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chore: import upstream snapshot with attribution
2026-07-13 12:29:30 +08:00

661 lines
20 KiB
Plaintext

fn __zero_std_toml_validate(bytes: Span<u8>) -> Bool {
var index: usize = 0
while index < std.mem.len(bytes) {
let line_end: usize = __zero_std_toml_line_end(bytes, index)
let content_end: usize = __zero_std_toml_comment_end(bytes, index, line_end)
let start: usize = __zero_std_toml_skip_ws(bytes, index, content_end)
if start < content_end {
if bytes[start] == 91_u8 {
let table_end: Maybe<usize> = __zero_std_toml_table_end(bytes, start, content_end)
if !table_end.has {
return false
}
} else {
let equals: Maybe<usize> = __zero_std_toml_find_equals(bytes, start, content_end)
if !equals.has {
return false
}
let key_end: usize = __zero_std_toml_trim_end(bytes, start, equals.value)
let value_start: usize = __zero_std_toml_skip_ws(bytes, equals.value + 1, content_end)
let value_end: usize = __zero_std_toml_trim_end(bytes, value_start, content_end)
if key_end == start || value_start == value_end || !__zero_std_toml_value_valid(bytes[value_start..value_end]) {
return false
}
}
}
index = line_end
if index < std.mem.len(bytes) && bytes[index] == 10_u8 {
index = index + 1
}
}
return true
}
fn __zero_std_toml_validate_bytes(bytes: Span<u8>) -> Bool {
return __zero_std_toml_validate(bytes)
}
fn __zero_std_toml_field(bytes: Span<u8>, key: Span<u8>) -> Maybe<Span<u8>> {
var table_start: usize = 0
var table_end: usize = 0
var has_table: Bool = false
var index: usize = 0
while index < std.mem.len(bytes) {
let line_end: usize = __zero_std_toml_line_end(bytes, index)
let content_end: usize = __zero_std_toml_comment_end(bytes, index, line_end)
let start: usize = __zero_std_toml_skip_ws(bytes, index, content_end)
if start < content_end {
if bytes[start] == 91_u8 {
let next_table_end: Maybe<usize> = __zero_std_toml_table_end(bytes, start, content_end)
if !next_table_end.has {
return null
}
table_start = start + 1
table_end = next_table_end.value
has_table = true
} else {
let equals: Maybe<usize> = __zero_std_toml_find_equals(bytes, start, content_end)
if !equals.has {
return null
}
let field_key_end: usize = __zero_std_toml_trim_end(bytes, start, equals.value)
let value_start: usize = __zero_std_toml_skip_ws(bytes, equals.value + 1, content_end)
let value_end: usize = __zero_std_toml_trim_end(bytes, value_start, content_end)
var table: Span<u8> = bytes[0..0]
if has_table {
table = bytes[table_start..table_end]
}
if __zero_std_toml_key_matches(table, bytes[start..field_key_end], key) {
return bytes[value_start..value_end]
}
}
}
index = line_end
if index < std.mem.len(bytes) && bytes[index] == 10_u8 {
index = index + 1
}
}
return null
}
fn __zero_std_toml_string_decode(buffer: MutSpan<u8>, value: Span<u8>) -> Maybe<Span<u8>> {
if std.mem.len(value) < 2 || value[0] != 34_u8 || value[std.mem.len(value) - 1] != 34_u8 {
return null
}
var input: usize = 1
var output: usize = 0
while input + 1 < std.mem.len(value) {
var byte: u8 = value[input]
if byte == 92_u8 {
input = input + 1
if input + 1 >= std.mem.len(value) {
return null
}
let escaped: u8 = value[input]
if escaped == 34_u8 {
byte = 34_u8
} else if escaped == 92_u8 {
byte = 92_u8
} else if escaped == 110_u8 {
byte = 10_u8
} else if escaped == 114_u8 {
byte = 13_u8
} else if escaped == 116_u8 {
byte = 9_u8
} else {
return null
}
}
if output >= std.mem.len(buffer) {
return null
}
buffer[output] = byte
output = output + 1
input = input + 1
}
return buffer[..output]
}
fn __zero_std_toml_string(buffer: MutSpan<u8>, bytes: Span<u8>, key: Span<u8>) -> Maybe<Span<u8>> {
let raw: Maybe<Span<u8>> = __zero_std_toml_field(bytes, key)
if !raw.has {
return null
}
return __zero_std_toml_string_decode(buffer, raw.value)
}
fn __zero_std_toml_u32(bytes: Span<u8>, key: Span<u8>) -> Maybe<u32> {
let raw: Maybe<Span<u8>> = __zero_std_toml_field(bytes, key)
if !raw.has {
return null
}
return std.parse.parseU32(raw.value)
}
fn __zero_std_toml_i32(bytes: Span<u8>, key: Span<u8>) -> Maybe<i32> {
let raw: Maybe<Span<u8>> = __zero_std_toml_field(bytes, key)
if !raw.has {
return null
}
return std.parse.parseI32(raw.value)
}
