//  Cini is a command line tool to parse ini files
//  Copyright (C) 2018  Aaron Ball <nullspoon@oper.io>
// 
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
// 
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
// 
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include "str.h"
void trim(char* str, char* out) {
  int start = 0;
  int end   = 0;
  int i     = 0;

  // Read backwards
  for(i = strlen(str); i >= 0; i--) {
    if(str[i] != ' '
        && str[i] != '\0'
        && str[i] != '\r'
        && str[i] != '\n'
        && str[i] != '\t') {
      // Once we find the first non-whitespace char, insert \0 after
      end = i;
      break;
    }
  }

  // Read forwards to find first non-whitespace char
  for(i = 0;i<strlen(str);i++) {
    if(str[i] != ' '
        && str[i] != '\0'
        && str[i] != '\r'
        && str[i] != '\n'
        && str[i] != '\t') {
      start = i;
      break;
    }
  }

  if(end == start) { 
    out[0] = '\0';
  } else {
    strncpy(out, &str[start], end - start + 2);
    str[end + 1] = '\0';
  }
}

void split(char* str, char delim, int reqcol, char* buf) {
  int i     = 0;
  int col   = 0;
  int bufi  = 0;

  while(i < strlen(str)) {
    if(str[i] == delim) {
      col++;
      i++;
      continue;
    } else {
      if(col == reqcol) {
        buf[bufi] = str[i];
        bufi++;
      }
    }
    i++;
  }

  buf[bufi] = '\0';
}