380 lines
7.7 KiB
C++
380 lines
7.7 KiB
C++
U8 *FileExtDot(U8 *src)
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{
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U8 ch;
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while (ch=*src++)
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if (ch=='.' && *src!='/' && *src!='.')
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return src-1;
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return NULL;
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}
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U8 *FileExtRem(U8 *src,U8 *dst=NULL)
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{
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U8 *ptr;
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if (ptr=FileExtDot(src)) {
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if (dst)
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StrCpy(dst,ptr+1);
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*ptr=0;
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} else if (dst)
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*dst=0;
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return dst;
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}
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Bool IsDotZ(U8 *filename)
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{
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I64 i=StrLen(filename);
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if (i>6 && filename[i-1]=='Z' && filename[i-2]=='.' && filename[i-6]=='.')
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return TRUE;
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else
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return FALSE;
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}
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Bool IsDotC(U8 *filename)
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{
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I64 i=StrLen(filename);
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if (i>6 && filename[i-1]=='C' && filename[i-2]=='.' && filename[i-6]=='.')
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return TRUE;
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else
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return FALSE;
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}
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Bool IsTextFile(U8 *filename)
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{
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return FilesFindMatch(TEXT_FILE_MASK,filename);
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}
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Bool IsSrcFile(U8 *filename)
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{
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return FilesFindMatch(SRC_FILE_MASK,filename);
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}
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Bool FilesFindMatch(U8 *files_find_mask,U8 *filename,I64 fuf_flags=0)
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{
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U8 *st1=StrNew(files_find_mask),
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*st2=MAlloc(StrLen(files_find_mask)+1);
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Bool result=FALSE;
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while (TRUE) {
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StrFirstRem(st1,";",st2);
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if (*st2) {
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if (*st2=='~') {
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if (WildCardMatch(st2+1,filename)) {
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result=FALSE;
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break;
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}
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} else {
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if (WildCardMatch(st2,filename)) {
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if (Bt(&fuf_flags,FUf_JUST_TEXT_FILES) && !IsTextFile(filename)) {
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result=FALSE;
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break;
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} else if (Bt(&fuf_flags,FUf_JUST_SRC_FILES) && !IsSrcFile(filename)) {
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result=FALSE;
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break;
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} else
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result=TRUE;
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}
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}
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} else
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break;
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}
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Free(st1);
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Free(st2);
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return result;
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}
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U0 PrtChk(CPrt *p)
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{
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if (!p || p->pt_signature!=PRT_SIGNATURE_VAL)
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throw(EXCEPT_PRT,4);
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}
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U8 Prt2Drv(CPrt *p=NULL)
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{
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if (!p)
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p=Fs->cur_prt;
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PrtChk(p);
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return p->drv_let;
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}
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CPrt *Drv2Prt(U8 drv_let=0)
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{
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CPrt *p;
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if (!drv_let)
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p=Fs->cur_prt;
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else if (drv_let==':')
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p=dft_prt;
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else
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p=drv_to_prt[ToUpper(drv_let)-'A'];
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PrtChk(p);
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return p;
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}
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U0 BlkDevChk(CBlkDev *bdev)
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{
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if (!bdev || bdev->bd_signature!=BD_SIGNATURE_VAL)
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throw(EXCEPT_BLKDEV,1);
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if (bdev->type<=BDT_NULL || bdev->type>BDT_NON_NATIVE_FILE)
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throw(EXCEPT_BLKDEV,2);
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}
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CBlkDev *Drv2BlkDev(U8 drv_let=0)
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{
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CPrt *p=Drv2Prt(drv_let);
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CBlkDev *bdev=p->bdev;
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BlkDevChk(bdev);
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return bdev;
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}
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CBlkDev *Drv2BlkDevFwded(U8 drv_let=0)
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{
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CBlkDev *bdev=Drv2BlkDev(drv_let);
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while (bdev && bdev->non_native_drv)
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bdev=Drv2BlkDev(bdev->non_native_drv);
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return bdev;
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}
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Bool IsDrvWritable(U8 drv_let=0)
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{
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CBlkDev *bdev=Drv2BlkDev(drv_let);
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if (bdev->flags & BDF_READ_ONLY)
