Struct pcre2::Error

pub struct Error { /* fields omitted */ }

A PCRE2 error.

An error can occur during compilation or during matching. The kind of this error indicates the type of operation being performed when the error occurred.

Methods

impl Error

pub fn kind(&self) -> &ErrorKind

Return the kind of this error.

The kind indicates the type of operation that was attempted which resulted in this error.

pub fn code(&self) -> c_int

Return the raw underlying PCRE2 error code.

This can be useful if one needs to determine exactly which error occurred, which can be done with case analysis over the constants exported in the pcre2-sys crate.

pub fn offset(&self) -> Option<usize>

Return the underlying offset associated with this error, if one exists.

The offset is typically only available for compile time errors, and is supposed to indicate the general position in the pattern where an error occurred.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

Deprecated since 1.41.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting