/* pp_pack.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
* other pp*.c files for the rest of the pp_ functions.
*/
-
#include "EXTERN.h"
#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 = e_no_len; \
+ (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;
+
+ PERL_ARGS_ASSERT_MUL128;
if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
- SV *tmpNew = newSVpvn("0000000000", 10);
+ SV * const tmpNew = newSVpvs("0000000000");
sv_catsv(tmpNew, sv);
SvREFCNT_dec(sv); /* free old sv */
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_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 */
# 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)
+# elif PTRSIZE == IVSIZE
+# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, IV, void)
+# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, IV, void)
+# define DO_BO_UNPACK_PC(var) DO_BO_UNPACK_PTR(var, l, IV, char)
+# define DO_BO_PACK_PC(var) DO_BO_PACK_PTR(var, l, IV, 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) && \
typedef U8 packprops_t;
#if 'J'-'I' == 1
/* ASCII */
-const packprops_t packprops[512] = {
+STATIC const packprops_t packprops[512] = {
/* normal */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0,
- /* C */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE,
+ /* C */ sizeof(unsigned char),
#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
/* D */ LONG_DOUBLESIZE,
#else
};
#else
/* EBCDIC (or bust) */
-const packprops_t packprops[512] = {
+STATIC const packprops_t packprops[512] = {
/* normal */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
/* w */ sizeof(char) | PACK_SIZE_UNPREDICTABLE | PACK_SIZE_CANNOT_CSUM,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* C */ sizeof(unsigned char) | PACK_SIZE_UNPREDICTABLE,
+ /* C */ sizeof(unsigned char),
#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
/* D */ LONG_DOUBLESIZE,
#else
#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;
- val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen,
+ UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen,
ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
/* We try to process malformed UTF-8 as much as possible (preferrably with
warnings), but these two mean we make no progress in the string and
*(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;
+ 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;
}
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;
+ dVAR;
STRLEN retlen;
- val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, UTF8_CHECK_ONLY);
+ const UV val = utf8n_to_uvchr((U8 *) *s, end-*s, &retlen, UTF8_CHECK_ONLY);
if (val >= 0x100 || !ISUUCHAR(val) ||
retlen == (STRLEN) -1 || retlen == 0) {
*out = 0;
return TRUE;
}
-STATIC void
-bytes_to_uni(pTHX_ U8 *start, STRLEN len, char **dest) {
- U8 buffer[UTF8_MAXLEN];
- U8 *end = start + len;
- char *d = *dest;
+STATIC char *
+S_bytes_to_uni(const U8 *start, STRLEN len, char *dest) {
+ const U8 * const end = start + len;
+
+ PERL_ARGS_ASSERT_BYTES_TO_UNI;
+
while (start < end) {
- int length =
- uvuni_to_utf8_flags(buffer, NATIVE_TO_UNI(*start), 0) - buffer;
- switch(length) {
- case 1:
- *d++ = buffer[0];
- break;
- case 2:
- *d++ = buffer[0];
- *d++ = buffer[1];
- break;
- default:
- Perl_croak(aTHX_ "Perl bug: value %d UTF-8 expands to %d bytes",
- *start, length);
+ const UV uv = NATIVE_TO_ASCII(*start);
+ if (UNI_IS_INVARIANT(uv))
+ *dest++ = (char)(U8)UTF_TO_NATIVE(uv);
+ else {
+ *dest++ = (char)(U8)UTF8_EIGHT_BIT_HI(uv);
+ *dest++ = (char)(U8)UTF8_EIGHT_BIT_LO(uv);
}
start++;
}
- *dest = d;
+ return dest;
}
#define PUSH_BYTES(utf8, cur, buf, len) \
STMT_START { \
