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112 lines
4.2 KiB
C++
112 lines
4.2 KiB
C++
// Prototypes for functions for executing builtin functions.
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#ifndef FISH_BUILTIN_H
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#define FISH_BUILTIN_H
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#include <stddef.h>
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#include <vector>
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#include "common.h"
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class completion_t;
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class parser_t;
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class proc_status_t;
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class output_stream_t;
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struct io_streams_t;
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using completion_list_t = std::vector<completion_t>;
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/// Data structure to describe a builtin.
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struct builtin_data_t {
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// Name of the builtin.
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const wchar_t *name;
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// Function pointer to the builtin implementation.
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maybe_t<int> (*func)(parser_t &parser, io_streams_t &streams, wchar_t **argv);
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// Description of what the builtin does.
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const wchar_t *desc;
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bool operator<(const wcstring &) const;
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bool operator<(const builtin_data_t *) const;
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};
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/// The default prompt for the read command.
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#define DEFAULT_READ_PROMPT L"set_color green; echo -n read; set_color normal; echo -n \"> \""
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enum { COMMAND_NOT_BUILTIN, BUILTIN_REGULAR, BUILTIN_FUNCTION };
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/// Error message on missing argument.
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#define BUILTIN_ERR_MISSING _(L"%ls: Expected argument for option %ls\n")
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/// Error message on invalid combination of options.
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#define BUILTIN_ERR_COMBO _(L"%ls: Invalid combination of options\n")
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/// Error message on invalid combination of options.
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#define BUILTIN_ERR_COMBO2 _(L"%ls: Invalid combination of options,\n%ls\n")
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/// Error message on multiple scope levels for variables.
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#define BUILTIN_ERR_GLOCAL \
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_(L"%ls: Variable scope can only be one of universal, global and local\n")
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/// Error message for specifying both export and unexport to set/read.
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#define BUILTIN_ERR_EXPUNEXP _(L"%ls: Variable can't be both exported and unexported\n")
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/// Error message for unknown switch.
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#define BUILTIN_ERR_UNKNOWN _(L"%ls: Unknown option '%ls'\n")
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/// Error message for unexpected args.
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#define BUILTIN_ERR_ARG_COUNT0 _(L"%ls: Expected an argument\n")
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#define BUILTIN_ERR_ARG_COUNT1 _(L"%ls: Expected %d args, got %d\n")
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#define BUILTIN_ERR_ARG_COUNT2 _(L"%ls %ls: Expected %d args, got %d\n")
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#define BUILTIN_ERR_MIN_ARG_COUNT1 _(L"%ls: Expected at least %d args, got %d\n")
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#define BUILTIN_ERR_MAX_ARG_COUNT1 _(L"%ls: Expected at most %d args, got %d\n")
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/// Error message for invalid variable name.
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#define BUILTIN_ERR_VARNAME _(L"%ls: Variable name '%ls' is not valid. See `help identifiers`.\n")
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/// Error message for invalid bind mode name.
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#define BUILTIN_ERR_BIND_MODE _(L"%ls: mode name '%ls' is not valid. See `help identifiers`.\n")
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/// Error message when too many arguments are supplied to a builtin.
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#define BUILTIN_ERR_TOO_MANY_ARGUMENTS _(L"%ls: Too many arguments\n")
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/// Error message when integer expected
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#define BUILTIN_ERR_NOT_NUMBER _(L"%ls: Argument '%ls' is not a valid integer\n")
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/// Command that requires a subcommand was invoked without a recognized subcommand.
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#define BUILTIN_ERR_MISSING_SUBCMD _(L"%ls: Expected a subcommand to follow the command\n")
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#define BUILTIN_ERR_INVALID_SUBCMD _(L"%ls: Subcommand '%ls' is not valid\n")
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/// The send stuff to foreground message.
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#define FG_MSG _(L"Send job %d, '%ls' to foreground\n")
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void builtin_init();
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bool builtin_exists(const wcstring &cmd);
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proc_status_t builtin_run(parser_t &parser, wchar_t **argv, io_streams_t &streams);
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wcstring_list_t builtin_get_names();
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void builtin_get_names(completion_list_t *list);
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const wchar_t *builtin_get_desc(const wcstring &name);
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wcstring builtin_help_get(parser_t &parser, const wchar_t *cmd);
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void builtin_print_help(parser_t &parser, const io_streams_t &streams, const wchar_t *name,
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wcstring *error_message = nullptr);
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int builtin_count_args(const wchar_t *const *argv);
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void builtin_unknown_option(parser_t &parser, io_streams_t &streams, const wchar_t *cmd,
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const wchar_t *opt);
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void builtin_missing_argument(parser_t &parser, io_streams_t &streams, const wchar_t *cmd,
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const wchar_t *opt, bool print_hints = true);
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void builtin_print_error_trailer(parser_t &parser, output_stream_t &b, const wchar_t *cmd);
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void builtin_wperror(const wchar_t *s, io_streams_t &streams);
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struct help_only_cmd_opts_t {
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bool print_help = false;
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};
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int parse_help_only_cmd_opts(help_only_cmd_opts_t &opts, int *optind, int argc, wchar_t **argv,
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parser_t &parser, io_streams_t &streams);
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#endif
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