#define PERL_IN_PP_PACK_C
#include "perl.h"
+/* Types used by pack/unpack */
+typedef enum {
+ e_no_len, /* no length */
+ e_number, /* number, [] */
+ e_star /* asterisk */
+} howlen_t;
+
+typedef struct tempsym {
+ const char* patptr; /* current template char */
+ const char* patend; /* one after last char */
+ const char* grpbeg; /* 1st char of ()-group */
+ const char* grpend; /* end of ()-group */
+ I32 code; /* template code (!<>) */
+ I32 length; /* length/repeat count */
+ howlen_t howlen; /* how length is given */
+ int level; /* () nesting level */
+ U32 flags; /* /=4, comma=2, pack=1 */
+ /* and group modifiers */
+ STRLEN strbeg; /* offset of group start */
+ struct tempsym *previous; /* previous group */
+} tempsym_t;
+
+#define TEMPSYM_INIT(symptr, p, e, f) \
+ STMT_START { \
+ (symptr)->patptr = (p); \
+ (symptr)->patend = (e); \
+ (symptr)->grpbeg = NULL; \
+ (symptr)->grpend = NULL; \
+ (symptr)->grpend = NULL; \
+ (symptr)->code = 0; \
+ (symptr)->length = 0; \
+ (symptr)->howlen = 0; \
+ (symptr)->level = 0; \
+ (symptr)->flags = (f); \
+ (symptr)->strbeg = 0; \
+ (symptr)->previous = NULL; \
+ } STMT_END
+
#if PERL_VERSION >= 9
# define PERL_PACK_CAN_BYTEORDER
# define PERL_PACK_CAN_SHRIEKSIGN
STRLEN len;
char *s = SvPV(sv, len);
char *t;
- U32 i = 0;
if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
SV *tmpNew = newSVpvn("0000000000", 10);
while (!*t) /* trailing '\0'? */
t--;
while (t > s) {
- i = ((*t - '0') << 7) + m;
+ const U32 i = ((*t - '0') << 7) + m;
*(t--) = '0' + (char)(i % 10);
m = (char)(i / 10);
}
# define DO_BO_UNPACK(var, type)
# define DO_BO_PACK(var, type)
-# define DO_BO_UNPACK_PTR(var, type, pre_cast)
-# define DO_BO_PACK_PTR(var, type, pre_cast)
+# define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast)
+# define DO_BO_PACK_PTR(var, type, pre_cast, post_cast)
# define DO_BO_UNPACK_N(var, type)
# define DO_BO_PACK_N(var, type)
# define DO_BO_UNPACK_P(var)
# define DO_BO_PACK_P(var)
+# define DO_BO_UNPACK_PC(var)
+# define DO_BO_PACK_PC(var)
#else /* PERL_PACK_CAN_BYTEORDER */
} \
} STMT_END
-# define DO_BO_UNPACK_PTR(var, type, pre_cast) \
+# define DO_BO_UNPACK_PTR(var, type, pre_cast, post_cast) \
STMT_START { \
switch (TYPE_ENDIANNESS(datumtype)) { \
case TYPE_IS_BIG_ENDIAN: \
- var = (void *) my_betoh ## type ((pre_cast) var); \
+ var = (post_cast*) my_betoh ## type ((pre_cast) var); \
break; \
case TYPE_IS_LITTLE_ENDIAN: \
- var = (void *) my_letoh ## type ((pre_cast) var); \
+ var = (post_cast *) my_letoh ## type ((pre_cast) var); \
break; \
default: \
break; \
} \
} STMT_END
-# define DO_BO_PACK_PTR(var, type, pre_cast) \
+# define DO_BO_PACK_PTR(var, type, pre_cast, post_cast) \
STMT_START { \
switch (TYPE_ENDIANNESS(datumtype)) { \
case TYPE_IS_BIG_ENDIAN: \
- var = (void *) my_htobe ## type ((pre_cast) var); \
+ var = (post_cast *) my_htobe ## type ((pre_cast) var); \
break; \
case TYPE_IS_LITTLE_ENDIAN: \
- var = (void *) my_htole ## type ((pre_cast) var); \
+ var = (post_cast *) my_htole ## type ((pre_cast) var); \
break; \
default: \
break; \
} STMT_END
# if PTRSIZE == INTSIZE
-# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int)
-# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int)
+# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int, void)
+# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int, void)
+# define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, i, int, char)
+# define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, i, int, char)
# elif PTRSIZE == LONGSIZE
-# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long)
-# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long)
+# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long, void)
+# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long, void)
+# define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, long, char)
+# define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, long, char)
# else
# define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer)
# define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer)
+# define DO_BO_UNPACK_PC(var) BO_CANT_DOIT(unpack, pointer)
+# define DO_BO_PACK_PC(var) BO_CANT_DOIT(pack, pointer)
# endif
# if defined(my_htolen) && defined(my_letohn) && \
#endif
STATIC U8
-uni_to_byte(pTHX_ char **s, const char *end, I32 datumtype)
+uni_to_byte(pTHX_ const char **s, const char *end, I32 datumtype)
{
UV val;
STRLEN retlen;
*(U8 *)(s)++)
STATIC bool
-uni_to_bytes(pTHX_ char **s, char *end, char *buf, int buf_len, I32 datumtype)
+uni_to_bytes(pTHX_ const char **s, const char *end, const char *buf, int buf_len, I32 datumtype)
{
UV val;
STRLEN retlen;
- char *from = *s;
+ const char *from = *s;
int bad = 0;
- U32 flags = ckWARN(WARN_UTF8) ?
+ const U32 flags = ckWARN(WARN_UTF8) ?
UTF8_CHECK_ONLY : (UTF8_CHECK_ONLY | UTF8_ALLOW_ANY);
for (;buf_len > 0; buf_len--) {
if (from >= end) return FALSE;
if (bad) {
if (bad & 1) {
/* Rewalk the string fragment while warning */
- char *ptr;
- flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY;
+ const char *ptr;
+ const int flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY;
for (ptr = *s; ptr < from; ptr += UTF8SKIP(ptr)) {
if (ptr >= end) break;
utf8n_to_uvuni((U8 *) ptr, end-ptr, &retlen, flags);
}
STATIC bool
-next_uni_uu(pTHX_ char **s, const char *end, I32 *out)
+next_uni_uu(pTHX_ const char **s, const char *end, I32 *out)
{
UV val;
STRLEN retlen;
}
STATIC void
-bytes_to_uni(pTHX_ U8 *start, STRLEN len, char **dest) {
+bytes_to_uni(pTHX_ const U8 *start, STRLEN len, char **dest) {
U8 buffer[UTF8_MAXLEN];
- U8 *end = start + len;
+ const U8 *end = start + len;
char *d = *dest;
while (start < end) {
- int length =
+ const int length =
uvuni_to_utf8_flags(buffer, NATIVE_TO_UNI(*start), 0) - buffer;
switch(length) {
case 1:
#define PUSH_GROWING_BYTES(utf8, cat, start, cur, buf, in_len) \
STMT_START { \
- STRLEN glen = (in_len); \
+ const STRLEN glen = (in_len); \
STRLEN gl = glen; \
if (utf8) gl *= UTF8_EXPAND; \
if ((cur) + gl >= (start) + SvLEN(cat)) { \
*cur = '\0'; \
- SvCUR(cat) = (cur) - (start); \
+ SvCUR_set((cat), (cur) - (start)); \
(start) = sv_exp_grow(aTHX_ cat, gl); \
(cur) = (start) + SvCUR(cat); \
} \
#define PUSH_BYTE(utf8, s, byte) \
STMT_START { \
if (utf8) { \
- U8 au8 = (byte); \
+ const U8 au8 = (byte); \
bytes_to_uni(aTHX_ &au8, 1, &(s)); \
} else *(U8 *)(s)++ = (byte); \
} STMT_END
str += retlen; \
} STMT_END
+static const char *_action( const tempsym_t* symptr )
+{
+ return ( symptr->flags & FLAG_PACK ) ? "pack" : "unpack";
+}
+
/* Returns the sizeof() struct described by pat */
STATIC I32
S_measure_struct(pTHX_ tempsym_t* symptr)
while (next_symbol(symptr)) {
I32 len;
- int star, size;
+ int size;
switch (symptr->howlen) {
case e_star:
Perl_croak(aTHX_ "Within []-length '*' not allowed in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
break;
default:
/* e_no_len and e_number */
size = packprops[TYPE_NO_ENDIANNESS(symptr->code)] & PACK_SIZE_MASK;
if (!size) {
+ int star;
/* endianness doesn't influence the size of a type */
switch(TYPE_NO_ENDIANNESS(symptr->code)) {
default:
Perl_croak(aTHX_ "Invalid type '%c' in %s",
(int)TYPE_NO_MODIFIERS(symptr->code),
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
#ifdef PERL_PACK_CAN_SHRIEKSIGN
case '.' | TYPE_IS_SHRIEKING:
case '@' | TYPE_IS_SHRIEKING:
case 'u':
Perl_croak(aTHX_ "Within []-length '%c' not allowed in %s",
(int) TYPE_NO_MODIFIERS(symptr->code),
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
case '%':
size = 0;
break;
case 'X':
size = -1;
if (total < len)
- Perl_croak(aTHX_ "'X' outside of string in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ Perl_croak(aTHX_ "'X' outside of string in %s", _action( symptr ) );
break;
case 'x' | TYPE_IS_SHRIEKING:
if (!len) /* Avoid division by 0 */
/* locate matching closing parenthesis or bracket
* returns char pointer to char after match, or NULL
*/
-STATIC char *
-S_group_end(pTHX_ register char *patptr, register char *patend, char ender)
+STATIC const char *
+S_group_end(pTHX_ register const char *patptr, register const char *patend, char ender)
{
while (patptr < patend) {
- char c = *patptr++;
+ const char c = *patptr++;
if (isSPACE(c))
continue;
* Expects a pointer to the first digit and address of length variable
* Advances char pointer to 1st non-digit char and returns number
*/
-STATIC char *
-S_get_num(pTHX_ register char *patptr, I32 *lenptr )
+STATIC const char *
+S_get_num(pTHX_ register const char *patptr, I32 *lenptr )
{
I32 len = *patptr++ - '0';
while (isDIGIT(*patptr)) {
STATIC bool
S_next_symbol(pTHX_ tempsym_t* symptr )
{
- char* patptr = symptr->patptr;
- char* patend = symptr->patend;
- const char *allowed = "";
+ const char* patptr = symptr->patptr;
+ const char* patend = symptr->patend;
symptr->flags &= ~FLAG_SLASH;
if (((symptr->flags & FLAG_COMMA) == 0) && ckWARN(WARN_UNPACK)){
symptr->flags |= FLAG_COMMA;
Perl_warner(aTHX_ packWARN(WARN_UNPACK),
- "Invalid type ',' in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ "Invalid type ',' in %s", _action( symptr ) );
}
continue;
}
if (code == '(') {
if( isDIGIT(*patptr) || *patptr == '*' || *patptr == '[' )
Perl_croak(aTHX_ "()-group starts with a count in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
symptr->grpbeg = patptr;
patptr = 1 + ( symptr->grpend = group_end(patptr, patend, ')') );
if( symptr->level >= MAX_SUB_TEMPLATE_LEVEL )
Perl_croak(aTHX_ "Too deeply nested ()-groups in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
}
/* look for group modifiers to inherit */
/* look for modifiers */
while (patptr < patend) {
- I32 modifier = 0;
+ const char *allowed;
+ I32 modifier;
switch (*patptr) {
case '!':
modifier = TYPE_IS_SHRIEKING;
break;
#endif /* PERL_PACK_CAN_BYTEORDER */
default:
+ allowed = "";
+ modifier = 0;
break;
}
if (!strchr(allowed, TYPE_NO_MODIFIERS(code)))
Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr,
- allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ allowed, _action( symptr ) );
if (TYPE_ENDIANNESS(code | modifier) == TYPE_ENDIANNESS_MASK)
Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s",
- (int) TYPE_NO_MODIFIERS(code),
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ (int) TYPE_NO_MODIFIERS(code), _action( symptr ) );
else if (TYPE_ENDIANNESS(code | modifier | inherited_modifiers) ==
TYPE_ENDIANNESS_MASK)
Perl_croak(aTHX_ "Can't use '%c' in a group with different byte-order in %s",
- *patptr, symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ *patptr, _action( symptr ) );
- if (ckWARN(WARN_UNPACK)) {
- if (code & modifier)
+ if ((code & modifier) && ckWARN(WARN_UNPACK)) {
Perl_warner(aTHX_ packWARN(WARN_UNPACK),
"Duplicate modifier '%c' after '%c' in %s",
*patptr, (int) TYPE_NO_MODIFIERS(code),
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
}
code |= modifier;
symptr->howlen = e_star;
} else if (*patptr == '[') {
- char* lenptr = ++patptr;
+ const char* lenptr = ++patptr;
symptr->howlen = e_number;
patptr = group_end( patptr, patend, ']' ) + 1;
/* what kind of [] is it? */
lenptr = get_num( lenptr, &symptr->length );
if( *lenptr != ']' )
Perl_croak(aTHX_ "Malformed integer in [] in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack");
+ _action( symptr ) );
} else {
tempsym_t savsym = *symptr;
symptr->patend = patptr-1;
if (patptr < patend &&
(isDIGIT(*patptr) || *patptr == '*' || *patptr == '['))
Perl_croak(aTHX_ "'/' does not take a repeat count in %s",
- symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ _action( symptr ) );
}
break;
}
while (pat < patend) {
if (pat[0] == '#') {
pat++;
- pat = memchr(pat, '\n', patend-pat);
+ pat = (const char *) memchr(pat, '\n', patend-pat);
if (!pat) return FALSE;
} else if (pat[0] == 'U') {
if (first || pat[1] == '0') return TRUE;
while (pat < patend) {
if (pat[0] != '#') return pat[0];
pat++;
- pat = memchr(pat, '\n', patend-pat);
+ pat = (const char *) memchr(pat, '\n', patend-pat);
