1 files changed, 33 insertions, 15 deletions
diff --git a/src/VersionParser.cpp b/src/VersionParser.cpp
index eccd109..2b7936a 100644
--- a/src/VersionParser.cpp
+++ b/src/VersionParser.cpp
@@ -196,8 +196,16 @@ namespace sibs
 
         if(token == VersionToken::END_OF_FILE)
         {
-            if(!versionRange.startDefined)
+            if(!versionRange.startDefined && !versionRange.endDefined)
                 return Result<PackageVersionRange>::Err("version can't be empty");
+
+            if(!versionRange.startDefined) {
+                versionRange.start.major = 0;
+                versionRange.start.minor = 0;
+                versionRange.start.patch = 0;
+                versionRange.startDefined = true;
+                versionRange.startOperation = VersionOperation::GREATER_EQUAL;
+            }
             
             if(versionRange.startOperation == VersionOperation::NONE)
             {
@@ -264,40 +272,50 @@ namespace sibs
         }
         else if(token == VersionToken::OPERATION)
         {
-            versionRange.startOperation = tokenizer.operation;
+            VersionOperation operation = tokenizer.operation;
             token = tokenizer.next();
             if(token == VersionToken::VERSION_NUMBER)
             {
-                versionRange.start = tokenizer.version;
-                versionRange.startDefined = true;
-                switch(versionRange.startOperation)
+                token = tokenizer.next();
+                switch(operation)
                 {
                     case VersionOperation::LESS:
                     {
-                        token = VersionToken::INVALID;
-                        tokenizer.errMsg = "Unexpected version end when start version is expected to less than ";
-                        tokenizer.errMsg += versionRange.start.toString();
+                        versionRange.end = tokenizer.version;
+                        versionRange.endDefined = true;
+                        versionRange.endOperation = operation;
                         return token;
                     }
                     case VersionOperation::LESS_EQUAL:
                     {
-                        token = VersionToken::INVALID;
-                        tokenizer.errMsg = "Unexpected version end when start version is expected to be less or equal to ";
-                        tokenizer.errMsg += versionRange.start.toString();
+                        versionRange.end = tokenizer.version;
+                        versionRange.endDefined = true;
+                        versionRange.endOperation = operation;
                         return token;
                     }
                     case VersionOperation::EQUAL:
                     {
-                        token = VersionToken::INVALID;
-                        tokenizer.errMsg = "Unexpected version end when start version is expected to be exactly ";
-                        tokenizer.errMsg += versionRange.start.toString();
+                        versionRange.start = tokenizer.version;
+                        versionRange.startDefined = true;
+                        versionRange.startOperation = operation;
                         return token;
                     }
+                    case VersionOperation::GREATER:
+                    {
+                        versionRange.start = tokenizer.version;
+                        versionRange.startDefined = true;
+                        versionRange.startOperation = operation;
+                    }
+                    case VersionOperation::GREATER_EQUAL:
+                    {
+                        versionRange.start = tokenizer.version;
+                        versionRange.startDefined = true;
+                        versionRange.startOperation = operation;
+                    }
                     default:
                         break;
                 }
                 
-                token = tokenizer.next();
                 if(token == VersionToken::AND)
                 {
                     return parseEnd();