if (/(\{exhibit\})/) { $loc_exhibit_txt = $loc_observation_model->__exhibit_verb_function($k-1+$gl_exhibit_verb_marker_idx, $gl_language_country, "G"); $loc_end_pos = pos($_) - length($1); $loc_string_out = $loc_string_out . substr($_,$loc_start_pos,$loc_end_pos-$loc_start_pos); # Add variable $loc_string_out = $loc_string_out . $loc_exhibit_txt ; # Add variable $loc_start_pos=pos($_); }