/*
|
* Copyright 2018 Rockchip Electronics Co. LTD
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*
|
* author: martin.cheng@rock-chips.com
|
* date: 20181126
|
*/
|
|
#ifndef SRC_RT_BASE_INCLUDE_RT_STRING_UTILS_H_
|
#define SRC_RT_BASE_INCLUDE_RT_STRING_UTILS_H_
|
|
#include "rt_header.h" // NOLINT
|
|
#include <stdio.h> // NOLINT
|
#include <stdarg.h> // NOLINT
|
#include <string> // NOLINT
|
#include <string.h> // NOLINT strerror/strstr/strcmp
|
|
#ifdef __cplusplus
|
extern "C" {
|
#endif
|
|
INT32 util_vsnprintf(char* buffer, size_t max_len, const char* format, va_list args);
|
INT32 util_snprintf(char* buffer, size_t max_len, const char* format, ...);
|
std::string util_vsprintf(const char* format, va_list args);
|
std::string util_sprintf(const char* format, ...);
|
std::string util_to_string(int num);
|
const char* util_to_char(const std::string buf);
|
char* util_stristr(const char* str1, const char* str2);
|
char* util_strsepstr(const char* str1, const char* str2, const char* delim);
|
|
INT32 util_strcasecmp(const char* str1, const char* str2);
|
INT32 util_strncasecmp(const char* str1, const char* str2, size_t n);
|
INT32 util_strtolower(char* dst, const char* src, INT32 length);
|
INT32 util_strtoupper(char* dst, const char* src, INT32 length);
|
|
INT32 util_strlcpy(char *dst, const char *src, INT32 size);
|
INT32 util_strlcat(char *dst, const char *src, INT32 size);
|
|
INT32 util_dump_str(INT32 fd, const char* args);
|
|
/**
|
* Locale-independent conversion of ASCII characters to uppercase.
|
*/
|
static inline const int rt_toupper(int c) {
|
if (c >= 'a' && c <= 'z')
|
c ^= 0x20;
|
return c;
|
}
|
|
/**
|
* Locale-independent conversion of ASCII characters to lowercase.
|
*/
|
static inline const int rt_tolower(int c) {
|
if (c >= 'A' && c <= 'Z')
|
c ^= 0x20;
|
return c;
|
}
|
|
#define RT_HASH_SEED 131
|
|
constexpr UINT64 func_hash_bkdr_constexpr(const char *str, UINT64 last_value = 0) {
|
return *str ? func_hash_bkdr_constexpr(str + 1, last_value * RT_HASH_SEED + *str) : last_value;
|
}
|
|
// BKDR Hash Function
|
static inline UINT64 func_hash_bkdr(const char *str) {
|
UINT32 seed = RT_HASH_SEED; // 31 131 1313 13131 131313 etc..
|
UINT64 hash = 0;
|
|
while (*str) {
|
hash = hash * RT_HASH_SEED + (*str);
|
*str++; // NOLINT
|
}
|
|
return hash;
|
}
|
|
#define RTSTRING_SWITCH(string) switch (func_hash_bkdr_constexpr(string))
|
#define RTSTRING_CASE(string) case func_hash_bkdr_constexpr(string)
|
|
#ifdef __cplusplus
|
}
|
#endif
|
|
#endif // SRC_RT_BASE_INCLUDE_RT_STRING_UTILS_H_
|
