mirror of
https://github.com/swc-project/swc.git
synced 2024-12-28 08:04:43 +03:00
194 lines
4.4 KiB
TypeScript
194 lines
4.4 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/denjucks/dex/master/lib/query/string.js
|
|
|
|
|
|
/*eslint max-len: 0, no-var:0 */
|
|
|
|
export const charsRegex = /[\0\b\t\n\r\x1a"'\\]/g; // eslint-disable-line no-control-regex
|
|
export const charsMap = {
|
|
'\0': '\\0',
|
|
'\b': '\\b',
|
|
'\t': '\\t',
|
|
'\n': '\\n',
|
|
'\r': '\\r',
|
|
'\x1a': '\\Z',
|
|
'"': '\\"',
|
|
"'": "\\'",
|
|
'\\': '\\\\',
|
|
};
|
|
|
|
function wrapEscape(escapeFn) {
|
|
return function finalEscape(val, ctx = {}) {
|
|
return escapeFn(val, finalEscape, ctx);
|
|
};
|
|
}
|
|
|
|
export function makeEscape(config = {}) {
|
|
const finalEscapeDate = config.escapeDate || dateToString;
|
|
const finalEscapeArray = config.escapeArray || arrayToList;
|
|
const finalEscapeBuffer = config.escapeBuffer || bufferToString;
|
|
const finalEscapeString = config.escapeString || escapeString;
|
|
const finalEscapeObject = config.escapeObject || escapeObject;
|
|
const finalWrap = config.wrap || wrapEscape;
|
|
|
|
function escapeFn(val, finalEscape, ctx) {
|
|
if (val === undefined || val === null) {
|
|
return 'NULL';
|
|
}
|
|
switch (typeof val) {
|
|
case 'boolean':
|
|
return val ? 'true' : 'false';
|
|
case 'number':
|
|
return val + '';
|
|
case 'object':
|
|
if (val instanceof Date) {
|
|
val = finalEscapeDate(val, finalEscape, ctx);
|
|
} else if (Array.isArray(val)) {
|
|
return finalEscapeArray(val, finalEscape, ctx);
|
|
} else if (Buffer.isBuffer(val)) {
|
|
return finalEscapeBuffer(val, finalEscape, ctx);
|
|
} else {
|
|
return finalEscapeObject(val, finalEscape, ctx);
|
|
}
|
|
}
|
|
return finalEscapeString(val, finalEscape, ctx);
|
|
}
|
|
|
|
return finalWrap ? finalWrap(escapeFn) : escapeFn;
|
|
}
|
|
|
|
export function escapeObject(val, finalEscape, ctx) {
|
|
if (val && typeof val.toSQL === 'function') {
|
|
return val.toSQL(ctx);
|
|
} else {
|
|
return JSON.stringify(val);
|
|
}
|
|
}
|
|
|
|
export function arrayToList(array, finalEscape, ctx) {
|
|
let sql = '';
|
|
for (let i = 0; i < array.length; i++) {
|
|
const val = array[i];
|
|
if (Array.isArray(val)) {
|
|
sql +=
|
|
(i === 0 ? '' : ', ') + '(' + arrayToList(val, finalEscape, ctx) + ')';
|
|
} else {
|
|
sql += (i === 0 ? '' : ', ') + finalEscape(val, ctx);
|
|
}
|
|
}
|
|
return sql;
|
|
}
|
|
|
|
export function bufferToString(buffer) {
|
|
return 'X' + escapeString(buffer.toString('hex'));
|
|
}
|
|
|
|
export function escapeString(val, finalEscape, ctx) {
|
|
let chunkIndex = (charsRegex.lastIndex = 0);
|
|
let escapedVal = '';
|
|
let match;
|
|
|
|
while ((match = charsRegex.exec(val))) {
|
|
escapedVal += val.slice(chunkIndex, match.index) + charsMap[match[0]];
|
|
chunkIndex = charsRegex.lastIndex;
|
|
}
|
|
|
|
if (chunkIndex === 0) {
|
|
// Nothing was escaped
|
|
return "'" + val + "'";
|
|
}
|
|
|
|
if (chunkIndex < val.length) {
|
|
return "'" + escapedVal + val.slice(chunkIndex) + "'";
|
|
}
|
|
|
|
return "'" + escapedVal + "'";
|
|
}
|
|
|
|
export function dateToString(date, finalEscape, ctx = {}) {
|
|
const timeZone = ctx.timeZone || 'local';
|
|
|
|
const dt = new Date(date);
|
|
let year;
|
|
let month;
|
|
let day;
|
|
let hour;
|
|
let minute;
|
|
let second;
|
|
let millisecond;
|
|
|
|
if (timeZone === 'local') {
|
|
year = dt.getFullYear();
|
|
month = dt.getMonth() + 1;
|
|
day = dt.getDate();
|
|
hour = dt.getHours();
|
|
minute = dt.getMinutes();
|
|
second = dt.getSeconds();
|
|
millisecond = dt.getMilliseconds();
|
|
} else {
|
|
const tz = convertTimezone(timeZone);
|
|
|
|
if (tz !== false && tz !== 0) {
|
|
dt.setTime(dt.getTime() + tz * 60000);
|
|
}
|
|
|
|
year = dt.getUTCFullYear();
|
|
month = dt.getUTCMonth() + 1;
|
|
day = dt.getUTCDate();
|
|
hour = dt.getUTCHours();
|
|
minute = dt.getUTCMinutes();
|
|
second = dt.getUTCSeconds();
|
|
millisecond = dt.getUTCMilliseconds();
|
|
}
|
|
|
|
// YYYY-MM-DD HH:mm:ss.mmm
|
|
return (
|
|
zeroPad(year, 4) +
|
|
'-' +
|
|
zeroPad(month, 2) +
|
|
'-' +
|
|
zeroPad(day, 2) +
|
|
' ' +
|
|
zeroPad(hour, 2) +
|
|
':' +
|
|
zeroPad(minute, 2) +
|
|
':' +
|
|
zeroPad(second, 2) +
|
|
'.' +
|
|
zeroPad(millisecond, 3)
|
|
);
|
|
}
|
|
|
|
function zeroPad(number, length) {
|
|
number = number.toString();
|
|
while (number.length < length) {
|
|
number = '0' + number;
|
|
}
|
|
return number;
|
|
}
|
|
|
|
function convertTimezone(tz) {
|
|
if (tz === 'Z') {
|
|
return 0;
|
|
}
|
|
const m = tz.match(/([+\-\s])(\d\d):?(\d\d)?/);
|
|
if (m) {
|
|
return (
|
|
(m[1] == '-' ? -1 : 1) *
|
|
(parseInt(m[2], 10) + (m[3] ? parseInt(m[3], 10) : 0) / 60) *
|
|
60
|
|
);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
export default {
|
|
arrayToList,
|
|
bufferToString,
|
|
dateToString,
|
|
escapeString,
|
|
charsRegex,
|
|
charsMap,
|
|
escapeObject,
|
|
makeEscape,
|
|
};
|