if (!pat) return 0;
pat++;
}
=cut */
I32
-Perl_unpack_str(pTHX_ char *pat, char *patend, char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags)
+Perl_unpack_str(pTHX_ const char *pat, const char *patend, const char *s, const char *strbeg, const char *strend, char **new_s, I32 ocnt, U32 flags)
{
- tempsym_t sym = { 0 };
+ tempsym_t sym;
+ PERL_UNUSED_ARG(strbeg);
+ PERL_UNUSED_ARG(new_s);
+ PERL_UNUSED_ARG(ocnt);
if (flags & FLAG_DO_UTF8) flags |= FLAG_WAS_UTF8;
else if (need_utf8(pat, patend)) {
if (first_symbol(pat, patend) != 'U' && (flags & FLAG_DO_UTF8))
flags |= FLAG_PARSE_UTF8;
- sym.patptr = pat;
- sym.patend = patend;
- sym.flags = flags;
+ TEMPSYM_INIT(&sym, pat, patend, flags);
return unpack_rec(&sym, s, s, strend, NULL );
}
=cut */
I32
-Perl_unpackstring(pTHX_ char *pat, char *patend, char *s, char *strend, U32 flags)
+Perl_unpackstring(pTHX_ const char *pat, const char *patend, const char *s, const char *strend, U32 flags)
{
- tempsym_t sym = { 0 };
+ tempsym_t sym;
if (flags & FLAG_DO_UTF8) flags |= FLAG_WAS_UTF8;
else if (need_utf8(pat, patend)) {
if (first_symbol(pat, patend) != 'U' && (flags & FLAG_DO_UTF8))
flags |= FLAG_PARSE_UTF8;
- sym.patptr = pat;
- sym.patend = patend;
- sym.flags = flags;
+ TEMPSYM_INIT(&sym, pat, patend, flags);
return unpack_rec(&sym, s, s, strend, NULL );
}
STATIC
I32
-S_unpack_rec(pTHX_ tempsym_t* symptr, char *s, char *strbeg, char *strend, char **new_s )
+S_unpack_rec(pTHX_ tempsym_t* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s )
{
- dSP;
+ dVAR; dSP;
SV *sv;
- I32 start_sp_offset = SP - PL_stack_base;
+ const I32 start_sp_offset = SP - PL_stack_base;
howlen_t howlen;
I32 checksum = 0;
const int bits_in_uv = CHAR_BIT * sizeof(cuv);
bool beyond = FALSE;
bool explicit_length;
- bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0;
+ const bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0;
bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0;
symptr->strbeg = s - strbeg;
while (next_symbol(symptr)) {
packprops_t props;
- I32 len, ai32;
+ I32 len;
I32 datumtype = symptr->code;
/* do first one only unless in list context
/ is implemented by unpacking the count, then popping it from the
props = packprops[TYPE_NO_ENDIANNESS(datumtype)];
if (props) {
/* props nonzero means we can process this letter. */
- long size = props & PACK_SIZE_MASK;
- long howmany = (strend - s) / size;
+ const long size = props & PACK_SIZE_MASK;
+ const long howmany = (strend - s) / size;
if (len > howmany)
len = howmany;
case '(':
{
tempsym_t savsym = *symptr;
- U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags);
+ const U32 group_modifiers = TYPE_MODIFIERS(datumtype & ~symptr->flags);
symptr->flags |= group_modifiers;
symptr->patend = savsym.grpend;
symptr->previous = &savsym;
case '.' | TYPE_IS_SHRIEKING:
#endif
case '.': {
- char *from;
+ const char *from;
SV *sv;
#ifdef PERL_PACK_CAN_SHRIEKSIGN
- bool u8 = utf8 && !(datumtype & TYPE_IS_SHRIEKING);
+ const bool u8 = utf8 && !(datumtype & TYPE_IS_SHRIEKING);
#else /* PERL_PACK_CAN_SHRIEKSIGN */
- bool u8 = utf8;
+ const bool u8 = utf8;
#endif
if (howlen == e_star) from = strbeg;
else if (len <= 0) from = s;
from = group ? strbeg + group->strbeg : strbeg;
}
sv = from <= s ?
- newSVuv( u8 ? (UV) utf8_length(from, s) : (UV) (s-from)) :
- newSViv(-(u8 ? (IV) utf8_length(s, from) : (IV) (from-s)));
+ newSVuv( u8 ? (UV) utf8_length((const U8*)from, (const U8*)s) : (UV) (s-from)) :
+ newSViv(-(u8 ? (IV) utf8_length((const U8*)s, (const U8*)from) : (IV) (from-s)));
XPUSHs(sv_2mortal(sv));
break;
}
if (!len) /* Avoid division by 0 */
