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1 | /* handy.h |
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2 | * |
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3 | * Copyright (c) 1991-1994, Larry Wall |
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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. |
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7 | * |
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8 | */ |
9 | |
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10 | #if !defined(__STDC__) |
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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 | |
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21 | #define Null(type) ((type)NULL) |
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22 | #define Nullch Null(char*) |
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23 | #define Nullfp Null(PerlIO*) |
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24 | #define Nullsv Null(SV*) |
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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 | */ |
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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 | */ |
57 | #ifdef NeXT |
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 */ |
65 | #endif /* NeXT */ |
66 | |
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67 | #ifndef HAS_BOOL |
68 | # ifdef UTS |
69 | # define bool int |
70 | # else |
71 | # define bool char |
72 | # endif |
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73 | #endif |
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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 |
84 | */ |
85 | |
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86 | typedef char I8; |
87 | typedef unsigned char U8; |
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88 | /* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type. |
89 | Please search CHAR_MAX in perl.h for further details. */ |
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90 | #define U8_MAX PERL_UCHAR_MAX |
91 | #define U8_MIN PERL_UCHAR_MIN |
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92 | |
93 | typedef short I16; |
94 | typedef unsigned short U16; |
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95 | #define I16_MAX PERL_SHORT_MAX |
96 | #define I16_MIN PERL_SHORT_MIN |
97 | #define U16_MAX PERL_USHORT_MAX |
98 | #define U16_MIN PERL_USHORT_MIN |
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99 | |
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100 | #if BYTEORDER > 0x4321 |
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101 | typedef int I32; |
102 | typedef unsigned int U32; |
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103 | # define I32_MAX PERL_INT_MAX |
104 | # define I32_MIN PERL_INT_MIN |
105 | # define U32_MAX PERL_UINT_MAX |
106 | # define U32_MIN PERL_UINT_MIN |
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107 | #else |
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108 | typedef long I32; |
109 | typedef unsigned long U32; |
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110 | # define I32_MAX PERL_LONG_MAX |
111 | # define I32_MIN PERL_LONG_MIN |
112 | # define U32_MAX PERL_ULONG_MAX |
113 | # define U32_MIN PERL_ULONG_MIN |
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114 | #endif |
115 | |
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116 | #define Ctl(ch) ((ch) & 037) |
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117 | |
118 | #define strNE(s1,s2) (strcmp(s1,s2)) |
119 | #define strEQ(s1,s2) (!strcmp(s1,s2)) |
120 | #define strLT(s1,s2) (strcmp(s1,s2) < 0) |
121 | #define strLE(s1,s2) (strcmp(s1,s2) <= 0) |
122 | #define strGT(s1,s2) (strcmp(s1,s2) > 0) |
123 | #define strGE(s1,s2) (strcmp(s1,s2) >= 0) |
124 | #define strnNE(s1,s2,l) (strncmp(s1,s2,l)) |
125 | #define strnEQ(s1,s2,l) (!strncmp(s1,s2,l)) |
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126 | |
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127 | #ifdef HAS_MEMCMP |
128 | # define memNE(s1,s2,l) (memcmp(s1,s2,l)) |
129 | # define memEQ(s1,s2,l) (!memcmp(s1,s2,l)) |
130 | #else |
131 | # define memNE(s1,s2,l) (bcmp(s1,s2,l)) |
132 | # define memEQ(s1,s2,l) (!bcmp(s1,s2,l)) |
133 | #endif |
134 | |
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135 | /* |
136 | * Character classes. |
137 | * |
138 | * Unfortunately, the introduction of locales means that we |
139 | * can't trust isupper(), etc. to tell the truth. And when |
140 | * it comes to /\w+/ with tainting enabled, we *must* be able |
141 | * to trust our character classes. |
142 | * |
143 | * Therefore, the default tests in the text of Perl will be |
144 | * independent of locale. Any code that wants to depend on |
145 | * the current locale will use the tests that begin with "lc". |
146 | */ |
147 | |
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148 | #ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */ |
149 | # ifndef CTYPE256 |
150 | # define CTYPE256 |
151 | # endif |
152 | #endif |
153 | |
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154 | #define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_') |
155 | #define isIDFIRST(c) (isALPHA(c) || (c) == '_') |
156 | #define isALPHA(c) (isUPPER(c) || isLOWER(c)) |
157 | #define isSPACE(c) \ |
158 | ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f') |
159 | #define isDIGIT(c) ((c) >= '0' && (c) <= '9') |
160 | #define isUPPER(c) ((c) >= 'A' && (c) <= 'Z') |
161 | #define isLOWER(c) ((c) >= 'a' && (c) <= 'z') |
162 | #define isPRINT(c) (((c) > 32 && (c) < 127) || isSPACE(c)) |
163 | #define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c)) |
164 | #define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c)) |
165 | |
166 | #ifdef USE_NEXT_CTYPE |
167 | |
168 | # define isALNUM_LC(c) \ |
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169 | (NXIsAlpha((unsigned int)(c)) || NXIsDigit((unsigned int)(c)) || \ |
170 | (char)(c) == '_') |
171 | # define isIDFIRST_LC(c) \ |
172 | (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_') |
173 | # define isALPHA_LC(c) NXIsAlpha((unsigned int)(c)) |
174 | # define isSPACE_LC(c) NXIsSpace((unsigned int)(c)) |
175 | # define isDIGIT_LC(c) NXIsDigit((unsigned int)(c)) |
176 | # define isUPPER_LC(c) NXIsUpper((unsigned int)(c)) |
177 | # define isLOWER_LC(c) NXIsLower((unsigned int)(c)) |
178 | # define isPRINT_LC(c) NXIsPrint((unsigned int)(c)) |
179 | # define toUPPER_LC(c) NXToUpper((unsigned int)(c)) |
