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<HTML><!--Distributed by F --><HEAD><TITLE>[Chapter 31] 31.10 Repeating a vi Keymap </TITLE><METANAME="DC.title"CONTENT="UNIX Power Tools"><METANAME="DC.creator"CONTENT="Jerry Peek, Tim O'Reilly & Mike Loukides"><METANAME="DC.publisher"CONTENT="O'Reilly & Associates, Inc."><METANAME="DC.date"CONTENT="1998-08-04T21:46:24Z"><METANAME="DC.type"CONTENT="Text.Monograph"><METANAME="DC.format"CONTENT="text/html"SCHEME="MIME"><METANAME="DC.source"CONTENT="1-56592-260-3"SCHEME="ISBN"><METANAME="DC.language"CONTENT="en-US"><METANAME="generator"CONTENT="Jade 1.1/O'Reilly DocBook 3.0 to HTML 4.0"><LINKREV="made"HREF="mailto:online-books@oreilly.com"TITLE="Online Books Comments"><LINKREL="up"HREF="ch31_01.htm"TITLE="31. Creating Custom Commands in vi"><LINKREL="prev"HREF="ch31_09.htm"TITLE="31.9 Good Stuff for Your .exrc File "><LINKREL="next"HREF="ch31_11.htm"TITLE="31.11 Typing in Uppercase Without CAPS LOCK "></HEAD><BODYBGCOLOR="#FFFFFF"TEXT="#000000"><DIVCLASS="htmlnav"><H1><IMGSRC="gifs/smbanner.gif"ALT="UNIX Power Tools"USEMAP="#srchmap"BORDER="0"></H1><MAPNAME="srchmap"><AREASHAPE="RECT"COORDS="0,0,466,58"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="467,0,514,18"HREF="jobjects/fsearch.htm"ALT="Search this book"></MAP><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch31_09.htm"TITLE="31.9 Good Stuff for Your .exrc File "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 31.9 Good Stuff for Your .exrc File "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><B><FONTFACE="ARIEL,HELVETICA,HELV,SANSERIF"SIZE="-1">Chapter 31<BR>Creating Custom Commands in vi</FONT></B></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch31_11.htm"TITLE="31.11 Typing in Uppercase Without CAPS LOCK "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 31.11 Typing in Uppercase Without CAPS LOCK "BORDER="0"></A></TD></TR></TABLE> <HRALIGN="LEFT"WIDTH="515"TITLE="footer"></DIV><DIVCLASS="SECT1"><H2CLASS="sect1"><ACLASS="title"NAME="UPT-ART-0138">31.10 Repeating a vi Keymap </A></H2><PCLASS="para">The <EMCLASS="emphasis">vi</EM> (actually, <EMCLASS="emphasis">ex</EM>) command<SPANCLASS="link"><CODECLASS="literal">map</CODE> (<ACLASS="linkend"HREF="ch31_02.htm"TITLE="Save Time and Typing with the vi map Commands ">31.2</A>)</SPAN>lets you buildcustom <EMCLASS="emphasis">vi</EM> commands.For example, this map redefines the <CODECLASS="literal">-</CODE> key to run the <EMCLASS="emphasis">vi</EM>commands <EMCLASS="emphasis">o</EM> (open a new line below), <EMCLASS="emphasis">ESCAPE</EM>, <EMCLASS="emphasis">75a-</EM> (add 75dashes), and <EMCLASS="emphasis">ESCAPE</EM> again:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen"><CODECLASS="userinput"><B>:map - o^[75a-^[</B></CODE></PRE></BLOCKQUOTE></P><PCLASS="para">So typing <EMCLASS="emphasis">-</EM> draws a row of dashes below the current line.The problem is that on many versions of <EMCLASS="emphasis">vi</EM>, you can't add a repetitionnumber - that is, you can't type the command <CODECLASS="literal">10-</CODE> to add 10 dashedlines. </P><PCLASS="para">The workaround is to define another macro that calls the first macroten times.For example, to make the <CODECLASS="literal">v</CODE> key draw ten rows of dashes:</P><PCLASS="para"><BLOCKQUOTECLASS="screen"><PRECLASS="screen"><CODECLASS="userinput"><B>:map v ----------</B></CODE></PRE></BLOCKQUOTE></P><PCLASS="para">(Ugly, eh? But it works.)You might want to put the <CODECLASS="literal">-</CODE> map in your <EMCLASS="emphasis">.exrc</EM> fileand define "multi-maps" like <EMCLASS="emphasis">v</EM> while you're running <EMCLASS="emphasis">vi</EM>.</P><DIVCLASS="sect1info"><PCLASS="SECT1INFO">- <SPANCLASS="authorinitials">JP</SPAN></P></DIV></DIV><DIVCLASS="htmlnav"><P></P><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><TABLEWIDTH="515"BORDER="0"CELLSPACING="0"CELLPADDING="0"><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch31_09.htm"TITLE="31.9 Good Stuff for Your .exrc File "><IMGSRC="gifs/txtpreva.gif"SRC="gifs/txtpreva.gif"ALT="Previous: 31.9 Good Stuff for Your .exrc File "BORDER="0"></A></TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="book"HREF="index.htm"TITLE="UNIX Power Tools"><IMGSRC="gifs/txthome.gif"SRC="gifs/txthome.gif"ALT="UNIX Power Tools"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172"><ACLASS="SECT1"HREF="ch31_11.htm"TITLE="31.11 Typing in Uppercase Without CAPS LOCK "><IMGSRC="gifs/txtnexta.gif"SRC="gifs/txtnexta.gif"ALT="Next: 31.11 Typing in Uppercase Without CAPS LOCK "BORDER="0"></A></TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"WIDTH="172">31.9 Good Stuff for Your .exrc File </TD><TDALIGN="CENTER"VALIGN="TOP"WIDTH="171"><ACLASS="index"HREF="index/idx_0.htm"TITLE="Book Index"><IMGSRC="gifs/index.gif"SRC="gifs/index.gif"ALT="Book Index"BORDER="0"></A></TD><TDALIGN="RIGHT"VALIGN="TOP"WIDTH="172">31.11 Typing in Uppercase Without CAPS LOCK </TD></TR></TABLE><HRALIGN="LEFT"WIDTH="515"TITLE="footer"><IMGSRC="gifs/smnavbar.gif"SRC="gifs/smnavbar.gif"USEMAP="#map"BORDER="0"ALT="The UNIX CD Bookshelf Navigation"><MAPNAME="map"><AREASHAPE="RECT"COORDS="0,0,73,21"HREF="../index.htm"ALT="The UNIX CD Bookshelf"><AREASHAPE="RECT"COORDS="74,0,163,21"HREF="index.htm"ALT="UNIX Power Tools"><AREASHAPE="RECT"COORDS="164,0,257,21"HREF="../unixnut/index.htm"ALT="UNIX in a Nutshell"><AREASHAPE="RECT"COORDS="258,0,321,21"HREF="../vi/index.htm"ALT="Learning the vi Editor"><AREASHAPE="RECT"COORDS="322,0,378,21"HREF="../sedawk/index.htm"ALT="sed & awk"><AREASHAPE="RECT"COORDS="379,0,438,21"HREF="../ksh/index.htm"ALT="Learning the Korn Shell"><AREASHAPE="RECT"COORDS="439,0,514,21"HREF="../lrnunix/index.htm"ALT="Learning the UNIX Operating System"></MAP></DIV></BODY></HTML>⌨️ 快捷键说明
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