ZSO-SPNFS_csv_coding.hpp File Reference

#include <string>
#include <cstdio>

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Functions
std::string	read_csv_string (int fd)
	reads string that is send in quotes '"..."x' from file (e.p.
std::string	make_csv_string (const std::string &str)
	make string in quotes '"..."x' from file (e.p.
std::string	make_csv_string (const char *str, int len)
	make string in quotes '"..."x' from file (e.p.
std::string	make_csv_string (long long l)
	make string in quotes '"..."x' from file (e.p.
ssize_t	write (int fd, const std::string &str)
	writes STL string to file

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Function Documentation

std::string make_csv_string

(

long long

l

)

make string in quotes '"..."x' from file (e.p.

tcp stream) encoded in csv style. All quote characters '"' in string are doubled (changed into '""') like in csv format. After last quote character there is additionall char different from '"' to avoid misunderstanding of doubled quotes.

Definition at line 87 of file ZSO-SPNFS_csv_coding.hpp.

                                      {
    char buf[100];
    sprintf(buf,"\"%lld\",",l);
    return std::string(buf);
};

std::string make_csv_string	(	const char *	str,
		int	len
	)

make string in quotes '"..."x' from file (e.p.

tcp stream) encoded in csv style. All quote characters '"' in string are doubled (changed into '""') like in csv format. After last quote character there is additionall char different from '"' to avoid misunderstanding of doubled quotes.

Definition at line 67 of file ZSO-SPNFS_csv_coding.hpp.

                                                   {
    //I know it's not best effective implementation, but simple and sure. So enough for prototype ;).
    std::string ret;
    int i;
    ret.append(1,' ');
    ret.append(1,'"');
    for(i=0;i<len;i++)
        if( str[i] !='"')
            ret.append(1,str[i]);
        else
            ret.append("\"\"");
    ret.append(1,'"');
    ret.append(1,',');
    return ret;
};

std::string make_csv_string

(

const std::string &

str

)

make string in quotes '"..."x' from file (e.p.

tcp stream) encoded in csv style. All quote characters '"' in string are doubled (changed into '""') like in csv format. After last quote character there is additionall char different from '"' to avoid misunderstanding of doubled quotes.

Definition at line 46 of file ZSO-SPNFS_csv_coding.hpp.

Referenced by encoded::encoded(), logining(), service_client(), spnfs_write(), zso_hook_chdir(), zso_hook_close(), zso_hook_dir(), zso_hook_exit(), zso_hook_mkdir(), zso_hook_open(), zso_hook_pos(), zso_hook_pwd(), zso_hook_read(), zso_hook_seek(), zso_hook_size(), zso_hook_touch(), zso_hook_trunc(), and zso_hook_write().

                                               {
    //I know it's not best effective implementation, but simple and sure. So enough for prototype ;).
    std::string ret;
    char ch;
    int i;
    ret.append(1,' ');
    ret.append(1,'"');
    for(i=0;i<str.size();++i)
        if( (ch=str[i]) !='"')
            ret.append(1,ch);
        else
            ret.append("\"\"");
    ret.append(1,'"');
    ret.append(1,',');
    return ret;
};

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std::string read_csv_string

(

int

fd

)

reads string that is send in quotes '"..."x' from file (e.p.

tcp stream) encoded in csv style. All quote characters '"' in string should be doubled (changed into '""') , the same as in csv format. After last quote character there must be at least one char different from '"' to avoid misunderstanding of double quotes '""'.
Begin "This is example ""encoded"" data", END .
There also can be a lot of data before beginning quote.

Definition at line 13 of file ZSO-SPNFS_csv_coding.hpp.

Referenced by getll(), getstr(), logining(), hooks_container::operator<<(), spnfs_connect(), zso_hook_chdir(), zso_hook_close(), zso_hook_dir(), zso_hook_mkdir(), zso_hook_open(), zso_hook_pos(), zso_hook_read(), zso_hook_seek(), zso_hook_size(), zso_hook_touch(), zso_hook_trunc(), and zso_hook_write().

                                 {
    char ch='x', prevch='x';
    std::string ret;
    int retint;
    while(ch!='"'){
        if((retint=read(fd,&ch,1))<=0){ fprintf(stderr,"read from socket. (Connection closed?)"); exit(EXIT_FAILURE); };
    };
    while(1){
        if((retint=read(fd,&ch,1))<=0){ fprintf(stderr,"read from socket. (Connection closed?)"); exit(EXIT_FAILURE); };
        //printf("%3d >(%c,%c) %s\n", retint, prevch, ch, ret.c_str());
        if(retint==1){
            if( prevch != '"' ){
                if(ch!='"') { 
                    ret.append(1,ch);
                } else prevch='"';
            } else {
                if(ch=='"'){
                    ret.append(1,'"');
                    prevch='x';
                } else break;
            };
        };
    };
#ifdef DEB
    printf("read_csv_string() -> %s\n", ret.c_str());
#endif
    return ret;
}; 

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ssize_t write	(	int	fd,
		const std::string &	str
	)			[inline]

writes STL string to file

Definition at line 94 of file ZSO-SPNFS_csv_coding.hpp.

Referenced by getll(), getstr(), logining(), main(), service_client(), snd(), spnfs_write(), zso_hook_chdir(), zso_hook_close(), zso_hook_dir(), zso_hook_exit(), zso_hook_mkdir(), zso_hook_open(), zso_hook_pos(), zso_hook_pwd(), zso_hook_read(), zso_hook_seek(), zso_hook_size(), zso_hook_touch(), zso_hook_trunc(), and zso_hook_write().

                                                   {
#ifdef DEB
    std::string tmp(str); printf("write() -> %s\n", tmp.c_str());
#endif
    return write(fd, str.data(), str.size() );
};

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