diff --git a/absl/strings/internal/str_format/arg.h b/absl/strings/internal/str_format/arg.h
index b9dda909..a56ca301 100644
--- a/absl/strings/internal/str_format/arg.h
+++ b/absl/strings/internal/str_format/arg.h
@@ -110,8 +110,8 @@ constexpr FormatConversionCharSet ExtractCharSet(ArgConvertResult<C>) {
return C;
}
-using StringConvertResult =
- ArgConvertResult<FormatConversionCharSetInternal::s>;
+using StringConvertResult = ArgConvertResult<FormatConversionCharSetUnion(
+ FormatConversionCharSetInternal::s, FormatConversionCharSetInternal::v)>;
ArgConvertResult<FormatConversionCharSetInternal::p> FormatConvertImpl(
VoidPtr v, FormatConversionSpecImpl conv, FormatSinkImpl* sink);
diff --git a/absl/strings/internal/str_format/bind.h b/absl/strings/internal/str_format/bind.h
index 80f29654..b73c5028 100644
--- a/absl/strings/internal/str_format/bind.h
+++ b/absl/strings/internal/str_format/bind.h
@@ -235,9 +235,10 @@ class StreamedWrapper {
private:
template <typename S>
- friend ArgConvertResult<FormatConversionCharSetInternal::s> FormatConvertImpl(
- const StreamedWrapper<S>& v, FormatConversionSpecImpl conv,
- FormatSinkImpl* out);
+ friend ArgConvertResult<FormatConversionCharSetUnion(
+ FormatConversionCharSetInternal::s, FormatConversionCharSetInternal::v)>
+ FormatConvertImpl(const StreamedWrapper<S>& v, FormatConversionSpecImpl conv,
+ FormatSinkImpl* out);
const T& v_;
};
diff --git a/absl/strings/internal/str_format/checker_test.cc b/absl/strings/internal/str_format/checker_test.cc
index 7c70f47d..b186e7d8 100644
--- a/absl/strings/internal/str_format/checker_test.cc
+++ b/absl/strings/internal/str_format/checker_test.cc
@@ -39,7 +39,7 @@ std::string ConvToString(FormatConversionCharSet conv) {
TEST(StrFormatChecker, ArgumentToConv) {
FormatConversionCharSet conv = ArgumentToConv<std::string>();
- EXPECT_EQ(ConvToString(conv), "s");
+ EXPECT_EQ(ConvToString(conv), "sv");
conv = ArgumentToConv<const char*>();
EXPECT_EQ(ConvToString(conv), "sp");
diff --git a/absl/strings/internal/str_format/extension.h b/absl/strings/internal/str_format/extension.h
index 55e8ac88..f8d98bf7 100644
--- a/absl/strings/internal/str_format/extension.h
+++ b/absl/strings/internal/str_format/extension.h
@@ -169,7 +169,7 @@ inline std::ostream& operator<<(std::ostream& os, Flags v) {
X_VAL(f) X_SEP X_VAL(F) X_SEP X_VAL(e) X_SEP X_VAL(E) X_SEP \
X_VAL(g) X_SEP X_VAL(G) X_SEP X_VAL(a) X_SEP X_VAL(A) X_SEP \
/* misc */ \
- X_VAL(n) X_SEP X_VAL(p)
+ X_VAL(n) X_SEP X_VAL(p) X_SEP X_VAL(v)
// clang-format on
// This type should not be referenced, it exists only to provide labels
@@ -191,7 +191,7 @@ struct FormatConversionCharInternal {
c, s, // text
d, i, o, u, x, X, // int
f, F, e, E, g, G, a, A, // float
- n, p, // misc
+ n, p, v, // misc
kNone
};
// clang-format on
diff --git a/absl/strings/internal/str_format/parser.cc b/absl/strings/internal/str_format/parser.cc
index 2c9c07da..3d987334 100644
--- a/absl/strings/internal/str_format/parser.cc
+++ b/absl/strings/internal/str_format/parser.cc
@@ -56,7 +56,7 @@ ABSL_CONST_INIT const ConvTag kTags[256] = {
CC::X, {}, {}, {}, {}, {}, {}, {}, // XYZ[\]^_
{}, CC::a, {}, CC::c, CC::d, CC::e, CC::f, CC::g, // `abcdefg
LM::h, CC::i, LM::j, {}, LM::l, {}, CC::n, CC::o, // hijklmno
- CC::p, LM::q, {}, CC::s, LM::t, CC::u, {}, {}, // pqrstuvw
+ CC::p, LM::q, {}, CC::s, LM::t, CC::u, CC::v, {}, // pqrstuvw
CC::x, {}, LM::z, {}, {}, {}, {}, {}, // xyz{|}!
