Annotation of parser3/src/classes/math.C, revision 1.64
1.1 parser 1: /** @file
2: Parser: @b math parser class.
3:
1.59 moko 4: Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
1.20 paf 5: Author: Alexandr Petrosian <paf@design.ru>(http://paf.design.ru)
1.28 paf 6:
7: portions from gen_uuid.c,
8: Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o.
1.22 paf 9: */
1.1 parser 10:
1.34 paf 11: #include "pa_vmethod_frame.h"
1.1 parser 12: #include "pa_common.h"
13: #include "pa_vint.h"
1.2 parser 14: #include "pa_vmath.h"
1.1 parser 15: #include "pa_request.h"
1.19 paf 16: #include "pa_md5.h"
1.55 misha 17: #include "pa_random.h"
1.1 parser 18:
1.5 parser 19: #ifdef WIN32
1.28 paf 20: # define _WIN32_WINNT 0x400
1.5 parser 21: # include <windows.h>
1.28 paf 22: # include <wincrypt.h>
1.5 parser 23: #endif
24:
1.34 paf 25: #ifdef HAVE_CRYPT
26: # ifdef HAVE_CRYPT_H
27: # include <crypt.h>
28: # endif
29: #else
30: extern char *crypt(const char* , const char* );
1.20 paf 31: #endif
32:
1.64 ! moko 33: volatile const char * IDENT_MATH_C="$Id: math.C,v 1.63 2012-09-15 20:51:10 moko Exp $";
1.59 moko 34:
1.1 parser 35: // defines
36:
1.20 paf 37: #define MAX_SALT 8
1.1 parser 38:
39: // class
40:
1.34 paf 41: class MMath: public Methoded {
1.1 parser 42: public:
1.34 paf 43: MMath();
1.5 parser 44:
1.1 parser 45: public: // Methoded
1.15 paf 46: bool used_directly() { return false; }
1.1 parser 47: };
48:
1.34 paf 49: // global variables
50:
51: DECLARE_CLASS_VAR(math, 0 /*fictive*/, new MMath);
52:
1.1 parser 53: // methods
1.34 paf 54:
55: static void _random(Request& r, MethodParams& params) {
1.41 paf 56: double top=params.as_double(0, "range must be expression", r);
1.34 paf 57: if(top<=0 || top>MAX_UINT)
1.45 misha 58: throw Exception(PARSER_RUNTIME,
1.34 paf 59: 0,
60: "top(%g) must be [1..%u]", top, MAX_UINT);
1.1 parser 61:
1.34 paf 62: r.write_no_lang(*new VInt(_random(uint(top))));
1.1 parser 63: }
64:
65:
1.20 paf 66: typedef double(*math1_func_ptr)(double);
1.3 parser 67: static double frac(double param) { return param-trunc(param); }
68: static double degrees(double param) { return param /PI *180; }
69: static double radians(double param) { return param /180 *PI; }
1.1 parser 70:
1.34 paf 71: static void math1(Request& r, MethodParams& params, math1_func_ptr func) {
1.41 paf 72: double param=params.as_double(0, "parameter must be expression", r);
73: double result=func(param);
1.34 paf 74: r.write_no_lang(*new VDouble(result));
1.1 parser 75: }
76:
77: #define MATH1(name) \
1.34 paf 78: static void _##name(Request& r, MethodParams& params) {\
79: math1(r, params, &name);\
1.1 parser 80: }
81: #define MATH1P(name_parser, name_c) \
1.34 paf 82: static void _##name_parser(Request& r, MethodParams& params) {\
83: math1(r, params, &name_c);\
1.1 parser 84: }
85: MATH1(round); MATH1(floor); MATH1P(ceiling, ceil);
1.3 parser 86: MATH1(trunc); MATH1(frac);
1.1 parser 87: MATH1P(abs, fabs); MATH1(sign);
1.46 misha 88: MATH1(exp);
1.48 misha 89: MATH1(log); MATH1(log10);
1.1 parser 90: MATH1(sin); MATH1(asin);
91: MATH1(cos); MATH1(acos);
92: MATH1(tan); MATH1(atan);
1.3 parser 93: MATH1(degrees); MATH1(radians);
1.1 parser 94: MATH1(sqrt);
95:
96:
97: typedef double (*math2_func_ptr)(double, double);
1.34 paf 98: static void math2(Request& r, MethodParams& params, math2_func_ptr func) {
1.41 paf 99: double a=params.as_double(0, "parameter must be expression", r);
100: double b=params.as_double(1, "parameter must be expression", r);
101: double result=func(a, b);
1.34 paf 102: r.write_no_lang(*new VDouble(result));
1.1 parser 103: }
104:
105: #define MATH2(name) \
1.34 paf 106: static void _##name(Request& r, MethodParams& params) {\
107: math2(r, params, &name);\
1.1 parser 108: }
109: MATH2(pow);
110:
1.20 paf 111: inline bool is_salt_body_char(int c) {
112: return isalnum(c) || c == '.' || c=='/';
113: }
1.34 paf 114: static size_t calc_prefix_size(const char* salt) {
1.37 paf 115: if(strlen(salt)) {
1.39 paf 116: if(!is_salt_body_char((unsigned char)salt[0])) { // $... {...
