1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmMathCommand.h"
#include "cmExprParserHelper.h"
#include "cmMakefile.h"
#include "cm_kwiml.h"
#include "cmake.h"
#include <stdio.h>
class cmExecutionStatus;
bool cmMathCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty()) {
this->SetError("must be called with at least one argument.");
return false;
}
const std::string& subCommand = args[0];
if (subCommand == "EXPR") {
return this->HandleExprCommand(args);
}
std::string e = "does not recognize sub-command " + subCommand;
this->SetError(e);
return false;
}
bool cmMathCommand::HandleExprCommand(std::vector<std::string> const& args)
{
if ((args.size() != 3) && (args.size() != 5)) {
this->SetError("EXPR called with incorrect arguments.");
return false;
}
enum class NumericFormat
{
UNINITIALIZED,
DECIMAL,
HEXADECIMAL,
};
const std::string& outputVariable = args[1];
const std::string& expression = args[2];
size_t argumentIndex = 3;
NumericFormat outputFormat = NumericFormat::UNINITIALIZED;
this->Makefile->AddDefinition(outputVariable, "ERROR");
if (argumentIndex < args.size()) {
const std::string messageHint = "sub-command EXPR ";
const std::string option = args[argumentIndex++];
if (option == "OUTPUT_FORMAT") {
if (argumentIndex < args.size()) {
const std::string argument = args[argumentIndex++];
if (argument == "DECIMAL") {
outputFormat = NumericFormat::DECIMAL;
} else if (argument == "HEXADECIMAL") {
outputFormat = NumericFormat::HEXADECIMAL;
} else {
std::string error = messageHint + "value \"" + argument +
"\" for option \"" + option + "\" is invalid.";
this->SetError(error);
return false;
}
} else {
std::string error =
messageHint + "missing argument for option \"" + option + "\".";
this->SetError(error);
return false;
}
} else {
std::string error =
messageHint + "option \"" + option + "\" is unknown.";
this->SetError(error);
return false;
}
}
if (outputFormat == NumericFormat::UNINITIALIZED) {
outputFormat = NumericFormat::DECIMAL;
}
cmExprParserHelper helper;
if (!helper.ParseString(expression.c_str(), 0)) {
this->SetError(helper.GetError());
return false;
}
char buffer[1024];
const char* fmt;
switch (outputFormat) {
case NumericFormat::HEXADECIMAL:
fmt = "0x%" KWIML_INT_PRIx64;
break;
case NumericFormat::DECIMAL:
CM_FALLTHROUGH;
default:
fmt = "%" KWIML_INT_PRId64;
break;
}
sprintf(buffer, fmt, helper.GetResult());
std::string const& w = helper.GetWarning();
if (!w.empty()) {
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w);
}
this->Makefile->AddDefinition(outputVariable, buffer);
return true;
}
|
