/usr/share/doc/swi-prolog-doc/Manual/libpl.html is in swi-prolog-doc 5.6.59-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
<TITLE>SWI-Prolog 5.6.59 Reference Manual</TITLE><LINK REL=home HREF="index.html">
<LINK REL=contents HREF="Contents.html">
<LINK REL=index HREF="DocIndex.html">
<LINK REL=previous HREF="runenv.html">
<LINK REL=next HREF="aggregate.html">
<STYLE type="text/css">
/* Style sheet for SWI-Prolog latex2html
*/
dd.defbody
{ margin-bottom: 1em;
}
dt.pubdef
{ background-color: #c5e1ff;
}
pre.code
{ margin-left: 1.5em;
margin-right: 1.5em;
border: 1px dotted;
padding-top: 5px;
padding-left: 5px;
padding-bottom: 5px;
background-color: #f8f8f8;
}
div.navigate
{ text-align: center;
background-color: #f0f0f0;
border: 1px dotted;
padding: 5px;
}
div.title
{ text-align: center;
padding-bottom: 1em;
font-size: 200%;
font-weight: bold;
}
div.author
{ text-align: center;
font-style: italic;
}
div.abstract
{ margin-top: 2em;
background-color: #f0f0f0;
border: 1px dotted;
padding: 5px;
margin-left: 10%; margin-right:10%;
}
div.abstract-title
{ text-align: center;
padding: 5px;
font-size: 120%;
font-weight: bold;
}
div.toc-h1
{ font-size: 200%;
font-weight: bold;
}
div.toc-h2
{ font-size: 120%;
font-weight: bold;
margin-left: 2em;
}
div.toc-h3
{ font-size: 100%;
font-weight: bold;
margin-left: 4em;
}
div.toc-h4
{ font-size: 100%;
margin-left: 6em;
}
span.sec-nr
{
}
span.sec-title
{
}
span.pred-ext
{ font-weight: bold;
}
span.pred-tag
{ float: right;
font-size: 80%;
font-style: italic;
color: #202020;
}
/* Footnotes */
sup.fn { color: blue; text-decoration: underline; }
span.fn-text { display: none; }
sup.fn span {display: none;}
sup:hover span
{ display: block !important;
position: absolute; top: auto; left: auto; width: 80%;
color: #000; background: white;
border: 2px solid;
padding: 5px; margin: 10px; z-index: 100;
font-size: smaller;
}
</STYLE>
</HEAD>
<BODY BGCOLOR="white">
<DIV class="navigate"><A class="nav" href="index.html"><IMG SRC="home.gif" BORDER=0 ALT="Home"></A>
<A class="nav" href="Contents.html"><IMG SRC="index.gif" BORDER=0 ALT="Contents"></A>
<A class="nav" href="DocIndex.html"><IMG SRC="yellow_pages.gif" BORDER=0 ALT="Index"></A>
<A class="nav" href="runenv.html"><IMG SRC="prev.gif" BORDER=0 ALT="Previous"></A>
<A class="nav" href="aggregate.html"><IMG SRC="next.gif" BORDER=0 ALT="Next"></A>
</DIV>
<H1><A NAME="sec:A"><SPAN class="sec-nr">A</SPAN> <SPAN class="sec-title">The
SWI-Prolog library</SPAN></A></H1>
<A NAME="sec:libpl"></A>
<P>This chapter documents the SWI-Prolog library. As SWI-Prolog provides
auto-loading, there is little difference between library predicates and
built-in predicates. Part of the library is therefore documented in the
rest of the manual. Library predicates differ from built-in predicates
in the following ways.
<P>
<UL>
<LI>User-definition of a built-in leads to a permission-error, while
using the name of a library predicate is allowed.
<P>
<LI>If autoloading is disabled explicitely or because trapping unknown
predicates is disabled (see <A NAME="idx:unknown2:1453"></A><A class="pred" href="debugger.html#unknown/2">unknown/2</A>
and
<A NAME="idx:currentprologflag2:1454"></A><A class="pred" href="flags.html#current_prolog_flag/2">current_prolog_flag/2</A>),
library predicates must be loaded explicitely.
<P>
<LI>Using libraries reduce the footprint of applications that don't need
them.
</UL>
<BLOCKQUOTE><EM>The documentation of the library is just started.
Material from the standard packages should be moved here, some material
from other parts of the manual should be moved too and various libraries
are not documented at all.
