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Function `std.csv.csvNextToken`

Lower level control over parsing CSV


						
				void csvNextToken(Range, Malformed ErrorLevel = Malformed.throwException, Separator, Output)
				(
				

				  ref Range input,
				

				  ref Output ans,
				

				  Separator sep,
				

				  Separator quote,
				

				  bool startQuoted = false
				

				)
				

				if (isSomeChar!Separator && isInputRange!Range && is(Unqual!(ElementType!Range) == dchar) && isOutputRange!(Output, dchar));

This function consumes the input. After each call the input will start with either a delimiter or record break (\n, \r\n, \r) which must be removed for subsequent calls.

Parameters

Name	Description
input	Any CSV input
ans	The first field in the input
sep	The character to represent a comma in the specification
quote	The character to represent a quote in the specification
startQuoted	Whether the input should be considered to already be in quotes

Throws

IncompleteCellException When a quote is found in an unquoted field, data continues after a closing quote, or the quoted field was not closed before data was empty.

Example

import std.array : appender;
import std.range.primitives : popFront;

string str = "65,63\n123,3673";

auto a = appender!(char[])();

csvNextToken(str,a,',','"');
writeln(a.data); // "65"
writeln(str); // ",63\n123,3673"

str.popFront();
a.shrinkTo(0);
csvNextToken(str,a,',','"');
writeln(a.data); // "63"
writeln(str); // "\n123,3673"

str.popFront();
a.shrinkTo(0);
csvNextToken(str,a,',','"');
writeln(a.data); // "123"
writeln(str); // ",3673"

Authors

Jesse Phillips

License

Boost License 1.0.