Function _ensure_slicap

SLiCAP/schematic/latex_label.py:90–117

()

def _ensure_slicap() -> bool:
    global _slicap_ready, _slicap_check, _slicap_latex
    if _slicap_ready is not None:
        return _slicap_ready
    orig = os.getcwd()
    try:
        os.chdir(get_cache_dir())
        with contextlib.redirect_stdout(io.StringIO()):
            from SLiCAP.SLiCAPmath import _checkExpression
            from SLiCAP.SLiCAPhtml import _latex_ENG
            from SLiCAP.SLiCAPlatex import sub2rm
        _slicap_check = _checkExpression
        # IEEE typesetting: subscripts that are plain alphanumeric labels are set
        # upright (\mathrm) rather than italic.  Applied here, at the single
        # SLiCAP→LaTeX boundary, so every generated equation/symbol — component
        # value labels and the parameter & model tables alike — is formatted
        # consistently.  (Free-form user LaTeX fragments do not pass through here
        # and keep whatever formatting the user wrote.)
        def _latex_ieee(sympy_obj):
            s = _latex_ENG(sympy_obj)
            return sub2rm(s) if s else s
        _slicap_latex = _latex_ieee
        _slicap_ready = True
    except Exception:
        _slicap_ready = False
    finally:
        os.chdir(orig)
    return _slicap_ready


# ── calibration ───────────────────────────────────────────────────────────────