diff options
Diffstat (limited to 'src/mongo/shell/linenoise.cpp')
| -rw-r--r-- | src/mongo/shell/linenoise.cpp | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/src/mongo/shell/linenoise.cpp b/src/mongo/shell/linenoise.cpp index bc3373def85..f4fdc340e79 100644 --- a/src/mongo/shell/linenoise.cpp +++ b/src/mongo/shell/linenoise.cpp @@ -385,12 +385,12 @@ public: } Utf32String* yank() { - return (size > 0) ? &theRing[indexToSlot[index]] : 0; + return (size > 0) ? &theRing[indexToSlot[index]] : nullptr; } Utf32String* yankPop() { if (size == 0) { - return 0; + return nullptr; } ++index; if (index == size) { @@ -467,8 +467,8 @@ static const int DELETE_KEY = 0x10E00000; static const int PAGE_UP_KEY = 0x11000000; static const int PAGE_DOWN_KEY = 0x11200000; -static const char* unsupported_term[] = {"dumb", "cons25", "emacs", NULL}; -static linenoiseCompletionCallback* completionCallback = NULL; +static const char* unsupported_term[] = {"dumb", "cons25", "emacs", nullptr}; +static linenoiseCompletionCallback* completionCallback = nullptr; #ifdef _WIN32 static HANDLE console_in, console_out; @@ -485,7 +485,7 @@ static int atexit_registered = 0; /* register atexit just 1 time */ static int historyMaxLen = LINENOISE_DEFAULT_HISTORY_MAX_LEN; static int historyLen = 0; static int historyIndex = 0; -static UChar8** history = NULL; +static UChar8** history = nullptr; // used to emulate Windows command prompt on down-arrow after a recall // we use -2 as our "not set" value because we add 1 to the previous index on down-arrow, @@ -497,7 +497,7 @@ static void linenoiseAtExit(void); static bool isUnsupportedTerm(void) { char* term = getenv("TERM"); - if (term == NULL) + if (term == nullptr) return false; for (int j = 0; unsupported_term[j]; ++j) if (!strcasecmp(term, unsupported_term[j])) { @@ -517,7 +517,7 @@ void linenoiseHistoryFree(void) { free(history[j]); historyLen = 0; free(history); - history = 0; + history = nullptr; } } @@ -1754,7 +1754,7 @@ int InputBuffer::incrementalHistorySearch(PromptBase& pi, int startChar) { bool keepLooping = true; bool useSearchedLine = true; bool searchAgain = false; - UChar32* activeHistoryLine = 0; + UChar32* activeHistoryLine = nullptr; while (keepLooping) { c = linenoiseReadChar(); c = cleanupCtrl(c); // convert CTRL + <char> into normal ctrl @@ -2639,12 +2639,12 @@ char* linenoise(const char* prompt) { PromptInfo pi(reinterpret_cast<const UChar8*>(prompt), getScreenColumns()); if (isUnsupportedTerm()) { if (write32(1, pi.promptText.get(), pi.promptChars) == -1) - return 0; + return nullptr; fflush(stdout); if (preloadedBufferContents.empty()) { unique_ptr<char[]> buf8(new char[LINENOISE_MAX_LINE]); - if (fgets(buf8.get(), LINENOISE_MAX_LINE, stdin) == NULL) { - return NULL; + if (fgets(buf8.get(), LINENOISE_MAX_LINE, stdin) == nullptr) { + return nullptr; } size_t len = strlen(buf8.get()); while (len && (buf8[len - 1] == '\n' || buf8[len - 1] == '\r')) { @@ -2659,7 +2659,7 @@ char* linenoise(const char* prompt) { } } else { if (enableRawMode() == -1) { - return NULL; + return nullptr; } InputBuffer ib(buf32, charWidths, LINENOISE_MAX_LINE); if (!preloadedBufferContents.empty()) { @@ -2670,7 +2670,7 @@ char* linenoise(const char* prompt) { disableRawMode(); printf("\n"); if (count == -1) { - return NULL; + return nullptr; } size_t bufferSize = sizeof(UChar32) * ib.length() + 1; unique_ptr<UChar8[]> buf8(new UChar8[bufferSize]); @@ -2679,8 +2679,8 @@ char* linenoise(const char* prompt) { } } else { // input not from a terminal, we should work with piped input, i.e. redirected stdin unique_ptr<char[]> buf8(new char[LINENOISE_MAX_LINE]); - if (fgets(buf8.get(), LINENOISE_MAX_LINE, stdin) == NULL) { - return NULL; + if (fgets(buf8.get(), LINENOISE_MAX_LINE, stdin) == nullptr) { + return nullptr; } // if fgets() gave us the newline, remove it @@ -2706,9 +2706,9 @@ int linenoiseHistoryAdd(const char* line) { if (historyMaxLen == 0) { return 0; } - if (history == NULL) { + if (history == nullptr) { history = reinterpret_cast<UChar8**>(malloc(sizeof(UChar8*) * historyMaxLen)); - if (history == NULL) { + if (history == nullptr) { return 0; } memset(history, 0, (sizeof(char*) * historyMaxLen)); @@ -2746,7 +2746,7 @@ int linenoiseHistorySetMaxLen(int len) { if (history) { int tocopy = historyLen; UChar8** newHistory = reinterpret_cast<UChar8**>(malloc(sizeof(UChar8*) * len)); - if (newHistory == NULL) { + if (newHistory == nullptr) { return 0; } if (len < tocopy) { @@ -2784,7 +2784,7 @@ mongo::Status linenoiseHistorySave(const char* filename) { return linenoiseFileError(mongo::ErrorCodes::FileOpenFailed, "open()", filename, ewd); } fp = fdopen(fd, "wt"); - if (fp == NULL) { + if (fp == nullptr) { const auto ewd = mongo::errnoWithDescription(); // We've already failed, so no need to report any close() failure. (void)close(fd); @@ -2820,7 +2820,7 @@ mongo::Status linenoiseHistorySave(const char* filename) { /* Load the history from the specified file. */ mongo::Status linenoiseHistoryLoad(const char* filename) { FILE* fp = fopen(filename, "rt"); - if (fp == NULL) { + if (fp == nullptr) { if (errno == ENOENT) { // Not having a history file isn't an error condition. // For example, it's always the case when the shell is run for the first time. @@ -2831,7 +2831,7 @@ mongo::Status linenoiseHistoryLoad(const char* filename) { } char buf[LINENOISE_MAX_LINE]; - while (fgets(buf, LINENOISE_MAX_LINE, fp) != NULL) { + while (fgets(buf, LINENOISE_MAX_LINE, fp) != nullptr) { char* p = strchr(buf, '\r'); if (!p) { p = strchr(buf, '\n'); |