Moved other yql/essentials libs YQL-19206

init
commit_hash:7d4c435602078407bbf20dd3c32f9c90d2bbcbc0

1 files changed, 28 insertions, 0 deletions

diff --git a/yql/essentials/core/url_preprocessing/pattern_group.cpp b/yql/essentials/core/url_preprocessing/pattern_group.cpp
new file mode 100644
index 00000000000..8185a84a7f1
--- /dev/null
+++ b/yql/essentials/core/url_preprocessing/pattern_group.cpp
@@ -0,0 +1,28 @@
+#include "pattern_group.h"
+
+namespace NYql {
+
+void TPatternGroup::Add(const TString& pattern, const TString& alias) {
+    auto it = CompiledPatterns.find(pattern);
+    if (it != CompiledPatterns.end()) {
+        return;
+    }
+
+    CompiledPatterns.emplace(pattern, std::make_pair(TRegExMatch(pattern), alias));
+}
+
+bool TPatternGroup::IsEmpty() const {
+    return CompiledPatterns.empty();
+}
+
+TMaybe<TString> TPatternGroup::Match(const TString& s) const {
+    for (auto& p : CompiledPatterns) {
+        if (p.second.first.Match(s.c_str())) {
+            return p.second.second;
+        }
+    }
+
+    return Nothing();
+}
+
+}