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152 lines
3.4 KiB
C
152 lines
3.4 KiB
C
/** \file builtin.h
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Prototypes for functions for executing builtin functions.
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*/
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#ifndef FISH_BUILTIN_H
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#define FISH_BUILTIN_H
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#include <wchar.h>
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#include "util.h"
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enum
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{
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COMMAND_NOT_BUILTIN,
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BUILTIN_REGULAR,
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BUILTIN_FUNCTION
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}
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;
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/**
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Error message on missing argument
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*/
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#define BUILTIN_ERR_MISSING L": Expected argument"
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/**
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Error message on invalid combination of options
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*/
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#define BUILTIN_ERR_COMBO L": Invalid combination of options"
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/**
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Error message on multiple scope levels for variables
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*/
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#define BUILTIN_ERR_GLOCAL L": Variable can only be one of universal, global and local"
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/**
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Error message for specifying both export and unexport to set/read
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*/
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#define BUILTIN_ERR_EXPUNEXP L": Variable can't be both exported and unexported"
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/**
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Error message for unknown switch
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*/
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#define BUILTIN_ERR_UNKNOWN L": Unknown option"
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#define BUILTIN_ERR_VARCHAR L"%ls: Invalid character in variable name: '%lc'. Only alphanumerical characters and underscores are valid in a variable name.\n"
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#define BUILTIN_ERR_VARNAME_ZERO L"%ls: Variable name can not be the empty string\n"
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/**
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Stringbuffer used to represent standard output
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*/
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extern string_buffer_t *sb_out;
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/**
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Stringbuffer used to represent standard error
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*/
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extern string_buffer_t *sb_err;
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/**
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Kludge. Tells builtins if output is to screen
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*/
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extern int builtin_out_redirect;
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/**
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Kludge. Tells builtins if error is to screen
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*/
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extern int builtin_err_redirect;
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/**
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Initialize builtin data.
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*/
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void builtin_init();
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/**
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Destroy builtin data.
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*/
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void builtin_destroy();
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/**
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Is there a builtin command with the given name?
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*/
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int builtin_exists( wchar_t *cmd );
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/**
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Execute a builtin command
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\param argv Array containing the command and parameters
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of the builtin. The list is terminated by a
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null pointer. This syntax resembles the syntax
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for exec.
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\return the exit status of the builtin command
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*/
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int builtin_run( wchar_t **argv );
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/**
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Insert all builtin names into l. These are not copies of the strings and should not be freed after use.
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*/
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void builtin_get_names( array_list_t *list );
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/**
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Pushes a new set of input/output to the stack. The new stdin is supplied, a new set of output string_buffer_ts is created.
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*/
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void builtin_push_io( int stdin_fd );
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/**
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Pops a set of input/output from the stack. The output string_buffer_ts are destroued, but the input file is not closed.
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*/
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void builtin_pop_io();
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/**
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Return a one-line description of the specified builtin
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*/
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const wchar_t *builtin_get_desc( const wchar_t *b );
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/**
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Counts the number of non null pointers in the specified array
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*/
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int builtin_count_args( wchar_t **argv );
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/**
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Print help for the specified builtin. If \c b is sb_err, also print the line information
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*/
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void builtin_print_help( wchar_t *cmd, string_buffer_t *b );
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/**
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The set builtin, used for setting variables. Defined in builtin_set.c.
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*/
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int builtin_set(wchar_t **argv);
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/**
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The commandline builtin, used for setting and getting the contents of the commandline. Defined in builtin_commandline.c.
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*/
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int builtin_commandline(wchar_t **argv);
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/**
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The ulimit builtin, used for setting resource limits. Defined in builtin_ulimit.c.
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*/
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int builtin_ulimit(wchar_t **argv);
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/**
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This function works like wperror, but it prints its result into
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the sb_err string_buffer_t instead of to stderr. Used by the builtin
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commands.
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*/
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void builtin_wperror( const wchar_t *s);
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#endif
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