/*!
* Copyright (c) Squirrel Chat et al., All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import { parseString } from './primitive.js';
import { extractValue } from './extract.js';
import { indexOfNewline, skipComment, skipVoid } from './util.js';
import { TomlError } from './error.js';
let KEY_PART_RE = /^[a-zA-Z0-9-_]+[ \t]*$/;
export function parseKey(str, ptr, end = '=') {
let dot = ptr - 1;
let parsed = [];
let endPtr = str.indexOf(end, ptr);
if (endPtr < 0) {
throw new TomlError('incomplete key-value: cannot find end of key', {
toml: str,
ptr: ptr,
});
}
do {
let c = str[(ptr = ++dot)];
// If it's whitespace, ignore
if (c !== ' ' && c !== '\t') {
// If it's a string
if (c === '"' || c === "'") {
if (c === str[ptr + 1] && c === str[ptr + 2]) {
throw new TomlError('multiline strings are not allowed in keys', {
toml: str,
ptr: ptr,
});
}
let [part, eos] = parseString(str, ptr);
dot = str.indexOf('.', eos);
let strEnd = str.slice(eos, dot < 0 || dot > endPtr ? endPtr : dot);
let newLine = indexOfNewline(strEnd);
if (newLine > -1) {
throw new TomlError('newlines are not allowed in keys', {
toml: str,
ptr: ptr + dot + newLine,
});
}
if (strEnd.trimStart()) {
throw new TomlError('found extra tokens after the string part', {
toml: str,
ptr: eos,
});
}
if (endPtr < eos) {
endPtr = str.indexOf(end, eos);
if (endPtr < 0) {
throw new TomlError('incomplete key-value: cannot find end of key', {
toml: str,
ptr: ptr,
});
}
}
parsed.push(part);
}
else {
// Normal raw key part consumption and validation
dot = str.indexOf('.', ptr);
let part = str.slice(ptr, dot < 0 || dot > endPtr ? endPtr : dot);
if (!KEY_PART_RE.test(part)) {
throw new TomlError('only letter, numbers, dashes and underscores are allowed in keys', {
toml: str,
ptr: ptr,
});
}
parsed.push(part.trimEnd());
}
}
// Until there's no more dot
} while (dot + 1 && dot < endPtr);
return [parsed, skipVoid(str, endPtr + 1, true, true)];
}
export function parseInlineTable(str, ptr, depth, integersAsBigInt) {
let res = {};
let seen = new Set();
let c;
ptr++;
while ((c = str[ptr++]) !== '}' && c) {
if (c === ',') {
throw new TomlError('expected value, found comma', {
toml: str,
ptr: ptr - 1,
});
}
else if (c === '#')
ptr = skipComment(str, ptr);
else if (c !== ' ' && c !== '\t' && c !== '\n' && c !== '\r') {
let k;
let t = res;
let hasOwn = false;
let [key, keyEndPtr] = parseKey(str, ptr - 1);
for (let i = 0; i < key.length; i++) {
if (i)
t = hasOwn ? t[k] : (t[k] = {});
k = key[i];
if ((hasOwn = Object.hasOwn(t, k)) && (typeof t[k] !== 'object' || seen.has(t[k]))) {
throw new TomlError('trying to redefine an already defined value', {
toml: str,
ptr: ptr,
});
}
if (!hasOwn && k === '__proto__') {
Object.defineProperty(t, k, { enumerable: true, configurable: true, writable: true });
}
}
if (hasOwn) {
throw new TomlError('trying to redefine an already defined value', {
toml: str,
ptr: ptr,
});
}
let [value, valueEndPtr] = extractValue(str, keyEndPtr, '}', depth - 1, integersAsBigInt);
seen.add(value);
t[k] = value;
ptr = valueEndPtr;
}
}
if (!c) {
throw new TomlError('unfinished table encountered', {
toml: str,
ptr: ptr,
});
}
return [res, ptr];
}
export function parseArray(str, ptr, depth, integersAsBigInt) {
let res = [];
let c;
ptr++;
while ((c = str[ptr++]) !== ']' && c) {
if (c === ',') {
throw new TomlError('expected value, found comma', {
toml: str,
ptr: ptr - 1,
});
}
else if (c === '#')
ptr = skipComment(str, ptr);
else if (c !== ' ' && c !== '\t' && c !== '\n' && c !== '\r') {
let e = extractValue(str, ptr - 1, ']', depth - 1, integersAsBigInt);
res.push(e[0]);
ptr = e[1];
}
}
if (!c) {
throw new TomlError('unfinished array encountered', {
toml: str,
ptr: ptr,
});
}
return [res, ptr];
}
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