parse_primitives.h

/*
Copyright (c) 2009 Yahoo! Inc.  All rights reserved.  The copyrights
embodied in the content of this file are licensed under the BSD
(revised) open source license
*/

#ifndef PP
#define PP

#include "v_array.h"
#include<iostream>
using namespace std;

struct substring {
  char *start;
  char *end;
};

//chop up the string into a v_array of substring.
void tokenize(char delim, substring s, v_array<substring> &ret);

inline char* safe_index(char *start, char v, char *max)
{
  while (start != max && *start != v)
    start++;
  return start;
}

inline void print_substring(substring s)
{
  cout.write(s.start,s.end - s.start);
}

inline float float_of_substring(substring s)
{
  return atof(string(s.start, s.end-s.start).c_str());
}

inline float zero_copy_float_of_substring(substring s)
{
  char temp = *s.end;
  *s.end = '\0';
  float f = atof(s.start);
  *s.end = temp;
  return f;
}

inline double double_of_substring(substring s)
{
  return atof(string(s.start, s.end-s.start).c_str());
}

inline int int_of_substring(substring s)
{
   return atoi(string(s.start, s.end-s.start).c_str());
}

inline unsigned long ulong_of_substring(substring s)
{
  return strtoul(string(s.start, s.end-s.start).c_str(),NULL,10);
}

inline unsigned long ss_length(substring s)
{
  return (s.end - s.start);
}

#endif