Struct mecab::Node

source · 
pub struct Node {
Show 16 fields
    pub surface: String,
    pub feature: String,
    pub id: u32,
    pub length: u16,
    pub rlength: u16,
    pub rcattr: u16,
    pub lcattr: u16,
    pub posid: u16,
    pub char_type: u8,
    pub stat: u8,
    pub isbest: bool,
    pub alpha: f32,
    pub beta: f32,
    pub prob: f32,
    pub wcost: i16,
    pub cost: c_long,
    /* private fields */

}

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§surface: String§feature: String§id: u32§length: u16§rlength: u16§rcattr: u16§lcattr: u16§posid: u16§char_type: u8§stat: u8§isbest: bool§alpha: f32§beta: f32§prob: f32§wcost: i16§cost: c_long

Implementations§

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impl Node

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pub fn iter_prev(self) -> NodeIter ⓘ

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pub fn prev(&self) -> Option<Node>

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pub fn iter_next(self) -> NodeIter ⓘ

Examples found in repository?
examples/simple.rs (line 28)
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fn main() {
    let input = "太郎は次郎が持っている本を花子に渡した。";
    println!("INPUT: {}", input);

    let mut tagger = Tagger::new("");

    // gets tagged result as String
    let mut result = tagger.parse_str(input);
    println!("RESULT: {}", result);

    // gets N best results as String
    result = tagger.parse_nbest(3, input);
    println!("NBEST:\n{}", result);

    // gets N best in sequence
    tagger.parse_nbest_init(input);
    for i in 0..3 {
        if let Some(res) = tagger.next() {
            println!("{}:\n{}", i, res);
        }
    }

    // gets Node object
    for node in tagger.parse_to_node(input).iter_next() {
        match node.stat as i32 {
            mecab::MECAB_BOS_NODE => {
                print!("{} BOS ", node.id);
            }
            mecab::MECAB_EOS_NODE => {
                print!("{} EOS ", node.id);
            }
            _ => {
                print!("{} {} ", node.id, &(node.surface)[..(node.length as usize)]);
            }
        }

        println!("{} {} {} {} {} {} {} {} {} {} {} {} {}",
                 node.feature,
                 input.len() as isize - node.surface.len() as isize,
                 input.len() as isize - node.surface.len() as isize + node.length as isize,
                 node.rcattr,
                 node.lcattr,
                 node.posid,
                 node.char_type,
                 node.stat,
                 node.isbest,
                 node.alpha,
                 node.beta,
                 node.prob,
                 node.cost);
    }

    // dictionary info
    for dict in tagger.dictionary_info().iter() {
        println!("\nfilename: {}", dict.filename);
        println!("charset: {}", dict.charset);
        println!("size: {}", dict.size);
        println!("type: {}", dict.dict_type);
        println!("lsize: {}", dict.lsize);
        println!("rsize: {}", dict.rsize);
        println!("version: {}", dict.version);
    }
}
More examples
Hide additional examples
examples/multithreaded.rs (line 27)
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fn main() {
    let input = "太郎は次郎が持っている本を花子に渡した。";

    // create model object
    let model = Arc::new(Model::new(""));

    let handle = std::thread::spawn(move || {
        // create tagger based on the model
        let tagger = model.create_tagger();

        // create lattice object per thread
        let mut lattice = model.create_lattice();

        // get tagged result as string
        lattice.set_sentence(input);

        // parse lattice
        tagger.parse(&lattice);
        println!("{}", lattice.to_string());

        // iterate over node objects
        for node in lattice.bos_node().iter_next() {
            match node.stat as i32 {
                mecab::MECAB_BOS_NODE => {
                    print!("{} BOS ", node.id);
                }
                mecab::MECAB_EOS_NODE => {
                    print!("{} EOS ", node.id);
                }
                _ => {
                    print!("{} {} ", node.id, &(node.surface)[..(node.length as usize)]);
                }
            }

            println!("{} {} {} {} {} {} {} {} {} {} {} {} {}",
                     node.feature,
                     input.len() as isize - node.surface.len() as isize,
                     input.len() as isize - node.surface.len() as isize + node.length as isize,
                     node.rcattr,
                     node.lcattr,
                     node.posid,
                     node.char_type,
                     node.stat,
                     node.isbest,
                     node.alpha,
                     node.beta,
                     node.prob,
                     node.cost);
        }