- if (utf8) bytes_to_uni(aTHX_ (U8 *) buf, len, &(cur)); \
+ if (utf8) \
+ (cur) = bytes_to_uni((U8 *) buf, len, (cur)); \
else { \
Copy(buf, cur, len, char); \
(cur) += (len); \
STRLEN glen = (in_len); \
if (utf8) glen *= UTF8_EXPAND; \
if ((cur) + glen >= (start) + SvLEN(cat)) { \
- (start) = sv_exp_grow(aTHX_ cat, glen); \
+ (start) = sv_exp_grow(cat, glen); \
(cur) = (start) + SvCUR(cat); \
} \
} STMT_END
#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_set((cat), (cur) - (start)); \
- (start) = sv_exp_grow(aTHX_ cat, gl); \
+ (start) = sv_exp_grow(cat, gl); \
(cur) = (start) + SvCUR(cat); \
} \
PUSH_BYTES(utf8, cur, buf, glen); \
#define PUSH_BYTE(utf8, s, byte) \
STMT_START { \
if (utf8) { \
- U8 au8 = (byte); \
- bytes_to_uni(aTHX_ &au8, 1, &(s)); \
+ const U8 au8 = (byte); \
+ (s) = bytes_to_uni(&au8, 1, (s)); \
} else *(U8 *)(s)++ = (byte); \
} STMT_END
str += retlen; \
} STMT_END
+static const char *_action( const tempsym_t* symptr )
+{
+ return (const char *)(( symptr->flags & FLAG_PACK ) ? "pack" : "unpack");
+}
+
/* Returns the sizeof() struct described by pat */
STATIC I32
S_measure_struct(pTHX_ tempsym_t* symptr)
{
I32 total = 0;
+ PERL_ARGS_ASSERT_MEASURE_STRUCT;
+
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)
{
+ PERL_ARGS_ASSERT_GROUP_END;
+
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';
+
+ PERL_ARGS_ASSERT_GET_NUM;
+
while (isDIGIT(*patptr)) {
if (len >= 0x7FFFFFFF/10)
Perl_croak(aTHX_ "pack/unpack repeat count overflow");
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* const patend = symptr->patend;
+
+ PERL_ARGS_ASSERT_NEXT_SYMBOL;
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;
}
need_utf8(const char *pat, const char *patend)
{
bool first = TRUE;
+
+ PERL_ARGS_ASSERT_NEED_UTF8;
+
while (pat < patend) {
if (pat[0] == '#') {
pat++;
- pat = (char *) 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;
STATIC char
first_symbol(const char *pat, const char *patend) {
+ PERL_ARGS_ASSERT_FIRST_SYMBOL;
+
while (pat < patend) {
if (pat[0] != '#') return pat[0];
pat++;
- pat = (char *) memchr(pat, '\n', patend-pat);
+ pat = (const char *) memchr(pat, '\n', patend-pat);
if (!pat) return 0;
pat++;
}
}
/*
-=for apidoc unpack_str
-
-The engine implementing unpack() Perl function. Note: parameters strbeg, new_s
-and ocnt are not used. This call should not be used, use unpackstring instead.
-
-=cut */
-
-I32
-Perl_unpack_str(pTHX_ char *pat, char *patend, char *s, char *strbeg, char *strend, char **new_s, I32 ocnt, U32 flags)
-{
- tempsym_t sym = { NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, NULL };
- (void)strbeg;
- (void)new_s;
- (void)ocnt;
-
- if (flags & FLAG_DO_UTF8) flags |= FLAG_WAS_UTF8;
- else if (need_utf8(pat, patend)) {
- /* We probably should try to avoid this in case a scalar context call
- wouldn't get to the "U0" */
- STRLEN len = strend - s;
- s = (char *) bytes_to_utf8((U8 *) s, &len);
- SAVEFREEPV(s);
- strend = s + len;
- flags |= FLAG_DO_UTF8;
- }
-
- if (first_symbol(pat, patend) != 'U' && (flags & FLAG_DO_UTF8))
- flags |= FLAG_PARSE_UTF8;
-
- sym.patptr = pat;
- sym.patend = patend;
- sym.flags = flags;
-
- return unpack_rec(&sym, s, s, strend, NULL );
-}
-
-/*
=for apidoc unpackstring
The engine implementing unpack() Perl function. C<unpackstring> puts the
=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 = { NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, NULL };
+ tempsym_t sym;
+
+ PERL_ARGS_ASSERT_UNPACKSTRING;
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 )
+STATIC I32
+S_unpack_rec(pTHX_ tempsym_t* symptr, const char *s, const char *strbeg, const char *strend, const char **new_s )
{
