regc_cvec.c File Reference

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Functions
static struct cvec *	newcvec (int nchrs, int nranges)
static struct cvec *	clearcvec (struct cvec *cv)
static void	addchr (struct cvec *cv, chr c)
static void	addrange (struct cvec *cv, chr from, chr to)
static struct cvec *	getcvec (struct vars *v, int nchrs, int nranges)
static void	freecvec (struct cvec *cv)

Function Documentation

addchr()

static void addchr ( struct cvec *  cv, chr  c  )

static

Definition at line 82 of file regc_cvec.c.

{
    assert(cv->nchrs < cv->chrspace);
    cv->chrs[cv->nchrs++] = c;
}

References assert, cvec::chrs, cvec::chrspace, and cvec::nchrs.

Referenced by allcases(), cclasscvec(), eclass(), and range().

addrange()

static void addrange ( struct cvec *  cv, chr  from, chr  to  )

static

Definition at line 93 of file regc_cvec.c.

{
    assert(cv->nranges < cv->rangespace);
    cv->ranges[cv->nranges * 2] = from;
    cv->ranges[cv->nranges * 2 + 1] = to;
    cv->nranges++;
}

References assert, cvec::nranges, cvec::ranges, and cvec::rangespace.

Referenced by bringetbitmap(), cclasscvec(), and range().

clearcvec()

static struct cvec * clearcvec ( struct cvec *  cv )

static

Definition at line 69 of file regc_cvec.c.

{
    assert(cv != NULL);
    cv->nchrs = 0;
    cv->nranges = 0;
    cv->cclasscode = -1;
    return cv;
}

References assert, cvec::cclasscode, fb(), cvec::nchrs, and cvec::nranges.

Referenced by getcvec(), and newcvec().

freecvec()

static void freecvec ( struct cvec *  cv )

static

Definition at line 138 of file regc_cvec.c.

{
    FREE(cv);
}

References FREE.

Referenced by getcvec().

getcvec()

static struct cvec * getcvec ( struct vars *  v, int  nchrs, int  nranges  )

static

Definition at line 115 of file regc_cvec.c.

{
    /* recycle existing transient cvec if large enough */
    if (v->cv != NULL && nchrs <= v->cv->chrspace &&
        nranges <= v->cv->rangespace)
        return clearcvec(v->cv);
 
    /* nope, make a new one */
    if (v->cv != NULL)
        freecvec(v->cv);
    v->cv = newcvec(nchrs, nranges);
    if (v->cv == NULL)
        ERR(REG_ESPACE);
 
    return v->cv;
}

References cvec::chrspace, clearcvec(), vars::cv, ERR, fb(), freecvec(), cvec::nchrs, newcvec(), cvec::nranges, and REG_ESPACE.

Referenced by allcases(), cclasscvec(), eclass(), and range().

newcvec()

static struct cvec * newcvec ( int  nchrs, int  nranges  )

static

Definition at line 48 of file regc_cvec.c.

{
    size_t      nc = (size_t) nchrs + (size_t) nranges * 2;
    size_t      n = sizeof(struct cvec) + nc * sizeof(chr);
    struct cvec *cv = (struct cvec *) MALLOC(n);
 
    if (cv == NULL)
        return NULL;
    cv->chrspace = nchrs;
    cv->chrs = (chr *) (((char *) cv) + sizeof(struct cvec));
    cv->ranges = cv->chrs + nchrs;
    cv->rangespace = nranges;
    return clearcvec(cv);
}

References cvec::chrs, cvec::chrspace, clearcvec(), fb(), MALLOC, cvec::nchrs, cvec::nranges, cvec::ranges, and cvec::rangespace.

Referenced by getcvec().