len = 1;
if (utf8) {
- char *hop, *last;
+ const char *hop, *last;
I32 l = len;
hop = last = strbeg;
while (hop < s) {
s -= len;
}
break;
- case 'x' | TYPE_IS_SHRIEKING:
+ case 'x' | TYPE_IS_SHRIEKING: {
+ I32 ai32;
if (!len) /* Avoid division by 0 */
len = 1;
if (utf8) ai32 = utf8_length((U8 *) strbeg, (U8 *) s) % len;
else ai32 = (s - strbeg) % len;
if (ai32 == 0) break;
len -= ai32;
+ }
/* FALL THROUGH */
case 'x':
if (utf8) {
}
if (utf8) {
I32 l;
- char *hop;
+ const char *hop;
for (l=len, hop=s; l>0; l--, hop += UTF8SKIP(hop)) {
if (hop >= strend) {
if (hop > strend)
if (datumtype == 'Z') {
/* 'Z' strips stuff after first null */
- char *ptr, *end;
+ const char *ptr, *end;
end = s + len;
for (ptr = s; ptr < end; ptr++) if (*ptr == 0) break;
sv = newSVpvn(s, ptr-s);
len = ptr-s + (ptr != strend ? 1 : 0);
} else if (datumtype == 'A') {
/* 'A' strips both nulls and spaces */
- char *ptr;
+ const char *ptr;
if (utf8 && (symptr->flags & FLAG_WAS_UTF8)) {
for (ptr = s+len-1; ptr >= s; ptr--)
if (*ptr != 0 && !UTF8_IS_CONTINUATION(*ptr) &&
if (checksum) {
if (!PL_bitcount) {
int bits;
- Newz(601, PL_bitcount, 256, char);
+ Newxz(PL_bitcount, 256, char);
for (bits = 1; bits < 256; bits++) {
if (bits & 1) PL_bitcount[bits]++;
if (bits & 2) PL_bitcount[bits]++;
str = SvPVX(sv);
if (datumtype == 'b') {
U8 bits = 0;
- ai32 = len;
+ const I32 ai32 = len;
for (len = 0; len < ai32; len++) {
if (len & 7) bits >>= 1;
else if (utf8) {
}
} else {
U8 bits = 0;
- ai32 = len;
+ const I32 ai32 = len;
for (len = 0; len < ai32; len++) {
if (len & 7) bits <<= 1;
else if (utf8) {
}
}
*str = '\0';
- SvCUR_set(sv, str - SvPVX(sv));
+ SvCUR_set(sv, str - SvPVX_const(sv));
XPUSHs(sv);
break;
}
str = SvPVX(sv);
if (datumtype == 'h') {
U8 bits = 0;
- ai32 = len;
+ I32 ai32 = len;
for (len = 0; len < ai32; len++) {
if (len & 1) bits >>= 4;
else if (utf8) {
}
} else {
U8 bits = 0;
- ai32 = len;
+ const I32 ai32 = len;
for (len = 0; len < ai32; len++) {
if (len & 1) bits <<= 4;
else if (utf8) {
}
}
*str = '\0';
- SvCUR_set(sv, str - SvPVX(sv));
+ SvCUR_set(sv, str - SvPVX_const(sv));
XPUSHs(sv);
break;
}
(symptr->flags & FLAG_DO_UTF8) &&
!(symptr->flags & FLAG_WAS_UTF8) : utf8) {
while (len-- > 0 && s < strend) {
- UV val;
STRLEN retlen;
- val = utf8n_to_uvchr((U8 *) s, strend-s, &retlen,
+ const UV val = utf8n_to_uvchr((U8 *) s, strend-s, &retlen,
ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
if (retlen == (STRLEN) -1 || retlen == 0)
Perl_croak(aTHX_ "Malformed UTF-8 string in unpack");
}
} else if (!checksum)
while (len-- > 0) {
- U8 ch = *(U8 *) s++;
+ const U8 ch = *(U8 *) s++;
PUSHs(sv_2mortal(newSVuv((UV) ch)));
}
else if (checksum > bits_in_uv)
UV auv;
if (utf8) {
U8 result[UTF8_MAXLEN];
- char *ptr;
+ const char *ptr = s;
STRLEN len;
- ptr = s;
/* Bug: warns about bad utf8 even if we are short on bytes
and will break out of the loop */
if (!uni_to_bytes(aTHX_ &ptr, strend, (char *) result, 1,
#endif /* PERL_PACK_CAN_SHRIEKSIGN */
case 'p':
while (len-- > 0) {
- char *aptr;
+ const char *aptr;
SHIFT_VAR(utf8, s, strend, aptr, datumtype);
- DO_BO_UNPACK_P(aptr);
+ DO_BO_UNPACK_PC(aptr);
/* newSVpv generates undef if aptr is NULL */
PUSHs(sv_2mortal(newSVpv(aptr, 0)));
}
continue;
}
if (++bytes >= sizeof(UV)) { /* promote to string */
- char *t;
- STRLEN n_a;
+ const char *t;
sv = Perl_newSVpvf(aTHX_ "%.*"UVf, (int)TYPE_DIGITS(UV), auv);
while (s < strend) {
break;
}
}
- t = SvPV(sv, n_a);
+ t = SvPV_nolen_const(sv);
while (*t == '0')
t++;
sv_chop(sv, t);
if (sizeof(char*) <= strend - s) {
char *aptr;
SHIFT_VAR(utf8, s, strend, aptr, datumtype);