{}, {}, {}, {}, {}, {}, {}, {}, // 80-87
{}, {}, {}, {}, {}, {}, {}, {}, // 88-8f
diff --git a/absl/strings/str_format.h b/absl/strings/str_format.h
index 4b05c70c..e6537ea0 100644
--- a/absl/strings/str_format.h
+++ b/absl/strings/str_format.h
@@ -637,7 +637,7 @@ enum class FormatConversionChar : uint8_t {
c, s, // text
d, i, o, u, x, X, // int
f, F, e, E, g, G, a, A, // float
- n, p // misc
+ n, p, v // misc
};
// clang-format on
@@ -757,6 +757,7 @@ enum class FormatConversionCharSet : uint64_t {
// misc
n = str_format_internal::FormatConversionCharToConvInt('n'),
p = str_format_internal::FormatConversionCharToConvInt('p'),
+ v = str_format_internal::FormatConversionCharToConvInt('v'),
// Used for width/precision '*' specification.
kStar = static_cast<uint64_t>(
diff --git a/absl/strings/str_format_test.cc b/absl/strings/str_format_test.cc
index 804e6c22..7bffbb7a 100644
--- a/absl/strings/str_format_test.cc
+++ b/absl/strings/str_format_test.cc
@@ -84,6 +84,11 @@ TEST_F(FormatEntryPointTest, StringFormat) {
EXPECT_EQ("=123=", StrFormat(view, 123));
}
+TEST_F(FormatEntryPointTest, StringFormatV) {
+ std::string hello = "hello";
+ EXPECT_EQ("hello", StrFormat("%v", hello));
+}
+
TEST_F(FormatEntryPointTest, AppendFormat) {
std::string s;
std::string& r = StrAppendFormat(&s, "%d", 123);
@@ -165,6 +170,21 @@ TEST_F(FormatEntryPointTest, FormatCountCaptureExample) {
s);
}
+TEST_F(FormatEntryPointTest, FormatCountCaptureExampleWithV) {
+ int n;
+ std::string s;
+ std::string a1 = "(1,1)";
+ std::string a2 = "(1,2)";
+ std::string a3 = "(2,2)";
+ StrAppendFormat(&s, "%v: %n%v\n", a1, FormatCountCapture(&n), a2);
+ StrAppendFormat(&s, "%*s%v\n", n, "", a3);
+ EXPECT_EQ(7, n);
+ EXPECT_EQ(
+ "(1,1): (1,2)\n"
+ " (2,2)\n",
+ s);
+}
+
TEST_F(FormatEntryPointTest, Stream) {
const std::string formats[] = {
"",
@@ -191,6 +211,26 @@ TEST_F(FormatEntryPointTest, Stream) {
}
}
+TEST_F(FormatEntryPointTest, StreamWithV) {
+ const std::string format = "%d %u %c %v %f %g";
+
+ const std::string format_for_buf = "%d %u %c %s %f %g";
+
+ std::string buf(4096, '\0');
+ const auto parsed =
+ ParsedFormat<'d', 'u', 'c', 'v', 'f', 'g'>::NewAllowIgnored(format);
+ std::ostringstream oss;
+ oss << StreamFormat(*parsed, 123, 3, 49,
+ absl::string_view("multistreaming!!!"), 1.01, 1.01);
+ int fmt_result =
+ snprintf(&*buf.begin(), buf.size(), format_for_buf.c_str(), //
+ 123, 3, 49, "multistreaming!!!", 1.01, 1.01);
+ ASSERT_TRUE(oss) << format;
+ ASSERT_TRUE(fmt_result >= 0 && static_cast<size_t>(fmt_result) < buf.size())
+ << fmt_result;
+ EXPECT_EQ(buf.c_str(), oss.str());
+}
+
TEST_F(FormatEntryPointTest, StreamOk) {
std::ostringstream oss;
oss << StreamFormat("hello %d", 123);
@@ -249,6 +289,14 @@ TEST_F(FormatEntryPointTest, FormatStreamed) {
EXPECT_EQ("123", StrFormat("%s", FormatStreamed(StreamFormat("%d", 123))));
}
+TEST_F(FormatEntryPointTest, FormatStreamedWithV) {
+ EXPECT_EQ("123", StrFormat("%v", FormatStreamed(123)));
+ EXPECT_EQ(" 123", StrFormat("%5v", FormatStreamed(123)));
+ EXPECT_EQ("123 ", StrFormat("%-5v", FormatStreamed(123)));
+ EXPECT_EQ("X", StrFormat("%v", FormatStreamed(streamed_test::X())));
+ EXPECT_EQ("123", StrFormat("%v", FormatStreamed(StreamFormat("%d", 123))));
+}
+
// Helper class that creates a temporary file and exposes a FILE* to it.
