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Changed the "help" command to be able to only show all commands starting with a certain string.

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This helps to reduce the flood of commands for those blue screen "users" :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13018 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2005-06-08 17:16:40 +00:00
parent a2b336134d
commit 78d6683c68
1 changed files with 22 additions and 9 deletions
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31
src/system/kernel/debug/debug.c
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@ -63,7 +63,7 @@ static char *args[MAX_ARGS] = { NULL, };
static debugger_command *
find_command(char *name)
find_command(char *name, bool partialMatch)
{
debugger_command *command;
int length;
@ -77,11 +77,13 @@ find_command(char *name)
// if it couldn't be found, search for a partial match
length = strlen(name);
if (partialMatch) {
length = strlen(name);
for (command = sCommands; command != NULL; command = command->next) {
if (strncmp(name, command->name, length) == 0)
return command;
for (command = sCommands; command != NULL; command = command->next) {
if (strncmp(name, command->name, length) == 0)
return command;
}
}
return NULL;
@ -263,7 +265,7 @@ kernel_debugger_loop(void)
sDebuggerOnCPU = smp_get_current_cpu();
if (argc > 0)
cmd = find_command(args[0]);
cmd = find_command(args[0], true);
if (cmd == NULL)
dprintf("unknown command, enter \"help\" to get a list of all supported commands\n");
@ -297,19 +299,30 @@ static int
cmd_help(int argc, char **argv)
{
debugger_command *command, *specified = NULL;
const char *start = NULL;
int32 startLength = 0;
if (argc > 1)
specified = find_command(argv[1]);
if (argc > 1) {
specified = find_command(argv[1], false);
if (specified == NULL) {
start = argv[1];
startLength = strlen(start);
}
}
if (specified != NULL) {
// only print out the help of the specified command (and all of its aliases)
dprintf("debugger command for \"%s\" and aliases:\n", specified->name);
} else
} else if (start != NULL)
dprintf("debugger commands starting with \"%s\":\n", start);
else
dprintf("debugger commands:\n");
for (command = sCommands; command != NULL; command = command->next) {
if (specified && command->func != specified->func)
continue;
if (start != NULL && strncmp(start, command->name, startLength))
continue;
dprintf(" %-20s\t\t%s\n", command->name, command->description ? command->description : "-");
}