ref: a351bcdccdf5a4273bc8dc3360a48fbb8b8aa9ea
dir: /progs/match.c.ms/
.P1
.ps -1
.ti -1i
.B
.BX match.c
.ps +1
.CW
.ps -2
.vs .15i
#include <u.h>
#include <libc.h>
#include <regexp.h>
void
main(int argc, char* argv[])
{
Reprog* prog;
Resub sub[16];
char buf[1024];
int nr, ismatch, i;
if (argc != 2){
fprint(2, "usage: %s regexp\en", argv[0]);
exits("usage");
}
prog = regcomp(argv[1]);
if (prog == nil)
sysfatal("regexp '%s': %r", buf);
for(;;){
nr = read(0, buf, sizeof(buf)-1);
if (nr <= 0)
break;
buf[nr] = 0;
ismatch = regexec(prog, buf, sub, nelem(sub));
if (!ismatch)
print("no match\en");
else {
print("matched: '");
write(1, sub[0].sp, sub[0].ep - sub[0].sp);
print("'\en");
}
}
exits(nil);
}
.ps +2
.P2