fn __zero_std_toml_bool(bytes: Span<u8>, key: Span<u8>) -> Maybe<Bool> {
let raw: Maybe<Span<u8>> = __zero_std_toml_field(bytes, key)
if !raw.has {
return null
}
return std.parse.parseBool(raw.value)
}
fn __zero_std_toml_array_count(value: Span<u8>) -> Maybe<usize> {
if !__zero_std_toml_array_valid(value) {
return null
}
var count: usize = 0
var index: usize = 1
let end: usize = std.mem.len(value) - 1
while index < end {
index = __zero_std_toml_skip_ws(value, index, end)
if index == end {
return count
}
let item_end: Maybe<usize> = __zero_std_toml_array_item_end(value, index, end)
if !item_end.has {
return null
}
count = count + 1
index = item_end.value
index = __zero_std_toml_skip_ws(value, index, end)
if index < end {
index = index + 1
}
}
return count
}
fn __zero_std_toml_array_value(value: Span<u8>, ordinal: usize) -> Maybe<Span<u8>> {
if !__zero_std_toml_array_valid(value) {
return null
}
var count: usize = 0
var index: usize = 1
let end: usize = std.mem.len(value) - 1
while index < end {
index = __zero_std_toml_skip_ws(value, index, end)
if index == end {
return null
}
let item_end: Maybe<usize> = __zero_std_toml_array_item_end(value, index, end)
if !item_end.has {
return null
}
if count == ordinal {
return value[index..item_end.value]
}
count = count + 1
index = item_end.value
index = __zero_std_toml_skip_ws(value, index, end)
if index < end {
index = index + 1
}
}
return null
}
fn __zero_std_toml_array_string(buffer: MutSpan<u8>, value: Span<u8>, ordinal: usize) -> Maybe<Span<u8>> {
let raw: Maybe<Span<u8>> = __zero_std_toml_array_value(value, ordinal)
if !raw.has {
return null
}
return __zero_std_toml_string_decode(buffer, raw.value)
}
fn __zero_std_toml_array_u32(value: Span<u8>, ordinal: usize) -> Maybe<u32> {
let raw: Maybe<Span<u8>> = __zero_std_toml_array_value(value, ordinal)
if !raw.has {
return null
}
return std.parse.parseU32(raw.value)
}
fn __zero_std_toml_array_i32(value: Span<u8>, ordinal: usize) -> Maybe<i32> {
let raw: Maybe<Span<u8>> = __zero_std_toml_array_value(value, ordinal)
if !raw.has {
return null
}
return std.parse.parseI32(raw.value)
}
fn __zero_std_toml_array_bool(value: Span<u8>, ordinal: usize) -> Maybe<Bool> {
let raw: Maybe<Span<u8>> = __zero_std_toml_array_value(value, ordinal)
if !raw.has {
return null
}
return std.parse.parseBool(raw.value)
}
fn __zero_std_toml_key_byte_valid(byte: u8) -> Bool {
return (byte >= 65_u8 && byte <= 90_u8) || (byte >= 97_u8 && byte <= 122_u8) || (byte >= 48_u8 && byte <= 57_u8) || byte == 45_u8 || byte == 95_u8
}
fn __zero_std_toml_dotted_key_valid(key: Span<u8>) -> Bool {
if std.mem.len(key) == 0 {
return false
}
var index: usize = 0
var segment_has_byte: Bool = false
while index < std.mem.len(key) {
let byte: u8 = key[index]
if byte == 46_u8 {
if !segment_has_byte {
return false
}
segment_has_byte = false
} else if __zero_std_toml_key_byte_valid(byte) {
segment_has_byte = true
} else {
return false
}
index = index + 1
}
return segment_has_byte
}
fn __zero_std_toml_write_key_value_string(buffer: MutSpan<u8>, key: Span<u8>, value: Span<u8>) -> Maybe<Span<u8>> {
if !__zero_std_toml_dotted_key_valid(key) {
return null
}
var cursor: usize = 0
let key_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, key)
if !key_end.has {
return null
}
cursor = key_end.value
let sep_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, " = ")
if !sep_end.has {
return null
}
cursor = sep_end.value
let value_end: Maybe<usize> = __zero_std_toml_write_escaped_string(buffer, cursor, value)
if !value_end.has {
return null
}
cursor = value_end.value
let line_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, "\n")
if !line_end.has {
return null
}
return buffer[..line_end.value]
}
fn __zero_std_toml_write_key_value_u32(buffer: MutSpan<u8>, key: Span<u8>, value: u32) -> Maybe<Span<u8>> {
if !__zero_std_toml_dotted_key_valid(key) {
return null
}
var cursor: usize = 0
let key_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, key)
if !key_end.has {
return null
}
cursor = key_end.value
let sep_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, " = ")
if !sep_end.has {
return null
}
cursor = sep_end.value
let digits: Maybe<Span<u8>> = std.fmt.u32(buffer[cursor..], value)