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;
UV cuv = 0;
NV cdouble = 0.0;
bool explicit_length;
const bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0;
bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0;
+
+ PERL_ARGS_ASSERT_UNPACK_REC;
+
symptr->strbeg = s - strbeg;
while (next_symbol(symptr)) {
symptr->previous = &savsym;
symptr->level++;
PUTBACK;
+ if (len && unpack_only_one) len = 1;
while (len--) {
symptr->patptr = savsym.grpbeg;
if (utf8) symptr->flags |= FLAG_PARSE_UTF8;
sv = 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));
+ mXPUSHs(sv);
break;
}
#ifdef PERL_PACK_CAN_SHRIEKSIGN
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) {
}
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 (!(symptr->flags & FLAG_WAS_UTF8))
sv_utf8_downgrade(sv, 0);
}
- XPUSHs(sv_2mortal(sv));
+ mXPUSHs(sv);
s += len;
break;
case 'B':
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]++;
break;
}
- sv = sv_2mortal(NEWSV(35, len ? len : 1));
+ sv = sv_2mortal(newSV(len ? len : 1));
SvPOK_on(sv);
str = SvPVX(sv);
if (datumtype == 'b') {
U8 bits = 0;
- I32 ai32 = len;
+ const I32 ai32 = len;
for (len = 0; len < ai32; len++) {
if (len & 7) bits >>= 1;
else if (utf8) {
}
} else {
U8 bits = 0;
- I32 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;
}
/* Preliminary length estimate, acceptable for utf8 too */
if (howlen == e_star || len > (strend - s) * 2)
len = (strend - s) * 2;
- sv = sv_2mortal(NEWSV(35, len ? len : 1));
+ sv = sv_2mortal(newSV(len ? len : 1));
SvPOK_on(sv);
str = SvPVX(sv);
if (datumtype == 'h') {
}
} else {
U8 bits = 0;
- I32 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;
}
+ case 'C':
+ if (len == 0) {
+ if (explicit_length)
+ /* Switch to "character" mode */
+ utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0;
+ break;
+ }
+ /* FALL THROUGH */
case 'c':
- while (len-- > 0) {
- int aint = SHIFT_BYTE(utf8, s, strend, datumtype);
- if (aint >= 128) /* fake up signed chars */
+ while (len-- > 0 && s < strend) {
+ int aint;
+ if (utf8)
+ {
+ STRLEN retlen;
+ aint = 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");
+ s += retlen;
+ }
+ else
+ aint = *(U8 *)(s)++;
+ if (aint >= 128 && datumtype != 'C') /* fake up signed chars */
aint -= 256;
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)aint)));
+ mPUSHi(aint);
else if (checksum > bits_in_uv)
cdouble += (NV)aint;
else
cuv += aint;
}
break;
- case 'C':
case 'W':
W_checksum:
- if (len == 0) {
- if (explicit_length && datumtype == 'C')
- /* Switch to "character" mode */
- utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0;
- break;
- }
- if (datumtype == 'C' ?
- (symptr->flags & FLAG_DO_UTF8) &&
- !(symptr->flags & FLAG_WAS_UTF8) : utf8) {
+ if (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");
s += retlen;
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV) val)));
+ mPUSHu(val);
else if (checksum > bits_in_uv)
cdouble += (NV) val;
else
}
} else if (!checksum)
while (len-- > 0) {
- U8 ch = *(U8 *) s++;
- PUSHs(sv_2mortal(newSVuv((UV) ch)));
+ const U8 ch = *(U8 *) s++;
+ mPUSHu(ch);
}
else if (checksum > bits_in_uv)
while (len-- > 0) cdouble += (NV) *(U8 *) s++;
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,
s += retlen;
}
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV) auv)));
+ mPUSHu(auv);
else if (checksum > bits_in_uv)
cdouble += (NV) auv;
else
SHIFT_VAR(utf8, s, strend, ashort, datumtype);
DO_BO_UNPACK(ashort, s);
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)ashort)));
+ mPUSHi(ashort);
else if (checksum > bits_in_uv)
cdouble += (NV)ashort;
else
ai16 -= 65536;
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)ai16)));
+ mPUSHi(ai16);
