/src/libbeye/libbeye.c
C | 742 lines | 578 code | 51 blank | 113 comment | 122 complexity | 8bd7ecf885df453240cffc43c6d25d51 MD5 | raw file
Possible License(s): AGPL-1.0
- /**
- * @namespace libbeye
- * @file libbeye/libbeye.c
- * @brief This file contains implementation of extension of C library.
- * @version -
- * @remark this source file is part of Binary EYE project (BEYE).
- * The Binary EYE (BEYE) is copyright (C) 1995 Nickols_K.
- * All rights reserved. This software is redistributable under the
- * licence given in the file "Licence.en" ("Licence.ru" in russian
- * translation) distributed in the BEYE archive.
- * @note Requires POSIX compatible development system
- *
- * @author Nickols_K
- * @since 1995
- * @note Development, fixes and improvements
- * @todo Increase number of functions
- **/
- #include <string.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <stdio.h>
- #include <ctype.h>
- #include <limits.h>
- #include "libbeye/sysdep/__config.h"
- #if __WORDSIZE == 16
- #include <mem.h>
- #endif
- #include "libbeye/pmalloc.h"
- bool __FASTCALL__ isseparate(int ch) { return (isspace(ch) || ispunct(ch)); }
- void __FASTCALL__ __nls_PrepareOEMForTVio(tvioBuff *it,unsigned size)
- {
- unsigned i;
- unsigned char ch;
- for(i = 0;i < size;i++)
- {
- ch = it->chars[i];
- it->oem_pg[i] = NLS_IS_OEMPG(ch) ? ch : 0;
- }
- __nls_OemToOsdep(it->chars,size);
- }
- void __FASTCALL__ memupr(void *ptr,unsigned n)
- {
- unsigned i;
- for(i = 0;i < n;i++)
- ((char *)ptr)[i] = toupper(((char *)ptr)[i]);
- }
- void __FASTCALL__ memlwr(void *ptr,unsigned n)
- {
- unsigned i;
- for(i = 0;i < n;i++)
- ((char *)ptr)[i] = tolower(((char *)ptr)[i]);
- }
- int __FASTCALL__ szTrimTrailingSpace(char *str)
- {
- unsigned len;
- int ret;
- len = strlen(str);
- ret = 0;
- while(len)
- {
- unsigned char ch;
- ch = str[len-1];
- if(isspace(ch) && ch < 0x80) { str[--len] = '\0'; ret++; }
- else break;
- }
- return ret;
- }
- int __FASTCALL__ szTrimLeadingSpace(char *str)
- {
- unsigned i,freq,len;
- len = strlen(str);
- for(i = freq = 0;i < len;i++)
- {
- unsigned char ch;
- ch = str[i];
- if(isspace(ch) && ch < 0x80) freq++;
- else break;
- }
- if(freq)
- {
- len -= freq;
- memmove(str,&str[freq],len+1);
- }
- return freq;
- }
- #define TEXT_TAB 8
- void __FASTCALL__ szSpace2Tab(char *dest,const char * src)
- {
- unsigned int i,len,limit,dest_idx;
- int j;
- unsigned char buff[8],nspc;
- len = strlen(src);
- i = 0;
- dest_idx = 0;
- while(1)
- {
- if(i + TEXT_TAB < len)
- {
- memcpy(buff,&src[i],8);
- i+=8;
- /* scan */
- nspc = 0;
- for(j = TEXT_TAB-1;j >= 0;j--)
- {
- if(buff[j] != ' ') break;
- else nspc++;
- }
- limit = TEXT_TAB - nspc;
- memcpy(&dest[dest_idx],buff,limit);
- dest_idx += limit;
- if(nspc) dest[dest_idx++] = '\t';
- }
- else
- {
- limit = len - i;
- memcpy(&dest[dest_idx],&src[i],limit);
- dest_idx += limit;
- i += limit;
- break;
- }
- }
- dest[dest_idx] = '\0';
- }
- int __FASTCALL__ szTab2Space(char * dest,const char * src)
- {
- int i,k,len;
- size_t size;
- unsigned int freq;
- unsigned char ch;
- len = strlen(src);
- for(freq = 0,i = k = 0;i < len;i++,freq++)
- {
- ch = src[i];
- if(ch == '\t')
- {
- size = TEXT_TAB - (freq%TEXT_TAB);
- memset(&dest[k],' ',size);
