Zig

CSV Delete Column

Demonstrates the DeleteColumn method. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // We have the following CSV...

    // permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round
    // lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b
    // mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed
    // flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a
    // infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a
    // gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed
    // chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed
    // digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a
    // facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel
    // facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a
    // photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b
    // omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel
    // geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a
    // twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b
    // stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed
    // gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a
    // mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a

    const b_crlf = true;
    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();
    sb.appendLine("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round", b_crlf) catch {};
    sb.appendLine("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b", b_crlf) catch {};
    sb.appendLine("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed", b_crlf) catch {};
    sb.appendLine("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a", b_crlf) catch {};
    sb.appendLine("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a", b_crlf) catch {};
    sb.appendLine("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed", b_crlf) catch {};
    sb.appendLine("chosenlist-com,ChosenList.com,5,web,Scottsdale,AZ,1-Oct-06,140000,USD,seed", b_crlf) catch {};
    sb.appendLine("digg,Digg,60,web,San Francisco,CA,1-Oct-05,2800000,USD,a", b_crlf) catch {};
    sb.appendLine("facebook,Facebook,450,web,Palo Alto,CA,1-Sep-04,500000,USD,angel", b_crlf) catch {};
    sb.appendLine("facebook,Facebook,450,web,Palo Alto,CA,1-May-05,12700000,USD,a", b_crlf) catch {};
    sb.appendLine("photobucket,Photobucket,60,web,Palo Alto,CA,1-May-06,10500000,USD,b", b_crlf) catch {};
    sb.appendLine("omnidrive,Omnidrive,,web,Palo Alto,CA,1-Dec-06,800000,USD,angel", b_crlf) catch {};
    sb.appendLine("geni,Geni,18,web,West Hollywood,CA,1-Jan-07,1500000,USD,a", b_crlf) catch {};
    sb.appendLine("twitter,Twitter,17,web,San Francisco,CA,1-Jul-07,5400000,USD,b", b_crlf) catch {};
    sb.appendLine("stumbleupon,StumbleUpon,,web,San Francisco,CA,1-Dec-05,1500000,USD,seed", b_crlf) catch {};
    sb.appendLine("gizmoz,Gizmoz,,web,Menlo Park,CA,1-May-07,6300000,USD,a", b_crlf) catch {};
    sb.appendLine("mahalo,Mahalo,40,web,Santa Monica,CA,1-Jan-06,5000000,USD,a", b_crlf) catch {};

    const csv = try chilkat.Csv.init();
    defer csv.deinit();

    // Indicate that the 1st line contains column names.
    csv.setHasColumnNames(true);
    try csv.loadFromString(try sb.getAsString(alloc));

    // Delete the "city" column, which is at index 4.  (the 1st column is at index 0)
    try csv.deleteColumn(4);

    std.debug.print("{s}\n", .{try csv.saveToString(alloc)});

    // Output is:

    // permalink,company,numEmps,category,state,fundedDate,raisedAmt,raisedCurrency,round
    // lifelock,LifeLock,,web,AZ,1-May-07,6850000,USD,b
    // mycityfaces,MyCityFaces,7,web,AZ,1-Jan-08,50000,USD,seed
    // flypaper,Flypaper,,web,AZ,1-Feb-08,3000000,USD,a
    // infusionsoft,Infusionsoft,105,software,AZ,1-Oct-07,9000000,USD,a
    // gauto,gAuto,4,web,AZ,1-Jan-08,250000,USD,seed
    // chosenlist-com,ChosenList.com,5,web,AZ,1-Oct-06,140000,USD,seed
    // digg,Digg,60,web,CA,1-Oct-05,2800000,USD,a
    // facebook,Facebook,450,web,CA,1-Sep-04,500000,USD,angel
    // facebook,Facebook,450,web,CA,1-May-05,12700000,USD,a
    // photobucket,Photobucket,60,web,CA,1-May-06,10500000,USD,b
    // omnidrive,Omnidrive,,web,CA,1-Dec-06,800000,USD,angel
    // geni,Geni,18,web,CA,1-Jan-07,1500000,USD,a
    // twitter,Twitter,17,web,CA,1-Jul-07,5400000,USD,b
    // stumbleupon,StumbleUpon,,web,CA,1-Dec-05,1500000,USD,seed
    // gizmoz,Gizmoz,,web,CA,1-May-07,6300000,USD,a
    // mahalo,Mahalo,40,web,CA,1-Jan-06,5000000,USD,a
}