1 files changed, 40 insertions, 2 deletions
diff --git a/src/util.c b/src/util.c
index 044ce70..0a2ade8 100644
--- a/src/util.c
+++ b/src/util.c
@@ -108,7 +108,45 @@ char *strcopy(const char *string)
     return strslice(string, 0, strlen(string));
 }
 
-void unreachable(void)
+bool strfind(const char *string, const char *cases[])
 {
-    log_panic("Unreachable");
+    for (int i = 0; cases[i] != NULL; i++) {
+        if (strstr(string, cases[i]) != NULL)
+            return true;
+    }
+    return false;
+}
+
+size_t strprefix(const char *string, const char *prefix)
+{
+    size_t i = 0;
+    for ( ; prefix[i] != '\0'; i++) {
+        if (string[i] != prefix[i])
+            return 0;
+    }
+    return i;
+}
+
+size_t strcount(const char *string, const char *subs[])
+{
+    size_t count = 0;
+    for (int i = 0; string[i] != '\0'; ) {
+next:
+        for (int j = 0; subs[j] != NULL; j++) {
+            size_t pl = strprefix(string + i, subs[j]);
+            if (pl) {
+                i += pl;
+                count++;
+                goto next;
+            }
+        }
+        ++i;
+    }
+    return count;
+}
+
+char *strformat(const char *string, const char *keys[], const char *values[])
+{
+    // TODO
+    return NULL;
 }