1.34 paf 117: const char* cur=salt+1; // skip
1.39 paf 118: while(is_salt_body_char((unsigned char)*cur++)) // ...$ ...}
1.20 paf 119: ;
120: return cur-salt;
121: } else
122: return 0;
123: } else
124: return 0;
125: }
1.34 paf 126: static void _crypt(Request& r, MethodParams& params) {
127: const char* password=params.as_string(0, "password must be string").cstr();
128: const char* maybe_bodyless_salt=params.as_string(1, "salt must be string").cstr();
1.20 paf 129:
130: size_t prefix_size=calc_prefix_size(maybe_bodyless_salt);
1.34 paf 131: const char* normal_salt;
1.20 paf 132: char normalize_buf[MAX_STRING];
133: if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless?
134: strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT-1);
135: char *cur=normalize_buf+strlen(normalize_buf);
136: // sould add up MAX_SALT random chars
137: static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
138: "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
139: for(int i=0; i<MAX_SALT; i++)
140: *cur++=itoa64[_random(64)];
141: *cur=0;
142: normal_salt=normalize_buf;
143: } else
144: normal_salt=maybe_bodyless_salt;
1.19 paf 145:
1.54 misha 146: /* FreeBSD style MD5 string
147: */
148: if(strncmp(normal_salt, PA_MD5PW_ID, PA_MD5PW_IDLEN) == 0) {
1.19 paf 149: const size_t sample_size=120;
1.34 paf 150: char *sample_buf=new(PointerFreeGC) char[sample_size];
151: pa_MD5Encode((const unsigned char *)password,
152: (const unsigned char *)normal_salt, sample_buf, sample_size);
153: String sample(sample_buf);
154: r.write_pass_lang(sample);
1.54 misha 155: } else {
1.20 paf 156: #ifdef HAVE_CRYPT
1.34 paf 157: const char* static_sample_buf=crypt(password, normal_salt);
158: if(!static_sample_buf // nothing generated
159: || !static_sample_buf[0] // generated nothing
160: || strncmp(static_sample_buf, normal_salt, prefix_size)!=0) // salt prefix not preserved
1.45 misha 161: throw Exception(PARSER_RUNTIME,
1.34 paf 162: 0,
163: "crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt);
1.20 paf 164:
1.34 paf 165: r.write_pass_lang(String(pa_strdup(static_sample_buf)));
1.20 paf 166: #else
1.45 misha 167: throw Exception(PARSER_RUNTIME,
1.34 paf 168: 0,
1.19 paf 169: "salt must start with '" PA_MD5PW_ID "'");
1.20 paf 170: #endif
171: }
1.19 paf 172: }
173:
1.34 paf 174: static void _md5(Request& r, MethodParams& params) {
1.51 misha 175: const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.27 paf 176:
177: PA_MD5_CTX context;
178: unsigned char digest[16];
1.34 paf 179: pa_MD5Init(&context);
180: pa_MD5Update(&context, (const unsigned char*)string, strlen(string));
181: pa_MD5Final(digest, &context);
1.27 paf 182:
1.34 paf 183: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
1.26 paf 184: }
185:
1.49 misha 186:
187: //SHA-1:
188:
1.50 misha 189: struct SHA1Context {
1.54 misha 190: unsigned Message_Digest[5], Length_Low, Length_High;
191: unsigned int Message_Block[64];
192: int Message_Block_Index, Computed, Corrupted;
1.50 misha 193: };
1.49 misha 194:
195: #define SHA1CircularShift(bits,word) ((((word) << (bits)) & 0xFFFFFFFF)|((word) >> (32-(bits))))
196: void SHA1ProcessMessageBlock(SHA1Context *);
197: void SHA1PadMessage(SHA1Context *);
1.50 misha 198: void SHA1Reset(SHA1Context *context) {
1.54 misha 199: context->Length_Low = context->Length_High = context->Message_Block_Index = 0;
200: context->Message_Digest[0] = 0x67452301;