// It will close the file on destruction.
class TempFile {
@@ -284,6 +332,14 @@ TEST_F(FormatEntryPointTest, FPrintF) {
EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
}
+TEST_F(FormatEntryPointTest, FPrintFWithV) {
+ TempFile tmp;
+ int result =
+ FPrintF(tmp.file(), "STRING: %v NUMBER: %010d", std::string("ABC"), -19);
+ EXPECT_EQ(result, 30);
+ EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
+}
+
TEST_F(FormatEntryPointTest, FPrintFError) {
errno = 0;
int result = FPrintF(stdin, "ABC");
@@ -318,6 +374,23 @@ TEST_F(FormatEntryPointTest, PrintF) {
EXPECT_EQ(result, 30);
EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
}
+
+TEST_F(FormatEntryPointTest, PrintFWithV) {
+ int stdout_tmp = dup(STDOUT_FILENO);
+
+ TempFile tmp;
+ std::fflush(stdout);
+ dup2(fileno(tmp.file()), STDOUT_FILENO);
+
+ int result = PrintF("STRING: %v NUMBER: %010d", std::string("ABC"), -19);
+
+ std::fflush(stdout);
+ dup2(stdout_tmp, STDOUT_FILENO);
+ close(stdout_tmp);
+
+ EXPECT_EQ(result, 30);
+ EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019");
+}
#endif // __GLIBC__
TEST_F(FormatEntryPointTest, SNPrintF) {
@@ -347,9 +420,41 @@ TEST_F(FormatEntryPointTest, SNPrintF) {
EXPECT_EQ(result, 37);
}
+TEST_F(FormatEntryPointTest, SNPrintFWithV) {
+ char buffer[16];
+ int result =
+ SNPrintF(buffer, sizeof(buffer), "STRING: %v", std::string("ABC"));
+ EXPECT_EQ(result, 11);
+ EXPECT_EQ(std::string(buffer), "STRING: ABC");
+
+ result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456);
+ EXPECT_EQ(result, 14);
+ EXPECT_EQ(std::string(buffer), "NUMBER: 123456");
+
+ result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 1234567);
+ EXPECT_EQ(result, 15);
+ EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
+
+ result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 12345678);
+ EXPECT_EQ(result, 16);
+ EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
+
+ result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456789);
+ EXPECT_EQ(result, 17);
+ EXPECT_EQ(std::string(buffer), "NUMBER: 1234567");
+
+ std::string size = "size";
+
+ result = SNPrintF(nullptr, 0, "Just checking the %v of the output.", size);
+ EXPECT_EQ(result, 37);
+}
+
TEST(StrFormat, BehavesAsDocumented) {
std::string s = absl::StrFormat("%s, %d!", "Hello", 123);
EXPECT_EQ("Hello, 123!", s);
+ std::string hello = "Hello";
+ std::string s2 = absl::StrFormat("%v, %d!", hello, 123);
+ EXPECT_EQ("Hello, 123!", s2);
// The format of a replacement is
// '%'[position][flags][width['.'precision]][length_modifier][format]
EXPECT_EQ(absl::StrFormat("%1$+3.2Lf", 1.1), "+1.10");
@@ -364,9 +469,13 @@ TEST(StrFormat, BehavesAsDocumented) {
// "s" - string Eg: "C" -> "C", std::string("C++") -> "C++"
// Formats std::string, char*, string_view, and Cord.
