diff options
author | Martin Fischer <martin@push-f.com> | 2023-09-28 10:14:21 +0200 |
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committer | Martin Fischer <martin@push-f.com> | 2023-09-28 11:00:01 +0200 |
commit | 70b92eda9a38c2f0e093c0f74cafb6398f97b58e (patch) | |
tree | 9b8d020445cc974749362ba73fdc30e5e432bfdf /examples | |
parent | 3a3b40e1eb715ec97dc873e31c726c2f3dd8dcdf (diff) |
docs: add errors example
Diffstat (limited to 'examples')
-rw-r--r-- | examples/errors.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/examples/errors.rs b/examples/errors.rs new file mode 100644 index 0000000..5603b9c --- /dev/null +++ b/examples/errors.rs @@ -0,0 +1,38 @@ +//! Annotates errors in the HTML read from stdin. +//! Try it out with e.g.: +//! +//! ```sh +//! printf "The pirate says &arrrrr;" | cargo run --example errors +//! ``` + +use codespan_reporting::{ + diagnostic::{Diagnostic, Label}, + files::SimpleFiles, + term, + term::termcolor::{ColorChoice, StandardStream}, +}; +use html5tokenizer::{offset::PosTrackingReader, NaiveParser, TracingEmitter}; + +fn main() { + let input = std::io::read_to_string(std::io::stdin()).unwrap(); + let input_clone = input.clone(); + let mut parser = + NaiveParser::new_with_emitter(PosTrackingReader::new(&input), TracingEmitter::default()); + + let mut files = SimpleFiles::new(); + let file_id = files.add("stdin", input_clone); + + let mut labels = Vec::new(); + + for _ in parser.by_ref() {} + + for (error, span) in parser.emitter_mut().drain_errors() { + labels.push(Label::primary(file_id, span).with_message(error.code())); + } + + let diagnostic = Diagnostic::error().with_labels(labels); + + let mut writer = StandardStream::stdout(ColorChoice::Auto); + let config = codespan_reporting::term::Config::default(); + term::emit(&mut writer, &config, &files, &diagnostic).unwrap(); +} |