清理存量 ASCII 框图：存储栈/分区转 SVG、CH395F 时序转 Mermaid
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""生成 docs/images/存储栈分层.svg —— GD5F2GQ5UE 存储软件栈分层图（纯标准库）。
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由 gen_arch_svg.py 复制而来（build() 与数据解耦，通用）：每层一个圆角框（标题 + 说明），
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层间单向下箭头。本图各层均为"单层单职责"，故 chips 留空（只渲染标题 + 说明行）。
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用法（仓库根目录，任意 python3）：
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python tools/arch_diagram/gen_storage_stack_svg.py
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输出：
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docs/images/存储栈分层.svg
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改分层时：编辑本文件顶部的 L_* / ROWS / TITLE / SUB / FOOT 数据后重跑。
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"""
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import html
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import os
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ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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OUT = os.path.join(ROOT, "docs", "images", "存储栈分层.svg")
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# ----------------------------- 画布与尺寸参数 -----------------------------
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W = 1000
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PAD = 26
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TITLE_FONT = 20
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SUB_FONT = 13
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BAND_TITLE_FONT = 17
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BAND_SUB_FONT = 12
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CHIP_FONT = 13
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CHIP_H = 38 # 芯片盒高
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CHIP_GAP = 10 # 芯片水平间距
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CHIP_ROW_GAP = 10 # 芯片行间距
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CHIP_PAD = 16 # 芯片内左右留白
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BAND_PAD_X = 18 # 框内左右留白
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BAND_TITLE_H = 38 # 框内标题区高
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BAND_PAD_BOTTOM = 16
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BAND_H_GAP = 26 # 同一行内并列框的间距
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BAND_V_GAP = 44 # 行间距（放箭头）
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TITLE_H = 78 # 顶部标题区高
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FONT = "Microsoft YaHei, Segoe UI, PingFang SC, sans-serif"
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# ----------------------------- 架构数据（改这里） -----------------------------
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TITLE = "STM32F4-Base 存储软件栈"
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SUB = "GD5F2GQ5UE SPI NAND Flash（256MB）· 三层软件栈（FatFs / dhara FTL / 驱动）· 上层只依赖相邻下层"
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L_APP = dict(
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title="应用程序", sub="main · freertos（CubeMX 生成 + FreeRTOS 任务）",
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color="#2563eb", bg="#eff6ff", chips=[],
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)
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L_FATFS = dict(
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title="FatFs", sub="文件系统（标准 disk_* 块设备接口）",
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color="#0d9488", bg="#f0fdfa", chips=[],
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)
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L_FTL = dict(
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title="dhara FTL", sub="地址映射 · 磨损均衡 · 坏块管理 · 垃圾回收",
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color="#16a34a", bg="#f0fdf4", chips=[],
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)
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L_DRV = dict(
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title="GD5F2GQ5UE NAND Flash 驱动", sub="硬件 SPI · 页读写 · 块擦除 · BBT · 内部 ECC 使能",
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color="#d97706", bg="#fffbeb", chips=[],
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)
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L_SPI = dict(
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title="SPI1 硬件外设",
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sub="PB3 SCK · PB4 MISO · PB5 MOSI · 42MHz · Mode 0 · MSB First · DMA2（S0-RX / S3-TX）· 小包轮询（≤32B）/ 页数据 DMA（>32B）",
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color="#e11d48", bg="#fff1f2", chips=[],
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)
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ROWS = [
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[L_APP],
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[L_FATFS],
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[L_FTL],
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[L_DRV],
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[L_SPI],
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]
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FOOT = "数据路径：应用 → FatFs → dhara FTL → gd5f2gq5ue 驱动 → SPI1 硬件外设（单向依赖）· 详见 docs/STM32F4-Base存储架构说明.md §1"
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# ----------------------------- 工具函数 -----------------------------
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def esc(s):
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return html.escape(s, quote=True)
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def text_w(s, fs):
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"""粗略估算文本像素宽：CJK/全角/圈码/箭头 ≈ 1.0em，其余 ≈ 0.58em。
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取偏大估计（宁可芯片略宽，不可文字溢出盒外）。
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"""
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w = 0.0
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for ch in s:
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w += fs * (1.0 if ord(ch) >= 0x2460 else 0.58)
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return w
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def chip_w(label):
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return text_w(label, CHIP_FONT) + 2 * CHIP_PAD
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def wrap_chips(chips, avail):
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rows, cur, cur_w = [], [], 0.0
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for c in chips:
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cw = chip_w(c)
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need = cw if not cur else cur_w + CHIP_GAP + cw
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if cur and need > avail:
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rows.append(cur)
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cur, cur_w = [c], cw
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else:
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cur.append(c)
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cur_w = need
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if cur:
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rows.append(cur)
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return rows