- DO_BO_UNPACK_P(aptr);
+ DO_BO_UNPACK_PC(aptr);
/* newSVpvn generates undef if aptr is NULL */
PUSHs(sv_2mortal(newSVpvn(aptr, len)));
}
PL_uudmap[' '] = 0;
}
{
- STRLEN l = (STRLEN) (strend - s) * 3 / 4;
+ const STRLEN l = (STRLEN) (strend - s) * 3 / 4;
sv = sv_2mortal(NEWSV(42, l));
if (l) SvPOK_on(sv);
}
len -= 3;
}
if (s < strend) {
- if (*s == '\n') s++;
+ if (*s == '\n') {
+ s++;
+ }
else {
/* possible checksum byte */
- char *skip = s+UTF8SKIP(s);
- if (skip < strend && *skip == '\n') s = skip+1;
+ const char *skip = s+UTF8SKIP(s);
+ if (skip < strend && *skip == '\n')
+ s = skip+1;
}
}
}
I32 gimme = GIMME_V;
STRLEN llen;
STRLEN rlen;
- char *pat = SvPV(left, llen);
- char *s = SvPV(right, rlen);
- char *strend = s + rlen;
- char *patend = pat + llen;
+ const char *pat = SvPV_const(left, llen);
+ const char *s = SvPV_const(right, rlen);
+ const char *strend = s + rlen;
+ const char *patend = pat + llen;
I32 cnt;
PUTBACK;
}
STATIC U8 *
-doencodes(U8 *h, char *s, I32 len)
+doencodes(U8 *h, const char *s, I32 len)
{
*h++ = PL_uuemap[len];
while (len > 2) {
len -= 3;
}
if (len > 0) {
- char r = (len > 1 ? s[1] : '\0');
+ const char r = (len > 1 ? s[1] : '\0');
*h++ = PL_uuemap[(077 & (s[0] >> 2))];
*h++ = PL_uuemap[(077 & (((s[0] << 4) & 060) | ((r >> 4) & 017)))];
*h++ = PL_uuemap[(077 & ((r << 2) & 074))];
}
STATIC SV *
-S_is_an_int(pTHX_ char *s, STRLEN l)
+S_is_an_int(pTHX_ const char *s, STRLEN l)
{
- STRLEN n_a;
- SV *result = newSVpvn(s, l);
- char *result_c = SvPV(result, n_a); /* convenience */
- char *out = result_c;
- bool skip = 1;
- bool ignore = 0;
+ SV *result = newSVpvn(s, l);
+ char *const result_c = SvPV_nolen(result); /* convenience */
+ char *out = result_c;
+ bool skip = 1;
+ bool ignore = 0;
while (*s) {
switch (*s) {
STATIC int
S_div128(pTHX_ SV *pnum, bool *done)
{
- STRLEN len;
- char *s = SvPV(pnum, len);
- int m = 0;
- int r = 0;
- char *t = s;
-
- *done = 1;
- while (*t) {
- int i;
-
- i = m * 10 + (*t - '0');
- m = i & 0x7F;
- r = (i >> 7); /* r < 10 */
- if (r) {
- *done = 0;
+ STRLEN len;
+ char * const s = SvPV(pnum, len);
+ char *t = s;
+ int m = 0;
+
+ *done = 1;
+ while (*t) {
+ const int i = m * 10 + (*t - '0');
+ const int r = (i >> 7); /* r < 10 */
+ m = i & 0x7F;
+ if (r) {
+ *done = 0;
+ }
+ *(t++) = '0' + r;
}
- *(t++) = '0' + r;
- }
- *(t++) = '\0';
- SvCUR_set(pnum, (STRLEN) (t - s));
- return (m);
+ *(t++) = '\0';
+ SvCUR_set(pnum, (STRLEN) (t - s));
+ return (m);
}
-
-
/*
=for apidoc pack_cat
The engine implementing pack() Perl function. Note: parameters next_in_list and
flags are not used. This call should not be used; use packlist instead.
-=cut */
-
+=cut
+*/
void
-Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
+Perl_pack_cat(pTHX_ SV *cat, const char *pat, const char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
{
- tempsym_t sym = { 0 };
- sym.patptr = pat;
- sym.patend = patend;
- sym.flags = FLAG_PACK;
+ tempsym_t sym;
+ PERL_UNUSED_ARG(next_in_list);
+ PERL_UNUSED_ARG(flags);
+
+ TEMPSYM_INIT(&sym, pat, patend, FLAG_PACK);
(void)pack_rec( cat, &sym, beglist, endlist );
}
The engine implementing pack() Perl function.
-=cut */
-
+=cut
+*/
void
-Perl_packlist(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist )
+Perl_packlist(pTHX_ SV *cat, const char *pat, const char *patend, register SV **beglist, SV **endlist )
{
STRLEN no_len;
- tempsym_t sym = { 0 };
+ tempsym_t sym;
- sym.patptr = pat;
- sym.patend = patend;
- sym.flags = FLAG_PACK;
+ TEMPSYM_INIT(&sym, pat, patend, FLAG_PACK);
/* We're going to do changes through SvPVX(cat). Make sure it's valid.
