Function xo_parse_fields

tools/libxo/libxo/libxo.c:5725–5886

}

static int
xo_parse_fields (xo_handle_t *xop, xo_field_info_t *fields,
		 unsigned num_fields, const char *fmt)
{
    const char *cp, *sp, *ep, *basep;
    unsigned field = 0;
    xo_field_info_t *xfip = fields;
    unsigned seen_fnum = 0;

    for (cp = fmt; *cp && field < num_fields; field++, xfip++) {
	xfip->xfi_start = cp;

	if (*cp == '\n') {
	    xfip->xfi_ftype = XO_ROLE_NEWLINE;
	    xfip->xfi_len = 1;
	    cp += 1;
	    continue;
	}

	if (*cp != '{') {
	    /* Normal text */
	    for (sp = cp; *sp; sp++) {
		if (*sp == '{' || *sp == '\n')
		    break;
	    }

	    xfip->xfi_ftype = XO_ROLE_TEXT;
	    xfip->xfi_content = cp;
	    xfip->xfi_clen = sp - cp;
	    xfip->xfi_next = sp;

	    cp = sp;
	    continue;
	}

	if (cp[1] == '{') {	/* Start of {{escaped braces}} */
	    xfip->xfi_start = cp + 1; /* Start at second brace */
	    xfip->xfi_ftype = XO_ROLE_EBRACE;

	    cp += 2;	/* Skip over _both_ characters */
	    for (sp = cp; *sp; sp++) {
		if (*sp == '}' && sp[1] == '}')
		    break;
	    }
	    if (*sp == '\0') {
		xo_failure(xop, "missing closing '}}': '%s'",
			   xo_printable(fmt));
		return -1;
	    }

	    xfip->xfi_len = sp - xfip->xfi_start + 1;

	    /* Move along the string, but don't run off the end */
	    if (*sp == '}' && sp[1] == '}') /* Paranoid; must be true */
		sp += 2;

	    cp = sp;
	    xfip->xfi_next = cp;