201: context->Message_Digest[1] = 0xEFCDAB89;
202: context->Message_Digest[2] = 0x98BADCFE;
203: context->Message_Digest[3] = 0x10325476;
204: context->Message_Digest[4] = 0xC3D2E1F0;
205: context->Computed = context->Corrupted = 0;
1.50 misha 206: }
1.49 misha 207:
1.50 misha 208: int SHA1Result(SHA1Context *context) {
1.54 misha 209: if (context->Corrupted)
210: return 0;
211: if (!context->Computed) {
212: SHA1PadMessage(context);
213: context->Computed = 1;
214: }
215: return 1;
216: }
217:
218: void SHA1Input(SHA1Context *context, const unsigned char *message_array, unsigned length) {
219: if (!length)
220: return;
221: if (context->Computed || context->Corrupted) {
222: context->Corrupted = 1;
223: return;
224: }
225:
226: while(length-- && !context->Corrupted) {
227: context->Message_Block[context->Message_Block_Index++] = (*message_array & 0xFF);
228: context->Length_Low += 8;
229: context->Length_Low &= 0xFFFFFFFF;
230: if (!context->Length_Low && !(context->Length_High=((1+context->Length_High)&0xFFFFFFFF)))
231: context->Corrupted = 1; // too long message
232: if (context->Message_Block_Index == 64)
233: SHA1ProcessMessageBlock(context);
234: message_array++;
1.49 misha 235: }
1.50 misha 236: }
1.49 misha 237:
1.50 misha 238: void SHA1ProcessMessageBlock(SHA1Context *context) {
1.54 misha 239: const unsigned K[] = {0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 };
240: int t;
241: unsigned temp, W[80], buf[5];
242: unsigned &A=buf[0], &B=buf[1], &C=buf[2], &D=buf[3], &E=buf[4];
1.50 misha 243:
1.54 misha 244: for(t = 0; t < 16; t++)
245: W[t] = (((unsigned) context->Message_Block[t * 4]) << 24) | (((unsigned) context->Message_Block[t * 4 + 1]) << 16) | (((unsigned) context->Message_Block[t * 4 + 2]) << 8) | ((unsigned) context->Message_Block[t * 4 + 3]);
1.50 misha 246:
1.54 misha 247: for(t = 16; t < 80; t++)
248: W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
1.49 misha 249:
1.54 misha 250: memcpy (buf, context->Message_Digest, sizeof(buf));
251: for(t = 0; t < 20; t++) {
252: temp = (SHA1CircularShift(5,A) + ((B & C) | ((~B) & D)) + E + W[t] + K[0]) & 0xFFFFFFFF;
253: E = D; D = C;
254: C = SHA1CircularShift(30,B);
255: B = A; A = temp;
1.49 misha 256: }
257:
1.54 misha 258: for(t = 20; t < 40; t++) {
259: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1]) & 0xFFFFFFFF;
260: E = D; D = C;
261: C = SHA1CircularShift(30,B);
262: B = A; A = temp;
1.49 misha 263: }
264:
1.54 misha 265: for(t = 40; t < 60; t++) {
266: temp = (SHA1CircularShift(5,A) + ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2]) & 0xFFFFFFFF;
267: E = D; D = C;
268: C = SHA1CircularShift(30,B);
269: B = A; A = temp;
1.49 misha 270: }
271:
1.54 misha 272: for(t = 60; t < 80; t++) {
273: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3]) & 0xFFFFFFFF;
274: E = D; D = C;
275: C = SHA1CircularShift(30,B);
276: B = A; A = temp;
1.49 misha 277: }
278:
1.54 misha 279: for (t = 0; t < 5; t++)
280: context->Message_Digest[t] = (context->Message_Digest[t] + buf[t]) & 0xFFFFFFFF;
1.50 misha 281:
1.54 misha 282: context->Message_Block_Index = 0;
1.50 misha 283: }
1.49 misha 284:
1.50 misha 285: void SHA1PadMessage(SHA1Context *context) {
1.54 misha 286: context->Message_Block[context->Message_Block_Index++] = 0x80;
1.50 misha 287: if (context->Message_Block_Index > 56) {
288: //was 55, one shift
