X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=src%2Fparser.c;h=f835a5c6fe2d47dcb99fa9dc2dc22fb5d4f65115;hb=aaef0d22541650ed73e094363e1886943ca035d3;hp=9721bd4dd63c585862c4e6926762f53cfd2099c9;hpb=3ee3024232ec7ce4327293afd3f259c0179956ac;p=smdp.git

diff --git a/src/parser.c b/src/parser.c
index 9721bd4..f835a5c 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -82,7 +82,7 @@ deck_t *markdown_load(FILE *input) {
             } else {
 
                 // if slide ! has line
-                if(!slide->line) {
+                if(!slide->line || !line) {
 
                     // create new line
                     line = new_line();
@@ -174,21 +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;