Serendipity
04d899ca89
为博客系统添加了多篇技术文章的封面图片，涵盖Git、Python工具、AI大模型、机器学习等主题。这些封面采用统一的SVG格式设计，包含标题、分类标签和视觉元素，用于提升博客文章的可视化展示效果。
495 lines
18 KiB
PowerShell
495 lines
18 KiB
PowerShell
# 批量为博客文章生成 SVG 封面图。
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Set-StrictMode -Version Latest
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$ErrorActionPreference = "Stop"
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$blogRoot = "d:\Code\Obsidian\博客"
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$coverDir = Join-Path $blogRoot "covers"
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New-Item -ItemType Directory -Force -Path $coverDir | Out-Null
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# 已人工调整过的样例封面，后续批量任务中不覆盖。
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$existingCoverMap = @{
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"d:\Code\Obsidian\博客\AI与大模型\深入解析 Claude Code：Vibe Coding 时代的 AI 编程利器.md" = "claude-code-vibe-coding-cover.svg"
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"d:\Code\Obsidian\博客\编程与工具\Docker部署完全指南.md" = "docker-deployment-guide-cover.svg"
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"d:\Code\Obsidian\博客\机器学习\视觉语言模型技术综述.md" = "vision-language-model-cover.svg"
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}
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function Escape-Xml {
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param([string]$Text)
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if ([string]::IsNullOrEmpty($Text)) {
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return ""
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}
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return $Text.Replace("&", "&").Replace("<", "<").Replace(">", ">").Replace('"', """)
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}
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function Get-ArticleTitle {
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param([string]$Path)
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$raw = Get-Content -LiteralPath $Path -Raw -Encoding UTF8
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if ($raw -match "(?m)^title:\s*(.+)$") {
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return $matches[1].Trim().Trim("'").Trim('"')
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}
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if ($raw -match "(?m)^#\s+(.+)$") {
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return $matches[1].Trim()
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}
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return [System.IO.Path]::GetFileNameWithoutExtension($Path)
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}
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function Get-CategoryName {
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param([string]$Path)
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return Split-Path (Split-Path $Path -Parent) -Leaf
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}
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function Get-SafeCoverName {
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param([string]$ArticlePath)
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if ($existingCoverMap.ContainsKey($ArticlePath)) {
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return $existingCoverMap[$ArticlePath]
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}
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$baseName = [System.IO.Path]::GetFileNameWithoutExtension($ArticlePath)
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$safeName = ($baseName -replace '[<>:"/\\|?*]', "-") -replace "\s+", "-"
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$safeName = $safeName.Trim("-")
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return "$safeName-cover.svg"
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}
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function Split-TextLines {
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param(
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[string]$Text,
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[int]$MaxCharsPerLine
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)
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$clean = $Text.Trim()
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if ([string]::IsNullOrWhiteSpace($clean)) {
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return @("")
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}
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$lines = New-Object System.Collections.Generic.List[string]
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$remaining = $clean
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while ($remaining.Length -gt $MaxCharsPerLine) {
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$cutIndex = $MaxCharsPerLine
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$spaceIndex = $remaining.LastIndexOf(" ", [Math]::Min($MaxCharsPerLine, $remaining.Length - 1))
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if ($spaceIndex -gt 6) {
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$cutIndex = $spaceIndex
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}
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$lines.Add($remaining.Substring(0, $cutIndex).Trim())
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$remaining = $remaining.Substring($cutIndex).Trim()
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}
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if ($remaining.Length -gt 0) {
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$lines.Add($remaining)
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}
