88 lines
2.1 KiB
HolyC
88 lines
2.1 KiB
HolyC
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U0 DirContextDel(CDirContext *dirc,Bool restore=TRUE)
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{//Change back to old cur_dir and drv.
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CBlkDev *bd;
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if (!dirc) return;
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if (restore) {
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bd=dirc->old_dv->bd;
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if (!(bd->flags & BDF_INIT_IN_PROGRESS)) {
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if (dirc->old_dir) {
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Drv(Drv2Let(dirc->old_dv));
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Cd(dirc->old_dir);
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}
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} else {
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Fs->cur_dv=dirc->old_dv;
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Free(Fs->cur_dir);
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Fs->cur_dir=StrNew("/");
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}
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}
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Free(dirc->old_dir);
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Free(dirc->mask);
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Free(dirc);
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}
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CDirContext *DirContextNew(U8 *_mask,Bool make_mask=FALSE,
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Bool make_dirs=FALSE,Bool no_mask=FALSE)
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{//Save cur_dir and drv. Change to new dir.
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Bool valid=TRUE,old_silent;
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I64 mask_len=StrLen(_mask);
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U8 *buf,*mask,*tmp_mask,*semicolon_mask;
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CDirContext *dirc=CAlloc(sizeof(CDirContext));
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dirc->old_dir=StrNew(Fs->cur_dir);
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dirc->old_dv=Fs->cur_dv;
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mask=MStrUtil(_mask,SUF_REM_LEADING|SUF_REM_TRAILING|SUF_REM_CTRL_CHARS);
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tmp_mask=mask;
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if (*mask && mask[1]==':') {
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if (Fs->cur_dv!=Let2Drv(*mask) && !Drv(*mask))
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valid=FALSE;
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mask+=2;
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}
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if (*mask=='~' && Fs->cur_dv!=Let2Drv('~') && !Drv('~'))
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valid=FALSE;
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dirc->dv=Fs->cur_dv;
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DrvChk(dirc->dv);
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buf=MAlloc(mask_len+2);
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StrCpy(buf,mask);
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dirc->mask=MAlloc(mask_len+2);
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if (no_mask)
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*dirc->mask=0;
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else if (StrOcc(buf,';')) {
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semicolon_mask=MAlloc(mask_len+2);
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StrCpy(semicolon_mask,mask);
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StrFirstRem(semicolon_mask,";",buf);
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StrLastRem(buf,"/",dirc->mask);
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CatPrint(dirc->mask,";%s",semicolon_mask);
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Free(semicolon_mask);
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} else
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StrLastRem(buf,"/",dirc->mask);
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if (*mask=='/' && !*buf)
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StrCpy(buf,"/");
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//If began with Dir, change to Dir.
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if (*buf && !Cd(buf,make_dirs))
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valid=FALSE;
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if (valid && make_mask) {
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if (!*dirc->mask) {
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Free(dirc->mask);
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dirc->mask=StrNew("*");
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} else {
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if (!make_dirs || FileNameChk(dirc->mask)) {
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old_silent=Silent;
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//Try mask to see if Dir. If Dir, change to dir and set to "*".
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if (Cd(dirc->mask,make_dirs)) {
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Free(dirc->mask);
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dirc->mask=StrNew("*");
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}
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Silent(old_silent);
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}
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}
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}
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Free(buf);
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Free(tmp_mask);
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if (!valid) {
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DirContextDel(dirc);
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dirc=NULL;
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}
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return dirc;
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}
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