写第一版 EPRO2 → .kicad_sch 转换:把 SCH_PAGE Document 的 wires +
COMPONENT placements + TEXT 输出到一个可被 KiCad 7+ 打开的 sch 文件。
不含 symbol 主体(lib_symbols 留空 stub),所以 KiCad 里组件会渲染
成红色 "?" 占位,但布线 + 位置 + Designator/Value 属性都正确。完整
symbol 库导出留 Phase 2。
模块结构:
tools/epro2/kicad/sexpr.py 手写 S-expr emitter,Sym 标记裸符号,
str 自动加引号 + 转义;float 去尾零;
bool→yes/no;NaN/Inf 主动报错
tools/epro2/kicad/_sexpr_reader.py 极简 S-expr parser,仅给 round-trip
测试用(非完整 KiCad reader)
tools/epro2/kicad/sch_writer.py write_sch_page(doc) → str;处理:
LINE → (wire (pts ...) ...)
COMPONENT → (symbol (lib_id facere:<partId>)
(at x y rot) (property Reference ...) ...)
TEXT → (text "..." (at ...))
单位 mil → mm × 0.0254;零长 wire 跳过
tools/epro2/kicad/__main__.py CLI: --doc <uuid> | --all-sch
ESP-VoCat 验证(python -m tools.epro2.kicad <project> --all-sch):
9 SCH_PAGE 全部转换成功
P1_408c9f4f.kicad_sch wires= 6 symbols= 10 text= 0 skipped= 2 (370 lines)
P1_ee409917.kicad_sch wires= 20 symbols= 14 text= 0 skipped= 3
P1_54743d77.kicad_sch wires= 42 symbols= 30 text= 3
Overview_dc13d6d2.kicad_sch wires= 0 symbols= 1 text= 34 (说明页)
MCU_510cff33.kicad_sch wires= 91 symbols= 86 text= 9
Interface_b336a7c7.kicad_sch wires= 99 symbols= 95 text= 6
P1_5c38f45b.kicad_sch wires=179 symbols= 86 text= 9
P1_45092758.kicad_sch wires=187 symbols=138 text= 10 (主图)
codec_0b0163fa.kicad_sch wires=190 symbols=112 text= 10
输出落在 data/processed/kicad_sch/<filename>.kicad_sch(gitignore 内,
可重新生成;不入库)。
测试:6 个 sexpr 测 + 6 个 sch_writer 测,含 round-trip parse 验证。
parser/relations/project_relations 的旧 21 个不动,合计 **33/33 通过**。
下一步:
1. Phase 2 — symbol library 导出 (.kicad_sym),把 SYMBOL doc 的 PIN/RECT/
TEXT primitives 转 KiCad symbol 主体;填 lib_symbols 块让组件渲染
出真正的 schematic 符号
2. footprint library + .kicad_pcb 导出
3. 用 KiCad CLI (kicad-cli sch erc) 跑 ERC 校验
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
"""S-expression emitter tests."""
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from tools.epro2.kicad._sexpr_reader import parse
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from tools.epro2.kicad.sexpr import Sym, to_sexpr
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def test_round_trip_simple():
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src = [Sym("kicad_sch"), [Sym("version"), 20231120], [Sym("paper"), "A4"]]
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text = to_sexpr(src, pretty=False)
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parsed = parse(text)
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assert parsed[0] == "kicad_sch"
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assert parsed[1] == ["version", 20231120]
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assert parsed[2] == ["paper", "A4"]
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def test_string_escaping():
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text = to_sexpr([Sym("title"), 'a "quote" + \\backslash'], pretty=False)
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parsed = parse(text)
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assert parsed[1] == 'a "quote" + \\backslash'
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def test_float_formatting_strips_trailing_zeros():
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text = to_sexpr([Sym("x"), 1.500000], pretty=False)
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assert "1.5" in text
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assert "1.500000" not in text
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def test_bool_renders_as_yes_no():
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text = to_sexpr([Sym("hide"), True, False], pretty=False)
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parsed = parse(text)
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assert parsed == ["hide", "yes", "no"]
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def test_pretty_indent_keeps_round_trip():
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src = [Sym("kicad_sch"),
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[Sym("wire"), [Sym("pts"), [Sym("xy"), 1.0, 2.0], [Sym("xy"), 3.0, 4.0]]]]
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pretty = to_sexpr(src, pretty=True)
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flat = to_sexpr(src, pretty=False)
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assert parse(pretty) == parse(flat)
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def test_nan_inf_rejected():
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import math
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try:
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to_sexpr([Sym("x"), float("nan")])
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except ValueError:
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pass
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else:
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raise AssertionError("expected ValueError on NaN")
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try:
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to_sexpr([Sym("x"), math.inf])
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except ValueError:
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return
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raise AssertionError("expected ValueError on Inf")
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