Module regex_syntax::ast [−] [src]

Defines an abstract syntax for regular expressions.

Modules

parse	This module provides a regular expression parser.
print	This module provides a regular expression printer for `Ast`.

Alternation	An alternation of regular expressions.
Assertion	A single zero-width assertion.
CaptureName	A capture name.
ClassAscii	An ASCII character class.
ClassBracketed	A bracketed character class, e.g., `[a-z0-9]`.
ClassPerl	A Perl character class.
ClassSetBinaryOp	A Unicode character class set operation.
ClassSetRange	A single character class range in a set.
ClassSetUnion	A union of items inside a character class set.
ClassUnicode	A Unicode character class.
Comment	A comment from a regular expression with an associated span.
Concat	A concatenation of regular expressions.
Error	An error that occurred while parsing a regular expression into an abstract syntax tree.
Flags	A group of flags.
FlagsItem	A single item in a group of flags.
Group	A grouped regular expression.
Literal	A single literal expression.
Position	A single position in a regular expression.
Repetition	A repetition operation applied to a regular expression.
RepetitionOp	The repetition operator itself.
SetFlags	A group of flags that is not applied to a particular regular expression.
Span	Span represents the position information of a single AST item.
WithComments	An abstract syntax tree for a singular expression along with comments found.

AssertionKind	An assertion kind.
Ast	An abstract syntax tree for a single regular expression.
Class	A single character class expression.
ClassAsciiKind	The available ASCII character classes.
ClassPerlKind	The available Perl character classes.
ClassSet	A character class set.
ClassSetBinaryOpKind	The type of a Unicode character class set operation.
ClassSetItem	A single component of a character class set.
ClassUnicodeKind	The available forms of Unicode character classes.
ClassUnicodeOpKind	The type of op used in a Unicode character class.
ErrorKind	The type of an error that occurred while building an AST.
Flag	A single flag.
FlagsItemKind	The kind of an item in a group of flags.
GroupKind	The kind of a group.
HexLiteralKind	The type of a Unicode hex literal.
LiteralKind	The kind of a single literal expression.
RepetitionKind	The kind of a repetition operator.
RepetitionRange	A range repetition operator.
SpecialLiteralKind	The type of a special literal.

A trait for visiting an abstract syntax tree (AST) in depth first order.

Executes an implementation of Visitor in constant stack space.