Function xo_format_units

tools/libxo/libxo/libxo.c:5083–5135

}

static void
xo_format_units (xo_handle_t *xop, xo_field_info_t *xfip,
		 const char *value, ssize_t vlen)
{
    const char *fmt = xfip->xfi_format;
    ssize_t flen = xfip->xfi_flen;
    xo_xff_flags_t flags = xfip->xfi_flags;

    static char units_start_xml[] = " units=\"";
    static char units_start_html[] = " data-units=\"";

    if (!XOIF_ISSET(xop, XOIF_UNITS_PENDING)) {
	xo_format_content(xop, "units", NULL, value, vlen, fmt, flen, flags);
	return;
    }

    xo_buffer_t *xbp = &xop->xo_data;
    ssize_t start = xop->xo_units_offset;
    ssize_t stop = xbp->xb_curp - xbp->xb_bufp;

    if (xo_style(xop) == XO_STYLE_XML)
	xo_buf_append(xbp, units_start_xml, sizeof(units_start_xml) - 1);
    else if (xo_style(xop) == XO_STYLE_HTML)
	xo_buf_append(xbp, units_start_html, sizeof(units_start_html) - 1);
    else
	return;

    if (vlen)
	xo_data_escape(xop, value, vlen);
    else
	xo_do_format_field(xop, NULL, fmt, flen, flags);

    xo_buf_append(xbp, "\"", 1);

    ssize_t now = xbp->xb_curp - xbp->xb_bufp;
    ssize_t delta = now - stop;
    if (delta <= 0) {		/* Strange; no output to move */
	xbp->xb_curp = xbp->xb_bufp + stop; /* Reset buffer to prior state */
	return;
    }

    /*
     * Now we're in it alright.  We've need to insert the unit value
     * we just created into the right spot.  We make a local copy,
     * move it and then insert our copy.  We know there's room in the
     * buffer, since we're just moving this around.
     */
    char *buf = alloca(delta);

    memcpy(buf, xbp->xb_bufp + stop, delta);
    memmove(xbp->xb_bufp + start + delta, xbp->xb_bufp + start, stop - start);
    memmove(xbp->xb_bufp + start, buf, delta);
}

static ssize_t
xo_find_width (xo_handle_t *xop, xo_field_info_t *xfip,