mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-12 09:57:05 +03:00
2cfdddd8c6
git-svn-id: svn://kolibrios.org@6746 a494cfbc-eb01-0410-851d-a64ba20cac60
210 lines
5.4 KiB
C
210 lines
5.4 KiB
C
//visual text comparer
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//by den po - jdp@bk.ru
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#define MEMSIZE 4096 * 60
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#include "../lib/io.h"
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#include "../lib/strings.h"
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#include "../lib/obj/console.h"
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IO io1, io2;
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#define MAX_PATH 260
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#include "32user32.h"
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#include "objects.h"
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#include "diff_gui.h"
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#define mincmpstrings 2
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#define maxcmpstrings 10
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#define maxcmpoffset 100
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char window_title[] = "Kolibri Diff tool (Visual Text Comparer)";
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char* srcfilename;
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char* dstfilename;
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dword srcfile;
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dword dstfile;
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dword srcfilesize;
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dword dstfilesize;
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TCollection srcfilelines; //file lines
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TCollection dstfilelines;
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TCollection srcfilenums; //lines numbers
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TCollection dstfilenums;
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struct TSimpleCollection:TSortedCollection
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{
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TSimpleCollection();
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int Compare( int Key1, Key2 );
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};
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int TSimpleCollection::Compare( int Key1, Key2 ){
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return Key1-Key2;
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}
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TSimpleCollection::TSimpleCollection():TSortedCollection(1000,1000);
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{
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comparemethod=#Compare;
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}
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TSimpleCollection diffs; //list of differing strings
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dword srcfilelinks; //pointer to the previos line with the same first symbol
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dword dstfilelinks; //
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getstrings(dword srcfile,srcfilesize,srcfilelines){
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ECX=srcfilesize;
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ESI=srcfile;
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WHILE(ECX){
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$push ECX,ESI
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EAX=srcfilelines;
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EAX.TCollection.Insert(ESI);
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$pop ESI,ECX
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WHILE(ECX){
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$cld $lodsb ECX--;
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if(AL==0x0D)||(AL==0x0A)DSBYTE[ESI-1]=0;
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if(AL==0x0D)&&(DSBYTE[ESI]==0x0A){$lodsb;ECX--;}
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if(AL==0x0D)||(AL==0x0A)BREAK;
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}
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}
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}
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#include "if.h"
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bool getparam()
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{
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int i, param_len = strlen(#param);
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if (param[0]=='"') {
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for (i=1; i<param_len; i++) if (param[i]=='"') param[i]=NULL;
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srcfilename = #param + 1;
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dstfilename = #param + strlen(#param) + 3;
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return true;
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}
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notify("'Wrong params specified. Use next format:\nAPPPATH \"PARAM1\" \"PARAM2\"' -E");
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return false;
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}
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main(){
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if (param[0]) getparam();
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if (!srcfilename) || (!dstfilename) gui(); else console();
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}
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console() {
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int i;
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int p;
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int bs,bd,bsc,bdc,bsp,bdp;
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int cache[256];
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char s1;
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int s2;
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srcfile = io1.read(srcfilename);
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dstfile = io2.read(dstfilename);
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srcfilesize = io1.FILES_SIZE;
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dstfilesize = io2.FILES_SIZE;
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if (!srcfile) die("'First file not found' -E");
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if (!dstfile) die("'Second file not found' -E");
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srcfilelines.TCollection(srcfilesize/40,8192);
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dstfilelines.TCollection(dstfilesize/40,8192);
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//fill line pointers
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getstrings(srcfile,srcfilesize,#srcfilelines);
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getstrings(dstfile,dstfilesize,#dstfilelines);
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srcfilenums.TCollection(srcfilelines.Count,1000);
