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a0d0e21e 1/* handy.h
a687059c 2 *
4eb8286e 3 * Copyright (c) 1991-1999, Larry Wall
a687059c 4 *
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5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
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8 */
9
85e6fe83 10#if !defined(__STDC__)
378cc40b
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11#ifdef NULL
12#undef NULL
13#endif
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14#ifndef I286
15# define NULL 0
16#else
17# define NULL 0L
18#endif
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19#endif
20
378cc40b 21#define Null(type) ((type)NULL)
8d063cd8 22#define Nullch Null(char*)
760ac839 23#define Nullfp Null(PerlIO*)
79072805 24#define Nullsv Null(SV*)
8d063cd8 25
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26#ifdef TRUE
27#undef TRUE
28#endif
29#ifdef FALSE
30#undef FALSE
31#endif
32#define TRUE (1)
33#define FALSE (0)
34
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35
36/* XXX Configure ought to have a test for a boolean type, if I can
37 just figure out all the headers such a test needs.
38 Andy Dougherty August 1996
39*/
232e078e 40/* bool is built-in for g++-2.6.3, which might be used for an extension.
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41 If the extension includes <_G_config.h> before this file then
42 _G_HAVE_BOOL will be properly set. If, however, the extension includes
43 this file first, then you will have to manually set -DHAS_BOOL in
44 your command line to avoid a conflict.
45*/
46#ifdef _G_HAVE_BOOL
47# if _G_HAVE_BOOL
48# ifndef HAS_BOOL
49# define HAS_BOOL 1
50# endif
51# endif
52#endif
53
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54/* The NeXT dynamic loader headers will not build with the bool macro
55 So declare them now to clear confusion.
56*/
8f1f23e8 57#if defined(NeXT) || defined(__NeXT__)
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58# undef FALSE
59# undef TRUE
60 typedef enum bool { FALSE = 0, TRUE = 1 } bool;
61# define ENUM_BOOL 1
62# ifndef HAS_BOOL
63# define HAS_BOOL 1
64# endif /* !HAS_BOOL */
8f1f23e8 65#endif /* NeXT || __NeXT__ */
641d3f0b 66
5d94fbed 67#ifndef HAS_BOOL
61bb5906 68# if defined(UTS) || defined(VMS)
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69# define bool int
70# else
71# define bool char
72# endif
a687059c 73#endif
0d3e774c 74
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75/* XXX A note on the perl source internal type system. The
76 original intent was that I32 be *exactly* 32 bits.
77
78 Currently, we only guarantee that I32 is *at least* 32 bits.
79 Specifically, if int is 64 bits, then so is I32. (This is the case
80 for the Cray.) This has the advantage of meshing nicely with
81 standard library calls (where we pass an I32 and the library is
82 expecting an int), but the disadvantage that an I32 is not 32 bits.
83 Andy Dougherty August 1996
24fef2a7 84
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85 There is no guarantee that there is *any* integral type with
86 exactly 32 bits. It is perfectly legal for a system to have
87 sizeof(short) == sizeof(int) == sizeof(long) == 8.
693762b4 88
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89 Similarly, there is no guarantee that I16 and U16 have exactly 16
90 bits.
693762b4 91
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92 For dealing with issues that may arise from various 32/64-bit
93 systems, we will ask Configure to check out
94 SHORTSIZE == sizeof(short)
95 INTSIZE == sizeof(int)
96 LONGSIZE == sizeof(long)
97 LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
98 PTRSIZE == sizeof(void *)
99 DOUBLESIZE == sizeof(double)
100 LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
101 Most of these are currently unused, but they are mentioned here so
102 metaconfig will include the appropriate tests in Configure and
103 we can then start to consider how best to deal with long long
104 variables.
