C++ (Cpp) STUNPUTC Examples

Example #1

File: expand.c Project: egraba/kbuild_openbsd

STATIC void
expbackq(shinstance *psh, union node *cmd, int quoted, int flag)
{
	struct backcmd in;
	int i;
	char buf[128];
	char *p;
	char *dest = psh->expdest;
	struct ifsregion saveifs, *savelastp;
	struct nodelist *saveargbackq;
	char lastc;
	int startloc = (int)(dest - stackblock(psh));
	char const *syntax = quoted? DQSYNTAX : BASESYNTAX;
	int saveherefd;
	int quotes = flag & (EXP_FULL | EXP_CASE);
#ifdef SH_DEAL_WITH_CRLF
	int pending_cr = 0;
#endif

	INTOFF;
	saveifs = psh->ifsfirst;
	savelastp = psh->ifslastp;
	saveargbackq = psh->argbackq;
	saveherefd = psh->herefd;
	psh->herefd = -1;
	p = grabstackstr(psh, dest);
	evalbackcmd(psh, cmd, &in);
	ungrabstackstr(psh, p, dest);
	psh->ifsfirst = saveifs;
	psh->ifslastp = savelastp;
	psh->argbackq = saveargbackq;
	psh->herefd = saveherefd;

	p = in.buf;
	lastc = '\0';
	for (;;) {
		if (--in.nleft < 0) {
			if (in.fd < 0)
				break;
			while ((i = shfile_read(&psh->fdtab, in.fd, buf, sizeof buf)) < 0 && errno == EINTR);
			TRACE((psh, "expbackq: read returns %d\n", i));
			if (i <= 0)
				break;
			p = buf;
			in.nleft = i - 1;
		}
		lastc = *p++;
#ifdef SH_DEAL_WITH_CRLF
		if (pending_cr) {
			pending_cr = 0;
			if (lastc != '\n') {
				if (quotes && syntax[(int)'\r'] == CCTL)
					STPUTC(psh, CTLESC, dest);
				STPUTC(psh, '\r', dest);
			}
		}
		if (lastc == '\r')
			pending_cr = '\r';
		else
#endif
		if (lastc != '\0') {
			if (quotes && syntax[(int)lastc] == CCTL)
				STPUTC(psh, CTLESC, dest);
			STPUTC(psh, lastc, dest);
		}
	}
#ifdef SH_DEAL_WITH_CRLF
	if (pending_cr) {
		if (quotes && syntax[(int)'\r'] == CCTL)
			STPUTC(psh, CTLESC, dest);
		STPUTC(psh, '\r', dest);
	}
#endif

	/* Eat all trailing newlines */
	p = stackblock(psh) + startloc;
	while (dest > p && dest[-1] == '\n')
		STUNPUTC(psh, dest);

	if (in.fd >= 0)
		shfile_close(&psh->fdtab, in.fd);
	if (in.buf)
		ckfree(psh, in.buf);
	if (in.jp)
		psh->back_exitstatus = waitforjob(psh, in.jp);
	if (quoted == 0)
		recordregion(psh, startloc, (int)(dest - stackblock(psh)), 0);
	TRACE((psh, "evalbackq: size=%d: \"%.*s\"\n",
		(dest - stackblock(psh)) - startloc,
		(dest - stackblock(psh)) - startloc,
		stackblock(psh) + startloc));
	psh->expdest = dest;
	INTON;
}

Example #2

File: expand.c Project: 0omega/platform_system_core

STATIC void
expbackq(union node *cmd, int quoted, int flag)
{
	struct backcmd in;
	int i;
	char buf[128];
	char *p;
	char *dest = expdest;
	struct ifsregion saveifs, *savelastp;
	struct nodelist *saveargbackq;
	char lastc;
	int startloc = dest - stackblock();
	char const *syntax = quoted? DQSYNTAX : BASESYNTAX;
	int saveherefd;
	int quotes = flag & (EXP_FULL | EXP_CASE);

	INTOFF;
	saveifs = ifsfirst;
	savelastp = ifslastp;
	saveargbackq = argbackq;
	saveherefd = herefd;
	herefd = -1;
	p = grabstackstr(dest);
	evalbackcmd(cmd, &in);
	ungrabstackstr(p, dest);
	ifsfirst = saveifs;
	ifslastp = savelastp;
	argbackq = saveargbackq;
	herefd = saveherefd;

	p = in.buf;
	lastc = '\0';
	for (;;) {
		if (--in.nleft < 0) {
			if (in.fd < 0)
				break;
			while ((i = read(in.fd, buf, sizeof buf)) < 0 && errno == EINTR);
			TRACE(("expbackq: read returns %d\n", i));
			if (i <= 0)
				break;
			p = buf;
			in.nleft = i - 1;
		}
		lastc = *p++;
		if (lastc != '\0') {
			if (quotes && syntax[(int)lastc] == CCTL)
				STPUTC(CTLESC, dest);
			STPUTC(lastc, dest);
		}
	}

	/* Eat all trailing newlines */
	p = stackblock() + startloc;
	while (dest > p && dest[-1] == '\n')
		STUNPUTC(dest);

	if (in.fd >= 0)
		close(in.fd);
	if (in.buf)
		ckfree(in.buf);
	if (in.jp)
		back_exitstatus = waitforjob(in.jp);
	if (quoted == 0)
		recordregion(startloc, dest - stackblock(), 0);
	TRACE(("evalbackq: size=%d: \"%.*s\"\n",
		(dest - stackblock()) - startloc,
		(dest - stackblock()) - startloc,
		stackblock() + startloc));
	expdest = dest;
	INTON;
}