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abcl-contrib: add NAMED-READTABLES

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c.f. <https://github.com/melisgl/named-readtables/issues/10>

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27	<h2> EDITOR-HINTS.NAMED-READTABLES - 0.9</h2>
28
29	<h5>     by Tobias C Rittweiler </h5>
30
31	<font color=red>Repository:</font> <br> <br>
32
33
34	<code>darcs get http://common-lisp.net/project/editor-hints/darcs/named-readtables/</code>
35
36	<br> <br>
37
38	<font color=red>Download:</font> <br> <br>
39
40
41	<a href="http://common-lisp.net/project/editor-hints/releases/named-readtables-0.9.tar.gz">editor-hints.named-readtables-0.9.tar.gz </a><br> <br><h3><a class=none name="contents">Contents</a></h3>
42	<ol>
43	<li> <a href="#what_are_named-readtables?">What are Named-Readtables?</a>
44	<li> <a href="#notes_on_the_api">Notes on the API</a>
45	<li> <a href="#important_api_idiosyncrasies">Important API idiosyncrasies</a>
46	<li> <a href="#preregistered_readtables">Preregistered Readtables</a>
47	<li> <a href="#examples">Examples</a>
48	<li> <a href="#acknowledgements">Acknowledgements</a>
49
50
51	<li><a href="#dictionary">Dictionary</a>
52	<ol>
53	<li><a href="#COPY-NAMED-READTABLE"><code>COPY-NAMED-READTABLE</code></a>
54	<li><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a>
55	<li><a href="#ENSURE-READTABLE"><code>ENSURE-READTABLE</code></a>
56	<li><a href="#FIND-READTABLE"><code>FIND-READTABLE</code></a>
57	<li><a href="#IN-READTABLE"><code>IN-READTABLE</code></a>
58	<li><a href="#LIST-ALL-NAMED-READTABLES"><code>LIST-ALL-NAMED-READTABLES</code></a>
59	<li><a href="#MAKE-READTABLE"><code>MAKE-READTABLE</code></a>
60	<li><a href="#MERGE-READTABLES-INTO"><code>MERGE-READTABLES-INTO</code></a>
61	<li><a href="#NAMED-READTABLE-DESIGNATOR"><code>NAMED-READTABLE-DESIGNATOR</code></a>
62	<li><a href="#READER-MACRO-CONFLICT"><code>READER-MACRO-CONFLICT</code></a>
63	<li><a href="#READTABLE-DOES-ALREADY-EXIST"><code>READTABLE-DOES-ALREADY-EXIST</code></a>
64	<li><a href="#READTABLE-DOES-NOT-EXIST"><code>READTABLE-DOES-NOT-EXIST</code></a>
65	<li><a href="#READTABLE-NAME"><code>READTABLE-NAME</code></a>
66	<li><a href="#REGISTER-READTABLE"><code>REGISTER-READTABLE</code></a>
67	<li><a href="#RENAME-READTABLE"><code>RENAME-READTABLE</code></a>
68	<li><a href="#UNREGISTER-READTABLE"><code>UNREGISTER-READTABLE</code></a>
69
70	</ol>
71	</ol> <br> <br><h3><a class=none name="what_are_named-readtables?">What are Named-Readtables?</a></h3>
72	Named-Readtables is a library that provides a namespace for readtables akin to the <br>     already-existing namespace of packages. In particular:
73	<ul>
74	<li>you can associate readtables with names, and retrieve readtables by names;</li>
75	<li>you can associate source files with readtable names, and be sure that the right readtable is <br> active when compiling/loading the file;</li>
76	<li>similiarly, your development environment now has a chance to automatically determine what <br> readtable should be active while processing source forms on interactive commands. (E.g. think <br> of `C-c C-c' in Slime [yet to be done])</li>
77	</ul>
78	Additionally, it also attempts to become a facility for using readtables in a <u>modular</u> way. In <br>     particular:
79	<ul>
80	<li>it provides a macro to specify the content of a readtable at a glance;</li>
81	<li>it makes it possible to use multiple inheritance between readtables.</li>
82	</ul>
83	<br> <br><h3><a class=none name="notes_on_the_api">Notes on the API</a></h3>
84	The <code>API</code> heavily imitates the <code>API</code> of packages. This has the nice property that any experienced <br>     Common Lisper will take it up without effort.