- k += size;
- freq += size-1;
- }
- else
- {
- dest[k] = ch;
- k++;
- }
- }
- return k;
- }
- char * __FASTCALL__ szKillSpaceAround(char *str,char *place)
- {
- char *sptr;
- unsigned nmoves,len,idx,freq;
- unsigned char prev;
- unsigned char ch;
- prev = *place;
- len = strlen(str);
- *place = 0;
- idx = place - str;
- nmoves = szTrimTrailingSpace(str);
- sptr = place;
- freq = 0;
- sptr++;
- while((ch = *sptr) != 0)
- {
- if(isspace(ch)) freq++;
- else break;
- sptr++;
- }
- memmove(&str[idx-nmoves],&str[idx+freq],len-idx+1-freq);
- str[idx-nmoves] = prev;
- return &str[idx-nmoves];
- }
- #if __WORDSIZE == 16
- void huge * __FASTCALL__ HMemCpy(void huge *_dest, const void huge *_source, unsigned long n)
- {
- long i;
- for(i = 0;i < n;i++)
- {
- ((char huge *)_dest)[i] = ((const char huge *)_source)[i];
- }
- return _dest;
- }
- #endif
- #ifdef __GNUC__
- /* (emx+gcc) -- Copyright (c) 1990-1995 by Eberhard Mattes */
- char *ltoa (long value, char *string, int radix)
- {
- char *dst;
- dst = string;
- if (radix < 2 || radix > 36) *dst = 0;
- else
- {
- unsigned long x;
- int i, n;
- char digits[32];
- if (radix == 10 && value < 0)
- {
- *dst++ = '-';
- x = -value;
- }
- else x = value;
- i = 0;
- do
- {
- n = x % radix;
- digits[i++] = n+(n < 10 ? '0' : 'A'-10);
- x /= radix;
- } while (x != 0);
- while (i > 0) *dst++ = digits[--i];
- *dst = 0;
- }
- return string;
- }
- char *ultoa (unsigned long value, char *string, int radix)
- {
- char *dst;
- dst = string;
- if (radix < 2 || radix > 36) *dst = 0;
- else
- {
- int i;
- unsigned n;
- char digits[32];
- i = 0;
- do
- {
- n = value % radix;
- digits[i++] = n+(n < 10 ? '0' : 'A'-10);
- value /= radix;
- } while (value != 0);
- while (i > 0) *dst++ = digits[--i];
- *dst = 0;
- }
- return string;
- }
- #endif
- #if __WORDSIZE >= 32
- char *lltoa (long long int value, char *string, int radix)
- {
- char *dst;
- dst = string;
- if (radix < 2 || radix > 36) *dst = 0;
- else
- {
- unsigned long long int x;
- int i, n;
- char digits[64];
- if (radix == 10 && value < 0)
- {
- *dst++ = '-';
- x = -value;
- }
- else x = value;
- i = 0;
- do
- {
- n = x % radix;
- digits[i++] = n+(n < 10 ? '0' : 'A'-10);
- x /= radix;
- } while (x != 0);
- while (i > 0) *dst++ = digits[--i];
- *dst = 0;
- }
- return string;
- }
- char *ulltoa (unsigned long long int value, char *string, int radix)
- {
- char *dst;
- dst = string;
- if (radix < 2 || radix > 36) *dst = 0;
- else
- {
- int i;
- unsigned n;
- char digits[64];
- i = 0;
- do
- {
- n = value % radix;
- digits[i++] = n+(n < 10 ? '0' : 'A'-10);
- value /= radix;
- } while (value != 0);
- while (i > 0) *dst++ = digits[--i];
- *dst = 0;
- }
- return string;
- }
- #endif
- /*
- Using own code for qsort and bsearch functions is guarantee of stable work */
- /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
- /* Modified for use with 16-bits huge arrays by Nickols_K */
- /*-
- * Copyright (c) 1980, 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. Neither the name of the University nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
- /*
- * qsort.c:
- * Our own version of the system qsort routine which is faster by an average
- * of 25%, with lows and highs of 10% and 50%.
