X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a2acc3b918df953836f263e48937c8e5a06f13b6..dd9f8b6bb6935360a8271dc3e8749fb026b601a8:/src/regex/regc_cvec.c?ds=sidebyside

diff --git a/src/regex/regc_cvec.c b/src/regex/regc_cvec.c
index b6aa8c98f1..d2d56fc70a 100644
--- a/src/regex/regc_cvec.c
+++ b/src/regex/regc_cvec.c
@@ -2,21 +2,21 @@
  * Utility functions for handling cvecs
  * This file is #included by regcomp.c.
  *
- * Copyright (c) 1998, 1999 Henry Spencer.	All rights reserved.
- *
+ * 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.
- *
+ * 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
@@ -28,162 +28,181 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $Header$
- *
  */
 
 /*
- * newcvec - allocate a new cvec
+ - newcvec - allocate a new cvec
+ ^ static struct cvec *newcvec(int, int, int);
  */
 static struct cvec *
-newcvec(int nchrs,				/* to hold this many chrs... */
-		int nranges,			/* ... and this many ranges... */
-		int nmcces)				/* ... and this many MCCEs */
+newcvec(nchrs, nranges, nmcces)
+    int nchrs;				/* to hold this many chrs... */
+    int nranges;			/* ... and this many ranges... */
+    int nmcces;				/* ... and this many MCCEs */
 {
-	size_t		n;
-	size_t		nc;
-	struct cvec *cv;
-
-	nc = (size_t) nchrs + (size_t) nmcces *(MAXMCCE + 1) + (size_t) nranges *2;
-
-	n = sizeof(struct cvec) + (size_t) (nmcces - 1) * sizeof(chr *)
-		+ nc * sizeof(chr);
-	cv = (struct cvec *) MALLOC(n);
-	if (cv == NULL)
-		return NULL;
-	cv->chrspace = nchrs;
-	cv->chrs = (chr *) &cv->mcces[nmcces];		/* chrs just after MCCE
-												 * ptrs */
-	cv->mccespace = nmcces;
-	cv->ranges = cv->chrs + nchrs + nmcces * (MAXMCCE + 1);
-	cv->rangespace = nranges;
-	return clearcvec(cv);
+    size_t n;
+    size_t nc;
+    struct cvec *cv;
+
+    nc = (size_t)nchrs + (size_t)nmcces*(MAXMCCE+1) + (size_t)nranges*2;
+    n = sizeof(struct cvec) + (size_t)(nmcces-1)*sizeof(chr *)
+	    + nc*sizeof(chr);
+    cv = (struct cvec *)MALLOC(n);
+    if (cv == NULL) {
+	return NULL;
+    }
+    cv->chrspace = nchrs;
+    cv->chrs = (chr *)&cv->mcces[nmcces];	/* chrs just after MCCE ptrs */
+    cv->mccespace = nmcces;
+    cv->ranges = cv->chrs + nchrs + nmcces*(MAXMCCE+1);
+    cv->rangespace = nranges;
+    return clearcvec(cv);
 }
 
 /*
- * clearcvec - clear a possibly-new cvec
+ - clearcvec - clear a possibly-new cvec
  * Returns pointer as convenience.
+ ^ static struct cvec *clearcvec(struct cvec *);
  */
 static struct cvec *
-clearcvec(struct cvec * cv)
+clearcvec(cv)
+    struct cvec *cv;			/* character vector */
 {
-	int			i;
-
-	assert(cv != NULL);
-	cv->nchrs = 0;
-	assert(cv->chrs == (chr *) &cv->mcces[cv->mccespace]);
-	cv->nmcces = 0;
-	cv->nmccechrs = 0;
-	cv->nranges = 0;
-	for (i = 0; i < cv->mccespace; i++)
-		cv->mcces[i] = NULL;
-
-	return cv;
+    int i;
+
+    assert(cv != NULL);
+    cv->nchrs = 0;
+    assert(cv->chrs == (chr *)&cv->mcces[cv->mccespace]);
+    cv->nmcces = 0;
+    cv->nmccechrs = 0;
+    cv->nranges = 0;
+    for (i = 0; i < cv->mccespace; i++) {
+	cv->mcces[i] = NULL;
+    }
+
+    return cv;
 }
 
 /*
- * addchr - add a chr to a cvec
+ - addchr - add a chr to a cvec
+ ^ static VOID addchr(struct cvec *, pchr);
  */
-static void
-addchr(struct cvec * cv,		/* character vector */
-	   chr c)					/* character to add */
+static VOID
+addchr(cv, c)
+    struct cvec *cv;			/* character vector */
+    pchr c;				/* character to add */
 {
-	assert(cv->nchrs < cv->chrspace - cv->nmccechrs);
-	cv->chrs[cv->nchrs++] = (chr) c;
+    assert(cv->nchrs < cv->chrspace - cv->nmccechrs);
+    cv->chrs[cv->nchrs++] = (chr)c;
 }
 
 /*
- * addrange - add a range to a cvec
+ - addrange - add a range to a cvec
+ ^ static VOID addrange(struct cvec *, pchr, pchr);
  */
-static void
-addrange(struct cvec * cv,		/* character vector */
-		 chr from,				/* first character of range */
-		 chr to)				/* last character of range */
+static VOID
+addrange(cv, from, to)
+    struct cvec *cv;			/* character vector */
+    pchr from;				/* first character of range */
+    pchr to;				/* last character of range */
 {
-	assert(cv->nranges < cv->rangespace);
-	cv->ranges[cv->nranges * 2] = (chr) from;
-	cv->ranges[cv->nranges * 2 + 1] = (chr) to;
-	cv->nranges++;
+    assert(cv->nranges < cv->rangespace);
+    cv->ranges[cv->nranges*2] = (chr)from;
+    cv->ranges[cv->nranges*2 + 1] = (chr)to;
+    cv->nranges++;
 }
 
