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@w0s/string-convert

v2.0.1

Published

Converts newlines in a string, `trim()`, half-width / full-width conversion, etc

Downloads

14

Readme

Converts newlines in a string, trim(), half-width / full-width conversion, etc

npm version test status

Examples

import StringConvert from '@w0s/string-convert';

StringConvert.convert('foo\r\nbar', {
  newline: 'LF',
}); // foo\nbar

StringConvert.convert('  foo  \r\n  bar  ', {
  trim: true,
}); // foo  \r\n  bar

StringConvert.convert('  Foo  \r\n\r\n  Bar      Baz💖  ', {
  newline: 'LF',
  trimMultiLine: true,
  noBlankLine: true,
  toHankakuEisu: true,
  toHankakuSpace: true,
  combineSpace: true,
  toLowerCase: true,
  table: {
    '💖': '⭐',
  },
}); // foo\nbar baz⭐

try {
  StringConvert.convert('foo \r\n bar \n baz', {});
} catch {
  // A string with mixed newline codes are not supported
}

* Newline codes CR, LF, and CR+LF are supported.

Methods

/* Converts newline */
type Newline = 'CR' | 'LF' | 'CRLF';

/* Proprietary conversion table */
type Table = Record<string, string>;

/* Convert options */
interface Option {
  newline?: Newline; // Converts newline
  trim?: boolean; // Remove whitespace at both ends (Only one of `trim` and `trimMultiLine` can be specified)
  trimMultiLine?: boolean; // Remove whitespace at both ends of each line (Only one of `trim` and `trimMultiLine` can be specified)
  noBlankLine?: boolean; // Delete blank lines
  toHankakuEisu?: boolean; // Make alphanumeric characters half-width (Only one of `toHankakuEisu` and toZenkakuEisu` can be specified)
  toZenkakuEisu?: boolean; // Make alphanumeric characters full-width (Only one of `toHankakuEisu` and toZenkakuEisu` can be specified)
  toHankakuSpace?: boolean; // Make full-width space half-width (IDEOGRAPHIC SPACE: U+3000 → SPACE: U+0020)
  combineSpace?: boolean; // Consolidate contiguous spaces
  toLowerCase?: boolean; // Make the alphabet lowercase (Only one of `toLowerCase` and `toUpperCase` can be specified)
  toUpperCase?: boolean; // Make the alphabet uppercase (Only one of `toLowerCase` and `toUpperCase` can be specified)
  table?: Table; // Proprietary conversion table (An associative array that specifies the character string before conversion as the key and the character string after conversion as the value)
}