- * The THRESHold below is the insertion sort threshold, and has been adjusted
- * for records of size 48 bytes.
- * The MTHREShold is where we stop finding a better median.
- */
- #define THRESH 4 /**< threshold for insertion */
- #define MTHRESH 6 /**< threshold for median */
- static func_compare qcmp; /**< the comparison routine */
- static int qsz; /**< size of each record */
- static long thresh; /**< THRESHold in chars */
- static long mthresh; /**< MTHRESHold in chars */
- /**
- * qst:
- * Do a quicksort
- * First, find the median element, and put that one in the first place as the
- * discriminator. (This "median" is just the median of the first, last and
- * middle elements). (Using this median instead of the first element is a big
- * win). Then, the usual partitioning/swapping, followed by moving the
- * discriminator into the right place. Then, figure out the sizes of the two
- * partions, do the smaller one recursively and the larger one via a repeat of
- * this code. Stopping when there are less than THRESH elements in a partition
- * and cleaning up with an insertion sort (in our caller) is a huge win.
- * All data swaps are done in-line, which is space-losing but time-saving.
- * (And there are only three places where this is done).
- */
- static void __NEAR__ qst(char __HUGE__ *base, char __HUGE__ *max)
- {
- long ii,lo,hi;
- char __HUGE__ *i, __HUGE__ *j,__HUGE__ *jj;
- char __HUGE__ *mid, __HUGE__ *tmp;
- /*
- * At the top here, lo is the number of characters of elements in the
- * current partition. (Which should be max - base).
- * Find the median of the first, last, and middle element and make
- * that the middle element. Set j to largest of first and middle.
- * If max is larger than that guy, then it's that guy, else compare
- * max with loser of first and take larger. Things are set up to
- * prefer the middle, then the first in case of ties.
- */
- lo = max - base; /* number of elements as chars */
- do {
- mid = i = base + qsz * ((lo / qsz) >> 1);
- if (lo >= mthresh)
- {
- j = (qcmp((jj = base), i) > 0 ? jj : i);
- if (qcmp(j, (tmp = max - qsz)) > 0)
- {
- /* switch to first loser */
- j = (j == jj ? i : jj);
- if (qcmp(j, tmp) < 0)
- j = tmp;
- }
- if (j != i)
- {
- ii = qsz;
- do{
- __XchgB__(i,j);
- i++; j++;
- } while (--ii);
- }
- }
- /*
- * Semi-standard quicksort partitioning/swapping
- */
- for (i = base, j = max - qsz; ; )
- {
- while (i < mid && qcmp(i, mid) <= 0)
- i += qsz;
- while (j > mid)
- {
- if (qcmp(mid, j) <= 0)
- {
- j -= qsz;
- continue;
- }
- tmp = i + qsz; /* value of i after swap */
- if (i == mid)
- {
- /* j <-> mid, new mid is j */
- mid = jj = j;
- }
- else
- {
- /* i <-> j */
- jj = j;
- j -= qsz;
- }
- goto swap;
- }
- if (i == mid)
- {
- break;
- }
- else
- {
- /* i <-> mid, new mid is i */
- jj = mid;
- tmp = mid = i; /* value of i after swap */
- j -= qsz;
- }
- swap:
- ii = qsz;
- do{
- __XchgB__(i,jj);
- i++; jj++;
- } while (--ii);
- i = tmp;
- }
- /*
- * Look at sizes of the two partitions, do the smaller
- * one first by recursion, then do the larger one by
- * making sure lo is its size, base and max are update
- * correctly, and branching back. But only repeat
- * (recursively or by branching) if the partition is
- * of at least size THRESH.
- */
- i = (j = mid) + qsz;
- if ((lo = j - base) <= (hi = max - i))
- {
- if (lo >= thresh)
- qst(base, j);
- base = i;
- lo = hi;
- }
- else
- {
- if (hi >= thresh)
- qst(i, max);
- max = j;
- }
- } while (lo >= thresh);
- }
- /*
- * qsort:
- * First, set up some global parameters for qst to share. Then, quicksort
- * with qst(), and then a cleanup insertion sort ourselves. Sound simple?
