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>pprint-indent | Common Lisp Nova Spec</TITLE
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><B
>pprint-indent</B
></TD
><TD ALIGN="RIGHT" VALIGN="BASELINE" WIDTH="0" NOWRAP="NOWRAP" CLASS="ftype"
><I
>Function</I
></TD
></TR
></TABLE
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><DL
><DT
><B
>Syntax</B
></DT
><DD
><P CLASS="j"
><B
>pprint-indent</B
> <SPAN CLASS="cmssi"
>relative-to</SPAN
> <SPAN CLASS="cmssi"
>n</SPAN
> <SPAN CLASS="cmtt"
>&amp;optional</SPAN
> <SPAN CLASS="cmssi"
>stream</SPAN
> <SPAN CLASS="arrow"
>&#8594;</SPAN
> <SPAN CLASS="misc"
><B
>nil</B
></SPAN
></P
></DD
><DT
><B
>Arguments and Values</B
></DT
><DD
><P CLASS="j"
><VAR CLASS="param"
>relative-to</VAR
> &#8212; either <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:block</SPAN
></SPAN
> or <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:current</SPAN
></SPAN
>. </P
><P CLASS="j"
><VAR CLASS="param"
>n</VAR
> &#8212; a <EM CLASS="term"
>real</EM
>. </P
><P CLASS="j"
><VAR CLASS="param"
>stream</VAR
> &#8212; an <A HREF="26_1_Glossary.html#output"
><EM CLASS="term"
>output</EM
></A
> <A HREF="26_1_Glossary.html#stream_designator"
><EM CLASS="term"
>stream designator</EM
></A
>. The default is <A HREF="26_1_Glossary.html#standard_output"
><EM CLASS="term"
>standard output</EM
></A
>.</P
></DD
><DT
><B
>Description</B
></DT
><DD
><P CLASS="j"
><A HREF="f_pprint-indent.html" CLASS="funref"
><B
>pprint-indent</B
></A
> specifies the indentation to use in a logical block on <A HREF="26_1_Glossary.html#stream"
><EM CLASS="term"
>stream</EM
></A
>. If <VAR CLASS="param"
>stream</VAR
> is a <A HREF="26_1_Glossary.html#pretty_printing_stream"
><EM CLASS="term"
>pretty printing stream</EM
></A
> and the <A HREF="26_1_Glossary.html#value"
><EM CLASS="term"
>value</EM
></A
> of <A HREF="v_print-pretty.html" CLASS="misc"
><B
>*print-pretty*</B
></A
> is <A HREF="26_1_Glossary.html#true"
><EM CLASS="term"
>true</EM
></A
>, <A HREF="f_pprint-indent.html" CLASS="funref"
><B
>pprint-indent</B
></A
> sets the indentation in the innermost dynamically enclosing logical block; otherwise, <A HREF="f_pprint-indent.html" CLASS="funref"
><B
>pprint-indent</B
></A
> has no effect. </P
><P CLASS="j"
><VAR CLASS="param"
>N</VAR
> specifies the indentation in <A HREF="26_1_Glossary.html#em"
><EM CLASS="term"
>ems</EM
></A
>. If <VAR CLASS="param"
>relative-to</VAR
> is <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:block</SPAN
></SPAN
>, the indentation is set to the horizontal position of the first character in the <EM CLASS="term"
>dynamically current logical block</EM
> plus <VAR CLASS="param"
>n</VAR
> <A HREF="26_1_Glossary.html#em"
><EM CLASS="term"
>ems</EM
></A
>. If <VAR CLASS="param"
>relative-to</VAR
> is <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:current</SPAN
></SPAN
>, the indentation is set to the current output position plus <VAR CLASS="param"
>n</VAR
> <A HREF="26_1_Glossary.html#em"
><EM CLASS="term"
>ems</EM
></A
>. (For robustness in the face of variable-width fonts, it is advisable to use <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:current</SPAN
></SPAN
> with an <VAR CLASS="param"
>n</VAR
> of zero whenever possible.) </P
><P CLASS="j"
><VAR CLASS="param"
>N</VAR
> can be negative; however, the total indentation cannot be moved left of the beginning of the line or left of the end of the rightmost per-line prefix &#8212; an attempt to move beyond one of these limits is treated the same as an attempt to move to that limit. Changes in indentation caused by <VAR CLASS="param"
>pprint-indent</VAR
> do not take effect until after the next line break. In addition, in miser mode all calls to <A HREF="f_pprint-indent.html" CLASS="funref"
><B
>pprint-indent</B
></A
> are ignored, forcing the lines corresponding to the logical block to line up under the first character in the block.</P
></DD
><DT
><B
>Exceptional Situations</B
></DT
><DD
><P CLASS="j"
>An error is signaled if <VAR CLASS="param"
>relative-to</VAR
> is any <A HREF="26_1_Glossary.html#object"
><EM CLASS="term"
>object</EM
></A
> other than <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:block</SPAN
></SPAN
> or <SPAN CLASS="kwd"
><SPAN CLASS="cmtt"
>:current</SPAN
></SPAN
>.</P
></DD
><DT
><B
>See Also</B
></DT
><DD
><P CLASS="j"
><A HREF="22_3_Formatted_Output.html#sec_22_3_5_3" CLASS="secref"
><SPAN CLASS="cmr"
>Section</SPAN
> <SPAN CLASS="cmr"
>22.3.5.3</SPAN
> <SPAN CLASS="cmr"
>(Tilde</SPAN
> <SPAN CLASS="cmr"
>I:</SPAN
> <SPAN CLASS="cmr"
>Indent)</SPAN
></A
></P
></DD
></DL
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