debian-mirror-gitlab/app/assets/javascripts/lib/utils/text_utility.js

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import { isString, memoize } from 'lodash';
import {
TRUNCATE_WIDTH_DEFAULT_WIDTH,
TRUNCATE_WIDTH_DEFAULT_FONT_SIZE,
} from '~/lib/utils/constants';
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import { allSingleQuotes } from '~/lib/utils/regexp';
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/**
* Adds a , to a string composed by numbers, at every 3 chars.
*
* 2333 -> 2,333
* 232324 -> 232,324
*
* @param {String} text
* @returns {String}
*/
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export const addDelimiter = (text) =>
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text ? text.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',') : text;
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/**
* Returns '99+' for numbers bigger than 99.
*
* @param {Number} count
* @return {Number|String}
*/
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export const highCountTrim = (count) => (count > 99 ? '99+' : count);
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/**
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* Converts first char to uppercase and replaces the given separator with spaces
* @param {String} string - The string to humanize
* @param {String} separator - The separator used to separate words (defaults to "_")
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* @requires {String}
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* @returns {String}
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*/
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export const humanize = (string, separator = '_') => {
const replaceRegex = new RegExp(separator, 'g');
return string.charAt(0).toUpperCase() + string.replace(replaceRegex, ' ').slice(1);
};
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/**
* Replaces underscores with dashes
* @param {*} str
* @returns {String}
*/
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export const dasherize = (str) => str.replace(/[_\s]+/g, '-');
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/**
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* Replaces whitespace and non-sluggish characters with a given separator
* @param {String} str - The string to slugify
* @param {String=} separator - The separator used to separate words (defaults to "-")
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* @returns {String}
*/
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export const slugify = (str, separator = '-') => {
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const slug = str
.trim()
.toLowerCase()
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.replace(/[^a-zA-Z0-9_.-]+/g, separator)
// Remove any duplicate separators or separator prefixes/suffixes
.split(separator)
.filter(Boolean)
.join(separator);
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return slug === separator ? '' : slug;
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};
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/**
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* Replaces whitespace and non-sluggish characters with underscores
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* @param {String} str
* @returns {String}
*/
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export const slugifyWithUnderscore = (str) => slugify(str, '_');
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/**
* Truncates given text
*
* @param {String} string
* @param {Number} maxLength
* @returns {String}
*/
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export const truncate = (string, maxLength) => {
if (string.length - 1 > maxLength) {
return `${string.substr(0, maxLength - 1)}`;
}
return string;
};
/**
* This function calculates the average char width. It does so by placing a string in the DOM and measuring the width.
* NOTE: This will cause a reflow and should be used sparsely!
* The default fontFamily is 'sans-serif' and 12px in ECharts, so that is the default basis for calculating the average with.
* https://echarts.apache.org/en/option.html#xAxis.nameTextStyle.fontFamily
* https://echarts.apache.org/en/option.html#xAxis.nameTextStyle.fontSize
* @param {Object} options
* @param {Number} options.fontSize style to size the text for measurement
* @param {String} options.fontFamily style of font family to measure the text with
* @param {String} options.chars string of chars to use as a basis for calculating average width
* @return {Number}
*/
const getAverageCharWidth = memoize(function getAverageCharWidth(options = {}) {
const {
fontSize = 12,
fontFamily = 'sans-serif',
// eslint-disable-next-line @gitlab/require-i18n-strings
chars = ' ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
} = options;
const div = document.createElement('div');
div.style.fontFamily = fontFamily;
div.style.fontSize = `${fontSize}px`;
// Place outside of view
div.style.position = 'absolute';
div.style.left = -1000;
div.style.top = -1000;
div.innerHTML = chars;
document.body.appendChild(div);
const width = div.clientWidth;
document.body.removeChild(div);
return width / chars.length / fontSize;
});
/**
* This function returns a truncated version of `string` if its estimated rendered width is longer than `maxWidth`,
* otherwise it will return the original `string`
* Inspired by https://bl.ocks.org/tophtucker/62f93a4658387bb61e4510c37e2e97cf
* @param {String} string text to truncate
* @param {Object} options
* @param {Number} options.maxWidth largest rendered width the text may have
* @param {Number} options.fontSize size of the font used to render the text
* @return {String} either the original string or a truncated version
*/
export const truncateWidth = (string, options = {}) => {
const {
maxWidth = TRUNCATE_WIDTH_DEFAULT_WIDTH,
fontSize = TRUNCATE_WIDTH_DEFAULT_FONT_SIZE,
} = options;
const { truncateIndex } = string.split('').reduce(
(memo, char, index) => {
let newIndex = index;
if (memo.width > maxWidth) {
newIndex = memo.truncateIndex;
}
return { width: memo.width + getAverageCharWidth() * fontSize, truncateIndex: newIndex };
},
{ width: 0, truncateIndex: 0 },
);
return truncate(string, truncateIndex);
};
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/**
* Truncate SHA to 8 characters
*
* @param {String} sha
* @returns {String}
*/
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export const truncateSha = (sha) => sha.substring(0, 8);
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const ELLIPSIS_CHAR = '…';
export const truncatePathMiddleToLength = (text, maxWidth) => {
let returnText = text;
let ellipsisCount = 0;
while (returnText.length >= maxWidth) {
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const textSplit = returnText.split('/').filter((s) => s !== ELLIPSIS_CHAR);
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if (textSplit.length === 0) {
// There are n - 1 path separators for n segments, so 2n - 1 <= maxWidth
const maxSegments = Math.floor((maxWidth + 1) / 2);
return new Array(maxSegments).fill(ELLIPSIS_CHAR).join('/');
}
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const middleIndex = Math.floor(textSplit.length / 2);
returnText = textSplit
.slice(0, middleIndex)
.concat(
new Array(ellipsisCount + 1).fill().map(() => ELLIPSIS_CHAR),
textSplit.slice(middleIndex + 1),
)
.join('/');
ellipsisCount += 1;
}
return returnText;
};
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/**
* Capitalizes first character
*
* @param {String} text
* @return {String}
*/
export function capitalizeFirstCharacter(text) {
return `${text[0].toUpperCase()}${text.slice(1)}`;
}
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/**
* Returns the first character capitalized
*
* If falsey, returns empty string.
