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#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <utils.h>
#include <commands.h>
/* **************************************************************** */
/* */
/* Interface to Readline Completion */
/* */
/* **************************************************************** */
/*
Generator function for command completion. STATE lets us know whether
to start from scratch; without any state (i.e. STATE == 0), then we
start at the top of the list.
*/
char *command_generator( const char *text, int state )
{
static int list_index, len;
char *name;
/*
If this is a new word to complete, initialize now. This includes
saving the length of TEXT for efficiency, and initializing the index
variable to 0.
*/
if( !state )
{
list_index = 0;
len = strlen( text );
}
/* Return the next name which partially matches from the command list. */
while( (name = current->list[list_index].name) )
{
list_index++;
if( strncmp(name, text, len) == 0 )
return( dupstr(name) );
}
/* If no names matched, then return NULL. */
return( (char *)NULL );
}
/*
Attempt to complete on the contents of TEXT. START and END show the
region of TEXT that contains the word to complete. We can use the
entire line in case we want to do some simple parsing. Return the
array of matches, or NULL if there aren't any.
*/
char **sila_completion( char *text, int start, int end )
{
char **matches;
matches = (char **)NULL;
/* If this word is at the start of the line, then it is a command
to complete. Otherwise it is the name of a file in the current
directory. */
if (start == 0)
matches = rl_completion_matches (text, command_generator);
return (matches);
}
/*
Tell the GNU Readline library how to complete. We want to try to complete
on command names if this is the first word in the line, or on filenames
if not.
*/
void initialize_readline()
{
/* Allow conditional parsing of the ~/.inputrc file. */
rl_readline_name = "sila";
/* Tell the completer that we want a crack first. */
rl_attempted_completion_function = (rl_completion_func_t *)sila_completion;
}
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