parser: add unary operators and modulo

This commit is contained in:
Joeri Exelmans 2025-10-21 20:49:35 +02:00
parent dfbcca5c14
commit 639a296075
2 changed files with 100 additions and 51 deletions

View file

@ -191,9 +191,10 @@ function peg$parse(input, options) {
const peg$r1 = /^[0-9]/;
const peg$r2 = /^[<>]/;
const peg$r3 = /^[+\-]/;
const peg$r4 = /^[*\/]/;
const peg$r5 = /^[^"]/;
const peg$r6 = /^[ \t\n\r]/;
const peg$r4 = /^[%*\/]/;
const peg$r5 = /^[!\-]/;
const peg$r6 = /^[^"]/;
const peg$r7 = /^[ \t\n\r]/;
const peg$e0 = peg$literalExpectation("[", false);
const peg$e1 = peg$literalExpectation("]", false);
@ -215,16 +216,17 @@ function peg$parse(input, options) {
const peg$e17 = peg$literalExpectation(">=", false);
const peg$e18 = peg$classExpectation(["<", ">"], false, false, false);
const peg$e19 = peg$classExpectation(["+", "-"], false, false, false);
const peg$e20 = peg$classExpectation(["*", "/"], false, false, false);
const peg$e21 = peg$literalExpectation("true", false);
const peg$e22 = peg$literalExpectation("false", false);
const peg$e23 = peg$literalExpectation("\"", false);
const peg$e24 = peg$classExpectation(["\""], true, false, false);
const peg$e25 = peg$literalExpectation("^", false);
const peg$e26 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false, false);
const peg$e27 = peg$literalExpectation("//", false);
const peg$e28 = peg$anyExpectation();
const peg$e29 = peg$literalExpectation("\n", false);
const peg$e20 = peg$classExpectation(["%", "*", "/"], false, false, false);
const peg$e21 = peg$classExpectation(["!", "-"], false, false, false);
const peg$e22 = peg$literalExpectation("true", false);
const peg$e23 = peg$literalExpectation("false", false);
const peg$e24 = peg$literalExpectation("\"", false);
const peg$e25 = peg$classExpectation(["\""], true, false, false);
const peg$e26 = peg$literalExpectation("^", false);
const peg$e27 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false, false);
const peg$e28 = peg$literalExpectation("//", false);
const peg$e29 = peg$anyExpectation();
const peg$e30 = peg$literalExpectation("\n", false);
function peg$f0(trigger, guard, actions) {
return {
@ -297,33 +299,43 @@ function peg$parse(input, options) {
rhs: rest[1],
};
}
function peg$f14(expr) {
function peg$f14(operator, atom) {
if (operator === null) {
return atom;
}
return {
kind: "unaryExpr",
operator,
expr: atom,
}
}
function peg$f15(expr) {
return expr;
}
function peg$f15(fn, param) {
function peg$f16(fn, param) {
return {
kind: "call",
fn,
param,
};
}
function peg$f16(value) {
function peg$f17(value) {
return {kind: "literal", value}
}
function peg$f17(variable) {
function peg$f18(variable) {
return {kind: "ref", variable}
}
function peg$f18() {
function peg$f19() {
return text() === "true";
}
function peg$f19(str) {
function peg$f20(str) {
return str.join('');
}
function peg$f20(event, param) {
function peg$f21(event, param) {
return {kind: "raise", event, param: param ? param[1] : undefined};
}
function peg$f21() { return null; }
function peg$f22(text) {
function peg$f22() { return null; }
function peg$f23(text) {
return {
kind: "comment",
text: text.join(''),
@ -1115,7 +1127,7 @@ function peg$parse(input, options) {
let s0, s1, s2, s3, s4, s5, s6;
s0 = peg$currPos;
s1 = peg$parseatom();
s1 = peg$parseunary();
if (s1 !== peg$FAILED) {
s2 = peg$currPos;
s3 = peg$currPos;
@ -1161,6 +1173,32 @@ function peg$parse(input, options) {
return s0;
}
function peg$parseunary() {
let s0, s1, s2;
s0 = peg$currPos;
s1 = input.charAt(peg$currPos);
if (peg$r5.test(s1)) {
peg$currPos++;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e21); }
}
if (s1 === peg$FAILED) {
s1 = null;
}
s2 = peg$parseatom();
if (s2 !== peg$FAILED) {
peg$savedPos = s0;
s0 = peg$f14(s1, s2);
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
return s0;
}
function peg$parseatom() {
let s0;
@ -1203,7 +1241,7 @@ function peg$parse(input, options) {
}
if (s5 !== peg$FAILED) {
peg$savedPos = s0;
s0 = peg$f14(s3);
s0 = peg$f15(s3);
} else {
peg$currPos = s0;
s0 = peg$FAILED;
@ -1229,7 +1267,7 @@ function peg$parse(input, options) {
s2 = peg$parsenested();
if (s2 !== peg$FAILED) {
peg$savedPos = s0;
s0 = peg$f15(s1, s2);
s0 = peg$f16(s1, s2);
} else {
peg$currPos = s0;
s0 = peg$FAILED;
@ -1255,7 +1293,7 @@ function peg$parse(input, options) {
}
if (s1 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$f16(s1);
s1 = peg$f17(s1);
}
s0 = s1;
@ -1269,7 +1307,7 @@ function peg$parse(input, options) {
s1 = peg$parseidentifier();
if (s1 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$f17(s1);
