81 lines
5.3 KiB
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81 lines
5.3 KiB
HTML
<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Function WRITE-STRING, WRITE-LINE</TITLE>
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<A NAME="write-string"><A NAME="write-line"><I>Function</I> <B>WRITE-STRING, WRITE-LINE</B></A></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>write-string</B> <I>string <TT>&optional</TT> output-stream <TT>&key</TT> start end</I> => <I>string</I><P>
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<B>write-line</B> <I>string <TT>&optional</TT> output-stream <TT>&key</TT> start end</I> => <I>string</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>string</I>---a <A REL=DEFINITION HREF="26_glo_s.htm#string"><I>string</I></A>. <P>
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<I>output-stream</I> -- an <A REL=DEFINITION HREF="26_glo_o.htm#output"><I>output</I></A> <A REL=DEFINITION HREF="26_glo_s.htm#stream_designator"><I>stream designator</I></A>. The default is <A REL=DEFINITION HREF="26_glo_s.htm#standard_output"><I>standard output</I></A>. <P>
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<I>start</I>, <I>end</I>---<A REL=DEFINITION HREF="26_glo_b.htm#bounding_index_designator"><I>bounding index designators</I></A> of <I>string</I>. The defaults for <I>start</I> and <I>end</I> are <TT>0</TT> and <A REL=DEFINITION HREF="a_nil.htm#nil"><B>nil</B></A>, respectively. <P>
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<P><B>Description:</B><P>
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<P>
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<A REL=DEFINITION HREF="#write-string"><B>write-string</B></A> writes the <A REL=DEFINITION HREF="26_glo_c.htm#character"><I>characters</I></A> of the subsequence of <I>string</I> <A REL=DEFINITION HREF="26_glo_b.htm#bounded"><I>bounded</I></A> by <I>start</I> and <I>end</I> to <I>output-stream</I>. <A REL=DEFINITION HREF="#write-line"><B>write-line</B></A> does the same thing, but then outputs a newline afterwards. <P>
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<P><B>Examples:</B><P>
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<P>
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<PRE>
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(prog1 (write-string "books" nil :end 4) (write-string "worms"))
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>> bookworms
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=> "books"
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(progn (write-char #\*)
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(write-line "test12" *standard-output* :end 5)
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(write-line "*test2")
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(write-char #\*)
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nil)
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>> *test1
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>> *test2
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>> *
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=> NIL
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</PRE>
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</TT> <P>
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<P><B>Side Effects:</B> None.
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<P>
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<P><B>Affected By:</B><P>
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<P>
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<A REL=DEFINITION HREF="v_debug_.htm#STstandard-outputST"><B>*standard-output*</B></A>, <A REL=DEFINITION HREF="v_termin.htm#STterminal-ioST"><B>*terminal-io*</B></A>. <P>
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<P><B>Exceptional Situations:</B> None.
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<P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="f_rd_lin.htm#read-line"><B>read-line</B></A>, <A REL=DEFINITION HREF="f_wr_cha.htm#write-char"><B>write-char</B></A> <P>
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<P><B>Notes:</B><P>
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<P>
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<A REL=DEFINITION HREF="#write-line"><B>write-line</B></A> and <A REL=DEFINITION HREF="#write-string"><B>write-string</B></A> return <I>string</I>, not the substring <A REL=DEFINITION HREF="26_glo_b.htm#bounded"><I>bounded</I></A> by <I>start</I> and <I>end</I>. <P>
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<PRE>
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(write-string string)
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== (dotimes (i (length string)
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(write-char (char string i)))
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(write-line string)
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== (prog1 (write-string string) (terpri))
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</PRE>
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</TT> <P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issues</A>, <I>not part of the specification</I>, apply to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss284.htm">RANGE-OF-START-AND-END-PARAMETERS:INTEGER-AND-INTEGER-NIL</A><LI> <A REL=CHILD HREF="../Issues/iss332.htm">SUBSEQ-OUT-OF-BOUNDS</A><P></UL><HR>
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