EXPECT_EQ(StrFormat("%s", "C"), "C");
+ EXPECT_EQ(StrFormat("%v", std::string("C")), "C");
EXPECT_EQ(StrFormat("%s", std::string("C++")), "C++");
+ EXPECT_EQ(StrFormat("%v", std::string("C++")), "C++");
EXPECT_EQ(StrFormat("%s", string_view("view")), "view");
+ EXPECT_EQ(StrFormat("%v", string_view("view")), "view");
EXPECT_EQ(StrFormat("%s", absl::Cord("cord")), "cord");
+ EXPECT_EQ(StrFormat("%v", absl::Cord("cord")), "cord");
// Integral Conversion
// These format integral types: char, int, long, uint64_t, etc.
EXPECT_EQ(StrFormat("%d", char{10}), "10");
@@ -490,6 +599,15 @@ TEST_F(ParsedFormatTest, SimpleChecked) {
SummarizeParsedFormat(ParsedFormat<'s', '*', 'd'>("%s %.*d")));
}
+TEST_F(ParsedFormatTest, SimpleCheckedWithV) {
+ EXPECT_EQ("[ABC]{d:1$d}[DEF]",
+ SummarizeParsedFormat(ParsedFormat<'d'>("ABC%dDEF")));
+ EXPECT_EQ("{v:1$v}[FFF]{d:2$d}[ZZZ]{f:3$f}",
+ SummarizeParsedFormat(ParsedFormat<'v', 'd', 'f'>("%vFFF%dZZZ%f")));
+ EXPECT_EQ("{v:1$v}[ ]{.*d:3$.2$*d}",
+ SummarizeParsedFormat(ParsedFormat<'v', '*', 'd'>("%v %.*d")));
+}
+
TEST_F(ParsedFormatTest, SimpleUncheckedCorrect) {
auto f = ParsedFormat<'d'>::New("ABC%dDEF");
ASSERT_TRUE(f);
@@ -520,6 +638,23 @@ TEST_F(ParsedFormatTest, SimpleUncheckedCorrect) {
SummarizeParsedFormat(*dollar));
}
+TEST_F(ParsedFormatTest, SimpleUncheckedCorrectWithV) {
+ auto f = ParsedFormat<'d'>::New("ABC%dDEF");
+ ASSERT_TRUE(f);
+ EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f));
+
+ std::string format = "%vFFF%dZZZ%f";
+ auto f2 = ParsedFormat<'v', 'd', 'f'>::New(format);
+
+ ASSERT_TRUE(f2);
+ EXPECT_EQ("{v:1$v}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2));
+
+ f2 = ParsedFormat<'v', 'd', 'f'>::New("%v %d %f");
+
+ ASSERT_TRUE(f2);
+ EXPECT_EQ("{v:1$v}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2));
+}
+
TEST_F(ParsedFormatTest, SimpleUncheckedIgnoredArgs) {
EXPECT_FALSE((ParsedFormat<'d', 's'>::New("ABC")));
EXPECT_FALSE((ParsedFormat<'d', 's'>::New("%dABC")));
@@ -549,6 +684,15 @@ TEST_F(ParsedFormatTest, SimpleUncheckedIncorrect) {
EXPECT_FALSE((ParsedFormat<'s', 'd', 'g'>::New(format)));
}
+TEST_F(ParsedFormatTest, SimpleUncheckedIncorrectWithV) {
+ EXPECT_FALSE(ParsedFormat<'d'>::New(""));
+
+ EXPECT_FALSE(ParsedFormat<'d'>::New("ABC%dDEF%d"));
+
+ std::string format = "%vFFF%dZZZ%f";
+ EXPECT_FALSE((ParsedFormat<'v', 'd', 'g'>::New(format)));
+}
+
#if defined(__cpp_nontype_template_parameter_auto)
template <auto T>
@@ -595,6 +739,23 @@ TEST_F(ParsedFormatTest, ExtendedTyping) {
's'>::New("%s%s");
ASSERT_TRUE(v4);
}
+
+TEST_F(ParsedFormatTest, ExtendedTypingWithV) {
+ EXPECT_FALSE(ParsedFormat<FormatConversionCharSet::d>::New(""));
+ ASSERT_TRUE(ParsedFormat<absl::FormatConversionCharSet::d>::New("%d"));
+ auto v1 = ParsedFormat<'d', absl::FormatConversionCharSet::v>::New("%d%v");
