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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| use super::*; | ||
|
|
||
| pub(crate) fn get_course_codes(par: &ElementRef) -> Result<Vec<String>> { | ||
| let mut codes = par | ||
| .select_many("a")? | ||
| .iter() | ||
| .map(|link| get_course_code_from_link(link).replace(' ', "")) | ||
| .filter(|code| !code.is_empty()) | ||
| .collect::<Vec<String>>(); | ||
| dedup(&mut codes); | ||
|
|
||
| Ok(codes) | ||
| } | ||
|
|
||
| pub(crate) fn get_course_code_from_link(link: &ElementRef) -> String { | ||
| link | ||
| .value() | ||
| .attr("href") | ||
| .unwrap_or("") | ||
| .split('/') | ||
| .last() | ||
| .unwrap_or("") | ||
| .to_ascii_uppercase() | ||
| .replace('-', " ") | ||
| } | ||
|
|
||
| pub(crate) fn get_text(par: &ElementRef) -> String { | ||
| par | ||
| .text() | ||
| .collect::<String>() | ||
| .split(' ') | ||
| .skip(1) | ||
| .collect::<Vec<&str>>() | ||
| .join(" ") | ||
| } | ||
|
|
||
| pub(crate) fn wrap_course_codes(par: &ElementRef) -> String { | ||
| par | ||
| .children() | ||
| .map(|el| { | ||
| match el.value() { | ||
| Node::Text(t) => t.to_string(), | ||
| Node::Element(e) => { | ||
| // This unwrap will never panic | ||
| let elem = ElementRef::wrap(el).unwrap(); | ||
| let text = elem.text().collect::<String>(); | ||
| if e.name() == "a" && !text.is_empty() { | ||
| format!("`{}`", get_course_code_from_link(&elem)) | ||
| } else { | ||
| text | ||
| } | ||
| } | ||
| _ => String::from(""), | ||
| } | ||
| }) | ||
| .collect::<String>() | ||
| } | ||
|
|
||
| pub(crate) fn dedup(v: &mut Vec<String>) { | ||
| let mut set = HashSet::new(); | ||
|
|
||
| v.retain(|e| set.insert(e.clone())); | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; | ||
|
|
||
| #[test] | ||
| fn test_wrap_course_codes() { | ||
| let html = Html::parse_fragment( | ||
| r#"<html><p>Prerequisites: <a href="/study/2023-2024/courses/isla-651d1"></a><a href="http://www.mcgill.ca/study/2023-2024/courses/ISLA-651D1">ISLA 651D1</a>/<a href="/study/2023-2024/courses/isla-651d2">D2</a> or <a href="/study/2023-2024/courses/isla-551d1"></a><a href="http://www.mcgill.ca/study/2023-2024/courses/ISLA-551D1" title="" class="tooltip">ISLA 551D1</a>/<a href="/study/2023-2024/courses/isla-551d2" title="" class="tooltip">D2</a> or <a href="/study/2023-2024/courses/isla-251d1"></a><a href="http://www.mcgill.ca/study/2023-2024/courses/ISLA-251D1">ISLA 251D1</a>/<a href="/study/2023-2024/courses/isla-251d2">D2</a> or permission of the Institute.</p></html>"#, | ||
| ); | ||
| let elem = html.root_element().select_single("p").unwrap(); | ||
|
|
||
| assert_eq!(wrap_course_codes(&elem), "Prerequisites: `ISLA 651D1`/`ISLA 651D2` or `ISLA 551D1`/`ISLA 551D2` or `ISLA 251D1`/`ISLA 251D2` or permission of the Institute."); | ||
| } | ||
|
|
||
| #[test] | ||
| fn wrap_course_codes_ignores_non_a_tags() { | ||
| let html = Html::parse_fragment( | ||
| r#"<html><p>this <span>is a</span> <a href="foo.com/test-396">TEST 396</a> for ignoring tags</p></html>"#, | ||
| ); | ||
| let elem = html.root_element().select_single("p").unwrap(); | ||
|
|
||
| assert_eq!( | ||
| wrap_course_codes(&elem), | ||
| "this is a `TEST 396` for ignoring tags" | ||
| ); | ||
| } | ||
| } |