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/*
* quote from lines without messing with character encoding.
* (might rather just undo the character encoding and use sed.)
*/
#include <u.h>
#include <libc.h>
#include <bio.h>
void
qfrom(int fd)
{
Biobuf b, bo;
char *s;
int l;
if(Binit(&b, fd, OREAD) == -1)
sysfatal("Binit: %r");
if(Binit(&bo, 1, OWRITE) == -1)
sysfatal("Binit: %r");
while(s = Brdstr(&b, '\n', 0)){
l = Blinelen(&b);
if(l >= 5)
if(memcmp(s, "From ", 5) == 0)
Bputc(&bo, ' ');
Bwrite(&bo, s, l);
free(s);
}
Bterm(&b);
Bterm(&bo);
}
void
usage(void)
{
fprint(2, "usage: qfrom [files...]\n");
exits("");
}
void
main(int argc, char **argv)
{
int fd;
ARGBEGIN{
default:
usage();
}ARGEND
if(*argv == 0){
qfrom(0);
exits("");
}
for(; *argv; argv++){
fd = open(*argv, OREAD);
if(fd == -1)
sysfatal("open: %r");
qfrom(fd);
close(fd);
}
exits("");
}
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