105 Andy Dougherty April 1998
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106*/
107
d8668976 108#if defined(UINT8_MAX) && defined(INT16_MAX) && defined(INT32_MAX)
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109
110typedef int8_t I8;
111typedef uint8_t U8;
112/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
113 Please search CHAR_MAX in perl.h for further details. */
114#define U8_MAX UINT8_MAX
115#define U8_MIN UINT8_MIN
116
117typedef int16_t I16;
118typedef uint16_t U16;
119#define I16_MAX INT16_MAX
120#define I16_MIN INT16_MIN
121#define U16_MAX UINT16_MAX
122#define U16_MIN UINT16_MIN
123
124typedef int32_t I32;
125typedef uint32_t U32;
126#define I32_MAX INT32_MAX
127#define I32_MIN INT32_MIN
128#define U32_MAX UINT32_MAX
129#define U32_MIN UINT32_MIN
130
131#else
132
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133typedef char I8;
134typedef unsigned char U8;
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135/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
136 Please search CHAR_MAX in perl.h for further details. */
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137#define U8_MAX PERL_UCHAR_MAX
138#define U8_MIN PERL_UCHAR_MIN
79072805 139
5ff3f7a4 140/* Beware. SHORTSIZE > 2 in Cray C90ties. */
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141typedef short I16;
142typedef unsigned short U16;
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143#define I16_MAX PERL_SHORT_MAX
144#define I16_MIN PERL_SHORT_MIN
145#define U16_MAX PERL_USHORT_MAX
146#define U16_MIN PERL_USHORT_MIN
79072805 147
c4f23d77 148#if LONGSIZE > 4
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149 typedef int I32;
150 typedef unsigned int U32;
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151# define I32_MAX PERL_INT_MAX
152# define I32_MIN PERL_INT_MIN
153# define U32_MAX PERL_UINT_MAX
154# define U32_MIN PERL_UINT_MIN
79072805 155#else
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156 typedef long I32;
157 typedef unsigned long U32;
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158# define I32_MAX PERL_LONG_MAX
159# define I32_MIN PERL_LONG_MIN
160# define U32_MAX PERL_ULONG_MAX
161# define U32_MIN PERL_ULONG_MIN
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162#endif
163
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164#endif
165
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166#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
167#define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
168#define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
169
ff68c719 170#define Ctl(ch) ((ch) & 037)
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171
172#define strNE(s1,s2) (strcmp(s1,s2))
173#define strEQ(s1,s2) (!strcmp(s1,s2))
174#define strLT(s1,s2) (strcmp(s1,s2) < 0)
175#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
176#define strGT(s1,s2) (strcmp(s1,s2) > 0)
177#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
178#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
179#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 180
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181#ifdef HAS_MEMCMP
182# define memNE(s1,s2,l) (memcmp(s1,s2,l))
183# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
184#else
185# define memNE(s1,s2,l) (bcmp(s1,s2,l))
186# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
187#endif
188
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189/*
190 * Character classes.
191 *
192 * Unfortunately, the introduction of locales means that we
193 * can't trust isupper(), etc. to tell the truth. And when
194 * it comes to /\w+/ with tainting enabled, we *must* be able
195 * to trust our character classes.
196 *
197 * Therefore, the default tests in the text of Perl will be
198 * independent of locale. Any code that wants to depend on
199 * the current locale will use the tests that begin with "lc".
200 */
201
2304df62
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202#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
203# ifndef CTYPE256
204# define CTYPE256
205# endif
206#endif
207
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208#define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
209#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
