tacme, sam: fix regexp code for bigger Runemax - plan9port - [fork] Plan 9 from user space
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---
DIR commit 36d9b90c56e939244b7081b575dc51c2afddff93
DIR parent 75a851e927dd7f8e562b0fd35490783b44966c9f
HTML Author: Russ Cox <rsc@swtch.com>
Date: Wed, 14 Jul 2010 11:10:59 -0700
acme, sam: fix regexp code for bigger Runemax
R=r
http://codereview.appspot.com/1765042
Diffstat:
M src/cmd/acme/regx.c | 50 ++++++++++++++++---------------
M src/cmd/sam/regexp.c | 50 ++++++++++++++++---------------
2 files changed, 52 insertions(+), 48 deletions(-)
---
DIR diff --git a/src/cmd/acme/regx.c b/src/cmd/acme/regx.c
t@@ -20,7 +20,7 @@ Rune *lastregexp;
typedef struct Inst Inst;
struct Inst
{
- uint type; /* < 0x10000 ==> literal, otherwise action */
+ uint type; /* < OPERATOR ==> literal, otherwise action */
union {
int sid;
int subid;
t@@ -58,28 +58,30 @@ static Rangeset sempty;
/*
* Actions and Tokens
*
- * 0x100xx are operators, value == precedence
- * 0x200xx are tokens, i.e. operands for operators
+ * 0x10000xx are operators, value == precedence
+ * 0x20000xx 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
+#define OPERATOR 0x1000000 /* Bit set in all operators */
+#define START (OPERATOR+0) /* Start, used for marker on stack */
+#define RBRA (OPERATOR+1) /* Right bracket, ) */
+#define LBRA (OPERATOR+2) /* Left bracket, ( */
+#define OR (OPERATOR+3) /* Alternation, | */
+#define CAT (OPERATOR+4) /* Concatentation, implicit operator */
+#define STAR (OPERATOR+5) /* Closure, * */
+#define PLUS (OPERATOR+6) /* a+ == aa* */
+#define QUEST (OPERATOR+7) /* a? == a|nothing, i.e. 0 or 1 a's */
+#define ANY 0x2000000 /* Any character but newline, . */
+#define NOP (ANY+1) /* No operation, internal use only */
+#define BOL (ANY+2) /* Beginning of line, ^ */
+#define EOL (ANY+3) /* End of line, $ */
+#define CCLASS (ANY+4) /* Character class, [] */
+#define NCCLASS (ANY+5) /* Negated character class, [^] */
+#define END (ANY+0x77) /* Terminate: match found */
+
+#define ISATOR OPERATOR
+#define ISAND ANY
+
+#define QUOTED 0x4000000 /* Bit set for \-ed lex characters */
/*
* Parser Information
t@@ -453,7 +455,7 @@ nextrec(void)
exprp++;
return '\n';
}
- return *exprp++|0x10000;
+ return *exprp++|QUOTED;
}
return *exprp++;
}
t@@ -493,7 +495,7 @@ bldcclass(void)
classp[n+2] = c2;
n += 3;
}else
- classp[n++] = c1;
+ classp[n++] = c1 & ~QUOTED;
}
classp[n] = 0;
if(nclass == Nclass){
DIR diff --git a/src/cmd/sam/regexp.c b/src/cmd/sam/regexp.c
t@@ -9,7 +9,7 @@ typedef struct Inst Inst;
struct Inst
{
- long type; /* < 0x10000 ==> literal, otherwise action */
+ long type; /* < OPERATOR ==> literal, otherwise action */
union {
int rsid;
int rsubid;
t@@ -53,28 +53,30 @@ static Rangeset sempty;
/*
* Actions and Tokens
*
- * 0x100xx are operators, value == precedence
- * 0x200xx are tokens, i.e. operands for operators
+ * 0x10000xx are operators, value == precedence
+ * 0x20000xx 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
+#define OPERATOR 0x1000000 /* Bit set in all operators */
+#define START (OPERATOR+0) /* Start, used for marker on stack */
+#define RBRA (OPERATOR+1) /* Right bracket, ) */
+#define LBRA (OPERATOR+2) /* Left bracket, ( */
+#define OR (OPERATOR+3) /* Alternation, | */
+#define CAT (OPERATOR+4) /* Concatentation, implicit operator */
+#define STAR (OPERATOR+5) /* Closure, * */
+#define PLUS (OPERATOR+6) /* a+ == aa* */
+#define QUEST (OPERATOR+7) /* a? == a|nothing, i.e. 0 or 1 a's */
+#define ANY 0x2000000 /* Any character but newline, . */
+#define NOP (ANY+1) /* No operation, internal use only */
+#define BOL (ANY+2) /* Beginning of line, ^ */
+#define EOL (ANY+3) /* End of line, $ */
+#define CCLASS (ANY+4) /* Character class, [] */
+#define NCCLASS (ANY+5) /* Negated character class, [^] */
+#define END (ANY+0x77) /* Terminate: match found */
+
+#define ISATOR OPERATOR
+#define ISAND ANY
+
+#define QUOTED 0x4000000 /* Bit set for \-ed lex characters */
/*
* Parser Information
t@@ -459,7 +461,7 @@ nextrec(void){
exprp++;
return '\n';
}
- return *exprp++|0x10000;
+ return *exprp++|QUOTED;
}
return *exprp++;
}
t@@ -499,7 +501,7 @@ bldcclass(void)
classp[n+2] = c2;
n += 3;
}else
- classp[n++] = c1;
+ classp[n++] = c1 & ~QUOTED;
}
classp[n] = 0;
if(nclass == Nclass){