else if (checksum > bits_in_uv)
cdouble += (NV)ai16;
else
SHIFT_VAR(utf8, s, strend, aushort, datumtype);
DO_BO_UNPACK(aushort, s);
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV) aushort)));
+ mPUSHu(aushort);
else if (checksum > bits_in_uv)
cdouble += (NV)aushort;
else
au16 = vtohs(au16);
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV)au16)));
+ mPUSHu(au16);
else if (checksum > bits_in_uv)
cdouble += (NV) au16;
else
ai16 = (I16) vtohs((U16) ai16);
# endif /* HAS_VTOHS */
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)ai16)));
+ mPUSHi(ai16);
else if (checksum > bits_in_uv)
cdouble += (NV) ai16;
else
SHIFT_VAR(utf8, s, strend, aint, datumtype);
DO_BO_UNPACK(aint, i);
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)aint)));
+ mPUSHi(aint);
else if (checksum > bits_in_uv)
cdouble += (NV)aint;
else
SHIFT_VAR(utf8, s, strend, auint, datumtype);
DO_BO_UNPACK(auint, i);
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV)auint)));
+ mPUSHu(auint);
else if (checksum > bits_in_uv)
cdouble += (NV)auint;
else
Perl_croak(aTHX_ "'j' not supported on this platform");
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSViv(aiv)));
+ mPUSHi(aiv);
else if (checksum > bits_in_uv)
cdouble += (NV)aiv;
else
Perl_croak(aTHX_ "'J' not supported on this platform");
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSVuv(auv)));
+ mPUSHu(auv);
else if (checksum > bits_in_uv)
cdouble += (NV)auv;
else
SHIFT_VAR(utf8, s, strend, along, datumtype);
DO_BO_UNPACK(along, l);
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)along)));
+ mPUSHi(along);
else if (checksum > bits_in_uv)
cdouble += (NV)along;
else
if (ai32 > 2147483647) ai32 -= 4294967296;
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)ai32)));
+ mPUSHi(ai32);
else if (checksum > bits_in_uv)
cdouble += (NV)ai32;
else
SHIFT_VAR(utf8, s, strend, aulong, datumtype);
DO_BO_UNPACK(aulong, l);
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV)aulong)));
+ mPUSHu(aulong);
else if (checksum > bits_in_uv)
cdouble += (NV)aulong;
else
au32 = vtohl(au32);
#endif
if (!checksum)
- PUSHs(sv_2mortal(newSVuv((UV)au32)));
+ mPUSHu(au32);
else if (checksum > bits_in_uv)
cdouble += (NV)au32;
else
ai32 = (I32)vtohl((U32)ai32);
# endif
if (!checksum)
- PUSHs(sv_2mortal(newSViv((IV)ai32)));
+ mPUSHi(ai32);
else if (checksum > bits_in_uv)
cdouble += (NV)ai32;
else
#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_PC(aptr);
/* newSVpv generates undef if aptr is NULL */
- PUSHs(sv_2mortal(newSVpv(aptr, 0)));
+ mPUSHs(newSVpv(aptr, 0));
}
break;
case 'w':
/* UTF8_IS_XXXXX not right here - using constant 0x80 */
if (ch < 0x80) {
bytes = 0;
- PUSHs(sv_2mortal(newSVuv(auv)));
+ mPUSHu(auv);
len--;
auv = 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);
+ sv = Perl_newSVpvf(aTHX_ "%.*"UVuf, (int)TYPE_DIGITS(UV), auv);
while (s < strend) {
ch = SHIFT_BYTE(utf8, s, strend, datumtype);
sv = mul128(sv, (U8)(ch & 0x7f));
break;
}
}
- t = SvPV(sv, n_a);
+ t = SvPV_nolen_const(sv);
while (*t == '0')
t++;
sv_chop(sv, t);
- PUSHs(sv_2mortal(sv));
+ mPUSHs(sv);
len--;
auv = 0;
}
if (symptr->howlen == e_star)
Perl_croak(aTHX_ "'P' must have an explicit size in unpack");
EXTEND(SP, 1);
- if (sizeof(char*) <= strend - s) {
+ if (s + sizeof(char*) <= strend) {
char *aptr;
SHIFT_VAR(utf8, s, strend, aptr, datumtype);
DO_BO_UNPACK_PC(aptr);
/* newSVpvn generates undef if aptr is NULL */
- PUSHs(sv_2mortal(newSVpvn(aptr, len)));
+ PUSHs(newSVpvn_flags(aptr, len, SVs_TEMP));
}
break;
#ifdef HAS_QUAD
SHIFT_VAR(utf8, s, strend, aquad, datumtype);
DO_BO_UNPACK(aquad, 64);
if (!checksum)
- PUSHs(sv_2mortal(aquad >= IV_MIN && aquad <= IV_MAX ?
- newSViv((IV)aquad) : newSVnv((NV)aquad)));
+ mPUSHs(aquad >= IV_MIN && aquad <= IV_MAX ?
+ newSViv((IV)aquad) : newSVnv((NV)aquad));
else if (checksum > bits_in_uv)
cdouble += (NV)aquad;
else
SHIFT_VAR(utf8, s, strend, auquad, datumtype);
DO_BO_UNPACK(auquad, 64);
if (!checksum)
- PUSHs(sv_2mortal(auquad <= UV_MAX ?
- newSVuv((UV)auquad):newSVnv((NV)auquad)));
+ mPUSHs(auquad <= UV_MAX ?
+ newSVuv((UV)auquad) : newSVnv((NV)auquad));
else if (checksum > bits_in_uv)
cdouble += (NV)auquad;
else
SHIFT_VAR(utf8, s, strend, afloat, datumtype);
DO_BO_UNPACK_N(afloat, float);
if (!checksum)
- PUSHs(sv_2mortal(newSVnv((NV)afloat)));
+ mPUSHn(afloat);
else
cdouble += afloat;
}
SHIFT_VAR(utf8, s, strend, adouble, datumtype);
DO_BO_UNPACK_N(adouble, double);
if (!checksum)
- PUSHs(sv_2mortal(newSVnv((NV)adouble)));
+ mPUSHn(adouble);
else
cdouble += adouble;
}
SHIFT_VAR(utf8, s, strend, anv, datumtype);
DO_BO_UNPACK_N(anv, NV);
if (!checksum)
- PUSHs(sv_2mortal(newSVnv(anv)));
+ mPUSHn(anv);
else
cdouble += anv;
}
SHIFT_VAR(utf8, s, strend, aldouble, datumtype);
DO_BO_UNPACK_N(aldouble, long double);
if (!checksum)
- PUSHs(sv_2mortal(newSVnv((NV)aldouble)));
+ mPUSHn(aldouble);
else
cdouble += aldouble;
}
break;
#endif
case 'u':
- /* MKS:
- * Initialise the decode mapping. By using a table driven
- * algorithm, the code will be character-set independent
- * (and just as fast as doing character arithmetic)
- */
- if (PL_uudmap['M'] == 0) {
- int i;
-
- for (i = 0; i < sizeof(PL_uuemap); i += 1)
- PL_uudmap[(U8)PL_uuemap[i]] = i;
- /*
- * Because ' ' and '`' map to the same value,
- * we need to decode them both the same.
- */
- PL_uudmap[' '] = 0;
- }
{
- STRLEN l = (STRLEN) (strend - s) * 3 / 4;
- sv = sv_2mortal(NEWSV(42, l));
+ const STRLEN l = (STRLEN) (strend - s) * 3 / 4;
+ sv = sv_2mortal(newSV(l));
if (l) SvPOK_on(sv);
}
if (utf8) {
while (next_uni_uu(aTHX_ &s, strend, &len)) {
I32 a, b, c, d;
- char hunk[4];
+ char hunk[3];
- hunk[3] = '\0';
while (len > 0) {
next_uni_uu(aTHX_ &s, strend, &a);
next_uni_uu(aTHX_ &s, strend, &b);
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;
}
}
}
} else {
while (s < strend && *s > ' ' && ISUUCHAR(*s)) {
I32 a, b, c, d;
- char hunk[4];
+ char hunk[3];
- hunk[3] = '\0';
len = PL_uudmap[*(U8*)s++] & 077;
while (len > 0) {
if (s < strend && ISUUCHAR(*s))
}
sv = newSVuv(cuv);
}
- XPUSHs(sv_2mortal(sv));
+ mXPUSHs(sv);
checksum = 0;
}
PP(pp_unpack)
{
+ dVAR;
dSP;
dPOPPOPssrl;
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;