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if ($lines.Count -gt 3) {
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$merged = @($lines[0], $lines[1], (($lines | Select-Object -Skip 2) -join " "))
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return $merged
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}
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return $lines.ToArray()
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}
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function Get-ThemeInfo {
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param(
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[string]$Category,
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[string]$Title
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)
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$theme = [ordered]@{
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Key = "default"
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Label = "博客封面"
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Subtitle = "知识沉淀 / 主题文章"
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Bg1 = "#0B1020"
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Bg2 = "#172554"
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Bg3 = "#0F766E"
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Accent1 = "#67E8F9"
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Accent2 = "#A78BFA"
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Accent3 = "#F472B6"
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Panel = "rgba(7,12,28,0.70)"
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Tags = @("博客", "封面", "文章")
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}
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switch ($Category) {
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"AI与大模型" {
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$theme.Key = "ai"
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$theme.Label = "AI 与大模型"
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$theme.Subtitle = "模型能力 / Agent / 智能协作"
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$theme.Bg1 = "#0B1020"
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$theme.Bg2 = "#1E1B4B"
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$theme.Bg3 = "#0F766E"
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$theme.Accent1 = "#67E8F9"
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$theme.Accent2 = "#A855F7"
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$theme.Accent3 = "#22D3EE"
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$theme.Tags = @("AI", "模型", "智能")
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}
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"机器学习" {
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$theme.Key = "ml"
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$theme.Label = "机器学习"
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$theme.Subtitle = "算法原理 / 神经网络 / 模型理解"
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$theme.Bg1 = "#0B1020"
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$theme.Bg2 = "#172554"
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$theme.Bg3 = "#4C1D95"
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$theme.Accent1 = "#67E8F9"
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$theme.Accent2 = "#C084FC"
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$theme.Accent3 = "#F472B6"
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$theme.Tags = @("学习", "网络", "模型")
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}
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"编程与工具" {
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$theme.Key = "tools"
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$theme.Label = "编程与工具"
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$theme.Subtitle = "工程实践 / 工具链 / 效率提升"
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$theme.Bg1 = "#071A33"
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$theme.Bg2 = "#0F3D74"
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$theme.Bg3 = "#0B7285"
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$theme.Accent1 = "#7DD3FC"
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$theme.Accent2 = "#FDBA74"
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$theme.Accent3 = "#60A5FA"
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$theme.Tags = @("工具", "工程", "实践")
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}
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"数据分析与报告" {
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$theme.Key = "report"
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$theme.Label = "数据分析与报告"
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$theme.Subtitle = "指标洞察 / 数据审查 / 结果汇总"
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$theme.Bg1 = "#111827"
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$theme.Bg2 = "#1F2937"
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$theme.Bg3 = "#0F766E"
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$theme.Accent1 = "#34D399"
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$theme.Accent2 = "#2DD4BF"
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$theme.Accent3 = "#A7F3D0"
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$theme.Tags = @("数据", "分析", "报告")
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}
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"学术与效率" {
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$theme.Key = "academic"
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$theme.Label = "学术与效率"
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$theme.Subtitle = "论文写作 / 知识表达 / 工具方法"
