From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HTML_MESSAGE,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, UPPERCASE_50_75 autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 20600 invoked from network); 28 May 2020 13:31:24 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 28 May 2020 13:31:24 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 134BC9C863; Thu, 28 May 2020 23:31:19 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 6B0109C5E8; Thu, 28 May 2020 23:30:40 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (1024-bit key; unprotected) header.d=ccc.com header.i=@ccc.com header.b="dRUNrYk4"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id B06F69C5E8; Thu, 28 May 2020 23:30:37 +1000 (AEST) Received: from mail-qt1-f176.google.com (mail-qt1-f176.google.com [209.85.160.176]) by minnie.tuhs.org (Postfix) with ESMTPS id C47829C194 for ; 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Thu, 28 May 2020 06:30:35 -0700 (PDT) MIME-Version: 1.0 References: <1jeHk5-5LM-00@marmaro.de> In-Reply-To: <1jeHk5-5LM-00@marmaro.de> From: Clem Cole Date: Thu, 28 May 2020 09:30:09 -0400 Message-ID: To: markus schnalke Content-Type: multipart/alternative; boundary="0000000000005ecb9805a6b55567" Subject: Re: [TUHS] fmt(1): history, POSIX, -t, -c X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --0000000000005ecb9805a6b55567 Content-Type: text/plain; charset="UTF-8" fmt was originally written by Kurt Shoens at UCB when he worked in Mail and delivermail. begin 644 fmt.tar.bz2 M0EIH.3%!62936:*IABH`#=1_U/TP`8!_____________W_]2B`0```(""&`: M7W@`/IIH`&@T!-$9$R:3U M%/4VH>4;4](PT0-&)H`-```````U,DRIZ!#U!M1D>B-#$;2&F(9-```80#0` M:,)H"32B0*;*:GD$G@*'Z*>F3(U#U-J;1#TAZAH#)Z@T!ZFC1Z@`<```T#0T M-#3(`-``!H!H:``!D``"1$$"`$9"&(TDS30IZ,4;4;4Q,&H,@8F@-&F@&RGY M1?G$_-^6''G7ZU]8;A,V`VT\0%_TFD"/3Y8^MQV#;T(R3^!&;`F`*((#98)( M4KO"=V(3&($G$>RP@@PD*Q6("451L[MJL5D1"**K$6`J,(@Q8B"+$8K$4!@_ M;M`VE:!8)HAN9R\O#WWVMVS1SG`9$5`Q2B`H+[:-E4,%OIM%%1C$0,,* [ctcole-mac09:bsd-sources/usr.bin/fmt] ctcole% wc -l *uu 129 fmt.tar.bz2.uu [ctcole-mac09:bsd-sources/usr.bin/fmt] ctcole% clear [ctcole-mac09:bsd-sources/usr.bin/fmt] ctcole% cat *uu begin 644 fmt.tar.bz2 M0EIH.3%!62936:*IABH`#=1_U/TP`8!_____________W_]2B`0```(""&`: M7W@`/IIH`&@T!-$9$R:3U M%/4VH>4;4](PT0-&)H`-```````U,DRIZ!#U!M1D>B-#$;2&F(9-```80#0` M:,)H"32B0*;*:GD$G@*'Z*>F3(U#U-J;1#TAZAH#)Z@T!ZFC1Z@`<```T#0T M-#3(`-``!H!H:``!D``"1$$"`$9"&(TDS30IZ,4;4;4Q,&H,@8F@-&F@&RGY M1?G$_-^6''G7ZU]8;A,V`VT\0%_TFD"/3Y8^MQV#;T(R3^!&;`F`*((#98)( M4KO"=V(3&($G$>RP@@PD*Q6("451L[MJL5D1"**K$6`J,(@Q8B"+$8K$4!@_ M;M`VE:!8)HAN9R\O#WWVMVS1SG`9$5`Q2B`H+[:-E4,%OIM%%1C$0,,* M6F%<6T%F^RQQ2L8`Q-::(N!!!6T"BD8CNGT_9]7/./^RH,2SP9SG(VU<+B7# M?263G$UI\F_!TUCIMVWANX6XIF7'BKBXI0U8R9IEQ3"N"AC%5+FRI%/4_LWP MXOW?SWG!=9P3@;Z5LX-=^<#>!7#BPMQIBY-$#&:#%'%JDT,Z+>1T'?DV,\WP7]:WQ$PF`9A(%,A3ZC`X2"%9$ M5IK!-,8M!GW6PV3(L-F(SBX+8/7.OF4V5#[,^4XWG:,RYYR[?IWY_E;ER1>R M#!5&N&I^VQ];,DF+YW8[(FI!$L@MYSH&)9=9VF6UT63U636+:N8T`Y-73*TP MP@C@SDC"9>0+W2CJ)"@\QC3$AQT@1%`PH,FZHPZ06];I24(Q/-Z^IYVW0DGN<_M*JJHZ@G=8<_O@[*%XSQ(=O9>A=OM;&,KQ6IJ M^QOF-Y;'43G4P0>@JHBH)V:"111K!A.H?C-OO>SVGNGHP,5V/(8Q]BTH$TB! 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Now someone asked me about > `-t' and `-c' of *GNU* fmt(1). I wasn't able to find good documentation > on them. The manpage only tells that they have to do with different > indentation for the first or first two lines. But what are the use > cases? How would source text for these parameters look like? > > A look into the description and rationale sections of POSIX, which > often provides helpful information, was not possible because fmt(1) > is not part of POSIX (only fold(1) is). Why's that? Is it because > fmt(1) differs so much between Unix implementations? On BSD `-c' > centers text and `-t' sets tab widths. Plan 9 has none of these > options. But still, `-w' could have been standardized. Or was the > line filling algorithm different as well? How does fold(1) fit into > the picture? > > Maybe you can answer some of these questions or give hints on where > I could find answers myself. > > > meillo > --0000000000005ecb9805a6b55567 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
fmt was originally written by Kurt Shoens at UCB when h= e worked in Mail and delivermail.=C2=A0 =C2=A0


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[ctcole-mac09:bsd-sources/usr.bin/fmt] c= tcole% wc -l *uu
129 fmt.tar.bz2.uu
[ctcole-mac09:bsd-sources/usr.bin= /fmt] ctcole% clear
[ctcole-mac09:bsd-sources/usr.bin/fmt] ctcole% cat *= uu
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end

On Thu, May 28, 2020 at 8:41 AM markus sc= hnalke <meillo@marmaro.de> w= rote:
Hoi,

personally I use fmt(1) a lot for email formatting and such.
Typically I only use the `-w' parameter. Now someone asked me about
`-t' and `-c' of *GNU* fmt(1). I wasn't able to find good docum= entation
on them. The manpage only tells that they have to do with different
indentation for the first or first two lines. But what are the use
cases? How would source text for these parameters look like?

A look into the description and rationale sections of POSIX, which
often provides helpful information, was not possible because fmt(1)
is not part of POSIX (only fold(1) is). Why's that? Is it because
fmt(1) differs so much between Unix implementations? On BSD `-c'
centers text and `-t' sets tab widths. Plan 9 has none of these
options. But still, `-w' could have been standardized. Or was the
line filling algorithm different as well? How does fold(1) fit into
the picture?

Maybe you can answer some of these questions or give hints on where
I could find answers myself.


meillo
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