duckling 0.4.0

A Rust port of Facebook's Duckling library for parsing natural language into structured data
Documentation 
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use crate::types::{DimensionKind, PatternItem, TokenData};
use regex::Regex;

/// Create a regex pattern item. The pattern is matched case-insensitively
/// against the original document text.
pub fn regex(pattern: &str) -> PatternItem {
    let full = format!("(?i){}", pattern);
    PatternItem::Regex(
        Regex::new(&full).unwrap_or_else(|e| panic!("Invalid regex pattern '{}': {}", pattern, e)),
    )
}

/// Create a dimension pattern item that matches any token of the given dimension.
pub fn dim(kind: DimensionKind) -> PatternItem {
    PatternItem::Dimension(kind)
}

/// Create a predicate pattern item with a custom matching function.
pub fn predicate<F>(f: F) -> PatternItem
where
    F: Fn(&TokenData) -> bool + Send + Sync + 'static,
{
    PatternItem::Predicate(Box::new(f))
}