Export of internal Abseil changes.

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714347c156cfe01575c1830a92bc6dea3030065b by Emma Christie <emmachristie@google.com>:

Release absl::EqualsIgnoreCase

PiperOrigin-RevId: 216243900

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688106e2b9d2924799d597682690851cfba87818 by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 216208373

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53638e4da238b230af0e56dc31b9fb790e708f36 by Emma Christie <emmachristie@google.com>:

Update StartsWithIgnoreCase(), EndsWithIgnoreCase(), and EqualsIgnoreCase() headers to say that these functions only consider ASCII case inputs.

PiperOrigin-RevId: 215930962
GitOrigin-RevId: 714347c156cfe01575c1830a92bc6dea3030065b
Change-Id: I7fb3506234185b1a961e0110c1f8302ffe7228fa
This commit is contained in:
Abseil Team 2018-10-08 13:53:59 -07:00 committed by CJ Johnson
parent e821380d69
commit 445998d7ac
7 changed files with 60 additions and 10 deletions

View file

@ -27,6 +27,13 @@ bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
}
} // namespace
bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2) {
return (piece1.size() == piece2.size() &&
0 == absl::strings_internal::memcasecmp(piece1.data(), piece2.data(),
piece1.size()));
// memcasecmp uses absl::ascii_tolower().
}
bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix) {
return (text.size() >= prefix.size()) &&
CaseEqual(text.substr(0, prefix.size()), prefix);

View file

@ -66,16 +66,22 @@ inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
);
}
// EqualsIgnoreCase()
//
// Returns whether given ASCII strings `piece1` and `piece2` are equal, ignoring
// case in the comparison.
bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2);
// StartsWithIgnoreCase()
//
// Returns whether a given string `text` starts with `starts_with`, ignoring
// case in the comparison.
// Returns whether a given ASCII string `text` starts with `starts_with`,
// ignoring case in the comparison.
bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix);
// EndsWithIgnoreCase()
//
// Returns whether a given string `text` ends with `ends_with`, ignoring case
// in the comparison.
// Returns whether a given ASCII string `text` ends with `ends_with`, ignoring
// case in the comparison.
bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix);
} // namespace absl

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@ -80,6 +80,17 @@ TEST(MatchTest, ContainsNull) {
EXPECT_FALSE(absl::StrContains(cs, sv2));
}
TEST(MatchTest, EqualsIgnoreCase) {
std::string text = "the";
absl::string_view data(text);
EXPECT_TRUE(absl::EqualsIgnoreCase(data, "The"));
EXPECT_TRUE(absl::EqualsIgnoreCase(data, "THE"));
EXPECT_TRUE(absl::EqualsIgnoreCase(data, "the"));
EXPECT_FALSE(absl::EqualsIgnoreCase(data, "Quick"));
EXPECT_FALSE(absl::EqualsIgnoreCase(data, "then"));
}
TEST(MatchTest, StartsWithIgnoreCase) {
EXPECT_TRUE(absl::StartsWithIgnoreCase("foo", "foo"));
EXPECT_TRUE(absl::StartsWithIgnoreCase("foo", "Fo"));

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@ -416,6 +416,12 @@ class civil_time {
return difference(T{}, lhs.f_, rhs.f_);
}
template <typename H>
friend H AbslHashValue(H h, civil_time a) {
return H::combine(std::move(h), a.f_.y, a.f_.m, a.f_.d,
a.f_.hh, a.f_.mm, a.f_.ss);
}
private:
// All instantiations of this template are allowed to call the following
// private constructor and access the private fields member.

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@ -224,6 +224,11 @@ class time_zone {
return !(lhs == rhs);
}
template <typename H>
friend H AbslHashValue(H h, time_zone tz) {
return H::combine(std::move(h), &tz.effective_impl());
}
class Impl;
private:

View file

@ -620,7 +620,7 @@ TEST(CivilTime, Relational) {
TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 1, 0),
civil_second(2014, 1, 1, 1, 1, 1));
// Tests the relational operators of two different CivilTime types.
// Tests the relational operators of two different civil-time types.
TEST_RELATIONAL(civil_day(2014, 1, 1), civil_minute(2014, 1, 1, 1, 1));
TEST_RELATIONAL(civil_day(2014, 1, 1), civil_month(2014, 2));

View file

@ -15,8 +15,8 @@
#include "time_zone_fixed.h"
#include <algorithm>
#include <cassert>
#include <chrono>
#include <cstdio>
#include <cstring>
#include <string>
@ -29,8 +29,15 @@ namespace {
// The prefix used for the internal names of fixed-offset zones.
const char kFixedOffsetPrefix[] = "Fixed/UTC";
const char kDigits[] = "0123456789";
char* Format02d(char* p, int v) {
*p++ = kDigits[(v / 10) % 10];
*p++ = kDigits[v % 10];
return p;
}
int Parse02d(const char* p) {
static const char kDigits[] = "0123456789";
if (const char* ap = std::strchr(kDigits, *p)) {
int v = static_cast<int>(ap - kDigits);
if (const char* bp = std::strchr(kDigits, *++p)) {
@ -95,9 +102,17 @@ std::string FixedOffsetToName(const seconds& offset) {
}
int hours = minutes / 60;
minutes %= 60;
char buf[sizeof(kFixedOffsetPrefix) + sizeof("-24:00:00")];
snprintf(buf, sizeof(buf), "%s%c%02d:%02d:%02d",
kFixedOffsetPrefix, sign, hours, minutes, seconds);
char buf[sizeof(kFixedOffsetPrefix) - 1 + sizeof("-24:00:00")];
std::strcpy(buf, kFixedOffsetPrefix);
char* ep = buf + sizeof(kFixedOffsetPrefix) - 1;
*ep++ = sign;
ep = Format02d(ep, hours);
*ep++ = ':';
ep = Format02d(ep, minutes);
*ep++ = ':';
ep = Format02d(ep, seconds);
*ep++ = '\0';
assert(ep == buf + sizeof(buf));
return buf;
}