Enum ParseError 

pub enum ParseError {
    MissingSource {
        input: String,
        at: usize,
    },
    UnexpectedEnd {
        input: String,
        at: usize,
        expected: &'static str,
    },
    UnexpectedChar {
        input: String,
        at: usize,
        found: char,
        expected: &'static str,
    },
    InvalidIdentifier {
        input: String,
        at: usize,
        found: String,
    },
    EmptyKey {
        input: String,
        at: usize,
    },
    EmptyValue {
        input: String,
        at: usize,
    },
    InvalidEscape {
        input: String,
        at: usize,
    },
    UnclosedString {
        input: String,
        at: usize,
    },
    UnclosedList {
        input: String,
        at: usize,
    },
    UnclosedMap {
        input: String,
        at: usize,
    },
    TrailingComma {
        input: String,
        at: usize,
    },
    InvalidNumber {
        input: String,
        at: usize,
        found: String,
    },
    TrailingInput {
        input: String,
        at: usize,
        rest: String,
    },
    InvalidOnError {
        input: String,
        at: usize,
        message: String,
    },
}

Error while parsing a configuration source string.

Format: SOURCE [(OPTIONS)] [?] [:RESOURCE] — see the crate README for rules.

Display is one line by default; use {error:#} for the input snippet and caret.

Examples

use tanzim_source::{Source, ParseError};

let error: ParseError = Source::parse("").unwrap_err();
assert_eq!(
    error.to_string(),
    "invalid configuration source at column 1: configuration source is required"
);

Variants

MissingSource

No source identifier (empty input or invalid start).

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

UnexpectedEnd

Input ended before a required token.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

expected: &'static str

What was expected at this position.

UnexpectedChar

Unexpected character at the current position.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

found: char

The character that was found instead.

expected: &'static str

What was expected at this position.

InvalidIdentifier

Option or map key is not a valid identifier.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

found: String

The invalid identifier text that was found.

EmptyKey

Option or map key is empty.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

EmptyValue

Option value is empty; use "" for an empty string.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

InvalidEscape

Invalid escape sequence inside a quoted string.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

UnclosedString

Quoted string has no closing ".

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

UnclosedList

List has no closing ].

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

UnclosedMap

Map or options block has no closing ).

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

TrailingComma

Comma with no following entry.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

InvalidNumber

Token looks like a number but is not valid.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

found: String

The invalid numeric token that was found.

TrailingInput

Non-empty input after a complete configuration source.

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

rest: String

The unparsed remainder of the input.

InvalidOnError

The reserved on_error option is malformed (bad shape, unknown stage, or bad value).

Fields

input: String

The full input string being parsed.

at: usize

Byte offset into input where the error occurred.

message: String

Description of what is wrong with the on_error option.

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Eq for ParseError

impl Error for ParseError

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<ParseError> for Error

fn from(error: ParseError) -> Self

Converts to this type from the input type.

impl PartialEq for ParseError

fn eq(&self, other: &ParseError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ParseError