parser3/src/classes/math.C - diff

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Diff for /parser3/src/classes/math.C between versions 1.80 and 1.113

version 1.80, 2015/10/26 01:21:54	version 1.113, 2026/09/15 20:48:14
Line 1	Line 1
/** @file	/** @file
Parser: @b math parser class.	Parser: @b math parser class.

Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)	Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)
Author: Alexandr Petrosian <paf@design.ru>(http://paf.design.ru)	Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>

portions from gen_uuid.c,	portions from gen_uuid.c,
Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o.	Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o.
Line 10	Line 10

#include "pa_vmethod_frame.h"	#include "pa_vmethod_frame.h"
#include "pa_common.h"	#include "pa_common.h"
	#include "pa_int.h"
	#include "pa_base64.h"
#include "pa_vint.h"	#include "pa_vint.h"
#include "pa_vmath.h"	#include "pa_vmath.h"
#include "pa_vfile.h"	#include "pa_vfile.h"
Line 31 volatile const char * IDENT_MATH_C="$Id$	Line 33 volatile const char * IDENT_MATH_C="$Id$
// class	// class

class MMath: public Methoded {	class MMath: public Methoded {
public:
MMath();

public: // Methoded	public: // Methoded
bool used_directly() { return false; }	bool used_directly() { return false; }

	public:
	MMath();
};	};

// global variables	// global variables

DECLARE_CLASS_VAR(math, 0 /fictive/, new MMath);	DECLARE_CLASS_VAR(math, new MMath);

// methods	// methods

static void _random(Request& r, MethodParams& params) {	static void _random(Request& r, MethodParams& params) {
double top=params.as_double(0, "range must be expression", r);	double top=params.as_double(0, "range must be expression", r);
if(top<=0 \|\| top>MAX_UINT)	if(top<1 \|\| top>INT_MAX)
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, "top(%.15g) must be [1..%u]", top, INT_MAX);
0,	r.write(*new VInt(_random(uint(top))));
"top(%g) must be [1..%u]", top, MAX_UINT);

r.write_no_lang(*new VInt(_random(uint(top))));
}	}


Line 63 static double radians(double param) { re	Line 62 static double radians(double param) { re
static void math1(Request& r, MethodParams& params, math1_func_ptr func) {	static void math1(Request& r, MethodParams& params, math1_func_ptr func) {
double param=params.as_double(0, "parameter must be expression", r);	double param=params.as_double(0, "parameter must be expression", r);
double result=func(param);	double result=func(param);
r.write_no_lang(*new VDouble(result));	r.write(*new VDouble(result));
}	}

#define MATH1(name) \	#define MATH1(name) \
Line 102 static void math2(Request& r, MethodPara	Line 101 static void math2(Request& r, MethodPara
double a=params.as_double(0, "parameter must be expression", r);	double a=params.as_double(0, "parameter must be expression", r);
double b=params.as_double(1, "parameter must be expression", r);	double b=params.as_double(1, "parameter must be expression", r);
double result=func(a, b);	double result=func(a, b);
r.write_no_lang(*new VDouble(result));	r.write(*new VDouble(result));
}	}

#define MATH2(name) \	#define MATH2(name) \
Line 111 static void math2(Request& r, MethodPara	Line 110 static void math2(Request& r, MethodPara
}	}

MATH2(pow)	MATH2(pow)
	MATH2(atan2)

	static void _eq(Request& r, MethodParams& params) {
	double a=params.as_double(0, "parameter must be expression", r);
	double b=params.as_double(1, "parameter must be expression", r);
	uint64_t max_ulp=ULP_EQ_DEFAULT_DIST;
	if(params.count() == 3)
	max_ulp=params.as_int(2, "max distance must be integer", r);
	r.write(VBool::get(ulp_eq_double(a, b, max_ulp)));
	}

