Applies `f` to the expression and all its children (bottom up).

Applies `f` to the expression and all its children (top to bottom).

Constructs a top-down iterator from the expression.

Creates a new top down iterator from an `OptimizedExpr`.

Creates a new `Vm` from optimized rules

Attempts to create a new `Position` at the given position. If the specified position is an invalid index, or the specified position is not a valid UTF

Attempts to create a new span. Will return `None` if `input[start..end]` is an invalid index into `input`. # Examples ``` # use pest::Span; let inpu

Creates a new `Stack`.

Creates a new `Operator` from a `Rule` and `Assoc`. # Examples ``` # use pest::prec_climber::{Assoc, Operator}; # #[allow(non_camel_case_types)] # #

Instantiate a new `PrattParser`.

Creates a new `PrecClimber` directly from a static slice of `(rule: Rule, precedence: u32, associativity: Assoc)` tuples. Precedence starts from `1`.

Creates `Error` from `ErrorVariant` and `Position`. # Examples ``` # use pest::error::{Error, ErrorVariant}; # use pest::Position; # #[allow(non_cam

Wrapper function to track `parse_attempts` as a result of `state` function call in `parser_state.rs`.

Creates `Error` from `ErrorVariant` and `Span`. # Examples ``` # use pest::error::{Error, ErrorVariant}; # use pest::{Position, Span}; # #[allow(non

Create a new `Position` without checking invariants. (Checked with `debug_assertions`.)

Create a new `Span` without checking invariants. (Checked with `debug_assertions`.)

Creates a new `Vm` from optimized rules and a listener function that is called when a rule is matched. (used by the `pest_debugger` crate)