*
* @param {String} text
* @return {String}
*/
export function getFirstCharacterCapitalized(text) {
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return text ? text.charAt(0).toUpperCase() : '';
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}
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/**
* Replaces all html tags from a string with the given replacement.
*
* @param {String} string
* @param {*} replace
* @returns {String}
*/
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export const stripHtml = (string, replace = '') => {
if (!string) return string;
return string.replace(/<[^>]*>/g, replace);
};
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/**
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* Converts a snake_cased string to camelCase.
* Leading and trailing underscores are ignored.
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*
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* @param {String} string The snake_cased string to convert
* @returns {String} A camelCased version of the string
*
* @example
*
* // returns "aSnakeCasedString"
* convertToCamelCase('a_snake_cased_string')
*
* // returns "_leadingUnderscore"
* convertToCamelCase('_leading_underscore')
*
* // returns "trailingUnderscore_"
* convertToCamelCase('trailing_underscore_')
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*/
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export const convertToCamelCase = (string) =>
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string.replace(/([a-z0-9])_([a-z0-9])/gi, (match, p1, p2) => `${p1}${p2.toUpperCase()}`);
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/**
* Converts camelCase string to snake_case
*
* @param {*} string
*/
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export const convertToSnakeCase = (string) =>
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slugifyWithUnderscore((string.match(/([a-zA-Z][^A-Z]*)/g) || [string]).join(' '));
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/**
* Converts a sentence to lower case from the second word onwards
* e.g. Hello World => Hello world
*
* @param {*} string
*/
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export const convertToSentenceCase = (string) => {
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const splitWord = string.split(' ').map((word, index) => (index > 0 ? word.toLowerCase() : word));
return splitWord.join(' ');
};
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/**
* Converts a sentence to title case
* e.g. Hello world => Hello World
*
* @param {String} string
* @returns {String}
*/
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export const convertToTitleCase = (string) => string.replace(/\b[a-z]/g, (s) => s.toUpperCase());
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const unicodeConversion = [
[/[ÀÁÂÃÅĀĂĄ]/g, 'A'],
[/[Æ]/g, 'AE'],
[/[ÇĆĈĊČ]/g, 'C'],
[/[ÈÉÊËĒĔĖĘĚ]/g, 'E'],
[/[ÌÍÎÏĨĪĬĮİ]/g, 'I'],
[/[Ððĥħ]/g, 'h'],
[/[ÑŃŅŇʼn]/g, 'N'],
[/[ÒÓÔÕØŌŎŐ]/g, 'O'],
[/[ÙÚÛŨŪŬŮŰŲ]/g, 'U'],
[/[ÝŶŸ]/g, 'Y'],
[/[Þñþńņň]/g, 'n'],
[/[ߌŜŞŠ]/g, 'S'],
[/[àáâãåāăąĸ]/g, 'a'],
[/[æ]/g, 'ae'],
[/[çćĉċč]/g, 'c'],
[/[èéêëēĕėęě]/g, 'e'],
[/[ìíîïĩīĭį]/g, 'i'],
[/[òóôõøōŏő]/g, 'o'],
[/[ùúûũūŭůűų]/g, 'u'],
[/[ýÿŷ]/g, 'y'],
[/[ĎĐ]/g, 'D'],
[/[ďđ]/g, 'd'],
[/[ĜĞĠĢ]/g, 'G'],
[/[ĝğġģŊŋſ]/g, 'g'],
[/[ĤĦ]/g, 'H'],
[/[ıśŝşš]/g, 's'],
[/[IJ]/g, 'IJ'],
[/[ij]/g, 'ij'],
[/[Ĵ]/g, 'J'],
[/[ĵ]/g, 'j'],
[/[Ķ]/g, 'K'],
[/[ķ]/g, 'k'],
[/[ĹĻĽĿŁ]/g, 'L'],
[/[ĺļľŀł]/g, 'l'],
[/[Œ]/g, 'OE'],
[/[œ]/g, 'oe'],
[/[ŔŖŘ]/g, 'R'],
[/[ŕŗř]/g, 'r'],
[/[ŢŤŦ]/g, 'T'],
[/[ţťŧ]/g, 't'],
[/[Ŵ]/g, 'W'],
[/[ŵ]/g, 'w'],
[/[ŹŻŽ]/g, 'Z'],
[/[źżž]/g, 'z'],
[/ö/g, 'oe'],
[/ü/g, 'ue'],
[/ä/g, 'ae'],
// eslint-disable-next-line @gitlab/require-i18n-strings
[/Ö/g, 'Oe'],
// eslint-disable-next-line @gitlab/require-i18n-strings
[/Ü/g, 'Ue'],
// eslint-disable-next-line @gitlab/require-i18n-strings
[/Ä/g, 'Ae'],
];
/**
* Converts each non-ascii character in a string to
* it's ascii equivalent (if defined).
