1 //===-- OptionValueBoolean.cpp ------------------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "lldb/Interpreter/OptionValueBoolean.h"
11
12 // C Includes
13 // C++ Includes
14 // Other libraries and framework includes
15 // Project includes
16 #include "lldb/Core/Stream.h"
17 #include "lldb/Core/StringList.h"
18 #include "lldb/Interpreter/Args.h"
19
20 using namespace lldb;
21 using namespace lldb_private;
22
23 void
DumpValue(const ExecutionContext * exe_ctx,Stream & strm,uint32_t dump_mask)24 OptionValueBoolean::DumpValue (const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask)
25 {
26 if (dump_mask & eDumpOptionType)
27 strm.Printf ("(%s)", GetTypeAsCString ());
28 // if (dump_mask & eDumpOptionName)
29 // DumpQualifiedName (strm);
30 if (dump_mask & eDumpOptionValue)
31 {
32 if (dump_mask & eDumpOptionType)
33 strm.PutCString (" = ");
34 strm.PutCString (m_current_value ? "true" : "false");
35 }
36 }
37
38 Error
SetValueFromCString(const char * value_cstr,VarSetOperationType op)39 OptionValueBoolean::SetValueFromCString (const char *value_cstr,
40 VarSetOperationType op)
41 {
42 Error error;
43 switch (op)
44 {
45 case eVarSetOperationClear:
46 Clear();
47 break;
48
49 case eVarSetOperationReplace:
50 case eVarSetOperationAssign:
51 {
52 bool success = false;
53 bool value = Args::StringToBoolean(value_cstr, false, &success);
54 if (success)
55 {
56 m_value_was_set = true;
57 m_current_value = value;
58 }
59 else
60 {
61 if (value_cstr == NULL)
62 error.SetErrorString ("invalid boolean string value: NULL");
63 else if (value_cstr[0] == '\0')
64 error.SetErrorString ("invalid boolean string value <empty>");
65 else
66 error.SetErrorStringWithFormat ("invalid boolean string value: '%s'", value_cstr);
67 }
68 }
69 break;
70
71 case eVarSetOperationInsertBefore:
72 case eVarSetOperationInsertAfter:
73 case eVarSetOperationRemove:
74 case eVarSetOperationAppend:
75 case eVarSetOperationInvalid:
76 error = OptionValue::SetValueFromCString (value_cstr, op);
77 break;
78 }
79 return error;
80 }
81
82 lldb::OptionValueSP
DeepCopy() const83 OptionValueBoolean::DeepCopy () const
84 {
85 return OptionValueSP(new OptionValueBoolean(*this));
86 }
87
88 size_t
AutoComplete(CommandInterpreter & interpreter,const char * s,int match_start_point,int max_return_elements,bool & word_complete,StringList & matches)89 OptionValueBoolean::AutoComplete (CommandInterpreter &interpreter,
90 const char *s,
91 int match_start_point,
92 int max_return_elements,
93 bool &word_complete,
94 StringList &matches)
95 {
96 word_complete = false;
97 matches.Clear();
98 struct StringEntry {
99 const char *string;
100 const size_t length;
101 };
102 static const StringEntry g_autocomplete_entries[] =
103 {
104 { "true" , 4 },
105 { "false", 5 },
106 { "on" , 2 },
107 { "off" , 3 },
108 { "yes" , 3 },
109 { "no" , 2 },
110 { "1" , 1 },
111 { "0" , 1 },
112 };
113 const size_t k_num_autocomplete_entries = sizeof(g_autocomplete_entries)/sizeof(StringEntry);
114
115 if (s && s[0])
116 {
117 const size_t s_len = strlen(s);
118 for (size_t i=0; i<k_num_autocomplete_entries; ++i)
119 {
120 if (s_len <= g_autocomplete_entries[i].length)
121 if (::strncasecmp(s, g_autocomplete_entries[i].string, s_len) == 0)
122 matches.AppendString(g_autocomplete_entries[i].string);
123 }
124 }
125 else
126 {
127 // only suggest "true" or "false" by default
128 for (size_t i=0; i<2; ++i)
129 matches.AppendString(g_autocomplete_entries[i].string);
130 }
131 return matches.GetSize();
132 }
133
134
135
136