71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
/**
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* 申论题批复解析（与管理端 UserProgressList 约定一致）
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* review_comment 格式：【第1题】\n评语\n\n【第2题】\n评语\n\n__IMG_COUNTS__:n1,n2,...
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* review_images 为一维数组，按 __IMG_COUNTS__ 数量依次对应各题
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*/
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const IMG_COUNTS_MARKER = '__IMG_COUNTS__:'
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/**
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* 从 progress.review_comment + review_images 解析出各题评语与各题图片数量
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* @param {Object} progress - 进度对象，含 review_comment（或 review_comment）
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* @returns {{ comments: string[], imageCounts: number[] }}
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*/
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function parseEssayReview(progress) {
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var comments = []
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var imageCounts = []
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var rawComment = (progress && (progress.review_comment || progress.reviewComment)) || ''
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var text = String(rawComment).trim()
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if (!text) return { comments: comments, imageCounts: imageCounts }
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var idx = text.indexOf(IMG_COUNTS_MARKER)
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if (idx >= 0) {
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var rest = text.slice(idx + IMG_COUNTS_MARKER.length).trim()
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var parts = rest.split(',').map(function (s) { return parseInt(s, 10) })
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parts.forEach(function (n) {
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if (!Number.isNaN(n)) imageCounts.push(n)
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})
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text = text.slice(0, idx).trim()
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}
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var regex = /【第(\d+)题】\s*\n?/g
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var starts = []
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var match
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while ((match = regex.exec(text)) !== null) {
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starts.push({ num: parseInt(match[1], 10), index: match.index })
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}
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for (var i = 0; i < starts.length; i++) {
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var startIdx = starts[i].index
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var endIdx = starts[i + 1] ? starts[i + 1].index : text.length
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var block = text.slice(startIdx, endIdx).replace(/^【第\d+题】\s*\n?/, '').trim()
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comments[i] = block
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}
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return { comments: comments, imageCounts: imageCounts }
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}
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/**
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* 将一维批复图片按各题数量拆成二维数组
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* @param {string[]} flat - 一维图片 URL 数组
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* @param {number[]} counts - 各题图片数量 [n1, n2, ...]
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* @returns {string[][]}
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*/
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function splitReviewImagesByCounts(flat, counts) {
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var result = []
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var offset = 0
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for (var i = 0; i < counts.length; i++) {
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var n = counts[i]
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var chunk = (flat || []).slice(offset, offset + n).filter(function (u) {
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return u && String(u).trim() !== ''
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})
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result.push(chunk)
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offset += n
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}
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return result
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}
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module.exports = {
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IMG_COUNTS_MARKER: IMG_COUNTS_MARKER,
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parseEssayReview: parseEssayReview,
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splitReviewImagesByCounts: splitReviewImagesByCounts
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}
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