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return FALSE;
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else
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return TRUE;
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}
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U8 *CurDir(CTask *task=NULL,CTask *mem_task=NULL)
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{
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U8 *st;
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if (!task) task=Fs;
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if (!task->cur_dir)
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return NULL;
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st=MAlloc(StrLen(task->cur_dir)+3,mem_task);
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*st=Prt2Drv;
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st[1]=':';
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StrCpy(st+2,task->cur_dir);
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return st;
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}
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U8 *DirNameAbs(U8 *_dirname)
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{
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I64 maxlen;
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U8 drv[3],*cur_dir,*buf2,*buf3,*buf,*dirname,*temp_name;
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if (!Fs->cur_dir || !*Fs->cur_dir)
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return StrNew(_dirname);
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dirname=MStrUtil(_dirname,
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SUF_REM_LEADING|SUF_REM_TRAILING|SUF_REM_CTRL_CHARS);
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temp_name=dirname;
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*drv=Prt2Drv;
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drv[1]=':';
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drv[2]=0;
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if (*dirname && dirname[1]==':') {
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if (*dirname==':')
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*drv=dft_drv;
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else
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*drv=*dirname;
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dirname=dirname+2;
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cur_dir=StrNew("/");
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} else
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cur_dir=StrNew(Fs->cur_dir);
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if (*dirname=='/') {
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Free(cur_dir);
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cur_dir=StrNew("/");
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dirname++;
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}
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buf2=StrNew(dirname);
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maxlen=StrLen(cur_dir)+1+StrLen(buf2)+1;
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buf3=MAlloc(maxlen);
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buf =MAlloc(maxlen);
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StrCpy(buf3,cur_dir);
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while (*buf2) {
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StrFirstRem(buf2,"/",buf);
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if (!*buf)
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StrCpy(buf3,"/");
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else if (!StrCmp(buf,"..")) {
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StrLastRem(buf3,"/");
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if (!*buf3)
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StrCpy(buf3,"/");
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} else if (!StrCmp(buf,".")) {
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;
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} else if (*buf) {
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if (!StrCmp(buf,"HOME")) {
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Free(buf3);
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buf3=MAlloc(maxlen+StrLen(sys_acct));
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StrCpy(buf3,sys_acct+2);
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*drv=*sys_acct;
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} else {
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if (StrCmp(buf3,"/"))
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StrCat(buf3,"/");
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StrCat(buf3,buf);
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}
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}
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}
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Free(cur_dir);
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cur_dir=MAlloc(StrLen(buf3)+3);
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StrCpy(cur_dir,drv);
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StrCpy(cur_dir+2,buf3);
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Free(buf);
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Free(buf2);
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Free(buf3);
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Free(temp_name);
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return cur_dir;
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}
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U8 *FileNameAbs(U8 *_filename)
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{
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U8 *buf,*buf2,*buf3,*filename,*temp_name,*temp_buf;
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filename=MStrUtil(_filename,
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SUF_REM_LEADING|SUF_REM_TRAILING|SUF_REM_CTRL_CHARS);
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temp_name=filename;
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buf=StrNew(filename);
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temp_buf=buf;
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if (*buf && buf[1]==':') {
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buf+=2;
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filename+=2;
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}
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buf2=MAlloc(StrLen(temp_name)+1);
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StrLastRem(buf,"/",buf2);
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if (*filename=='/' && !*buf)
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StrCpy(buf,"/");
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buf3=DirNameAbs(temp_buf);
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Free(temp_buf);
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buf=MAlloc(StrLen(buf3)+1+StrLen(buf2)+1);
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StrCpy(buf,buf3);
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if (buf[StrLen(buf)-1]!='/')
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StrCat(buf,"/");
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StrCat(buf,buf2);
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Free(buf2);
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Free(buf3);
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Free(temp_name);
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return buf;
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}
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U8 *ChgExt(U8 *filename,U8 *extension)
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{//Change file name extension
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U8 *result=MAlloc(StrLen(filename)+1+StrLen(extension)+1);
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StrCpy(result,filename);
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if (FileExtDot(filename))
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FileExtRem(result);
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StrCat(result,".");
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StrCat(result,extension);
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return result;
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}
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U8 *DftExt(U8 *filename,U8 *extension)
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{//Give extension if has none.
