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Diffstat (limited to 'tcl8.6/generic/regcustom.h')
| -rw-r--r-- | tcl8.6/generic/regcustom.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/tcl8.6/generic/regcustom.h b/tcl8.6/generic/regcustom.h new file mode 100644 index 0000000..681b97d --- /dev/null +++ b/tcl8.6/generic/regcustom.h @@ -0,0 +1,155 @@ +/* + * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved. + * + * Development of this software was funded, in part, by Cray Research Inc., + * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics + * Corporation, none of whom are responsible for the results. The author + * thanks all of them. + * + * Redistribution and use in source and binary forms - with or without + * modification - are permitted for any purpose, provided that redistributions + * in source form retain this entire copyright notice and indicate the origin + * and nature of any modifications. + * + * I'd appreciate being given credit for this package in the documentation of + * software which uses it, but that is not a requirement. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Headers if any. + */ + +#include "regex.h" + +/* + * Overrides for regguts.h definitions, if any. + */ + +#define FUNCPTR(name, args) (*name)args +#define MALLOC(n) VS(attemptckalloc(n)) +#define FREE(p) ckfree(VS(p)) +#define REALLOC(p,n) VS(attemptckrealloc(VS(p),n)) + +/* + * Do not insert extras between the "begin" and "end" lines - this chunk is + * automatically extracted to be fitted into regex.h. + */ + +/* --- begin --- */ +/* Ensure certain things don't sneak in from system headers. */ +#ifdef __REG_WIDE_T +#undef __REG_WIDE_T +#endif +#ifdef __REG_WIDE_COMPILE +#undef __REG_WIDE_COMPILE +#endif +#ifdef __REG_WIDE_EXEC +#undef __REG_WIDE_EXEC +#endif +#ifdef __REG_REGOFF_T +#undef __REG_REGOFF_T +#endif +#ifdef __REG_NOFRONT +#undef __REG_NOFRONT +#endif +#ifdef __REG_NOCHAR +#undef __REG_NOCHAR +#endif +/* Interface types */ +#define __REG_WIDE_T Tcl_UniChar +#define __REG_REGOFF_T long /* Not really right, but good enough... */ +/* Names and declarations */ +#define __REG_WIDE_COMPILE TclReComp +#define __REG_WIDE_EXEC TclReExec +#define __REG_NOFRONT /* Don't want regcomp() and regexec() */ +#define __REG_NOCHAR /* Or the char versions */ +#define regfree TclReFree +#define regerror TclReError +/* --- end --- */ + +/* + * Internal character type and related. + */ + +typedef Tcl_UniChar chr; /* The type itself. */ +typedef int pchr; /* What it promotes to. */ +typedef unsigned uchr; /* Unsigned type that will hold a chr. */ +typedef int celt; /* Type to hold chr, or NOCELT */ +#define NOCELT (-1) /* Celt value which is not valid chr */ +#define CHR(c) (UCHAR(c)) /* Turn char literal into chr literal */ +#define DIGITVAL(c) ((c)-'0') /* Turn chr digit into its value */ +#if TCL_UTF_MAX > 4 +#define CHRBITS 32 /* Bits in a chr; must not use sizeof */ +#define CHR_MIN 0x00000000 /* Smallest and largest chr; the value */ +#define CHR_MAX 0xffffffff /* CHR_MAX-CHR_MIN+1 should fit in uchr */ +#else +#define CHRBITS 16 /* Bits in a chr; must not use sizeof */ +#define CHR_MIN 0x0000 /* Smallest and largest chr; the value */ +#define CHR_MAX 0xffff /* CHR_MAX-CHR_MIN+1 should fit in uchr */ +#endif + +/* + * Functions operating on chr. + */ + +#define iscalnum(x) Tcl_UniCharIsAlnum(x) +#define iscalpha(x) Tcl_UniCharIsAlpha(x) +#define iscdigit(x) Tcl_UniCharIsDigit(x) +#define iscspace(x) Tcl_UniCharIsSpace(x) + +/* + * Name the external functions. + */ + +#define compile TclReComp +#define exec TclReExec + +/* +& Enable/disable debugging code (by whether REG_DEBUG is defined or not). +*/ + +#if 0 /* No debug unless requested by makefile. */ +#define REG_DEBUG /* */ +#endif + +/* + * Method of allocating a local workspace. We used a thread-specific data + * space to store this because the regular expression engine is never + * reentered from the same thread; it doesn't make any callbacks. + */ + +#if 1 +#define AllocVars(vPtr) \ + static Tcl_ThreadDataKey varsKey; \ + register struct vars *vPtr = (struct vars *) \ + Tcl_GetThreadData(&varsKey, sizeof(struct vars)) +#else +/* + * This strategy for allocating workspace is "more proper" in some sense, but + * quite a bit slower. Using TSD (as above) leads to code that is quite a bit + * faster in practice (measured!) + */ +#define AllocVars(vPtr) \ + register struct vars *vPtr = (struct vars *) MALLOC(sizeof(struct vars)) +#define FreeVars(vPtr) \ + FREE(vPtr) +#endif + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |