diff options
Diffstat (limited to 'node_modules/yaml/browser/dist/stringify')
8 files changed, 980 insertions, 0 deletions
diff --git a/node_modules/yaml/browser/dist/stringify/foldFlowLines.js b/node_modules/yaml/browser/dist/stringify/foldFlowLines.js new file mode 100644 index 0000000..01fe787 --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/foldFlowLines.js @@ -0,0 +1,135 @@ +const FOLD_FLOW = 'flow'; +const FOLD_BLOCK = 'block'; +const FOLD_QUOTED = 'quoted'; +/** + * Tries to keep input at up to `lineWidth` characters, splitting only on spaces + * not followed by newlines or spaces unless `mode` is `'quoted'`. Lines are + * terminated with `\n` and started with `indent`. + */ +function foldFlowLines(text, indent, mode = 'flow', { indentAtStart, lineWidth = 80, minContentWidth = 20, onFold, onOverflow } = {}) { + if (!lineWidth || lineWidth < 0) + return text; + const endStep = Math.max(1 + minContentWidth, 1 + lineWidth - indent.length); + if (text.length <= endStep) + return text; + const folds = []; + const escapedFolds = {}; + let end = lineWidth - indent.length; + if (typeof indentAtStart === 'number') { + if (indentAtStart > lineWidth - Math.max(2, minContentWidth)) + folds.push(0); + else + end = lineWidth - indentAtStart; + } + let split = undefined; + let prev = undefined; + let overflow = false; + let i = -1; + let escStart = -1; + let escEnd = -1; + if (mode === FOLD_BLOCK) { + i = consumeMoreIndentedLines(text, i); + if (i !== -1) + end = i + endStep; + } + for (let ch; (ch = text[(i += 1)]);) { + if (mode === FOLD_QUOTED && ch === '\\') { + escStart = i; + switch (text[i + 1]) { + case 'x': + i += 3; + break; + case 'u': + i += 5; + break; + case 'U': + i += 9; + break; + default: + i += 1; + } + escEnd = i; + } + if (ch === '\n') { + if (mode === FOLD_BLOCK) + i = consumeMoreIndentedLines(text, i); + end = i + endStep; + split = undefined; + } + else { + if (ch === ' ' && + prev && + prev !== ' ' && + prev !== '\n' && + prev !== '\t') { + // space surrounded by non-space can be replaced with newline + indent + const next = text[i + 1]; + if (next && next !== ' ' && next !== '\n' && next !== '\t') + split = i; + } + if (i >= end) { + if (split) { + folds.push(split); + end = split + endStep; + split = undefined; + } + else if (mode === FOLD_QUOTED) { + // white-space collected at end may stretch past lineWidth + while (prev === ' ' || prev === '\t') { + prev = ch; + ch = text[(i += 1)]; + overflow = true; + } + // Account for newline escape, but don't break preceding escape + const j = i > escEnd + 1 ? i - 2 : escStart - 1; + // Bail out if lineWidth & minContentWidth are shorter than an escape string + if (escapedFolds[j]) + return text; + folds.push(j); + escapedFolds[j] = true; + end = j + endStep; + split = undefined; + } + else { + overflow = true; + } + } + } + prev = ch; + } + if (overflow && onOverflow) + onOverflow(); + if (folds.length === 0) + return text; + if (onFold) + onFold(); + let res = text.slice(0, folds[0]); + for (let i = 0; i < folds.length; ++i) { + const fold = folds[i]; + const end = folds[i + 1] || text.length; + if (fold === 0) + res = `\n${indent}${text.slice(0, end)}`; + else { + if (mode === FOLD_QUOTED && escapedFolds[fold]) + res += `${text[fold]}\\`; + res += `\n${indent}${text.slice(fold + 1, end)}`; + } + } + return res; +} +/** + * Presumes `i + 1` is at the start of a line + * @returns index of last newline in more-indented block + */ +function consumeMoreIndentedLines(text, i) { + let ch = text[i + 1]; + while (ch === ' ' || ch === '\t') { + do { + ch = text[(i += 1)]; + } while (ch && ch !== '\n'); + ch = text[i + 1]; + } + return i; +} + +export { FOLD_BLOCK, FOLD_FLOW, FOLD_QUOTED, foldFlowLines }; diff --git a/node_modules/yaml/browser/dist/stringify/stringify.js b/node_modules/yaml/browser/dist/stringify/stringify.js new file mode 100644 index 0000000..45fa03d --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringify.js @@ -0,0 +1,124 @@ +import { anchorIsValid } from '../doc/anchors.js'; +import { isPair, isAlias, isNode, isScalar, isCollection } from '../nodes/Node.js'; +import { stringifyComment } from './stringifyComment.js'; +import { stringifyString } from './stringifyString.js'; + +function createStringifyContext(doc, options) { + const opt = Object.assign({ + blockQuote: true, + commentString: stringifyComment, + defaultKeyType: null, + defaultStringType: 'PLAIN', + directives: null, + doubleQuotedAsJSON: false, + doubleQuotedMinMultiLineLength: 40, + falseStr: 'false', + indentSeq: true, + lineWidth: 80, + minContentWidth: 20, + nullStr: 'null', + simpleKeys: false, + singleQuote: null, + trueStr: 'true', + verifyAliasOrder: true + }, doc.schema.toStringOptions, options); + let inFlow; + switch (opt.collectionStyle) { + case 'block': + inFlow = false; + break; + case 'flow': + inFlow = true; + break; + default: + inFlow = null; + } + return { + anchors: new Set(), + doc, + indent: '', + indentStep: typeof opt.indent === 'number' ? ' '.repeat(opt.indent) : ' ', + inFlow, + options: opt + }; +} +function getTagObject(tags, item) { + var _a, _b, _c, _d; + if (item.tag) { + const match = tags.filter(t => t.tag === item.tag); + if (match.length > 0) + return (_a = match.find(t => t.format === item.format)) !== null && _a !== void 0 ? _a : match[0]; + } + let tagObj = undefined; + let obj; + if (isScalar(item)) { + obj = item.value; + const match = tags.filter(t => { var _a; return (_a = t.identify) === null || _a === void 0 ? void 0 : _a.call(t, obj); }); + tagObj = + (_b = match.find(t => t.format === item.format)) !== null && _b !== void 0 ? _b : match.find(t => !t.format); + } + else { + obj = item; + tagObj = tags.find(t => t.nodeClass && obj instanceof t.nodeClass); + } + if (!tagObj) { + const name = (_d = (_c = obj === null || obj === void 0 ? void 0 : obj.constructor) === null || _c === void 0 ? void 0 : _c.name) !== null && _d !== void 0 ? _d : typeof obj; + throw new Error(`Tag not resolved for ${name} value`); + } + return tagObj; +} +// needs to be called before value stringifier to allow for circular anchor refs +function stringifyProps(node, tagObj, { anchors, doc }) { + if (!doc.directives) + return ''; + const props = []; + const anchor = (isScalar(node) || isCollection(node)) && node.anchor; + if (anchor && anchorIsValid(anchor)) { + anchors.add(anchor); + props.push(`&${anchor}`); + } + const tag = node.tag ? node.tag : tagObj.default ? null : tagObj.tag; + if (tag) + props.push(doc.directives.tagString(tag)); + return props.join(' '); +} +function stringify(item, ctx, onComment, onChompKeep) { + var _a, _b; + if (isPair(item)) + return item.toString(ctx, onComment, onChompKeep); + if (isAlias(item)) { + if (ctx.doc.directives) + return item.toString(ctx); + if ((_a = ctx.resolvedAliases) === null || _a === void 0 ? void 0 : _a.has(item)) { + throw new TypeError(`Cannot stringify circular structure without alias nodes`); + } + else { + if (ctx.resolvedAliases) + ctx.resolvedAliases.add(item); + else + ctx.resolvedAliases = new Set([item]); + item = item.resolve(ctx.doc); + } + } + let tagObj = undefined; + const node = isNode(item) + ? item + : ctx.doc.createNode(item, { onTagObj: o => (tagObj = o) }); + if (!tagObj) + tagObj = getTagObject(ctx.doc.schema.tags, node); + const props = stringifyProps(node, tagObj, ctx); + if (props.length > 0) + ctx.indentAtStart = ((_b = ctx.indentAtStart) !== null && _b !== void 0 ? _b : 0) + props.length + 1; + const str = typeof tagObj.stringify === 'function' + ? tagObj.stringify(node, ctx, onComment, onChompKeep) + : isScalar(node) + ? stringifyString(node, ctx, onComment, onChompKeep) + : node.toString(ctx, onComment, onChompKeep); + if (!props) + return str; + return isScalar(node) || str[0] === '{' || str[0] === '[' + ? `${props} ${str}` + : `${props}\n${ctx.indent}${str}`; +} + +export { createStringifyContext, stringify }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyCollection.js b/node_modules/yaml/browser/dist/stringify/stringifyCollection.js new file mode 100644 index 0000000..0a2f0ee --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyCollection.js @@ -0,0 +1,152 @@ +import { Collection } from '../nodes/Collection.js'; +import { isNode, isPair } from '../nodes/Node.js'; +import { stringify } from './stringify.js'; +import { lineComment, indentComment } from './stringifyComment.js'; + +function stringifyCollection(collection, ctx, options) { + var _a; + const flow = (_a = ctx.inFlow) !== null && _a !== void 0 ? _a : collection.flow; + const stringify = flow ? stringifyFlowCollection : stringifyBlockCollection; + return stringify(collection, ctx, options); +} +function stringifyBlockCollection({ comment, items }, ctx, { blockItemPrefix, flowChars, itemIndent, onChompKeep, onComment }) { + const { indent, options: { commentString } } = ctx; + const itemCtx = Object.assign({}, ctx, { indent: itemIndent, type: null }); + let chompKeep = false; // flag for the preceding node's status + const lines = []; + for (let i = 0; i < items.length; ++i) { + const item = items[i]; + let comment = null; + if (isNode(item)) { + if (!chompKeep && item.spaceBefore) + lines.push(''); + addCommentBefore(ctx, lines, item.commentBefore, chompKeep); + if (item.comment) + comment = item.comment; + } + else if (isPair(item)) { + const ik = isNode(item.key) ? item.key : null; + if (ik) { + if (!chompKeep && ik.spaceBefore) + lines.push(''); + addCommentBefore(ctx, lines, ik.commentBefore, chompKeep); + } + } + chompKeep = false; + let str = stringify(item, itemCtx, () => (comment = null), () => (chompKeep = true)); + if (comment) + str += lineComment(str, itemIndent, commentString(comment)); + if (chompKeep && comment) + chompKeep = false; + lines.push(blockItemPrefix + str); + } + let str; + if (lines.length === 0) { + str = flowChars.start + flowChars.end; + } + else { + str = lines[0]; + for (let i = 1; i < lines.length; ++i) { + const line = lines[i]; + str += line ? `\n${indent}${line}` : '\n'; + } + } + if (comment) { + str += '\n' + indentComment(commentString(comment), indent); + if (onComment) + onComment(); + } + else if (chompKeep && onChompKeep) + onChompKeep(); + return str; +} +function stringifyFlowCollection({ comment, items }, ctx, { flowChars, itemIndent, onComment }) { + const { indent, indentStep, options: { commentString } } = ctx; + itemIndent += indentStep; + const itemCtx = Object.assign({}, ctx, { + indent: itemIndent, + inFlow: true, + type: null + }); + let reqNewline = false; + let linesAtValue = 0; + const lines = []; + for (let i = 0; i < items.length; ++i) { + const item = items[i]; + let comment = null; + if (isNode(item)) { + if (item.spaceBefore) + lines.push(''); + addCommentBefore(ctx, lines, item.commentBefore, false); + if (item.comment) + comment = item.comment; + } + else if (isPair(item)) { + const ik = isNode(item.key) ? item.key : null; + if (ik) { + if (ik.spaceBefore) + lines.push(''); + addCommentBefore(ctx, lines, ik.commentBefore, false); + if (ik.comment) + reqNewline = true; + } + const iv = isNode(item.value) ? item.value : null; + if (iv) { + if (iv.comment) + comment = iv.comment; + if (iv.commentBefore) + reqNewline = true; + } + else if (item.value == null && ik && ik.comment) { + comment = ik.comment; + } + } + if (comment) + reqNewline = true; + let str = stringify(item, itemCtx, () => (comment = null)); + if (i < items.length - 1) + str += ','; + if (comment) + str += lineComment(str, itemIndent, commentString(comment)); + if (!reqNewline && (lines.length > linesAtValue || str.includes('\n'))) + reqNewline = true; + lines.push(str); + linesAtValue = lines.length; + } + let str; + const { start, end } = flowChars; + if (lines.length === 0) { + str = start + end; + } + else { + if (!reqNewline) { + const len = lines.reduce((sum, line) => sum + line.length + 2, 2); + reqNewline = len > Collection.maxFlowStringSingleLineLength; + } + if (reqNewline) { + str = start; + for (const line of lines) + str += line ? `\n${indentStep}${indent}${line}` : '\n'; + str += `\n${indent}${end}`; + } + else { + str = `${start} ${lines.join(' ')} ${end}`; + } + } + if (comment) { + str += lineComment(str, commentString(comment), indent); + if (onComment) + onComment(); + } + return str; +} +function addCommentBefore({ indent, options: { commentString } }, lines, comment, chompKeep) { + if (comment && chompKeep) + comment = comment.replace(/^\n+/, ''); + if (comment) { + const ic = indentComment(commentString(comment), indent); + lines.push(ic.trimStart()); // Avoid double indent on first line + } +} + +export { stringifyCollection }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyComment.js b/node_modules/yaml/browser/dist/stringify/stringifyComment.js new file mode 100644 index 0000000..f16fc91 --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyComment.js @@ -0,0 +1,20 @@ +/** + * Stringifies a comment. + * + * Empty comment lines are left empty, + * lines consisting of a single space are replaced by `#`, + * and all other lines are prefixed with a `#`. + */ +const stringifyComment = (str) => str.replace(/^(?!$)(?: $)?/gm, '#'); +function indentComment(comment, indent) { + if (/^\n+$/.test(comment)) + return comment.substring(1); + return indent ? comment.replace(/^(?! *$)/gm, indent) : comment; +} +const lineComment = (str, indent, comment) => str.endsWith('\n') + ? indentComment(comment, indent) + : comment.includes('\n') + ? '\n' + indentComment(comment, indent) + : (str.endsWith(' ') ? '' : ' ') + comment; + +export { indentComment, lineComment, stringifyComment }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyDocument.js b/node_modules/yaml/browser/dist/stringify/stringifyDocument.js new file mode 100644 index 0000000..bafad0b --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyDocument.js @@ -0,0 +1,86 @@ +import { isNode } from '../nodes/Node.js'; +import { createStringifyContext, stringify } from './stringify.js'; +import { indentComment, lineComment } from './stringifyComment.js'; + +function stringifyDocument(doc, options) { + var _a; + const lines = []; + let hasDirectives = options.directives === true; + if (options.directives !== false && doc.directives) { + const dir = doc.directives.toString(doc); + if (dir) { + lines.push(dir); + hasDirectives = true; + } + else if (doc.directives.docStart) + hasDirectives = true; + } + if (hasDirectives) + lines.push('---'); + const ctx = createStringifyContext(doc, options); + const { commentString } = ctx.options; + if (doc.commentBefore) { + if (lines.length !== 1) + lines.unshift(''); + const cs = commentString(doc.commentBefore); + lines.unshift(indentComment(cs, '')); + } + let chompKeep = false; + let contentComment = null; + if (doc.contents) { + if (isNode(doc.contents)) { + if (doc.contents.spaceBefore && hasDirectives) + lines.push(''); + if (doc.contents.commentBefore) { + const cs = commentString(doc.contents.commentBefore); + lines.push(indentComment(cs, '')); + } + // top-level block scalars need to be indented if followed by a comment + ctx.forceBlockIndent = !!doc.comment; + contentComment = doc.contents.comment; + } + const onChompKeep = contentComment ? undefined : () => (chompKeep = true); + let body = stringify(doc.contents, ctx, () => (contentComment = null), onChompKeep); + if (contentComment) + body += lineComment(body, '', commentString(contentComment)); + if ((body[0] === '|' || body[0] === '>') && + lines[lines.length - 1] === '---') { + // Top-level block scalars with a preceding doc marker ought to use the + // same line for their header. + lines[lines.length - 1] = `--- ${body}`; + } + else + lines.push(body); + } + else { + lines.push(stringify(doc.contents, ctx)); + } + if ((_a = doc.directives) === null || _a === void 0 ? void 0 : _a.docEnd) { + if (doc.comment) { + const cs = commentString(doc.comment); + if (cs.includes('\n')) { + lines.push('...'); + lines.push(indentComment(cs, '')); + } + else { + lines.push(`... ${cs}`); + } + } + else { + lines.push('...'); + } + } + else { + let dc = doc.comment; + if (dc && chompKeep) + dc = dc.replace(/^\n+/, ''); + if (dc) { + if ((!chompKeep || contentComment) && lines[lines.length - 1] !