X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/runlisp/blobdiff_plain/bc040e8027e121781f7f6a8ac1da2c3156a861bf..5910232a336e0fa2c32bb1a00c8b69e54995d863:/README.org

diff --git a/README.org b/README.org
index fe14cd7..62f5216 100644
--- a/README.org
+++ b/README.org
@@ -25,7 +25,8 @@ configuration file.  Of course, there's a benefit to having a collection
 of high-quality configuration runes curated centrally, so I'm happy to
 accept submissions in support of any free[fn:free] Lisp implementations.
 
-[fn:free] Here I mean free as in freedom.
+[fn:free] Here I mean `free' as in freedom: see
+https://www.fsf.org/about/what-is-free-software.
 
 
 * Writing scripts in Common Lisp
@@ -69,6 +70,13 @@ in the ~-L~ option, separated by commas:
 :                          #-(or sbcl ccl) "an unexpected"
 :                          " Common Lisp!~%"))
 
+It is not an error to include the name of an unrecognized Lisp system in
+the ~-L~ option: such names are simply ignored.  This allows a script to
+declare support for unusual or locally installed Lisp systems without
+compromising its portability to sites where such systems are unknown, or
+which are still running older versions of ~runlisp~ which haven't been
+updated with the necessary configuration for those systems.
+
 ** Embedded options
 
 If your script requires features of particular Lisp implementations
@@ -114,7 +122,7 @@ For example:
 
   + The prevailing Unix standard input, output, and error files are
     available through the Lisp ~*standard-input*~, ~*standard-output*~,
-    and ~*error-ouptut*~ streams, respectively.  (This is, alas, not a
+    and ~*error-output*~ streams, respectively.  (This is, alas, not a
     foregone conclusion.)
 
   + The keyword ~:runlisp-script~ is added to the ~*features*~ list.
@@ -169,7 +177,7 @@ prints values as if by ~prin1~.  For example,
 
 : $ runlisp -p '"Hello, world!"'
 : Hello, world!
-: runlisp -d '"Hello, world!"'
+: $ runlisp -d '"Hello, world!"'
 : "Hello, world!"
 
 In addition to evaluating forms with ~-e~, and printing their values
@@ -218,7 +226,7 @@ The ~runlisp~ program looks for configuration in a number of places.
     All of the files in this directory named ~SOMETHING.conf~ are read,
     in increasing lexicographical order by name.  The package comes with
     a file ~0base.conf~ intended to be read first, so that it can be
-    overridden if necessar.  This sets up basic definitions, and defines
+    overridden if necessary.  This sets up basic definitions, and defines
     the necessary runes for those Lisp implementations which are
     supported `out of the box'.  New Lisp packages might come with
     additional files to drop into this directory.
@@ -234,7 +242,7 @@ The ~runlisp~ program looks for configuration in a number of places.
     directories to add support for privately installed Lisp systems, or
     to override settings made by earlier configuration files.
 
-But configuration files generally look like =.ini=-style files.  A line
+Configuration files generally look like =.ini=-style files.  A line
 beginning with a semicolon ~;~ is a comment and is ignored.  Most lines
 are assignments, which look like
 #+BEGIN_QUOTE
@@ -243,7 +251,7 @@ are assignments, which look like
 and assignments are split into sections by section headers in square
 brackets:
 #+BEGIN_QUOTE
-~[~​/section/​~]~
+~[~\relax{}/section/\relax{}~]~
 #+END_QUOTE
 The details of the configuration syntax are complicated, and explained
 in the *runlisp.conf* manpage.
@@ -252,7 +260,7 @@ Configuration options can also be set on the command line, though the
 effects are subtly different.  Again, see the manual pages for details.
 
 [fn:xdg-config] More properly, in ~$XDG_CONFIG_HOME/runlisp.conf~, if
-you set that.
+you set that variable.
 
 
 ** Deciding which Lisp implementation to use
@@ -321,7 +329,9 @@ Lisp.  (SBCL's command-line interface is well thought-out, so this is an
 ideal opportunity to explain how ~runlisp~ configuration works, without
 getting bogged down in the details of fighting less amenable Lisps.)
 
-The provided ~0base.conf~ file defines SBCL as follows.
+The provided ~0base.conf~ file used to define SBCL as follows.  (The
+real version now contains a kludge for old versions, which needn't
+concern us here.)
 
 : [sbcl]
 : 
@@ -564,7 +574,7 @@ impossible to access.
 : NIL
 
 As another example, Armed Bear Common Lisp doesn't seem to believe in
-the stderr stream: when it starts up, ~*error-ouptut*~ is bound to the
+the stderr stream: when it starts up, ~*error-output*~ is bound to the
 standard output, just like ~*standard-output*~.  Also, ~cl-launch~
 loading ASDF causes a huge number of ~style-warning~ messages to be
 written to stdout, making ABCL pretty much useless for writing filter
@@ -613,5 +623,12 @@ supports.  If you want your scripts to be able to run on other Lisps,
 then ~cl-launch~ is the way to do that.  Of course, I welcome patches to
 help ~runlisp~ support other free Lisp implementations.  ~cl-launch~
 also supports proprietary Lisps: I have very little interest in these,
-so if you want to run scripts using Allegro or LispWorks then
-~cl-launch~ is your only choice.
+so if you want to run scripts using Allegro or LispWorks then your only
+options are to maintain your own ~runlisp~ configuration for these
+systems or to use ~cl-launch~.
+
+* COMMENT Emacs cruft
+
+# LocalWords: abcl Almquist argv ATTR Attr BST clisp CLisp's Clozure CMU ecl
+# LocalWords: env fn ini interp launchrc lua nbsp noinform precompiled prin
+# LocalWords: princ sb SBCL's sed SYSCONFDIR sysinit TBLFM tbp tikz xdg XPS