<!-- ##### SECTION Title ##### -->
util

<!-- ##### SECTION Short_Description ##### -->


<!-- ##### SECTION Long_Description ##### -->
<para>

</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### MACRO block_alloc ##### -->
<para>

</para>

@x: 


<!-- ##### MACRO block_free ##### -->
<para>

</para>

@x: 
@y: 


<!-- ##### FUNCTION block_release_all ##### -->
<para>

</para>



<!-- ##### FUNCTION block_trash_check ##### -->
<para>

</para>



<!-- ##### FUNCTION block_check ##### -->
<para>

</para>

@p: 


<!-- ##### FUNCTION purge_chars ##### -->
<para>

</para>

@src: 
@to_go: 


<!-- ##### FUNCTION overlapping_words ##### -->
<para>

</para>

@s1: 
@s2: 
@max_words: 
@Returns: 