        // iterate over begin and end nodes
        let len = lattice.size();
        for i in 0..len + 1 {
            let b = lattice.begin_nodes(i);
            let e = lattice.end_nodes(i);

            if let Some(nodes) = b {
                for node in nodes.iter_bnext() {
                    println!("B[{}] {}\t{}", i, node.surface, node.feature);
                }
            }

            if let Some(nodes) = e {
                for node in nodes.iter_enext() {
                    println!("E[{}] {}\t{}", i, node.surface, node.feature);
                }
            }
        }

        // get N best results
        lattice.set_request_type(mecab::MECAB_NBEST);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        for i in 0..10 {
            println!("NBEST: {}", i);
            println!("{}", lattice.to_string());

            if !lattice.next() {
                break;
            }
        }

        // marginal probabilities
        lattice.remove_request_type(mecab::MECAB_NBEST);
        lattice.set_request_type(mecab::MECAB_MARGINAL_PROB);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        println!("{}", lattice.theta());

        for node in lattice.bos_node().iter_next() {
            println!("{}\t{}\t{}",
                     &(node.surface)[..(node.length as usize)],
                     node.feature,
                     node.prob);
        }

        // dictionary info
        for dict in model.dictionary_info().iter() {
            println!("\nfilename: {}", dict.filename);
            println!("charset: {}", dict.charset);
            println!("size: {}", dict.size);
            println!("type: {}", dict.dict_type);
            println!("lsize: {}", dict.lsize);
            println!("rsize: {}", dict.rsize);
            println!("version: {}", dict.version);
        }
    });

    handle.join().unwrap();
}
source

pub fn next(&self) -> Option<Node>

source

pub fn iter_enext(self) -> NodeIter ⓘ

Examples found in repository?
examples/multithreaded.rs (line 69)
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fn main() {
    let input = "太郎は次郎が持っている本を花子に渡した。";

    // create model object
    let model = Arc::new(Model::new(""));

    let handle = std::thread::spawn(move || {
        // create tagger based on the model
        let tagger = model.create_tagger();

        // create lattice object per thread
        let mut lattice = model.create_lattice();

        // get tagged result as string
        lattice.set_sentence(input);

        // parse lattice
        tagger.parse(&lattice);
        println!("{}", lattice.to_string());

        // iterate over node objects
        for node in lattice.bos_node().iter_next() {
            match node.stat as i32 {
                mecab::MECAB_BOS_NODE => {
                    print!("{} BOS ", node.id);
                }
                mecab::MECAB_EOS_NODE => {
                    print!("{} EOS ", node.id);
                }
                _ => {
                    print!("{} {} ", node.id, &(node.surface)[..(node.length as usize)]);
                }
            }

            println!("{} {} {} {} {} {} {} {} {} {} {} {} {}",
                     node.feature,
                     input.len() as isize - node.surface.len() as isize,
                     input.len() as isize - node.surface.len() as isize + node.length as isize,
                     node.rcattr,
                     node.lcattr,
                     node.posid,
                     node.char_type,
                     node.stat,
                     node.isbest,
                     node.alpha,
                     node.beta,
                     node.prob,
                     node.cost);
        }

        // iterate over begin and end nodes
        let len = lattice.size();
        for i in 0..len + 1 {
            let b = lattice.begin_nodes(i);
            let e = lattice.end_nodes(i);

            if let Some(nodes) = b {
                for node in nodes.iter_bnext() {
                    println!("B[{}] {}\t{}", i, node.surface, node.feature);
                }
            }

            if let Some(nodes) = e {
                for node in nodes.iter_enext() {
                    println!("E[{}] {}\t{}", i, node.surface, node.feature);
                }
            }
        }

        // get N best results
        lattice.set_request_type(mecab::MECAB_NBEST);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        for i in 0..10 {
            println!("NBEST: {}", i);
            println!("{}", lattice.to_string());

            if !lattice.next() {
                break;
            }
        }

        // marginal probabilities
        lattice.remove_request_type(mecab::MECAB_NBEST);
        lattice.set_request_type(mecab::MECAB_MARGINAL_PROB);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        println!("{}", lattice.theta());

        for node in lattice.bos_node().iter_next() {
            println!("{}\t{}\t{}",
                     &(node.surface)[..(node.length as usize)],
                     node.feature,
                     node.prob);
        }

