4 files changed, 9 insertions, 12 deletions
diff --git a/definitions.c b/definitions.c
index c60df0d..be5f51d 100644
--- a/definitions.c
+++ b/definitions.c
@@ -35,10 +35,8 @@ def_t *load_grammar(def_t *defs, file_t *f)
     while (src < f->end) {
         const char *name = src;
         src = after_name(name);
-        if (src <= name) {
-            fprint_line(stdout, f, name, src, "Invalid name for definition: %s", name);
-            exit(EXIT_FAILURE);
-        }
+        if (src <= name)
+            file_err(f, name, src, "Invalid name for definition: %s", name);
         size_t namelen = (size_t)(src - name);
         if (!matchchar(&src, ':'))
             errx(EXIT_FAILURE, "Expected ':' in definition");
@@ -50,10 +48,8 @@ def_t *load_grammar(def_t *defs, file_t *f)
         if (matchchar(&src, ';'))
             src = after_spaces(src);
     }
-    if (src < f->end) {
-        fprint_line(stderr, f, src, NULL, "Invalid BP pattern");
-        exit(EXIT_FAILURE);
-    }
+    if (src < f->end)
+        file_err(f, src, NULL, "Invalid BP pattern");
     return defs;
 }
 
diff --git a/files.h b/files.h
index 63b1c0f..b82ead4 100644
--- a/files.h
+++ b/files.h
@@ -6,6 +6,9 @@
 
 #include <stdbool.h>
 #include <stdio.h>
+#include <unistd.h>
+
+#define file_err(f, ...) do { fprint_line(stderr, f, __VA_ARGS__); exit(EXIT_FAILURE); } while(false)
 
 struct allocated_pat_s; // declared in types.h
 
diff --git a/match.c b/match.c
index aac0520..e675679 100644
--- a/match.c
+++ b/match.c
@@ -527,8 +527,7 @@ static match_t *match(def_t *defs, file_t *f, const char *str, pat_t *pat, bool
             return m;
         }
         default: {
-            fprintf(stderr, "Unknown pattern type: %d", pat->type);
-            exit(EXIT_FAILURE);
+            errx(EXIT_FAILURE, "Unknown pattern type: %d", pat->type);
             return NULL;
         }
     }
diff --git a/pattern.c b/pattern.c
index 5ecd774..99dd12d 100644
--- a/pattern.c
+++ b/pattern.c
@@ -10,11 +10,10 @@
 #include <unistd.h>
 
 #include "definitions.h"
+#include "files.h"
 #include "pattern.h"
 #include "utils.h"
 
-#define file_err(f, ...) do { fprint_line(stderr, f, __VA_ARGS__); exit(EXIT_FAILURE); } while(false)
-
 __attribute__((nonnull))
 static pat_t *expand_chain(file_t *f, pat_t *first);
 __attribute__((nonnull))