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# ----------------------------- 生成 -----------------------------
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def build():
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out = []
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add = out.append
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# 布局：逐行排布（行内可并列多个框，行高取该行最高框）
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placements = [] # (layer, chip_rows, x, y, w, h)
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y = TITLE_H
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for row in ROWS:
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n = len(row)
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bw = (W - 2 * PAD - BAND_H_GAP * (n - 1)) // n
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bands = []
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for i, layer in enumerate(row):
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bx = PAD + i * (bw + BAND_H_GAP)
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avail = bw - 2 * BAND_PAD_X
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rows = wrap_chips(layer["chips"], avail)
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bh = BAND_TITLE_H + len(rows) * CHIP_H + (len(rows) - 1) * CHIP_ROW_GAP + BAND_PAD_BOTTOM
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bands.append([layer, rows, bx, y, bw, bh])
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row_h = max(b[5] for b in bands)
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for b in bands:
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b[5] = row_h # 同行等高（视觉"同级"）
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placements.extend(bands)
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y += row_h + BAND_V_GAP
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total_h = y - BAND_V_GAP + 54
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add('<rect x="0" y="0" width="%d" height="%d" fill="#ffffff"/>' % (W, total_h))
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add('<text x="%d" y="%d" font-size="%d" font-weight="700" fill="#0f172a">%s</text>'
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% (PAD, 40, TITLE_FONT, esc(TITLE)))
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add('<text x="%d" y="%d" font-size="%d" fill="#64748b">%s</text>'
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% (PAD, 62, SUB_FONT, esc(SUB)))
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for (layer, rows, bx, by, bw, bh) in placements:
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# 框背景 + 边框
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add('<rect x="%d" y="%d" width="%d" height="%d" rx="12" fill="%s" stroke="%s" '
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'stroke-opacity="0.45"/>' % (bx, by, bw, bh, layer["bg"], layer["color"]))
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# 标题（层名 + 职责说明）
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add('<text x="%d" y="%d" font-size="%d" font-weight="700" fill="%s">%s</text>'
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% (bx + BAND_PAD_X, by + 26, BAND_TITLE_FONT, layer["color"], esc(layer["title"])))
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tw = text_w(layer["title"], BAND_TITLE_FONT)
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add('<text x="%.0f" y="%d" font-size="%s" fill="#64748b">%s</text>'
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% (bx + BAND_PAD_X + tw + 12, by + 26, BAND_SUB_FONT, esc(layer["sub"])))
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# 芯片
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cy = by + BAND_TITLE_H
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for row in rows:
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cx = bx + BAND_PAD_X
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for c in row:
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cw = chip_w(c)
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add('<rect x="%d" y="%d" width="%d" height="%d" rx="8" fill="#ffffff" '
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'stroke="%s" stroke-opacity="0.55"/>' % (cx, cy, cw, CHIP_H, layer["color"]))
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add('<text x="%d" y="%d" font-size="%d" fill="#1e293b" text-anchor="middle">%s</text>'
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% (cx + cw / 2, cy + CHIP_H / 2 + CHIP_FONT * 0.35, CHIP_FONT, esc(c)))
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cx += cw + CHIP_GAP
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cy += CHIP_H + CHIP_ROW_GAP
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# 行间箭头：每个上层框向下引一条（顶层两框 → 两条，体现"都依赖下层"）
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row_first = [] # 每行首个 placement 的下标
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idx = 0
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for row in ROWS:
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row_first.append(idx)
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idx += len(row)
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for r in range(len(ROWS) - 1):
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y0 = placements[row_first[r]][3] + placements[row_first[r]][5] + 6
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y1 = placements[row_first[r + 1]][3] - 8
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for i in range(row_first[r], row_first[r] + len(ROWS[r])):
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(_, _, bx, _, bw, _) = placements[i]
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ax = bx + bw / 2
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add('<line x1="%.1f" y1="%.1f" x2="%.1f" y2="%.1f" stroke="#94a3b8" '
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'stroke-width="2.5"/>' % (ax, y0, ax, y1 - 7))
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add('<path d="M %.1f %.1f l -6 -9 h 12 z" fill="#94a3b8"/>' % (ax, y1))
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add('<text x="%d" y="%d" font-size="12" fill="#94a3b8">%s</text>'
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% (PAD, total_h - 18, esc(FOOT)))
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svg = ('<svg xmlns="http://www.w3.org/2000/svg" width="%d" height="%d" '
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'viewBox="0 0 %d %d" font-family="%s">\n%s\n</svg>\n'
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% (W, total_h, W, total_h, FONT, "\n".join(out)))
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return svg, total_h
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def main():
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svg, h = build()
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with open(OUT, "w", encoding="utf-8", newline="\n") as f:
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f.write(svg)
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import xml.etree.ElementTree as ET
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ET.fromstring(svg)
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print("OK %d bytes, canvas %dx%d -> %s" % (len(svg.encode("utf-8")), W, h, OUT))
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if __name__ == "__main__":
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main()
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