1
0
Fork 0
cl-sites/novaspec.org/cl/v_print-pprint-dispatch.html
2025-02-05 18:52:26 +01:00

227 lines
No EOL
5.3 KiB
HTML

<!DOCTYPE HTML>
<HTML LANG="en-us"
><HEAD
><TITLE
>*print-pprint-dispatch* | Common Lisp Nova Spec</TITLE
><META CHARSET="US-ASCII"
><LINK REL="canonical" HREF="v_print-pprint-dispatch.html"
><LINK REL="next" HREF="v_print-pretty.html" TYPE="text/html" TITLE="*print-pretty*"
><LINK REL="prev" HREF="v_print-miser-width.html" TYPE="text/html" TITLE="*print-miser-width*"
><LINK REL="up" HREF="22_4_Printer_Dictionary.html" TYPE="text/html" TITLE="22.4 Printer Dictionary"
><LINK REL="start" HREF="index.html" TYPE="text/html" TITLE="Common Lisp Nova Spec"
><META NAME="VIEWPORT" CONTENT="width=device-width, initial-scale=1.0"
><LINK REL="STYLESHEET" HREF="dpans.css%3F3909942064.css"
><SCRIPT SRC="dpans.js%3F3909942064"
></SCRIPT
><SCRIPT SRC="apropos.js%3F3909942064"
></SCRIPT
></HEAD
><BODY
><DIV
><DIV CLASS="topnav"
><DIV CLASS="breadcrumb"
><SPAN CLASS="breadcrumb-item"
><A HREF="index.html"
>Common Lisp Nova Spec</A
></SPAN
> <SPAN CLASS="breadcrumb-item"
>&#8594; <A HREF="22_Printer.html"
>22. Printer</A
></SPAN
> <SPAN CLASS="breadcrumb-item"
>&#8594; <A HREF="22_4_Printer_Dictionary.html"
>22.4 Printer Dictionary</A
></SPAN
> <SPAN CLASS="breadcrumb-item"
>&#8594; <A HREF="v_print-pprint-dispatch.html"
>*print-pprint-dispatch*</A
></SPAN
></DIV
><DIV CLASS="apropos"
><DIV CLASS="apropos-io"
><A HREF="v_print-miser-width.html" CLASS="prev"
>&#8592;</A
><SPAN ID="apropos-label"
>Apropos </SPAN
><INPUT ID="apropos" AUTOFOCUS="AUTOFOCUS" PLACEHOLDER="Type here to search" ONINPUT="aproposInput(this);" ONKEYUP="aproposKeyup(event);" ONCHANGE="aproposChange(this);" ONFOCUS="aproposFocus(this);" ONFOCUSOUT="aproposFocusout(this);"
><A HREF="v_print-pretty.html" CLASS="next"
>&#8594;</A
></DIV
><DIV ID="apropos-res"
></DIV
></DIV
></DIV
><DIV CLASS="matter"
><DIV CLASS="com"
><DIV CLASS="begincom"
><HR
><TABLE WIDTH="100%" CELLSPACING="0" CELLPADDING="0"
><TR
><TD ALIGN="LEFT" VALIGN="BASELINE" WIDTH="100%" CLASS="name"
><SPAN CLASS="idx" DATA-KIND="idxref" DATA-TERM="*print-pprint-dispatch*"
></SPAN
><SPAN CLASS="cmsy"
>*</SPAN
><B
>print-pprint-dispatch</B
><SPAN CLASS="cmsy"
>*</SPAN
></TD
><TD ALIGN="RIGHT" VALIGN="BASELINE" WIDTH="0" NOWRAP="NOWRAP" CLASS="ftype"
><I
>Variable</I
></TD
></TR
></TABLE
><HR
></DIV
><UL CLASS="subtoc"
></UL
><DL
><DT
><B
>Value Type</B
></DT
><DD
><P CLASS="j"
>a <A HREF="26_1_Glossary.html#pprint_dispatch_table"
><EM CLASS="term"
>pprint dispatch table</EM
></A
>.</P
></DD
><DT
><B
>Initial Value</B
></DT
><DD
><P CLASS="j"
><A HREF="26_1_Glossary.html#implementation-dependent"
><EM CLASS="term"
>implementation-dependent</EM
></A