+ ASSERT_TRUE(v1);
+ auto v2 = ParsedFormat<absl::FormatConversionCharSet::d, 'v'>::New("%d%v");
+ ASSERT_TRUE(v2);
+ auto v3 = ParsedFormat<absl::FormatConversionCharSet::d |
+ absl::FormatConversionCharSet::v,
+ 'v'>::New("%d%v");
+ ASSERT_TRUE(v3);
+ auto v4 = ParsedFormat<absl::FormatConversionCharSet::d |
+ absl::FormatConversionCharSet::v,
+ 'v'>::New("%v%v");
+ ASSERT_TRUE(v4);
+}
#endif
TEST_F(ParsedFormatTest, UncheckedCorrect) {
@@ -638,6 +799,28 @@ TEST_F(ParsedFormatTest, UncheckedCorrect) {
SummarizeParsedFormat(*dollar));
}
+TEST_F(ParsedFormatTest, UncheckedCorrectWithV) {
+ auto f =
+ ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New("ABC%dDEF");
+ ASSERT_TRUE(f);
+ EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f));
+
+ std::string format = "%vFFF%dZZZ%f";
+ auto f2 = ExtendedParsedFormat<
+ absl::FormatConversionCharSet::v, absl::FormatConversionCharSet::d,
+ absl::FormatConversionCharSet::kFloating>::New(format);
+
+ ASSERT_TRUE(f2);
+ EXPECT_EQ("{v:1$v}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2));
+
+ f2 = ExtendedParsedFormat<
+ absl::FormatConversionCharSet::v, absl::FormatConversionCharSet::d,
+ absl::FormatConversionCharSet::kFloating>::New("%v %d %f");
+
+ ASSERT_TRUE(f2);
+ EXPECT_EQ("{v:1$v}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2));
+}
+
TEST_F(ParsedFormatTest, UncheckedIgnoredArgs) {
EXPECT_FALSE(
(ExtendedParsedFormat<absl::FormatConversionCharSet::d,
@@ -691,6 +874,19 @@ TEST_F(ParsedFormatTest, UncheckedIncorrect) {
absl::FormatConversionCharSet::g>::New(format)));
}
+TEST_F(ParsedFormatTest, UncheckedIncorrectWithV) {
+ EXPECT_FALSE(ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New(""));
+
+ EXPECT_FALSE(ExtendedParsedFormat<absl::FormatConversionCharSet::d>::New(
+ "ABC%dDEF%d"));
+
+ std::string format = "%vFFF%dZZZ%f";
+ EXPECT_FALSE(
+ (ExtendedParsedFormat<absl::FormatConversionCharSet::v,
+ absl::FormatConversionCharSet::d,
+ absl::FormatConversionCharSet::g>::New(format)));
+}
+
TEST_F(ParsedFormatTest, RegressionMixPositional) {
EXPECT_FALSE(
(ExtendedParsedFormat<absl::FormatConversionCharSet::d,
@@ -710,11 +906,22 @@ TEST_F(FormatWrapperTest, ConstexprStringFormat) {
EXPECT_EQ(WrappedFormat("%s there", "hello"), "hello there");
}
+TEST_F(FormatWrapperTest, ConstexprStringFormatWithV) {
+ std::string hello = "hello";
+ EXPECT_EQ(WrappedFormat("%v there", hello), "hello there");
+}
+
TEST_F(FormatWrapperTest, ParsedFormat) {
ParsedFormat<'s'> format("%s there");
EXPECT_EQ(WrappedFormat(format, "hello"), "hello there");
}
+TEST_F(FormatWrapperTest, ParsedFormatWithV) {
+ std::string hello = "hello";
+ ParsedFormat<'v'> format("%v there");
+ EXPECT_EQ(WrappedFormat(format, hello), "hello there");
+}
+
} // namespace
ABSL_NAMESPACE_END
} // namespace absl