Module regex_syntax::ast::parse

This module provides a regular expression parser.

Structs

• NestLimiter 🔒
  A type that traverses a fully parsed Ast and checks whether its depth exceeds the specified nesting limit. If it does, then an error is returned.
• Parser
  A regular expression parser.
• ParserBuilder
  A builder for a regular expression parser.
• ParserI 🔒
  ParserI is the internal parser implementation.

Enums

• ClassState 🔒
  ClassState represents a single stack frame while parsing character classes. Each frame records the state up to an intersection, difference, symmetric difference or nested class.
• GroupState 🔒
  GroupState represents a single stack frame while parsing nested groups and alternations. Each frame records the state up to an opening parenthesis or a alternating bracket |.
• Primitive 🔒
  A primitive is an expression with no sub-expressions. This includes literals, assertions and non-set character classes. This representation is used as intermediate state in the parser.

Functions

• is_capture_char 🔒
  Returns true if the given character is a valid in a capture group name.
• is_hex 🔒
  Returns true if the given character is a hexadecimal digit.
• specialize_err 🔒
  When the result is an error, transforms the ast::ErrorKind from the source Result into another one. This function is used to return clearer error messages when possible.

Type Aliases

• Result 🔒