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| 1 | - | var parse = function (x) {
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| 1 | + | //var isVar = vars[x[i]]; |
| 2 | - | var temp = []; |
| 2 | + | //if (isVar != undefined) {
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| 3 | - | var pushUn = function (a) {
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| 3 | + | // temp.push(variable(x[i])); |
| 4 | - | temp.push(a(temp.pop())); |
| 4 | + | //} |
| 5 | - | }; |
| 5 | + | //else if (x[i] >= '0' && x[i] <= '9') {
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| 6 | - | function isNumber(n) {
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| 6 | + | // temp.push(cnst(parseInt(x.substr(i)))); |
| 7 | - | return !isNaN(parseFloat(n)) && isFinite(n); |
| 7 | + | // while (x[i] != ' ' && i != x.length) {
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| 8 | - | } |
| 8 | + | // i++; |
| 9 | - | var pushBi = function (a) {
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| 9 | + | // } |
| 10 | - | var r = temp.pop(); |
| 10 | + | //} |
| 11 | - | var l = temp.pop(); |
| 11 | + | //else if (x[i] == '*') {
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| 12 | - | temp.push(a(l, r)); |
| 12 | + | // if (i != x.length - 1 && x[i + 1] == '*') {
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| 13 | - | }; |
| 13 | + | // pushBi(power); |
| 14 | - | var tokens = x.split(' ');
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| 14 | + | // i += 1; |
| 15 | - | for (var i = 0; i < tokens.length; i++) {
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| 15 | + | // continue; |
| 16 | - | if(tokens[i] in vars){
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| 16 | + | // } |
| 17 | - | temp.push(variable(tokens[i])); |
| 17 | + | // pushBi(multiply); |
| 18 | - | } |
| 18 | + | //} |
| 19 | - | else if(tokens[i] in binOps){
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| 19 | + | //else if (x[i] == '/') {
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| 20 | - | pushBi(binOps[tokens[i]]); |
| 20 | + | // pushBi(divide); |
| 21 | - | } |
| 21 | + | //} |
| 22 | - | else if(tokens[i] in unOps){
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| 22 | + | //else if (x[i] == '+') {
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| 23 | - | pushUn(unOps[tokens[i]]); |
| 23 | + | // pushBi(add); |
| 24 | - | } |
| 24 | + | //} |
| 25 | - | else if(isNumber(tokens[i])){
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| 25 | + | //else if (x[i] == '-') {
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| 26 | - | temp.push(cnst(parseInt(tokens[i]))); |
| 26 | + | // if (i != x.length - 1 && x[i + 1] >= '0' && x[i + 1] <= '9') {
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| 27 | - | } |
| 27 | + | // temp.push(cnst(parseInt(x.substr(i)))); |
| 28 | - | } |
| 28 | + | // while (x[i] != ' ' && i != x.length) {
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| 29 | - | return temp.pop(); |
| 29 | + | // i++; |
| 30 | - | }; |
| 30 | + | // } |
| 31 | // continue; | |
| 32 | // } | |
| 33 | // pushBi(subtract); | |
| 34 | //} | |
| 35 | //else if (x[i] == 'a') {
| |
| 36 | // pushUn(abs); | |
| 37 | // i += 3; | |
| 38 | //} | |
| 39 | //else if (x[i] == 'l') {
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| 40 | // pushUn(log); | |
| 41 | // i += 3; | |
| 42 | //} | |
| 43 | //else if (x[i] == '%') {
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| 44 | // pushBi(mod); | |
| 45 | //} | |
| 46 | //else if (x[i] == 'n') {
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| 47 | // pushUn(negate); | |
| 48 | // i += 6; | |
| 49 | //} |
