X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=src%2Fparser.c;h=5b08be407b6999c0986a4599473c4521753235ef;hb=8a77ead5006867bb2572d80072645178fc74dbe4;hp=c85af8c212df7ef8325d3cb5d6f32e90921e7fbe;hpb=7fc5d3a79deb7bc3ac8faffb6d295c6c3a9154d2;p=smdp.git

diff --git a/src/parser.c b/src/parser.c
index c85af8c..5b08be4 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -161,7 +161,7 @@ deck_t *markdown_load(FILE *input) {
             }
         }
     }
-    cstring_delete(text);
+    (text->delete)(text);
 
     slide->lines = lc;
     deck->slides = sc;
@@ -174,21 +174,25 @@ 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;
+        }
     }
 
     slide = deck->slide;