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graphql-query-compress

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/* ** graphql-query-compress -- Compress a GraphQL Query String ** Copyright (c) 2017-2019 Dr. Ralf S. Engelschall <rse@engelschall.com> ** ** Permission is hereby granted, free of charge, to any person obtaining ** a copy of this software and associated documentation files (the ** "Software"), to deal in the Software without restriction, including ** without limitation the rights to use, copy, modify, merge, publish, ** distribute, sublicense, and/or sell copies of the Software, and to ** permit persons to whom the Software is furnished to do so, subject to ** the following conditions: ** ** The above copyright notice and this permission notice shall be included ** in all copies or substantial portions of the Software. ** ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE ** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.GraphQLQueryCompress = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(_dereq_,module,exports){ "use strict"; var _tokenizr = _interopRequireDefault(_dereq_("tokenizr")); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } /* ** graphql-query-compress -- Compress a GraphQL Query String ** Copyright (c) 2017-2019 Dr. Ralf S. Engelschall <rse@engelschall.com> ** ** Permission is hereby granted, free of charge, to any person obtaining ** a copy of this software and associated documentation files (the ** "Software"), to deal in the Software without restriction, including ** without limitation the rights to use, copy, modify, merge, publish, ** distribute, sublicense, and/or sell copies of the Software, and to ** permit persons to whom the Software is furnished to do so, subject to ** the following conditions: ** ** The above copyright notice and this permission notice shall be included ** in all copies or substantial portions of the Software. ** ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE ** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* external dependency */ /* the API function: compress a GraphQL query string */ function compactGraphQLQuery(query) { const lexer = new _tokenizr.default(); /* configure lexical analysis */ lexer.rule(/#[^\r\n]*(?=\r?\n)/, (ctx, match) => { ctx.accept("comment"); }); lexer.rule(/"(?:\\"|[^"])*"/, (ctx, match) => { ctx.accept("string"); }); lexer.rule(/$[a-zA-Z_][a-zA-Z0-9_]*/, (ctx, match) => { ctx.accept("var"); }); lexer.rule(/[a-zA-Z_][a-zA-Z0-9_]*/, (ctx, match) => { ctx.accept("id"); }); lexer.rule(/[+-]?[0-9]*\.?[0-9]+(?:[eE][+-]?[0-9]+)?/, (ctx, match) => { ctx.accept("number"); }); lexer.rule(/[ \t\r\n]+/, (ctx, match) => { ctx.accept("ws", " "); }); lexer.rule(/[{}]/, (ctx, match) => { ctx.accept("brace"); }); lexer.rule(/[[\]]/, (ctx, match) => { ctx.accept("bracket"); }); lexer.rule(/[()]/, (ctx, match) => { ctx.accept("parenthesis"); }); lexer.rule(/,/, (ctx, match) => { ctx.accept("comma"); }); lexer.rule(/!/, (ctx, match) => { ctx.accept("not"); }); lexer.rule(/\.\.\./, (ctx, match) => { ctx.accept("ellipsis"); }); lexer.rule(/@/, (ctx, match) => { ctx.accept("at"); }); lexer.rule(/:/, (ctx, match) => { ctx.accept("colon"); }); lexer.rule(/./, (ctx, match) => { ctx.accept("any"); }); lexer.input(query); lexer.debug(false); /* fetch all parsed tokens */ const tokens = lexer.tokens(); /* remove whitespace tokens at harmless positions */ let output = ""; const re = /^(?:brace|bracket|parenthesis|comma|colon)$/; for (let i = 0; i < tokens.length; i++) { if (tokens[i].type === "comment" || tokens[i].type === "ws" && (i < tokens.length - 1 && tokens[i + 1].type.match(re) || i > 0 && tokens[i - 1].type.match(re))) { tokens.splice(i, 1); i--; } } /* assembly and return new query string */ tokens.forEach(token => { output += token.value; }); return output; } /* export the API function */ module.exports = compactGraphQLQuery; },{"tokenizr":"tokenizr"}]},{},[1])(1) });