Fragment

public abstract class Fragment

A single categorised span of a string. Fragments are created only by Fragments and are immutable once that collection is built.

Properties

After

public int After { get; }

Gets the index of the character after this fragment.

Defect

public string Defect { get; }

Gets a description of what is wrong with this fragment, or null when no problem exists.

Kind

public abstract FragmentKind Kind { get; }

Gets the category of this fragment.

Length

public int Length { get; }

Gets the number of characters covered by this fragment.

public Fragment Next { get; }

Gets the following fragment. Never null; the FragmentKind.Tail marker returns itself.

NextMeaningful

public Fragment NextMeaningful { get; }

Gets the following fragment, skipping whitespace and single line comments. Line breaks and multi line comments are boundaries rather than trivia, and are returned rather than skipped.

public Fragment Prev { get; }

Gets the preceding fragment. Never null; the FragmentKind.Head marker returns itself.

PrevMeaningful

public Fragment PrevMeaningful { get; }

Gets the preceding fragment, skipping whitespace and single line comments. Line breaks and multi line comments are boundaries rather than trivia, and are returned rather than skipped.

Start

public int Start { get; }

Gets the index of the first character of this fragment within Fragments.Source. This index is absolute, and remains valid in every view derived from the original collection.

Text

public string Text { get; }

Gets the characters covered by this fragment.

Methods

IsAdjacentTo

public bool IsAdjacentTo(Fragment other)

Gets whether this fragment is directly adjacent to the given one, with no intervening characters. Used to match multi character operators.

Parameters:

other (Fragment)

IsAll

public bool IsAll(params FragmentKind[] filter)

Tests whether this fragment matches all of the provided filter kinds. Note: this fragment may have additional kinds not covered by the filter, if you want an exact match, just compare against Kind.

Parameters:

filter (params FragmentKind[])

IsAny

public bool IsAny(params FragmentKind[] filter)

Tests whether this fragment is any of the provided filter kinds.

Parameters:

filter (params FragmentKind[])

ToString

public override string ToString()

Gets a description of this fragment, for debugging purposes.

Overrides: Object.ToString