Region control

The region directives are used to explicitly mark regions of source code. pp-region :: pp-start-regionconditional-section pp-end-regionpp-start-region :: whitespace#whitespace region pp-messagepp-end-region :: whitespace#whitespace endregion pp-message
No semantic meaning is attached to a region; regions are intended for use by the programmer or by automated tools to mark a section of source code. The message specified in a #region or #endregion directive likewise has no semantic meaning; it merely serves to identify the region. Matching #region and #endregion directives may have different pp-messages.
The lexical processing of a region: #region ... #endregion corresponds exactly to the lexical processing of a conditional compilation directive of the form: #if true ... #endif