if !digits.has {
return null
}
cursor = cursor + std.mem.len(digits.value)
let line_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, "\n")
if !line_end.has {
return null
}
return buffer[..line_end.value]
}
fn __zero_std_toml_write_key_value_bool(buffer: MutSpan<u8>, key: Span<u8>, value: Bool) -> Maybe<Span<u8>> {
if !__zero_std_toml_dotted_key_valid(key) {
return null
}
var cursor: usize = 0
let key_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, key)
if !key_end.has {
return null
}
cursor = key_end.value
let sep_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, " = ")
if !sep_end.has {
return null
}
cursor = sep_end.value
var value_end: Maybe<usize> = null
if value {
value_end = __zero_std_toml_write_span(buffer, cursor, "true")
} else {
value_end = __zero_std_toml_write_span(buffer, cursor, "false")
}
if !value_end.has {
return null
}
cursor = value_end.value
let line_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, "\n")
if !line_end.has {
return null
}
return buffer[..line_end.value]
}
fn __zero_std_toml_write_table_header(buffer: MutSpan<u8>, table: Span<u8>) -> Maybe<Span<u8>> {
if !__zero_std_toml_dotted_key_valid(table) {
return null
}
var cursor: usize = 0
let open_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, "[")
if !open_end.has {
return null
}
cursor = open_end.value
let table_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, table)
if !table_end.has {
return null
}
cursor = table_end.value
let close_end: Maybe<usize> = __zero_std_toml_write_span(buffer, cursor, "]\n")
if !close_end.has {
return null
}
return buffer[..close_end.value]
}
fn __zero_std_toml_line_end(bytes: Span<u8>, start: usize) -> usize {
var index: usize = start
while index < std.mem.len(bytes) && bytes[index] != 10_u8 {
index = index + 1
}
return index
}
fn __zero_std_toml_skip_ws(bytes: Span<u8>, start: usize, end: usize) -> usize {
var index: usize = start
while index < end && (bytes[index] == 32_u8 || bytes[index] == 9_u8 || bytes[index] == 13_u8) {
index = index + 1
}
return index
}
fn __zero_std_toml_trim_end(bytes: Span<u8>, start: usize, end: usize) -> usize {
var index: usize = end
while index > start && (bytes[index - 1] == 32_u8 || bytes[index - 1] == 9_u8 || bytes[index - 1] == 13_u8) {
index = index - 1
}
return index
}
fn __zero_std_toml_comment_end(bytes: Span<u8>, start: usize, end: usize) -> usize {
var index: usize = start
var in_string: Bool = false
var escaped: Bool = false
while index < end {
let byte: u8 = bytes[index]
if escaped {
escaped = false
} else if in_string && byte == 92_u8 {
escaped = true
} else if byte == 34_u8 {
in_string = !in_string
} else if !in_string && byte == 35_u8 {
return __zero_std_toml_trim_end(bytes, start, index)
}
index = index + 1
}
return end
}
fn __zero_std_toml_find_equals(bytes: Span<u8>, start: usize, end: usize) -> Maybe<usize> {
var index: usize = start
var in_string: Bool = false
var escaped: Bool = false
while index < end {
let byte: u8 = bytes[index]
if escaped {
escaped = false
} else if in_string && byte == 92_u8 {
escaped = true
} else if byte == 34_u8 {
in_string = !in_string
} else if !in_string && byte == 61_u8 {
return index
}
index = index + 1
}
return null
}
fn __zero_std_toml_table_end(bytes: Span<u8>, start: usize, end: usize) -> Maybe<usize> {
if start >= end || bytes[start] != 91_u8 {
return null
}
var index: usize = start + 1
while index < end {
if bytes[index] == 93_u8 {
let trailing: usize = __zero_std_toml_skip_ws(bytes, index + 1, end)
if trailing == end && index > start + 1 {
return index
}
return null
}
index = index + 1
}
return null
}
fn __zero_std_toml_string_value_end(value: Span<u8>) -> Maybe<usize> {
if std.mem.len(value) == 0 || value[0] != 34_u8 {
return null
}
var index: usize = 1
var escaped: Bool = false
while index < std.mem.len(value) {
let byte: u8 = value[index]
if escaped {
if !(byte == 34_u8 || byte == 92_u8 || byte == 110_u8 || byte == 114_u8 || byte == 116_u8) {
return null
}
escaped = false
} else if byte == 92_u8 {
escaped = true
} else if byte == 34_u8 {
return index + 1
}
index = index + 1
}
return null
}
fn __zero_std_toml_array_valid(value: Span<u8>) -> Bool {
