Compile moderncv to typst

compile-moderncv-to-typst.rs

#[derive(Debug)]
enum Value {
    Plain(String),
    Section(String),
    CvEntry(Vec<String>),
    CvItem(Vec<String>),
}

fn parse(input: &str) {
    use std::mem::replace;
    let mut quoting_buffer = String::new();
    let mut quoting_depth = 0;
    
    let mut stream = Vec::new();
    let mut context = String::new();
    let mut blocks = Vec::new();
    
    let mut commenting = false;
    
    let mut in_bracket = false;
    
    for c in input.chars() {
        if c == '%' {
            commenting = true;
        }
        else if commenting && c != '\n' {
            continue;
        }
        else if c == ']' {
            in_bracket = false;
        }
        else if c == '[' {
            in_bracket = true;
        }
        else if in_bracket {
            continue;
        }
        else if c == '}' {
            quoting_depth -= 1;
            if quoting_depth == 0 {
                blocks.push(replace(&mut quoting_buffer, String::new()));
            }
        }
        else if c == '\n' {
            commenting = false;
            if context.len() == 0 { continue }
            match replace(&mut context, String::new()).as_str() {
                "\\section" => {
                    if blocks.len() < 1 { continue }
                    stream.push(Value::Section(replace(&mut blocks, Vec::new()).pop().unwrap()));
                }
                "\\cventry" => {
                    if blocks.len() < 6 { continue }
                    stream.push(Value::CvEntry(replace(&mut blocks, Vec::new())));
                }
                "\\cvitem" => {
                    if blocks.len() < 2 { continue }
                    stream.push(Value::CvItem(replace(&mut blocks, Vec::new())));
                },
                "\\firstname" => (),
                "\\familyname" => (),
                "\\title" => (),
                "\\mobile" => (),
                "\\email" => (),
                "\\address" => (),
                "\\photo" => (),
                "\\makecvtitle" => (),
                "\\begin" => (),
                "\\end" => (),
                "\\documentclass" => (),
                "\\moderncvstyle" => (),
                "\\moderncvcolor" => (),
                "\\usepackage" => (),
                "\\setlength" => (),
                x => {
                    if x.starts_with("\\") {                        
                        println!(":{}", x);
                        unreachable!()
                    }
                    stream.push(Value::Plain(x.to_string()));
                }
            }
        }
        else if c == '{' {
            if quoting_depth > 0 {
                quoting_buffer.clear();
            }
            quoting_depth += 1;
        }
        else if quoting_depth > 0 {
            quoting_buffer.push(c);
        }
        else if !c.is_whitespace() {
            context.push(c)
        }
    }
    
    for item in stream {
        match item {
            Value::Plain(val) => {
                println!("{}", val);
            },
            Value::Section(val) => {
                println!("\n= {}\n#line(length: 100%)", val);
            },
            Value::CvEntry(parts) => {
                println!("#v(.2em)");
                if parts[2].len() > 0 {
                    println!("== {}", parts[2]);
                }
                println!("*{}* #h(1fr) {}#v(.1em)\n{}", parts[1], parts[0], parts[5]);
            },
            Value::CvItem(parts) => {
                println!("/ {}:`{}`", parts[0], parts[1]);
            },
        }
    }
}

fn main() {
    parse(r"

\firstname{Jane}
\familyname{Doe}
\title{Curriculum Vitae}
\address{Street}{City}{}
\mobile{Number}
\email{email}

\begin{document}
\makecvtitle

\section{Education}

\cventry
{2020--2025}
{Degree}
{University}
{Location}
{\textit{Grade}}% Missing this
{Some info including a link in my real document. The automatic linebreak works here, but not below}

\setlength{\hintscolumnwidth}{4cm}
\setlength{\maincolumnwidth}{\dimexpr\linewidth-\hintscolumnwidth-\separatorcolumnwidth}

\cvitem{Item 1}{This is the description of item 1 and it is very long so I need an automatic linebreak here so the text doesn't go beyond the linewidth.}
\cvitem{Item 2}{This is the description of item 2 and it is very long so I need an automatic linebreak here which I don't know how to create.}
\cvitem{Item 3}{This is the description of item 3 and it is even longer and spans across multiple lines so I need an automatic linebreak so the text doesn't go beyond the linewidth, but I don't know how to create this.}

\end{document}
      ")
}