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+>Introduction
+  [CLHS-1]</TITLE
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+  [CLHS-1.4.2]"
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+>Implementation Notes for <A
+HREF="http://www.gnu.org"
+TARGET="_top"
+>GNU</A
+> <A
+HREF="http://clisp.cons.org"
+TARGET="_top"
+><B
+CLASS="command"
+>CLISP</B
+></A
+>.: These notes document <A
+HREF="http://clisp.cons.org"
+TARGET="_top"
+><B
+CLASS="command"
+>CLISP</B
+></A
+> version 2.31.</TH
+></TR
+><TR
+><TD
+WIDTH="10%"
+ALIGN="left"
+VALIGN="bottom"
+><A
+HREF="clhs-chapters.html"
+ACCESSKEY="P"
+>Prev</A
+></TD
+><TD
+WIDTH="80%"
+ALIGN="center"
+VALIGN="bottom"
+></TD
+><TD
+WIDTH="10%"
+ALIGN="right"
+VALIGN="bottom"
+><A
+HREF="error-terms.html"
+ACCESSKEY="N"
+>Next</A
+></TD
+></TR
+></TABLE
+><HR
+ALIGN="LEFT"
+WIDTH="100%"></DIV
+><DIV
+CLASS="chapter"
+><H1
+><A
+NAME="intro"
+></A
+>Chapter 1. Introduction
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/chap-1.html"
+TARGET="_top"
+>[CLHS-1]</A
+></H1
+><DIV
+CLASS="TOC"
+><DL
+><DT
+><B
+>Table of Contents</B
+></DT
+><DT
+>1.1. <A
+HREF="intro.html#spec-symb"
+>Special Symbols
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-4-1-3.html"
+TARGET="_top"
+>[CLHS-1.4.1.3]</A
+></A
+></DT
+><DT
+>1.2. <A
+HREF="error-terms.html"
+>Error Terminology
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-4-2.html"
+TARGET="_top"
+>[CLHS-1.4.2]</A
+></A
+></DT
+><DT
+>1.3. <A
+HREF="class-prec.html"
+>Class Precedence Lists
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-4-4-5.html"
+TARGET="_top"
+>[CLHS-1.4.4.5]</A
+></A
+></DT
+><DT
+>1.4. <A
+HREF="cl-symb.html"
+>Symbols in the Package <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_11-1-2-1.html"
+TARGET="_top"
+><STRONG
+CLASS="package"
+><SPAN
+CLASS="QUOTE"
+>"COMMON-LISP"</SPAN
+></STRONG
+></A
+>
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-9.html"
+TARGET="_top"
+>[CLHS-1.9]</A
+></A
+></DT
+></DL
+></DIV
+><DIV
+CLASS="section"
+><H1
+CLASS="section"
+><A
+NAME="spec-symb"
+></A
+>1.1. Special Symbols
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-4-1-3.html"
+TARGET="_top"
+>[CLHS-1.4.1.3]</A
+></H1
+><P
+ALIGN="justify"
+>The final delimiter of an interactive stream: On <A
+HREF="http://www.UNIX-systems.org/online.html"
+TARGET="_top"
+><B
+CLASS="emphasis"
+>UNIX</B
+></A
+>, the user
+ has to type <B
+CLASS="keycap"
+>Control</B
+>-<SPAN
+CLASS="keysym"
+>D</SPAN
+> at the
+ beginning of a line. On <A
+HREF="http://www.freedos.org/"
+TARGET="_top"
+><B
+CLASS="emphasis"
+>DOS</B
+></A
+> or <A
+HREF="http://www.willows.com/"
+TARGET="_top"
+><B
+CLASS="emphasis"
+>Win32</B
+></A
+>, the user has to type
+ <B
+CLASS="keycap"
+>Control</B
+>-<SPAN
+CLASS="keysym"
+>Z</SPAN
+>, followed
+ by <B
+CLASS="keycap"
+>Return</B
+>.  This final delimiter is never actually
+ seen by programs; no need to test for <SPAN
+CLASS="keysym"
+>#\^D</SPAN
+> or
+ <SPAN
+CLASS="keysym"
+>#\^Z</SPAN
+> - use <A
+HREF="http://www.lisp.org/HyperSpec/Body/fun_read-char-no-hang.html"
+TARGET="_top"
+><TT
+CLASS="function"
+>READ-CHAR-NO-HANG</TT
+></A
+> to check for end of
+ stream.  Calling <A
+HREF="http://www.lisp.org/HyperSpec/Body/fun_clear-input.html"
+TARGET="_top"
+><TT
+CLASS="function"
+>CLEAR-INPUT</TT
+></A
+> on the stream removes the <A
+HREF="http://www.lisp.org/HyperSpec/Body/glo_e.html#end_of_file"
+TARGET="_top"
+><TT
+CLASS="literal"
+>end-of-stream</TT
+></A
+> state,
+ thus making it available for further input.</P
+><P
+ALIGN="justify"
+>A newline character can be entered by the user by pressing the
+ <B
+CLASS="keycap"
+>Newline</B
+> key or, on the numeric keypad, the
+ <B
+CLASS="keycap"
+>Enter</B
+> key.</P
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+WIDTH="33%"
+ALIGN="right"
+VALIGN="top"
+>Error Terminology
+  <A
+HREF="http://www.lisp.org/HyperSpec/Body/sec_1-4-2.html"
+TARGET="_top"
+>[CLHS-1.4.2]</A
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