Date: Mon, 29 Jun 1998 12:37:29 -0700 (PDT) From: archie@whistle.com To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: bin/7117: flex -I option is broken Message-ID: <199806291937.MAA29644@bubba.whistle.com>
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>Number: 7117 >Category: bin >Synopsis: flex -I option is broken >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jun 29 12:40:00 PDT 1998 >Last-Modified: >Originator: Archie Cobbs >Organization: Whistle Communications, Inc. >Release: FreeBSD 2.2.6-RELEASE i386 >Environment: FreeBSD 2.2.6-RELEASE flex version 2.5.4 >Description: Flex has an option "-I" which is supposed to make the scanner interactive. This is the default anyway, so -I is probably not used. However, if isatty(input) == 0, then flex will switch the scanning to batch mode, EVEN IF -I WAS SPECIFIED ON THE COMMAND LINE. In other words, the man page makes it look like setting -I on the command line is equivalent to %option always-interactive. However, this is not the behavior. Even with -I, if the input is not isatty(), then flex goes into batch mode. >How-To-Repeat: flex -I file.l parse taking input from a tcp connection, for example >Fix: Make -I equivalent to %option always-interactive, or else fix the man page to reflect reality. >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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