+
+ PERL_ARGS_ASSERT_IS_AN_INT;
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;
+
+ PERL_ARGS_ASSERT_DIV128;
+
+ *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);
}
-#define TEMPSYM_INIT(symptr, p, e) \
- 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 = FLAG_PACK; \
- (symptr)->strbeg = 0; \
- (symptr)->previous = NULL; \
- } STMT_END
-
-/*
-=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 */
-
-
-void
-Perl_pack_cat(pTHX_ SV *cat, char *pat, register char *patend, register SV **beglist, SV **endlist, SV ***next_in_list, U32 flags)
-{
- tempsym_t sym;
- (void)next_in_list;
- (void)flags;
-
- TEMPSYM_INIT(&sym, pat, patend);
-
- (void)pack_rec( cat, &sym, beglist, endlist );
-}
-
-
/*
=for apidoc packlist
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;
+ dVAR;
tempsym_t sym;
- TEMPSYM_INIT(&sym, pat, patend);
+ PERL_ARGS_ASSERT_PACKLIST;
+
+ 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;
+ SvPV_force_nolen(cat);
+ 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;
Only grows the string if there is an actual lack of space
*/
STATIC char *
-sv_exp_grow(pTHX_ SV *sv, STRLEN needed) {
- STRLEN cur = SvCUR(sv);
- STRLEN len = SvLEN(sv);
+S_sv_exp_grow(pTHX_ SV *sv, STRLEN needed) {
+ const STRLEN cur = SvCUR(sv);
+ const STRLEN len = SvLEN(sv);
STRLEN extend;
+
+ PERL_ARGS_ASSERT_SV_EXP_GROW;
+
if (len - cur > needed) return SvPVX(sv);
extend = needed > len ? needed : len;
return SvGROW(sv, len+extend+1);
SV **
S_pack_rec(pTHX_ SV *cat, tempsym_t* symptr, SV **beglist, SV **endlist )
{
+ dVAR;
tempsym_t lookahead;
I32 items = endlist - beglist;
bool found = next_symbol(symptr);
bool utf8 = (symptr->flags & FLAG_PARSE_UTF8) ? 1 : 0;
+ bool warn_utf8 = ckWARN(WARN_UTF8);
+
+ PERL_ARGS_ASSERT_PACK_REC;
if (symptr->level == 0 && found && symptr->code == 'U') {
marked_upgrade(aTHX_ cat, symptr);
SV *fromstr;
STRLEN fromlen;
I32 len;
- SV *lengthcode = Nullsv;
+ SV *lengthcode = NULL;
I32 datumtype = symptr->code;
howlen_t howlen = symptr->howlen;
char *start = SvPVX(cat);
if (strchr("aAZ", lookahead.code)) {
if (lookahead.howlen == e_number) count = lookahead.length;
else {
- if (items > 0)
+ if (items > 0) {
+ if (SvGAMAGIC(*beglist)) {
+ /* Avoid reading the active data more than once
+ by copying it to a temporary. */
+ STRLEN len;
+ const char *const pv = SvPV_const(*beglist, len);
+ SV *const temp
+ = newSVpvn_flags(pv, len,
+ SVs_TEMP | SvUTF8(*beglist));
+ *beglist = temp;
+ }
count = DO_UTF8(*beglist) ?
