udv::text

Struct UDV

Source
pub struct UDV {
    pub header: char,
    pub message: char,
    pub record: char,
    pub unit: char,
    pub escape: char,
    pub end_message: char,
    pub end_stream: char,
}

Fields§

§header: char§message: char§record: char§unit: char§escape: char§end_message: char§end_stream: char

Implementations§

Source§

impl UDV

Source

pub fn new_c0_text() -> Self

A text parser using c0 control sequences.

Source

pub fn is_delimiter(self, c: char) -> bool

Source

pub fn parse_garbage(self, input: &str) -> IResult<&str, &str>

Source

pub fn parse_escape(self, input: &str) -> IResult<&str, char>

use nom::{Err, Needed};
let parser = udv::text::UDV::default();

assert_eq!(parser.parse_escape(r#"\"#), Err(Err::Incomplete(Needed::new(1))));
assert_eq!(parser.parse_escape(r#"\\"#), Ok(("", '\\')));
assert_eq!(parser.parse_escape(r#"\n"#), Ok(("", 'n')));
assert_eq!(parser.parse_escape("\\\nxyz"), Ok(("xyz", '\n')));
Source

pub fn parse_unit(self, input: &str) -> IResult<&str, Unit<'_>>

use nom::{Err, Needed};
use std::borrow::Cow;
use udv::text::{Unit, UDV};
let parser = UDV::default();

assert_eq!(parser.parse_unit(r#",alpha,beta"#), Ok((",beta", Unit(Cow::Borrowed("alpha")))));
assert_eq!(parser.parse_unit(",al\\\\pha,beta"), Ok((",beta", Unit(Cow::Owned("al\\pha".to_string())))));
assert_eq!(parser.parse_unit(",al\npha,beta"), Ok(("\npha,beta", Unit(Cow::Borrowed("al")))));
assert_eq!(parser.parse_unit(r#",alpha"#), Err(Err::Incomplete(Needed::new(1))));
Source

pub fn parse_record(self, input: &str) -> IResult<&str, Record<'_>>

use nom::{Err, Needed};
use nom::error::{Error, ErrorKind};
use std::borrow::Cow;
use udv::text::{Unit, UDV, Record};
let parser = UDV::default();

assert_eq!(parser.parse_record("\n,alpha,beta"), Err(Err::Incomplete(Needed::new(1))));
assert_eq!(parser.parse_record("\n,alpha,beta\n"), Ok(("\n", Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]))));
assert_eq!(parser.parse_record("\n,alpha,be\\\\ta\nafter"), Ok(("\nafter", Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Owned("be\\ta".to_string()))]))));
assert!(matches!(parser.parse_record("#,alpha,be\\\\ta\nafter"), Err(Err::Error(Error {code: ErrorKind::Char, ..}))));
Source

pub fn parse_header(self, input: &str) -> IResult<&str, Header<'_>>

use nom::{Err, Needed};
use std::borrow::Cow;
use udv::text::{Unit, UDV, Header};
let parser = UDV::default();

assert_eq!(parser.parse_header("#,alpha,beta"), Err(Err::Incomplete(Needed::new(1))));
assert_eq!(parser.parse_header("#,alpha,beta\n"), Ok(("\n", Header(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]))));
assert_eq!(parser.parse_header("#,alpha,be\\\\ta\nafter"), Ok(("\nafter", Header(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Owned("be\\ta".to_string()))]))));
Source

pub fn parse_message(self, input: &str) -> IResult<&str, Message<'_>>

use nom::{Err, Needed};
use std::borrow::Cow;
use udv::text::{Unit, UDV, Header, Record, Message};
let parser = UDV::default();

assert_eq!(
    parser.parse_message(">\n,alpha,beta\n,gamma,delta\n<"),
    Ok(("", Message{
        header: None,
        records: vec![
            Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
            Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
            // Trailing empty record because of newline.
            Record(vec![]),
        ]
    }))
);
assert_eq!(
    parser.parse_message("#,one,two>\n,alpha,beta\n,gamma,delta\n<"),
    Ok(("", Message{
        header: Some(Header(vec![Unit(Cow::Borrowed("one")), Unit(Cow::Borrowed("two"))])),
        records: vec![
            Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
            Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
            // Trailing empty record because of newline.
            Record(vec![]),
        ]
    }))
);
assert_eq!(
    parser.parse_message("#,one,two>\n,alpha,beta\n,gamma,delta\n"),
    Err(Err::Incomplete(Needed::new(1)))
);
Source

pub fn parse_stream(self, input: &str) -> IResult<&str, Stream<'_>>

use nom::{Err, Needed};
use std::borrow::Cow;
use udv::text::{Unit, UDV, Header, Record, Message, Stream};
let parser = UDV::default();

assert_eq!(
    parser.parse_stream(">\n,alpha,beta\n,gamma,delta\n<!"),
    Ok(("", Stream(vec![
        Message{
            header: None,
            records: vec![
                Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
                Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
                // Trailing empty record because of newline.
                Record(vec![]),
            ]
        }
    ])))
);
assert_eq!(
    parser.parse_stream("#,one,two>\n,alpha,beta\n,gamma,delta\n<!"),
    Ok(("", Stream(vec![
        Message{
            header: Some(Header(vec![Unit(Cow::Borrowed("one")), Unit(Cow::Borrowed("two"))])),
            records: vec![
                Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
                Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
                // Trailing empty record because of newline.
                Record(vec![]),
            ]
        }
    ])))
);
assert_eq!(
    parser.parse_stream(">\n,alpha,beta\n,gamma,delta\n<\ngarbage\n#,one,two>\n,alpha,beta\n,gamma,delta\n<!"),
    Ok(("", Stream(vec![
        Message{
            header: None,
            records: vec![
                Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
                Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
                // Trailing empty record because of newline.
                Record(vec![]),
            ]
        },
        Message{
            header: Some(Header(vec![Unit(Cow::Borrowed("one")), Unit(Cow::Borrowed("two"))])),
            records: vec![
                Record(vec![Unit(Cow::Borrowed("alpha")), Unit(Cow::Borrowed("beta"))]),
                Record(vec![Unit(Cow::Borrowed("gamma")), Unit(Cow::Borrowed("delta"))]),
                // Trailing empty record because of newline.
                Record(vec![]),
            ]
        },
    ])))
);
assert_eq!(
    parser.parse_stream("#,one,two>\n,alpha,beta\n,gamma,delta\n<"),
    Err(Err::Incomplete(Needed::new(1)))
);

Trait Implementations§

Source§

impl Clone for UDV

Source§

fn clone(&self) -> UDV

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for UDV

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for UDV

Return a default reference parser for binary data, using C0 control codes. Return a default reference parser for text data.

Source§

fn default() -> Self

Returns the “default value” for a type. Read more
Source§

impl Hash for UDV

Source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
Source§

impl PartialEq for UDV

Source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl Copy for UDV

Source§

impl Eq for UDV

Source§

impl StructuralPartialEq for UDV

Auto Trait Implementations§

§

impl Freeze for UDV

§

impl RefUnwindSafe for UDV

§

impl Send for UDV

§

impl Sync for UDV

§

impl Unpin for UDV

§

impl UnwindSafe for UDV

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.