czy-avue-form-design
Version:
Vue3.0版本，因Avue还存在一些bug，请慎重使用。
297 lines (238 loc) • 8.72 kB
JavaScript
/* eslint-disable no-misleading-character-class */
let
escapable = /[\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
keyable = /^[a-zA-Z_$][0-9a-zA-Z_$]*$/,
gap,
indent,
meta = { // table of character substitutions
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"': '\\"',
"'": "\\'",
'\\': '\\\\'
},
rep;
export default function convert(object, options = {}) {
var space = options.space || 2,
dropQuotesOnKeys = options.dropQuotesOnKeys == false ? false: true,
dropQuotesOnNumbers = options.dropQuotesOnNumbers || false,
inlineShortArrays = options.inlineShortArrays || false,
inlineShortArraysDepth = options.inlineShortArraysDepth || 1,
quoteType = options.quoteType || 'single',
minify = options.minify || false;
if (dropQuotesOnNumbers) walkObjectAndDropQuotesOnNumbers(object);
var result = stringify(object, null, minify ? undefined : space, dropQuotesOnKeys, quoteType);
if (inlineShortArrays && !minify) {
var newResult = inlineShortArraysInResult(result);
if (inlineShortArraysDepth > 1) {
for (var i = 1; i < inlineShortArraysDepth; i++) {
result = newResult;
newResult = inlineShortArraysInResult(result);
if (newResult == result) break;
}
}
result = newResult;
}
return result;
}
function walkObjectAndDropQuotesOnNumbers(object) {
if (!isObject(object)) return;
var keys = Object.keys(object);
if (!keys) return;
keys.forEach(function (key) {
var value = object[key];
if (typeof value == 'string') {
var number = value - 0;
object[key] = isNaN(number) ? value : number;
} else if (isObject(value) || Array.isArray(value)) {
walkObjectAndDropQuotesOnNumbers(value);
}
});
}
function isObject(o) {
return o && typeof o == 'object';
}
// Collapses arrays inline when they fit inside the specified width
// in characters (including indentation).
function inlineShortArraysInResult(result, width) {
width || (width = 80);
if (typeof width != 'number' || width < 20) {
throw "Invalid width '" + width + "'. Expecting number equal or larger than 20."
}
var list = result.split('\n'),
i = 0,
start = null,
content = [];
while (i < list.length) {
var startMatch = !!list[i].match(/\[/),
endMatch = !!list[i].match(/\],?/);
if (startMatch && !endMatch) {
content = [list[i]];
start = i;
} else if (endMatch && !startMatch && start) {
content.push((list[i] || '').trim());
var inline = content.join(' ');
if (inline.length < width) {
list.splice(start, i - start + 1, inline);
i = start;
}
start = null;
content = [];
} else {
if (start) content.push((list[i] || '').trim());
}
i += 1;
}
return list.join('\n');
}
function stringify(value, replacer, space, dropQuotesOnKeys, quoteType) {
// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.
var i;
gap = '';
indent = '';
// If the space parameter is a number, make an indent string containing that
// many spaces.
if (typeof space === 'number') {
for (i = 0; i < space; i += 1) {
indent += ' ';
}
// If the space parameter is a string, it will be used as the indent string.
} else if (typeof space === 'string') {
indent = space;
}
// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.
rep = replacer;
if (replacer && typeof replacer !== 'function' &&
(typeof replacer !== 'object' ||
typeof replacer.length !== 'number')) {
throw new Error('JSON.stringify');
}
// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.
return str('', { '': value }, dropQuotesOnKeys, quoteType);
}
function str(key, holder, dropQuotesOnKeys, quoteType) {
// Produce a string from holder[key].
var i, // The loop counter.
k, // The member key.
v, // The member value.
length,
mind = gap,
partial,
value = holder[key];
// If the value has a toJSON method, call it to obtain a replacement value.
if (value && typeof value === 'object' &&
typeof value.toJSON === 'function') {
value = value.toJSON(key);
}
// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.
if (typeof rep === 'function') {
value = rep.call(holder, key, value);
}
// What happens next depends on the value's type.
switch (typeof value) {
case 'function':
return value;
case 'string':
return quote(value, quoteType);
case 'number':
// JSON numbers must be finite. Encode non-finite numbers as null.
return isFinite(value) ? String(value) : 'null';
case 'boolean':
case 'null':
// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.
return String(value);
// If the type is 'object', we might be dealing with an object or an array or
// null.
case 'object':
// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.
if (!value) {
return 'null';
}
// Make an array to hold the partial results of stringifying this object value.
gap += indent;
partial = [];
// Is the value an array?
if (Object.prototype.toString.apply(value) === '[object Array]') {
// The value is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.
length = value.length;
for (i = 0; i < length; i += 1) {
partial[i] = str(i, value, dropQuotesOnKeys, quoteType) || 'null';
}
// Join all of the elements together, separated with commas, and wrap them in
// brackets.
v = partial.length === 0
? '[]'
: gap
? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']'
: '[' + partial.join(',') + ']';
gap = mind;
return v;
}
// If the replacer is an array, use it to select the members to be stringified.
if (rep && typeof rep === 'object') {
length = rep.length;
for (i = 0; i < length; i += 1) {
if (typeof rep[i] === 'string') {
k = rep[i];
v = str(k, value, dropQuotesOnKeys, quoteType);
if (v) {
partial.push((dropQuotesOnKeys ? condQuoteKey(k, quoteType) : quote(k, quoteType)) + (gap ? ': ' : ':') + v);
}
}
}
} else {
// Otherwise, iterate through all of the keys in the object.
for (k in value) {
if (Object.prototype.hasOwnProperty.call(value, k)) {
v = str(k, value, dropQuotesOnKeys, quoteType);
if (v) {
partial.push((dropQuotesOnKeys ? condQuoteKey(k, quoteType) : quote(k, quoteType)) + (gap ? ': ' : ':') + v);
}
}
}
}
// Join all of the member texts together, separated with commas,
// and wrap them in braces.
v = partial.length === 0
? '{}'
: gap
? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}'
: '{' + partial.join(',') + '}';
gap = mind;
return v;
}
}
function quote(string, quoteType) {
// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we must also replace the offending characters with safe escape
// sequences.
escapable.lastIndex = 0;
var surroundingQuote = '"';
if (quoteType === 'single') {
surroundingQuote = "'";
}
return escapable.test(string) ? surroundingQuote + string.replace(escapable, function (a) {
var c = meta[a];
return typeof c === 'string'
? c
: '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
}) + surroundingQuote : surroundingQuote + string + surroundingQuote;
}
function condQuoteKey(string, quoteType) {
return keyable.test(string) ? string : quote(string, quoteType);
}