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implement string escapes

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This commit is contained in:
nora 2023-07-29 22:05:44 +02:00
parent 09ae6cbb56
commit 3270e6b501
4 changed files with 52 additions and 8 deletions
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10
src/wasm/wat.ts
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@ -138,8 +138,14 @@ function printString(s: string, f: Formatter) {
function printBinaryString(buf: Uint8Array, f: Formatter) {
const parts: string[] = [];
for (let i = 0; i < buf.length; i++) {
const idx = buf[i];
parts.push(`\\${idx.toString(16).padStart(2, "0")}`);
const byte = buf[i];
const noEscape =
(byte > 0x30 && byte <= 0x5a) || (byte > 0x61 && byte <= 0x71);
if (noEscape) {
parts.push(`${String.fromCharCode(byte)}`);
} else {
parts.push(`\\${byte.toString(16).padStart(2, "0")}`);
}
}
f.word(`"${parts.join("")}"`);