Line number

CodeSnap supports render line numbers in code snapshots, which can be useful for referencing specific lines of code. You can enable or disable line numbers in the Code configuraion:

#[derive(Clone, Builder, Serialize, Deserialize, Debug, JsonSchema)]
pub struct Code {
    #[builder(setter(into))]
    pub content: String,
 
    #[builder(default = false)]
    pub has_breadcrumbs: bool,
 
    #[builder(setter(into, strip_option), default = None)]
    pub start_line_number: Option<u32>,
 
    #[builder(setter(into), default = vec![])]
    #[serde(default)]
    pub highlight_lines: Vec<HighlightLine>,
 
    /// The `language` will be used to determine the syntax highlighting to use for generating
    /// the snapshot.
    #[builder(setter(into, strip_option), default = None)]
    pub language: Option<String>,
 
    #[builder(setter(into, strip_option), default = None)]
    pub file_path: Option<String>,
}

For instance, if your code snippet is start from like 10, then you can set the start_line_number to 10:

let code_content = Content::Code(
    CodeBuilder::default()
        .content(r#"pub fn main() {
            println!("Hello, world!");
        }"#)
        .language("rust")
        .start_line_number(10u32)
        .build()?,
);
 
let snapshot = CodeSnap::from_default_theme()?
    .content(code_content)
    .build()?
    .create_snapshot()?;

The output will be like this:

line number