1 files changed, 113 insertions, 0 deletions
diff --git a/library/cpp/getopt/small/last_getopt_opt.cpp b/library/cpp/getopt/small/last_getopt_opt.cpp
new file mode 100644
index 0000000000..9a99437f4b
--- /dev/null
+++ b/library/cpp/getopt/small/last_getopt_opt.cpp
@@ -0,0 +1,113 @@
+#include "last_getopt_opt.h"
+
+#include <util/stream/format.h>
+#include <util/string/escape.h>
+#include <util/generic/ylimits.h>
+#include <util/generic/utility.h>
+#include <util/generic/algorithm.h>
+#include <ctype.h>
+
+namespace NLastGetopt {
+    static const TStringBuf ExcludedShortNameChars = "= -\t\n";
+    static const TStringBuf ExcludedLongNameChars = "= \t\n";
+
+    bool TOpt::NameIs(const TString& name) const {
+        for (const auto& next : LongNames_) {
+            if (next == name)
+                return true;
+        }
+        return false;
+    }
+
+    bool TOpt::CharIs(char c) const {
+        for (auto next : Chars_) {
+            if (next == c)
+                return true;
+        }
+        return false;
+    }
+
+    char TOpt::GetChar() const {
+        ;
+        if (Chars_.empty())
+            ythrow TConfException() << "no char for option " << this->ToShortString();
+        return Chars_.at(0);
+    }
+
+    char TOpt::GetCharOr0() const {
+        if (Chars_.empty())
+            return 0;
+        return GetChar();
+    }
+
+    TString TOpt::GetName() const {
+        ;
+        if (LongNames_.empty())
+            ythrow TConfException() << "no name for option " << this->ToShortString();
+        return LongNames_.at(0);
+    }
+
+    bool TOpt::IsAllowedShortName(unsigned char c) {
+        return isprint(c) && TStringBuf::npos == ExcludedShortNameChars.find(c);
+    }
+
+    TOpt& TOpt::AddShortName(unsigned char c) {
+        ;
+        if (!IsAllowedShortName(c))
+            throw TUsageException() << "option char '" << c << "' is not allowed";
+        Chars_.push_back(c);
+        return *this;
+    }
+
+    bool TOpt::IsAllowedLongName(const TString& name, unsigned char* out) {
+        for (size_t i = 0; i != name.size(); ++i) {
+            const unsigned char c = name[i];
+            if (!isprint(c) || TStringBuf::npos != ExcludedLongNameChars.find(c)) {
+                if (nullptr != out)
+                    *out = c;
+                return false;
+            }
+        }
+        return true;
+    }
+
+    TOpt& TOpt::AddLongName(const TString& name) {
+        ;
+        unsigned char c = 0;
+        if (!IsAllowedLongName(name, &c))
+            throw TUsageException() << "option char '" << c
+                                     << "' in long '" << name << "' is not allowed";
+        LongNames_.push_back(name);
+        return *this;
+    }
+
+    namespace NPrivate {
+        TString OptToString(char c);
+
+        TString OptToString(const TString& longOption);
+    }
+
+    TString TOpt::ToShortString() const {
+        ;
+        if (!LongNames_.empty())
+            return NPrivate::OptToString(LongNames_.front());
+        if (!Chars_.empty())
+            return NPrivate::OptToString(Chars_.front());
+        return "?";
+    }
+
+    void TOpt::FireHandlers(const TOptsParser* parser) const {
+        for (const auto& handler : Handlers_) {
+            handler->HandleOpt(parser);
+        }
+    }
+
+    TOpt& TOpt::IfPresentDisableCompletionFor(const TOpt& opt) {
+        if (opt.GetLongNames()) {
+            IfPresentDisableCompletionFor(opt.GetName());
+        } else {
+            IfPresentDisableCompletionFor(opt.GetChar());
+        }
+        return *this;
+    }
+}