 /*
- * addmcce - add an MCCE to a cvec
+ - addmcce - add an MCCE to a cvec
+ ^ static VOID addmcce(struct cvec *, chr *, chr *);
  */
-static void
-addmcce(struct cvec * cv,		/* character vector */
-		chr *startp,			/* beginning of text */
-		chr *endp)				/* just past end of text */
+static VOID
+addmcce(cv, startp, endp)
+    struct cvec *cv;			/* character vector */
+    chr *startp;			/* beginning of text */
+    chr *endp;				/* just past end of text */
 {
-	int			len;
-	int			i;
-	chr		   *s;
-	chr		   *d;
-
-	if (startp == NULL && endp == NULL)
-		return;
-	len = endp - startp;
-	assert(len > 0);
-	assert(cv->nchrs + len < cv->chrspace - cv->nmccechrs);
-	assert(cv->nmcces < cv->mccespace);
-	d = &cv->chrs[cv->chrspace - cv->nmccechrs - len - 1];
-	cv->mcces[cv->nmcces++] = d;
-	for (s = startp, i = len; i > 0; s++, i--)
-		*d++ = *s;
-	*d++ = 0;					/* endmarker */
-	assert(d == &cv->chrs[cv->chrspace - cv->nmccechrs]);
-	cv->nmccechrs += len + 1;
+    int len;
+    int i;
+    chr *s;
+    chr *d;
+
+    if (startp == NULL && endp == NULL) {
+	return;
+    }
+    len = endp - startp;
+    assert(len > 0);
+    assert(cv->nchrs + len < cv->chrspace - cv->nmccechrs);
+    assert(cv->nmcces < cv->mccespace);
+    d = &cv->chrs[cv->chrspace - cv->nmccechrs - len - 1];
+    cv->mcces[cv->nmcces++] = d;
+    for (s = startp, i = len; i > 0; s++, i--) {
+	*d++ = *s;
+    }
+    *d++ = 0;				/* endmarker */
+    assert(d == &cv->chrs[cv->chrspace - cv->nmccechrs]);
+    cv->nmccechrs += len + 1;
 }
 
 /*
- * haschr - does a cvec contain this chr?
+ - haschr - does a cvec contain this chr?
+ ^ static int haschr(struct cvec *, pchr);
  */
-static int						/* predicate */
-haschr(struct cvec * cv,		/* character vector */
-	   chr c)					/* character to test for */
+static int				/* predicate */
+haschr(cv, c)
+    struct cvec *cv;			/* character vector */
+    pchr c;				/* character to test for */
 {
-	int			i;
-	chr		   *p;
+    int i;
+    chr *p;
 
-	for (p = cv->chrs, i = cv->nchrs; i > 0; p++, i--)
-	{
-		if (*p == c)
-			return 1;
+    for (p = cv->chrs, i = cv->nchrs; i > 0; p++, i--) {
+	if (*p == c) {
+	    return 1;
 	}
-	for (p = cv->ranges, i = cv->nranges; i > 0; p += 2, i--)
-	{
-		if ((*p <= c) && (c <= *(p + 1)))
-			return 1;
+    }
+    for (p = cv->ranges, i = cv->nranges; i > 0; p += 2, i--) {
+	if ((*p <= c) && (c <= *(p+1))) {
+	    return 1;
 	}
-	return 0;
+    }
+    return 0;
 }
 
 /*
- * getcvec - get a cvec, remembering it as v->cv
+ - getcvec - get a cvec, remembering it as v->cv
+ ^ static struct cvec *getcvec(struct vars *, int, int, int);
  */
 static struct cvec *
-getcvec(struct vars * v,		/* context */
-		int nchrs,				/* to hold this many chrs... */
-		int nranges,			/* ... and this many ranges... */
-		int nmcces)				/* ... and this many MCCEs */
+getcvec(v, nchrs, nranges, nmcces)
+    struct vars *v;			/* context */
+    int nchrs;				/* to hold this many chrs... */
+    int nranges;			/* ... and this many ranges... */
+    int nmcces;				/* ... and this many MCCEs */
 {
-	if (v->cv != NULL && nchrs <= v->cv->chrspace &&
-		nranges <= v->cv->rangespace && nmcces <= v->cv->mccespace)
-		return clearcvec(v->cv);
-
-	if (v->cv != NULL)
-		freecvec(v->cv);
-	v->cv = newcvec(nchrs, nranges, nmcces);
-	if (v->cv == NULL)
-		ERR(REG_ESPACE);
-
-	return v->cv;
+    if (v->cv != NULL && nchrs <= v->cv->chrspace &&
+	    nranges <= v->cv->rangespace && nmcces <= v->cv->mccespace) {
+	return clearcvec(v->cv);
+    }
+
+    if (v->cv != NULL) {
+	freecvec(v->cv);
+    }
+    v->cv = newcvec(nchrs, nranges, nmcces);
+    if (v->cv == NULL) {
+	ERR(REG_ESPACE);
+    }
+
+    return v->cv;
 }
 
 /*
- * freecvec - free a cvec
+ - freecvec - free a cvec
+ ^ static VOID freecvec(struct cvec *);
  */
-static void
-freecvec(struct cvec * cv)
+static VOID
+freecvec(cv)
+    struct cvec *cv;			/* character vector */
 {
-	FREE(cv);
+    FREE(cv);
 }