Function xo_gettext_simplify_format

tools/libxo/libxo/libxo.c:5892–5958

* We are passed a pointer to a format string just past the "{G:}" * field. We build a simplified version of the format string. */

 * field.  We build a simplified version of the format string.
 */
static int
xo_gettext_simplify_format (xo_handle_t *xop UNUSED,
		       xo_buffer_t *xbp,
		       xo_field_info_t *fields,
		       int this_field,
		       const char *fmt UNUSED,
		       xo_simplify_field_func_t field_cb)
{
    unsigned ftype;
    xo_xff_flags_t flags;
    int field = this_field + 1;
    xo_field_info_t *xfip;
    char ch;

    for (xfip = &fields[field]; xfip->xfi_ftype; xfip++, field++) {
	ftype = xfip->xfi_ftype;
	flags = xfip->xfi_flags;

	if ((flags & XFF_GT_FIELD) && xfip->xfi_content && ftype != 'V') {
	    if (field_cb)
		field_cb(xfip->xfi_content, xfip->xfi_clen,
			 (flags & XFF_GT_PLURAL) ? 1 : 0);
	}

	switch (ftype) {
	case 'G':
	    /* Ignore gettext roles */
	    break;

	case XO_ROLE_NEWLINE:
	    xo_buf_append(xbp, "\n", 1);
	    break;

	case XO_ROLE_EBRACE:
	    xo_buf_append(xbp, "{", 1);
	    xo_buf_append(xbp, xfip->xfi_content, xfip->xfi_clen);
	    xo_buf_append(xbp, "}", 1);
	    break;

	case XO_ROLE_TEXT:
	    xo_buf_append(xbp, xfip->xfi_content, xfip->xfi_clen);
	    break;

	default:
	    xo_buf_append(xbp, "{", 1);
	    if (ftype != 'V') {
		ch = ftype;
		xo_buf_append(xbp, &ch, 1);
	    }

	    unsigned fnum = xfip->xfi_fnum ?: 0;
	    if (fnum) {
		char num[12];
		/* Field numbers are origin 1, not 0, following printf(3) */
		snprintf(num, sizeof(num), "%u", fnum);
		xo_buf_append(xbp, num, strlen(num));
	    }