clqr-packages-and-symbols.tex

   1 % Copyright (C) 2008, 2009, 2010 Bert Burgemeister
   2 %
   3 % Permission is granted to copy, distribute and/or modify this
   4 % document under the terms of the GNU Free Documentation License,
   5 % Version 1.2 or any later version published by the Free Software
   6 % Foundation; with no Invariant Sections, no Front-Cover Texts and
   7 % no Back-Cover Texts. For details see file COPYING.
   8 %
   9
  10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  11 \section{Packages and Symbols}
  12 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  13
  14 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  15 \subsection{Predicates}
  16 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  17 \begin{LIST}{1cm}
  18
  19   \IT{\arrGOO{(\FU*{SYMBOLP} \VAR{ foo})\\
  20       (\FU*{PACKAGEP} \VAR{ foo})\\
  21       (\FU*{KEYWORDP} \VAR{ foo})}{.}}
  22   {
  23     \retval{\T} if \VAR{foo} is of indicated type.
  24   }
  25
  26 \end{LIST}
  27
  28
  29 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  30 \subsection{Packages}
  31 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  32 \begin{LIST}{1cm}
  33
  34   \IT{\kwd*{:}\VAR{bar}\XOR\kwd*{keyword}\kwd{:}\VAR{bar}}
  35   {
  36     Keyword, evaluates to \retval{:\VAR{bar}}.
  37   }
  38
  39   \IT{\VAR{package}\kwd*{:}\VAR{symbol}}
  40   {
  41     Exported \VAR{symbol} of \VAR{package}.
  42   }
  43
  44   \IT{\VAR{package}\kwd*{::}\VAR{symbol}}
  45   {
  46     Possibly unexported \VAR{symbol} of \VAR{package}.
  47   }
  48
  49   \IT{(\MC*{DEFPACKAGE}\VAR{ foo}
  50     \orGOO{%
  51       \OPn{(\kwd{:nicknames }\OPn{\VAR{nick}})}\\
  52       (\kwd{:documentation }\VAR{string})\\
  53       \OPn{(\kwd{:intern }\OPn{\VAR{interned-symbol}})}\\
  54       \OPn{(\kwd{:use }\OPn{\VAR{used-package}})}\\
  55       \OPn{(\kwd{:import-from }\VAR{pkg } \OPn{\VAR{imported-symbol}})}\\
  56       \OPn{(\kwd{:shadowing-import-from}\VAR{ pkg}\OPn{\VAR{ shd-symbol}})}\\
  57       \OPn{(\kwd{:shadow }\OPn{\VAR{shd-symbol}})}\\
  58       \OPn{(\kwd{:export }\OPn{\VAR{exported-symbol}})}\\
  59       (\kwd{:size }\VAR{int})%
  60     }{\}})}
  61   {
  62     Create or modify \retval{package \VAR{foo}} with
  63     \VAR{interned-symbol}s, symbols from \VAR{used-package}s,
  64     \VAR{imported-symbol}s, and \VAR{shd-symbol}s. Add \VAR{shd-symbol}s
  65     to \VAR{foo}'s shadowing list.
  66   }
  67
  68   \IT{(\FU*{MAKE-PACKAGE} \VAR{foo}
  69     \orGOO{\kwd{:nicknames }(\OPn{\VAR{nick}})\DF{\NIL}\\
  70       \kwd{:use }(\OPn{\VAR{used-package}})}{\}})}
  71   {
  72     Create \retval{package \VAR{foo}}.
  73   }
  74
  75   \IT{(\FU*{RENAME-PACKAGE} \VAR{package} \VAR{new-name}
  76     \Op{\VAR{new-nicknames}\DF{\NIL}})}
  77   {
  78     Rename \VAR{package}. Return \retval{renamed package}.
  79   }
  80
  81   \IT{(\MC*{IN-PACKAGE }\NEV{\VAR{foo}})}
  82   {
  83     Make \retval{package \VAR{foo}} current.
  84   }
  85
  86   \IT{(\xorGOO{\FU*{USE-PACKAGE}\\
  87     \FU*{UNUSE-PACKAGE}}{\}}
  88     \VAR{other-packages}
  89     \Op{\VAR{package}\DF{\V{\A package\A}}})}
  90   {
  91     Make exported symbols of \VAR{other-packages} available in
  92     \VAR{package}, or remove them from \VAR{package},
  93     respectively. Return \retval{\T}.
