Your IP : 216.73.216.171
import ConfigValues from './config-values';
class StringUtils {
static truncate_string(string, limit) {
if (string.length > limit) {
let stringArray = Array.from(string);
string =
stringArray
.splice(0, limit - 4)
.join('')
.trim() + ' ...';
}
return string;
}
static normalize_whitespace(string) {
// Replace whitespace characters with simple spaces
string = string.replace(/(\r\n|\n|\r|\t)/gm, ' ');
// Replace each set of multiple consecutive spaces with a single space
string = string.replace(/ +/g, ' ');
return string.trim();
}
static remove_shortcodes(string) {
string = string || '';
if (string.indexOf('[') === -1) {
return string;
}
// Modified version of regex from PHP function get_shortcode_regex()
let regex =
/\[(\[?)([a-zA-Z0-9_-]*)(?![\w-])([^\]\/]*(?:\/(?!])[^\]\/]*)*?)(?:(\/)]|](?:([^\[]*(?:\[(?!\/\2])[^\[]*)*)\[\/\2])?)(]?)/g,
self = this;
return string.replace(
regex,
function (
match,
start_bracket,
shortcode,
attributes,
match_4,
content,
end_bracket,
offset,
string
) {
if (arguments.length < 7) {
// Not the expected regex for some reason. Try returning the full match or fall back to empty string.
return match || '';
}
// Allow [[foo]] syntax for escaping a tag.
if ('[' === start_bracket && ']' === end_bracket) {
// Return the whole matched string without the surrounding square brackets that were there for escaping
return match.substring(1, match.length - 1);
}
let omitted = ConfigValues.get(
'omitted_shortcodes',
'replacement'
);
if (!!content && !omitted.includes(shortcode)) {
// Call the removal method on the content nested in the current shortcode
// This will continue recursively until we have removed all shortcodes
return self.remove_shortcodes(content.trim());
}
// Just remove the content-less, non-escaped shortcodes
return '';
}
);
}
static strip_html(html) {
html = html.toString();
html = html.replace(/(<([^>]+)>)/gi, '');
let div = document.createElement('DIV');
div.innerHTML = html;
return div.textContent || div.innerText || '';
}
static process_string(string, limit = false) {
string = StringUtils.strip_html(string);
string = StringUtils.normalize_whitespace(string);
if (limit) {
string = StringUtils.truncate_string(string, limit);
}
return string;
}
}
export default StringUtils;