[CommandInterpreter] Accept blanks after `all` or [0-9]+ for bt.

Previously "bt all    " would've failed as the regex didn't match
them.

Over the shoulder review by Jonas Devlieghere.

<rdar://problem/50824935>

llvm-svn: 360966

1 files changed, 4 insertions, 4 deletions

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index df583bc72dc..4a132622faa 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -758,12 +758,12 @@ void CommandInterpreter::LoadCommandDictionary() {
     // command if you wanted to backtrace three frames you would do "bt -c 3"
     // but the intention is to have this emulate the gdb "bt" command and so
     // now "bt 3" is the preferred form, in line with gdb.
-    if (bt_regex_cmd_up->AddRegexCommand("^([[:digit:]]+)$",
+    if (bt_regex_cmd_up->AddRegexCommand("^([[:digit:]]+)\\s*$",
                                          "thread backtrace -c %1") &&
-        bt_regex_cmd_up->AddRegexCommand("^-c ([[:digit:]]+)$",
+        bt_regex_cmd_up->AddRegexCommand("^-c ([[:digit:]]+)\\s*$",
                                          "thread backtrace -c %1") &&
-        bt_regex_cmd_up->AddRegexCommand("^all$", "thread backtrace all") &&
-        bt_regex_cmd_up->AddRegexCommand("^$", "thread backtrace")) {
+        bt_regex_cmd_up->AddRegexCommand("^all\\s*$", "thread backtrace all") &&
+        bt_regex_cmd_up->AddRegexCommand("^\\s*$", "thread backtrace")) {
       CommandObjectSP command_sp(bt_regex_cmd_up.release());
       m_command_dict[command_sp->GetCommandName()] = command_sp;
     }