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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 79 of file regc_cvec.c.

81{

82 assert(cv->nchrs < cv->chrspace);

83 cv->chrs[cv->nchrs++] = c;

84}

c

char * c

Definition: preproc-cursor.c:31

assert

#define assert(x)

Definition: regcustom.h:56

cvec::chrspace

int chrspace

Definition: regguts.h:281

cvec::nchrs

int nchrs

Definition: regguts.h:280

cvec::chrs

chr * chrs

Definition: regguts.h:282

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 90 of file regc_cvec.c.

93{

94 assert(cv->nranges < cv->rangespace);

95 cv->ranges[cv->nranges * 2] = from;

96 cv->ranges[cv->nranges * 2 + 1] = to;

97 cv->nranges++;

98}

cvec::rangespace

int rangespace

Definition: regguts.h:284

cvec::ranges

chr * ranges

Definition: regguts.h:285

cvec::nranges

int nranges

Definition: regguts.h:283

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 66 of file regc_cvec.c.

67{

68 assert(cv != NULL);

69 cv->nchrs = 0;

70 cv->nranges = 0;

71 cv->cclasscode = -1;

72 return cv;

73}

cvec::cclasscode

int cclasscode

Definition: regguts.h:286

References assert, cvec::cclasscode, cvec::nchrs, and cvec::nranges.

Referenced by getcvec(), and newcvec().

◆ freecvec()

static void freecvec ( struct cvec * cv )

static

Definition at line 135 of file regc_cvec.c.

136{

137 FREE(cv);

138}

FREE

@ FREE

Definition: task.c:94

References FREE.

Referenced by getcvec().

◆ getcvec()

static struct cvec * getcvec ( struct vars * v,

int nchrs,

int nranges

)

static

Definition at line 112 of file regc_cvec.c.

115{

116 /* recycle existing transient cvec if large enough */

117 if (v->cv != NULL && nchrs <= v->cv->chrspace &&

118 nranges <= v->cv->rangespace)

119 return clearcvec(v->cv);

120

121 /* nope, make a new one */

122 if (v->cv != NULL)

123 freecvec(v->cv);

124 v->cv = newcvec(nchrs, nranges);

125 if (v->cv == NULL)

126 ERR(REG_ESPACE);

127

128 return v->cv;

129}

ERR

#define ERR

Definition: _int.h:161

freecvec

static void freecvec(struct cvec *cv)

Definition: regc_cvec.c:135

newcvec

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

Definition: regc_cvec.c:45

clearcvec

static struct cvec * clearcvec(struct cvec *cv)

Definition: regc_cvec.c:66

REG_ESPACE

#define REG_ESPACE

Definition: regex.h:227

vars::cv

struct cvec * cv

Definition: regcomp.c:304

References cvec::chrspace, clearcvec(), vars::cv, ERR, 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 45 of file regc_cvec.c.

47{

48 size_t nc = (size_t) nchrs + (size_t) nranges * 2;

49 size_t n = sizeof(struct cvec) + nc * sizeof(chr);

50 struct cvec *cv = (struct cvec *) MALLOC(n);

51

52 if (cv == NULL)

53 return NULL;

54 cv->chrspace = nchrs;

55 cv->chrs = (chr *) (((char *) cv) + sizeof(struct cvec));

56 cv->ranges = cv->chrs + nchrs;

57 cv->rangespace = nranges;

58 return clearcvec(cv);

59}

MALLOC

#define MALLOC(n)

Definition: regcustom.h:52

chr

pg_wchar chr

Definition: regcustom.h:59

cvec

Definition: regguts.h:279

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

Referenced by getcvec().