-- sk_include string.spq
op skdoc_seq: (
cast(
{name:"sk_seq",
type:"op",
desc:"Generates a sequence 0..n-1 (like generate_series).",
args:[{name:"n",desc:"Number of elements to generate"}],
examples:[{i:"sk_seq(3)",o:"0, 1, 2"}] }, <skdoc>)
)
op sk_seq(n): (
split(sk_pad_left('', '0', n), '')
| unnest this
| count
| values count - 1
)
fn skdoc_hex_digits(): (
cast(
{name:"sk_hex_digits",
type:"func",
desc:"Returns the 16 hex digit characters as an array.",
args:[],
examples:[] }, <skdoc>)
)
fn sk_hex_digits(): (
split("0123456789abcdef", "")
)
fn skdoc_chr(): (
cast(
{name:"sk_chr",
type:"func",
desc:"Converts an integer (0-127) to its ASCII character.",
args:[{name:"code",desc:"ASCII code (0-127)"}],
examples:[{i:"sk_chr(65)",o:"'A'"}] }, <skdoc>)
)
fn sk_chr(code): (
let d = sk_hex_digits() |
hex(f'{d[code/16]}{d[code%16]}')::string
)
fn skdoc_alpha(): (
cast(
{name:"sk_alpha",
type:"func",
desc:"Converts 1-26 to A-Z.",
args:[{name:"n",desc:"Number 1-26"}],
examples:[{i:"sk_alpha(3)",o:"'C'"}] }, <skdoc>)
)
fn sk_alpha(n): (
sk_chr(64 + n)
)
