Small fix and utilities

components/core/src/glt/Grep.cpp

@@ -469,7 +469,7 @@ void find_boundaries(
 
     // Now we have the left boundary and right boundary, try to filter out the variables;
     // var_begin_ix is an inclusive interval
-    size_t logtype_variable_num = logtype_entry->get_num_variables();
+    auto const logtype_variable_num = logtype_entry->get_num_variables();
     ir::VariablePlaceholder var_placeholder;
     var_begin_ix = 0;
     for(size_t var_ix = 0; var_ix < logtype_variable_num; var_ix++) {
@@ -496,7 +496,7 @@ void find_boundaries(
             break;
         }
     }
-    if (var_end_ix <= var_begin_ix) {
+    if (var_end_ix < var_begin_ix) {
         printf("end index %lu is smaller than begin index %lu\n", var_end_ix, var_begin_ix);
         throw;
     }

components/core/src/glt/LogTypeDictionaryEntry.cpp

@@ -202,4 +202,33 @@ void LogTypeDictionaryEntry::read_from_file(streaming_compression::Decompressor&
         throw OperationFailed(error_code, __FILENAME__, __LINE__);
     }
 }
+
+string LogTypeDictionaryEntry::get_human_readable_value() const {
+    string human_readable_value;
+
+    size_t constant_begin_pos = 0;
+    for (size_t placeholder_ix = 0; placeholder_ix < get_num_placeholders(); ++placeholder_ix) {
+        VariablePlaceholder placeholder;
+        size_t placeholder_pos = get_placeholder_info(placeholder_ix, placeholder);
+
+        // Add the constant that's between the last variable and this one, with newlines escaped
+        human_readable_value.append(m_value, constant_begin_pos, placeholder_pos - constant_begin_pos);
+
+        if (VariablePlaceholder::Dictionary == placeholder) {
+            human_readable_value += "v";
+        } else if (VariablePlaceholder::Float == placeholder) {
+            human_readable_value += "f";
+        } else if (VariablePlaceholder::Integer == placeholder) {
+            human_readable_value += "i";
+        }
+        // Move past the variable delimiter
+        constant_begin_pos = placeholder_pos + 1;
+    }
+    // Append remainder of value, if any
+    if (constant_begin_pos < m_value.length()) {
+        human_readable_value.append(m_value, constant_begin_pos, string::npos);
+    }
+    return human_readable_value;
+}
+
 }  // namespace glt

components/core/src/glt/LogTypeDictionaryEntry.hpp

@@ -179,6 +179,12 @@ class LogTypeDictionaryEntry : public DictionaryEntry<logtype_dictionary_id_t> {
      */
     void read_from_file(streaming_compression::Decompressor& decompressor);
 
+    /**
+     * Generate a human readable version of value.
+     * @param decompressor
+     */
+    std::string get_human_readable_value() const;
+
 private:
     // Variables
     std::vector<size_t> m_placeholder_positions;