  94   }
  95
  96   \IT{\arrGOO{%
  97       (\FU*{PACKAGE-USE-LIST } \VAR{package})\\
  98       (\FU*{PACKAGE-USED-BY-LIST } \VAR{package})}{.}}
  99   {
 100   \retval{List of other packages} used by/using \VAR{package}.
 101   }
 102
 103   \IT{(\FU*{DELETE-PACKAGE} \DES{\VAR{package}})}
 104   {
 105     Delete \VAR{package}. Return \retval{\T} if successful.
 106   }
 107
 108   \IT{\V{\A package\A}\DF{\kwd{common-lisp-user}}\qquad\quad}
 109   {\index{*PACKAGE*@\A PACKAGE\A}
 110     The current package.
 111   }
 112
 113   \IT{(\FU*{LIST-ALL-PACKAGES})\qquad\qquad\qquad}
 114   {
 115     \retval{List of registered packages}.
 116   }
 117
 118   \IT{(\FU*{PACKAGE-NAME} \VAR{package})\qquad\quad}
 119   {
 120     \retval{Name of \VAR{package}}.
 121   }
 122
 123   \IT{(\FU*{PACKAGE-NICKNAMES} \VAR{package})}
 124   {
 125     \retval{List of nicknames} of \VAR{package}.
 126   }
 127
 128   \IT{(\FU*{FIND-PACKAGE} \VAR{name})}
 129   {
 130     \retval{Package} with \VAR{name} (case-sensitive).
 131   }
 132
 133   \IT{(\FU*{FIND-ALL-SYMBOLS} \VAR{foo})}
 134   {
 135     \retval{List of symbols} \VAR{foo} from all
 136     registered packages.
 137   }
 138
 139   \IT{(\xorGOO{\FU*{INTERN}\\
 140       \FU*{FIND-SYMBOL}}{\}} \VAR{foo} \Op{\VAR{package}\DF{\V{\A package\A}}})}
 141   {
 142     Intern or find, respectively, symbol \retval{\VAR{foo}} in
 143     \VAR{package}. Second return value is one of
 144     \retvalii{\kwd{:internal}}, \retvalii{\kwd{:external}}, or
 145     \retvalii{\kwd{:inherited}} (or \retvalii{\NIL} if \FU{intern}
 146     created a fresh symbol).
 147   }
 148
 149   \IT{(\FU*{UNINTERN} \VAR{symbol} \Op{\VAR{package}\DF{\V{\A package\A}}})}
 150   {
 151     Remove \VAR{symbol} from \VAR{package}, return \retval{\T} on success.
 152   }
 153
 154   \IT{(\xorGOO{\FU*{IMPORT}\\
 155       \FU*{SHADOWING-IMPORT}}{\}} \VAR{symbols}
 156     \Op{\VAR{package}\DF{\V{\A package\A}}})}
 157   {
 158     Make \VAR{symbols} internal  to \VAR{package}. Return \retval{\T}. In
 159     case of a name conflict signal correctable \kwd{package-error} or shadow
 160     the old symbol, respectively.
 161   }
 162
 163   \IT{(\FU*{SHADOW} \VAR{symbols}
 164     \Op{\VAR{package}\DF{\V{\A package\A}}})}
 165   {
 166     Add \VAR{symbols} to shadowing list of \VAR{package} making equally
 167     named inherited symbols shadowed. Return
 168     \retval{\T}.
 169   }
 170
 171   \IT{(\FU*{PACKAGE-SHADOWING-SYMBOLS} \VAR{package})}
 172   {
 173     \retval{List of shadowing symbols} of \VAR{package}.
