mirror of
https://github.com/wader/fq.git
synced 2024-11-23 18:56:52 +03:00
233 lines
7.0 KiB
Plaintext
233 lines
7.0 KiB
Plaintext
# TODO: introspect and show doc, reflection somehow?
|
|
def help:
|
|
( builtins[]
|
|
, "^C interrupt"
|
|
, "^D exit REPL"
|
|
) | println;
|
|
|
|
# TODO: escape for safe key names
|
|
# path ["a", 1, "b"] -> "a[1].b"
|
|
def path_to_expr:
|
|
if length == 0 then "."
|
|
else
|
|
map(if type == "number" then "[", ., "]" else ".", . end) | join("")
|
|
end;
|
|
|
|
# TODO: don't use eval? should support '.a.b[1]."c.c"' and escapes?
|
|
def expr_to_path:
|
|
( if type != "string" then error("require string argument") end
|
|
| eval("null | path(\(.))")
|
|
);
|
|
|
|
def trim: capture("^\\s*(?<str>.*?)\\s*$"; "").str;
|
|
|
|
# does +1 and [:1] as " "*0 is null
|
|
def rpad($s; $w): . + ($s * ($w+1-length))[1:];
|
|
|
|
# helper to build path query/generate functions for tree structures with
|
|
# non-unique children, ex: mp4_path
|
|
def tree_path(children; name; $v):
|
|
def _lookup:
|
|
# add implicit zeros to get first value
|
|
# ["a", "b", 1] => ["a", 0, "b", 1]
|
|
def _normalize_path:
|
|
( . as $np
|
|
| if $np | last | type == "string" then $np+[0] end
|
|
# state is [path acc, possible pending zero index]
|
|
| ( reduce .[] as $np ([[], []];
|
|
if $np | type == "string" then
|
|
[(.[0]+.[1]+[$np]), [0]]
|
|
else
|
|
[.[0]+[$np], []]
|
|
end
|
|
))
|
|
)[0];
|
|
( . as $c
|
|
| $v
|
|
| expr_to_path
|
|
| _normalize_path
|
|
| reduce .[] as $n ($c;
|
|
if $n | type == "string" then
|
|
children | map(select(name==$n))
|
|
else
|
|
.[$n]
|
|
end
|
|
)
|
|
);
|
|
def _path:
|
|
[ . as $r
|
|
| $v._path as $p
|
|
| foreach range(($p | length)/2) as $i (null; null;
|
|
( ($r | getpath($p[0:($i+1)*2]) | name) as $name
|
|
| [($r | getpath($p[0:($i+1)*2-1]))[] | name][0:$p[($i*2)+1]+1] as $before
|
|
| [ $name
|
|
, ($before | map(select(. == $name)) | length)-1
|
|
]
|
|
)
|
|
)
|
|
| [ ".", .[0],
|
|
(.[1] | if . == 0 then empty else "[", ., "]" end)
|
|
]
|
|
]
|
|
| flatten
|
|
| join("");
|
|
if $v | type == "string" then _lookup
|
|
else _path
|
|
end;
|
|
|
|
|
|
# [{a: 123, ...}, ...]
|
|
# colmap maps something into [col, ...]
|
|
# render maps [{column: 0, string: "coltext", maxwidth: 12}, ..] into a row
|
|
def table(colmap; render):
|
|
def _column_widths:
|
|
[ . as $rs
|
|
| range($rs[0] | length) as $i
|
|
| [$rs[] | colmap | (.[$i] | length)]
|
|
| max
|
|
];
|
|
if length == 0 then ""
|
|
else
|
|
( _column_widths as $cw
|
|
| . as $rs
|
|
| ( $rs[]
|
|
| . as $r
|
|
| [ range($r | length) as $i
|
|
| ($r | colmap | {column: $i, string: .[$i], maxwidth: $cw[$i]})
|
|
]
|
|
| render
|
|
)
|
|
)
|
|
end;
|
|
|
|
# convert number to array of bytes
|
|
def number_to_bytes($bits):
|
|
def _number_to_bytes($d):
|
|
if . > 0 then
|
|
. % $d, (. div $d | _number_to_bytes($d))
|
|
else
|
|
empty
|
|
end;
|
|
if . == 0 then [0]
|
|
else [_number_to_bytes(1 bsl $bits)] | reverse
|
|
end;
|
|
def number_to_bytes:
|
|
number_to_bytes(8);
|
|
|
|
def from_radix($base; $table):
|
|
( split("")
|
|
| reverse
|
|
| map($table[.])
