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Export of internal Abseil changes

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--
00c451dc81be7fe05f982b08b4ea1edc2ca2c1c5 by Abseil Team <absl-team@google.com>:

remove a test that is currently broken on emscripten from running on
emscripten.

PiperOrigin-RevId: 262005667

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9df5f5acb65996bdb99900039a4f01a44811aa14 by CJ Johnson <johnsoncj@google.com>:

Adds a layer of macro-indirection to opening up namespace absl inside a macro. This helps avoid an issue identified with the LTS inline namespaces

PiperOrigin-RevId: 261990937

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5d40aa129cd77a1b853e5389aff7eacffe5c8204 by Gennadiy Rozental <rogeeff@google.com>:

Fix handling of new lines in flag help descriptions.

If there are explicit new lines in a flag help description string,
we respect it and format the usage message accordingly.

PiperOrigin-RevId: 261974244

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4997b5a2ddb983969059470a2d2bc2416b3d785e by CJ Johnson <johnsoncj@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 261955031
GitOrigin-RevId: 00c451dc81be7fe05f982b08b4ea1edc2ca2c1c5
Change-Id: I5a13bfb15bba0f7b6e49c0655c57c3addfeb1c72
This commit is contained in:
Abseil Team 2019-08-06 15:11:42 -07:00 • committed by CJ Johnson
parent 67222ffc4c
commit b49b8d16b6
5 changed files with 57 additions and 8 deletions
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18
absl/flags/internal/usage.cc
View file

@ -111,8 +111,16 @@ class FlagHelpPrettyPrinter {
std::vector<absl::string_view> tokens;
if (wrap_line) {
tokens = absl::StrSplit(str, absl::ByAnyChar(" \f\n\r\t\v"),
absl::SkipEmpty());
for (auto line : absl::StrSplit(str, absl::ByAnyChar("\n\r"))) {
if (!tokens.empty()) {
// Keep line separators in the input std::string.
tokens.push_back("\n");
}
for (auto token :
absl::StrSplit(line, absl::ByAnyChar(" \t"), absl::SkipEmpty())) {
tokens.push_back(token);
}
}
} else {
tokens.push_back(str);
}
@ -120,6 +128,12 @@ class FlagHelpPrettyPrinter {
for (auto token : tokens) {
bool new_line = (line_len_ == 0);
// Respect line separators in the input std::string.
if (token == "\n") {
EndLine();
continue;
}
// Write the token, ending the std::string first if necessary/possible.
if (!new_line && (line_len_ + token.size() >= max_line_len_)) {
EndLine();