s1 = peg$f18(s1);
}
s0 = s1;
@ -1285,7 +1323,7 @@ function peg$parse(input, options) {
peg$currPos += 4;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e21); }
if (peg$silentFails === 0) { peg$fail(peg$e22); }
}
if (s1 === peg$FAILED) {
if (input.substr(peg$currPos, 5) === peg$c17) {
@ -1293,12 +1331,12 @@ function peg$parse(input, options) {
peg$currPos += 5;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e22); }
if (peg$silentFails === 0) { peg$fail(peg$e23); }
}
}
if (s1 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$f18();
s1 = peg$f19();
}
s0 = s1;
@ -1314,25 +1352,25 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e23); }
if (peg$silentFails === 0) { peg$fail(peg$e24); }
}
if (s1 !== peg$FAILED) {
s2 = [];
s3 = input.charAt(peg$currPos);
if (peg$r5.test(s3)) {
if (peg$r6.test(s3)) {
peg$currPos++;
} else {
s3 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e24); }
if (peg$silentFails === 0) { peg$fail(peg$e25); }
}
while (s3 !== peg$FAILED) {
s2.push(s3);
s3 = input.charAt(peg$currPos);
if (peg$r5.test(s3)) {
if (peg$r6.test(s3)) {
peg$currPos++;
} else {
s3 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e24); }
if (peg$silentFails === 0) { peg$fail(peg$e25); }
}
}
if (input.charCodeAt(peg$currPos) === 34) {
@ -1340,11 +1378,11 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s3 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e23); }
if (peg$silentFails === 0) { peg$fail(peg$e24); }
}
if (s3 !== peg$FAILED) {
peg$savedPos = s0;
s0 = peg$f19(s2);
s0 = peg$f20(s2);
} else {
peg$currPos = s0;
s0 = peg$FAILED;
@ -1366,7 +1404,7 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e25); }
if (peg$silentFails === 0) { peg$fail(peg$e26); }
}
if (s1 !== peg$FAILED) {
s2 = peg$parse_();
@ -1409,7 +1447,7 @@ function peg$parse(input, options) {
s4 = null;
}
peg$savedPos = s0;
s0 = peg$f20(s3, s4);
s0 = peg$f21(s3, s4);
} else {
peg$currPos = s0;
s0 = peg$FAILED;
@ -1431,11 +1469,11 @@ function peg$parse(input, options) {
s2 = peg$parsecomment();
if (s2 === peg$FAILED) {
s2 = input.charAt(peg$currPos);
if (peg$r6.test(s2)) {
if (peg$r7.test(s2)) {
peg$currPos++;
} else {
s2 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e26); }
if (peg$silentFails === 0) { peg$fail(peg$e27); }
}
}
while (s2 !== peg$FAILED) {
@ -1443,16 +1481,16 @@ function peg$parse(input, options) {
s2 = peg$parsecomment();
if (s2 === peg$FAILED) {
s2 = input.charAt(peg$currPos);
if (peg$r6.test(s2)) {
if (peg$r7.test(s2)) {
peg$currPos++;
} else {
s2 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e26); }
if (peg$silentFails === 0) { peg$fail(peg$e27); }
}
}
}
peg$savedPos = s0;
s1 = peg$f21();
s1 = peg$f22();
s0 = s1;
peg$silentFails--;
@ -1468,7 +1506,7 @@ function peg$parse(input, options) {
peg$currPos += 2;
} else {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e27); }
if (peg$silentFails === 0) { peg$fail(peg$e28); }
}
if (s1 !== peg$FAILED) {
s2 = peg$parse_();
@ -1478,7 +1516,7 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s4 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e28); }
if (peg$silentFails === 0) { peg$fail(peg$e29); }
}
while (s4 !== peg$FAILED) {
s3.push(s4);
@ -1487,7 +1525,7 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s4 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e28); }
if (peg$silentFails === 0) { peg$fail(peg$e29); }
}
}
s4 = peg$parse_();
@ -1496,7 +1534,7 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s5 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e29); }
if (peg$silentFails === 0) { peg$fail(peg$e30); }
}
if (s5 === peg$FAILED) {
s5 = peg$currPos;
@ -1506,7 +1544,7 @@ function peg$parse(input, options) {
peg$currPos++;
} else {
s6 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$e28); }
if (peg$silentFails === 0) { peg$fail(peg$e29); }
}
peg$silentFails--;
if (s6 === peg$FAILED) {
@ -1518,7 +1556,7 @@ function peg$parse(input, options) {
}
if (s5 !== peg$FAILED) {
peg$savedPos = s0;
s0 = peg$f22(s3);
s0 = peg$f23(s3);
} else {
peg$currPos = s0;
s0 = peg$FAILED;

View file

@ -81,7 +81,7 @@ sum = prod:product rest:((_ ("+" / "-") _) sum)? {
};
}
product = atom:atom rest:((_ ("*" / "/") _) product)? {
product = atom:unary rest:((_ ("*" / "/" / "%" ) _) product)? {
if (rest === null) {
return atom;
}
@ -93,6 +93,17 @@ product = atom:atom rest:((_ ("*" / "/") _) product)? {
};
}
unary = operator:("!" / "-")? atom:atom {
if (operator === null) {
return atom;
}
return {
kind: "unaryExpr",
operator,
expr: atom,
}
}
atom = fnCall / nested / literal / ref
nested = "(" _ expr:expr _ ")" {