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implement snac markdown filter with tests

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postscriptum 2025-07-13 16:04:14 +03:00
parent bb2979d7e2
commit 7cc68b512e
1 changed files with 92 additions and 11 deletions
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103
src/nex/template.rs
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@ -27,17 +27,7 @@ impl Template {
) -> String { ) -> String {
let mut c = String::with_capacity(content.len() + 128); let mut c = String::with_capacity(content.len() + 128);
for l in content.lines() { for l in content.lines() {
if (l.starts_with("http://") format_line(&mut c, l, &self.format);
|| l.starts_with("https://")
|| l.starts_with("nex://")
|| l.starts_with("gopher://")
|| l.starts_with("gemini://"))
&& !l.contains(' ')
&& !matches!(self.format, Format::Plain)
{
c.push_str("=> ")
}
c.push_str(l);
c.push('\n') c.push('\n')
} }
self.pattern self.pattern
@ -110,3 +100,94 @@ impl Template {
) )
} }
} }
/// Filter snac markdown
/// https://comam.es/snac-doc/snac.5.html
fn format_line(b: &mut String, l: &str, f: &Format) {
if l.starts_with('*') && l.ends_with('*') {
b.push_str(l.trim_matches('*').trim())
} else if l.starts_with('~') && l.ends_with('~') {
b.push_str(l.trim_matches('~').trim())
} else if l.starts_with('_') && l.ends_with('_') {
b.push_str(l.trim_matches('_').trim())
} else if l.starts_with('#') && !matches!(f, Format::Gemtext) {
b.push_str(l.trim_matches('#').trim())
} else if l.starts_with('>') && !matches!(f, Format::Gemtext) {
b.push_str(l.trim_matches('>').trim())
} else if (l.starts_with("http://")
|| l.starts_with("https://")
|| l.starts_with("nex://")
|| l.starts_with("gopher://")
|| l.starts_with("gemini://"))
&& !l.contains(' ')
&& matches!(f, Format::Gemtext | Format::Dir)
{
b.push_str("=> ");
b.push_str(l)
} else {
b.push_str(l)
}
}
#[test]
fn test() {
fn test(a: &str, b: &str, f: &Format) {
let mut s = String::new();
format_line(&mut s, a, f);
assert_eq!(s, b);
}
let f = Format::Dir;
test("*t*", "t", &f);
test("**t**", "t", &f);
test("~~t~~", "t", &f);
test("__t__", "t", &f);
test("> t", "t", &f);
test("# t", "t", &f);
test("## t", "t", &f);
test("### t", "t", &f);
test("gemini://t", "=> gemini://t", &f);
test("gopher://t", "=> gopher://t", &f);
test("http://t", "=> http://t", &f);
test("https://t", "=> https://t", &f);
test("nex://t", "=> nex://t", &f);
let f = Format::Gemtext;
test("*t*", "t", &f);
test("**t**", "t", &f);
test("~~t~~", "t", &f);
test("__t__", "t", &f);
test("> t", "> t", &f);
test("# t", "# t", &f);
test("## t", "## t", &f);
test("### t", "### t", &f);
test("gemini://t", "=> gemini://t", &f);
test("gopher://t", "=> gopher://t", &f);
test("http://t", "=> http://t", &f);
test("https://t", "=> https://t", &f);
test("nex://t", "=> nex://t", &f);
let f = Format::Plain;
test("*t*", "t", &f);
test("**t**", "t", &f);
test("~~t~~", "t", &f);
test("__t__", "t", &f);
test("> t", "t", &f);
test("# t", "t", &f);
test("## t", "t", &f);
test("### t", "t", &f);
test("gemini://t", "gemini://t", &f);
test("gopher://t", "gopher://t", &f);
test("http://t", "http://t", &f);
test("https://t", "https://t", &f);
test("nex://t", "nex://t", &f);
}