[Lldb-commits] [lldb] r176532 - <rdar://problem/13184855>

Greg Clayton gclayton at apple.com
Tue Mar 5 15:52:49 PST 2013


Author: gclayton
Date: Tue Mar  5 17:52:49 2013
New Revision: 176532

URL: http://llvm.org/viewvc/llvm-project?rev=176532&view=rev
Log:
<rdar://problem/13184855>

Spaces in "settings set" value strings no longer cause setting failures.


Modified:
    lldb/trunk/include/lldb/Interpreter/Args.h
    lldb/trunk/source/Commands/CommandObjectSettings.cpp
    lldb/trunk/source/Interpreter/Args.cpp

Modified: lldb/trunk/include/lldb/Interpreter/Args.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Interpreter/Args.h?rev=176532&r1=176531&r2=176532&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Interpreter/Args.h (original)
+++ lldb/trunk/include/lldb/Interpreter/Args.h Tue Mar  5 17:52:49 2013
@@ -342,6 +342,12 @@ public:
     void
     Clear ();
 
+    static const char *
+    StripSpaces (std::string &s,
+                 bool leading = true,
+                 bool trailing = true,
+                 bool return_null_if_empty = true);
+
     static int32_t
     StringToSInt32 (const char *s, int32_t fail_value = 0, int base = 0, bool *success_ptr = NULL);
 

Modified: lldb/trunk/source/Commands/CommandObjectSettings.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Commands/CommandObjectSettings.cpp?rev=176532&r1=176531&r2=176532&view=diff
==============================================================================
--- lldb/trunk/source/Commands/CommandObjectSettings.cpp (original)
+++ lldb/trunk/source/Commands/CommandObjectSettings.cpp Tue Mar  5 17:52:49 2013
@@ -23,14 +23,6 @@ using namespace lldb;
 using namespace lldb_private;
 #include "llvm/ADT/StringRef.h"
 
-static inline void StripLeadingSpaces(llvm::StringRef &s)
-{
-    const size_t non_space = s.find_first_not_of(' ');
-    if (non_space > 0)
-        s = s.substr(non_space);
-}
-
-
 //-------------------------------------------------------------------------
 // CommandObjectSettingsSet
 //-------------------------------------------------------------------------
@@ -248,11 +240,9 @@ protected:
         }
 
         // Split the raw command into var_name and value pair.
-        std::string var_name_string = var_name;
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
 
         Error error;
         if (m_options.m_global)
@@ -260,7 +250,7 @@ protected:
             error = m_interpreter.GetDebugger().SetPropertyValue (NULL,
                                                                   eVarSetOperationAssign,
                                                                   var_name,
-                                                                  var_value_string.c_str());
+                                                                  var_value_cstr);
         }
         
         if (error.Success())
@@ -268,7 +258,7 @@ protected:
             error = m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                   eVarSetOperationAssign,
                                                                   var_name,
-                                                                  var_value_string.c_str());
+                                                                  var_value_cstr);
         }
 
         if (error.Fail())
@@ -581,16 +571,14 @@ protected:
         }
         
         // Split the raw command into var_name and value pair.
-        std::string var_name_string = var_name;
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
         
         Error error (m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                    eVarSetOperationRemove,
                                                                    var_name,
-                                                                   var_value_string.c_str()));
+                                                                   var_value_cstr));
         if (error.Fail())
         {
             result.AppendError (error.AsCString());
@@ -697,7 +685,6 @@ protected:
 
         Args cmd_args(command);
         const char *var_name = cmd_args.GetArgumentAtIndex (0);
-        std::string var_name_string;
         if ((var_name == NULL) || (var_name[0] == '\0'))
         {
             result.AppendError ("'settings replace' command requires a valid variable name; No value supplied");
@@ -705,18 +692,16 @@ protected:
             return false;
         }
 
-        var_name_string = var_name;
 
         // Split the raw command into var_name, index_value, and value triple.
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
 
