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use super::ast::*;
use crate::syntax::text::*;
use lsp_types::Position;
use std::sync::Arc;
#[derive(Debug)]
pub struct LatexPrinter {
pub output: String,
position: Position,
}
impl LatexPrinter {
pub fn new(start_position: Position) -> Self {
Self {
output: String::new(),
position: start_position,
}
}
fn synchronize(&mut self, position: Position) {
while self.position.line < position.line {
self.output.push('\n');
self.position.line += 1;
}
while self.position.character < position.character {
self.output.push(' ');
self.position.character += 1;
}
}
fn print_token(&mut self, token: &LatexToken) {
self.synchronize(token.start());
self.output.push_str(token.text());
self.position.character += token.end().character - token.start().character;
self.synchronize(token.end());
}
}
impl LatexVisitor for LatexPrinter {
fn visit_root(&mut self, root: Arc<LatexRoot>) {
for child in &root.children {
child.accept(self);
}
}
fn visit_group(&mut self, group: Arc<LatexGroup>) {
self.print_token(&group.left);
for child in &group.children {
child.accept(self);
}
if let Some(right) = &group.right {
self.print_token(right);
}
}
fn visit_command(&mut self, command: Arc<LatexCommand>) {
self.print_token(&command.name);
for group in &command.groups {
self.visit_group(Arc::clone(&group));
}
}
fn visit_text(&mut self, text: Arc<LatexText>) {
for word in &text.words {
self.print_token(word);
}
}
fn visit_comma(&mut self, comma: Arc<LatexComma>) {
self.print_token(&comma.token);
}
fn visit_math(&mut self, math: Arc<LatexMath>) {
self.print_token(&math.token)
}
}
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