Define a PL_infix_plugin hook, of a similar style to PL_keyword_plugin

Runs for identifier-named custom infix operators and sequences of
non-identifier symbol characters.

Defines multiple precedence levels for custom infix operators that fit
alongside exponentiation, multiplication, addition, or relational
comparision operators, as well as a "high" and "low" at either end.

1 files changed, 48 insertions, 42 deletions

diff --git a/perly.h b/perly.h
index 29826de799..60fcf6d891 100644
--- a/perly.h
+++ b/perly.h
@@ -127,47 +127,53 @@ extern int yydebug;
     FUNC = 326,
     UNIOP = 327,
     LSTOP = 328,
-    MULOP = 329,
-    ADDOP = 330,
-    DOLSHARP = 331,
-    HASHBRACK = 332,
-    NOAMP = 333,
-    COLONATTR = 334,
-    FORMLBRACK = 335,
-    FORMRBRACK = 336,
-    SUBLEXSTART = 337,
-    SUBLEXEND = 338,
-    PREC_LOW = 339,
-    OROP = 340,
-    ANDOP = 341,
-    NOTOP = 342,
-    ASSIGNOP = 343,
-    PERLY_QUESTION_MARK = 344,
-    PERLY_COLON = 345,
-    OROR = 346,
-    DORDOR = 347,
-    ANDAND = 348,
-    BITOROP = 349,
-    BITANDOP = 350,
-    CHEQOP = 351,
-    NCEQOP = 352,
-    CHRELOP = 353,
-    NCRELOP = 354,
-    SHIFTOP = 355,
-    MATCHOP = 356,
-    PERLY_EXCLAMATION_MARK = 357,
-    PERLY_TILDE = 358,
-    UMINUS = 359,
-    REFGEN = 360,
-    POWOP = 361,
-    PREINC = 362,
-    PREDEC = 363,
-    POSTINC = 364,
-    POSTDEC = 365,
-    POSTJOIN = 366,
-    ARROW = 367,
-    PERLY_PAREN_CLOSE = 368,
-    PERLY_PAREN_OPEN = 369
+    POWOP = 329,
+    MULOP = 330,
+    ADDOP = 331,
+    DOLSHARP = 332,
+    HASHBRACK = 333,
+    NOAMP = 334,
+    COLONATTR = 335,
+    FORMLBRACK = 336,
+    FORMRBRACK = 337,
+    SUBLEXSTART = 338,
+    SUBLEXEND = 339,
+    PLUGLOWOP = 340,
+    PLUGRELOP = 341,
+    PLUGADDOP = 342,
+    PLUGMULOP = 343,
+    PLUGPOWOP = 344,
+    PLUGHIGHOP = 345,
+    PREC_LOW = 346,
+    OROP = 347,
+    ANDOP = 348,
+    NOTOP = 349,
+    ASSIGNOP = 350,
+    PERLY_QUESTION_MARK = 351,
+    PERLY_COLON = 352,
+    OROR = 353,
+    DORDOR = 354,
+    ANDAND = 355,
+    BITOROP = 356,
+    BITANDOP = 357,
+    CHEQOP = 358,
+    NCEQOP = 359,
+    CHRELOP = 360,
+    NCRELOP = 361,
+    SHIFTOP = 362,
+    MATCHOP = 363,
+    PERLY_EXCLAMATION_MARK = 364,
+    PERLY_TILDE = 365,
+    UMINUS = 366,
+    REFGEN = 367,
+    PREINC = 368,
+    PREDEC = 369,
+    POSTINC = 370,
+    POSTDEC = 371,
+    POSTJOIN = 372,
+    ARROW = 373,
+    PERLY_PAREN_CLOSE = 374,
+    PERLY_PAREN_OPEN = 375
   };
 #endif
 
@@ -220,6 +226,6 @@ int yyparse (void);
 
 
 /* Generated from:
- * d3f87734f869a9179fa48a601c04af8339f2360e854d5e6f2e8107a579d753a1 perly.y
+ * 21f50be92bd623859b76b35d4165bcd0fbe33785929bfc0a6a522d266e86de40 perly.y
  * acf1cbfd2545faeaaa58b1cf0cf9d7f98b5be0752eb7a54528ef904a9e2e1ca7 regen_perly.pl
  * ex: set ro: */