Knowit
9213429a57
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>
89 lines
2.4 KiB
Python
89 lines
2.4 KiB
Python
"""Tiny S-expression parser used by tests for round-trip validation.
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Not a full KiCad reader — just enough to confirm our writer output is
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syntactically valid Lisp-flavored S-expr (balanced parens, quoted strings,
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numbers, symbols).
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"""
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from __future__ import annotations
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from typing import Iterator
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def tokens(src: str) -> Iterator[str]:
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i, n = 0, len(src)
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while i < n:
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c = src[i]
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if c.isspace():
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i += 1
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continue
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if c == "(":
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yield "("
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i += 1
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continue
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if c == ")":
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yield ")"
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i += 1
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continue
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if c == '"':
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j = i + 1
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buf = []
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while j < n:
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ch = src[j]
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if ch == "\\" and j + 1 < n:
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nxt = src[j + 1]
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buf.append({"\\": "\\", '"': '"', "n": "\n", "t": "\t"}.get(nxt, nxt))
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j += 2
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continue
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if ch == '"':
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break
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buf.append(ch)
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j += 1
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if j >= n:
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raise SyntaxError("unterminated string")
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yield '"' + "".join(buf) + '"'
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i = j + 1
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continue
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# bare token until whitespace or paren
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j = i
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while j < n and not src[j].isspace() and src[j] not in "()":
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j += 1
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yield src[i:j]
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i = j
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def parse(src: str):
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it = iter(tokens(src))
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def _read(tok):
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if tok == "(":
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out = []
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while True:
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try:
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nxt = next(it)
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except StopIteration:
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raise SyntaxError("unterminated list")
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if nxt == ")":
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return out
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out.append(_read(nxt))
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if tok == ")":
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raise SyntaxError("unexpected )")
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if tok.startswith('"') and tok.endswith('"'):
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return tok[1:-1]
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try:
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return int(tok)
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except ValueError:
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try:
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return float(tok)
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except ValueError:
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return tok # symbol
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try:
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first = next(it)
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except StopIteration:
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raise SyntaxError("empty input")
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val = _read(first)
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# Expect EOF
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for extra in it:
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raise SyntaxError(f"unexpected trailing token: {extra!r}")
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return val
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