Function variable_range_without_sigil

src/linked_editing.rs:262–270

Convert a byte range for a `$varName` token into an LSP [`Range`] that excludes the leading `$` sigil. The `$` is skipped by advancing `start` by one byte. This is safe because `$` is a single-byte ASCII character and all PHP source files are UTF-8 (or ASCII-compatible).

(content: &str, start: usize, end: usize)

/// because `$` is a single-byte ASCII character and all PHP source
/// files are UTF-8 (or ASCII-compatible).
fn variable_range_without_sigil(content: &str, start: usize, end: usize) -> Range {
    // Skip the `$` at the start of the token.
    let name_start = start + 1;
    debug_assert!(
        name_start <= end,
        "variable token too short to have a name after $"
    );
    byte_range_to_lsp_range(content, name_start, end)
}

/// Collect all LSP [`Range`]s for a variable within the definition
/// region that contains `cursor_offset`.