fread doesn't trim whitespace at the beginning of fields

[gkalnytskyi]

fread from data.table 1.9.4 doesn't remove whitespace at the beginning of the fields.

Here is the example of the file content:

id, time, obsType, comment
90, 2014-01-03 03:43:31.0138, "l2", "69D88XZ M7ADF H1RSV4"
91, 2014-01-05 13:51:54.2273, "m3", "NULL"

Let's say, it is read by standard read.csv function

data1 <- read.csv("./file.dat", header=TRUE, colClasses=c("integer", "POSIXct", "factor", "character"))

Then names of the columns will be displayed correctly:

names(data1)
[1] "id"      "time"    "obsType" "comment"

But when exactly the same data is read by fread it doesn't remove beginning spaces from the heading and data:

data2 <- fread(input="./sample_data.csv",header=TRUE, colClasses=c("integer", "POSIXct", "factor", "character"))
names(data2)
[1] "id"       " time"    " obsType" " comment"

data[1,2]
"2014-01-03 03:43:31 EET"
unlist(data2[1,2,with=FALSE])
                       time 
" 2014-01-05 13:51:54.2273" 

[arunsrinivasan]

Fixed in devel. Please upgrade and test.