Also make sure any UTF8 flag is loaded */
SvPV_force(cat, no_len);
- if (DO_UTF8(cat)) sym.flags |= FLAG_PARSE_UTF8 | FLAG_DO_UTF8;
+ if (DO_UTF8(cat))
+ sym.flags |= FLAG_PARSE_UTF8 | FLAG_DO_UTF8;
(void)pack_rec( cat, &sym, beglist, endlist );
}
marked_upgrade(pTHX_ SV *sv, tempsym_t *sym_ptr) {
STRLEN len;
tempsym_t *group;
- char *from_ptr, *to_start, *to_ptr, **marks, **m, *from_start, *from_end;
+ const char *from_ptr, *from_start, *from_end, **marks, **m;
+ char *to_start, *to_ptr;
if (SvUTF8(sv)) return;
- from_start = SvPVX(sv);
+ from_start = SvPVX_const(sv);
from_end = from_start + SvCUR(sv);
for (from_ptr = from_start; from_ptr < from_end; from_ptr++)
if (!NATIVE_IS_INVARIANT(*from_ptr)) break;
}
len = (from_end-from_ptr)*UTF8_EXPAND+(from_ptr-from_start)+1;
- New('U', to_start, len, char);
+ Newx(to_start, len, char);
Copy(from_start, to_start, from_ptr-from_start, char);
to_ptr = to_start + (from_ptr-from_start);
- New('U', marks, sym_ptr->level+2, char *);
+ Newx(marks, sym_ptr->level+2, const char *);
for (group=sym_ptr; group; group = group->previous)
marks[group->level] = from_start + group->strbeg;
marks[sym_ptr->level+1] = from_end+1;
if (SvOOK(sv)) {
if (SvIVX(sv)) {
- SvLEN(sv) += SvIVX(sv);
+ SvLEN_set(sv, SvLEN(sv) + SvIVX(sv));
from_start -= SvIVX(sv);
SvIV_set(sv, 0);
}
}
if (SvLEN(sv) != 0)
Safefree(from_start);
- SvPVX(sv) = to_start;
- SvCUR(sv) = to_ptr - to_start;
- SvLEN(sv) = len;
+ SvPV_set(sv, to_start);
+ SvCUR_set(sv, to_ptr - to_start);
+ SvLEN_set(sv, len);
SvUTF8_on(sv);
}
*/
STATIC char *
sv_exp_grow(pTHX_ SV *sv, STRLEN needed) {
- STRLEN cur = SvCUR(sv);
- STRLEN len = SvLEN(sv);
+ const STRLEN cur = SvCUR(sv);
+ const STRLEN len = SvLEN(sv);
STRLEN extend;
if (len - cur > needed) return SvPVX(sv);
extend = needed > len ? needed : len;
I32 items = endlist - beglist;
bool found = next_symbol(symptr);
bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0;
+ bool warn_utf8 = ckWARN(WARN_UTF8);
if (symptr->level == 0 && found && symptr->code == 'U') {
marked_upgrade(aTHX_ cat, symptr);
if (cur < start+symptr->strbeg) {
/* Make sure group starts don't point into the void */
tempsym_t *group;
- STRLEN length = cur-start;
+ const STRLEN length = cur-start;
for (group = symptr;
group && length < group->strbeg;
group = group->previous) group->strbeg = length;
case 'A':
case 'Z':
case 'a': {
- char *aptr;
+ const char *aptr;
fromstr = NEXTFROM;
- aptr = SvPV(fromstr, fromlen);
+ aptr = SvPV_const(fromstr, fromlen);
if (DO_UTF8(fromstr)) {
- char *end, *s;
+ const char *end, *s;
if (!utf8 && !SvUTF8(cat)) {
marked_upgrade(aTHX_ cat, symptr);
}
case 'B':
case 'b': {
- char *str, *end;
+ const char *str, *end;
I32 l, field_len;
U8 bits;
bool utf8_source;
U32 utf8_flags;
fromstr = NEXTFROM;
- str = SvPV(fromstr, fromlen);
+ str = SvPV_const(fromstr, fromlen);
end = str + fromlen;
if (DO_UTF8(fromstr)) {
utf8_source = TRUE;
- utf8_flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY;
+ utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY;
} else {
utf8_source = FALSE;
utf8_flags = 0; /* Unused, but keep compilers happy */
}
case 'H':
case 'h': {
- char *str, *end;
+ const char *str, *end;
I32 l, field_len;
U8 bits;
bool utf8_source;
U32 utf8_flags;
fromstr = NEXTFROM;
- str = SvPV(fromstr, fromlen);
+ str = SvPV_const(fromstr, fromlen);
end = str + fromlen;
if (DO_UTF8(fromstr)) {
utf8_source = TRUE;
- utf8_flags = ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY;
+ utf8_flags = warn_utf8 ? 0 : UTF8_ALLOW_ANY;
} else {
utf8_source = FALSE;
utf8_flags = 0; /* Unused, but keep compilers happy */
W_utf8:
if (cur > end) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
GROWING(0, cat, start, cur, len+UTF8_MAXLEN);
end = start+SvLEN(cat)-UTF8_MAXLEN;
}
cur = (char *) uvuni_to_utf8_flags((U8 *) cur,
NATIVE_TO_UNI(auv),
- ckWARN(WARN_UTF8) ?
+ warn_utf8 ?