1.54 misha 289: while(context->Message_Block_Index < 64)
290: context->Message_Block[context->Message_Block_Index++] = 0;
291: SHA1ProcessMessageBlock(context);
292: while(context->Message_Block_Index < 56)
293: context->Message_Block[context->Message_Block_Index++] = 0;
1.50 misha 294: } else
1.54 misha 295: while(context->Message_Block_Index < 56)
296: context->Message_Block[context->Message_Block_Index++] = 0;
297: context->Message_Block[56] = (context->Length_High >> 24) & 0xFF;
298: context->Message_Block[57] = (context->Length_High >> 16) & 0xFF;
299: context->Message_Block[58] = (context->Length_High >> 8) & 0xFF;
300: context->Message_Block[59] = (context->Length_High) & 0xFF;
301: context->Message_Block[60] = (context->Length_Low >> 24) & 0xFF;
302: context->Message_Block[61] = (context->Length_Low >> 16) & 0xFF;
303: context->Message_Block[62] = (context->Length_Low >> 8) & 0xFF;
304: context->Message_Block[63] = (context->Length_Low) & 0xFF;
305: SHA1ProcessMessageBlock(context);
1.50 misha 306: }
1.49 misha 307:
1.62 moko 308: #ifdef PA_BIG_ENDIAN
309: #define SWAP(n) (n)
310: #else
311: #define SWAP(n) (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
312: #endif
313:
1.64 ! moko 314: void SHA1ReadDigest(void *buf, SHA1Context *c)
1.62 moko 315: {
1.64 ! moko 316: if(!SHA1Result(c))
1.62 moko 317: throw Exception (PARSER_RUNTIME, 0, "Can not compute SHA1");
318:
1.64 ! moko 319: ((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]);
! 320: ((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]);
! 321: ((uint32_t *)buf)[2] = SWAP(c->Message_Digest[2]);
! 322: ((uint32_t *)buf)[3] = SWAP(c->Message_Digest[3]);
! 323: ((uint32_t *)buf)[4] = SWAP(c->Message_Digest[4]);
1.62 moko 324: }
325:
1.54 misha 326: static void _sha1(Request& r, MethodParams& params) {
327: const char *string = params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.49 misha 328:
1.54 misha 329: SHA1Context c;
1.64 ! moko 330: unsigned char digest[20];
1.54 misha 331: SHA1Reset (&c);
332: SHA1Input (&c, (const unsigned char*)string, strlen(string));
1.64 ! moko 333: SHA1ReadDigest(digest, &c);
1.54 misha 334:
1.62 moko 335: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
336: }
337:
1.64 ! moko 338: void memxor(char *dest, const char *src, size_t n){
! 339: for (;n>0;n--) *dest++ ^= *src++;
! 340: }
! 341:
1.62 moko 342: #define IPAD 0x36
343: #define OPAD 0x5c
344:
1.64 ! moko 345: #define HMAC(key,init,update,final,digestlen){ \
! 346: unsigned char tempdigest[digestlen], keydigest[digestlen]; \
! 347: size_t keylen=strlen(key); \
! 348: /* Reduce the key's size, so that it becomes <= 64 bytes. */ \
! 349: if (keylen > 64){ \
! 350: init(&c); \
! 351: update(&c,(const unsigned char*)hmac, keylen); \
! 352: final(keydigest, &c); \
! 353: key = (char *)keydigest; \
! 354: keylen = digestlen; \
! 355: } \
! 356: /* Compute TEMP from KEY and STRING. */ \
! 357: char block[64]; \
! 358: memset (block, IPAD, sizeof (block)); \
! 359: memxor (block, key, keylen); \
! 360: init(&c); \
! 361: update(&c, (const unsigned char*)block, 64); \
! 362: update(&c, (const unsigned char*)string, strlen(string)); \
! 363: final(tempdigest, &c); \
! 364: /* Compute result from KEY and TEMP. */ \
! 365: memset (block, OPAD, sizeof (block)); \
! 366: memxor (block, key, keylen); \
! 367: init(&c); \
! 368: update(&c, (const unsigned char*)block, 64); \