85	<br><br>
86	<code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/m_defpkg.htm"><code>DEFPACKAGE</code></a></code>
87	<br><br>
88	<code><a href="#IN-READTABLE"><code>IN-READTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/m_in_pkg.htm"><code>IN-PACKAGE</code></a></code>
89	<br><br>
90	<code><a href="#MERGE-READTABLES-INTO"><code>MERGE-READTABLES-INTO</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_use_pk.htm"><code>USE-PACKAGE</code></a></code>
91	<br><br>
92	<code><a href="#MAKE-READTABLE"><code>MAKE-READTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_mk_pkg.htm"><code>MAKE-PACKAGE</code></a></code>
93	<br><br>
94	<code><a href="#UNREGISTER-READTABLE"><code>UNREGISTER-READTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_del_pk.htm"><code>DELETE-PACKAGE</code></a></code>
95	<br><br>
96	<code><a href="#RENAME-READTABLE"><code>RENAME-READTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_rn_pkg.htm"><code>RENAME-PACKAGE</code></a></code>
97	<br><br>
98	<code><a href="#FIND-READTABLE"><code>FIND-READTABLE</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_find_p.htm"><code>FIND-PACKAGE</code></a></code>
99	<br><br>
100	<code><a href="#READTABLE-NAME"><code>READTABLE-NAME</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_pkg_na.htm"><code>PACKAGE-NAME</code></a></code>
101	<br><br>
102	<code><a href="#LIST-ALL-NAMED-READTABLES"><code>LIST-ALL-NAMED-READTABLES</code></a></code> - <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_list_a.htm"><code>LIST-ALL-PACKAGES</code></a></code>
103	<br> <br><h3><a class=none name="important_api_idiosyncrasies">Important API idiosyncrasies</a></h3>
104	There are three major differences between the <code>API</code> of Named-Readtables, and the <code>API</code> of packages.
105	<br><br>
106	<code>1.</code> Readtable names are symbols not strings.
107	<br><br>
108	Time has shown that the fact that packages are named by strings causes severe headache because of <br>                 the potential of package names colliding with each other.
109	<br><br>
110	Hence, readtables are named by symbols lest to make the situation worse than it already is. <br>                 Consequently, readtables named <code>CL-ORACLE:SQL-SYNTAX</code> and <code>CL-MYSQL:SQL-SYNTAX</code> can happily coexist <br>                 next to each other. Or, taken to an extreme, <code>SCHEME:SYNTAX</code> and <code>ELISP:SYNTAX.</code>
111	<br><br>
112	If, for example to duly signify the importance of your cool readtable hack, you really think it <br>                 deserves a global name, you can always resort to keywords.
113	<br><br>
114	<code>2.</code> The inheritance is resolved statically, not dynamically.
115	<br><br>
116	A package that uses another package will have access to all the other package's exported <br>                 symbols, even to those that will be added after its definition. I.e. the inheritance is resolved at <br>                 run-time, that is dynamically.
117	<br><br>
118	Unfortunately, we cannot do the same for readtables in a portable manner.
119	<br><br>
120	Therefore, we do not talk about "using" another readtable but about "merging" <br>                 the other readtable's definition into the readtable we are going to define. I.e. the <br>                 inheritance is resolved once at definition time, that is statically.
121	<br><br>
122	(Such merging can more or less be implemented portably albeit at a certain cost. Most of the time, <br>                 this cost manifests itself at the time a readtable is defined, i.e. once at compile-time, so it may <br>                 not bother you. Nonetheless, we provide extra support for Sbcl, ClozureCL, and AllegroCL at the <br>                 moment. Patches for your implementation of choice are welcome, of course.)
123	<br><br>
124	<code>3.</code> <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> does not have compile-time effects.
125	<br><br>
126	If you define a package via <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/m_defpkg.htm"><code>DEFPACKAGE</code></a>,</code> you can make that package the currently active package for <br>                 the subsequent compilation of the same file via <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/m_in_pkg.htm"><code>IN-PACKAGE</code></a>.</code> The same is, however, not true for <br>                 <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> and <code><a href="#IN-READTABLE"><code>IN-READTABLE</code></a></code> for the following reason:
127	<br><br>
128	It's unlikely that the need for special reader-macros arises for a problem which can be <br>                 solved in just one file. Most often, you're going to define the reader macro functions, and <br>                 set up the corresponding readtable in an extra file.
129	<br><br>
130	If <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> had compile-time effects, you'd have to wrap each definition of a <br>                 reader-macro function in an <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/s_eval_w.htm"><code>EVAL-WHEN</code></a></code> to make its definition available at compile-time. Because <br>                 that's simply not the common case, <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> does not have a compile-time effect.