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$theme.Bg1 = "#1F172A"
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$theme.Bg2 = "#312E81"
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$theme.Bg3 = "#0F766E"
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$theme.Accent1 = "#C4B5FD"
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$theme.Accent2 = "#93C5FD"
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$theme.Accent3 = "#A7F3D0"
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$theme.Tags = @("学术", "写作", "效率")
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}
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"其他" {
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$theme.Key = "outline"
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$theme.Label = "内容策划"
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$theme.Subtitle = "选题梳理 / 结构设计 / 创作准备"
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$theme.Bg1 = "#0F172A"
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$theme.Bg2 = "#1E293B"
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$theme.Bg3 = "#334155"
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$theme.Accent1 = "#93C5FD"
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$theme.Accent2 = "#C4B5FD"
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$theme.Accent3 = "#F9A8D4"
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$theme.Tags = @("策划", "结构", "草稿")
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}
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}
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switch -Regex ($Title) {
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"Claude|Vibe|CLI|Agent" {
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$theme.Subtitle = "AI 编程 / Agentic CLI / 智能协作"
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$theme.Tags = @("Agent", "CLI", "AI")
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break
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}
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"DeepSeek|大模型" {
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$theme.Subtitle = "模型解析 / 趋势洞察 / 架构思考"
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$theme.Tags = @("模型", "解析", "趋势")
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break
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}
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"Docker|部署" {
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$theme.Subtitle = "容器部署 / 服务编排 / 工程实战"
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$theme.Tags = @("部署", "容器", "实战")
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break
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}
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"Git" {
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$theme.Subtitle = "版本控制 / 团队协作 / 工作流"
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$theme.Tags = @("Git", "协作", "工作流")
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break
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}
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"OpenClaw" {
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$theme.Subtitle = "AI 编程助手 / 安装配置 / 使用实践"
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$theme.Tags = @("AI 工具", "安装", "指南")
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break
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}
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"uv" {
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$theme.Subtitle = "Python 工具链 / 依赖管理 / 开发效率"
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$theme.Tags = @("Python", "uv", "效率")
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break
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}
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"SEO|爬取|摘要|标签|文章列表|技术栈" {
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$theme.Subtitle = "数据整理 / 指标审查 / 结果报告"
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$theme.Tags = @("数据", "报告", "审查")
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break
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}
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"LaTeX|论文" {
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$theme.Subtitle = "论文写作 / 排版工具 / 学术效率"
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$theme.Tags = @("论文", "LaTeX", "效率")
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break
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}
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"LinearRegression|线性回归" {
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$theme.Subtitle = "监督学习 / 回归模型 / 入门理解"
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$theme.Tags = @("回归", "基础", "算法")
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break
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}
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"卷积|全连接层" {
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$theme.Subtitle = "神经网络 / 表征学习 / 结构演进"
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$theme.Tags = @("卷积", "神经网络", "视觉")
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break
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}
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"深度学习" {
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$theme.Subtitle = "模型体系 / 核心概念 / 系统学习"
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$theme.Tags = @("深度学习", "模型", "指南")
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break
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}
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"视觉语言模型" {
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$theme.Subtitle = "多模态 AI / 视觉理解 / 语言推理"
