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/** \file builtin.h
Prototypes for functions for executing builtin functions.
*/
enum
{
COMMAND_NOT_BUILTIN,
BUILTIN_REGULAR,
BUILTIN_FUNCTION
}
;
#define BUILTIN_ERR_MISSING L": Expected argument"
#define BUILTIN_ERR_COMBO L": Invalid combination of options"
#define BUILTIN_ERR_GLOCAL L": Variable can only be one of universal, global and local"
#define BUILTIN_ERR_EXPUNEXP L": Variable can't be both exported and unexported"
#define BUILTIN_ERR_UNKNOWN L": Unknown option"
/**
Stringbuffer used to represent standard output
*/
extern string_buffer_t *sb_out;
/**
Stringbuffer used to represent standard error
*/
extern string_buffer_t *sb_err;
/**
Kludge. Tells builtins if output is to screen
*/
extern int builtin_out_redirect;
/**
Kludge. Tells builtins if error is to screen
*/
extern int builtin_err_redirect;
/**
Initialize builtin data.
*/
void builtin_init();
/**
Destroy builtin data.
*/
void builtin_destroy();
/**
Is there a builtin command with the given name?
*/
int builtin_exists( wchar_t *cmd );
/**
Execute a builtin command
\param argv Array containing the command and parameters
of the builtin. The list is terminated by a
null pointer. This syntax resembles the syntax
for exec.
\return the exit status of the builtin command
*/
int builtin_run( wchar_t **argv );
/**
Insert all builtin names into l. These are not copies of the strings and should not be freed after use.
*/
void builtin_get_names( array_list_t *list );
/**
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.
*/
void builtin_push_io( int stdin_fd );
/**
Pops a set of input/output from the stack. The output string_buffer_ts are destroued, but the input file is not closed.
*/
void builtin_pop_io();
/**
Return a one-line description of the specified builtin
*/
const wchar_t *builtin_get_desc( const wchar_t *b );
/**
Counts the number of non null pointers in the specified array
*/
int builtin_count_args( wchar_t **argv );
/**
Print help for the specified builtin. If \c b is sb_err, also print the line information
*/
void builtin_print_help( wchar_t *cmd, string_buffer_t *b );
int builtin_set(wchar_t **argv);
int builtin_commandline(wchar_t **argv);
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