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dstfilenums.TCollection(dstfilelines.Count,1000);
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srcfilelinks=malloc(srcfilelines.Count*4);
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dstfilelinks=malloc(dstfilelines.Count*4);
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//fill links on the next strings with the same first symbols
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FillMemory(#cache,sizeof(cache),-1); i=srcfilelines.Count;
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WHILE(i){
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i--;
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EBX=srcfilelines.At(i); EBX=DSBYTE[EBX];
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DSDWORD[i<<2+srcfilelinks]=cache[EBX*4];
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cache[EBX*4]=i;
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}
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FillMemory(#cache,sizeof(cache),-1); i=dstfilelines.Count;
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WHILE(i){
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i--;
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EBX=dstfilelines.At(i); EBX=DSBYTE[EBX];
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DSDWORD[i<<2+dstfilelinks]=cache[EBX*4];
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cache[EBX*4]=i;
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}
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diffs.TSimpleCollection();
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while( bsp < srcfilelines.Count ) || ( bdp < dstfilelines.Count )
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{
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////////////////////////////////////////////////////////
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bsc=0;
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p=dstfilelines.At(bdp);//current dst position
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s1=DSBYTE[p];
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bs=bsp+1;//found src line, bsc - number of matched
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while( bs != -1 )//no next line starting with the same symbols
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&&(bs-bsp<=maxcmpoffset)//check for 100 lines depth
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&&(bs<srcfilelines.Count)
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{
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s2=srcfilelines.At(bs);
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if(!strcmp(p,s2))
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{//line found
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bsc=1;
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WHILE(bsc<maxcmpstrings)//counting number of matching lines
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&&(bdp+bsc<dstfilelines.Count)
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&&(bs+bsc<srcfilelines.Count)
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&&(!strcmp(dstfilelines.At(bdp+bsc),srcfilelines.At(bs+bsc)))bsc++;
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BREAK;
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}
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if(DSBYTE[s2]==s1)bs=DSDWORD[bs<<2+srcfilelinks];else bs++;
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}
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bdc=0;
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p=srcfilelines.At(bsp);//current src position
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s1=DSBYTE[p];
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bd=bdp+1;//found dst line, bsc - number of matched
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while( bd != -1 )//no next line starting with the same symbols
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&&(bd-bdp<=maxcmpoffset)//check for 100 lines depth
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&&(bd<dstfilelines.Count)
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{
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s2=dstfilelines.At(bd);
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if(!strcmp(p,s2))
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{
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bdc=1;
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WHILE(bdc<maxcmpstrings)//counting number of matching lines
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&&(bsp+bdc<srcfilelines.Count)
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&&(bd+bdc<dstfilelines.Count)
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&&(!strcmp(srcfilelines.At(bsp+bdc),dstfilelines.At(bd+bdc)))bdc++;
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BREAK;
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}
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if(DSBYTE[s2]==s1)bd=DSDWORD[bd<<2+dstfilelinks];else bd++;
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}
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if(bsc<bdc)
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if(bd-bdp<bdc)
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||(bdc>=mincmpstrings)
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{
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WHILE(bdp<bd){
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diffs.Insert(srcfilenums.Count);
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srcfilenums.Insert(-1); dstfilenums.Insert(bdp); bdp++;
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}
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continue;
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}
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if(strcmp(srcfilelines.At(bsp),dstfilelines.At(bdp)))diffs.Insert(srcfilenums.Count);
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//lines are equal
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srcfilenums.Insert(bsp); bsp++;
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dstfilenums.Insert(bdp); bdp++;
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CONTINUE;
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}
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free(srcfilelinks);
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free(dstfilelinks);
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if(!diffs.Count)
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notify("'Nothing to compare' -E");
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else ifinit();
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diffs.DeleteAll(); delete diffs;
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dstfilenums.DeleteAll(); delete dstfilenums;
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srcfilenums.DeleteAll(); delete srcfilenums;
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dstfilelines.DeleteAll(); delete dstfilelines;
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srcfilelines.DeleteAll(); delete srcfilelines;
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free(dstfile);
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free(srcfile);
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}
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