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0a043f9096
Now repl, slurp and help implemented using same query rewrite. Include filename context in error if possible. Add spew function that does opposite of slurp. Start of help infra, not done or documented yet. Show error pointer on parse error. Rename internal eval to _eval and make eval be wrapper that does rewrite and has various eror handling etc. Nicer repl, slupr and help errors.
145 lines
3.9 KiB
Plaintext
145 lines
3.9 KiB
Plaintext
# is here to be defined as early as possible to allow debugging
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# TODO: move some _* to builtin.jq etc?
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def stdin_tty: null | _stdin;
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def stdout_tty: null | _stdout;
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def print: tostring | _stdout;
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def println: ., "\n" | print;
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def printerr: tostring | _stderr;
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def printerrln: ., "\n" | printerr;
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def _debug($name):
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( (([$name, .] | tojson) | printerrln)
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, .
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);
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# jq compat
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def debug: _debug("DEBUG");
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def debug(f): . as $c | f | debug | $c;
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# jq compat, output to compact json to stderr and let input thru
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def stderr:
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( (tojson | printerr)
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, .
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);
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# try to be same exit codes as jq
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# TODO: jq seems to halt processing inputs on JSON decode error but not IO errors,
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# seems strange.
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# jq '(' <(echo 1) <(echo 2) ; echo $? => 3 and no inputs processed
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# jq '.' missing <(echo 2) ; echo $? => 2 and continues process inputs
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# jq '.' <(echo 'a') <(echo 123) ; echo $? => 4 and stops process inputs
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# jq '.' missing <(echo 'a') <(echo 123) ; echo $? => 2 ???
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# jq '"a"+.' <(echo '"a"') <(echo 1) ; echo $? => 5
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# jq '"a"+.' <(echo 1) <(echo '"a"') ; echo $? => 0
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def _exit_code_args_error: 2;
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def _exit_code_input_io_error: 2;
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def _exit_code_compile_error: 3;
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def _exit_code_input_decode_error: 4;
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def _exit_code_expr_error: 5;
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def _global_var($k): _global_state[$k];
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def _global_var($k; f): _global_state(_global_state | .[$k] |= f) | .[$k];
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def _include_paths: _global_var("include_paths");
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def _include_paths(f): _global_var("include_paths"; f);
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def _options_stack: _global_var("options_stack");
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def _options_stack(f): _global_var("options_stack"; f);
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def _cli_last_expr_error: _global_var("cli_last_expr_error");
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def _cli_last_expr_error(f): _global_var("cli_last_expr_error"; f);
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def _input_filename: _global_var("input_filename");
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def _input_filename(f): _global_var("input_filename"; f);
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def _input_filenames: _global_var("input_filenames");
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def _input_filenames(f): _global_var("input_filenames"; f);
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def _input_strings: _global_var("input_strings");
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def _input_strings(f): _global_var("input_strings"; f);
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def _input_strings_lines: _global_var("input_strings_lines");
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def _input_strings_lines(f): _global_var("input_strings_lines"; f);
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def _input_io_errors: _global_var("input_io_errors");
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def _input_io_errors(f): _global_var("input_io_errors"; f);
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def _input_decode_errors: _global_var("input_decode_errors");
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def _input_decode_errors(f): _global_var("input_decode_errors"; f);
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def _slurps: _global_var("slurps");
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def _slurps(f): _global_var("slurps"; f);
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# call f and finally eval fin even if empty or error.
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# _finally(1; debug)
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# _finally(null; debug)
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# _finally(error("a"); debug)
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# _finally(empty; debug)
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# _finally(1,2,3; debug)
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# _finally({a:1}; debug)
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def _finally(f; fin):
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try
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( f
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, (fin | empty)
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)
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catch
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( fin as $_
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| error
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);
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# TODO: figure out a saner way to force int
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def _to_int: (. % (. + 1));
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# integer division
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# inspried by https://github.com/itchyny/gojq/issues/63#issuecomment-765066351
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def _intdiv($a; $b):
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( ($a | _to_int) as $a
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| ($b | _to_int) as $b
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| ($a - ($a % $b)) / $b
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);
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def _esc: "\u001b";
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def _ansi:
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{
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clear_line: "\(_esc)[2K",
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};
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# valid jq identifier, start with alpha or underscore then zero or more alpha, num or underscore
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def _is_ident: type == "string" and test("^[a-zA-Z_][a-zA-Z_0-9]*$");
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# escape " and \
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def _escape_ident: gsub("(?<g>[\\\\\"])"; "\\\(.g)");
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# format number with fixed number of decimals
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def _numbertostring($decimals):
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( . as $n
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| [ (. % (. + 1)) # truncate to integer
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, "."
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, foreach range($decimals) as $_ (1; . * 10; ($n * .) % 10)
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]
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| join("")
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);
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def _repeat_break(f):
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try repeat(f)
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catch
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if . == "break" then empty
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else error
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end;
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def _recurse_break(f):
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try recurse(f)
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catch
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if . == "break" then empty
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else error
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end;
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def _is_scalar:
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type |. != "array" and . != "object";
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def _is_context_canceled_error: . == "context canceled";
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def _error_str($contexts): (["error"] + $contexts + [.]) | join(": ");
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def _error_str: _error_str([]);
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