- * It's not...
- */
- void __FASTCALL__ HQSort(void __HUGE__ *base0,unsigned long num, unsigned width,
- func_compare compare)
- {
- char __HUGE__ *base = (char __HUGE__ *)base0;
- char __HUGE__ *i, __HUGE__ *j, __HUGE__ *lo, __HUGE__ *hi;
- char __HUGE__ *min, __HUGE__ *max;
- register char c;
- if (num <= 1)
- return;
- qsz = width;
- qcmp = compare;
- thresh = qsz * THRESH;
- mthresh = qsz * MTHRESH;
- max = base + num * qsz;
- if (num >= THRESH)
- {
- qst(base, max);
- hi = base + thresh;
- }
- else
- {
- hi = max;
- }
- /*
- * First put smallest element, which must be in the first THRESH, in
- * the first position as a sentinel. This is done just by searching
- * the first THRESH elements (or the first n if n < THRESH), finding
- * the min, and swapping it into the first position.
- */
- for (j = lo = base; (lo += qsz) < hi; )
- if (qcmp(j, lo) > 0)
- j = lo;
- if (j != base)
- {
- /* swap j into place */
- for (i = base, hi = base + qsz; i < hi; )
- {
- __XchgB__(i,j);
- i++; j++;
- }
- }
- /*
- * With our sentinel in place, we now run the following hyper-fast
- * insertion sort. For each remaining element, min, from [1] to [n-1],
- * set hi to the index of the element AFTER which this one goes.
- * Then, do the standard insertion sort shift on a character at a time
- * basis for each element in the frob.
- */
- for (min = base; (hi = min += qsz) < max; )
- {
- while (qcmp(hi -= qsz, min) > 0)
- /* void */;
- if ((hi += qsz) != min) {
- for (lo = min + qsz; --lo >= min; )
- {
- c = *lo;
- for (i = j = lo; (j -= qsz) >= hi; i = j)
- *i = *j;
- *i = c;
- }
- }
- }
- }
- void __HUGE__ * __FASTCALL__ HLFind(const void *key,void __HUGE__ *base,unsigned long nelem,unsigned width,
- func_compare compare)
- {
- unsigned long iter,start,end;
- void __HUGE__ *it;
- tCompare comp_result;
- start = 0;
- end = nelem;
- iter = nelem >> 1;
- while(1)
- {
- it = (char __HUGE__ *)base + iter*width;
- comp_result = (*compare)(key,it);
- if(!comp_result) return it;
- if(end - start < 5) break;
- if(comp_result > 0) start = iter;
- else end = iter;
- iter = start + ((end - start) >> 1L);
- }
- for(iter = start;iter < end;iter++)
- {
- it = (char __HUGE__ *)base + iter*width;
- if(!(*compare)(key,it)) return it;
- }
- return NULL;
- }
- unsigned long __FASTCALL__ HLFindNearest(const void *key,void __HUGE__ *base,unsigned long nelem,
- unsigned width,
- func_compare compare)
- {
- unsigned long iter,start,end;
- tCompare comp_result,comp_result2;
- start = 0;
- end = nelem;
- iter = nelem >> 1;
- while(1)
- {
- comp_result = (*compare)(key,(char __HUGE__ *)base + iter*width);
- if(!comp_result) return iter;
- if(end - start < 5) break;
- if(comp_result > 0) start = iter;
- else end = iter;
- iter = start + ((end - start)>>1L);
- }
- for(iter = start;iter < end;iter++)
- {
- comp_result = (*compare)(key,(char __HUGE__ *)base + iter*width);
- comp_result2 = iter < (nelem-1) ? (*compare)(key,(char __HUGE__ *)base + (iter+1)*width):
- -1;
- if(comp_result >= 0 && comp_result2 < 0) return iter;
- }
- return comp_result < 0 ? (start ? start - 1 : 0L)
- : end == nelem ? nelem-1 : end;
- }
- /*
- print message when window system is not initialized
- only this function must be used for error reporting
- (do not use printf, fprintf, etc. !)
