Shuery
8a0924330a
整个 TUI 的地基：位置、对齐、边框都靠它。而它算错了**不会报错** —— 表现只是菜单右边框歪一点、光标偏一列，所以每条边界都在断言里钉住。 为什么必须自己算：.Length 是 UTF-16 code unit 的个数（汉字 1 个 char、2 列）；而 $Host.UI.RawUI.LengthInBufferCells 在 PowerShell 7 上对、在 5.1 上错（实测 中文 返回 2、字体边框字符 返回 6），且不抛错 —— 这种"一边对一边错"的 API 比两边都错更危险。 表里三个边界是实测踩过的：半角片假名 U+FF61–FF9F 是 1 列（不能划进全角区）；全角拉丁 U+FF00–FF60 是 2 列；emoji 是代理对，按一个码点算。 验收：断言 8 条（含空串与控制字符）；test.ps1 9/9 全绿（5.1 与 7）。
60 lines
3.3 KiB
PowerShell
60 lines
3.3 KiB
PowerShell
$out = Join-Path $env:TEMP 'console-probe.txt'
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$lines = New-Object System.Collections.Generic.List[string]
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function L($s) { $lines.Add($s) }
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$src = @"
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using System;
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using System.Runtime.InteropServices;
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public static class K32 {
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[DllImport("kernel32.dll", SetLastError=true)] public static extern bool AllocConsole();
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[DllImport("kernel32.dll", SetLastError=true)] public static extern bool FreeConsole();
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[DllImport("kernel32.dll")] public static extern IntPtr GetStdHandle(int n);
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[DllImport("kernel32.dll", SetLastError=true)] public static extern bool GetConsoleMode(IntPtr h, out uint m);
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[DllImport("kernel32.dll", SetLastError=true)] public static extern bool SetConsoleMode(IntPtr h, uint m);
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[DllImport("kernel32.dll")] public static extern IntPtr GetConsoleWindow();
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}
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"@
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Add-Type -TypeDefinition $src -ErrorAction Stop
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$hwndBefore = [K32]::GetConsoleWindow()
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L ("PSVersion : " + $PSVersionTable.PSVersion)
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L ("CLR : " + [System.Environment]::Version)
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L ("GetConsoleWindow(before AllocConsole) : " + $hwndBefore)
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$ok = [K32]::AllocConsole()
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L ("AllocConsole() : " + $ok)
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$hOut = [K32]::GetStdHandle(-11); $hIn = [K32]::GetStdHandle(-10)
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$mOut = 0; $mIn = 0
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$okOut = [K32]::GetConsoleMode($hOut, [ref]$mOut)
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$okIn = [K32]::GetConsoleMode($hIn, [ref]$mIn)
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L ("STDOUT GetConsoleMode: " + $okOut + " mode=0x" + ('{0:X}' -f $mOut))
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L ("STDIN GetConsoleMode: " + $okIn + " mode=0x" + ('{0:X}' -f $mIn))
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L (" STDOUT ENABLE_VIRTUAL_TERMINAL_PROCESSING (0x0004) : " + (($mOut -band 4) -eq 4))
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L (" STDOUT ENABLE_PROCESSED_OUTPUT (0x0001) : " + (($mOut -band 1) -eq 1))
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L (" STDOUT ENABLE_WRAP_AT_EOL_OUTPUT (0x0002) : " + (($mOut -band 2) -eq 2))
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L (" STDIN ENABLE_VIRTUAL_TERMINAL_INPUT (0x0200) : " + (($mIn -band 0x200) -eq 0x200))
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$raw = $Host.UI.RawUI
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$vtProp = $raw | Get-Member -Name SupportsVirtualTerminal -ErrorAction SilentlyContinue
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$rawMembers = ($raw | Get-Member -MemberType Property | Select-Object -ExpandProperty Name) -join ','
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L ("RawUI property list : " + $rawMembers)
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L ("RawUI has SupportsVirtualTerminal member? " + [bool]$vtProp)
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try { L ("RawUI.SupportsVirtualTerminal value : [" + $raw.SupportsVirtualTerminal + "]") } catch { L ("RawUI.SupportsVirtualTerminal THREW: " + $_.Exception.Message) }
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try { L ("`$Host.UI.SupportsVirtualTerminal : [" + $Host.UI.SupportsVirtualTerminal + "]") } catch { L ("`$Host.UI.SupportsVirtualTerminal THREW: " + $_.Exception.Message) }
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L ("[Console]::OutputEncoding : " + [Console]::OutputEncoding.WebName)
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L ("[Console]::IsOutputRedirected : " + [Console]::IsOutputRedirected)
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L ("[Console] ReinitCheck : skipped")
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$w = $raw.WindowSize; $b = $raw.BufferSize
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L ("RawUI.WindowSize : " + $w.Width + "x" + $w.Height)
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L ("RawUI.BufferSize : " + $b.Width + "x" + $b.Height)
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# activate VT and re-read
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$okSet = [K32]::SetConsoleMode($hOut, $mOut -bor 4)
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$mOut2 = 0
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[void][K32]::GetConsoleMode($hOut, [ref]$mOut2)
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L ("SetConsoleMode(out, mode|0x4) : " + $okSet + " -> new mode=0x" + ('{0:X}' -f $mOut2))
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$tmp = join-path $env:TEMP 'vt-write-test.txt'
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$lines | Set-Content -Path $tmp -Encoding UTF8
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Write-Host ""
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Write-Host "=== PROBE OUTPUT ON ATTACHED CONSOLE ===" -ForegroundColor Cyan
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Write-Host "Try ANSI: [31mRED[0m [32mGREEN[0m"
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$lines | ForEach-Object { Write-Host $_ }
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Write-Host "=== END ===" -ForegroundColor Cyan
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Start-Sleep -Seconds 2
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[void][K32]::FreeConsole()
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