>, but the initial entries all use a special class of priorities that have the property that they are less than every priority that can be specified using <A HREF="f_set-pprint-dispatch.html" CLASS="funref"
><B
>set-pprint-dispatch</B
></A
>, so that the initial contents of any entry can be overridden.</P
></DD
><DT
><B
>Description</B
></DT
><DD
><P CLASS="j"
>The <A HREF="26_1_Glossary.html#pprint_dispatch_table"
><EM CLASS="term"
>pprint dispatch table</EM
></A
> which currently controls the <A HREF="26_1_Glossary.html#pretty_printer"
><EM CLASS="term"
>pretty printer</EM
></A
>.</P
></DD
><DT
><B
>See Also</B
></DT
><DD
><P CLASS="j"
><A HREF="v_print-pretty.html" CLASS="varref"
><B
>*print-pretty*</B
></A
>, <A HREF="22_2_The_Lisp_Pretty_Printer.html#sec_22_2_1_4" CLASS="secref"
><SPAN CLASS="cmr"
>Section</SPAN
> <SPAN CLASS="cmr"
>22.2.1.4</SPAN
> <SPAN CLASS="cmr"
>(Pretty</SPAN
> <SPAN CLASS="cmr"
>Print</SPAN
> <SPAN CLASS="cmr"
>Dispatch</SPAN
> <SPAN CLASS="cmr"
>Tables)</SPAN
></A
></P
></DD
><DT
><B
>Notes</B
></DT
><DD
><P CLASS="j"
>The intent is that the initial <A HREF="26_1_Glossary.html#value"
><EM CLASS="term"
>value</EM
></A
> of this <A HREF="26_1_Glossary.html#variable"
><EM CLASS="term"
>variable</EM
></A
> should cause &#8216;traditional&#8217; <A HREF="26_1_Glossary.html#pretty_print"
><EM CLASS="term"
>pretty printing</EM
></A
> of <A HREF="26_1_Glossary.html#code"
><EM CLASS="term"
>code</EM
></A
>. In general, however, you can put a value in <A HREF="v_print-pprint-dispatch.html" CLASS="varref"
><B
>*print-pprint-dispatch*</B
></A
> that makes pretty-printed output look exactly like non-pretty-printed output. Setting <A HREF="v_print-pretty.html" CLASS="varref"
><B
>*print-pretty*</B
></A
> to <A HREF="26_1_Glossary.html#true"
><EM CLASS="term"
>true</EM
></A
> just causes the functions contained in the <A HREF="26_1_Glossary.html#current_pprint_dispatch_table"
><EM CLASS="term"
>current pprint dispatch table</EM
></A
> to have priority over normal <A HREF="f_print-object.html" CLASS="funref"
><B
>print-object</B
></A
> methods; it has no magic way of enforcing that those functions actually produce pretty output. For details, see <A HREF="22_2_The_Lisp_Pretty_Printer.html#sec_22_2_1_4" CLASS="secref"
><SPAN CLASS="cmr"
>Section</SPAN
> <SPAN CLASS="cmr"
>22.2.1.4</SPAN
> <SPAN CLASS="cmr"
>(Pretty</SPAN
> <SPAN CLASS="cmr"
>Print</SPAN
> <SPAN CLASS="cmr"
>Dispatch</SPAN
> <SPAN CLASS="cmr"
>Tables)</SPAN
></A
>.</P
></DD
></DL
></DIV
></DIV
><DIV CLASS="footer"
><DIV CLASS="btmnav"
><A HREF="v_print-miser-width.html" CLASS="prev"
>&#8592;</A
><A HREF="v_print-pretty.html" CLASS="next"
>&#8594;</A
></DIV
><DIV CLASS="trail"
>Conversion to HTML copyright 2023 by Gilbert Baumann</DIV
></DIV
></DIV
><SCRIPT
>domReady();</SCRIPT
></BODY
></HTML
>