On Saturday, 5 September 2015 at 12:41:37 UTC, Namal wrote:
Thx guys. Now I try out the split function. I read the file as
a single string?
auto arr = split(cast(string)read(filename),",");
where the file has "A", "B", "C"
and I get the output ["\"A\"", " \"B\"", " \"C\"\n"]
I can understand that read functions reads the endl but what
does it with the quotation marks? how can I modify read so I
get just ["A", "B", "C"]
'\' is the escape character and is used to disambiguate start or
end of string (") and a quotation mark within the string (\"),
the same way as "\n" means newline and not '\' 'n', which would
have been "\\n".
So what you have is [`"A"`, ` "B"`, ` "C"\n`], if you use ` for
start\stop of string. You say you want ["A", "B", "C"], so you
need to remove whitespace. You can do that with std.string.strip.
Assuming you also want to remove the quotation marks present in
the file, one solution is to use std.string.chomp and
std.string.chompPrefix, for example:
string s = cast(string) read(filename);
s.split(",")
.map!strip
.map!(s => chomp(s, "\"")
.map!(s => chompPrefix(s, "\"")
.writeln
;
