(Objective-C) CSV Column Names

Demonstrates how to access CSV column names.

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#import <CkoCsv.h>
#import <NSString.h>

// This example program loads a file (sample.csv)
// that contains this content:
// 
// year,color,country,food
// 2001,red,France,cheese
// 2005,blue,"United States",hamburger
// 2008,green,Italy,pasta
// 1998,orange,Japan,sushi
// 
// The first row contains the column names.
// This file is available at:
// http://www.chilkatsoft.com/testData/sample.csv

CkoCsv *csv = [[CkoCsv alloc] init];

// Prior to loading the CSV file, indicate that the 1st row
// should be treated as column names:
csv.HasColumnNames = YES;

// Load the CSV records from the file:
BOOL success;
success = [csv LoadFile: @"sample.csv"];
if (success != YES) {
    NSLog(@"%@",csv.LastErrorText);
    return;
}

// Display the column names:
int i;
NSString *colName = 0;
int idx;
for (i = 0; i <= [csv.NumColumns intValue] - 1; i++) {
    colName = [csv GetColumnName: [NSNumber numberWithInt: i]];
    NSLog(@"%d%@%@",i,@": ",colName);

    // The following line demonstrates to to get the column
    // index given a column name:
    idx = [[csv GetIndex: colName] intValue];
    NSLog(@"%@%@%d",colName,@" is at column index ",idx);
}