         Error error(m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                   eVarSetOperationReplace,
                                                                   var_name,
-                                                                  var_value_string.c_str()));
+                                                                  var_value_cstr));
         if (error.Fail())
         {
             result.AppendError (error.AsCString());
@@ -830,7 +815,6 @@ protected:
         }
 
         const char *var_name = cmd_args.GetArgumentAtIndex (0);
-        std::string var_name_string;
         if ((var_name == NULL) || (var_name[0] == '\0'))
         {
             result.AppendError ("'settings insert-before' command requires a valid variable name; No value supplied");
@@ -838,18 +822,15 @@ protected:
             return false;
         }
 
-        var_name_string = var_name;
-
         // Split the raw command into var_name, index_value, and value triple.
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
 
         Error error(m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                   eVarSetOperationInsertBefore,
                                                                   var_name,
-                                                                  var_value_string.c_str()));
+                                                                  var_value_cstr));
         if (error.Fail())
         {
             result.AppendError (error.AsCString());
@@ -958,7 +939,6 @@ protected:
         }
 
         const char *var_name = cmd_args.GetArgumentAtIndex (0);
-        std::string var_name_string;
         if ((var_name == NULL) || (var_name[0] == '\0'))
         {
             result.AppendError ("'settings insert-after' command requires a valid variable name; No value supplied");
@@ -966,18 +946,15 @@ protected:
             return false;
         }
 
-        var_name_string = var_name;
-
         // Split the raw command into var_name, index_value, and value triple.
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
 
         Error error(m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                   eVarSetOperationInsertAfter,
                                                                   var_name,
-                                                                  var_value_string.c_str()));
+                                                                  var_value_cstr));
         if (error.Fail())
         {
             result.AppendError (error.AsCString());
@@ -1075,7 +1052,6 @@ protected:
         }
 
         const char *var_name = cmd_args.GetArgumentAtIndex (0);
-        std::string var_name_string;
         if ((var_name == NULL) || (var_name[0] == '\0'))
         {
             result.AppendError ("'settings append' command requires a valid variable name; No value supplied");
@@ -1083,20 +1059,18 @@ protected:
             return false;
         }
 
-        var_name_string = var_name;
         // Do not perform cmd_args.Shift() since StringRef is manipulating the
         // raw character string later on.
 
         // Split the raw command into var_name and value pair.
         llvm::StringRef raw_str(command);
-        llvm::StringRef var_value_str = raw_str.split(var_name).second;
-        StripLeadingSpaces(var_value_str);
-        std::string var_value_string = var_value_str.str();
+        std::string var_value_string = raw_str.split(var_name).second.str();
+        const char *var_value_cstr = Args::StripSpaces(var_value_string, true, true, false);
 
         Error error(m_interpreter.GetDebugger().SetPropertyValue (&m_exe_ctx,
                                                                   eVarSetOperationAppend,
                                                                   var_name,
-                                                                  var_value_string.c_str()));
+                                                                  var_value_cstr));
         if (error.Fail())
         {
             result.AppendError (error.AsCString());

Modified: lldb/trunk/source/Interpreter/Args.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Interpreter/Args.cpp?rev=176532&r1=176531&r2=176532&view=diff
==============================================================================
--- lldb/trunk/source/Interpreter/Args.cpp (original)
+++ lldb/trunk/source/Interpreter/Args.cpp Tue Mar  5 17:52:49 2013
@@ -905,6 +905,33 @@ Args::StringToAddress (const ExecutionCo
     return fail_value;
 }
 
+const char *
+Args::StripSpaces (std::string &s, bool leading, bool trailing, bool return_null_if_empty)
+{
+    static const char *k_white_space = " \t\v";
+    if (!s.empty())
+    {
+        if (leading)
+        {
+            size_t pos = s.find_first_not_of (k_white_space);
+            if (pos == std::string::npos)
+                s.clear();
+            else if (pos > 0)
+                s.erase(0, pos);
+        }
+        
+        if (trailing)
+        {
+            size_t rpos = s.find_last_not_of(k_white_space);
+            if (rpos != std::string::npos && rpos + 1 < s.size())
+                s.erase(rpos + 1);
+        }
+    }
+    if (return_null_if_empty && s.empty())
+        return NULL;
+    return s.c_str();
+}
+
 bool
 Args::StringToBoolean (const char *s, bool fail_value, bool *success_ptr)
 {





More information about the lldb-commits mailing list