180 | # define toLOWER_LC(c) NXToLower((unsigned int)(c)) |
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181 | |
182 | #else /* !USE_NEXT_CTYPE */ |
183 | # if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII)) |
184 | |
185 | # define isALNUM_LC(c) \ |
186 | (isalpha((unsigned char)(c)) || \ |
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187 | isdigit((unsigned char)(c)) || (char)(c) == '_') |
188 | # define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_') |
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189 | # define isALPHA_LC(c) isalpha((unsigned char)(c)) |
190 | # define isSPACE_LC(c) isspace((unsigned char)(c)) |
191 | # define isDIGIT_LC(c) isdigit((unsigned char)(c)) |
192 | # define isUPPER_LC(c) isupper((unsigned char)(c)) |
193 | # define isLOWER_LC(c) islower((unsigned char)(c)) |
194 | # define isPRINT_LC(c) isprint((unsigned char)(c)) |
195 | # define toUPPER_LC(c) toupper((unsigned char)(c)) |
196 | # define toLOWER_LC(c) tolower((unsigned char)(c)) |
197 | |
198 | # else |
199 | |
200 | # define isALNUM_LC(c) \ |
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201 | (isascii(c) && (isalpha(c) || isdigit(c) || (c) == '_')) |
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202 | # define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_')) |
203 | # define isALPHA_LC(c) (isascii(c) && isalpha(c)) |
204 | # define isSPACE_LC(c) (isascii(c) && isspace(c)) |
205 | # define isDIGIT_LC(c) (isascii(c) && isdigit(c)) |
206 | # define isUPPER_LC(c) (isascii(c) && isupper(c)) |
207 | # define isLOWER_LC(c) (isascii(c) && islower(c)) |
208 | # define isPRINT_LC(c) (isascii(c) && isprint(c)) |
209 | # define toUPPER_LC(c) toupper(c) |
210 | # define toLOWER_LC(c) tolower(c) |
211 | |
212 | # endif |
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213 | #endif /* USE_NEXT_CTYPE */ |
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214 | |
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215 | /* This conversion works both ways, strangely enough. */ |
216 | #define toCTRL(c) (toUPPER(c) ^ 64) |
217 | |
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218 | /* Line numbers are unsigned, 16 bits. */ |
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219 | typedef U16 line_t; |
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220 | #ifdef lint |
221 | #define NOLINE ((line_t)0) |
222 | #else |
223 | #define NOLINE ((line_t) 65535) |
224 | #endif |
225 | |
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226 | /* XXX LEAKTEST doesn't really work in perl5. There are direct calls to |
227 | safemalloc() in the source, so LEAKTEST won't pick them up. |
228 | Further, if you try LEAKTEST, you'll also end up calling |
229 | Safefree, which might call safexfree() on some things that weren't |
230 | malloced with safexmalloc. The correct "fix" to this, if anyone |
231 | is interested, is to ensure that all calls go through the New and |
232 | Renew macros. |
233 | --Andy Dougherty August 1996 |
234 | */ |
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235 | |
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236 | #ifndef lint |
237 | #ifndef LEAKTEST |
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238 | |
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239 | #define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))) |
240 | #define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t)))) |
241 | #define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \ |
242 | memzero((char*)(v), (n)*sizeof(t)) |
243 | #define Renew(v,n,t) \ |
244 | (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t)))) |
245 | #define Renewc(v,n,t,c) \ |
246 | (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t)))) |
247 | #define Safefree(d) safefree((Malloc_t)(d)) |
248 | #define NEWSV(x,len) newSV(len) |
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249 | |
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250 | #else /* LEAKTEST */ |
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251 | |
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252 | #define New(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))) |
253 | #define Newc(x,v,n,t,c) (v = (c*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))) |
254 | #define Newz(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))), \ |
255 | memzero((char*)(v), (n)*sizeof(t)) |
256 | #define Renew(v,n,t) \ |
257 | (v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t)))) |
258 | #define Renewc(v,n,t,c) \ |
259 | (v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t)))) |
260 | #define Safefree(d) safexfree((Malloc_t)d) |
261 | #define NEWSV(x,len) newSV(x,len) |
262 | |
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263 | #define MAXXCOUNT 1200 |
264 | long xcount[MAXXCOUNT]; |
265 | long lastxcount[MAXXCOUNT]; |
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266 | |
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267 | #endif /* LEAKTEST */ |
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268 | |
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269 | #define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t)) |
270 | #define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t)) |
271 | #define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t)) |
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272 | |
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273 | #else /* lint */ |
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274 | |
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275 | #define New(x,v,n,s) (v = Null(s *)) |
276 | #define Newc(x,v,n,s,c) (v = Null(s *)) |
277 | #define Newz(x,v,n,s) (v = Null(s *)) |
278 | #define Renew(v,n,s) (v = Null(s *)) |
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279 | #define Move(s,d,n,t) |
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280 | #define Copy(s,d,n,t) |
281 | #define Zero(d,n,t) |
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282 | #define Safefree(d) (d) = (d) |
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283 | |
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284 | #endif /* lint */ |
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285 | |
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286 | #ifdef USE_STRUCT_COPY |
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287 | #define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s))) |
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288 | #else |
289 | #define StructCopy(s,d,t) Copy(s,d,1,t) |
290 | #endif |