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const process = require('node:process');
const fs = require('node:fs');
const parser = require('./grammar.js').parser;
parser.yy = {
pc: 0,
step: function() { this.pc += 1; },
equ: {},
line: {},
setEqu: function(l, v) {
this.equ[l] = v;
},
setLine: function(l) {
this.line[l] = this.pc;
},
getLabel: function(l) {
if (this.equ[l] !== undefined) {
return this.equ[l];
}
return l;
},
tidyAddress: function(pc, addr) {
if (typeof(addr.value) === "string") {
addr.value = this.line[addr.value] - pc;
}
},
};
//if (process.argv[1] === 'parser.js' && process.argv.length >= 3) {
fs.readFile(process.argv[2], 'utf8', (err, data) => {
if (err) throw err;
let result = parser.parse(data.toUpperCase());
if (typeof(result.start) === "string") {
result.start = parser.yy.line[result.start];
}
for (let pc=0; pc<result.program.length; pc += 1) {
parser.yy.tidyAddress(pc, result.program[pc].a);
parser.yy.tidyAddress(pc, result.program[pc].b);
}
console.log(result.start);
console.log(result.program);
console.log(parser.yy);
});
//}
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