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//! CSV impl and reexported types
extern crate csv;
pub use self::csv::{Reader, Writer, Result, ReaderBuilder};
use std::path::Path;
use std::io::{Read, Write};
impl<'a> super::TableSlice<'a> {
/// Write the table to the specified writer.
pub fn to_csv<W: Write>(&self, w: W) -> Result<Writer<W>> {
self.to_csv_writer(Writer::from_writer(w))
}
/// Write the table to the specified writer.
///
/// This allows for format customisation.
pub fn to_csv_writer<W: Write>(&self,
mut writer: Writer<W>)
-> Result<Writer<W>> {
for title in self.titles {
writer.write_record(title.iter().map(|c| c.get_content()))?;
}
for row in self.rows {
writer.write_record(row.iter().map(|c| c.get_content()))?;
}
writer.flush()?;
Ok(writer)
}
}
impl super::Table {
/// Create a table from a CSV string
///
/// For more customisability use `from_csv()`
pub fn from_csv_string(csv_s: &str) -> Result<Self> {
Ok(Self::from_csv(
&mut ReaderBuilder::new()
.has_headers(false)
.from_reader(csv_s.as_bytes())))
}
/// Create a table from a CSV file
///
/// For more customisability use `from_csv()`
pub fn from_csv_file<P: AsRef<Path>>(csv_p: P) -> Result<Self> {
Ok(Self::from_csv(
&mut ReaderBuilder::new()
.has_headers(false)
.from_path(csv_p)?))
}
/// Create a table from a CSV reader
pub fn from_csv<R: Read>(reader: &mut Reader<R>) -> Self {
Self::init(reader
.records()
.map(|row| {
super::row::Row::new(row.unwrap()
.into_iter()
.map(|cell| super::cell::Cell::new(&cell))
.collect())
})
.collect())
}
/// Write the table to the specified writer.
pub fn to_csv<W: Write>(&self, w: W) -> Result<Writer<W>> {
self.as_ref().to_csv(w)
}
/// Write the table to the specified writer.
///
/// This allows for format customisation.
pub fn to_csv_writer<W: Write>(&self, writer: Writer<W>) -> Result<Writer<W>> {
self.as_ref().to_csv_writer(writer)
}
}
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