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$theme.Tags = @("VLM", "多模态", "推理")
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break
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}
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"大纲" {
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$theme.Subtitle = "内容策划 / 结构拆解 / 写作准备"
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$theme.Tags = @("大纲", "结构", "规划")
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break
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}
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}
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return $theme
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}
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function Get-GraphicMarkup {
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param($Theme)
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switch ($Theme.Key) {
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"ai" {
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return @"
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<g transform="translate(760 112)">
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<circle cx="200" cy="182" r="168" fill="rgba(9,14,32,0.42)" stroke="rgba(255,255,255,0.16)" />
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<circle cx="200" cy="182" r="120" fill="rgba(103,232,249,0.10)" stroke="$($Theme.Accent1)" stroke-width="3" />
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<circle cx="200" cy="182" r="68" fill="rgba(168,85,247,0.18)" stroke="$($Theme.Accent2)" stroke-width="3" />
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<circle cx="200" cy="182" r="18" fill="#E9D5FF" />
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<path d="M28 124C92 148 134 166 198 182" stroke="$($Theme.Accent1)" stroke-width="7" stroke-linecap="round" />
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<path d="M6 190C82 194 132 190 198 182" stroke="$($Theme.Accent2)" stroke-width="7" stroke-linecap="round" />
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<path d="M18 260C94 232 134 214 198 182" stroke="$($Theme.Accent3)" stroke-width="7" stroke-linecap="round" />
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<circle cx="24" cy="124" r="18" fill="#E0F2FE" />
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<circle cx="10" cy="190" r="18" fill="#DDD6FE" />
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<circle cx="24" cy="260" r="18" fill="#CCFBF1" />
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<path d="M312 88L390 126L422 208L382 288L304 330" stroke="$($Theme.Accent2)" stroke-width="4" stroke-linecap="round" stroke-linejoin="round" />
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<circle cx="312" cy="88" r="14" fill="#C4B5FD" />
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<circle cx="390" cy="126" r="14" fill="#93C5FD" />
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<circle cx="422" cy="208" r="14" fill="#A7F3D0" />
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<circle cx="382" cy="288" r="14" fill="#67E8F9" />
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<circle cx="304" cy="330" r="14" fill="#F9A8D4" />
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</g>
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"@
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}
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"ml" {
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return @"
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<g transform="translate(760 112)">
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<rect x="0" y="72" width="116" height="232" rx="24" fill="rgba(103,232,249,0.14)" stroke="$($Theme.Accent1)" />
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<rect x="154" y="24" width="116" height="328" rx="24" fill="rgba(192,132,252,0.14)" stroke="$($Theme.Accent2)" />
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<rect x="308" y="96" width="116" height="184" rx="24" fill="rgba(244,114,182,0.14)" stroke="$($Theme.Accent3)" />
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<circle cx="58" cy="130" r="12" fill="#E0F2FE" />
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<circle cx="58" cy="188" r="12" fill="#BAE6FD" />
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<circle cx="58" cy="246" r="12" fill="#C4B5FD" />
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<circle cx="212" cy="116" r="12" fill="#E9D5FF" />
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<circle cx="212" cy="178" r="12" fill="#DDD6FE" />
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<circle cx="212" cy="240" r="12" fill="#F5D0FE" />
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<circle cx="212" cy="302" r="12" fill="#FBCFE8" />
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<circle cx="366" cy="146" r="12" fill="#FCE7F3" />
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<circle cx="366" cy="198" r="12" fill="#FBCFE8" />
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<circle cx="366" cy="250" r="12" fill="#F9A8D4" />
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<path d="M70 130L200 116L354 146" stroke="$($Theme.Accent1)" stroke-width="4" />
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<path d="M70 188L200 178L354 198" stroke="$($Theme.Accent2)" stroke-width="4" />
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<path d="M70 246L200 240L354 250" stroke="$($Theme.Accent3)" stroke-width="4" />
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<path d="M0 382C84 322 178 302 278 314C336 320 390 340 444 382" stroke="$($Theme.Accent1)" stroke-width="6" stroke-linecap="round" />