! 369: update(&c, (const unsigned char*)tempdigest, digestlen); \
1.62 moko 370: }
1.55 misha 371:
1.62 moko 372: static void _digest(Request& r, MethodParams& params) {
1.63 moko 373: const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING);
1.62 moko 374: const char *string = params.as_string(1, PARAMETER_MUST_BE_STRING).cstr();
375:
1.63 moko 376: enum Method { M_MD5, M_SHA1 } method;
1.62 moko 377:
1.63 moko 378: if (smethod == "md5") method = M_MD5;
379: else if (smethod == "sha1" ) method = M_SHA1;
380: else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1'");
1.62 moko 381:
382: const char *hmac=0;
1.63 moko 383: enum Format { F_HEX, F_BASE64 } format = F_HEX;
1.62 moko 384:
385: if(params.count() == 3)
386: if(HashStringValue* options=params.as_hash(2)) {
387: int valid_options=0;
388: if(Value* value=options->get("hmac")) {
389: hmac=value->as_string().cstr();
390: valid_options++;
391: }
1.63 moko 392: if(Value* value=options->get("format")) {
393: const String& sformat=value->as_string();
394: if (sformat == "hex") format = F_HEX;
395: else if (sformat == "base64" ) format = F_BASE64;
396: else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'");
1.62 moko 397: valid_options++;
398: }
399: if(valid_options!=options->count())
400: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
401: }
402:
403: String::C digest;
404:
1.63 moko 405: if(method == M_MD5){
1.64 ! moko 406: PA_MD5_CTX c;
! 407: if(hmac){
! 408: HMAC(hmac, pa_MD5Init, pa_MD5Update, pa_MD5Final, 16);
! 409: } else {
! 410: pa_MD5Init(&c);
! 411: pa_MD5Update(&c, (const unsigned char*)string, strlen(string));
! 412: }
1.62 moko 413: char *str=(char *)pa_malloc(16);
1.64 ! moko 414: pa_MD5Final((unsigned char *)str, &c);
1.62 moko 415: digest = String::C(str, 16);
416: }
417:
1.63 moko 418: if(method == M_SHA1){
1.62 moko 419: SHA1Context c;
420: if(hmac){
1.64 ! moko 421: HMAC(hmac, SHA1Reset, SHA1Input, SHA1ReadDigest, 20);
1.62 moko 422: } else {
1.64 ! moko 423: SHA1Reset(&c);
! 424: SHA1Input(&c, (const unsigned char*)string, strlen(string));
1.62 moko 425: }
426: char *str=(char *)pa_malloc(20);
1.64 ! moko 427: SHA1ReadDigest(str, &c);
1.62 moko 428: digest = String::C(str, 20);
429: }
1.49 misha 430:
1.63 moko 431: if(format == F_HEX){
1.62 moko 432: r.write_pass_lang(*new String(hex_string((unsigned char *)digest.str, digest.length, false)));
433: }
1.63 moko 434: if(format == F_BASE64){
1.62 moko 435: r.write_pass_lang(*new String(pa_base64_encode(digest.str, digest.length)));
436: }
1.54 misha 437: }
1.49 misha 438:
1.55 misha 439: static void _uuid(Request& r, MethodParams& /*params*/) {
440: uuid uuid=get_uuid();
1.49 misha 441:
1.55 misha 442: const size_t bufsize=36+1/*zero-teminator*/+1/*for faulty snprintfs*/;
443: char* cstr=new(PointerFreeGC) char[bufsize];
1.28 paf 444:
1.55 misha 445: snprintf(cstr, bufsize,
446: "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X",
447: uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,
448: uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
449: uuid.node[0], uuid.node[1], uuid.node[2],
450: uuid.node[3], uuid.node[4], uuid.node[5]);
1.28 paf 451:
1.55 misha 452: r.write_pass_lang(*new String(cstr));
1.28 paf 453: }
454:
1.34 paf 455: static void _uid64(Request& r, MethodParams& /*params*/) {
1.30 paf 456:
457: unsigned char id[64/8];
458: random(&id, sizeof(id));
459:
