kloudglue-alasql/utils/redj/redj.js

Versatile SQL database for browser or node. Handles relational data and nested JSON (noSQL). Export to and import from Excel, localStorage or IndexedDB

var fs = require('fs');

// Read file
var s = fs.readFileSync('./src/alasqlparser.jison').toString();

var ss = s.split('/lex');

// Prepare list of terminals
var aa = s.match(/return \'[A-Z_]+\'/g);
var aa = aa.map(function(a){return a.substr(8,a.length-1-8)});

// Prepare literals
//var bb = s.match(/;\s+([A-Z][A-Za-z]*\s+:)/g);
var bb = s.match(/\n[A-Z][A-Za-z]*\s+:/g);

bb.forEach(function(b){
	aa.push(b.substr(1,b.length-2).trim());
});

aa.push('Literal');
//	var d = s.match(new RegExp("\\s"+c+"\\s","g"));

//	console.log(aa.length);

var abc1 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
var abc2 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghigklmnopqrstuvwxyz0123456789';

for(var i=0;i<aa.length;i++) {
	var c1 = (i / abc2.length)|0;
	var c2 = i% abc2.length;
	var ch = abc1[c1]+abc2[c2];	
	ss[0] = ss[0].replace(new RegExp("return\\s+\\'"+aa[i]+"\\'","g"),"return '"+ch+"'");
	ss[1] = ss[1].replace(new RegExp("\\s"+aa[i]+"\\s","g"),' '+ch+' ');
	ss[1] = ss[1].replace(new RegExp("\\("+aa[i]+"\\|","g"),'('+ch+'|');
	ss[1] = ss[1].replace(new RegExp("\\|"+aa[i]+"\\|","g"),'|'+ch+'|');
	ss[1] = ss[1].replace(new RegExp("\\|"+aa[i]+"\\)","g"),'|'+ch+')');
	ss[1] = ss[1].replace(new RegExp("\\s"+aa[i]+"\\?","g"),' '+ch+'?');
}

var so = ss[0]+'/lex'+ss[1];
fs.writeFileSync('./src/alasqlparser1.jison',so);
//console.log(s);

//console.log(bb);