Space around the delimiter in readdlm breaks the functionality of the quotes option

[yakir12]

In readdlm (and readcsv), the quotes option allows for columns that are enclosed within double-quote (”) characters to contain new lines and column delimiters. But if there is a space before/after the delimiter, then readdlm either errors (unexpected character ' ' after quoted field) or doesn't parse the file as intended (number of rows is wrong), respectively:

a,b
c,"d, e"

results in a 2×2 Array{String,2}, good!

a,b
c, "d, e"

results in a 2×3 Array{String,2}, bad...

Because csv files are human-readable and humans usually put a space after a comma, maybe readdlm (or at least readcsv) should ignore spaces around delimiters?

[strickek]

I think the behavior is normal for Strings:
readdlm(IOBuffer("a,b"), ',') != readdlm(IOBuffer("a, b"), ',')
(even both are 1×2 Array{Any,2}: "b" != " b"
and therfore:
readdlm(IOBuffer("\"a,b\""), ',') gives 1×1 Array{Any,2}: "a,b"
readdlm(IOBuffer(" \"a,b\""), ',') gives 1×2 Array{Any,2}: " "a" "b""
The Error case is this:
readdlm(IOBuffer("\"a,b\" "), ',')
unexpected character ' ' after quoted field at row 1 column 1