1.34 paf 460: r.write_pass_lang(*new String(hex_string(id, sizeof(id), true)));
1.30 paf 461: }
462:
1.43 misha 463: static void _crc32(Request& r, MethodParams& params) {
1.51 misha 464: const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.43 misha 465: r.write_no_lang(*new VInt(pa_crc32(string, strlen(string))));
466: }
467:
1.61 moko 468: static void toBase(unsigned int value, unsigned int base, char*& ptr){
1.57 misha 469: static const char* hex="0123456789ABCDEF";
470: int rest = value % base;
1.58 misha 471: if(value >= base)
1.57 misha 472: toBase( (value-rest)/base, base, ptr);
473: *ptr++=(char)hex[rest];
474: }
475:
476: static void _convert(Request& r, MethodParams& params) {
1.60 moko 477: const char *str=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
478:
1.57 misha 479: int base_from=params.as_int(1, "base from must be integer", r);
480: if(base_from < 2 || base_from > 16)
481: throw Exception(PARSER_RUNTIME, 0, "base from must be an integer from 2 to 16");
482:
1.60 moko 483: int base_to=params.as_int(2, "base to must be integer", r);
484: if(base_to < 2 || base_to > 16)
485: throw Exception(PARSER_RUNTIME, 0, "base to must be an integer from 2 to 16");
486:
1.61 moko 487: while(isspace(*str))
1.60 moko 488: str++;
489:
490: if(!*str)
491: return;
492:
493: bool negative=false;
494: if(str[0]=='-') {
495: negative=true;
496: str++;
497: } else if(str[0]=='+') {
498: str++;
499: }
500:
1.61 moko 501: unsigned int value=pa_atoui(str, base_from);
1.57 misha 502:
1.61 moko 503: char result_cstr[sizeof(unsigned int)*8+1/*minus for negative number*/+1/*terminator*/];
1.60 moko 504: char* ptr=result_cstr;
505: if(negative)
506: *ptr++='-';
1.57 misha 507:
508: toBase(value, base_to, ptr);
509: *ptr=0;
510: r.write_pass_lang(*new String(pa_strdup(result_cstr)));
511: }
512:
1.1 parser 513: // constructor
514:
1.34 paf 515: MMath::MMath(): Methoded("math") {
1.1 parser 516: // ^FUNC(expr)
1.28 paf 517: #define ADDX(name, X) \
518: add_native_method(#name, Method::CT_STATIC, _##name, X, X)
519: #define ADD0(name) ADDX(name, 0)
520: #define ADD1(name) ADDX(name, 1)
521: #define ADD2(name) ADDX(name, 2)
1.1 parser 522:
523: ADD1(round); ADD1(floor); ADD1(ceiling);
1.3 parser 524: ADD1(trunc); ADD1(frac);
1.1 parser 525: ADD1(abs); ADD1(sign);
1.46 misha 526: ADD1(exp);
1.48 misha 527: ADD1(log); ADD1(log10);
1.1 parser 528: ADD1(sin); ADD1(asin);
529: ADD1(cos); ADD1(acos);
530: ADD1(tan); ADD1(atan);
1.3 parser 531: ADD1(degrees); ADD1(radians);
1.1 parser 532: ADD1(sqrt);
1.3 parser 533: ADD1(random);
1.1 parser 534:
1.49 misha 535: // ^math:pow(x;y)
1.1 parser 536: ADD2(pow);
537:
1.49 misha 538: // ^math:crypt[password;salt]
1.19 paf 539: ADD2(crypt);
1.26 paf 540:
1.49 misha 541: // ^math:md5[string]
1.26 paf 542: ADD1(md5);
1.5 parser 543:
1.49 misha 544: // ^math:sha1[string]
545: ADD1(sha1);
546:
1.63 moko 547: // ^math:digest[method;string;options]
1.62 moko 548: add_native_method("digest", Method::CT_STATIC, _digest, 2, 3);
549:
1.49 misha 550: // ^math:crc32[string]
1.43 misha 551: ADD1(crc32);
552:
1.49 misha 553: // ^math:uuid[]
1.29 paf 554: ADD0(uuid);
555:
1.49 misha 556: // ^math:uid64[]
1.30 paf 557: ADD0(uid64);
1.57 misha 558:
559: // ^math:convert[number](base-from;base-to)
560: add_native_method("convert", Method::CT_STATIC, _convert, 3, 3);
1.1 parser 561: }
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