charcode 1.1.3

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Character code constants.

Build Status Pub

These libraries define symbolic names for some character codes.

Using #

Import either one of the libraries:

import "package:charcode/ascii.dart";
import "package:charcode/html_entity.dart";

or import both libraries using the charcode.dart library:

import "package:charcode/charcode.dart";

Naming #

The character names are preceded by a $ to avoid conflicting with other variables due to the short and common names (for example "$i").

The characters that are valid in a Dart identifier directly follow the $. Examples: $_, $a, $B and $3. Other characters are given symbolic names.

The names of letters are lower-case for lower-case letters, and mixed- or upper-case for upper-case letters. The names of symbols are all lower-case, and omit suffixes like "sign", "symbol" and "mark". Examples: $plus, $exclamation

The ascii.dart library defines a symbolic name for each ASCII character. For some characters, it has more than one name. For example the common $tab and the official $ht for the horizontal tab.

The html_entity.dart library defines a constant for each HTML 4.01 character entity, using the standard entity abbreviation, including its case. Examples: $nbsp for &nbps;, $aring for the lower-case å and $Aring for the upper-case Å.

The HTML entities includes all characters in the Latin-1 code page, greek letters and some mathematical symbols.

The charcode.dart library just exports both ascii.dart and html_entity.dart.

Rationale #

The Dart language doesn't have character literals. If that ever happens, this library will be irrelevant. Until then, this library can be used for the most common characters. See request for character literals.

1.1.3 #

  • Added example, fixed recommended lints.

1.1.2 #

  • Updated the SDK constraint.

1.1.1 #

  • Spelling fixes.

  • Linting fixes.

1.1.0 #

  • Initial version

example/example.dart

// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:charcode/charcode.dart';

void main() {
  print(String.fromCharCodes([
    $E,
    $x,
    $a,
    $m,
    $p,
    $l,
    $e,
    $exclamation,
  ]));
}

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  charcode: ^1.1.3

2. Install it

You can install packages from the command line:

with pub:


$ pub get

with Flutter:


$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:charcode/charcode.dart';
  
Popularity:
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100
Health:
Code health derived from static analysis. [more]
100
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
100
Overall:
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Learn more about scoring.

We analyzed this package on Jul 2, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.13

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
Dev dependencies
pedantic ^1.0.0