From 667010554b30c46e35b9cad62edcfa01e37e1576 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@gmx.de>
Date: Wed, 24 Apr 2013 20:13:18 +0200
Subject: make all the commands agnostic about Rune width. (from sources)

---
 sys/src/cmd/sam/regexp.c | 47 +++++++++++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 22 deletions(-)

(limited to 'sys/src/cmd/sam')

diff --git a/sys/src/cmd/sam/regexp.c b/sys/src/cmd/sam/regexp.c
index 4c655dda3..2bf540636 100644
--- a/sys/src/cmd/sam/regexp.c
+++ b/sys/src/cmd/sam/regexp.c
@@ -9,7 +9,7 @@ typedef struct Inst Inst;
 
 struct Inst
 {
-	long	type;	/* < 0x10000 ==> literal, otherwise action */
+	long	type;	/* <= Runemax ==> literal, otherwise action */
 	union {
 		int rsid;
 		int rsubid;
@@ -46,7 +46,7 @@ struct Ilist
 
 #define	NLIST	127
 
-Ilist	*tl, *nl;	/* This list, next list */
+Ilist	*tl, *nl;		/* This list, next list */
 Ilist	list[2][NLIST+1];	/* +1 for trailing null */
 static	Rangeset sempty;
 
@@ -56,25 +56,28 @@ static	Rangeset sempty;
  *	0x100xx are operators, value == precedence
  *	0x200xx are tokens, i.e. operands for operators
  */
-#define	OPERATOR	0x10000	/* Bitmask of all operators */
-#define	START		0x10000	/* Start, used for marker on stack */
-#define	RBRA		0x10001	/* Right bracket, ) */
-#define	LBRA		0x10002	/* Left bracket, ( */
-#define	OR		0x10003	/* Alternation, | */
-#define	CAT		0x10004	/* Concatentation, implicit operator */
-#define	STAR		0x10005	/* Closure, * */
-#define	PLUS		0x10006	/* a+ == aa* */
-#define	QUEST		0x10007	/* a? == a|nothing, i.e. 0 or 1 a's */
-#define	ANY		0x20000	/* Any character but newline, . */
-#define	NOP		0x20001	/* No operation, internal use only */
-#define	BOL		0x20002	/* Beginning of line, ^ */
-#define	EOL		0x20003	/* End of line, $ */
-#define	CCLASS		0x20004	/* Character class, [] */
-#define	NCCLASS		0x20005	/* Negated character class, [^] */
-#define	END		0x20077	/* Terminate: match found */
-
-#define	ISATOR		0x10000
-#define	ISAND		0x20000
+enum {
+	OPERATOR = Runemask+1,	/* Bitmask of all operators */
+	START	= OPERATOR,	/* Start, used for marker on stack */
+	RBRA,			/* Right bracket, ) */
+	LBRA,			/* Left bracket, ( */
+	OR,			/* Alternation, | */
+	CAT,			/* Concatentation, implicit operator */
+	STAR,			/* Closure, * */
+	PLUS,			/* a+ == aa* */
+	QUEST,			/* a? == a|nothing, i.e. 0 or 1 a's */
+
+	ANY	= OPERATOR<<1,	/* Any character but newline, . */
+	NOP,			/* No operation, internal use only */
+	BOL,			/* Beginning of line, ^ */
+	EOL,			/* End of line, $ */
+	CCLASS,			/* Character class, [] */
+	NCCLASS,		/* Negated character class, [^] */
+	END,			/* Terminate: match found */
+
+	ISATOR	= OPERATOR,
+	ISAND	= OPERATOR<<1,
+};
 
 /*
  * Parser Information
@@ -459,7 +462,7 @@ nextrec(void){
 			exprp++;
 			return '\n';
 		}
-		return *exprp++|0x10000;
+		return *exprp++|(Runemax+1);
 	}
 	return *exprp++;
 }
-- 
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