| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/git/checkouts/tantivy-65d0bbbddbbd5d02/433372d/src/termdict/fst_termdict/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="../../../../source-script.js"></script><script defer src="../../../../source-files.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../tantivy/index.html"><div class="logo-container"> |
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| </pre><pre class="rust"><code><span class="doccomment">//! The term dictionary main role is to associate the sorted [`Term`](crate::Term)s with |
| //! a [`TermInfo`](crate::postings::TermInfo) struct that contains some meta-information |
| //! about the term. |
| //! |
| //! Internally, the term dictionary relies on the `fst` crate to store |
| //! a sorted mapping that associates each term to its rank in the lexicographical order. |
| //! For instance, in a dictionary containing the sorted terms "abba", "bjork", "blur" and "donovan", |
| //! the `TermOrdinal` are respectively `0`, `1`, `2`, and `3`. |
| //! |
| //! For `u64`-terms, tantivy explicitly uses a `BigEndian` representation to ensure that the |
| //! lexicographical order matches the natural order of integers. |
| //! |
| //! `i64`-terms are transformed to `u64` using a continuous mapping `val ⟶ val - i64::MIN` |
| //! and then treated as a `u64`. |
| //! |
| //! `f64`-terms are transformed to `u64` using a mapping that preserve order, and are then treated |
| //! as `u64`. |
| //! |
| //! A second datastructure makes it possible to access a |
| //! [`TermInfo`](crate::postings::TermInfo). |
| </span><span class="kw">mod </span>merger; |
| <span class="kw">mod </span>streamer; |
| <span class="kw">mod </span>term_info_store; |
| <span class="kw">mod </span>termdict; |
| |
| <span class="kw">pub use </span><span class="self">self</span>::merger::TermMerger; |
| <span class="kw">pub use </span><span class="self">self</span>::streamer::{TermStreamer, TermStreamerBuilder}; |
| <span class="kw">pub use </span><span class="self">self</span>::termdict::{TermDictionary, TermDictionaryBuilder}; |
| </code></pre></div> |
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