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Made parse trace output a bit nicer

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Used ... instead of whitespace, removed extraneous "Production"
This commit is contained in:
greg 2019-10-21 19:11:27 -07:00
parent bb87a87848
commit 8656992945
1 changed files with 3 additions and 2 deletions
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5
schala-lang/language/src/parsing.rs
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@ -262,12 +262,13 @@ impl Parser {
pub fn format_parse_trace(&self) -> String { pub fn format_parse_trace(&self) -> String {
let mut buf = String::new(); let mut buf = String::new();
buf.push_str("Parse productions:\n");
for r in self.parse_record.iter() { for r in self.parse_record.iter() {
let mut indent = String::new(); let mut indent = String::new();
for _ in 0..r.level { for _ in 0..r.level {
indent.push(' '); indent.push('.');
} }
buf.push_str(&format!("{}Production `{}`, token: {}\n", indent, r.production_name, r.next_token)) buf.push_str(&format!("{}`{}`, next token: {}\n", indent, r.production_name, r.next_token))
} }
buf buf
} }