sv_len_utf8(*beglist) : sv_len(*beglist);
+ }
else count = 0;
if (lookahead.code == 'Z') count++;
}
if (savsym.howlen == e_star && beglist == endlist)
break; /* No way to continue */
}
+ items = endlist - beglist;
lookahead.flags = symptr->flags & ~group_modifiers;
goto no_change;
}
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 */
if (datumtype == 'B')
while (l++ < len) {
if (utf8_source) {
- UV val;
+ UV val = 0;
NEXT_UNI_VAL(val, cur, str, end, utf8_flags);
bits |= val & 1;
} else bits |= *str++ & 1;
/* datumtype == 'b' */
while (l++ < len) {
if (utf8_source) {
- UV val;
+ UV val = 0;
NEXT_UNI_VAL(val, cur, str, end, utf8_flags);
if (val & 1) bits |= 0x80;
} else if (*str++ & 1)
}
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 */
if (datumtype == 'H')
while (l++ < len) {
if (utf8_source) {
- UV val;
+ UV val = 0;
NEXT_UNI_VAL(val, cur, str, end, utf8_flags);
if (val < 256 && isALPHA(val))
bits |= (val + 9) & 0xf;
else
while (l++ < len) {
if (utf8_source) {
- UV val;
+ UV val = 0;
NEXT_UNI_VAL(val, cur, str, end, utf8_flags);
if (val < 256 && isALPHA(val))
bits |= ((val + 9) & 0xf) << 4;
ckWARN(WARN_PACK))
Perl_warner(aTHX_ packWARN(WARN_PACK),
"Character in 'c' format wrapped in pack");
- PUSH_BYTE(utf8, cur, aiv & 0xff);
+ PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff));
}
break;
case 'C':
utf8 = (symptr->flags & FLAG_DO_UTF8) ? 1 : 0;
break;
}
- GROWING(0, cat, start, cur, len);
while (len-- > 0) {
IV aiv;
fromstr = NEXTFROM;
ckWARN(WARN_PACK))
Perl_warner(aTHX_ packWARN(WARN_PACK),
"Character in 'C' format wrapped in pack");
- *cur++ = aiv & 0xff;
+ PUSH_BYTE(utf8, cur, (U8)(aiv & 0xff));
}
break;
case 'W': {
char *end;
- U8 in_bytes = IN_BYTES;
+ U8 in_bytes = (U8)IN_BYTES;
end = start+SvLEN(cat)-1;
if (utf8) end -= UTF8_MAXLEN-1;
}
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 (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';
len+(endb-buffer)*UTF8_EXPAND);
end = start+SvLEN(cat);
}
- bytes_to_uni(aTHX_ buffer, endb-buffer, &cur);
+ cur = bytes_to_uni(buffer, endb-buffer, cur);
} else {
if (cur >= end) {
*cur = '\0';
end = start+SvLEN(cat)-UTF8_MAXLEN;
}
cur = (char *) uvuni_to_utf8_flags((U8 *) cur, auv,
- ckWARN(WARN_UTF8) ?
+ warn_utf8 ?
0 : UNICODE_ALLOW_ANY);
}
}
any OS that needs it, or removed if and when VOS implements
posix-976 (suggestion to support mapping to infinity).
Paul.Green@stratus.com 02-04-02. */
+{
+extern const float _float_constants[];
if (anv > FLT_MAX)
afloat = _float_constants[0]; /* single prec. inf. */
else if (anv < -FLT_MAX)
afloat = _float_constants[0]; /* single prec. inf. */
else afloat = (float) anv;
+}
#else /* __VOS__ */
# if defined(VMS) && !defined(__IEEE_FP)
/* IEEE fp overflow shenanigans are unavailable on VAX and optional
for any OS that needs it, or removed if and when VOS
implements posix-976 (suggestion to support mapping to
infinity). Paul.Green@stratus.com 02-04-02. */
+{
+extern const double _double_constants[];
if (anv > DBL_MAX)
adouble = _double_constants[0]; /* double prec. inf. */
else if (anv < -DBL_MAX)
adouble = _double_constants[0]; /* double prec. inf. */
else adouble = (double) anv;
+}
#else /* __VOS__ */
# if defined(VMS) && !defined(__IEEE_FP)
/* IEEE fp overflow shenanigans are unavailable on VAX and optional
#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);
if (!SvOK(fromstr)) aptr = NULL;
else {
- STRLEN n_a;
/* XXX better yet, could spirit away the string to
* a safe spot and hang on to it until the result
* 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_nolen(fromstr);
else
- aptr = SvPV_force_flags(fromstr, n_a, 0);
+ aptr = SvPV_force_flags_nolen(fromstr, 0);
}
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;
if (len <= 2) len = 45;
else len = len / 3 * 3;
if (len >= 64) {
- Perl_warner(aTHX_ packWARN(WARN_PACK),
+ if (ckWARN(WARN_PACK))
+ Perl_warner(aTHX_ packWARN(WARN_PACK),
"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;
PP(pp_pack)
{
- dSP; dMARK; dORIGMARK; dTARGET;
+ dVAR; 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