pub fn draw_table<'a, W, HeaderIter, RowIter, Heap>(
    writer: &'a mut W,
    heap: &Heap,
    headers: HeaderIter,
    rows: RowIter,
    value_types: &'a [Type],
    ) -> io::Result<()>
where
    W: io::Write,
    Heap: heap::Heap,
    HeaderIter: Clone + IntoIterator<Item = &'a str>,
    RowIter: IntoIterator<Item = &'a [Value]>,
{
    let mut fmt_rows: Vec<Vec<String>> = Vec::new();
    let mut widths: Vec<usize> = headers.clone().into_iter().map(|h| h.chars().count()).collect();

    for row in rows {
        let mut fmt_row = Vec::with_capacity(value_types.len());
        for ((&value, &value_type), w) in row.iter().zip(value_types).zip(widths.iter_mut()) {
            let mut fmt_value = String::new();
            write_value(&mut fmt_value, heap, value, value_type).unwrap();
            *w = fmt_value.chars().count().max(*w);
            fmt_row.push(fmt_value);
        }
        fmt_rows.push(fmt_row);
    }

    let dashes: Vec<String> = widths.iter().map(|&w| "─".repeat(w)).collect();

    format_row(writer, "┌─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┬─", "─┐\n")?;
    format_row(writer, "│ ", headers.into_iter(), widths.iter().cloned(), " │ ", " │\n")?;
    format_row(writer, "├─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┼─", "─┤\n")?;
    for row in fmt_rows {
        format_row(writer, "│ ", row.iter().map(|ref s| &s[..]), widths.iter().cloned(), " │ ", " │\n")?;
    }
    format_row(writer, "└─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┴─", "─┘\n")?;

    Ok(())
}
/// Format values into a table using box drawing characters.
Format values into a table using box drawing characters.
Format values into a table using box drawing characters .
pub fn draw_table<'a, W, HeaderIter, RowIter, Heap>(
    writer: &'a mut W,
    heap: &Heap,
    headers: HeaderIter,
    rows: RowIter,
    value_types: &'a [Type],
    ) -> io::Result<()>
where
    W: io::Write,
    Heap: heap::Heap,
    HeaderIter: Clone + IntoIterator<Item = &'a str>,
    RowIter: IntoIterator<Item = &'a [Value]>,
{
    let mut fmt_rows: Vec<Vec<String>> = Vec::new();
    let mut widths: Vec<usize> = headers.clone().into_iter().map(|h| h.chars().count()).collect();
    for row in rows {
        let mut fmt_row = Vec::with_capacity(value_types.len());
        for ((&value, &value_type), w) in row.iter().zip(value_types).zip(widths.iter_mut()) {
            let mut fmt_value = String::new();
            write_value(&mut fmt_value, heap, value, value_type).unwrap();
            *w = fmt_value.chars().count().max(*w);
            fmt_row.push(fmt_value);
        }
        fmt_rows.push(fmt_row);
    }
    let dashes: Vec<String> = widths.iter().map(|&w| "─".repeat(w)).collect();
    format_row(writer, "┌─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┬─", "─┐\n")?;
    format_row(writer, "│ ", headers.into_iter(), widths.iter().cloned(), " │ ", " │\n")?;
    format_row(writer, "├─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┼─", "─┤\n")?;
    for row in fmt_rows {
        format_row(writer, "│ ", row.iter().map(|ref s| &s[..]), widths.iter().cloned(), " │ ", " │\n")?;
    }
    format_row(writer, "└─", dashes.iter().map(|ref s| &s[..]), widths.iter().cloned(), "─┴─", "─┘\n")?;
    Ok(())
}
pub fn draw_table < ' a , W , HeaderIter , RowIter , Heap > ( writer : & ' a mut W , heap : & Heap , headers : HeaderIter , rows : RowIter , value_types : & ' a [ Type ] , ) -> io :: Result < ( ) > where W : io :: Write , Heap : heap :: Heap , HeaderIter : Clone + IntoIterator < Item = & ' a str > , RowIter : IntoIterator < Item = & ' a [ Value ] > , { let mut fmt_rows : Vec < Vec < String > > = Vec :: new ( ) ; let mut widths : Vec < usize > = headers . clone ( ) . into_iter ( ) . map ( | h | h . chars ( ) . count ( ) ) . collect ( ) ; for row in rows { let mut fmt_row = Vec :: with_capacity ( value_types . len ( ) ) ; for ( ( & value , & value_type ) , w ) in row . iter ( ) . zip ( value_types ) . zip ( widths . iter_mut ( ) ) { let mut fmt_value = String :: new ( ) ; write_value ( & mut fmt_value , heap , value , value_type ) . unwrap ( ) ; * w = fmt_value . chars ( ) . count ( ) . max ( * w ) ; fmt_row . push ( fmt_value ) ; } fmt_rows . push ( fmt_row ) ; } let dashes : Vec < String > = widths . iter ( ) . map ( | & w | " r e peat(w ) ) . c o llect() ; format_row ( writer , " a s es.ite r ().m a p ( |re f s|  s [ . ] ) ,  w i d hs.ite r ().c l o n ed(),  " ─ ┬ " ? ; format_row ( writer , " h aders.i n to_iter() , w dths.i t er() . c l oned() , " │ │ n format_row ( writer , " a s es.ite r ().m a p ( |re f s|  s [ . ] ) ,  w i d hs.ite r ().c l o n ed(),  " ─ ┼ " ? ; for row in fmt_rows { format_row ( writer , " r w.i t er() . m a p(| r e f s & [ . . ]) , w dths.i t er() . c l oned() , " │ │ n } format_row ( writer , " a s es.ite r ().m a p ( |re f s|  s [ . ] ) ,  w i d hs.ite r ().c l o n ed(),  " ─ ┴ " ? ; Ok ( ( ) ) }
Format values into a table using box drawing characters.
Format values into a table using box drawing characters .
writer
&'a mut W
heap
&Heap
headers
HeaderIter
rows
RowIter
value_types
&'a [Type]
writer
&'a mut W
heap
&Heap
headers
HeaderIter
rows
RowIter
value_types
&'a [Type]