inline bool is_salt_body_char(unsigned char c) {	inline bool is_salt_body_char(unsigned char c) {
return pa_isalnum(c) \|\| c == '.' \|\| c=='/';	return pa_isalnum(c) \|\| c == '.' \|\| c=='/';
Line 136 static void _crypt(Request& r, MethodPar	Line 145 static void _crypt(Request& r, MethodPar
const char* normal_salt;	const char* normal_salt;
char normalize_buf[MAX_STRING];	char normalize_buf[MAX_STRING];
if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless?	if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless?
strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT-1);	pa_strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT);
char *cur=normalize_buf+strlen(normalize_buf);	char *cur=normalize_buf+strlen(normalize_buf);
// sould add up MAX_SALT random chars	// sould add up MAX_SALT random chars
static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */	static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
Line 156 static void _crypt(Request& r, MethodPar	Line 165 static void _crypt(Request& r, MethodPar
pa_MD5Encode((const unsigned char *)password,	pa_MD5Encode((const unsigned char *)password,
(const unsigned char *)normal_salt, sample_buf, sample_size);	(const unsigned char *)normal_salt, sample_buf, sample_size);
String sample(sample_buf);	String sample(sample_buf);
r.write_pass_lang(sample);	r.write(sample);
} else {	} else {
#ifdef HAVE_CRYPT	#ifdef HAVE_CRYPT
const char* static_sample_buf=crypt(password, normal_salt);	const char* static_sample_buf=crypt(password, normal_salt);
Line 167 static void _crypt(Request& r, MethodPar	Line 176 static void _crypt(Request& r, MethodPar
0,	0,
"crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt);	"crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt);

r.write_pass_lang(String(pa_strdup(static_sample_buf)));	r.write(String(pa_strdup(static_sample_buf)));
#else	#else
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME,
0,	0,
Line 185 static void _md5(Request& r, MethodParam	Line 194 static void _md5(Request& r, MethodParam
pa_MD5Update(&context, (const unsigned char*)string, strlen(string));	pa_MD5Update(&context, (const unsigned char*)string, strlen(string));
pa_MD5Final(digest, &context);	pa_MD5Final(digest, &context);

r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));	r.write(*new String(hex_string(digest, sizeof(digest), false)));
}	}


Line 319 void SHA1PadMessage(SHA1Context *context	Line 328 void SHA1PadMessage(SHA1Context *context
void SHA1ReadDigest(void buf, SHA1Context c)	void SHA1ReadDigest(void buf, SHA1Context c)
{	{
if(!SHA1Result(c))	if(!SHA1Result(c))
throw Exception (PARSER_RUNTIME, 0, "Can not compute SHA1");	throw Exception (PARSER_RUNTIME, 0, "Cannot compute SHA1");

((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]);	((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]);
((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]);	((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]);
Line 337 static void _sha1(Request& r, MethodPara	Line 346 static void _sha1(Request& r, MethodPara
SHA1Input (&c, (const unsigned char*)string, strlen(string));	SHA1Input (&c, (const unsigned char*)string, strlen(string));
SHA1ReadDigest(digest, &c);	SHA1ReadDigest(digest, &c);

r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));	r.write(*new String(hex_string(digest, sizeof(digest), false)));
	}

	String::C getData(Value& vdata, Request& r){
	if(const String* sdata=vdata.get_string()){
	String::Body body=sdata->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes
	return String::C(body.cstr(), body.length());
	} else {
	VFile *file=vdata.as_vfile();
	return String::C(file->value_ptr(),file->value_size());
	}
}	}

void memxor(char dest, const char src, size_t n){	void memxor(char dest, const char src, size_t n){
Line 347 void memxor(char dest, const char src,	Line 366 void memxor(char dest, const char src,
#define IPAD 0x36	#define IPAD 0x36
#define OPAD 0x5c	#define OPAD 0x5c