|
|
| if . == null then error("invalid char \(.)") end
|
|
# state: [power, ans]
|
|
| reduce .[] as $c ([1,0];
|
|
( (.[0] * $base) as $b
|
|
| [$b, .[1] + (.[0] * $c)]
|
|
)
|
|
)
|
|
| .[1]
|
|
);
|
|
|
|
def to_radix($base; $table):
|
|
if . == 0 then "0"
|
|
else
|
|
( [ recurse(if . > 0 then . div $base else empty end) | . % $base]
|
|
| reverse
|
|
| .[1:]
|
|
| if $base <= ($table | length) then
|
|
map($table[.]) | join("")
|
|
else
|
|
error("base too large")
|
|
end
|
|
)
|
|
end;
|
|
|
|
def radix($base; $to_table; $from_table):
|
|
if . | type == "number" then to_radix($base; $to_table)
|
|
elif . | type == "string" then from_radix($base; $from_table)
|
|
else error("needs to be number of string")
|
|
end;
|
|
|
|
def radix2: radix(2; "01"; {"0": 0, "1": 1});
|
|
def radix8: radix(8; "01234567"; {"0": 0, "1": 1, "2": 2, "3": 3,"4": 4, "5": 5, "6": 6, "7": 7});
|
|
def radix16:radix(16; "0123456789abcdef"; {
|
|
"0": 0, "1": 1, "2": 2, "3": 3,"4": 4, "5": 5, "6": 6, "7": 7, "8": 8, "9": 9,
|
|
"a": 10, "b": 11, "c": 12, "d": 13, "e": 14, "f": 15
|
|
});
|
|
def radix62: radix(62; "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; {
|
|
"0": 0, "1": 1, "2": 2, "3": 3,"4": 4, "5": 5, "6": 6, "7": 7, "8": 8, "9": 9,
|
|
"A": 10, "B": 11, "C": 12, "D": 13, "E": 14, "F": 15, "G": 16,
|
|
"H": 17, "I": 18, "J": 19, "K": 20, "L": 21, "M": 22, "N": 23,
|
|
"O": 24, "P": 25, "Q": 26, "R": 27, "S": 28, "T": 29, "U": 30,
|
|
"V": 31, "W": 32, "X": 33, "Y": 34, "Z": 35,
|
|
"a": 36, "b": 37, "c": 38, "d": 39, "e": 40, "f": 41, "g": 42,
|
|
"h": 43, "i": 44, "j": 45, "k": 46, "l": 47, "m": 48, "n": 49,
|
|
"o": 50, "p": 51, "q": 52, "r": 53, "s": 54, "t": 55, "u": 56,
|
|
"v": 57, "w": 58, "x": 59, "y": 60, "z": 61
|
|
});
|
|
def radix62: radix(62; "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; {
|
|
"A": 0, "B": 1, "C": 2, "D": 3, "E": 4, "F": 5, "G": 6,
|
|
"H": 7, "I": 8, "J": 9, "K": 10, "L": 11, "M": 12, "N": 13,
|
|
"O": 14, "P": 15, "Q": 16, "R": 17, "S": 18, "T": 19, "U": 20,
|
|
"V": 21, "W": 22, "X": 23, "Y": 24, "Z": 25,
|
|
"a": 26, "b": 27, "c": 28, "d": 29, "e": 30, "f": 31, "g": 32,
|
|
"h": 33, "i": 34, "j": 35, "k": 36, "l": 37, "m": 38, "n": 39,
|
|
"o": 40, "p": 41, "q": 42, "r": 43, "s": 44, "t": 45, "u": 46,
|
|
"v": 47, "w": 48, "x": 49, "y": 50, "z": 51,
|
|
"0": 52, "1": 53, "2": 54, "3": 55, "4": 56, "5": 57, "6": 58, "7": 59, "8": 60, "9": 61
|
|
});
|
|
def radix64: radix(64; "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; {
|
|
"A": 0, "B": 1, "C": 2, "D": 3, "E": 4, "F": 5, "G": 6,
|
|
"H": 7, "I": 8, "J": 9, "K": 10, "L": 11, "M": 12, "N": 13,
|
|
"O": 14, "P": 15, "Q": 16, "R": 17, "S": 18, "T": 19, "U": 20,
|
|
"V": 21, "W": 22, "X": 23, "Y": 24, "Z": 25,
|
|
"a": 26, "b": 27, "c": 28, "d": 29, "e": 30, "f": 31, "g": 32,
|
|
"h": 33, "i": 34, "j": 35, "k": 36, "l": 37, "m": 38, "n": 39,
|
|
"o": 40, "p": 41, "q": 42, "r": 43, "s": 44, "t": 45, "u": 46,
|
|
"v": 47, "w": 48, "x": 49, "y": 50, "z": 51,
|
|
"0": 52, "1": 53, "2": 54, "3": 55, "4": 56, "5": 57, "6": 58, "7": 59, "8": 60, "9": 61,
|
|
"+": 62, "/": 63
|
|
});
|
|
|
|
# like iprint
|
|
def i:
|
|
{
|
|
bin: "0b\(radix2)",
|
|
oct: "0o\(radix8)",
|
|
dec: "\(.)",
|
|
hex: "0x\(radix16)",
|
|
str: (try ([.] | implode) catch null),
|
|
};
|
|
|
|
# produce a/b pairs for diffing values
|
|
def diff($a; $b):
|
|
( ( $a | type) as $at
|
|
| ( $b | type) as $bt
|
|
| if $at != $bt then {a: $a, b: $b}
|
|
elif ($at == "array" or $at == "object") then
|
|
( [ ((($a | keys) + ($b | keys)) | unique)[] as $k
|
|
| {
|
|
($k | tostring):
|
|
( [($a | has($k)), ($b | has($k))]
|
|
| if . == [true, true] then diff($a[$k]; $b[$k])
|
|
elif . == [true, false] then {a: $a[$k]}
|
|
elif . == [false, true] then {b: $b[$k]}
|
|
else empty # TODO: can't happen? error?
|
|
end
|
|
)
|
|
}
|
|
]
|
|
| add
|
|
| if . == null then empty end
|
|
)
|
|
else
|
|
if $a == $b then empty else {a: $a, b: $b} end
|
|
end
|
|
);
|
|
|
|
def in_bits_range($p):
|
|
select(scalars and ._start? and ._start <= $p and $p < ._stop);
|
|
def in_bytes_range($p):
|
|
select(scalars and ._start? and ._start/8 <= $p and $p < ._stop/8);
|
|
|