From 166c3167bc608a63e2312930a9b722f8d697d2c5 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 4 May 2018 23:42:51 +0300
Subject: Add support for standard version constraint shortcut operators

---
 libbutl/standard-version.mxx | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'libbutl/standard-version.mxx')

diff --git a/libbutl/standard-version.mxx b/libbutl/standard-version.mxx
index b161063..fa74e01 100644
--- a/libbutl/standard-version.mxx
+++ b/libbutl/standard-version.mxx
@@ -157,12 +157,14 @@ LIBBUTL_MODEXPORT namespace butl
     // Create empty version.
     //
     standard_version () {} // = default; @@ MOD VC
-
-  private:
-    void
-    parse_snapshot (const std::string&, std::size_t&);
   };
 
+  // Try to parse a string as a standard version returning nullopt if invalid.
+  //
+  LIBBUTL_SYMEXPORT optional<standard_version>
+  parse_standard_version (const std::string&,
+                          standard_version::flags = standard_version::none);
+
   inline bool
   operator< (const standard_version& x, const standard_version& y) noexcept
   {
@@ -220,6 +222,7 @@ LIBBUTL_MODEXPORT namespace butl
   // The build2 "standard version" constraint:
   //
   // ('==' | '>' | '<' | '>=' | '<=') <version>
+  // ('^' | '~') <version>
   // ('(' | '[') <version> <version> (')' | ']')
   //
   struct LIBBUTL_SYMEXPORT standard_version_constraint
-- 
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