</EM></BLOCKQUOTE>
<P>
<HR>
<CENTER>
<H2>Section Index</H2>
</CENTER>
<HR>
<DIV class="toc">
<DIV class="toc-h2"><A class="sec" href="aggregate.html"><SPAN class="sec-nr">A.1</SPAN> <SPAN class="sec-title">aggregate.pl
-- Aggregation operators on backtrackable predicates</SPAN></A></DIV>
<DIV class="toc-h4"><A class="sec" href="aggregate.html#sec:A.1.1"><SPAN class="sec-nr">A.1.1</SPAN> <SPAN class="sec-title">Acknowledgements</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="apply.html"><SPAN class="sec-nr">A.2</SPAN> <SPAN class="sec-title">apply.pl
-- Apply predicates on a list</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="assoc.html"><SPAN class="sec-nr">A.3</SPAN> <SPAN class="sec-title">library(
assoc ): Association lists</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="broadcast.html"><SPAN class="sec-nr">A.4</SPAN> <SPAN class="sec-title">library(
broadcast ): Broadcast and receive event notifications</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="check.html"><SPAN class="sec-nr">A.5</SPAN> <SPAN class="sec-title">library(
check ): Elementary completeness checks</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="clpclp_distinct.html"><SPAN class="sec-nr">A.6</SPAN> <SPAN class="sec-title">library(
clp/clp_distinct ): Weak arc consistent `all_distinct' constraint</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpclp_distinct.html#sec:A.6.1"><SPAN class="sec-nr">A.6.1</SPAN> <SPAN class="sec-title">Example
1</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpclp_distinct.html#sec:A.6.2"><SPAN class="sec-nr">A.6.2</SPAN> <SPAN class="sec-title">Example
2</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpclp_distinct.html#sec:A.6.3"><SPAN class="sec-nr">A.6.3</SPAN> <SPAN class="sec-title">Example
3</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="clpfd.html"><SPAN class="sec-nr">A.7</SPAN> <SPAN class="sec-title">clpfd.pl
-- Constraint Logic Programming over Finite Domains</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="clpqr.html"><SPAN class="sec-nr">A.8</SPAN> <SPAN class="sec-title">library(
clpqr ): Constraint Logic Programming over Rationals and Reals</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpqr.html#sec:A.8.1"><SPAN class="sec-nr">A.8.1</SPAN> <SPAN class="sec-title">Solver
predicates</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpqr.html#sec:A.8.2"><SPAN class="sec-nr">A.8.2</SPAN> <SPAN class="sec-title">Syntax
of the predicate arguments</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpqr.html#sec:A.8.3"><SPAN class="sec-nr">A.8.3</SPAN> <SPAN class="sec-title">Use
of unification</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="clpqr.html#sec:A.8.4"><SPAN class="sec-nr">A.8.4</SPAN> <SPAN class="sec-title">Non-linear
constraints</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="debug.html"><SPAN class="sec-nr">A.9</SPAN> <SPAN class="sec-title">library(
debug ): Some reusable code to help debugging applications</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="gensym.html"><SPAN class="sec-nr">A.10</SPAN> <SPAN class="sec-title">library(
gensym ): Generate unique identifiers</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="lists.html"><SPAN class="sec-nr">A.11</SPAN> <SPAN class="sec-title">library(
lists ): List Manipulation</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="lists.html#sec:A.11.1"><SPAN class="sec-nr">A.11.1</SPAN> <SPAN class="sec-title">Set
Manipulation</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="nbset.html"><SPAN class="sec-nr">A.12</SPAN> <SPAN class="sec-title">library(
nbset ): Non-backtrackable set</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="www_browser.html"><SPAN class="sec-nr">A.13</SPAN> <SPAN class="sec-title">library(
www_browser ): Activating your Web-browser</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="option.html"><SPAN class="sec-nr">A.14</SPAN> <SPAN class="sec-title">option.pl
-- Option list processing</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="ordsets.html"><SPAN class="sec-nr">A.15</SPAN> <SPAN class="sec-title">library(
ordsets ): Ordered Set Manipulation</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="pairs.html"><SPAN class="sec-nr">A.16</SPAN> <SPAN class="sec-title">pairs.pl
-- Operations on key-value lists</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="pio.html"><SPAN class="sec-nr">A.17</SPAN> <SPAN class="sec-title">library(
pio ): Pure I/O</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="pio.html#sec:A.17.1"><SPAN class="sec-nr">A.17.1</SPAN> <SPAN class="sec-title">pure_input.pl
-- Pure Input from files</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="prologxref.html"><SPAN class="sec-nr">A.18</SPAN> <SPAN class="sec-title">library(
prologxref ): Cross-reference data collection library</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="prologxref.html#sec:A.18.1"><SPAN class="sec-nr">A.18.1</SPAN> <SPAN class="sec-title">Extending
the library</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="readutil.html"><SPAN class="sec-nr">A.19</SPAN> <SPAN class="sec-title">library(
readutil ): Reading lines, streams and files</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="record.html"><SPAN class="sec-nr">A.20</SPAN> <SPAN class="sec-title">library(
record ): Access named fields in a term</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="registry.html"><SPAN class="sec-nr">A.21</SPAN> <SPAN class="sec-title">library(
registry ): Manipulating the Windows registry</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="simplex.html"><SPAN class="sec-nr">A.22</SPAN> <SPAN class="sec-title">library(
simplex ): Solve linear programming problems</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="simplex.html#sec:A.22.1"><SPAN class="sec-nr">A.22.1</SPAN> <SPAN class="sec-title">Example
1</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="simplex.html#sec:A.22.2"><SPAN class="sec-nr">A.22.2</SPAN> <SPAN class="sec-title">Example
2</SPAN></A></DIV>
<DIV class="toc-h3"><A class="sec" href="simplex.html#sec:A.22.3"><SPAN class="sec-nr">A.22.3</SPAN> <SPAN class="sec-title">Example
3</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="threadpool.html"><SPAN class="sec-nr">A.23</SPAN> <SPAN class="sec-title">thread_pool.pl
-- Resource bounded thread management</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="ugraphs.html"><SPAN class="sec-nr">A.24</SPAN> <SPAN class="sec-title">library(
ugraphs ): Unweighted Graphs</SPAN></A></DIV>
<DIV class="toc-h2"><A class="sec" href="url.html"><SPAN class="sec-nr">A.25</SPAN> <SPAN class="sec-title">url.pl
-- Analysing and constructing URL</SPAN></A></DIV>
</DIV>
</BODY></HTML>
|