#define HMAC(key,init,update,final,blocklen,digestlen){ \	#define HMAC(key,keylen,init,update,final,blocklen,digestlen){ \
unsigned char tempdigest[digestlen], keydigest[digestlen]; \	unsigned char tempdigest[digestlen], keydigest[digestlen]; \
size_t keylen=strlen(key); \
/* Reduce the key's size, so that it becomes <= blocklen bytes. */ \	/* Reduce the key's size, so that it becomes <= blocklen bytes. */ \
if (keylen > blocklen){ \	if (keylen > blocklen){ \
init(&c); \	init(&c); \
update(&c,(const unsigned char*)hmac, keylen); \	update(&c,(const unsigned char*)key, keylen); \
final(keydigest, &c); \	final(keydigest, &c); \
key = (char *)keydigest; \	key = (char *)keydigest; \
keylen = digestlen; \	keylen = digestlen; \
Line 377 void memxor(char dest, const char src,	Line 395 void memxor(char dest, const char src,
static void _digest(Request& r, MethodParams& params) {	static void _digest(Request& r, MethodParams& params) {
const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING);	const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING);

Value& vdata=params.as_no_junction(1, "parameter must be string or file");	String::C data=getData(params.as_no_junction(1, "parameter must be string or file"), r);

String::C data;
if(const String* sdata=vdata.get_string()){
String::Body body=sdata->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes
data=String::C(body.cstr(), body.length());
} else {
VFile *file=vdata.as_vfile(String::L_AS_IS);
data=String::C(file->value_ptr(),file->value_size());
}

enum Method { M_MD5, M_SHA1, M_SHA256, M_SHA512 } method;	enum Method { M_MD5, M_SHA1, M_SHA256, M_SHA512 } method;

Line 394 static void _digest(Request& r, MethodPa	Line 403 static void _digest(Request& r, MethodPa
else if (smethod == "sha1" ) method = M_SHA1;	else if (smethod == "sha1" ) method = M_SHA1;
else if (smethod == "sha256" ) method = M_SHA256;	else if (smethod == "sha256" ) method = M_SHA256;
else if (smethod == "sha512" ) method = M_SHA512;	else if (smethod == "sha512" ) method = M_SHA512;
else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1'");	else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1' or 'sha256' or 'sha512'");

const char *hmac=0;	const char *hmac=0;
enum Format { F_HEX, F_BASE64 } format = F_HEX;	size_t hmac_len=0;

	enum Format { F_HEX, F_BASE64, F_FILE } format = F_HEX;