        // dictionary info
        for dict in model.dictionary_info().iter() {
            println!("\nfilename: {}", dict.filename);
            println!("charset: {}", dict.charset);
            println!("size: {}", dict.size);
            println!("type: {}", dict.dict_type);
            println!("lsize: {}", dict.lsize);
            println!("rsize: {}", dict.rsize);
            println!("version: {}", dict.version);
        }
    });

    handle.join().unwrap();
}
source

pub fn enext(&self) -> Option<Node>

source

pub fn iter_bnext(self) -> NodeIter ⓘ

Examples found in repository?
examples/multithreaded.rs (line 63)
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fn main() {
    let input = "太郎は次郎が持っている本を花子に渡した。";

    // create model object
    let model = Arc::new(Model::new(""));

    let handle = std::thread::spawn(move || {
        // create tagger based on the model
        let tagger = model.create_tagger();

        // create lattice object per thread
        let mut lattice = model.create_lattice();

        // get tagged result as string
        lattice.set_sentence(input);

        // parse lattice
        tagger.parse(&lattice);
        println!("{}", lattice.to_string());

        // iterate over node objects
        for node in lattice.bos_node().iter_next() {
            match node.stat as i32 {
                mecab::MECAB_BOS_NODE => {
                    print!("{} BOS ", node.id);
                }
                mecab::MECAB_EOS_NODE => {
                    print!("{} EOS ", node.id);
                }
                _ => {
                    print!("{} {} ", node.id, &(node.surface)[..(node.length as usize)]);
                }
            }

            println!("{} {} {} {} {} {} {} {} {} {} {} {} {}",
                     node.feature,
                     input.len() as isize - node.surface.len() as isize,
                     input.len() as isize - node.surface.len() as isize + node.length as isize,
                     node.rcattr,
                     node.lcattr,
                     node.posid,
                     node.char_type,
                     node.stat,
                     node.isbest,
                     node.alpha,
                     node.beta,
                     node.prob,
                     node.cost);
        }

        // iterate over begin and end nodes
        let len = lattice.size();
        for i in 0..len + 1 {
            let b = lattice.begin_nodes(i);
            let e = lattice.end_nodes(i);

            if let Some(nodes) = b {
                for node in nodes.iter_bnext() {
                    println!("B[{}] {}\t{}", i, node.surface, node.feature);
                }
            }

            if let Some(nodes) = e {
                for node in nodes.iter_enext() {
                    println!("E[{}] {}\t{}", i, node.surface, node.feature);
                }
            }
        }

        // get N best results
        lattice.set_request_type(mecab::MECAB_NBEST);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        for i in 0..10 {
            println!("NBEST: {}", i);
            println!("{}", lattice.to_string());

            if !lattice.next() {
                break;
            }
        }

        // marginal probabilities
        lattice.remove_request_type(mecab::MECAB_NBEST);
        lattice.set_request_type(mecab::MECAB_MARGINAL_PROB);
        lattice.set_sentence(input);
        tagger.parse(&lattice);

        println!("{}", lattice.theta());

        for node in lattice.bos_node().iter_next() {
            println!("{}\t{}\t{}",
                     &(node.surface)[..(node.length as usize)],
                     node.feature,
                     node.prob);
        }

        // dictionary info
        for dict in model.dictionary_info().iter() {
            println!("\nfilename: {}", dict.filename);
            println!("charset: {}", dict.charset);
            println!("size: {}", dict.size);
            println!("type: {}", dict.dict_type);
            println!("lsize: {}", dict.lsize);
            println!("rsize: {}", dict.rsize);
            println!("version: {}", dict.version);
        }
    });

    handle.join().unwrap();
}
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pub fn bnext(&self) -> Option<Node>

Trait Implementations§

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impl Clone for Node

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fn clone(&self) -> Node

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

Auto Trait Implementations§

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impl RefUnwindSafe for Node

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impl !Send for Node

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impl !Sync for Node

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impl Unpin for Node

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impl UnwindSafe for Node

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.