JobCInterpreter.cxx

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// $Id: JobCInterpreter.cxx,v 1.6 2003/10/17 00:10:19 messier Exp $
//
// messier@huhepl.harvard.edu
#include "JobControl/JobCInterpreter.h"
#include "MessageService/MsgService.h"
#include "JobControl/JobCommand.h"

CVSID("$Id: JobCInterpreter.cxx,v 1.6 2003/10/17 00:10:19 messier Exp $");

//......................................................................

JobCInterpreter& operator<<(JobCInterpreter& jci, const char *c) 
{
  jci.Interp(c);
  return jci;
}

//......................................................................

JobCInterpreter::JobCInterpreter() : 
  fEchoCommand(false),fBuffer(""), fCmdIndx(0) { }

//......................................................................

JobCInterpreter::JobCInterpreter(bool echo) : 
  fEchoCommand(echo),fBuffer(""), fCmdIndx(0) { }

//......................................................................

JobCInterpreter::~JobCInterpreter() 
{
  // Delete the job commands in the history list
  vector<JobCommand*>::iterator itrend(fCmdList.end());
  vector<JobCommand*>::iterator itr;
  for (itr = fCmdList.begin(); itr != itrend; ++itr) {
    delete *itr;
  }
}

//......................................................................

void JobCInterpreter::ReadFile(const string& /*filename*/ ) { }

//......................................................................

void JobCInterpreter::EchoOn() { fEchoCommand = true; }

//......................................................................

void JobCInterpreter::EchoOff() { fEchoCommand = false; }

//......................................................................

JobCommand *JobCInterpreter::PopJobCommand() 
{
//======================================================================
// Return the next command in the list
//======================================================================
  if (fCmdIndx<fCmdList.size()) {
    JobCommand *jc = fCmdList[fCmdIndx++];
    if (jc) {
      if (fEchoCommand) MSG("JobC",Msg::kInfo) << "jobc> " << (*jc) << "\n";
      return jc;
    }
  }
  return 0;
}

//......................................................................

void JobCInterpreter::PushJobCommand(JobCommand *c) 
{
  fCmdList.push_back(c);
}

//......................................................................

void JobCInterpreter::Interp(const char *cmd)
{
  const char *c = cmd;

  // Skip lines starting with '#'
  if (*c == '#') return;
  
  // Skip leading white space
  if (fBuffer.length()==0) while (*c == ' ') ++c;
  
  // Add to current string buffer
  for (; *c!='\0'; ++c) { 
    // Don't read pass continuation flags
    if (*c=='\\') return;
    
    // Don't read pass comments
    if (*c=='/' && *(c+1)=='/') {
      if (fBuffer.length()>0) {
        JobCommand *jcmd = new JobCommand(fBuffer.c_str());
        this->PushJobCommand(jcmd);
        fBuffer = "";      
      }
      return;
    }
    
    // Parse what we have
    if (*c=='\n' || *c==';') {
      if (fBuffer.length()>0) {
        JobCommand *jcmd = new JobCommand(fBuffer.c_str());
        this->PushJobCommand(jcmd);
        fBuffer = "";      
      }
    }
    else {
      if (*c == ' ' && fBuffer.length()==0) continue;
      else fBuffer += (*c);
    }
  }
}

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