mirror of
https://github.com/rzmk/czv.git
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e84c5bec8b
- Add relevant links to all READMEs and source code - Resolve clippy lints czv: - Add more docs for top-level items - Add suggestion to use builder methods instead of functions - Disable slice and slice tests until operation is complete czv-wasm: - Use tsify_next for allowing objects as parameters - Add nodejs example and instructions
50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
use crate::Result;
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use csv::ReaderBuilder;
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use serde::{Deserialize, Serialize};
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use tsify_next::Tsify;
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use wasm_bindgen::prelude::*;
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/// Options for `rowCount`.
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#[derive(Tsify, Serialize, Deserialize)]
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#[tsify(into_wasm_abi, from_wasm_abi)]
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pub struct RowCountOptions {
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/// CSV file data.
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pub file_data: String,
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#[tsify(optional)]
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/// Specify whether to include the header row (first row) in the row count.
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/// Default is false.
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pub include_header_row: Option<bool>,
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}
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/// Returns a count of the total number of rows.
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#[wasm_bindgen(skip_jsdoc, js_name = rowCount)]
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pub fn row_count(options: RowCountOptions) -> Result<usize> {
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let mut rdr = ReaderBuilder::new();
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rdr.has_headers(!options.include_header_row.unwrap_or(false));
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Ok(rdr
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.from_reader(options.file_data.as_bytes())
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.records()
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.count())
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}
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/// Options for `columnCount`.
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#[derive(Tsify, Serialize, Deserialize)]
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#[tsify(into_wasm_abi, from_wasm_abi)]
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pub struct ColumnCountOptions {
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/// CSV file data.
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pub file_data: String,
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}
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/// Returns a count of the total number of columns (fields).
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#[wasm_bindgen(skip_jsdoc, js_name = columnCount)]
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pub fn column_count(options: ColumnCountOptions) -> Result<usize> {
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let rdr = ReaderBuilder::new();
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Ok(rdr
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.from_reader(options.file_data.as_bytes())
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.headers()?
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.len())
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}
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