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</g>
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"@
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}
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"tools" {
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return @"
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<g transform="translate(760 108)">
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<path d="M148 0L296 86V258L148 344L0 258V86L148 0Z" fill="rgba(8,47,73,0.42)" stroke="rgba(255,255,255,0.16)" />
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<path d="M148 26L268 96L148 166L28 96L148 26Z" fill="$($Theme.Accent1)" />
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<path d="M28 96L148 166V300L28 230V96Z" fill="#0284C7" />
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<path d="M268 96L148 166V300L268 230V96Z" fill="#0369A1" />
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<path d="M356 112H470" stroke="$($Theme.Accent2)" stroke-width="10" stroke-linecap="round" />
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<path d="M356 176H506" stroke="$($Theme.Accent1)" stroke-width="10" stroke-linecap="round" />
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<path d="M356 240H454" stroke="$($Theme.Accent3)" stroke-width="10" stroke-linecap="round" />
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<rect x="352" y="54" width="176" height="246" rx="28" fill="rgba(15,23,42,0.34)" stroke="rgba(255,255,255,0.12)" />
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</g>
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"@
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}
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"report" {
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return @"
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<g transform="translate(760 116)">
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<rect x="0" y="24" width="430" height="300" rx="28" fill="rgba(8,47,73,0.36)" stroke="rgba(255,255,255,0.14)" />
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<path d="M54 248V136" stroke="$($Theme.Accent1)" stroke-width="28" stroke-linecap="round" />
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<path d="M134 248V92" stroke="$($Theme.Accent2)" stroke-width="28" stroke-linecap="round" />
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<path d="M214 248V164" stroke="$($Theme.Accent3)" stroke-width="28" stroke-linecap="round" />
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<path d="M294 248V68" stroke="#6EE7B7" stroke-width="28" stroke-linecap="round" />
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<path d="M374 248V118" stroke="#99F6E4" stroke-width="28" stroke-linecap="round" />
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<path d="M44 286H388" stroke="rgba(255,255,255,0.16)" stroke-width="4" />
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<circle cx="370" cy="94" r="56" fill="rgba(167,243,208,0.10)" stroke="$($Theme.Accent3)" stroke-width="4" />
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<path d="M370 94L398 66" stroke="$($Theme.Accent1)" stroke-width="8" stroke-linecap="round" />
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<path d="M370 94L370 146" stroke="$($Theme.Accent2)" stroke-width="8" stroke-linecap="round" />
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</g>
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"@
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}
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"academic" {
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return @"
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<g transform="translate(768 106)">
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<rect x="0" y="0" width="272" height="372" rx="24" fill="rgba(255,255,255,0.08)" stroke="rgba(255,255,255,0.14)" />
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<rect x="34" y="48" width="204" height="18" rx="9" fill="$($Theme.Accent1)" />
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<rect x="34" y="92" width="184" height="12" rx="6" fill="rgba(255,255,255,0.56)" />
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<rect x="34" y="122" width="208" height="12" rx="6" fill="rgba(255,255,255,0.56)" />
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<rect x="34" y="152" width="168" height="12" rx="6" fill="rgba(255,255,255,0.56)" />
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<path d="M338 84C384 30 468 32 512 88C558 146 540 236 472 280C396 330 302 302 270 236" stroke="$($Theme.Accent2)" stroke-width="8" stroke-linecap="round" />
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<text x="320" y="168" fill="#E0E7FF" font-family="Cambria Math, Times New Roman, serif" font-size="58">∫</text>
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<text x="386" y="158" fill="#DBEAFE" font-family="Cambria Math, Times New Roman, serif" font-size="42">LaTeX</text>
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<text x="352" y="228" fill="#CCFBF1" font-family="Cambria Math, Times New Roman, serif" font-size="40">Σ x² + y²</text>
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</g>
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"@
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}
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default {
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return @"
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<g transform="translate(760 116)">
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<rect x="0" y="0" width="448" height="296" rx="30" fill="rgba(15,23,42,0.34)" stroke="rgba(255,255,255,0.14)" />