131	<br><br>
132	If you want to use a readtable within the same file as its definition, wrap the <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> and <br>                 the reader-macro function definitions in an explicit <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/s_eval_w.htm"><code>EVAL-WHEN</code></a>.</code>
133	<br> <br><h3><a class=none name="preregistered_readtables">Preregistered Readtables</a></h3>
134	- <code>NIL,</code> <code>:STANDARD,</code> and <code>:COMMON-LISP</code> designate the <i><a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_s.htm#standard_readtable">standard readtable</a></i>.
135	<br><br>
136	- <code>:MODERN</code> designates a <u>case-preserving</u> <i><a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_s.htm#standard-readtable">standard-readtable</a></i>.
137	<br><br>
138	- <code>:CURRENT</code> designates the <i><a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_c.htm#current_readtable">current readtable</a></i>.
139	<br> <br><h3><a class=none name="examples">Examples</a></h3>
140	<pre>
141	(defreadtable elisp:syntax
142	(:merge :standard)
143	(:macro-char #\? #'elisp::read-character-literal t)
144	(:macro-char #\[ #'elisp::read-vector-literal t)
145	...
146	(:case :preserve))
147
148	(defreadtable scheme:syntax
149	(:merge :standard)
150	(:macro-char #\[ #'(lambda (stream char)
151	(read-delimited-list #\] stream)))
152	(:macro-char #\# :dispatch)
153	(:dispatch-macro-char #\# #\t #'scheme::read-#t)
154	(:dispatch-macro-char #\# #\f #'scheme::read-#f)
155	...
156	(:case :preserve))
157
158	(in-readtable elisp:syntax)
159
160	...
161
162	(in-readtable scheme:syntax)
163
164	...
165	</pre>
166
167	<br> <br><h3><a class=none name="acknowledgements">Acknowledgements</a></h3>
168	Thanks to Robert Goldman for making me want to write this library.
169	<br><br>
170	Thanks to Stephen Compall, Ariel Badichi, David Lichteblau, Bart Botta, David Crawford, and Pascal <br>     Costanza for being early adopters, providing comments and bugfixes.
171	<br> <br>
172	<br> <br><h3><a class=none name="dictionary">Dictionary</a></h3>
173
174
175	<!-- Entry for COPY-NAMED-READTABLE -->
176
177	<p><br>[Function]<br><a class=none name='COPY-NAMED-READTABLE'><b>copy-named-readtable</b> <i>named-readtable</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>named-readtable</i>: <code>(OR
178	READTABLE
179	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
180	<blockquote>
181
182	Like <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_cp_rdt.htm"><code>COPY-READTABLE</code></a></code> but takes a <code><a href="#NAMED-READTABLE-DESIGNATOR"><code>NAMED-READTABLE-DESIGNATOR</code></a></code> as argument.
183
184
185	</blockquote>
186
187	<!-- End of entry for COPY-NAMED-READTABLE -->
188
189
190	<!-- Entry for DEFREADTABLE -->
191
192	<p><br>[Macro]<br><a class=none name='DEFREADTABLE'><b>defreadtable</b> <i>name &body options</i> => <i>result</i></a><br><br>  Description:
193	<blockquote>
194
195	Define a new named readtable, whose name is given by the symbol <i>name</i>. Or, if a readtable is <br> already registered under that name, redefine that one.
196	<br><br>
197	The readtable can be populated using the following <i>options</i>:
198	<br><br>
199	<code>(:MERGE</code> <i>readtable-designators</i>+)
200	<br><br>
201	Merge the readtables designated into the new readtable being defined as per <code><a href="#MERGE-READTABLES-INTO"><code>MERGE-READTABLES-INTO</code></a>.</code>
202	<br><br>
203	If no <code>:MERGE</code> clause is given, an empty readtable is used. See <code><a href="#MAKE-READTABLE"><code>MAKE-READTABLE</code></a>.</code>
204	<br><br>
205	<code>(:FUZE</code> <i>readtable-designators</i>+)
206	<br><br>
207	Like <code>:MERGE</code> except:
208	<br><br>
209	Error conditions of type <code><a href="#READER-MACRO-CONFLICT"><code>READER-MACRO-CONFLICT</code></a></code> that are signaled during the merge operation will <br>             be silently <u>continued</u>. It follows that reader macros in earlier entries will be overwritten by <br>             later ones.