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U8 *result=MAlloc(StrLen(filename)+1+StrLen(extension)+1);
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StrCpy(result,filename);
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if (!FileExtDot(filename)) {
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StrCat(result,".");
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StrCat(result,extension);
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}
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return result;
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}
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CDirEntry *CdDir(CDirEntry *tempm,U8 *abs_name)
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{
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I64 i;
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while (tempm) {
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i=StrLen(tempm->full_name);
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if (StrNCmp(tempm->full_name,abs_name,i))
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tempm=tempm->next;
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else
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if (StrLen(abs_name)==i)
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return tempm;
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else
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return CdDir(tempm->sub,abs_name);
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}
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return NULL;
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}
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I64 FileAttr(U8 *name,I64 attr=0)
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{
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if (IsDotZ(name))
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attr|=_ATTR_COMPRESSED;
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else
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attr&=~_ATTR_COMPRESSED;
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if (IsDotC(name))
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attr|=_ATTR_CONTIGUOUS;
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return attr;
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}
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Bool FileNameChk(U8 *filename)
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{
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U8 *ptr=filename;
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if (!filename) return FALSE;
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if (!*ptr) return FALSE;
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if (*ptr=='.') {
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if (!ptr[1]) return TRUE;
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if (ptr[1]=='.' && !ptr[2]) return TRUE;
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}
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if (StrLen(filename)>=CDIR_FILENAME_LEN) return FALSE;
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while (*ptr)
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if (!Bt(filename_chars_bitmap,*ptr++))
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return FALSE;
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return TRUE;
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}
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U8 *DirFile(U8 *dirname,U8 *name=NULL,U8 *_extension=NULL)
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{/*
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Strips file from dirname, scans for file upward until found or returns default.
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("/SparrowOS/OSMain/Hash1a.CPP.Z",NULL,NULL) returns "D:/SparrowOS/OSMain"
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("/SparrowOS/OSMain",NULL,"PRJ.Z") returns "D:/SparrowOS/OSMain/OSMain.PRJ.Z"
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("/SparrowOS/OSMain/Dsk",NULL,"PRJ.Z") returns "D:/SparrowOS/OSMain/OSMain.PRJ.Z"
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("/SparrowOS/Apps/MusicOrgan","Load","CPP.Z") returns "D:/SparrowOS/Apps/MusicOrgan/Load.CPP.Z"
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*/
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U8 *st=DirNameAbs(dirname),*st2,*st3,*result,*dft=NULL,*ext;
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if (_extension && *_extension) {
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if (*_extension=='.')
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ext=StrNew(_extension);
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else
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ext=MSPrintF(".%s",_extension);
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} else
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ext=StrNew("");
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while (StrOcc(st,'/')&&!IsDir(st))
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StrLastRem(st,"/");
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while (StrOcc(st,'/')) {
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st2=StrNew(st);
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st3=StrNew(st);
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StrLastRem(st2,"/",st3);
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if (name)
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result=MSPrintF("%s/%s%s",st,name,ext);
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else {
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if (*ext)
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result=MSPrintF("%s/%s%s",st,st3,ext);
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else
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result=StrNew(st);
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}
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if (!dft)
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dft=StrNew(result);
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if (!*ext&&(!name||!*name)||FileFind(result)) {
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Free(st3);
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Free(st2);
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Free(st);
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Free(dft);
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Free(ext);
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return result;
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}
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Free(st);
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st=st2;
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Free(st3);
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}
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Free(st);
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Free(ext);
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return dft;
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}
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U8 *ZorNotZ(U8 *name)
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{ //Compressed file name unless only uncompressed is available
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I64 i;
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U8 *result=StrNew(name);
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if (!*result||FileFind(result)||!IsDotZ(name))
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return result;
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i=StrLen(name)-2;
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result[i]=0;
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if (FileFind(result))
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return result;
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result[i]='.';
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return result;
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}
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