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Class `std.csv.HeaderMismatchException`

Exception thrown under different conditions based on the type of Contents.


						
				class HeaderMismatchException
				
  : CSVException
				;

Structure, Class, and Associative Array

When a header is provided but a matching column is not found

Other

When a header is provided but a matching column is not found
Order did not match that found in the input

Since a row and column is not meaningful when a column specified by the header is not found in the data, both row and col will be zero. Otherwise row is always one and col is the first instance found in header that occurred before the previous starting at one.

Fields

Name	Type	Description
`col`	`ulong`
`file`	`string`	The file name of the D source code corresponding with where the error was thrown from.
`info`	`object.Throwable.TraceInfo`	The stack trace of where the error happened. This is an opaque object that can either be converted to `string`, or iterated over with `foreach` to extract the items in the stack trace (as strings).
`line`	`ulong`	The line number of the D source code corresponding with where the error was thrown from.
`msg`	`string`	A message describing the error.
`row`	`ulong`

Properties

Name	Type	Description
`next`[get]	`inout(Throwable)`
`next`[set]	`Throwable`	Replace next in chain with `tail`. Use `chainTogether` instead if at all possible.

Methods

Name	Description
`chainTogether` (e1, e2)	Append `e2` to chain of exceptions that starts with `e1`.
`factory` (classname)	Create instance of class specified by the fully qualified name classname. The class must either have no constructors or have a default constructor.
`message` ()	Get the message describing the error. Base behavior is to return the `Throwable.msg` field. Override to return some other error message.
`opApply` (dg)	Loop over the chain of Throwables.
`opCmp` (o)	Compare with another Object obj.
`opEquals` (o)	Test whether `this` is equal to `o`. The default implementation only compares by identity (using the `is` operator). Generally, overrides for `opEquals` should attempt to compare objects by their contents.
`refcount` ()
`toHash` ()	Compute hash function for Object.
`toString` ()	Overrides `Object.toString` and returns the error message. Internally this forwards to the `toString` overload that takes a sink delegate.
`toString` ()	The Throwable hierarchy uses a toString overload that takes a sink delegate to avoid GC allocations, which cannot be performed in certain error situations. Override this `toString` method to customize the error message.

Example

import std.exception : assertThrown;
string text = "a,b,c\nHello,65,2.5";
assertThrown!HeaderMismatchException(text.csvReader(["b","c","invalid"]));

Authors

Jesse Phillips

License

Boost License 1.0.