Merging upstream version 1.76.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 246 insertions, 0 deletions

diff --git a/vendor/toml_edit/src/error.rs b/vendor/toml_edit/src/error.rs
new file mode 100644
index 000000000..a98301981
--- /dev/null
+++ b/vendor/toml_edit/src/error.rs
@@ -0,0 +1,246 @@
+use std::error::Error as StdError;
+use std::fmt::{Display, Formatter, Result};
+
+/// Type representing a TOML parse error
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub struct TomlError {
+    message: String,
+    original: Option<String>,
+    keys: Vec<String>,
+    span: Option<std::ops::Range<usize>>,
+}
+
+impl TomlError {
+    #[cfg(feature = "parse")]
+    pub(crate) fn new(
+        error: winnow::error::ParseError<
+            crate::parser::prelude::Input<'_>,
+            winnow::error::ContextError,
+        >,
+        mut original: crate::parser::prelude::Input<'_>,
+    ) -> Self {
+        use winnow::stream::Stream;
+
+        let offset = error.offset();
+        let span = if offset == original.len() {
+            offset..offset
+        } else {
+            offset..(offset + 1)
+        };
+
+        let message = error.inner().to_string();
+        let original = original.finish();
+
+        Self {
+            message,
+            original: Some(
+                String::from_utf8(original.to_owned()).expect("original document was utf8"),
+            ),
+            keys: Vec::new(),
+            span: Some(span),
+        }
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn custom(message: String, span: Option<std::ops::Range<usize>>) -> Self {
+        Self {
+            message,
+            original: None,
+            keys: Vec::new(),
+            span,
+        }
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn add_key(&mut self, key: String) {
+        self.keys.insert(0, key);
+    }
+
+    /// What went wrong
+    pub fn message(&self) -> &str {
+        &self.message
+    }
+
+    /// The start/end index into the original document where the error occurred
+    pub fn span(&self) -> Option<std::ops::Range<usize>> {
+        self.span.clone()
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn set_span(&mut self, span: Option<std::ops::Range<usize>>) {
+        self.span = span;
+    }
+
+    #[cfg(feature = "serde")]
+    pub(crate) fn set_original(&mut self, original: Option<String>) {
+        self.original = original;
+    }
+}
+
+/// Displays a TOML parse error
+///
+/// # Example
+///
+/// TOML parse error at line 1, column 10
+///   |
+/// 1 | 00:32:00.a999999
+///   |          ^
+/// Unexpected `a`
+/// Expected `digit`
+/// While parsing a Time
+/// While parsing a Date-Time
+impl Display for TomlError {
+    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
+        let mut context = false;
+        if let (Some(original), Some(span)) = (&self.original, self.span()) {
+            context = true;
+
+            let (line, column) = translate_position(original.as_bytes(), span.start);
+            let line_num = line + 1;
+            let col_num = column + 1;
+            let gutter = line_num.to_string().len();
+            let content = original.split('\n').nth(line).expect("valid line number");
+
+            writeln!(
+                f,
+                "TOML parse error at line {}, column {}",
+                line_num, col_num
+            )?;
+            //   |
+            for _ in 0..=gutter {
+                write!(f, " ")?;
+            }
+            writeln!(f, "|")?;
+
+            // 1 | 00:32:00.a999999
+            write!(f, "{} | ", line_num)?;
+            writeln!(f, "{}", content)?;
+
+            //   |          ^
+            for _ in 0..=gutter {
+                write!(f, " ")?;
+            }
+            write!(f, "|")?;
+            for _ in 0..=column {
+                write!(f, " ")?;
+            }
+            // The span will be empty at eof, so we need to make sure we always print at least
+            // one `^`
+            write!(f, "^")?;
+            for _ in (span.start + 1)..(span.end.min(span.start + content.len())) {
+                write!(f, "^")?;
+            }
+            writeln!(f)?;
+        }
+        writeln!(f, "{}", self.message)?;
+        if !context && !self.keys.is_empty() {
+            writeln!(f, "in `{}`", self.keys.join("."))?;
+        }
+
+        Ok(())
+    }
+}
+
+impl StdError for TomlError {
+    fn description(&self) -> &'static str {
+        "TOML parse error"
+    }
+}
+
+fn translate_position(input: &[u8], index: usize) -> (usize, usize) {
+    if input.is_empty() {
+        return (0, index);
+    }
+
+    let safe_index = index.min(input.len() - 1);
+    let column_offset = index - safe_index;
+    let index = safe_index;
+
+    let nl = input[0..index]
+        .iter()
+        .rev()
+        .enumerate()
+        .find(|(_, b)| **b == b'\n')
+        .map(|(nl, _)| index - nl - 1);
+    let line_start = match nl {
+        Some(nl) => nl + 1,
+        None => 0,
+    };
+    let line = input[0..line_start].iter().filter(|b| **b == b'\n').count();
+
+    let column = std::str::from_utf8(&input[line_start..=index])
+        .map(|s| s.chars().count() - 1)
+        .unwrap_or_else(|_| index - line_start);
+    let column = column + column_offset;
+
+    (line, column)
+}
+
+#[cfg(test)]
+mod test_translate_position {
+    use super::*;
+
+    #[test]
+    fn empty() {
+        let input = b"";
+        let index = 0;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 0));
+    }
+
+    #[test]
+    fn start() {
+        let input = b"Hello";
+        let index = 0;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 0));
+    }
+
+    #[test]
+    fn end() {
+        let input = b"Hello";
+        let index = input.len() - 1;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, input.len() - 1));
+    }
+
+    #[test]
+    fn after() {
+        let input = b"Hello";
+        let index = input.len();
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, input.len()));
+    }
+
+    #[test]
+    fn first_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 2;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 2));
+    }
+
+    #[test]
+    fn end_of_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 5;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (0, 5));
+    }
+
+    #[test]
+    fn start_of_second_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 6;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (1, 0));
+    }
+
+    #[test]
+    fn second_line() {
+        let input = b"Hello\nWorld\n";
+        let index = 8;
+        let position = translate_position(&input[..], index);
+        assert_eq!(position, (1, 2));
+    }
+}