210#define isALPHA(c) (isUPPER(c) || isLOWER(c))
211#define isSPACE(c) \
212 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
213#define isDIGIT(c) ((c) >= '0' && (c) <= '9')
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214#ifdef EBCDIC
215 /* In EBCDIC we do not do locales: therefore() isupper() is fine. */
216# define isUPPER(c) isupper(c)
217# define isLOWER(c) islower(c)
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218# define isALNUMC(c) isalnum(c)
219# define isASCII(c) isascii(c)
220# define isCNTRL(c) iscntrl(c)
221# define isGRAPH(c) isgraph(c)
9d116dd7 222# define isPRINT(c) isprint(c)
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223# define isPUNCT(c) ispunct(c)
224# define isXDIGIT(c) isxdigit(c)
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225# define toUPPER(c) toupper(c)
226# define toLOWER(c) tolower(c)
227#else
228# define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
229# define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
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230# define isALNUMC(c) (isALPHA(c) || isDIGIT(c))
231# define isASCII(c) ((c) <= 127)
232# define isCNTRL(c) ((c) < ' ')
233# define isGRAPH(c) (isALNUM(c) || isPUNCT(c))
9d116dd7 234# define isPRINT(c) (((c) > 32 && (c) < 127) || isSPACE(c))
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235# define isPUNCT(c) (((c) >= 33 && (c) <= 47) || ((c) >= 58 && (c) <= 64) || ((c) >= 91 && (c) <= 96) || ((c) >= 123 && (c) <= 126))
236# define isXDIGIT(c) (isdigit(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
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237# define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
238# define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
239#endif
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240
241#ifdef USE_NEXT_CTYPE
242
243# define isALNUM_LC(c) \
37bd1396 244 (NXIsAlNum((unsigned int)(c)) || (char)(c) == '_')
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245# define isIDFIRST_LC(c) \
246 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
247# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
248# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
249# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
250# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
251# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
37bd1396 252# define isALNUMC_LC(c) NXIsAlNum((unsigned int)(c))
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253# define isCNTRL_LC(c) NXIsCntrl((unsigned int)(c))
254# define isGRAPH_LC(c) NXIsGraph((unsigned int)(c))
ff68c719 255# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
b8c5462f 256# define isPUNCT_LC(c) NXIsPunct((unsigned int)(c))
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257# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
258# define toLOWER_LC(c) NXToLower((unsigned int)(c))
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259
260#else /* !USE_NEXT_CTYPE */
b8c5462f 261
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262# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
263
b8c5462f 264# define isALNUM_LC(c) (isalnum((unsigned char)(c)) || (char)(c) == '_')
ff68c719 265# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
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266# define isALPHA_LC(c) isalpha((unsigned char)(c))
267# define isSPACE_LC(c) isspace((unsigned char)(c))
268# define isDIGIT_LC(c) isdigit((unsigned char)(c))
269# define isUPPER_LC(c) isupper((unsigned char)(c))
270# define isLOWER_LC(c) islower((unsigned char)(c))
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271# define isALNUMC_LC(c) isalnum((unsigned char)(c))
272# define isCNTRL_LC(c) iscntrl((unsigned char)(c))
273# define isGRAPH_LC(c) isgraph((unsigned char)(c))
bbce6d69 274# define isPRINT_LC(c) isprint((unsigned char)(c))
b8c5462f 275# define isPUNCT_LC(c) ispunct((unsigned char)(c))
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276# define toUPPER_LC(c) toupper((unsigned char)(c))
277# define toLOWER_LC(c) tolower((unsigned char)(c))
278
279# else
280
b8c5462f 281# define isALNUM_LC(c) (isascii(c) && (isalnum(c) || (c) == '_'))
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282# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
