1 files changed, 9 insertions, 1 deletions
diff --git a/src/libutil/parser.hh b/src/libutil/parser.hh
index a6a83ce89..d19d7d8ed 100644
--- a/src/libutil/parser.hh
+++ b/src/libutil/parser.hh
@@ -3,13 +3,15 @@
 #include <optional>
 #include <string_view>
 
+#include "util.hh"
+
 namespace nix {
 
 // If `separator` is found, we return the portion of the string before the
 // separator, and modify the string argument to contain only the part after the
 // separator. Otherwise, wer return `std::nullopt`, and we leave the argument
 // string alone.
-static inline std::optional<std::string_view> splitPrefix(std::string_view & string, char separator) {
+static inline std::optional<std::string_view> splitPrefixTo(std::string_view & string, char separator) {
     auto sepInstance = string.find(separator);
 
     if (sepInstance != std::string_view::npos) {
@@ -21,5 +23,11 @@ static inline std::optional<std::string_view> splitPrefix(std::string_view & str
     return std::nullopt;
 }
 
+static inline bool splitPrefix(std::string_view & string, std::string_view prefix) {
+    bool res = hasPrefix(string, prefix);
+    if (res)
+        string.remove_prefix(prefix.length());
+    return res;
+}
 
 }