if std.mem.len(value) < 2 || value[0] != 91_u8 || value[std.mem.len(value) - 1] != 93_u8 {
return false
}
var index: usize = 1
let end: usize = std.mem.len(value) - 1
while index < end {
index = __zero_std_toml_skip_ws(value, index, end)
if index == end {
return true
}
let item_end: Maybe<usize> = __zero_std_toml_array_item_end(value, index, end)
if !item_end.has {
return false
}
index = item_end.value
index = __zero_std_toml_skip_ws(value, index, end)
if index < end {
if value[index] != 44_u8 {
return false
}
index = index + 1
}
}
return true
}
fn __zero_std_toml_array_item_end(value: Span<u8>, start: usize, end: usize) -> Maybe<usize> {
if start >= end {
return null
}
if value[start] == 34_u8 {
let item_end: Maybe<usize> = __zero_std_toml_string_value_end(value[start..end])
if !item_end.has {
return null
}
return start + item_end.value
}
var index: usize = start
while index < end && value[index] != 44_u8 {
index = index + 1
}
let trimmed: usize = __zero_std_toml_trim_end(value, start, index)
if trimmed == start {
return null
}
if __zero_std_toml_value_valid(value[start..trimmed]) {
return trimmed
}
return null
}
fn __zero_std_toml_value_valid(value: Span<u8>) -> Bool {
if std.mem.len(value) == 0 {
return false
}
if value[0] == 34_u8 {
let end: Maybe<usize> = __zero_std_toml_string_value_end(value)
return end.has && end.value == std.mem.len(value)
}
if value[0] == 91_u8 {
return __zero_std_toml_array_valid(value)
}
if std.mem.eql(value, "true") || std.mem.eql(value, "false") {
return true
}
let signed: Maybe<i32> = std.parse.parseI32(value)
if signed.has {
return true
}
let unsigned: Maybe<u32> = std.parse.parseU32(value)
return unsigned.has
}
fn __zero_std_toml_write_span(buffer: MutSpan<u8>, cursor: usize, bytes: Span<u8>) -> Maybe<usize> {
if cursor + std.mem.len(bytes) > std.mem.len(buffer) {
return null
}
var index: usize = 0
while index < std.mem.len(bytes) {
buffer[cursor + index] = bytes[index]
index = index + 1
}
return cursor + std.mem.len(bytes)
}
fn __zero_std_toml_write_escaped_string(buffer: MutSpan<u8>, cursor: usize, value: Span<u8>) -> Maybe<usize> {
var output: usize = cursor
let open_end: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\"")
if !open_end.has {
return null
}
output = open_end.value
var index: usize = 0
while index < std.mem.len(value) {
let byte: u8 = value[index]
if byte == 34_u8 {
let next: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\\\"")
if !next.has {
return null
}
output = next.value
} else if byte == 92_u8 {
let next: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\\\\")
if !next.has {
return null
}
output = next.value
} else if byte == 10_u8 {
let next: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\\n")
if !next.has {
return null
}
output = next.value
} else if byte == 13_u8 {
let next: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\\r")
if !next.has {
return null
}
output = next.value
} else if byte == 9_u8 {
let next: Maybe<usize> = __zero_std_toml_write_span(buffer, output, "\\t")
if !next.has {
return null
}
output = next.value
} else {
if byte < 32_u8 || output >= std.mem.len(buffer) {
return null
}
buffer[output] = byte
output = output + 1
}
index = index + 1
}
return __zero_std_toml_write_span(buffer, output, "\"")
}
fn __zero_std_toml_span_eq(left: Span<u8>, right: Span<u8>) -> Bool {
if std.mem.len(left) != std.mem.len(right) {
return false
}
var index: usize = 0
while index < std.mem.len(right) {
if left[index] != right[index] {
return false
}
index = index + 1
}
return true
}
fn __zero_std_toml_key_matches(table: Span<u8>, field: Span<u8>, query: Span<u8>) -> Bool {
if __zero_std_toml_span_eq(field, query) {
return true
}
if std.mem.len(table) == 0 {
return false
}
let table_len: usize = std.mem.len(table)
let field_len: usize = std.mem.len(field)
if std.mem.len(query) != table_len + 1 + field_len {
return false
}
var index: usize = 0
while index < table_len {
if query[index] != table[index] {
return false
}
index = index + 1
}
if query[table_len] != 46_u8 {
return false
}
var field_index: usize = 0
while field_index < field_len {
if query[table_len + 1 + field_index] != field[field_index] {
return false
}
field_index = field_index + 1
}
return true
}