283# define isALPHA_LC(c) (isascii(c) && isalpha(c))
284# define isSPACE_LC(c) (isascii(c) && isspace(c))
285# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
286# define isUPPER_LC(c) (isascii(c) && isupper(c))
287# define isLOWER_LC(c) (isascii(c) && islower(c))
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288# define isALNUMC_LC(c) (isascii(c) && isalnum(c))
289# define isCNTRL_LC(c) (isascii(c) && iscntrl(c))
290# define isGRAPH_LC(c) (isascii(c) && isgraph(c))
bbce6d69 291# define isPRINT_LC(c) (isascii(c) && isprint(c))
b8c5462f 292# define isPUNCT_LC(c) (isascii(c) && ispunct(c))
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293# define toUPPER_LC(c) toupper(c)
294# define toLOWER_LC(c) tolower(c)
295
296# endif
a0d0e21e 297#endif /* USE_NEXT_CTYPE */
55204971 298
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299#define isALNUM_uni(c) is_uni_alnum(c)
300#define isIDFIRST_uni(c) is_uni_idfirst(c)
301#define isALPHA_uni(c) is_uni_alpha(c)
302#define isSPACE_uni(c) is_uni_space(c)
303#define isDIGIT_uni(c) is_uni_digit(c)
304#define isUPPER_uni(c) is_uni_upper(c)
305#define isLOWER_uni(c) is_uni_lower(c)
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306#define isALNUMC_uni(c) is_uni_alnumc(c)
307#define isASCII_uni(c) is_uni_ascii(c)
308#define isCNTRL_uni(c) is_uni_cntrl(c)
309#define isGRAPH_uni(c) is_uni_graph(c)
a0ed51b3 310#define isPRINT_uni(c) is_uni_print(c)
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311#define isPUNCT_uni(c) is_uni_punct(c)
312#define isXDIGIT_uni(c) is_uni_xdigit(c)
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313#define toUPPER_uni(c) to_uni_upper(c)
314#define toTITLE_uni(c) to_uni_title(c)
315#define toLOWER_uni(c) to_uni_lower(c)
316
317#define isALNUM_LC_uni(c) (c < 256 ? isALNUM_LC(c) : is_uni_alnum_lc(c))
318#define isIDFIRST_LC_uni(c) (c < 256 ? isIDFIRST_LC(c) : is_uni_idfirst_lc(c))
319#define isALPHA_LC_uni(c) (c < 256 ? isALPHA_LC(c) : is_uni_alpha_lc(c))
320#define isSPACE_LC_uni(c) (c < 256 ? isSPACE_LC(c) : is_uni_space_lc(c))
321#define isDIGIT_LC_uni(c) (c < 256 ? isDIGIT_LC(c) : is_uni_digit_lc(c))
322#define isUPPER_LC_uni(c) (c < 256 ? isUPPER_LC(c) : is_uni_upper_lc(c))
323#define isLOWER_LC_uni(c) (c < 256 ? isLOWER_LC(c) : is_uni_lower_lc(c))
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324#define isALNUMC_LC_uni(c) (c < 256 ? isALNUMC_LC(c) : is_uni_alnumc_lc(c))
325#define isCNTRL_LC_uni(c) (c < 256 ? isCNTRL_LC(c) : is_uni_cntrl_lc(c))
326#define isGRAPH_LC_uni(c) (c < 256 ? isGRAPH_LC(c) : is_uni_graph_lc(c))
a0ed51b3 327#define isPRINT_LC_uni(c) (c < 256 ? isPRINT_LC(c) : is_uni_print_lc(c))
b8c5462f 328#define isPUNCT_LC_uni(c) (c < 256 ? isPUNCT_LC(c) : is_uni_punct_lc(c))
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329#define toUPPER_LC_uni(c) (c < 256 ? toUPPER_LC(c) : to_uni_upper_lc(c))
330#define toTITLE_LC_uni(c) (c < 256 ? toUPPER_LC(c) : to_uni_title_lc(c))
331#define toLOWER_LC_uni(c) (c < 256 ? toLOWER_LC(c) : to_uni_lower_lc(c))
332
333#define isALNUM_utf8(p) is_utf8_alnum(p)
334#define isIDFIRST_utf8(p) is_utf8_idfirst(p)
335#define isALPHA_utf8(p) is_utf8_alpha(p)
336#define isSPACE_utf8(p) is_utf8_space(p)
337#define isDIGIT_utf8(p) is_utf8_digit(p)
338#define isUPPER_utf8(p) is_utf8_upper(p)
339#define isLOWER_utf8(p) is_utf8_lower(p)
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340#define isALNUMC_utf8(p) is_utf8_alnumc(p)
341#define isASCII_utf8(p) is_utf8_ascii(p)
342#define isCNTRL_utf8(p) is_utf8_cntrl(p)
343#define isGRAPH_utf8(p) is_utf8_graph(p)
a0ed51b3 344#define isPRINT_utf8(p) is_utf8_print(p)
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345#define isPUNCT_utf8(p) is_utf8_punct(p)
346#define isXDIGIT_utf8(p) is_utf8_xdigit(p)
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347#define toUPPER_utf8(p) to_utf8_upper(p)
348#define toTITLE_utf8(p) to_utf8_title(p)
349#define toLOWER_utf8(p) to_utf8_lower(p)
350
351#define isALNUM_LC_utf8(p) isALNUM_LC_uni(utf8_to_uv(p, 0))
352#define isIDFIRST_LC_utf8(p) isIDFIRST_LC_uni(utf8_to_uv(p, 0))
353#define isALPHA_LC_utf8(p) isALPHA_LC_uni(utf8_to_uv(p, 0))
354#define isSPACE_LC_utf8(p) isSPACE_LC_uni(utf8_to_uv(p, 0))
355#define isDIGIT_LC_utf8(p) isDIGIT_LC_uni(utf8_to_uv(p, 0))
356#define isUPPER_LC_utf8(p) isUPPER_LC_uni(utf8_to_uv(p, 0))
