Path: csiph.com!goblin2!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: readline fails to understand options. 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Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 In-Reply-To: Content-Language: en-US X-Junkmail-Status: score=7/90, host=mpv4-2015.case.edu X-Junkmail-PrAS-Raw: score=7/90, refid=2.7.2:2018.12.26.162716:17:7.944, ip=, rules=__YOUTUBE_RCVD, __X_GOOGLE_DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __TO_MALFORMED_2, __TO_NAME, __TO_NAME_DIFF_FROM_ACC, __REFERENCES, __HAS_FROM, FROM_EDU_TLD, __HAS_MSGID, __SANE_MSGID, DATE_TZ_NA, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __FROM_DOMAIN_IN_ANY_CC1, __FROM_DOMAIN_IN_ANY_CC2, __REPLYTO_SAMEAS_FROM_DOMAIN, __ANY_URI, __URI_WITH_PATH, __URI_NO_WWW, __HIGHBITS, __CP_URI_IN_BODY, __FRAUD_MONEY_CURRENCY_DOLLAR, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __FORWARDED_MSG, __NO_HTML_TAG_RAW, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_1800_1899, __MIME_TEXT_P1, __MIME_TEXT_ONLY, __URI_NS, HTML_00_01, HTML_00_10, __FRAUD_MONEY_CURRENCY, BODY_SIZE_5000_LESS, IN_REP_TO, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.195 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:14958 On 12/21/18 12:52 AM, Bize Ma wrote: > This works: > >      $ bind 'set enable-bracketed-paste on'; bind -v | grep 'bracketed' >      set enable-bracketed-paste on > > However, almost any variation of the parameter "on" is not understood by > readline: > >      $ bind 'set enable-bracketed-paste on .'; bind -v | grep 'bracketed' >      set enable-bracketed-paste off > >      $ bind 'set enable-bracketed-paste "on"'; bind -v | grep 'bracketed' >      set enable-bracketed-paste off > > Without any error or warning !! It strips trailing whitespace but not much else. > It appears to fall to default value, while this: > >      $ bind 'set bell-style on' ; bind -v | grep 'bell-style' >      set bell-style audible > >      $ bind 'set bell-style onf' ; bind -v | grep 'bell-style' >      set bell-style audible > > Stays at its last value. The difference is that the readline parser treats anything other than "on" or "1" as false/off/0 when it sets boolean variables. > It seems that the parser for this options is unable to process anything > after a valid parameter. And it doesn't emit an error or warning either. Yes, the readline `bind' parser has traditionally been very permissive in some ways, strict in others. There are more warnings than before, but still relatively few. > Since the parser needs some improvement: Could it be possible to add the > capability to detect  a `#` after the options as a comment ? Sure, it's a candidate for inclusion in a future version. I wouldn't object if someone wanted to do a sample implementation, since it changes how the variable value is parsed. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/