A view representing path segments in a URL

Synopsis

Declared in header </boost/url/segments_view.hpp#L55[boost/url/segments_view.hpp,window=blank_]>

class segments_view
    : public segments_base;

Types

Name

Description

const_iterator

iterator

const_reference

The reference type

difference_type

A signed integer type used to represent differences.

iterator

reference

The reference type

size_type

An unsigned integer type used to represent size.

value_type

The value type

Member Functions

Name

Description

back

Return the last segment

begin

Return an iterator to the beginning

buffer

Return the referenced character buffer.

empty

Return true if there are no segments

end

Return an iterator to the end

front

Return the first segment

is_absolute

Returns true if this references an absolute path.

operator=

Assignment

segments_view

Constructor

size

Return the number of segments

Static Member Functions

Name

Description

max_size

Return the maximum number of characters possible

Description

Objects of this type are used to interpret the path as a bidirectional view of segment strings. The view does not retain ownership of the elements and instead references the original character buffer. The caller is responsible for ensuring that the lifetime of the buffer extends until it is no longer referenced.

Example

url_view u( "/path/to/file.txt" );

segments_view ps = u.segments();

assert( ps.buffer().data() == u.buffer().data() );

Percent escapes in strings returned when dereferencing iterators are automatically decoded.

Iterator Invalidation

Changes to the underlying character buffer can invalidate iterators which reference it.