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* Traditional regular expressions can now be used with multibyte characters.

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This commit is contained in:
Gunnar Ritter
2005-02-19 18:01:26 +00:00
parent a7523a2130
commit 971748839e
7 changed files with 204 additions and 696 deletions
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51
ex_re.h
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@@ -72,7 +72,7 @@
*
* from ex_re.h 7.3 (Berkeley) 5/31/85
*
* @(#)ex_re.h 1.18 (gritter) 11/23/04
* @(#)ex_re.h 1.19 (gritter) 2/19/05
*/
#ifdef UXRE
@@ -89,15 +89,13 @@
* more and alternation.)
*/
struct regexp {
#ifdef UXRE
char Expbuf[2*LBSIZE + 1];
regex_t Re;
char Patbuf[2*LBSIZE + 1];
long Re_ident;
bool Re_used;
#ifdef UXRE
regex_t Expbuf;
#else /* !UXRE */
char Expbuf[ESIZE + 2];
int Low;
int Siz;
char *Expbuf;
#endif /* !UXRE */
bool Circfl;
short Nbra;
@@ -113,18 +111,8 @@ var struct regexp re; /* Last re */
var struct regexp scanre; /* Last scanning re */
var struct regexp subre; /* Last substitute re */
/*
* Defining circfl and expbuf like this saves us from having to change
* old code in the ex_re.c stuff.
*/
#define expbuf re.Expbuf
#define circfl re.Circfl
#define nbra re.Nbra
#define low re.Low
#define siz re.Siz
var char *loc1; /* Where re began to match (in linebuf) */
var char *loc2; /* First char after re match (") */
extern char *loc1; /* Where re began to match (in linebuf) */
extern char *loc2; /* First char after re match (") */
/*
* Since the phototypesetter v7-epsilon
@@ -136,30 +124,9 @@ extern struct regexp *resre(struct regexp *);
/*
* Definitions for substitute
*/
var char *braslist[NBRA]; /* Starts of \(\)'ed text in lhs */
var char *braelist[NBRA]; /* Ends... */
extern char *braslist[NBRA]; /* Starts of \(\)'ed text in lhs */
extern char *braelist[NBRA]; /* Ends... */
var char rhsbuf[RHSSIZE]; /* Rhs of last substitute */
#ifdef BIT8
var char rhsquo[RHSSIZE]; /* Quote indicator for rhsbuf */
#endif
/*
* Definitions of codes for the compiled re's.
* The re algorithm is described in a paper
* by K. Thompson in the CACM about 10 years ago
* and is the same as in ed.
*/
#define STAR 1
#define RNGE 0100
#define CBRA 1
#define CDOT 4
#define CCL 8
#define NCCL 12
#define CDOL 16
#define CEOFC 17
#define CKET 18
#define CCHR 20
#define CBRC 24
#define CLET 25
#define CBACK 36