparser.c;h=b4006109bd847194052b70cabb3cf9111e9da64a;hb=7b546f2a11460bed09b61116c8be38f8decf0440;hp=760ef4b49ece5956d83e44188b88fc5be87be302;hpb=5f369c826ac0ca4989892b3691f66d0ac73679f3;p=smdp.git

diff --git a/src/parser.c b/src/parser.c
index 760ef4b..b400610 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -161,6 +161,7 @@ deck_t *markdown_load(FILE *input) {
             }
         }
     }
+    (text->delete)(text);
 
     slide->lines = lc;
     deck->slides = sc;
@@ -173,21 +174,29 @@ deck_t *markdown_load(FILE *input) {
         deck->header = line;
 
         // find first non-header line
-        while(line->text->size > 0 && line->text->text[0] == '%') {
+        while(line && line->text->size > 0 && line->text->text[0] == '%') {
             hc++;
             line = line->next;
         }
 
-        // split linked list
-        line->prev->next = NULL;
-        line->prev = NULL;
+        // only split header if any non-header line is found
+        if(line) {
 
-        // remove header lines from slide
-        deck->slide->line = line;
+            // split linked list
+            line->prev->next = NULL;
+            line->prev = NULL;
 
-        // adjust counts
-        deck->headers += hc;
-        deck->slide->lines -= hc;
+            // remove header lines from slide
+            deck->slide->line = line;
+
+            // adjust counts
+            deck->headers += hc;
+            deck->slide->lines -= hc;
+        } else {
+
+            // remove header from deck
+            deck->header = NULL;
+        }
     }
 
     slide = deck->slide;