165 lines
4.2 KiB
C
165 lines
4.2 KiB
C
/**
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* Copyright (C) 2008 Happy Fish / YuQing
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*
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* FastDFS may be copied only under the terms of the GNU General
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* Public License V3, which may be found in the FastDFS source kit.
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* Please visit the FastDFS Home Page http://www.fastken.com/ for more detail.
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**/
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//char_converter.h
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#ifndef CHAR_CONVERTER_H
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#define CHAR_CONVERTER_H
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#include <syslog.h>
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#include <sys/time.h>
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#include "common_define.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FAST_MAX_CHAR_COUNT 256
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#define FAST_CHAR_OP_NONE 0
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#define FAST_CHAR_OP_ADD_BACKSLASH 1
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#define FAST_CHAR_OP_NO_BACKSLASH 2
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#define FAST_CHAR_MAKE_PAIR(pair, from, to) \
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pair.src = from; pair.dest = to
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typedef struct fast_char_pair
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{
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unsigned char src;
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unsigned char dest;
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} FastCharPair;
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typedef struct fast_char_target
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{
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unsigned char op;
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unsigned char dest;
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} FastCharTarget;
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typedef struct fast_char_converter
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{
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/*
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* char pairs count
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* */
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int count;
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/*
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* char table to convert
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* */
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FastCharTarget char_table[FAST_MAX_CHAR_COUNT];
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/*
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* char table to unescape
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* */
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FastCharTarget unescape_chars[FAST_MAX_CHAR_COUNT];
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} FastCharConverter;
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/**
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* char converter init function
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* parameters:
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* pCharConverter: the char converter
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* charPairs: the char pairs
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* count: the count of char pairs
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* op: the operator type
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* return: 0 for success, != 0 fail
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*/
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int char_converter_init_ex(FastCharConverter *pCharConverter,
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const FastCharPair *charPairs, const int count,
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const unsigned op);
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/**
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* char converter init function
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* parameters:
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* pCharConverter: the char converter
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* charPairs: the char pairs
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* count: the count of char pairs
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* return: 0 for success, != 0 fail
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*/
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static inline int char_converter_init(FastCharConverter *pCharConverter,
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const FastCharPair *charPairs, const int count)
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{
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return char_converter_init_ex(pCharConverter, charPairs, count,
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FAST_CHAR_OP_NO_BACKSLASH);
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}
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/**
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* standard space chars to convert
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* parameters:
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* pCharConverter: the char converter
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* dest_base: the dest base char
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* return: 0 for success, != 0 fail
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*/
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int std_space_char_converter_init(FastCharConverter *pCharConverter,
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const unsigned char dest_base);
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/**
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* standard space chars init to add backslash
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* parameters:
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* pCharConverter: the char converter
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* return: 0 for success, != 0 fail
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*/
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int std_spaces_add_backslash_converter_init(FastCharConverter *pCharConverter);
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/**
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* set char pair to converter
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* parameters:
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* pCharConverter: the char converter
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* src: the src char
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* dest: the dest char
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* return: none
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*/
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void char_converter_set_pair(FastCharConverter *pCharConverter,
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const unsigned char src, const unsigned char dest);
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/**
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* set char pair to converter
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* parameters:
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* pCharConverter: the char converter
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* src: the src char
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* op: the operator type
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* dest: the dest char
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* return: none
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*/
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void char_converter_set_pair_ex(FastCharConverter *pCharConverter,
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const unsigned char src, const unsigned op, const unsigned char dest);
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/**
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* char convert function
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* parameters:
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* pCharConverter: the char converter
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* input: the input to convert
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* input_len: the length of input
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* output: the input to convert
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* out_len: the length of output
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* out_size: output buff size
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* return: converted char count
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*/
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int fast_char_convert(FastCharConverter *pCharConverter,
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const char *input, const int input_len,
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char *output, int *out_len, const int out_size);
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#define fast_char_escape(pCharConverter, input, input_len, \
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output, out_len, out_size) \
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fast_char_convert(pCharConverter, input, input_len, \
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output, out_len, out_size)
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/**
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* char unescape function
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* parameters:
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* pCharConverter: the char converter
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* str: the string to unescape
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* len: the input string length and store the unscaped string length
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* return: converted char count
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*/
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int fast_char_unescape(FastCharConverter *pCharConverter, char *str, int *len);
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#ifdef __cplusplus
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}
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#endif
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#endif
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