remove unused and broken function

  return (pos >= 0);

}

/* utility function to avoid code repetition when parsing args */

int utils::cfvarg(std::string mode, const char *arg, char *&cfv_id)

{

  int rv = utils::NONE;

  cfv_id = NULL;

  if (!arg) return rv;

  if (utils::strmatch(arg,std::string("^[") + mode + "]_")) {

    if (*arg == 'c') rv = utils::COMPUTE;

    else if (*arg == 'f') rv = utils::FIX;

    else if (*arg == 'v') rv = utils::VARIABLE;

    else return rv;             // should not happen

    arg += 2;

    int n = strlen(arg)+1;

    cfv_id = new char[n];

    strcpy(cfv_id,arg);

  }

  return rv;

}

/** \brief try to detect pathname from FILE pointer. Currently only supported on Linux, otherwise will report "(unknown)".

 *

 *  \param buf  storage buffer for pathname. output will be truncated if not large enough

     */

    bool strmatch(std::string text, std::string pattern);

    /** Categories of special arguments for cfvarg() function

     *

     * Enum starts from 100 to avoid conflicts with other local define flags

     */

    enum {NONE=100,              /// does not match any category

          COMPUTE,               /// processed a compute

          FIX,                   /// processed a fix

          VARIABLE               /// processed a variable

    };

    /** \brief Convenience function to process 'c_', 'f_', and 'v_' arguments

     *

     *  \param mode types to search for. 1-3 char string from 'c', 'f', or 'v'

     *  \param arg  argument string to test against the prefixes

     *  \param cfv_id name or ID of the compute, fix, or variable

     *  \return utils::COMPUTE, utils::FIX, utils::VARIABLE or utils::NONE

     */

    int cfvarg(std::string mode, const char *arg, char *&cfv_id);

    /** \brief safe wrapper around fgets() which aborts on errors

     *  or EOF and prints a suitable error message to help debugging

     *