*
* e.g. "Dĭd söméònê äšk fœŕ Ůnĭċődę?" => "Did someone aesk foer Unicode?"
*
* @param {String} string
* @returns {String}
*/
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export const convertUnicodeToAscii = (string) => {
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let convertedString = string;
unicodeConversion.forEach(([regex, replacer]) => {
convertedString = convertedString.replace(regex, replacer);
});
return convertedString;
};
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/**
* Splits camelCase or PascalCase words
* e.g. HelloWorld => Hello World
*
* @param {*} string
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*/
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export const splitCamelCase = (string) =>
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string
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.replace(/([A-Z]+)([A-Z][a-z])/g, ' $1 $2')
.replace(/([a-z\d])([A-Z])/g, '$1 $2')
.trim();
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/**
* Intelligently truncates an item's namespace by doing two things:
* 1. Only include group names in path by removing the item name
* 2. Only include the first and last group names in the path
* when the namespace includes more than 2 groups
*
* @param {String} string A string namespace,
* i.e. "My Group / My Subgroup / My Project"
*/
export const truncateNamespace = (string = '') => {
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if (string === null || !isString(string)) {
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return '';
}
const namespaceArray = string.split(' / ');
if (namespaceArray.length === 1) {
return string;
}
namespaceArray.splice(-1, 1);
let namespace = namespaceArray.join(' / ');
if (namespaceArray.length > 2) {
namespace = `${namespaceArray[0]} / ... / ${namespaceArray.pop()}`;
}
return namespace;
};
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/**
* Tests that the input is a String and has at least
* one non-whitespace character
* @param {String} obj The object to test
* @returns {Boolean}
*/
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export const hasContent = (obj) => isString(obj) && obj.trim() !== '';
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/**
* A utility function that validates if a
* string is valid SHA1 hash format.
*
* @param {String} hash to validate
*
* @return {Boolean} true if valid
*/
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export const isValidSha1Hash = (str) => {
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return /^[0-9a-f]{5,40}$/.test(str);
};
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/**
* Adds a final newline to the content if it doesn't already exist
*
* @param {*} content Content
* @param {*} endOfLine Type of newline: CRLF='\r\n', LF='\n', CR='\r'
*/
export function insertFinalNewline(content, endOfLine = '\n') {
return content.slice(-endOfLine.length) !== endOfLine ? `${content}${endOfLine}` : content;
}
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export const markdownConfig = {
// allowedTags from GitLab's inline HTML guidelines
// https://docs.gitlab.com/ee/user/markdown.html#inline-html
ALLOWED_TAGS: [
'a',
'abbr',
'b',
'blockquote',
'br',
'code',
'dd',
'del',
'div',
'dl',
'dt',
'em',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'hr',
'i',
'img',
'ins',
'kbd',
'li',
'ol',
'p',
'pre',
'q',
'rp',
'rt',
'ruby',
's',
'samp',
'span',
'strike',
'strong',
'sub',
'summary',
'sup',
'table',
'tbody',
'td',
'tfoot',
'th',
'thead',
'tr',
'tt',
'ul',
'var',
],
ALLOWED_ATTR: ['class', 'style', 'href', 'src'],
ALLOW_DATA_ATTR: false,
};
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/**
* Escapes a string into a shell string, for example
* when you want to give a user the command to checkout
* a branch.
*
* It replaces all single-quotes with an escaped "'\''"
* that is interpreted by shell as a single-quote. It also
* encapsulates the string in single-quotes.
*
* If the branch is `fix-'bug-behavior'`, that should be
* escaped to `'fix-'\''bug-behavior'\'''`.
*/
export const escapeShellString = (str) => `'${str.replace(allSingleQuotes, () => "'\\''")}'`;