refactor: introduce single-separator split helper `SplitString`

This helper uses spanparsing::Split internally and enables to replace
all calls to boost::split where only a single separator is passed.

Co-authored-by: Martin Ankerl <Martin.Ankerl@gmail.com>
Co-authored-by: MarcoFalke <falke.marco@gmail.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/src/util/spanparsing.h b/src/util/spanparsing.h
index fa2e698e6d..ebec8714a7 100644
--- a/src/util/spanparsing.h
+++ b/src/util/spanparsing.h
@@ -43,7 +43,22 @@ Span<const char> Expr(Span<const char>& sp);
  * Note that this function does not care about braces, so splitting
  * "foo(bar(1),2),3) on ',' will return {"foo(bar(1)", "2)", "3)"}.
  */
-std::vector<Span<const char>> Split(const Span<const char>& sp, char sep);
+template <typename T = Span<const char>>
+std::vector<T> Split(const Span<const char>& sp, char sep)
+{
+    std::vector<T> ret;
+    auto it = sp.begin();
+    auto start = it;
+    while (it != sp.end()) {
+        if (*it == sep) {
+            ret.emplace_back(start, it);
+            start = it + 1;
+        }
+        ++it;
+    }
+    ret.emplace_back(start, it);
+    return ret;
+}
 
 } // namespace spanparsing