0 : UNICODE_ALLOW_ANY);
} else {
if (auv >= 0x100) {
if (!SvUTF8(cat)) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
marked_upgrade(aTHX_ cat, symptr);
lookahead.flags |= FLAG_DO_UTF8;
lookahead.strbeg = symptr->strbeg;
}
if (cur >= end) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
GROWING(0, cat, start, cur, len+1);
end = start+SvLEN(cat)-1;
}
if (utf8) {
U8 buffer[UTF8_MAXLEN], *endb;
endb = uvuni_to_utf8_flags(buffer, auv,
- ckWARN(WARN_UTF8) ?
+ warn_utf8 ?
0 : UNICODE_ALLOW_ANY);
if (cur+(endb-buffer)*UTF8_EXPAND >= end) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
GROWING(0, cat, start, cur,
len+(endb-buffer)*UTF8_EXPAND);
end = start+SvLEN(cat);
} else {
if (cur >= end) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
GROWING(0, cat, start, cur, len+UTF8_MAXLEN);
end = start+SvLEN(cat)-UTF8_MAXLEN;
}
cur = (char *) uvuni_to_utf8_flags((U8 *) cur, auv,
- ckWARN(WARN_UTF8) ?
+ warn_utf8 ?
0 : UNICODE_ALLOW_ANY);
}
}
if (anv < 0) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
Perl_croak(aTHX_ "Cannot compress negative numbers in pack");
}
#endif
char *in = buf + sizeof(buf);
- anv = Perl_floor(anv);
+ anv = Perl_floor(anv);
do {
- NV next = Perl_floor(anv / 128);
+ const NV next = Perl_floor(anv / 128);
if (in <= buf) /* this cannot happen ;-) */
Perl_croak(aTHX_ "Cannot compress integer in pack");
*--in = (unsigned char)(anv - (next * 128)) | 0x80;
PUSH_GROWING_BYTES(utf8, cat, start, cur,
in, (buf + sizeof(buf)) - in);
} else {
- char *from, *result, *in;
+ const char *from;
+ char *result, *in;
SV *norm;
STRLEN len;
bool done;
w_string:
/* Copy string and check for compliance */
- from = SvPV(fromstr, len);
+ from = SvPV_const(fromstr, len);
if ((norm = is_an_int(from, len)) == NULL)
Perl_croak(aTHX_ "Can only compress unsigned integers in pack");
- New('w', result, len, char);
+ Newx(result, len, char);
in = result + len;
done = FALSE;
while (!done) *--in = div128(norm, &done) | 0x80;
/* Fall through! */
case 'p':
while (len-- > 0) {
- char *aptr;
+ const char *aptr;
fromstr = NEXTFROM;
SvGETMAGIC(fromstr);
* of pack() (and all copies of the result) are
* gone.
*/
- if (ckWARN(WARN_PACK) &&
- (SvTEMP(fromstr) || (SvPADTMP(fromstr) &&
- !SvREADONLY(fromstr)))) {
+ if ((SvTEMP(fromstr) || (SvPADTMP(fromstr) &&
+ !SvREADONLY(fromstr))) && ckWARN(WARN_PACK)) {
Perl_warner(aTHX_ packWARN(WARN_PACK),
"Attempt to pack pointer to temporary value");
}
if (SvPOK(fromstr) || SvNIOK(fromstr))
- aptr = SvPV_flags(fromstr, n_a, 0);
+ aptr = SvPV_nomg_const(fromstr, n_a);
else
aptr = SvPV_force_flags(fromstr, n_a, 0);
}
- DO_BO_PACK_P(aptr);
+ DO_BO_PACK_PC(aptr);
PUSH_VAR(utf8, cur, aptr);
}
break;
case 'u': {
- char *aptr, *aend;
+ const char *aptr, *aend;
bool from_utf8;
fromstr = NEXTFROM;
"Field too wide in 'u' format in pack");
len = 63;
}
- aptr = SvPV(fromstr, fromlen);
+ aptr = SvPV_const(fromstr, fromlen);
from_utf8 = DO_UTF8(fromstr);
if (from_utf8) {
aend = aptr + fromlen;
if (!uni_to_bytes(aTHX_ &aptr, aend, buffer, todo,
'u' | TYPE_IS_PACK)) {
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
Perl_croak(aTHX_ "Assertion: string is shorter than advertised");
}
end = doencodes(hunk, buffer, todo);
}
}
*cur = '\0';
- SvCUR(cat) = cur - start;
+ SvCUR_set(cat, cur - start);
no_change:
*symptr = lookahead;
}
dSP; dMARK; dORIGMARK; dTARGET;
register SV *cat = TARG;
STRLEN fromlen;
- register char *pat = SvPVx(*++MARK, fromlen);
- register char *patend = pat + fromlen;
+ SV *pat_sv = *++MARK;
+ register const char *pat = SvPV_const(pat_sv, fromlen);
+ register const char *patend = pat + fromlen;
MARK++;
sv_setpvn(cat, "", 0);
* indent-tabs-mode: t
* End:
*
- * vim: shiftwidth=4:
-*/
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff