gecko-dev/xpcom/glue/nsCRTGlue.cpp

369 строки
8.1 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCRTGlue.h"
#include "nsXPCOM.h"
#include "nsDebug.h"
#include "prtime.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef XP_WIN
#include <io.h>
#include <windows.h>
#endif
#ifdef ANDROID
#include <android/log.h>
#endif
const char*
NS_strspnp(const char *delims, const char *str)
{
const char *d;
do {
for (d = delims; *d != '\0'; ++d) {
if (*str == *d) {
++str;
break;
}
}
} while (*d);
return str;
}
char*
NS_strtok(const char *delims, char **str)
{
if (!*str)
return nullptr;
char *ret = (char*) NS_strspnp(delims, *str);
if (!*ret) {
*str = ret;
return nullptr;
}
char *i = ret;
do {
for (const char *d = delims; *d != '\0'; ++d) {
if (*i == *d) {
*i = '\0';
*str = ++i;
return ret;
}
}
++i;
} while (*i);
*str = nullptr;
return ret;
}
uint32_t
NS_strlen(const char16_t *aString)
{
const char16_t *end;
for (end = aString; *end; ++end) {
// empty loop
}
return end - aString;
}
int
NS_strcmp(const char16_t *a, const char16_t *b)
{
while (*b) {
int r = *a - *b;
if (r)
return r;
++a;
++b;
}
return *a != '\0';
}
char16_t*
NS_strdup(const char16_t *aString)
{
uint32_t len = NS_strlen(aString);
return NS_strndup(aString, len);
}
char16_t*
NS_strndup(const char16_t *aString, uint32_t aLen)
{
char16_t *newBuf = (char16_t*) NS_Alloc((aLen + 1) * sizeof(char16_t));
if (newBuf) {
memcpy(newBuf, aString, aLen * sizeof(char16_t));
newBuf[aLen] = '\0';
}
return newBuf;
}
char*
NS_strdup(const char *aString)
{
uint32_t len = strlen(aString);
char *str = (char*) NS_Alloc(len + 1);
if (str) {
memcpy(str, aString, len);
str[len] = '\0';
}
return str;
}
// This table maps uppercase characters to lower case characters;
// characters that are neither upper nor lower case are unaffected.
const unsigned char nsLowerUpperUtils::kUpper2Lower[256] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64,
// upper band mapped to lower [A-Z] => [a-z]
97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,
91, 92, 93, 94, 95,
96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
const unsigned char nsLowerUpperUtils::kLower2Upper[256] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96,
// lower band mapped to upper [a-z] => [A-Z]
65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
bool NS_IsUpper(char aChar)
{
return aChar != (char)nsLowerUpperUtils::kUpper2Lower[(unsigned char)aChar];
}
bool NS_IsLower(char aChar)
{
return aChar != (char)nsLowerUpperUtils::kLower2Upper[(unsigned char)aChar];
}
bool NS_IsAscii(char16_t aChar)
{
return (0x0080 > aChar);
}
bool NS_IsAscii(const char16_t *aString)
{
while(*aString) {
if( 0x0080 <= *aString)
return false;
aString++;
}
return true;
}
bool NS_IsAscii(const char *aString)
{
while(*aString) {
if( 0x80 & *aString)
return false;
aString++;
}
return true;
}
bool NS_IsAscii(const char* aString, uint32_t aLength)
{
const char* end = aString + aLength;
while (aString < end) {
if (0x80 & *aString)
return false;
++aString;
}
return true;
}
bool NS_IsAsciiAlpha(char16_t aChar)
{
return ((aChar >= 'A') && (aChar <= 'Z')) ||
((aChar >= 'a') && (aChar <= 'z'));
}
bool NS_IsAsciiWhitespace(char16_t aChar)
{
return aChar == ' ' ||
aChar == '\r' ||
aChar == '\n' ||
aChar == '\t';
}
bool NS_IsAsciiDigit(char16_t aChar)
{
return aChar >= '0' && aChar <= '9';
}
#ifndef XPCOM_GLUE_AVOID_NSPR
#define TABLE_SIZE 36
static const char table[] = {
'a','b','c','d','e','f','g','h','i','j',
'k','l','m','n','o','p','q','r','s','t',
'u','v','w','x','y','z','0','1','2','3',
'4','5','6','7','8','9'
};
void NS_MakeRandomString(char *aBuf, int32_t aBufLen)
{
// turn PR_Now() into milliseconds since epoch
// and salt rand with that.
static unsigned int seed = 0;
if (seed == 0) {
double fpTime = double(PR_Now());
seed = (unsigned int)(fpTime * 1e-6 + 0.5); // use 1e-6, granularity of PR_Now() on the mac is seconds
srand(seed);
}
int32_t i;
for (i=0;i<aBufLen;i++) {
*aBuf++ = table[rand()%TABLE_SIZE];
}
*aBuf = 0;
}
#endif
static StderrCallback sStderrCallback = nullptr;
void
set_stderr_callback(StderrCallback aCallback)
{
sStderrCallback = aCallback;
}
#ifdef HAVE_VA_COPY
#define VARARGS_ASSIGN(foo, bar) VA_COPY(foo,bar)
#elif defined(HAVE_VA_LIST_AS_ARRAY)
#define VARARGS_ASSIGN(foo, bar) foo[0] = bar[0]
#else
#define VARARGS_ASSIGN(foo, bar) (foo) = (bar)
#endif
#if defined(XP_WIN)
void
vprintf_stderr(const char *fmt, va_list args)
{
if (sStderrCallback) {
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
sStderrCallback(fmt, args);
va_end(argsCpy);
}
if (IsDebuggerPresent()) {
char buf[2048];
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
vsnprintf(buf, sizeof(buf), fmt, argsCpy);
buf[sizeof(buf) - 1] = '\0';
va_end(argsCpy);
OutputDebugStringA(buf);
}
FILE *fp = _fdopen(_dup(2), "a");
if (!fp)
return;
vfprintf(fp, fmt, args);
fclose(fp);
}
#elif defined(ANDROID)
void
vprintf_stderr(const char *fmt, va_list args)
{
if (sStderrCallback) {
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
sStderrCallback(fmt, args);
va_end(argsCpy);
}
__android_log_vprint(ANDROID_LOG_INFO, "Gecko", fmt, args);
}
#else
void
vprintf_stderr(const char *fmt, va_list args)
{
if (sStderrCallback) {
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, args);
sStderrCallback(fmt, args);
va_end(argsCpy);
}
vfprintf(stderr, fmt, args);
}
#endif
void
printf_stderr(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vprintf_stderr(fmt, args);
va_end(args);
}
void
fprintf_stderr(FILE* aFile, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
if (aFile == stderr) {
vprintf_stderr(fmt, args);
} else {
vfprintf(aFile, fmt, args);
}
va_end(args);
}