- */
- int printm(const char *str,...)
- {
- #define _out_ stderr
- int i;
- va_list args;
- va_start(args,str);
- i = vfprintf(_out_,str,args);
- va_end(args);
- fflush(_out_);
- return i;
- #undef _out_
- }
- linearArray * __FASTCALL__ la_Build( unsigned long nitems, unsigned size_of_item,
- void (__FASTCALL__ *mem_out)(const char *) )
- {
- linearArray * ret;
- ret = PMalloc(sizeof(linearArray));
- if(ret)
- {
- memset(ret,0,sizeof(linearArray));
- ret->itemSize = size_of_item;
- if(nitems)
- {
- ret->data = PHMalloc(nitems*size_of_item);
- if(ret->data)
- {
- ret->nSize = nitems;
- }
- }
- }
- else
- {
- if(mem_out) (*mem_out)("Creating array");
- }
- return ret;
- }
- void __FASTCALL__ la_ForEach(linearArray *obj,void (__FASTCALL__ *iter_func)(void __HUGE__ *))
- {
- unsigned long i;
- for(i = 0;i < obj->nItems;i++)
- {
- (*iter_func)(((char *)obj->data)+i*obj->itemSize);
- }
- }
- void __FASTCALL__ la_IterDestroy(linearArray *obj,void (__FASTCALL__ *del_it)(void __HUGE__ *))
- {
- la_ForEach(obj,del_it);
- PHFREE(obj->data);
- PFREE(obj);
- }
- void __FASTCALL__ la_Destroy(linearArray *obj)
- {
- if(obj)
- {
- PHFREE(obj->data);
- PFREE(obj);
- }
- }
- #define LST_STEP 16
- void __HUGE__* __FASTCALL__ la_AddData(linearArray *obj,const void *udata,void (__FASTCALL__ *mem_out)(const char *))
- {
- void __HUGE__*to;
- if(obj->nSize > ULONG_MAX - (LST_STEP+1)) return 0;
- if(obj->nItems + 1 > obj->nSize)
- {
- void *ptr;
- if(!obj->data) ptr = PHMalloc((obj->nSize+LST_STEP)*obj->itemSize);
- else ptr = PHRealloc(obj->data,obj->itemSize*(obj->nSize+LST_STEP));
- if(ptr)
- {
- obj->nSize = obj->nSize+LST_STEP;
- obj->data = ptr;
- }
- else
- {
- if(mem_out) (*mem_out)("Building List");
- return NULL;
- }
- }
- to = ((char __HUGE__ *)obj->data) + obj->nItems*obj->itemSize;
- HMemCpy(to,udata,obj->itemSize);
- obj->nItems++;
- return to;
- }
- void __FASTCALL__ la_DeleteData(linearArray *obj,unsigned long idx) {
- char __HUGE__ *from;
- char __HUGE__ *to;
- if(idx >= obj->nItems) return;
- to = ((char __HUGE__ *)obj->data) + idx*obj->itemSize;
- from = ((char __HUGE__ *)obj->data) + (idx+1)*obj->itemSize;
- memmove(to,from,(obj->nItems-(idx+1))*obj->itemSize);
- obj->nItems--;
- }
- void __FASTCALL__ la_Sort(linearArray *obj,func_compare compare)
- {
- if(obj)
- if(obj->nItems)
- HQSort(obj->data,obj->nItems,obj->itemSize,compare);
- }
- void __HUGE__ *__FASTCALL__ la_Find(linearArray * obj,const void *key,
- func_compare compare)
- {
- void __HUGE__ * ret = NULL;
- if(obj)
- if(obj->nItems)
- ret = HLFind(key,obj->data,obj->nItems,obj->itemSize,compare);
- return ret;
- }
- unsigned long __FASTCALL__ la_FindNearest(linearArray *obj,const void *key,
- func_compare compare)
- {
- unsigned long ret = 0L;
- if(obj)
- if(obj->nItems)
- ret = HLFindNearest(key,obj->data,obj->nItems,obj->itemSize,compare);
- return ret;
- }