Struct CalamineSourceReader 

pub struct CalamineSourceReader { /* private fields */ }

Default SourceReader backed by calamine. Assumes the source is laid out as a single header row at row 1, followed by data rows. (xl3 0.x’s source_table = 1 convention.) The workbook is held as an in-memory byte buffer so the styles pass can re-open the same archive cheaply — and so a Vec<u8> host (browser/Node) and a file host share the exact same code path.

Implementations

impl CalamineSourceReader

pub fn open(path: &Path) -> Result<Self>

pub fn open_bytes(bytes: Vec<u8>) -> Result<Self>

In-memory variant — the WASM convert() entry point feeds the data workbook in this way.

pub fn first_sheet(&self) -> Option<String>

Convenience: when only one source is named in __config__, load the first non-empty sheet.

pub fn resolve_sheet_name(&self, pattern: &str) -> Option<String>

Resolve a source_sheet configuration value to an actual sheet name in the workbook. Accepts:

• exact name ("Data") — returned as-is iff present
• prefix glob ("Data_*") — first sheet in workbook order whose name starts with the literal prefix (xl3 evaluation.md “Source Data Model”)

Trait Implementations

impl SourceReader for CalamineSourceReader

fn read(&mut self, sheet: &str, table: &SourceTable) -> Result<SourceData>