357#define isLOWER_LC_utf8(p) isLOWER_LC_uni(utf8_to_uv(p, 0))
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358#define isALNUMC_LC_utf8(p) isALNUMC_LC_uni(utf8_to_uv(p, 0))
359#define isCNTRL_LC_utf8(p) isCNTRL_LC_uni(utf8_to_uv(p, 0))
360#define isGRAPH_LC_utf8(p) isGRAPH_LC_uni(utf8_to_uv(p, 0))
a0ed51b3 361#define isPRINT_LC_utf8(p) isPRINT_LC_uni(utf8_to_uv(p, 0))
b8c5462f 362#define isPUNCT_LC_utf8(p) isPUNCT_LC_uni(utf8_to_uv(p, 0))
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363#define toUPPER_LC_utf8(p) toUPPER_LC_uni(utf8_to_uv(p, 0))
364#define toTITLE_LC_utf8(p) toTITLE_LC_uni(utf8_to_uv(p, 0))
365#define toLOWER_LC_utf8(p) toLOWER_LC_uni(utf8_to_uv(p, 0))
366
9d116dd7 367#ifdef EBCDIC
20ce7b12 368EXT int ebcdic_control (int);
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JH
369# define toCTRL(c) ebcdic_control(c)
370#else
371 /* This conversion works both ways, strangely enough. */
372# define toCTRL(c) (toUPPER(c) ^ 64)
373#endif
bbce6d69 374
378cc40b 375/* Line numbers are unsigned, 16 bits. */
79072805 376typedef U16 line_t;
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377#ifdef lint
378#define NOLINE ((line_t)0)
379#else
380#define NOLINE ((line_t) 65535)
381#endif
382
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383
384/* This looks obsolete (IZ):
385
386 XXX LEAKTEST doesn't really work in perl5. There are direct calls to
27d4fb96
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387 safemalloc() in the source, so LEAKTEST won't pick them up.
388 Further, if you try LEAKTEST, you'll also end up calling
389 Safefree, which might call safexfree() on some things that weren't
390 malloced with safexmalloc. The correct "fix" to this, if anyone
391 is interested, is to ensure that all calls go through the New and
392 Renew macros.
393 --Andy Dougherty August 1996
394*/
55497cff 395
a687059c 396#ifndef lint
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397
398#define NEWSV(x,len) newSV(len)
399
a687059c 400#ifndef LEAKTEST
598a3d64 401
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PP
402#define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
403#define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
404#define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \
405 memzero((char*)(v), (n)*sizeof(t))
406#define Renew(v,n,t) \
407 (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
408#define Renewc(v,n,t,c) \
409 (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
410#define Safefree(d) safefree((Malloc_t)(d))
55497cff 411
a687059c 412#else /* LEAKTEST */
55497cff 413
ff68c719
PP
414#define New(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
415#define Newc(x,v,n,t,c) (v = (c*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
416#define Newz(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))), \
417 memzero((char*)(v), (n)*sizeof(t))
418#define Renew(v,n,t) \
419 (v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
420#define Renewc(v,n,t,c) \
421 (v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
8c52afec 422#define Safefree(d) safexfree((Malloc_t)(d))
ff68c719 423
fc36a67e 424#define MAXXCOUNT 1400
8c52afec
IZ
425#define MAXY_SIZE 80
426#define MAXYCOUNT 16 /* (MAXY_SIZE/4 + 1) */
427extern long xcount[MAXXCOUNT];
428extern long lastxcount[MAXXCOUNT];
429extern long xycount[MAXXCOUNT][MAXYCOUNT];
430extern long lastxycount[MAXXCOUNT][MAXYCOUNT];
55497cff 431
a687059c 432#endif /* LEAKTEST */
55497cff 433
ff68c719
PP
434#define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
435#define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
436#define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
55497cff 437
a687059c 438#else /* lint */
55497cff 439
ff68c719
PP
440#define New(x,v,n,s) (v = Null(s *))
441#define Newc(x,v,n,s,c) (v = Null(s *))
442#define Newz(x,v,n,s) (v = Null(s *))
443#define Renew(v,n,s) (v = Null(s *))
bee1dbe2 444#define Move(s,d,n,t)
a687059c
LW
445#define Copy(s,d,n,t)
446#define Zero(d,n,t)
ff68c719 447#define Safefree(d) (d) = (d)
55497cff 448
a687059c 449#endif /* lint */
bee1dbe2 450
2304df62 451#ifdef USE_STRUCT_COPY
ff68c719 452#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
bee1dbe2
LW
453#else
454#define StructCopy(s,d,t) Copy(s,d,1,t)
455#endif