add non_format_len() function

2 files changed, 27 insertions, 0 deletions

diff --git a/src/lib/core/include/utils.h b/src/lib/core/include/utils.h
index c1ee513..22835ee 100644
--- a/src/lib/core/include/utils.h
+++ b/src/lib/core/include/utils.h
@@ -483,4 +483,11 @@ int str_to_timeout(char *s);
 const char *get_random_generator_file();
 int get_random_bytes(char *result, size_t maxlen);
 
+/**
+ * Get length of `s` as if any formatters are not present
+ * @param s format string
+ * @return length
+ */
+int non_format_len(const char *s);
+
 #endif //STASIS_UTILS_H
diff --git a/src/lib/core/utils.c b/src/lib/core/utils.c
index b70b713..4f06d14 100644
--- a/src/lib/core/utils.c
+++ b/src/lib/core/utils.c
@@ -1219,3 +1219,23 @@ int get_random_bytes(char *result, size_t maxlen) {
     result[bytes ? bytes - 1 : 0] = '\0';
     return 0;
 }
+
+int non_format_len(const char *s) {
+    int len = 0;
+    int until_space = 0;
+    for (size_t i = 0; i < strlen(s); i++) {
+        if (until_space && isspace(s[i])) {
+            until_space = 0;
+        }
+        if (until_space && !isspace(s[i])) {
+            continue;
+        }
+        if (s[i] == '%') {
+            until_space = 1;
+            continue;
+        }
+        len++;
+    }
+    return len;
+}
+