func init() {
expr.Bind(expr_actual)
expr_single.Bind(expr_single_actual)
item_type.Bind(item_type_actual)
sequence_type.Bind(sequence_type_actual)
}
var (
Rule = xpath
xpath = expr
param_list = tokSepBy1(param, comma)
param = tokSeq(dollar_sign, eq_name, sickle.Opt(type_declaration))
function_body = enclosed_expr
enclosed_expr = tokSeq(left_brace, expr, right_brace)
expr = sickle.Indirect()
expr_actual = tokSepBy1(expr_single, comma)
expr_single = sickle.Indirect()
expr_single_actual = sickle.Choice(
for_expr,
let_expr,
quantified_expr,
if_expr,
or_expr,
func tokOptSeq(rules ...sickle.Rule) sickle.Rule {
return sickle.Opt(tokSeq(rules...))
}
comment_contents = sickle.Many1(sickle.Right(
sickle.Not(sickle.Choice(comment_start, comment_end)),
char,
))
comment_start = sickle.TokenStr("(:")
comment_end = sickle.TokenStr(":)")
char = sickle.Choice(
ws_char,
sickle.ChRange(0x20, 0xD7FF),
sickle.ChRange(0x20, 0xD7FF),
sickle.ChRange(0x20, 0xD7FF),
)
ignore_optional_ws = sickle.Ignore(sickle.Opt(ws))
)
// Delimiting terminal symbols
var (
delimiting_terminal_symbol = sickle.Choice(
bang,
not_equal,
pound_sign,
dollar_sign,
left_paren,
right_paren,
asterisk,
plus_sign,
comma,
minus_sign,