== '') + lines.push(''); + lines.push(indentComment(commentString(dc), '')); + } + } + return lines.join('\n') + '\n'; +} + +export { stringifyDocument }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyNumber.js b/node_modules/yaml/browser/dist/stringify/stringifyNumber.js new file mode 100644 index 0000000..3fa35f9 --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyNumber.js @@ -0,0 +1,24 @@ +function stringifyNumber({ format, minFractionDigits, tag, value }) { + if (typeof value === 'bigint') + return String(value); + const num = typeof value === 'number' ? value : Number(value); + if (!isFinite(num)) + return isNaN(num) ? '.nan' : num < 0 ? '-.inf' : '.inf'; + let n = JSON.stringify(value); + if (!format && + minFractionDigits && + (!tag || tag === 'tag:yaml.org,2002:float') && + /^\d/.test(n)) { + let i = n.indexOf('.'); + if (i < 0) { + i = n.length; + n += '.'; + } + let d = minFractionDigits - (n.length - i - 1); + while (d-- > 0) + n += '0'; + } + return n; +} + +export { stringifyNumber }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyPair.js b/node_modules/yaml/browser/dist/stringify/stringifyPair.js new file mode 100644 index 0000000..6243b0e --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyPair.js @@ -0,0 +1,125 @@ +import { isCollection, isNode, isScalar, isSeq } from '../nodes/Node.js'; +import { Scalar } from '../nodes/Scalar.js'; +import { stringify } from './stringify.js'; +import { lineComment, indentComment } from './stringifyComment.js'; + +function stringifyPair({ key, value }, ctx, onComment, onChompKeep) { + const { allNullValues, doc, indent, indentStep, options: { commentString, indentSeq, simpleKeys } } = ctx; + let keyComment = (isNode(key) && key.comment) || null; + if (simpleKeys) { + if (keyComment) { + throw new Error('With simple keys, key nodes cannot have comments'); + } + if (isCollection(key)) { + const msg = 'With simple keys, collection cannot be used as a key value'; + throw new Error(msg); + } + } + let explicitKey = !simpleKeys && + (!key || + (keyComment && value == null && !ctx.inFlow) || + isCollection(key) || + (isScalar(key) + ? key.type === Scalar.BLOCK_FOLDED || key.type === Scalar.BLOCK_LITERAL + : typeof key === 'object')); + ctx = Object.assign({}, ctx, { + allNullValues: false, + implicitKey: !explicitKey && (simpleKeys || !allNullValues), + indent: indent + indentStep + }); + let keyCommentDone = false; + let chompKeep = false; + let str = stringify(key, ctx, () => (keyCommentDone = true), () => (chompKeep = true)); + if (!explicitKey && !ctx.inFlow && str.length > 1024) { + if (simpleKeys) + throw new Error('With simple keys, single line scalar must not span more than 1024 characters'); + explicitKey = true; + } + if (ctx.inFlow) { + if (allNullValues || value == null) { + if (keyCommentDone && onComment) + onComment(); + return str === '' ? '?' : explicitKey ? `? ${str}` : str; + } + } + else if ((allNullValues && !simpleKeys) || (value == null && explicitKey)) { + str = `? ${str}`; + if (keyComment && !keyCommentDone) { + str += lineComment(str, ctx.indent, commentString(keyComment)); + } + else if (chompKeep && onChompKeep) + onChompKeep(); + return str; + } + if (keyCommentDone) + keyComment = null; + if (explicitKey) { + if (keyComment) + str += lineComment(str, ctx.indent, commentString(keyComment)); + str = `? ${str}\n${indent}:`; + } + else { + str = `${str}:`; + if (keyComment) + str += lineComment(str, ctx.indent, commentString(keyComment)); + } + let vcb = ''; + let valueComment = null; + if (isNode(value)) { + if (value.spaceBefore) + vcb = '\n'; + if (value.commentBefore) { + const cs = commentString(value.commentBefore); + vcb += `\n${indentComment(cs, ctx.indent)}`; + } + valueComment = value.comment; + } + else if (value && typeof value === 'object') { + value = doc.createNode(value); + } + ctx.implicitKey = false; + if (!explicitKey && !keyComment && isScalar(value)) + ctx.indentAtStart = str.length + 1; + chompKeep = false; + if (!indentSeq && + indentStep.length >= 2 && + !ctx.inFlow && + !explicitKey && + isSeq(value) && + !value.flow && + !value.tag && + !value.anchor) { + // If indentSeq === false, consider '- ' as part of indentation where possible + ctx.indent = ctx.indent.substr(2); + } + let valueCommentDone = false; + const valueStr = stringify(value, ctx, () => (valueCommentDone = true), () => (chompKeep = true)); + let ws = ' '; + if (vcb || keyComment) { + if (valueStr === '' && !ctx.inFlow) + ws = vcb === '\n' ? '\n\n' : vcb; + else + ws = `${vcb}\n${ctx.indent}`; + } + else if (!explicitKey && isCollection(value)) { + const flow = valueStr[0] === '[' || valueStr[0] === '{'; + if (!flow || valueStr.includes('\n')) + ws = `\n${ctx.indent}`; + } + else if (valueStr === '' || valueStr[0] === '\n') + ws = ''; + str += ws + valueStr; + if (ctx.inFlow) { + if (valueCommentDone && onComment) + onComment(); + } + else if (valueComment && !valueCommentDone) { + str += lineComment(str, ctx.indent, commentString(valueComment)); + } + else if (chompKeep && onChompKeep) { + onChompKeep(); + } + return str; +} + +export { stringifyPair }; diff --git a/node_modules/yaml/browser/dist/stringify/stringifyString.js b/node_modules/yaml/browser/dist/stringify/stringifyString.js new file mode 100644 index 0000000..090a222 --- /dev/null +++ b/node_modules/yaml/browser/dist/stringify/stringifyString.js @@ -0,0 +1,314 @@ +import { Scalar } from '../nodes/Scalar.js'; +import { foldFlowLines, FOLD_QUOTED, FOLD_FLOW, FOLD_BLOCK } from './foldFlowLines.js'; + +const getFoldOptions = (ctx) => ({ + indentAtStart: ctx.indentAtStart, + lineWidth: ctx.options.lineWidth, + minContentWidth: ctx.options.minContentWidth +}); +// Also checks for lines starting with %, as parsing the output as YAML 1.1 will +// presume that's starting a new document. +const containsDocumentMarker = (str) => /^(%|---|\.\.\.)/m.test(str); +function lineLengthOverLimit(str, lineWidth, indentLength) { + if (!lineWidth || lineWidth < 0) + return false; + const limit = lineWidth - indentLength; + const strLen = str.length; + if (strLen <= limit) + return false; + for (let i = 0, start = 0; i < strLen; ++i) { + if (str[i] === '\n') { + if (i - start > limit) + return true; + start = i + 1; + if (strLen - start <= limit) + return false; + } + } + return true; +} +function doubleQuotedString(value, ctx) { + const json = JSON.stringify(value); + if (ctx.options.doubleQuotedAsJSON) + return json; + const { implicitKey } = ctx; + const minMultiLineLength = ctx.options.doubleQuotedMinMultiLineLength; + const indent = ctx.indent || (containsDocumentMarker(value) ? ' ' : ''); + let str = ''; + let start = 0; + for (let i = 0, ch = json[i]; ch; ch = json[++i]) { + if (ch === ' ' && json[i + 1] === '\\' && json[i + 2] === 'n') { + // space before newline needs to be escaped to not be folded + str += json.slice(start, i) + '\\ '; + i += 1; + start = i; + ch = '\\'; + } + if (ch === '\\') + switch (json[i + 1]) { + case 'u': + { + str += json.slice(start, i); + const code = json.substr(i + 2, 4); + switch (code) { + case '0000': + str += '\\0'; + break; + case '0007': + str += '\\a'; + break; + case '000b': + str += '\\v'; + break; + case '001b': + str += '\\e'; + break; + case '0085': + str += '\\N'; + break; + case '00a0': + str += '\\_'; + break; + case '2028': + str += '\\L'; + break; + case '2029': + str += '\\P'; + break; + default: + if (code.substr(0, 2) === '00') + str += '\\x' + code.substr(2); + else + str += json.substr(i, 6); + } + i += 5; + start = i + 1; + } + break; + case 'n': + if (implicitKey || + json[i + 2] === '"' || + json.length < minMultiLineLength) { + i += 1; + } + else { + // folding will eat first newline + str += json.slice(start, i) + '\n\n'; + while (json[i + 2] === '\\' && + json[i + 3] === 'n' && + json[i + 4] !