if(params.count() == 3)	if(params.count() == 3)
if(HashStringValue* options=params.as_hash(2)) {	if(HashStringValue* options=params.as_hash(2)) {
int valid_options=0;	int valid_options=0;
if(Value* value=options->get("hmac")) {	if(Value* value=options->get("hmac")) {
hmac=value->as_string().cstr();	if(VFile* vfile=dynamic_cast<VFile *>(value)){
	hmac=(const char* )vfile->value_ptr();
	hmac_len=vfile->value_size();
	} else {
	hmac=value->as_string().cstr();
	hmac_len=strlen(hmac);
	}
valid_options++;	valid_options++;
}	}
if(Value* value=options->get("format")) {	if(Value* value=options->get("format")) {
const String& sformat=value->as_string();	const String& sformat=value->as_string();
if (sformat == "hex") format = F_HEX;	if (sformat == "hex") format = F_HEX;
else if (sformat == "base64" ) format = F_BASE64;	else if (sformat == "base64" ) format = F_BASE64;
	else if (sformat == "file" ) format = F_FILE;
else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'");	else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'");
valid_options++;	valid_options++;
}	}
Line 422 static void _digest(Request& r, MethodPa	Line 440 static void _digest(Request& r, MethodPa
if(method == M_MD5){	if(method == M_MD5){
PA_MD5_CTX c;	PA_MD5_CTX c;
if(hmac){	if(hmac){
HMAC(hmac, pa_MD5Init, pa_MD5Update, pa_MD5Final, 64, 16);	HMAC(hmac, hmac_len, pa_MD5Init, pa_MD5Update, pa_MD5Final, 64, 16);
} else {	} else {
pa_MD5Init(&c);	pa_MD5Init(&c);
pa_MD5Update(&c, (const unsigned char*)data.str, data.length);	pa_MD5Update(&c, (const unsigned char*)data.str, data.length);
Line 435 static void _digest(Request& r, MethodPa	Line 453 static void _digest(Request& r, MethodPa
if(method == M_SHA1){	if(method == M_SHA1){
SHA1Context c;	SHA1Context c;
if(hmac){	if(hmac){
HMAC(hmac, SHA1Reset, SHA1Input, SHA1ReadDigest, 64, 20);	HMAC(hmac, hmac_len, SHA1Reset, SHA1Input, SHA1ReadDigest, 64, 20);
} else {	} else {
SHA1Reset(&c);	SHA1Reset(&c);
SHA1Input(&c, (const unsigned char*)data.str, data.length);	SHA1Input(&c, (const unsigned char*)data.str, data.length);
Line 448 static void _digest(Request& r, MethodPa	Line 466 static void _digest(Request& r, MethodPa
if(method == M_SHA256){	if(method == M_SHA256){
SHA256_CTX c;	SHA256_CTX c;
if(hmac){	if(hmac){
HMAC(hmac, pa_SHA256_Init, pa_SHA256_Update, pa_SHA256_Final, 64, SHA256_DIGEST_LENGTH);	HMAC(hmac, hmac_len, pa_SHA256_Init, pa_SHA256_Update, pa_SHA256_Final, 64, SHA256_DIGEST_LENGTH);
} else {	} else {
pa_SHA256_Init(&c);	pa_SHA256_Init(&c);
pa_SHA256_Update(&c, (const unsigned char*)data.str, data.length);	pa_SHA256_Update(&c, (const unsigned char*)data.str, data.length);
Line 461 static void _digest(Request& r, MethodPa	Line 479 static void _digest(Request& r, MethodPa
if(method == M_SHA512){	if(method == M_SHA512){
SHA512_CTX c;	SHA512_CTX c;
if(hmac){	if(hmac){
HMAC(hmac, pa_SHA512_Init, pa_SHA512_Update, pa_SHA512_Final, 128, SHA512_DIGEST_LENGTH);	HMAC(hmac, hmac_len, pa_SHA512_Init, pa_SHA512_Update, pa_SHA512_Final, 128, SHA512_DIGEST_LENGTH);
} else {	} else {
pa_SHA512_Init(&c);	pa_SHA512_Init(&c);
pa_SHA512_Update(&c, (const unsigned char*)data.str, data.length);	pa_SHA512_Update(&c, (const unsigned char*)data.str, data.length);
Line 472 static void _digest(Request& r, MethodPa	Line 490 static void _digest(Request& r, MethodPa
}	}

if(format == F_HEX){	if(format == F_HEX){
r.write_pass_lang(new String(hex_string((unsigned char )digest.str, digest.length, false)));	r.write(new String(hex_string((unsigned char )digest.str, digest.length, false)));
}	}
if(format == F_BASE64){	if(format == F_BASE64){
r.write_pass_lang(*new String(pa_base64_encode(digest.str, digest.length)));	r.write(new String(pa_base64_encode(digest.str, digest.length, Base64Options(false /no wrap*/))));
	}
	if(format == F_FILE){
	VFile& result=*new VFile;
	result.set_binary(true, digest.str, digest.length);
	r.write(result);
}	}
}	}

static void _uuid(Request& r, MethodParams& /params/) {	static void _uuid(Request& r, MethodParams& params) {
uuid uuid=get_uuid();	bool lower=false;
	bool solid=false;

const size_t bufsize=36+1/zero-teminator/+1/for faulty snprintfs/;	if (params.count() == 1)
char* cstr=new(PointerFreeGC) char[bufsize];	if (HashStringValue* options = params.as_hash(0)) {
	int valid_options = 0;
	if (Value* vlower = options->get("lower")) {
	lower = r.process(*vlower).as_bool();
	valid_options++;
	}
	if (Value* vsolid = options->get("solid")) {
	solid = r.process(*vsolid).as_bool();
	valid_options++;
	}
	if (valid_options != options->count())
	throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
	}

