<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def x_build_action( self, node ):
        '''
        Given a build action log, process into the corresponding test log and
        specific test log sub-part.
        '''
        action_node = node
        name = self.get_child(action_node,tag='name')
        if name:
            name = self.get_data(name)
            #~ Based on the action, we decide what sub-section the log
            #~ should go into.
            action_type = None
            if re.match('[^%]+%[^.]+[.](compile)',name):
                action_type = 'compile'
            elif re.match('[^%]+%[^.]+[.](link|archive)',name):
                action_type = 'link'
            elif re.match('[^%]+%testing[.](capture-output)',name):
                action_type = 'run'
            elif re.match('[^%]+%testing[.](expect-failure|expect-success)',name):
                action_type = 'result'
            else:
                # TODO: Enable to see what other actions can be included in the test results.
                # action_type = None
                action_type = 'other'
            #~ print "+   [%s] %s %s :: %s" %(action_type,name,'','')
            if action_type:
                #~ Get the corresponding test.
                (target,test) = self.get_test(action_node,type=action_type)
                #~ Skip action that have no corresponding test as they are
                #~ regular build actions and don't need to show up in the
                #~ regression results.
                if not test:
                    ##print "??? [%s] %s %s :: %s" %(action_type,name,target,test)
                    return None
                ##print "+++ [%s] %s %s :: %s" %(action_type,name,target,test)
                #~ Collect some basic info about the action.
                action = {
                    'command' : self.get_action_command(action_node,action_type),
                    'output' : self.get_action_output(action_node,action_type),
                    'info' : self.get_action_info(action_node,action_type)
                    }
                #~ For the test result status we find the appropriate node
                #~ based on the type of test. Then adjust the result status
                #~ accordingly. This makes the result status reflect the
                #~ expectation as the result pages post processing does not
                #~ account for this inversion.
                action['type'] = action_type
                if action_type == 'result':
                    if re.match(r'^compile',test['test-type']):
                        action['type'] = 'compile'
                    elif re.match(r'^link',test['test-type']):
                        action['type'] = 'link'
                    elif re.match(r'^run',test['test-type']):
                        action['type'] = 'run'
                #~ The result sub-part we will add this result to.
                if action_node.getAttribute('status') == '0':
                    action['result'] = 'succeed'
                else:
                    action['result'] = 'fail'
                # Add the action to the test.
                test['actions'].append(action)
                # Set the test result if this is the result action for the test.
                if action_type == 'result':
                    test['result'] = action['result']
        return None