Jouni's Incremental BWT integrated into TextCollection

[SXSI/TextCollection.git] / incbwt / misc / utils.cpp

diff --git a/incbwt/misc/utils.cpp b/incbwt/misc/utils.cpp
new file mode 100644 (file)
index 0000000..ae49883
--- /dev/null
+++ b/incbwt/misc/utils.cpp
@@ -0,0 +1,55 @@
+#include "utils.h"
+
+
+namespace CSA
+{
+
+
+std::streamoff
+fileSize(std::ifstream& file)
+{
+  std::streamoff curr = file.tellg();
+
+  file.seekg(0, std::ios::end);
+  std::streamoff size = file.tellg();
+  file.seekg(0, std::ios::beg);
+  size -= file.tellg();
+
+  file.seekg(curr, std::ios::beg);
+  return size;
+}
+
+std::streamoff
+fileSize(std::ofstream& file)
+{
+  std::streamoff curr = file.tellp();
+
+  file.seekp(0, std::ios::end);
+  std::streamoff size = file.tellp();
+  file.seekp(0, std::ios::beg);
+  size -= file.tellp();
+
+  file.seekp(curr, std::ios::beg);
+  return size;
+}
+
+std::ostream&
+operator<<(std::ostream& stream, pair_type data)
+{
+  return stream << "(" << data.first << ", " << data.second << ")";
+}
+
+void
+readRows(std::ifstream& file, std::list<std::string>& rows, bool skipEmptyRows)
+{
+  while(file)
+  {
+    std::string buf;
+    std::getline(file, buf);
+    if(skipEmptyRows && buf.length() == 0) { continue; }
+    rows.push_back(buf);
+  }
+}
+
+
+} // namespace CSA