	r.write(*new String(get_uuid_cstr(lower, solid)));
	}

snprintf(cstr, bufsize,	static void _uuid7(Request& r, MethodParams& params) {
"%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X",	bool lower=false;
uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,	bool solid=false;
uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
uuid.node[0], uuid.node[1], uuid.node[2],	if (params.count() == 1)
uuid.node[3], uuid.node[4], uuid.node[5]);	if (HashStringValue* options = params.as_hash(0)) {
	int valid_options = 0;
	if (Value* vlower = options->get("lower")) {
	lower = r.process(*vlower).as_bool();
	valid_options++;
	}
	if (Value* vsolid = options->get("solid")) {
	solid = r.process(*vsolid).as_bool();
	valid_options++;
	}
	if (valid_options != options->count())
	throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
	}

r.write_pass_lang(*new String(cstr));	r.write(*new String(get_uuid7_cstr(lower, solid)));
}	}

static void _uid64(Request& r, MethodParams& /params/) {	static void _uid64(Request& r, MethodParams& params) {
	bool lower = false;

	if (params.count() == 1)
	if (HashStringValue* options = params.as_hash(0)) {
	int valid_options = 0;
	if (Value* vlower = options->get("lower")) {
	lower = r.process(*vlower).as_bool();
	valid_options++;
	}
	if (valid_options != options->count())
	throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
	}

unsigned char id[64/8];	unsigned char id[64/8];
random(&id, sizeof(id));	random(&id, sizeof(id));

r.write_pass_lang(*new String(hex_string(id, sizeof(id), true)));	r.write(*new String(hex_string(id, sizeof(id), !lower)));
}	}

static void _crc32(Request& r, MethodParams& params) {	static void _crc32(Request& r, MethodParams& params) {
const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();	const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
r.write_no_lang(*new VInt(pa_crc32(string, strlen(string))));	r.write(*new VDouble((uint)pa_crc32(string, strlen(string))));
}	}

static void toBase(unsigned long long int value, unsigned int base, char*& ptr){	static const char* abc_hex = "0123456789ABCDEF";
static const char* hex="0123456789ABCDEF";
unsigned int rest = (unsigned int)(value % base);	static unsigned char hex_lookup[256] = {
if(value >= base)	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
toBase( (value-rest)/base, base, ptr);	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
*ptr++=(char)hex[rest];	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
	0,10,11,12,13,14,15, 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,
	0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0
	};

	static unsigned char abc_lookup[256] = {};
	static unsigned char abc_256_lookup[256] = {};

	inline unsigned char *init_abc_256() {
	if(!abc_256_lookup[255])
	for(int i=0; i<256; i++) abc_256_lookup[i] = (unsigned char)i;
	return abc_256_lookup;
}	}

static void _convert(Request& r, MethodParams& params) {	static void _convert(Request& r, MethodParams& params) {
const char *str=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();	String::C data=getData(params.as_no_junction(0, "parameter must be string or file"), r);

	bool abc_mode = true;
	unsigned char *lookup;
	const char *abc_from;
	int base_from;

	if(params[1].is_string()) {
	abc_from = params[1].get_string()->cstr();
	base_from = strlen(abc_from);
	if(base_from < 2)
	throw Exception(PARSER_RUNTIME, 0, "alphabet 'from' must contain at least 2 characters");
	lookup = abc_lookup;
	memset(abc_lookup,0,sizeof(abc_lookup));
	for(int i=0; i<base_from; i++) abc_lookup[(unsigned char)abc_from[i]] = (unsigned char)i;
	} else {
	base_from=params.as_int(1, "base 'from' must be integer or string", r);
	if(base_from < 2 \|\| base_from > 16 && base_from != 256)
	throw Exception(PARSER_RUNTIME, 0, "base 'from' must be an integer from 2 to 16 or 256");
	if (base_from == 256) {
	abc_from = "";
	lookup = init_abc_256();
	} else {
	abc_mode = false;
	abc_from = abc_hex;
	lookup = hex_lookup;
	}
	}

