118 lines
2.3 KiB
C
118 lines
2.3 KiB
C
//#include "type.h"
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#include "zbar.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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//#include <iconv.h>
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#define FALSE_ERR ('Z' - 'A')
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#define DIFF_VALUE ('a' - 'A')
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int zbar_strcasecmp(char *s1, char *s2)
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{
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int ch1 = 0;
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int ch2 = 0;
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//参数判断
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if(NULL == s1 || NULL == s2){
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return FALSE_ERR;
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}
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//逐个字符查找比对，并记录差值
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do{
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if((ch1 = *((unsigned char *)s1++)) >= 'A' && ch1 <= 'Z'){
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*s1 += DIFF_VALUE;
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}
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if((ch2 = *((unsigned char *)s2++)) >= 'A' && ch2 <= 'Z'){
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*s2 += DIFF_VALUE;
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}
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}while(ch1 && ch1 == ch2);
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return ch1 - ch2;
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}
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iconv_t zbar_iconv_open(const char *tocode, const char *fromcode){
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int *cd;
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//
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cd = calloc(1, sizeof(16));
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cd[0] = 0;
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// printf("%s %s\r\n",__func__,fromcode);
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if( ! zbar_strcasecmp( (char *)fromcode, "ISO8859-1" ) ){
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cd[0] = 1;
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}
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if( ! zbar_strcasecmp( (char *)fromcode, "SJIS" ) ){
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cd[0] = 2;
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}
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if( ! zbar_strcasecmp( (char *)fromcode, "UTF-8" ) ){
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cd[0] = 3;
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}
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//printf("%s %d %d\r\n",__func__,__LINE__,cd[0]);
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return cd;
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}
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size_t zbar_iconv(unsigned char* _cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft){
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unsigned char *inb;
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unsigned char *outb;
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unsigned int inlen,outlen;
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unsigned int itk = 0;
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inb = (unsigned char *)*inbuf;
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outb = (unsigned char *)*outbuf;
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outlen = 0;
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inlen = *inbytesleft;
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//printf("%s %d %d\r\n",__func__,__LINE__,_cd[0]);
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if(_cd[0] == 1){
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for(itk = 0;itk < inlen;itk++){
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if(inb[itk] < 0x80){
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outb[outlen] = inb[itk];
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outlen++;
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}else{
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outb[outlen] = (inb[itk]>>6)|0xc0;
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outlen++;
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outb[outlen] = (inb[itk]&0x3f)|0x80;
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outlen++;
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}
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}
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*inbuf = *inbuf + inlen;
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*outbuf = *outbuf + outlen;
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*outbytesleft = *outbytesleft - outlen;
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*inbytesleft = 0;
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return 0;
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}else if(_cd[0] == 3){
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memcpy(outb,inb,inlen);
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//*outbytesleft = inlen;
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*inbuf = *inbuf + inlen;
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*outbuf = *outbuf + inlen;
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*inbytesleft = 0;
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*outbytesleft = *outbytesleft - inlen;
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return 0;
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}else{
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printf("no iconv\r\n");
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return -1;
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}
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//printf("%s %d\r\n",__func__,__LINE__);
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}
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int zbar_iconv_close(iconv_t _cd){
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//printf("%s %d\r\n",__func__,__LINE__);
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free(_cd);
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//printf("%s %d\r\n",__func__,__LINE__);
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return 0;
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}
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