A formatted and aligned table printer written in rust.
Copyright © 2016 Pierre-Henri Symoneaux
THIS SOFTWARE IS DISTRIBUTED WITHOUT ANY WARRANTY
Check LICENSE.txt file for more information.
More often, you will include the library as a dependency to your project. In order to do this, add the following lines to your Cargo.toml file :
toml
[dependencies]
prettytable-rs = "^0.6"
You can start using it the following way :
```rust
use prettytable::Table; use prettytable::row::Row; use prettytable::cell::Cell;
fn main() { // Create the table let mut table = Table::new(); // Add a row table.addrow(row!["ABC", "DEFG", "HIJKLMN"]); table.addrow(row!["foobar", "bar", "foo"]); // Or the more complicated way : table.add_row(Row::new(vec![ Cell::new("foobar2"), Cell::new("bar2"), Cell::new("foo2")]) ); table.printstd(); } ```
This code will produce the following output :
text
+---------+------+---------+
| ABC | DEFG | HIJKLMN |
+---------+------+---------+
| foobar | bar | foo |
+---------+------+---------+
| foobar2 | bar2 | foo2 |
+---------+------+---------+
To make the code simpler, the table! macro is there for you. The following code would produce the same output :
```rust
fn main() { let table = table!(["ABC", "DEFG", "HIJKLMN"], ["foobar", "bar", "foo"], ["foobar2", "bar2", "foo2"] ); table.printstd(); } ```
Using the ptable! macro would even print it on stdout for you.
Tables also support multiline cells content. As a consequence, you can print a table into another table (yo dawg ;).
For example, the following code
rust
let table1 = table!(["ABC", "DEFG", "HIJKLMN"],
["foobar", "bar", "foo"],
["foobar2", "bar2", "foo2"]
);
let table2 = table!(["Title 1", "Title 2"],
["This is\na multiline\ncell", "foo"],
["Yo dawg ;) You can even\nprint tables\ninto tables", table1]
);
table2.printstd();
Would print the following text :
text
+-------------------------+------------------------------+
| Title 1 | Title 2 |
+-------------------------+------------------------------+
| This is | foo |
| a multiline | |
| cell | |
+-------------------------+------------------------------+
| Yo dawg ;) You can even | +---------+------+---------+ |
| print tables | | ABC | DEFG | HIJKLMN | |
| into tables | +---------+------+---------+ |
| | | foobar | bar | foo | |
| | +---------+------+---------+ |
| | | foobar2 | bar2 | foo2 | |
| | +---------+------+---------+ |
+-------------------------+------------------------------+
Rows may have different numbers of cells. The table will automatically adapt to the largest row by printing additional empty cells in smaller rows.
Tables can be added some style like colors (background / foreground), bold, and italic, thanks to the term crate.
You can add term style attributes to cells programmatically :
```rust
extern crate term;
use term::{Attr, color};
(...)
table.addrow(Row::new(vec![ Cell::new("foobar2") .withstyle(Attr::ForegroundColor(color::GREEN)) .withstyle(Attr::Bold), Cell::new("bar2") .withstyle(Attr::ForegroundColor(color::RED)), Cell::new("foo2")]) ); ```
Or you can use the style string :
rust
Cell::new("foo2").style_spec("FrByc")
Where FrBybc means Foreground: red, Background: yellow, bold, center
With macros it's even simpler :
In rows, for each cells :
rust
row![FrByb->"ABC", FrByb->"DEFG", "HIJKLMN"];
Or for the whole row :
rust
row![FY => "styled", "bar", "foo"];
In tables, for each cells :
rust
table!([FrBybl->"A", FrBybc->"B", FrBybr->"C"], [123, 234, 345, 456]);
Or for each rows :
rust
table!([Frb => "A", "B", "C"], [Frb => 1, 2, 3, 4], [1, 2, 3]);
Or a mix :
rust
table!([Frb => "A", "B", "C"], [Frb->1, Fgi->2, 3, 4], [1, 2, 3]);
Capital letters are for bright colors. Eg : * R : Bright Red * B : Bright Blue * ... and so on ...
Tables can be sliced into immutable borrowed subtables.
Slices are of type prettytable::TableSlice<'a>.
For example
rust
use prettytable::Slice;
(...)
let slice = table.slice(2..5);
table.printstd();
Would print a table with only lines 2, 3 and 4 from table.
Other Range syntax are supported. For example :
rust
table.slice(..); // Returns a borrowed immutable table with all rows
table.slice(2..); // Returns a table with rows starting at index 2
table.slice(..3); // Returns a table with rows until the one at index 3
You can customize the look and feel of a table by providing it a prettytable::format::TableFormat.
For example you can change the characters used for borders, junctions, column separations or line separations.
To proceed, you can create a new TableFormat object and call the setter methods to configure it,
or you can use the more convenient prettytable::format::FormatBuilder structure.
For example :
rust
let mut table = /* Initialize table */;
let format = format::FormatBuilder::new()
.column_separator('|')
.borders('|')
.separators(
&[format::LinePosition::Top, format::LinePosition::Bottom],
format::LineSeparator::new('-', '+', '+', '+')
)
.padding(1, 1)
.build();
table.set_format(format);
Would give a table like the following
+-------------+------------+
| Title 1 | Title 2 |
| Value 1 | Value 2 |
| Value three | Value four |
+-------------+------------+
For convenience, some predefined formats are provided in the module prettytable::format::consts.
For example :
rust
table.set_format(*format::consts::FORMAT_NO_LINESEP_WITH_TITLE);
Would give a table like the following
+-------------+------------+
| Title 1 | Title 2 |
+-------------+------------+
| Value 1 | Value 2 |
| Value three | Value four |
+-------------+------------+
or
rust
table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
Would give
Title 1 | Title 2
------------+------------
Value 1 | Value 2
Value three | Value four
Check API documentation for the full list of available predefined formats
Additional examples are provided in documentation and in examples directory