added panel mgmt
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21
panel-mgmt/backend/node_modules/named-placeholders/LICENSE
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21
panel-mgmt/backend/node_modules/named-placeholders/LICENSE
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The MIT License (MIT)
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Copyright (c) 2014 Andrey Sidorov
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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29
panel-mgmt/backend/node_modules/named-placeholders/README.md
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panel-mgmt/backend/node_modules/named-placeholders/README.md
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[](https://flattr.com/submit/auto?user_id=sidorares&url=https://github.com/sidorares/named-placeholders&title=named-placeholders&language=&tags=github&category=software)
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[](https://nodei.co/npm/named-placeholders/)
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[](https://github.com/mysqljs/named-placeholders/actions/workflows/ci.yml)
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# named-placeholders
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compiles "select foo where foo.id = :bar and foo.baz < :baz" into "select foo where foo.id = ? and foo.baz < ?" + ["bar", "baz"]
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## usage
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```sh
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npm install named-placeholders
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```
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see [this mysql2 discussion](https://github.com/sidorares/node-mysql2/issues/117)
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```js
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var mysql = require('mysql');
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var toUnnamed = require('named-placeholders')();
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var q = toUnnamed('select 1+:test', { test: 123});
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mysql.createConnection().query(q[0], q[1]);
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```
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## credits
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parser is based on @mscdex code of his excellent [node-mariasql](https://github.com/mscdex/node-mariasql) library
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179
panel-mgmt/backend/node_modules/named-placeholders/index.js
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panel-mgmt/backend/node_modules/named-placeholders/index.js
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'use strict';
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// based on code from Brian White @mscdex mariasql library - https://github.com/mscdex/node-mariasql/blob/master/lib/Client.js#L272-L332
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// License: https://github.com/mscdex/node-mariasql/blob/master/LICENSE
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const RE_PARAM = /(?:\?)|(?::(\d+|(?:[a-zA-Z][a-zA-Z0-9_]*)))/g,
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DQUOTE = 34,
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SQUOTE = 39,
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BSLASH = 92;
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function parse(query) {
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let ppos = RE_PARAM.exec(query);
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let curpos = 0;
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let start = 0;
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let end;
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const parts = [];
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let inQuote = false;
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let escape = false;
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let qchr;
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const tokens = [];
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let qcnt = 0;
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let lastTokenEndPos = 0;
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let i;
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if (ppos) {
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do {
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for (i=curpos,end=ppos.index; i<end; ++i) {
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let chr = query.charCodeAt(i);
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if (chr === BSLASH)
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escape = !escape;
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else {
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if (escape) {
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escape = false;
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continue;
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}
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if (inQuote && chr === qchr) {
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if (query.charCodeAt(i + 1) === qchr) {
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// quote escaped via "" or ''
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++i;
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continue;
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}
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inQuote = false;
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} else if (chr === DQUOTE || chr === SQUOTE) {
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inQuote = true;
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qchr = chr;
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}
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}
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}
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if (!inQuote) {
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parts.push(query.substring(start, end));
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tokens.push(ppos[0].length === 1 ? qcnt++ : ppos[1]);
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start = end + ppos[0].length;
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lastTokenEndPos = start;
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}
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curpos = end + ppos[0].length;
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} while (ppos = RE_PARAM.exec(query));
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if (tokens.length) {
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if (curpos < query.length) {
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parts.push(query.substring(lastTokenEndPos));
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}
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return [parts, tokens];
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}
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}
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return [query];
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};
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function createCompiler(config) {
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if (!config)
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config = {};
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if (!config.placeholder) {
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config.placeholder = '?';
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}
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let ncache = 100;
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let cache;
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if (typeof config.cache === 'number') {
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ncache = config.cache;
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}
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if (typeof config.cache === 'object') {
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cache = config.cache;
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}
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if (config.cache !== false && !cache) {
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cache = new (require('lru-cache'))({ max: ncache });
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}
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function toArrayParams(tree, params) {
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const arr = [];
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if (tree.length == 1) {
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return [tree[0], []];
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}
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if (typeof params == 'undefined')
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throw new Error('Named query contains placeholders, but parameters object is undefined');
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const tokens = tree[1];
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for (let i=0; i < tokens.length; ++i) {
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arr.push(params[tokens[i]]);
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}
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return [tree[0], arr];
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}
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function noTailingSemicolon(s) {
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if (s.slice(-1) == ':') {
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return s.slice(0, -1);
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}
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return s;
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}
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function join(tree) {
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if (tree.length == 1) {
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return tree;
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}
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let unnamed = noTailingSemicolon(tree[0][0]);
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for (let i=1; i < tree[0].length; ++i) {
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if (tree[0][i-1].slice(-1) == ':') {
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unnamed += config.placeholder;
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}
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unnamed += config.placeholder;
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unnamed += noTailingSemicolon(tree[0][i]);
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}
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const last = tree[0][tree[0].length -1];
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if (tree[0].length == tree[1].length) {
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if (last.slice(-1) == ':') {
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unnamed += config.placeholder;
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}
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unnamed += config.placeholder;
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}
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return [unnamed, tree[1]];
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}
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function compile(query, paramsObj) {
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let tree;
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if (cache && (tree = cache.get(query))) {
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return toArrayParams(tree, paramsObj)
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}
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tree = join(parse(query));
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if(cache) {
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cache.set(query, tree);
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}
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return toArrayParams(tree, paramsObj);
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}
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compile.parse = parse;
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return compile;
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}
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// named :one :two to postgres-style numbered $1 $2 $3
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function toNumbered(q, params) {
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const tree = parse(q);
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const paramsArr = [];
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if (tree.length == 1) {
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return [tree[0], paramsArr];
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}
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const pIndexes = {};
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let pLastIndex = 0;
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let qs = '';
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let varIndex;
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const varNames = [];
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for (let i=0; i < tree[0].length; ++i) {
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varIndex = pIndexes[tree[1][i]];
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if (!varIndex) {
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varIndex = ++pLastIndex;
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pIndexes[tree[1][i]] = varIndex;
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}
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if (tree[1][i]) {
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varNames[varIndex - 1] = tree[1][i];
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qs += tree[0][i] + '$' + varIndex;
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} else {
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qs += tree[0][i];
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}
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}
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return [qs, varNames.map(n => params[n])];
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}
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module.exports = createCompiler;
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module.exports.toNumbered = toNumbered;
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32
panel-mgmt/backend/node_modules/named-placeholders/package.json
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panel-mgmt/backend/node_modules/named-placeholders/package.json
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{
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"name": "named-placeholders",
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"version": "1.1.3",
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"description": "sql named placeholders to unnamed compiler",
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"main": "index.js",
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"scripts": {
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"test": "mocha"
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},
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"repository": {
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"type": "git",
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"url": "https://github.com/sidorares/named-placeholders"
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},
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"keywords": [
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"sql",
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"pdo",
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"named",
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"placeholders"
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],
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"engines": {
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"node": ">=12.0.0"
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},
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"author": "Andrey Sidorov <sidorares@yandex.com>",
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"files": [],
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"license": "MIT",
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"devDependencies": {
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"mocha": "^5.2.0",
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"should": "^13.2.3"
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},
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"dependencies": {
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"lru-cache": "^7.14.1"
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}
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}
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