X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=HACKING;h=666d504e7336b61ef7d26f559e5b192c56fbd9de;hb=22d9cabeb30bdf491308f60528b6c6a442941d07;hp=c2f4825c4f4fa0ef0cff8c3e961ace4a0b9dfe51;hpb=c40e09cece067663d8dd9f0064f73f4485d46c47;p=public-inbox.git

diff --git a/HACKING b/HACKING
index c2f4825c..666d504e 100644
--- a/HACKING
+++ b/HACKING
@@ -40,7 +40,8 @@ the shiny new.
 Avoid relying on compiled modules too much.  Even if it is Free,
 compiled code makes packages more expensive to audit, build,
 distribute and verify.  public-inbox itself will only be implemented
-in scripting languages (currently Perl 5).
+in scripting languages (currently Perl 5) and optional JIT-compiled C
+(via Inline::C)
 
 Performance should be reasonably good for server administrators, too,
 and we will sacrifice features to achieve predictable performance.
@@ -49,3 +50,11 @@ requirements.
 
 See design_www.txt and design_notes.txt in the Documentation/
 directory for design decisions made during development.
+
+Perl notes
+----------
+
+* \w, \s, \d character classes all match Unicode characters;
+  so write out class ranges (e.g "[0-9]") if you only intend to
+  match ASCII.  Do not use the "/a" (ASCII) modifier, that requires
+  Perl 5.14 and we're only depending on 5.10.1 at the moment.