Export of internal Abseil changes.

--
70f43a482d7d4ae4a255f17ca02b0106653dd600 by Shaindel Schwartz <shaindel@google.com>:

Internal change

PiperOrigin-RevId: 201571193

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93e6e9c2e683158be49d9dd1f5cb1a91d0c0f556 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 201567108

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fbd8ee94fbe9f2448e5adf5e88706f9c8216048f by Juemin Yang <jueminyang@google.com>:

str_format release

PiperOrigin-RevId: 201565129

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387faa301555a8a888c4429df52734aa806dca46 by Abseil Team <absl-team@google.com>:

Adds a defaulted allocator parameter to the size_type constructor of InlinedVector

PiperOrigin-RevId: 201558711

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39b15ea2c68d7129d70cbde7e71af900032595ec by Matt Calabrese <calabrese@google.com>:

Update the variant implementation to eliminate unnecessary checking on alternative access when the index is known or required to be correct.

PiperOrigin-RevId: 201529535

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adab77f1f7bb363aa534297f22aae2b0f08889ea by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 201458388

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a701dc0ba62e3cadf0de14203415b91df4ee8151 by Greg Falcon <gfalcon@google.com>:

Internal cleanup

PiperOrigin-RevId: 201394836

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8a7191410b8f440fdfa27f722ff05e451502ab61 by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 201369269
GitOrigin-RevId: 70f43a482d7d4ae4a255f17ca02b0106653dd600
Change-Id: I8ab073b30b4e27405a3b6da2c826bb4f3f0b9af6

absl/strings/CMakeLists.txt

@@ -81,6 +81,58 @@ absl_library(
     strings
 )
 
+# add str_format library
+absl_library(
+  TARGET
+    absl_str_format
+  SOURCES
+    "str_format.h"
+  PUBLIC_LIBRARIES
+    str_format_internal
+  EXPORT_NAME
+    str_format
+)
+
+# str_format_internal
+ absl_library(
+  TARGET
+    str_format_internal
+  SOURCES
+    "internal/str_format/arg.cc"
+    "internal/str_format/bind.cc"
+    "internal/str_format/extension.cc"
+    "internal/str_format/float_conversion.cc"
+    "internal/str_format/output.cc"
+    "internal/str_format/parser.cc"
+    "internal/str_format/arg.h"
+    "internal/str_format/bind.h"
+    "internal/str_format/checker.h"
+    "internal/str_format/extension.h"
+    "internal/str_format/float_conversion.h"
+    "internal/str_format/output.h"
+    "internal/str_format/parser.h"
+  PUBLIC_LIBRARIES
+    str_format_extension_internal
+    absl::strings
+    absl::base
+    absl::numeric
+    absl::container
+    absl::span
+)
+
+# str_format_extension_internal
+absl_library(
+  TARGET
+  str_format_extension_internal
+  SOURCES
+    "internal/str_format/extension.cc"
+    "internal/str_format/extension.h"
+    "internal/str_format/output.cc"
+    "internal/str_format/output.h"
+  PUBLIC_LIBRARIES
+    absl::base
+    absl::strings
+)
 
 #
 ## TESTS
@@ -347,3 +399,68 @@ absl_test(
   PUBLIC_LIBRARIES
     ${CHARCONV_BIGINT_TEST_PUBLIC_LIBRARIES}
 )
+# test str_format_test
+absl_test(
+  TARGET
+    str_format_test
+  SOURCES
+    "str_format_test.cc"
+  PUBLIC_LIBRARIES
+    absl::base
+    absl::str_format
+    absl::strings
+)
+
+# test str_format_bind_test
+absl_test(
+  TARGET
+    str_format_bind_test
+  SOURCES
+    "internal/str_format/bind_test.cc"
+  PUBLIC_LIBRARIES
+    str_format_internal
+)
+
+# test str_format_checker_test
+absl_test(
+  TARGET
+    str_format_checker_test
+  SOURCES
+    "internal/str_format/checker_test.cc"
+  PUBLIC_LIBRARIES
+    absl::str_format
+)
+
+# test str_format_convert_test
+absl_test(
+  TARGET
+    str_format_convert_test
+  SOURCES
+    "internal/str_format/convert_test.cc"
+  PUBLIC_LIBRARIES
+    str_format_internal
+    absl::numeric
+)
+
+# test str_format_output_test
+absl_test(
+  TARGET
+    str_format_output_test
+  SOURCES
+    "internal/str_format/output_test.cc"
+  PUBLIC_LIBRARIES
+    str_format_extension_internal
+)
+
+# test str_format_parser_test
+absl_test(
+  TARGET
+    str_format_parser_test
+  SOURCES
+    "internal/str_format/parser_test.cc"
+  PUBLIC_LIBRARIES
+    str_format_internal
+    absl::base
+)
+
+