45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
//! Miscellaneous parsing utilities.
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use std::str::FromStr;
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use {
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regex::Match,
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scraper::{ElementRef, Selector},
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};
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use crate::regexes::DUPLICATE_WHITESPACE_RE;
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/// Shorthand to extract the text and `href` values from an anchor element.
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pub fn extract_anchor_values(anchor: ElementRef) -> (String, String) {
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let name = DUPLICATE_WHITESPACE_RE
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.replace_all(&anchor.text().collect::<String>(), " ")
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.trim()
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.to_string();
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let href = anchor.value().attr("href").unwrap().to_string();
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(name, href)
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}
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/// Shorthand to parse a [`regex::Match`] with [`std::str::FromStr`].
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pub fn parse_regex_match<T: FromStr>(regex_match: Option<Match>) -> Option<T> {
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regex_match.and_then(|regex_match| regex_match.as_str().parse::<T>().ok())
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}
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/// Returns the text of the first found element inside the given `parent`
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/// element.
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pub fn select_first_element_text(
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parent: ElementRef,
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selector: &Selector,
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) -> Option<String> {
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parent
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.select(selector)
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.next()
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.map(|element| element.text().collect::<String>())
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.map(|text| text.trim().to_string())
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}
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/// Shorthand for creating a [`scraper::Selector`].
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pub fn selector(selector: &str) -> Selector {
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Selector::parse(selector).unwrap()
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}
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