210	<br><br>
211	<code>(:DISPATCH-MACRO-CHAR</code> <i>macro-char</i> <i>sub-char</i> <i>function</i>)
212	<br><br>
213	Define a new sub character <i>sub-char</i> for the dispatching macro character <i>macro-char</i>, <br>             per <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_set__1.htm"><code>SET-DISPATCH-MACRO-CHARACTER</code></a>.</code> You probably have to define <i>macro-char</i> as a dispatching <br>             macro character by the following option first.
214	<br><br>
215	<code>(:MACRO-CHAR</code> <i>macro-char</i> <i>function</i> [<i>non-terminating-p</i>])
216	<br><br>
217	Define a new macro character in the readtable, per <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_set_ma.htm"><code>SET-MACRO-CHARACTER</code></a>.</code> If <i>function</i> is the <br>             keyword <code>:DISPATCH,</code> <i>macro-char</i> is made a dispatching macro character, per <br>             <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_mk_dis.htm"><code>MAKE-DISPATCH-MACRO-CHARACTER</code></a>.</code>
218	<br><br>
219	<code>(:SYNTAX-FROM</code> <i>from-readtable-designator</i> <i>from-char</i> <i>to-char</i>)
220	<br><br>
221	Set the character syntax of <i>to-char</i> in the readtable being defined to the same syntax as <br>             <i>from-char</i> as per <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/f_set_sy.htm"><code>SET-SYNTAX-FROM-CHAR</code></a>.</code>
222	<br><br>
223	<code>(:CASE</code> <i>case-mode</i>)
224	<br><br>
225	Defines the <i><a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_c.htm#case_sensitivity_mode">case sensitivity mode</a></i> of the resulting readtable.
226	<br><br>
227	Any number of option clauses may appear. The options are grouped by their type, but in each group <br> the order the options appeared textually is preserved. The following groups exist and are executed <br> in the following order: <code>:MERGE</code> and <code>:FUZE</code> (one group), <code>:CASE,</code> <code>:MACRO-CHAR</code> and <code>:DISPATCH-MACRO-CHAR</code> <br> (one group), finally <code>:SYNTAX-FROM.</code>
228	<br><br>
229	Notes:
230	<br><br>
231	The readtable is defined at load-time. If you want to have it available at compilation time <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/a__.htm"><code>-</code></a>-</code> say <br>     to use its reader-macros in the same file as its definition <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/a__.htm"><code>-</code></a>-</code> you have to wrap the <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> <br>     form in an explicit <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/s_eval_w.htm"><code>EVAL-WHEN</code></a>.</code>
232	<br><br>
233	On redefinition, the target readtable is made empty first before it's refilled according to <br>     the clauses.
234	<br><br>
235	<code>NIL,</code> <code>:STANDARD,</code> <code>:COMMON-LISP,</code> <code>:MODERN,</code> and <code>:CURRENT</code> are preregistered readtable names.
236
237
238	</blockquote>
239
240	<!-- End of entry for DEFREADTABLE -->
241
242
243	<!-- Entry for ENSURE-READTABLE -->
244
245	<p><br>[Function]<br><a class=none name='ENSURE-READTABLE'><b>ensure-readtable</b> <i>name <tt>&optional</tt> default</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>name</i>: <code>(OR
246	READTABLE
247	SYMBOL)</code></blockquote><blockquote><i>default</i>: <code>(OR
248	READTABLE
249	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
250	<blockquote>
251
252	Looks up the readtable specified by <i>name</i> and returns it if it's found. If it is not <br> found, it registers the readtable designated by <i>default</i> under the name represented by <br> <i>name</i>; or if no default argument is given, it signals an error of type <br> <code><a href="#READTABLE-DOES-NOT-EXIST"><code>READTABLE-DOES-NOT-EXIST</code></a></code> instead.
253
254
255	</blockquote>
256
257	<!-- End of entry for ENSURE-READTABLE -->
258
259
260	<!-- Entry for FIND-READTABLE -->
261
262	<p><br>[Function]<br><a class=none name='FIND-READTABLE'><b>find-readtable</b> <i>name</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>name</i>: <code>(OR
263	READTABLE
264	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>(OR
265	READTABLE
266	NULL)</code></blockquote>  Description:
267	<blockquote>
268
269	Looks for the readtable specified by <i>name</i> and returns it if it is found. Returns <code>NIL</code> <br> otherwise.
