110 lines
4.6 KiB
JavaScript
110 lines
4.6 KiB
JavaScript
/*!
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* Copyright (c) Squirrel Chat et al., All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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import { parseString, parseValue } from './primitive.js';
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import { parseArray, parseInlineTable } from './struct.js';
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import { indexOfNewline, skipVoid, skipUntil, skipComment, getStringEnd } from './util.js';
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import { TomlError } from './error.js';
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function sliceAndTrimEndOf(str, startPtr, endPtr, allowNewLines) {
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let value = str.slice(startPtr, endPtr);
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let commentIdx = value.indexOf('#');
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if (commentIdx > -1) {
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// The call to skipComment allows to "validate" the comment
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// (absence of control characters)
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skipComment(str, commentIdx);
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value = value.slice(0, commentIdx);
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}
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let trimmed = value.trimEnd();
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if (!allowNewLines) {
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let newlineIdx = value.indexOf('\n', trimmed.length);
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if (newlineIdx > -1) {
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throw new TomlError('newlines are not allowed in inline tables', {
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toml: str,
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ptr: startPtr + newlineIdx
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});
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}
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}
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return [trimmed, commentIdx];
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}
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export function extractValue(str, ptr, end, depth, integersAsBigInt) {
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if (depth === 0) {
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throw new TomlError('document contains excessively nested structures. aborting.', {
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toml: str,
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ptr: ptr
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});
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}
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let c = str[ptr];
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if (c === '[' || c === '{') {
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let [value, endPtr] = c === '['
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? parseArray(str, ptr, depth, integersAsBigInt)
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: parseInlineTable(str, ptr, depth, integersAsBigInt);
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let newPtr = end ? skipUntil(str, endPtr, ',', end) : endPtr;
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if (endPtr - newPtr && end === '}') {
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let nextNewLine = indexOfNewline(str, endPtr, newPtr);
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if (nextNewLine > -1) {
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throw new TomlError('newlines are not allowed in inline tables', {
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toml: str,
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ptr: nextNewLine
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});
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}
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}
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return [value, newPtr];
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}
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let endPtr;
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if (c === '"' || c === "'") {
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endPtr = getStringEnd(str, ptr);
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let parsed = parseString(str, ptr, endPtr);
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if (end) {
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endPtr = skipVoid(str, endPtr, end !== ']');
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if (str[endPtr] && str[endPtr] !== ',' && str[endPtr] !== end && str[endPtr] !== '\n' && str[endPtr] !== '\r') {
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throw new TomlError('unexpected character encountered', {
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toml: str,
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ptr: endPtr,
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});
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}
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endPtr += (+(str[endPtr] === ','));
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}
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return [parsed, endPtr];
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}
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endPtr = skipUntil(str, ptr, ',', end);
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let slice = sliceAndTrimEndOf(str, ptr, endPtr - (+(str[endPtr - 1] === ',')), end === ']');
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if (!slice[0]) {
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throw new TomlError('incomplete key-value declaration: no value specified', {
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toml: str,
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ptr: ptr
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});
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}
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if (end && slice[1] > -1) {
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endPtr = skipVoid(str, ptr + slice[1]);
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endPtr += +(str[endPtr] === ',');
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}
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return [
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parseValue(slice[0], str, ptr, integersAsBigInt),
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endPtr,
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];
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}
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