int base_from=params.as_int(1, "base from must be integer", r);	const char *abc_to;
if(base_from < 2 \|\| base_from > 16)	int base_to;
throw Exception(PARSER_RUNTIME, 0, "base from must be an integer from 2 to 16");

int base_to=params.as_int(2, "base to must be integer", r);	if(params[2].is_string()) {
if(base_to < 2 \|\| base_to > 16)	abc_to=params[2].get_string()->cstr();
throw Exception(PARSER_RUNTIME, 0, "base to must be an integer from 2 to 16");	base_to=strlen(abc_to);
	if(base_to < 2)
	throw Exception(PARSER_RUNTIME, 0, "alphabet 'to' must contain at least 2 characters");
	} else {
	base_to=params.as_int(2, "base 'to' must be integer or string", r);
	if(base_to < 2 \|\| base_to > 16 && base_to != 256)
	throw Exception(PARSER_RUNTIME, 0, "base 'to' must be an integer from 2 to 16 or 256");
	if (base_to == 256) {
	abc_to = (char *)init_abc_256();
	} else {
	abc_to = abc_hex;
	}
	}

while(isspace(*str))	VFile* result_file = 0;
str++;

if(!*str)	if(params.count() == 4)
return;	if(HashStringValue* options=params.as_hash(3)) {
	int valid_options=0;
	if(Value* value=options->get("format")) {
	const String& sformat=value->as_string();
	if (sformat == "file" ) result_file = new VFile;
	else if (sformat != "string") throw Exception(PARSER_RUNTIME, &sformat, "must be 'string' or 'file'");
	valid_options++;
	}
	if(valid_options!=options->count())
	throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
	}

bool negative=false;	bool negative=false;
if(str[0]=='-') {
negative=true;	// converting digits to their numeric values
str++;
} else if(str[0]=='+') {	unsigned char src=(unsigned char )pa_strdup(data.str, data.length);
str++;	const unsigned char *src_end = src + data.length;

	unsigned char *c;

	if(abc_mode){

	for(c=src;c<src_end;c++) {
	unsigned char digit=lookup[*c];
	if(!digit && *c != abc_from[0])
	throw Exception("number.format", 0, "'%c' is an invalid digit", *c);
	*c=digit;
	}

	} else {
	// numbers mode, allow whitespace and sign

	while(isspace(*src))
	src++;

	if(src[0]=='-') {
	negative=true;
	src++;
	if(!src \|\| isspace(src))
	throw Exception("number.format", 0, "'-' is an invalid number");
	} else if(src[0]=='+') {
	src++;
	if(!src \|\| isspace(src))
	throw Exception("number.format", 0, "'+' is an invalid number");
	}

	for(c=src;c<src_end;c++) {
	unsigned char digit=lookup[*c];
	if(!digit && *c != abc_from[0] \|\| digit>=base_from) {
	for(unsigned char *s=c;s<src_end;s++)
	if(!isspace(*s))
	throw Exception("number.format", 0, "'%c' is an invalid digit", *s);
	src_end=c;
	break;
	}
	*c=digit;
	}

	}

	if(src==src_end) {
	if(result_file)
	r.write(*result_file);
	return;
}	}

unsigned long long int value=pa_atoul(str, base_from);	// core, using log since log2 is not present in FreeBSD < 8.X

	Array<char> remainders((size_t)round(data.length * log((double)base_from) / log((double)base_to)) + 1);

	do {
	int carry = 0;
	unsigned char *dst = src;
	for (c=src; c<src_end; c++) {
	carry = carry * base_from + *c;
	if (carry >= base_to) {
	*(dst++) = (unsigned char)(carry / base_to);
	carry %= base_to;
	} else if (dst > src) {
	*(dst++) = 0;
	}
	}
	src_end = dst;
	remainders += abc_to[carry];
	} while (src_end > src);

