Lua

CSV Delete Column by Name

Demonstrates the DeleteColumnByName method. Lua

local chilkat = require("chilkat")

-- 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

local bCrlf = true
local sb = chilkat.StringBuilder.new()
sb:append_line("permalink,company,numEmps,category,city,state,fundedDate,raisedAmt,raisedCurrency,round", bCrlf)
sb:append_line("lifelock,LifeLock,,web,Tempe,AZ,1-May-07,6850000,USD,b", bCrlf)
sb:append_line("mycityfaces,MyCityFaces,7,web,Scottsdale,AZ,1-Jan-08,50000,USD,seed", bCrlf)
sb:append_line("flypaper,Flypaper,,web,Phoenix,AZ,1-Feb-08,3000000,USD,a", bCrlf)
sb:append_line("infusionsoft,Infusionsoft,105,software,Gilbert,AZ,1-Oct-07,9000000,USD,a", bCrlf)
sb:append_line("gauto,gAuto,4,web,Scottsdale,AZ,1-Jan-08,250000,USD,seed", bCrlf)

local csv = chilkat.Csv.new()

-- Indicate that the 1st line contains column names.
csv.has_column_names = true
local success = csv:load_from_string(sb:get_as_string())

-- Delete the "city" column.
success = csv:delete_column_by_name("city")

print(csv:save_to_string())

-- 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