270
271
272	</blockquote>
273
274	<!-- End of entry for FIND-READTABLE -->
275
276
277	<!-- Entry for IN-READTABLE -->
278
279	<p><br>[Macro]<br><a class=none name='IN-READTABLE'><b>in-readtable</b> <i>name</i> => <i>result</i></a><br><br>  Description:
280	<blockquote>
281
282	Set <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/v_rdtabl.htm"><code>READTABLE</code></a></code> to the readtable referred to by the symbol <i>name</i>.
283
284
285	</blockquote>
286
287	<!-- End of entry for IN-READTABLE -->
288
289
290	<!-- Entry for LIST-ALL-NAMED-READTABLES -->
291
292	<p><br>[Function]<br><a class=none name='LIST-ALL-NAMED-READTABLES'><b>list-all-named-readtables</b> <i></i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>result</i>: <code>LIST</code></blockquote>  Description:
293	<blockquote>
294
295	Returns a list of all registered readtables. The returned list is guaranteed to be fresh, but may <br> contain duplicates.
296
297
298	</blockquote>
299
300	<!-- End of entry for LIST-ALL-NAMED-READTABLES -->
301
302
303	<!-- Entry for MAKE-READTABLE -->
304
305	<p><br>[Function]<br><a class=none name='MAKE-READTABLE'><b>make-readtable</b> <i><tt>&optional</tt> name <tt>&key</tt> merge</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>name</i>: <code>(OR
306	READTABLE
307	SYMBOL)</code></blockquote><blockquote><i>merge</i>: <code>LIST</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
308	<blockquote>
309
310	Creates and returns a new readtable under the specified <i>name</i>.
311	<br><br>
312	<i>merge</i> takes a list of <code><a href="#NAMED-READTABLE-DESIGNATORS"><code>NAMED-READTABLE-DESIGNATORS</code></a></code> and specifies the readtables the new <br> readtable is created from. (See the <code>:MERGE</code> clause of <code><a href="#DEFREADTABLE"><code>DEFREADTABLE</code></a></code> for details.)
313	<br><br>
314	If <i>merge</i> is <code>NIL,</code> an empty readtable is used instead.
315	<br><br>
316	If <i>name</i> is not given, an anonymous empty readtable is returned.
317	<br><br>
318	Notes:
319	<br><br>
320	An empty readtable is a readtable where each character's syntax is the same as in the <br>     <i><a href="http://www.lispworks.com/documentation/HyperSpec/Body/26_glo_s.htm#standard_readtable">standard readtable</a></i> except that each macro character has been made a constituent. Basically: <br>     whitespace stays whitespace, everything else is constituent.
321
322
323	</blockquote>
324
325	<!-- End of entry for MAKE-READTABLE -->
326
327
328	<!-- Entry for MERGE-READTABLES-INTO -->
329
330	<p><br>[Function]<br><a class=none name='MERGE-READTABLES-INTO'><b>merge-readtables-into</b> <i>result-readtable <tt>&rest</tt> named-readtables</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>result-readtable</i>: <code>(OR
331	READTABLE
332	SYMBOL)</code></blockquote><blockquote><i>named-readtables</i>: <code>(OR
333	READTABLE
334	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
335	<blockquote>
336
337	Copy the contents of each readtable in <i>named-readtables</i> into <i>result-table</i>.
338	<br><br>
339	If a macro character appears in more than one of the readtables, i.e. if a conflict is discovered <br> during the merge, an error of type <code><a href="#READER-MACRO-CONFLICT"><code>READER-MACRO-CONFLICT</code></a></code> is signaled.
340
341
342	</blockquote>
343
344	<!-- End of entry for MERGE-READTABLES-INTO -->
345
346
347	<!-- Entry for NAMED-READTABLE-DESIGNATOR -->
348
349	<p><br>[Type]<br><a class=none name='NAMED-READTABLE-DESIGNATOR'><b>named-readtable-designator</b></a><br><br>  Description:
350	<blockquote>
351
352	Either a symbol or a readtable itself.
353
354
355	</blockquote>
356
357	<!-- End of entry for NAMED-READTABLE-DESIGNATOR -->
358
359
360	<!-- Entry for READER-MACRO-CONFLICT -->
361
362	<p><br>[Condition type]<br><a class=none name='READER-MACRO-CONFLICT'><b>reader-macro-conflict</b></a><br><br>  Description:
363	<blockquote>
364
365	Continuable.
366	<br><br>
367	This condition is signaled during the merge process if a) a reader macro (be it a macro character <br> or the sub character of a dispatch macro character) is both present in the source as well as the <br> target readtable, and b) if and only if the two respective reader macro functions differ.
