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server/telnet: add variables auto-completion 

Change-Id: Ie690afad18065cde8d754c8af50dacd9f467c8e5
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6442
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Tarek BOCHKATI 2021-08-19 01:30:38 +01:00 committed by Oleksij Rempel
parent 259e400276
commit a098816a65
1 changed files with 37 additions and 16 deletions
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53
src/server/telnet_server.c
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@ -592,16 +592,30 @@ static void telnet_auto_complete(struct connection *connection)
LIST_HEAD(matches);
/* user command sequence, either at line beginning
* or we start over after these characters ';', '[', '{' */
/* - user command sequence, either at line beginning
* or we start over after these characters ';', '[', '{'
* - user variable sequence, start after the character '$'
* and do not contain white spaces */
bool is_variable_auto_completion = false;
bool have_spaces = false;
size_t seq_start = (t_con->line_cursor == 0) ? 0 : (t_con->line_cursor - 1);
while (seq_start > 0) {
while (1) {
char c = t_con->line[seq_start];
if (c == ';' || c == '[' || c == '{') {
seq_start++;
break;
} else if (c == ' ') {
have_spaces = true;
} else if (c == '$' && !have_spaces) {
is_variable_auto_completion = true;
seq_start++;
break;
}
if (seq_start == 0)
break;
seq_start--;
}
@ -631,7 +645,12 @@ static void telnet_auto_complete(struct connection *connection)
query[usr_cmd_len] = '\0';
/* filter commands */
char *query_cmd = alloc_printf("_telnet_autocomplete_helper {%s*}", query);
char *query_cmd;
if (is_variable_auto_completion)
query_cmd = alloc_printf("lsort [info vars {%s*}]", query);
else
query_cmd = alloc_printf("_telnet_autocomplete_helper {%s*}", query);
if (!query_cmd) {
LOG_ERROR("Out of memory");
@ -659,20 +678,22 @@ static void telnet_auto_complete(struct connection *connection)
/* validate the command */
bool ignore_cmd = false;
Jim_Cmd *jim_cmd = Jim_GetCommand(command_context->interp, elem, JIM_NONE);
if (!is_variable_auto_completion) {
Jim_Cmd *jim_cmd = Jim_GetCommand(command_context->interp, elem, JIM_NONE);
if (!jim_cmd) {
/* Why we are here? Let's ignore it! */
ignore_cmd = true;
} else if (jimcmd_is_oocd_command(jim_cmd)) {
struct command *cmd = jimcmd_privdata(jim_cmd);
if (!jim_cmd) {
/* Why we are here? Let's ignore it! */
ignore_cmd = true;
} else if (jimcmd_is_oocd_command(jim_cmd)) {
struct command *cmd = jimcmd_privdata(jim_cmd);
if (cmd && !cmd->handler && !cmd->jim_handler) {
/* Initial part of a multi-word command. Ignore it! */
ignore_cmd = true;
} else if (cmd && cmd->mode == COMMAND_CONFIG) {
/* Not executable after config phase. Ignore it! */
ignore_cmd = true;
if (cmd && !cmd->handler && !cmd->jim_handler) {
/* Initial part of a multi-word command. Ignore it! */
ignore_cmd = true;
} else if (cmd && cmd->mode == COMMAND_CONFIG) {
/* Not executable after config phase. Ignore it! */
ignore_cmd = true;
}
}
}