[parser] Fix bug in scanner when rewinding from end of file.

c-lipka · c-lipka · commit a065f44f1422 · 2019-01-12T16:10:18.000+01:00
diff --git a/source/parser/scanner.cpp b/source/parser/scanner.cpp
@@ -675,6 +675,7 @@ bool Scanner::BufferedSource::SetInputStream(StreamPtr pStream, POV_OFF_T pos)
         // Just advance/rewind the current buffer position accordingly.
         mBuffer.AdvanceTo(pos - mBase);
         POV_PARSER_ASSERT(!mBuffer.IsExhausted());
+        mExhausted = false;
         return true;
     }
     else

Original file line number	Diff line number	Diff line change
`@@ -675,6 +675,7 @@ bool Scanner::BufferedSource::SetInputStream(StreamPtr pStream, POV_OFF_T pos)`
`675`	`675`	`// Just advance/rewind the current buffer position accordingly.`
`676`	`676`	`mBuffer.AdvanceTo(pos - mBase);`
`677`	`677`	`POV_PARSER_ASSERT(!mBuffer.IsExhausted());`
	`678`	`+ mExhausted = false;`
`678`	`679`	`return true;`
`679`	`680`	`}`
`680`	`681`	`else`