== '"') { + str += '\n'; + i += 2; + } + str += indent; + // space after newline needs to be escaped to not be folded + if (json[i + 2] === ' ') + str += '\\'; + i += 1; + start = i + 1; + } + break; + default: + i += 1; + } + } + str = start ? str + json.slice(start) : json; + return implicitKey + ? str + : foldFlowLines(str, indent, FOLD_QUOTED, getFoldOptions(ctx)); +} +function singleQuotedString(value, ctx) { + if (ctx.options.singleQuote === false || + (ctx.implicitKey && value.includes('\n')) || + /[ \t]\n|\n[ \t]/.test(value) // single quoted string can't have leading or trailing whitespace around newline + ) + return doubleQuotedString(value, ctx); + const indent = ctx.indent || (containsDocumentMarker(value) ? ' ' : ''); + const res = "'" + value.replace(/'/g, "''").replace(/\n+/g, `$&\n${indent}`) + "'"; + return ctx.implicitKey + ? res + : foldFlowLines(res, indent, FOLD_FLOW, getFoldOptions(ctx)); +} +function quotedString(value, ctx) { + const { singleQuote } = ctx.options; + let qs; + if (singleQuote === false) + qs = doubleQuotedString; + else { + const hasDouble = value.includes('"'); + const hasSingle = value.includes("'"); + if (hasDouble && !hasSingle) + qs = singleQuotedString; + else if (hasSingle && !hasDouble) + qs = doubleQuotedString; + else + qs = singleQuote ? singleQuotedString : doubleQuotedString; + } + return qs(value, ctx); +} +function blockString({ comment, type, value }, ctx, onComment, onChompKeep) { + const { blockQuote, commentString, lineWidth } = ctx.options; + // 1. Block can't end in whitespace unless the last line is non-empty. + // 2. Strings consisting of only whitespace are best rendered explicitly. + if (!blockQuote || /\n[\t ]+$/.test(value) || /^\s*$/.test(value)) { + return quotedString(value, ctx); + } + const indent = ctx.indent || + (ctx.forceBlockIndent || containsDocumentMarker(value) ? ' ' : ''); + const literal = blockQuote === 'literal' + ? true + : blockQuote === 'folded' || type === Scalar.BLOCK_FOLDED + ? false + : type === Scalar.BLOCK_LITERAL + ? true + : !lineLengthOverLimit(value, lineWidth, indent.length); + if (!value) + return literal ? '|\n' : '>\n'; + // determine chomping from whitespace at value end + let chomp; + let endStart; + for (endStart = value.length; endStart > 0; --endStart) { + const ch = value[endStart - 1]; + if (ch !== '\n' && ch !== '\t' && ch !== ' ') + break; + } + let end = value.substring(endStart); + const endNlPos = end.indexOf('\n'); + if (endNlPos === -1) { + chomp = '-'; // strip + } + else if (value === end || endNlPos !== end.length - 1) { + chomp = '+'; // keep + if (onChompKeep) + onChompKeep(); + } + else { + chomp = ''; // clip + } + if (end) { + value = value.slice(0, -end.length); + if (end[end.length - 1] === '\n') + end = end.slice(0, -1); + end = end.replace(/\n+(?!\n|$)/g, `$&${indent}`); + } + // determine indent indicator from whitespace at value start + let startWithSpace = false; + let startEnd; + let startNlPos = -1; + for (startEnd = 0; startEnd < value.length; ++startEnd) { + const ch = value[startEnd]; + if (ch === ' ') + startWithSpace = true; + else if (ch === '\n') + startNlPos = startEnd; + else + break; + } + let start = value.substring(0, startNlPos < startEnd ? startNlPos + 1 : startEnd); + if (start) { + value = value.substring(start.length); + start = start.replace(/\n+/g, `$&${indent}`); + } + const indentSize = indent ? '2' : '1'; // root is at -1 + let header = (literal ? '|' : '>') + (startWithSpace ? indentSize : '') + chomp; + if (comment) { + header += ' ' + commentString(comment.replace(/ ?