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mirror of git://projects.qi-hardware.com/xburst-tools.git synced 2024-12-23 04:03:22 +02:00

Implemented tab completion

This commit is contained in:
Sergey Gridassov 2010-12-10 13:38:35 +03:00
parent a80ec957c6
commit 7c1d9c0144
3 changed files with 96 additions and 8 deletions

3
main.c
View File

@ -156,7 +156,7 @@ int main(int argc, char *argv[]) {
goto exit_ingenic;
}
if(config)
if(config) {
if(shell_source(shell, config) == -1) {
perror("shell_source");
@ -164,6 +164,7 @@ int main(int argc, char *argv[]) {
goto exit_shell;
}
}
if(cmd != NULL) {
if(shell_execute(shell, cmd) == -1) {

93
shell.c
View File

@ -103,7 +103,7 @@ int shell_run(shell_context_t *ctx, int argc, char *argv[]) {
int ret = shell_enumerate_commands(ctx, shell_run_function, &data);
if(ret != 0) {
if(ret == 0) {
debug(LEVEL_ERROR, "Bad command '%s'\n", argv[0]);
errno = EINVAL;
@ -127,12 +127,12 @@ int shell_execute(shell_context_t *ctx, const char *cmd) {
int state = STATE_WANTSTR;
int argc = 0;
char **argv = NULL;
int fret = -1;
int fret = 0;
do {
int noway = 0;
token = yylex(&scanner);
token = yylex(scanner);
if((token == TOK_SEPARATOR || token == TOK_COMMENT || token == 0)) {
if(argc > 0) {
@ -203,7 +203,7 @@ int shell_execute(shell_context_t *ctx, const char *cmd) {
free(ptr);
yylex_destroy(&scanner);
yylex_destroy(scanner);
return fret;
}
@ -249,6 +249,88 @@ int shell_source(shell_context_t *ctx, const char *filename) {
return 0;
}
#ifdef WITH_READLINE
static shell_context_t *completion_context;
static char **completion_matches;
static int completion_matches_count = 0;
static int shell_completion_filler(shell_context_t *ctx, const shell_command_t *cmd, void *arg) {
const char *part = arg;
size_t len = strlen(part), cmdlen = strlen(cmd->cmd);
if(cmdlen >= len && memcmp(part, cmd->cmd, len) == 0) {
int idx = completion_matches_count++;
completion_matches = realloc(completion_matches, sizeof(char **) * completion_matches_count);
completion_matches[idx] = strdup(cmd->cmd);
}
return 0;
}
static char *shell_completion(const char *partial, int state) {
static int completion_pass = 0, completion_matches_offset = 0;
if(state == 0) {
if(completion_matches) {
for(int i = 0; i < completion_matches_count; i++)
if(completion_matches[i])
free(completion_matches[i]);
free(completion_matches);
completion_matches = NULL;
completion_matches_count = 0;
}
completion_pass = 0;
char *tmp = rl_line_buffer;
while(isspace(*tmp)) tmp++;
int not_first = 0;
for(; *tmp; tmp++) {
for(const char *sep = rl_basic_word_break_characters; *sep; sep++) {
if(*tmp == *sep) {
not_first = 1;
break;
}
}
if(not_first)
break;
}
if(not_first) {
completion_pass = 1;
return rl_filename_completion_function(partial, state);
} else {
shell_enumerate_commands(completion_context, shell_completion_filler, (void *) partial);
completion_matches_offset = 0;
}
}
if(completion_pass) {
return rl_filename_completion_function(partial, state);
} else if(completion_matches_offset == completion_matches_count) {
return NULL;
} else {
char *val = completion_matches[completion_matches_offset];
completion_matches[completion_matches_offset++] = NULL;
return val;
}
}
#endif
void shell_interactive(shell_context_t *ctx) {
ctx->shell_exit = 0;
@ -267,9 +349,12 @@ void shell_interactive(shell_context_t *ctx) {
shell_execute(ctx, line);
}
#else
rl_completion_entry_function = shell_completion;
completion_context = ctx;
rl_set_signals();
rl_filename_quote_characters = "\" ";
while(!ctx->shell_exit) {
char *line = readline("jzboot> ");

View File

@ -136,9 +136,11 @@ static int builtin_redetect(shell_context_t *ctx, int argc, char *argv[]) {
static int builtin_set(shell_context_t *ctx, int argc, char *argv[]) {
if(argc == 1 && cfg_environ) {
for(int i = 0; cfg_environ[i] != NULL; i++)
printf("%s\n", cfg_environ[i]);
if(argc == 1) {
if(cfg_environ) {
for(int i = 0; cfg_environ[i] != NULL; i++)
printf("%s\n", cfg_environ[i]);
}
} else if(argc == 2) {
cfg_unsetenv(argv[1]);