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<path d="M34 250C108 164 182 124 268 122C332 120 390 140 432 178" stroke="$($Theme.Accent1)" stroke-width="8" stroke-linecap="round" />
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<path d="M34 202C108 140 194 110 286 118C350 124 404 148 442 184" stroke="$($Theme.Accent2)" stroke-width="8" stroke-linecap="round" />
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<path d="M34 154C100 116 168 96 244 96C322 96 394 118 448 160" stroke="$($Theme.Accent3)" stroke-width="8" stroke-linecap="round" />
|
||
<circle cx="110" cy="84" r="22" fill="#93C5FD" />
|
||
<circle cx="220" cy="62" r="18" fill="#C4B5FD" />
|
||
<circle cx="342" cy="72" r="16" fill="#F9A8D4" />
|
||
</g>
|
||
"@
|
||
}
|
||
}
|
||
}
|
||
|
||
function New-TitleMarkup {
|
||
param([string]$Title)
|
||
|
||
$maxChars = if ($Title.Length -gt 28) { 14 } elseif ($Title.Length -gt 20) { 16 } else { 20 }
|
||
$lines = Split-TextLines -Text $Title -MaxCharsPerLine $maxChars
|
||
$fontSize = switch ($lines.Count) {
|
||
1 { 48 }
|
||
2 { if (($lines | Measure-Object -Maximum Length).Maximum -gt 18) { 42 } else { 46 } }
|
||
default { 36 }
|
||
}
|
||
|
||
$lineHeight = if ($lines.Count -ge 3) { 48 } else { 56 }
|
||
$startY = switch ($lines.Count) {
|
||
1 { 250 }
|
||
2 { 226 }
|
||
default { 198 }
|
||
}
|
||
|
||
$markup = New-Object System.Collections.Generic.List[string]
|
||
for ($i = 0; $i -lt $lines.Count; $i++) {
|
||
$y = $startY + ($i * $lineHeight)
|
||
$markup.Add(" <text x=""112"" y=""$y"" fill=""#F8FAFC"" font-family=""Microsoft YaHei, Segoe UI, sans-serif"" font-size=""$fontSize"" font-weight=""700"">$([string](Escape-Xml $lines[$i]))</text>")
|
||
}
|
||
|
||
return ($markup -join "`n")
|
||
}
|
||
|
||
function New-TagMarkup {
|
||
param([string[]]$Tags)
|
||
|
||
$x = 112
|
||
$y = 376
|
||
$items = New-Object System.Collections.Generic.List[string]
|
||
$fills = @("rgba(103,232,249,0.12)", "rgba(168,85,247,0.12)", "rgba(244,114,182,0.12)")
|
||
$strokes = @("rgba(103,232,249,0.30)", "rgba(196,181,253,0.30)", "rgba(251,207,232,0.26)")
|
||
$texts = @("#BAE6FD", "#DDD6FE", "#FBCFE8")
|
||
|
||
for ($i = 0; $i -lt [Math]::Min(3, $Tags.Count); $i++) {
|
||
$tag = $Tags[$i]
|
||
$width = [Math]::Max(118, 54 + ($tag.Length * 22))
|
||
$items.Add(" <rect x=""$x"" y=""$y"" width=""$width"" height=""56"" rx=""28"" fill=""$($fills[$i])"" stroke=""$($strokes[$i])"" />")
|
||
$items.Add(" <text x=""$($x + 34)"" y=""$($y + 36)"" fill=""$($texts[$i])"" font-family=""Microsoft YaHei, Segoe UI, sans-serif"" font-size=""22"">$([string](Escape-Xml $tag))</text>")
|
||
$x += $width + 18
|
||
}
|
||
|
||
return ($items -join "`n")
|
||
}
|
||
|
||
function New-CoverSvg {
|
||
param(
|
||
[string]$Title,
|
||
[hashtable]$Theme
|
||
)
|
||
|
||
$label = Escape-Xml $Theme.Label
|
||
$subtitle = Escape-Xml $Theme.Subtitle
|
||
$titleMarkup = New-TitleMarkup -Title $Title
|
||
$tagMarkup = New-TagMarkup -Tags $Theme.Tags
|
||
$graphicMarkup = Get-GraphicMarkup -Theme $Theme
|
||
|
||
return @"
|
||
<svg width="1280" height="720" viewBox="0 0 1280 720" fill="none" xmlns="http://www.w3.org/2000/svg">
|
||
<defs>
|
||
<linearGradient id="bg" x1="120" y1="40" x2="1180" y2="680" gradientUnits="userSpaceOnUse">
|
||
<stop stop-color="$($Theme.Bg1)" />
|
||
<stop offset="0.5" stop-color="$($Theme.Bg2)" />
|
||
<stop offset="1" stop-color="$($Theme.Bg3)" />
|
||
</linearGradient>
|
||
</defs>
|
||
<rect width="1280" height="720" fill="url(#bg)" />
|
||
<circle cx="1090" cy="110" r="176" fill="$($Theme.Accent1)" fill-opacity="0.12" />
|
||
<circle cx="980" cy="590" r="220" fill="$($Theme.Accent2)" fill-opacity="0.14" />
|
||
<circle cx="258" cy="612" r="240" fill="$($Theme.Accent3)" fill-opacity="0.10" />
|
||
<rect x="72" y="84" width="586" height="552" rx="32" fill="$($Theme.Panel)" stroke="rgba(255,255,255,0.12)" />
|
||
<text x="112" y="176" fill="$($Theme.Accent1)" font-family="Microsoft YaHei, Segoe UI, sans-serif" font-size="24" letter-spacing="4">$label</text>
|
||
$titleMarkup
|
||
<text x="112" y="324" fill="#E2E8F0" font-family="Microsoft YaHei, Segoe UI, sans-serif" font-size="26">$subtitle</text>
|
||
$tagMarkup
|
||
<path d="M112 494H564" stroke="rgba(255,255,255,0.14)" stroke-width="2" />
|
||
<path d="M112 536H526" stroke="$($Theme.Accent1)" stroke-width="8" stroke-linecap="round" />
|
||
<path d="M112 576H458" stroke="$($Theme.Accent2)" stroke-width="8" stroke-linecap="round" />
|
||
$graphicMarkup
|
||
</svg>
|
||
"@
|
||
}
|
||
|
||
$articles = Get-ChildItem -LiteralPath $blogRoot -Recurse -File -Filter "*.md" |
|
||
Where-Object { $_.FullName -notlike "*\covers\*" } |
|
||
Sort-Object FullName
|
||
|
||
$created = New-Object System.Collections.Generic.List[string]
|
||
$skipped = New-Object System.Collections.Generic.List[string]
|
||
|
||
foreach ($article in $articles) {
|
||
$articlePath = $article.FullName
|
||
if ($existingCoverMap.ContainsKey($articlePath)) {
|
||
$skipped.Add("$articlePath => $($existingCoverMap[$articlePath])")
|
||
continue
|
||
}
|
||
|
||
$title = Get-ArticleTitle -Path $articlePath
|
||
$category = Get-CategoryName -Path $articlePath
|
||
$theme = Get-ThemeInfo -Category $category -Title $title
|
||
$coverName = Get-SafeCoverName -ArticlePath $articlePath
|
||
$coverPath = Join-Path $coverDir $coverName
|
||
|
||
if (Test-Path -LiteralPath $coverPath) {
|
||
$skipped.Add("$articlePath => $(Split-Path $coverPath -Leaf)")
|
||
continue
|
||
}
|
||
|
||
$svg = New-CoverSvg -Title $title -Theme $theme
|
||
Set-Content -LiteralPath $coverPath -Value $svg -Encoding UTF8
|
||
$created.Add($coverPath)
|
||
}
|
||
|
||
Write-Output "Created: $($created.Count)"
|
||
$created | ForEach-Object { Write-Output $_ }
|
||
Write-Output "Skipped: $($skipped.Count)"
|
||
$skipped | ForEach-Object { Write-Output $_ }
|