function [total_expression,event_expression,condition_expression] = find_cond_expr(sfdata,cond_expr,event_expr,sf_machine)%This function will take the condition expression and represent it as%a logical function in terms of the PTHB'sdata=sfdata{sf_machine}.InputData;condition_expression=cond_expr;if ~isempty(cond_expr)    if cond_expr(1)==' '|cond_expr(length(cond_expr))==' '        error('Stateflow condition xpressions cannot have leading or trailing spaces.')    endendtotal_expression=cond_expr;ok=0;for i=1:length(data)   name=data{i}.Name;   where=findstr(name,cond_expr);   if (~isempty(where))&length(cond_expr)>=length(name)   replace_at=[];for n=where      %The following code only checks to see if the character before and after the      %matched strings are non-characters.  This protects against the following case:      %cond_expr='region1==1'  and sfdata.name='region'      %******************************************************************************   if n>1&(n+length(name))<=length(cond_expr)      if ~(isletter(cond_expr(n-1))|isletter(cond_expr(n+length(name)))|                ~isempty(findstr(cond_expr(n-1),'0123456789'))|                ~isempty(findstr(cond_expr(n+length(name)),'0123456789')))% moved% moved         replace_at=[replace_at n];      end   elseif (n+length(name))<=length(cond_expr)		   if ~(isletter(cond_expr(n+length(name)))|~isempty(findstr(cond_expr(n+length(name)),'0123456789')))            replace_at=[replace_at n];         end   elseif n>1      if ~(isletter(cond_expr(n-1))|~isempty(findstr(cond_expr(n-1),'0123456789')))         replace_at=[replace_at n];      end   end %end if where( 		%******************************************************************************% movedend %end for n=where    %Perform the all replacements necessary for the 'name' condition    index_old=1;    condition_expression_new=[];    for j=1:length(replace_at)            condition_expression_new = [condition_expression_new condition_expression(index_old:replace_at(j)-1)];            condition_expression_new = [condition_expression_new data{i}.Expression];            index_old=replace_at(j)+length(name);    end    condition_expression_new = [condition_expression_new condition_expression(index_old:length(condition_expression))];    condition_expression = condition_expression_new;    cond_expr=condition_expression;end %end if (~isempty % moved  end %end for i=1: % moved  event_expression=[];  %Now concatenate the event expression onto the condition expression:  for i=1:length(sfdata{sf_machine}.InputEvent)     input_expression=sfdata{sf_machine}.InputEvent{i}.Expression;     input_event_name=sfdata{sf_machine}.InputEvent{i}.Name;     if strcmp(deblank(input_event_name),deblank(event_expr))        if ~isempty(condition_expression)        	total_expression=strcat('(',input_expression,')&(',condition_expression,')');        else         total_expression=input_expression;        end        event_expression=input_expression;         break;     end  endreturn% -----------------------------------------------------------------------------