[\r\n]+/g, ' ')); + if (onComment) + onComment(); + } + if (literal) { + value = value.replace(/\n+/g, `$&${indent}`); + return `${header}\n${indent}${start}${value}${end}`; + } + value = value + .replace(/\n+/g, '\n$&') + .replace(/(?:^|\n)([\t ].*)(?:([\n\t ]*)\n(?![\n\t ]))?/g, '$1$2') // more-indented lines aren't folded + // ^ more-ind. ^ empty ^ capture next empty lines only at end of indent + .replace(/\n+/g, `$&${indent}`); + const body = foldFlowLines(`${start}${value}${end}`, indent, FOLD_BLOCK, getFoldOptions(ctx)); + return `${header}\n${indent}${body}`; +} +function plainString(item, ctx, onComment, onChompKeep) { + const { type, value } = item; + const { actualString, implicitKey, indent, inFlow } = ctx; + if ((implicitKey && /[\n[\]{},]/.test(value)) || + (inFlow && /[[\]{},]/.test(value))) { + return quotedString(value, ctx); + } + if (!value || + /^[\n\t ,[\]{}#&*!|>'"%@`]|^[?-]$|^[?-][ \t]|[\n:][ \t]|[ \t]\n|[\n\t ]#|[\n\t :]$/.test(value)) { + // not allowed: + // - empty string, '-' or '?' + // - start with an indicator character (except [?:-]) or /[?-] / + // - '\n ', ': ' or ' \n' anywhere + // - '#' not preceded by a non-space char + // - end with ' ' or ':' + return implicitKey || inFlow || !value.includes('\n') + ? quotedString(value, ctx) + : blockString(item, ctx, onComment, onChompKeep); + } + if (!implicitKey && + !inFlow && + type !== Scalar.PLAIN && + value.includes('\n')) { + // Where allowed & type not set explicitly, prefer block style for multiline strings + return blockString(item, ctx, onComment, onChompKeep); + } + if (indent === '' && containsDocumentMarker(value)) { + ctx.forceBlockIndent = true; + return blockString(item, ctx, onComment, onChompKeep); + } + const str = value.replace(/\n+/g, `$&\n${indent}`); + // Verify that output will be parsed as a string, as e.g. plain numbers and + // booleans get parsed with those types in v1.2 (e.g. '42', 'true' & '0.9e-3'), + // and others in v1.1. + if (actualString) { + const test = (tag) => { var _a; return tag.default && tag.tag !== 'tag:yaml.org,2002:str' && ((_a = tag.test) === null || _a === void 0 ? void 0 : _a.test(str)); }; + const { compat, tags } = ctx.doc.schema; + if (tags.some(test) || (compat === null || compat === void 0 ? void 0 : compat.some(test))) + return quotedString(value, ctx); + } + return implicitKey + ? str + : foldFlowLines(str, indent, FOLD_FLOW, getFoldOptions(ctx)); +} +function stringifyString(item, ctx, onComment, onChompKeep) { + const { implicitKey, inFlow } = ctx; + const ss = typeof item.value === 'string' + ? item + : Object.assign({}, item, { value: String(item.value) }); + let { type } = item; + if (type !== Scalar.QUOTE_DOUBLE) { + // force double quotes on control characters & unpaired surrogates + if (/[\x00-\x08\x0b-\x1f\x7f-\x9f\u{D800}-\u{DFFF}]/u.test(ss.value)) + type = Scalar.QUOTE_DOUBLE; + } + const _stringify = (_type) => { + switch (_type) { + case Scalar.BLOCK_FOLDED: + case Scalar.BLOCK_LITERAL: + return implicitKey || inFlow + ? quotedString(ss.value, ctx) // blocks are not valid inside flow containers + : blockString(ss, ctx, onComment, onChompKeep); + case Scalar.QUOTE_DOUBLE: + return doubleQuotedString(ss.value, ctx); + case Scalar.QUOTE_SINGLE: + return singleQuotedString(ss.value, ctx); + case Scalar.PLAIN: + return plainString(ss, ctx, onComment, onChompKeep); + default: + return null; + } + }; + let res = _stringify(type); + if (res === null) { + const { defaultKeyType, defaultStringType } = ctx.options; + const t = (implicitKey && defaultKeyType) || defaultStringType; + res = _stringify(t); + if (res === null) + throw new Error(`Unsupported default string type ${t}`); + } + return res; +} + +export { stringifyString }; |