 174   }
 175
 176   \IT{(\FU*{EXPORT} \VAR{symbols}
 177     \Op{\VAR{package}\DF{\V{\A package\A}}})}
 178   {
 179     Make \VAR{symbols} external to \VAR{package}. Return \retval{\T}.
 180   }
 181
 182   \IT{(\FU*{UNEXPORT} \VAR{symbols} \Op{\VAR{package}\DF{\V{\A package\A}}})}
 183   {
 184     Revert \VAR{symbols} to internal status. Return \retval{\T}.
 185   }
 186
 187   \IT{(\xorGOO{%
 188       \arrGOO{%
 189         \MC*{DO-SYMBOLS}\\
 190         \MC*{DO-EXTERNAL-SYMBOLS}}{\}}\text{ }
 191       (\NEV{\VAR{var}}\text{ } \OP{\VAR{package}\DF{\V{\A package\A}}\text{ } \Op{\VAR{result}\DF{\NIL}}})\\
 192       \MC*{DO-ALL-SYMBOLS } (\VAR{var } \Op{\VAR{result}\DF{\NIL}})}{\}}
 193     \OPn{(\kwd{declare} \OPn{\NEV{\VAR{decl}}})}
 194     \OPn{\orGOO{\NEV{\VAR{tag}}\\
 195       \VAR{form}}{\}}})}
 196   {
 197     Evaluate \SO{tagbody}-like body with \VAR{var} successively bound to every
 198     symbol from \VAR{package}, to every external symbol from
 199     \VAR{package}, or to every symbol from all registered packages,
 200     respectively. Return \retval{values of \VAR{result}}.  Implicitly,
 201     the whole form is a \SO{block} named \NIL.
 202   }
 203
 204   \IT{(\MC*{WITH-PACKAGE-ITERATOR} (\VAR{foo} \VAR{packages}
 205     \Op{\kwd{:internal}\XOR\kwd{:external}\XOR\kwd{:inherited}})
 206     \OPn{(\kwd{declare} \OPn{\NEV{\VAR{decl}}})} \PROGN{\VAR{form}})}
 207   {
 208     Return \retval{values of \VAR{form}s}. In \VAR{form}s, successive
 209     invocations of  (\VAR{foo}) return: \T\ if a symbol is returned;
 210     a symbol from \VAR{packages}; accessibility
 211     (\kwd{:internal}, \kwd{:external}, or \kwd{:inherited}); and the
 212     package the symbol belongs to.
 213   }
 214
 215   \IT{(\FU*{REQUIRE} \VAR{module} \Op{\VAR{paths}\DF{\NIL}})}
 216   {
 217     If not in \V{\A modules\A}, try \VAR{paths} to load
 218     \VAR{module} from. Signal \kwd{error} if unsuccessful. Deprecated.
 219   }
 220
 221   \IT{(\FU*{PROVIDE} \VAR{module})}
 222   {
 223     If not already there, add \VAR{module} to
 224     \V{\A modules\A}. Deprecated.
 225   }
 226
 227   \IT{\V{\A modules\A}}
 228   {\index{*MODULES*@\A MODULES\A}
 229     List of names of loaded modules.
 230   }
 231
 232 \end{LIST}
 233
 234
 235 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 236 \subsection{Symbols}
 237 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 238 A \kwd*{symbol} has the attributes \VAR{name}, home \kwd{package}, property
 239 list, and optionally value (of global constant or variable \VAR{name}) and
 240 function (\kwd{function}, macro, or special operator \VAR{name}).