	// result processing

char result_cstr[sizeof(unsigned long long int)8+1/minus for negative number/+1/terminator*/];	size_t result_length = negative + remainders.count();
char* ptr=result_cstr;	char result_str = (char )pa_malloc_atomic(result_length+1);
if(negative)	if(negative)
*ptr++='-';	result_str[0] = '-';
	for(size_t i=0; i<remainders.count(); i++)
	result_str[result_length - 1 - i] = remainders[i];
	result_str[result_length]='\0';

	if(result_file) {
	result_file->set(true /tainted/, 0 /binary/, result_str, result_length, 0, 0, &r);
	r.write(*result_file);
	} else {
	if(memchr(result_str, 0, result_length))
	throw Exception(PARSER_RUNTIME, 0, "Invalid \\x00 character found while converting to string. Convert to file instead.");

	fix_line_breaks(result_str, result_length);

toBase(value, base_to, ptr);	if(result_length)
*ptr=0;	r.write(*new String(result_str, String::L_TAINTED));
r.write_pass_lang(*new String(pa_strdup(result_cstr)));	}
}	}

// constructor	// constructor

MMath::MMath(): Methoded("math") {	MMath::MMath(): Methoded("math") {
// ^FUNC(expr)	// ^FUNC(expr)
#define ADDX(name, X) \	#define ADDN(name, N) \
add_native_method(#name, Method::CT_STATIC, _##name, X, X)	add_native_method(#name, Method::CT_STATIC, _##name, N, N)
#define ADD0(name) ADDX(name, 0)	#define ADD1(name) ADDN(name, 1)
#define ADD1(name) ADDX(name, 1)
#define ADD2(name) ADDX(name, 2)

ADD1(round); ADD1(floor); ADD1(ceiling);	ADD1(round); ADD1(floor); ADD1(ceiling);
ADD1(trunc); ADD1(frac);	ADD1(trunc); ADD1(frac);
ADD1(abs); ADD1(sign);	ADD1(abs); ADD1(sign);
ADD1(exp);	ADD1(exp);
ADD1(log); ADD1(log10);	ADD1(log); ADD1(log10);
ADD1(sin); ADD1(asin);	ADD1(sin); ADD1(asin);
ADD1(cos); ADD1(acos);	ADD1(cos); ADD1(acos);
ADD1(tan); ADD1(atan);	ADD1(tan); ADD1(atan); ADDN(atan2, 2);
ADD1(degrees); ADD1(radians);	ADD1(degrees); ADD1(radians);
ADD1(sqrt);	ADD1(sqrt);
ADD1(random);	ADD1(random);

// ^math:pow(x;y)	// ^math:pow(x;y)
ADD2(pow);	ADDN(pow, 2);

	// ^math:eq(a;b[;precision])
	add_native_method("eq", Method::CT_STATIC, _eq, 2, 3);

// ^math:crypt[password;salt]	// ^math:crypt[password;salt]
ADD2(crypt);	ADDN(crypt, 2);

// ^math:md5[string]	// ^math:md5[string]
ADD1(md5);	ADD1(md5);
Line 594 MMath::MMath(): Methoded("math") {	Line 797 MMath::MMath(): Methoded("math") {
ADD1(crc32);	ADD1(crc32);

// ^math:uuid[]	// ^math:uuid[]
ADD0(uuid);	// ^math:uuid[options hash]
	add_native_method("uuid", Method::CT_STATIC, _uuid, 0, 1);

	// ^math:uuid7[]
	// ^math:uuid7[options hash]
	add_native_method("uuid7", Method::CT_STATIC, _uuid7, 0, 1);

// ^math:uid64[]	// ^math:uid64[]
ADD0(uid64);	// ^math:uid64[options hash]
	add_native_method("uid64", Method::CT_STATIC, _uid64, 0, 1);

// ^math:convert[number](base-from;base-to)	// ^math:convert[number\|file](base-from)\|[abc_from](base-to)\|[abc_to][options]
add_native_method("convert", Method::CT_STATIC, _convert, 3, 3);	add_native_method("convert", Method::CT_STATIC, _convert, 3, 4);
}	}

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Removed from v.1.80
changed lines
	Added in v.1.113