368
369
370	</blockquote>
371
372	<!-- End of entry for READER-MACRO-CONFLICT -->
373
374
375	<!-- Entry for READTABLE-DOES-ALREADY-EXIST -->
376
377	<p><br>[Condition type]<br><a class=none name='READTABLE-DOES-ALREADY-EXIST'><b>readtable-does-already-exist</b></a><br><br>  Description:
378	<blockquote>
379
380	Continuable.
381
382
383	</blockquote>
384
385	<!-- End of entry for READTABLE-DOES-ALREADY-EXIST -->
386
387
388	<!-- Entry for READTABLE-DOES-NOT-EXIST -->
389
390	<p><br>[Condition type]<br><a class=none name='READTABLE-DOES-NOT-EXIST'><b>readtable-does-not-exist</b></a><br><br>
391	<blockquote>
392
393
394
395	</blockquote>
396
397	<!-- End of entry for READTABLE-DOES-NOT-EXIST -->
398
399
400	<!-- Entry for READTABLE-NAME -->
401
402	<p><br>[Function]<br><a class=none name='READTABLE-NAME'><b>readtable-name</b> <i>named-readtable</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>named-readtable</i>: <code>(OR
403	READTABLE
404	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>SYMBOL</code></blockquote>  Description:
405	<blockquote>
406
407	Returns the name of the readtable designated by <i>named-readtable</i>, or <code>NIL.</code>
408
409
410	</blockquote>
411
412	<!-- End of entry for READTABLE-NAME -->
413
414
415	<!-- Entry for REGISTER-READTABLE -->
416
417	<p><br>[Function]<br><a class=none name='REGISTER-READTABLE'><b>register-readtable</b> <i>name readtable</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>name</i>: <code>SYMBOL</code></blockquote><blockquote><i>readtable</i>: <code>READTABLE</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
418	<blockquote>
419
420	Associate <i>readtable</i> with <i>name</i>. Returns the readtable.
421
422
423	</blockquote>
424
425	<!-- End of entry for REGISTER-READTABLE -->
426
427
428	<!-- Entry for RENAME-READTABLE -->
429
430	<p><br>[Function]<br><a class=none name='RENAME-READTABLE'><b>rename-readtable</b> <i>old-name new-name</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>old-name</i>: <code>(OR
431	READTABLE
432	SYMBOL)</code></blockquote><blockquote><i>new-name</i>: <code>SYMBOL</code></blockquote><blockquote><i>result</i>: <code>READTABLE</code></blockquote>  Description:
433	<blockquote>
434
435	Replaces the associated name of the readtable designated by <i>old-name</i> with <i>new-name</i>. <br> If a readtable is already registered under <i>new-name</i>, an error of type <br> <code><a href="#READTABLE-DOES-ALREADY-EXIST"><code>READTABLE-DOES-ALREADY-EXIST</code></a></code> is signaled.
436
437
438	</blockquote>
439
440	<!-- End of entry for RENAME-READTABLE -->
441
442
443	<!-- Entry for UNREGISTER-READTABLE -->
444
445	<p><br>[Function]<br><a class=none name='UNREGISTER-READTABLE'><b>unregister-readtable</b> <i>named-readtable</i> => <i>result</i></a><br><br>  Argument and Values:<blockquote><i>named-readtable</i>: <code>(OR
446	READTABLE
447	SYMBOL)</code></blockquote><blockquote><i>result</i>: <code>(MEMBER
448	T
449	NIL)</code></blockquote>  Description:
450	<blockquote>
451
452	Remove the association of <i>named-readtable</i>. Returns <code><a href="http://www.lispworks.com/reference/HyperSpec/Body/a_t.htm"><code>T</code></a></code> if successfull, <code>NIL</code> otherwise.
453
454
455	</blockquote>
456
457	<!-- End of entry for UNREGISTER-READTABLE -->
458
459
460	<hr>
461	<p>
462	This documentation was generated on 2009-11-5 from a Lisp image using some home-brewn,
463	duct-taped, <br> evolutionary hacked extension of Edi Weitz'
464	<a href="http://weitz.de/documentation-template/">DOCUMENTATION-TEMPLATE</a>.
465	</p>
466
467	</body>
468	</html>

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