cli_table 1.0.1

A Dart package that enhances the user experience by displaying static tabular data in terminal.

A Dart package that enhances the user experience by displaying static tabular data in terminal.

Features

• Display data in a tabular format within the terminal
• Easy to use API
• Color/background styling in the header through chalkdart
• Customize column width
• Column and row cell spans
• Content truncation based on predefined widths
• Horizontal content alignment (left/center/right)
• Vertical content alignment (top/center/bottom)
• Padding (left/right)
• Word wrapping options
• Per cell customization

Basic example

import 'package:cli_table/cli_table.dart';

void main() {
  final table = Table(
    header: ['Rel', 'Change', "By", "When"], // Set headers
    columnWidths: [10, 20, 20, 30], // Optionally set column widhts
  );

  // Table class extends dart List,
  // so you're free to use all the usual List methods
  table
    ..add(['v0.1', 'First test', '[e-mail]', '9 minutes ago'])
    ..add(['v0.1', 'Second test', '[e-mail]', '13 minutes ago']);

  // Call `toString()` to render the final table for output
  print(table.toString());
}

┌──────────┬────────────────────┬────────────────────┬────────────────────┐
│ Rel      │ Change             │ By                 │ When               │
├──────────┼────────────────────┼────────────────────┼────────────────────┤
│ v0.1     │ First test         │ [e-mail]  │ 9 minutes ago      │
├──────────┼────────────────────┼────────────────────┼────────────────────┤
│ v0.1     │ Second test        │ [e-mail]    │ 13 minutes ago     │
└──────────┴────────────────────┴────────────────────┴────────────────────┘

Table types and layouts

Horizontal tables

final table = Table(
  header: ['Index', 'Name'],
);

table.addAll([
  ['1.', 'First'],
  ['2.', 'Second'],
]);

print(table.toString());
// Outputs:
//
// ┌───────┬────────┐
// │ Index │ Name   │
// ├───────┼────────┤
// │ 1.    │ First  │
// ├───────┼────────┤
// │ 2.    │ Second │
// └───────┴────────┘

Vertical tables

final table = Table();

table.addAll([
  {'Some key': 'Some value'},
  {'Another key': 'Another value'},
]);

print(table.toString());
// Outputs:
//
// ┌─────────────┬───────────────┐
// │ Some key    │ Some value    │
// ├─────────────┼───────────────┤
// │ Another key │ Another value │
// └─────────────┴───────────────┘

Cross tables

Cross tables are very similar to vertical tables, with two key differences:

1. They require a header setting when instantiated that has an empty string as the first header
2. The individual rows take the general form of { "Header": ["Row", "Values"] }

final table = Table(header: ["", "Top Header 1", "Top Header 2"]);

table.addAll([
  {
    'Left Header 1': ['Value Row 1 Col 1', 'Value Row 1 Col 2']
  },
  {
    'Left Header 2': ['Value Row 2 Col 1', 'Value Row 2 Col 2']
  }
]);

print(table.toString());
// Outputs:
//
// ┌───────────────┬───────────────────┬───────────────────┐
// │               │ Top Header 1      │ Top Header 2      │
// ├───────────────┼───────────────────┼───────────────────┤
// │ Left Header 1 │ Value Row 1 Col 1 │ Value Row 1 Col 2 │
// ├───────────────┼───────────────────┼───────────────────┤
// │ Left Header 2 │ Value Row 2 Col 1 │ Value Row 2 Col 2 │
// └───────────────┴───────────────────┴───────────────────┘

Other usage examples with different table options

Wrap text on word boundaries

final table = Table(
  style: TableStyle(
    border: [], // Clear border style/color (default is ["gray"])
    header: [], // Clear header style/color (defaults to ['red'])
  ),
  columnWidths: [7, 9], // Requires fixed column widths
  wordWrap: true,
);

table.addAll([
  [
    'Hello how are you?',
    'I am fine thanks! Looooooong',
    ['Words that exceed', 'the columnWidth will', 'be truncated.'].join('\n'),
    ['Text is only', 'wrapped for', 'fixed width', 'columns.'].join('\n'),
  ]
]);

print(table.toString());
// Outputs:
//
// ┌───────┬─────────┬───────────────────┬──────────────┐
// │ Hello │ I am    │ Words that exceed │ Text is only │
// │ how   │ fine    │ the colWidth will │ wrapped for  │
// │ are   │ thanks! │ be truncated.     │ fixed width  │
// │ you?  │ Looooo… │                   │ columns.     │
// └───────┴─────────┴───────────────────┴──────────────┘

Use columnSpan to span columns

final table = Table();

table.addAll([
  [{'colSpan': 2, 'content': 'First'}], // Set custom column span
  [{'colSpan': 2, 'content': 'Second'}],
  ['Third', 'Fourth']
]);
// Outputs:
//
// ┌────────────────┐
// │ First          │
// ├────────────────┤
// │ Second         │
// ├───────┬────────┤
// │ Third │ Fourth │
// └───────┴────────┘

Use rowSpan to span rows

final table = Table();

table.addAll([
  [
    {'rowSpan': 2, 'content': 'First'}, // Set custom row span
    {'rowSpan': 2, 'content': 'Second', 'vAlign': VerticalAlign.center}, // Set custom horizontal alignment
    'hello'
  ],
  ['howdy']
]);
// Outputs:
//
// ┌───────┬────────┬────────┐
// │ First │        │ Third  │
// │       │ Second ├────────┤
// │       │        │ Fourth │
// └───────┴────────┴────────┘

Credits

• Automattic/cli-table
• jamestalmage/cli-table2
• cli-table/cli-table3