added peekchrbuf to buf

2 files changed, 8 insertions, 0 deletions

diff --git a/buf.c b/buf.c
index a219773..7e270c3 100644
--- a/buf.c
+++ b/buf.c
@@ -110,3 +110,10 @@ char* peekstrbuf(buf* buffer, size_t loc, size_t len){
     }
     return str;
 }
+char peekchrbuf(buf* buffer, size_t loc){
+    buf_node* start;
+    loc += buffer->pop;
+    for (start = buffer->tail; loc>buffer->cap; loc -= buffer->cap)
+        start = start->next;
+    return start->text[loc];
+}
diff --git a/buf.h b/buf.h
index d142148..9b2a996 100644
--- a/buf.h
+++ b/buf.h
@@ -16,5 +16,6 @@ void inschrbuf(buf* buffer, char chr);
 void insstrbuf(buf* buffer, char* str);
 
 char* peekstrbuf(buf* buffer, size_t loc, size_t len);
+char peekchrbuf(buf* buffer, size_t loc);
 
 #endif