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pub(crate) fn format_docs(src: &str) -> String {
let mut processed_lines = Vec::new();
let mut in_code_block = false;
for line in src.lines() {
if in_code_block && line.trim_start().starts_with("# ") {
continue;
}
if line.starts_with("```") {
in_code_block ^= true
}
let line = if in_code_block && line.starts_with("```") && !line.contains("rust") {
"```rust"
} else {
line
};
processed_lines.push(line);
}
processed_lines.join("\n")
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_format_docs_adds_rust() {
let comment = "```\nfn some_rust() {}\n```";
assert_eq!(format_docs(comment), "```rust\nfn some_rust() {}\n```");
}
#[test]
fn test_format_docs_skips_comments_in_rust_block() {
let comment = "```rust\n # skip1\n# skip2\n#stay1\nstay2\n```";
assert_eq!(format_docs(comment), "```rust\n#stay1\nstay2\n```");
}
#[test]
fn test_format_docs_keeps_comments_outside_of_rust_block() {
let comment = " # stay1\n# stay2\n#stay3\nstay4";
assert_eq!(format_docs(comment), comment);
}
}
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