 241
 242 \begin{LIST}{1cm}
 243
 244   \IT{(\FU*{MAKE-SYMBOL} \VAR{name})}
 245   {
 246     Make fresh, uninterned \retval{symbol \VAR{name}}.
 247   }
 248
 249   \IT{(\FU*{GENSYM} \Op{\VAR{s}\DF{\LIT{G}}})}
 250   {
 251     Return fresh, uninterned symbol \retval{\kwd{\#:}\VAR{s}\VAR{n}}
 252     with \VAR{n} from \V{\A gensym-counter\A}. Increment \V{\A
 253       gensym-counter\A}.%
 254     \index{*GENSYM-COUNTER*@\A GENSYM-COUNTER\A}
 255   }
 256
 257   \IT{(\FU*{GENTEMP} \OP{\VAR{prefix}\DF{\LIT{T}}
 258       \Op{\VAR{package}\DF{\V{\A package\A}}}})}
 259   {
 260     Intern fresh \retval{symbol} in \retval{package}. Deprecated.
 261   }
 262
 263   \IT{(\FU*{COPY-SYMBOL} \VAR{symbol} \Op{\VAR{props}\DF{\NIL}})}
 264   {
 265     Return uninterned \retval{copy of \VAR{symbol}}. If \VAR{props} is
 266     \T, give copy the same value, function and property list.
 267   }
 268
 269   \IT{\arrGOO{%
 270       (\FU*{SYMBOL-NAME} \VAR{ symbol})\\
 271       (\FU*{SYMBOL-PACKAGE} \VAR{ symbol})\\
 272       (\FU*{SYMBOL-PLIST} \VAR{ symbol})\\
 273       (\FU*{SYMBOL-VALUE} \VAR{ symbol})\\
 274       (\FU*{SYMBOL-FUNCTION} \VAR{ symbol})}{.}}
 275   {
 276   \retval{Name}, \retval{package}, \retval{property list},
 277   \retval{value}, or \retval{function}, respectively,
 278   of \VAR{symbol}. \kwd{setf}able.
 279   }
 280
 281   \IT{(\xorGOO{%
 282       \GFU*{DOCUMENTATION}\\
 283       (\kwd{SETF } \GFU{DOCUMENTATION})\VAR{ new-doc}}{\}}
 284     \VAR{foo}
 285     \Goo{\kwd{'variable}%
 286       \XOR\kwd{'function}%
 287       \XOR\kwd{'compiler-macro}%
 288       \XOR\kwd{'method-combination}%
 289       \XOR\kwd{'structure}%
 290       \XOR\kwd{'type}%
 291       \XOR\kwd{'setf}%
 292       \XOR\T})}
 293   {\index{VARIABLE}\index{FUNCTION}\index{COMPILER-MACRO}\index{METHOD-COMBINATION}\index{STRUCTURE}\index{TYPE}\index{SETF}
 294     Get/set \retval{documentation string} of \VAR{foo} of given
 295     type.
 296   }
 297
 298   \IT{\CNS*{T}}
 299   {
 300     Truth; the supertype of every type including \kwd{t}; the
 301     superclass of every class except \kwd{t}; \V{\A terminal-io\A}.
 302   }
 303
 304   \IT{\CNS*{NIL}\XOR{\CNS*{()}}}
 305   {
 306     Falsity; the empty list; the empty type, subtype of every type;
 307     \V{\A standard-input\A}; \V{\A standard-output\A}; the global
 308     environment.
 309   }
 310
 311 \end{LIST}
 312
 313
 314 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 315 \subsection[Std Packages]{Standard Packages}
 316 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 317 \begin{LIST}{1cm}
 318
 319   \IT{\kwd*{COMMON-LISP}\XOR\kwd*{CL}}
 320   {
 321     Exports the defined names of Common Lisp except for those in the
 322     \kwd{keyword} package.
 323   }
 324
 325   \IT{\kwd*{COMMON-LISP-USER}\XOR\kwd*{CL-USER}}
 326   {
 327     Current package after startup; uses package \kwd{common-lisp}.
 328   }
 329
 330   \IT{\kwd*{KEYWORD}}
 331   {
 332     Contains symbols which are defined to be of type \kwd{KEYWORD}.
 333   }
 334
 335 \end{LIST}
 336
 337 %%% Local Variables:
 338 %%% mode: latex
 339 %%% TeX-master: "clqr"
 340 %%% End: