mirror of
https://github.com/shivammathur/setup-php.git
synced 2024-11-23 04:11:06 +07:00
112 lines
3.3 KiB
JavaScript
112 lines
3.3 KiB
JavaScript
var baseToString = require('./_baseToString'),
|
|
castSlice = require('./_castSlice'),
|
|
hasUnicode = require('./_hasUnicode'),
|
|
isObject = require('./isObject'),
|
|
isRegExp = require('./isRegExp'),
|
|
stringSize = require('./_stringSize'),
|
|
stringToArray = require('./_stringToArray'),
|
|
toInteger = require('./toInteger'),
|
|
toString = require('./toString');
|
|
|
|
/** Used as default options for `_.truncate`. */
|
|
var DEFAULT_TRUNC_LENGTH = 30,
|
|
DEFAULT_TRUNC_OMISSION = '...';
|
|
|
|
/** Used to match `RegExp` flags from their coerced string values. */
|
|
var reFlags = /\w*$/;
|
|
|
|
/**
|
|
* Truncates `string` if it's longer than the given maximum string length.
|
|
* The last characters of the truncated string are replaced with the omission
|
|
* string which defaults to "...".
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category String
|
|
* @param {string} [string=''] The string to truncate.
|
|
* @param {Object} [options={}] The options object.
|
|
* @param {number} [options.length=30] The maximum string length.
|
|
* @param {string} [options.omission='...'] The string to indicate text is omitted.
|
|
* @param {RegExp|string} [options.separator] The separator pattern to truncate to.
|
|
* @returns {string} Returns the truncated string.
|
|
* @example
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino');
|
|
* // => 'hi-diddly-ho there, neighbo...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'length': 24,
|
|
* 'separator': ' '
|
|
* });
|
|
* // => 'hi-diddly-ho there,...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'length': 24,
|
|
* 'separator': /,? +/
|
|
* });
|
|
* // => 'hi-diddly-ho there...'
|
|
*
|
|
* _.truncate('hi-diddly-ho there, neighborino', {
|
|
* 'omission': ' [...]'
|
|
* });
|
|
* // => 'hi-diddly-ho there, neig [...]'
|
|
*/
|
|
function truncate(string, options) {
|
|
var length = DEFAULT_TRUNC_LENGTH,
|
|
omission = DEFAULT_TRUNC_OMISSION;
|
|
|
|
if (isObject(options)) {
|
|
var separator = 'separator' in options ? options.separator : separator;
|
|
length = 'length' in options ? toInteger(options.length) : length;
|
|
omission = 'omission' in options ? baseToString(options.omission) : omission;
|
|
}
|
|
string = toString(string);
|
|
|
|
var strLength = string.length;
|
|
if (hasUnicode(string)) {
|
|
var strSymbols = stringToArray(string);
|
|
strLength = strSymbols.length;
|
|
}
|
|
if (length >= strLength) {
|
|
return string;
|
|
}
|
|
var end = length - stringSize(omission);
|
|
if (end < 1) {
|
|
return omission;
|
|
}
|
|
var result = strSymbols
|
|
? castSlice(strSymbols, 0, end).join('')
|
|
: string.slice(0, end);
|
|
|
|
if (separator === undefined) {
|
|
return result + omission;
|
|
}
|
|
if (strSymbols) {
|
|
end += (result.length - end);
|
|
}
|
|
if (isRegExp(separator)) {
|
|
if (string.slice(end).search(separator)) {
|
|
var match,
|
|
substring = result;
|
|
|
|
if (!separator.global) {
|
|
separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
|
|
}
|
|
separator.lastIndex = 0;
|
|
while ((match = separator.exec(substring))) {
|
|
var newEnd = match.index;
|
|
}
|
|
result = result.slice(0, newEnd === undefined ? end : newEnd);
|
|
}
|
|
} else if (string.indexOf(baseToString(separator), end) != end) {
|
|
var index = result.lastIndexOf(separator);
|
|
if (index > -1) {
|
|
result = result.slice(0, index);
|
|
}
|
|
}
|
|
return result + omission;
|
|
}
|
|
|
|
module.exports = truncate;
|