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/* ISC license. */
#include <errno.h>
#include <skalibs/strerr2.h>
#include <skalibs/buffer.h>
#include <skalibs/stralloc.h>
#include <skalibs/skamisc.h>
#define USAGE "s6-format-filter format [ args... ]"
int main (int argc, char const *const *argv)
{
stralloc src = STRALLOC_ZERO ;
stralloc dst = STRALLOC_ZERO ;
char vars[12] = "s0123456789" ;
char const *args[12] = { "" } ;
char const *format ;
PROG = "s6-format-filter" ;
argc-- ; args[1] = *argv++ ;
if (!argc--) strerr_dieusage(100, USAGE) ;
format = *argv++ ;
if (argc > 9) argc = 9 ;
vars[argc+2] = 0 ;
{
register unsigned int i = 0 ;
for (; i < (unsigned int)argc ; i++) args[2+i] = argv[i] ;
}
if (!string_format(&dst, vars, format, args))
strerr_diefu1sys(111, "compile format") ;
for (;;)
{
register int r ;
src.len = 0 ;
dst.len = 0 ;
r = skagetln(buffer_0f1, &src, '\n') ;
if (!r) break ;
else if (r < 0)
{
if ((errno != EPIPE) || !stralloc_0(&src))
strerr_diefu1sys(111, "read from stdin") ;
}
else src.s[src.len-1] = 0 ;
args[0] = src.s ;
if (!string_format(&dst, vars, format, args))
{
int e = errno ;
buffer_flush(buffer_1) ;
errno = e ;
strerr_diefu1sys(111, "format") ;
}
if (r > 0)
{
if (!stralloc_catb(&dst, "\n", 1))
strerr_diefu1sys(111, "format") ;
}
if (buffer_put(buffer_1, dst.s, dst.len) < 0)
strerr_diefu1sys(111, "write to stdout") ;
}
return 0 ;
}
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