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/* |
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* CrossEdit - game world editor |
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* Copyright (C) 1993 Jarkko Sonninen & Petri Heinila |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* The authors can be reached via e-mail to Jarkko.Sonninen@lut.fi |
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* or Petri.Heinila@lut.fi . |
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*/ |
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|
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#include <Posix.h> |
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#include <Ansi.h> |
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#include <Str.h> |
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|
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#include <global.h> |
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#include <debug.h> |
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|
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#ifdef StrHasGeneratedSource |
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#include <StrG.c> |
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#endif |
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|
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/********************************************************************** |
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* private |
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**********************************************************************/ |
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|
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|
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/********************************************************************** |
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* public |
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**********************************************************************/ |
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|
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/* |
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* member: makes absolute pathname from relative |
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* src : migration ??? |
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* return: result |
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*/ |
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char *StrPathNormalize (char *this,char *src) { |
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char *p, *q; |
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char buf[MAX_BUF]; |
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static char path[MAX_BUF]; |
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|
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LOG(llevDebug,"path before normalization >%s<>%s<\n", src, this); |
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|
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if (*this == '/') { |
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strcpy (buf, this); |
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|
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} else { |
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strcpy (buf, src); |
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if ((p = strrchr (buf, '/'))) |
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p[1] = '\0'; |
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else |
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strcpy (buf, "/"); |
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strcat (buf, this); |
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} |
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|
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q = p = buf; |
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while ((q = strstr (q, "//"))) |
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p = ++q; |
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|
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*path = '\0'; |
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q = path; |
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p = strtok (p, "/"); |
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while (p) { |
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if (!strcmp (p, "..")) { |
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q = strrchr (path, '/'); |
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if (q) |
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*q = '\0'; |
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else { |
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*path = '\0'; |
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LOG (llevError, "Illegal path.\n"); |
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} |
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} else { |
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strcat (path, "/"); |
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strcat (path, p); |
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} |
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p = strtok (NULL, "/"); |
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} |
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LOG(llevDebug,"path after normalization >%s<\n", path); |
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|
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return (path); |
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} |
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|
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/* |
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* function: make new abs. path after cd |
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* cwd : current working directory, this have to be abs. path |
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* this have to be size PATH_MAX + 1, result is put to this |
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* cd : migration |
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* return : pointer to cwd, or NULL on error |
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*/ |
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char *StrPathCd(char *cwd,const char *cd) |
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{ |
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char *fields[PATH_MAX / 2 - 1],*fld,cdMove[PATH_MAX+1]; |
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char clt[PATH_MAX+1]; |
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int numFields,i; |
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|
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if(*cwd != '/') return NULL; |
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if(*cd == '/') return strcpy(cwd,cd); |
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|
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/*** load cwd by parts ***/ |
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numFields = 0; |
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if((fld = strtok(cwd,"/"))) { |
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do { |
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fields[numFields] = fld; |
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numFields++; |
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} while((fld = strtok(NULL,"/"))); |
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} |
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/*** traverse path by cd ***/ |
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numFields--; /* filename in cwd off */ |
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strcpy(cdMove,cd); |
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if((fld = strtok(cdMove,"/"))) { |
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do { |
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if(!strcmp(fld,".")) continue; |
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if(!strcmp(fld,"..")) { |
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numFields--; |
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} else { |
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fields[numFields] = fld; |
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numFields++; |
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} |
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} while((fld = strtok(NULL,"/"))); |
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} |
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/*** collect them ***/ |
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strcpy(clt,""); |
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for(i=0; i < numFields; i++) { |
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strcat(clt,"/"); |
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strcat(clt,fields[i]); |
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} |
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return strcpy(cwd,clt); |
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} |
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|
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/* |
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* function: genrestes reletive cd argument, in which can move from |
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* cwd to dst |
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* cwd : currenntr working directory, gerenerated values is subtituted to |
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* this |
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* dst : destination directory |
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* return : pointer to cwd, or NULL on error |
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*/ |
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char *StrPathGenCd(char *cwd,const char *dstArg) |
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{ |
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#if 0 |
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int i,j,cnt; |
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char buf[BUFSIZ]; |
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|
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for(i=0; dst[i] && cwd[i] && dst[i] == cwd[i]; i++); |
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|
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debug2("cwd:%s dst:%s\n",cwd + i,dst + i); |
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|
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if(strtok(cwd + i,"/")) { |
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cnt += 1; |
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while(strtok(NULL,"/")) cnt++; |
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} |
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buf[0] = 0; |
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if(cnt > 0) { |
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for(j=0; j < cnt; j++) strcat(buf,"../"); |
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strcat(buf,dst + i); |
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} else { |
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strcpy(buf,dst + i + 1); |
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} |
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#else |
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char dst[PATH_MAX+1]; |
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char *cwdFields[PATH_MAX / 2 - 1],*dstFields[PATH_MAX / 2 - 1]; |
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int cwdNum,dstNum,i,start; |
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char *fld,buf[PATH_MAX+1]; |
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|
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/*** save dst ***/ |
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strcpy(dst,dstArg); |
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/*** load cwd by parts ***/ |
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cwdNum = 0; |
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if((fld = strtok(cwd,"/"))) { |
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do { |
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cwdFields[cwdNum] = fld; |
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cwdNum++; |
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} while((fld = strtok(NULL,"/"))); |
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} |
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/*** load dst by parts ***/ |
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dstNum = 0; |
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if((fld = strtok(dst,"/"))) { |
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do { |
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dstFields[dstNum] = fld; |
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dstNum++; |
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} while((fld = strtok(NULL,"/"))); |
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} |
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strcpy(buf,"."); |
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/*** wile same ***/ |
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for(start=0; |
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start < cwdNum && start < dstNum && |
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!strcmp(cwdFields[start],dstFields[start]); |
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start++); |
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/*** whilke guing up***/ |
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for(i=start; i < cwdNum - 1; i++) |
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strcat(buf,"/.."); |
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#if 0 |
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if(*buf) |
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buf[strlen(buf)-1] = '\0'; |
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#endif |
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/*** while gong down ***/ |
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for(i=start; i < dstNum; i++) { |
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strcat(buf,"/"); |
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strcat(buf,dstFields[i]); |
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} |
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#endif |
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return strcpy(cwd,buf); |
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} |
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|
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/* |
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* function: gets base-part of filename as basename(1) |
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* basename: allocated space for name |
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* filename: destination directory |
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* return : pointer to basename, or NULL on error |
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*/ |
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char *StrBasename(char *basename,const char *filename) |
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{ |
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char buf[PATH_MAX+1],*fields[PATH_MAX / 2 - 1],*fld; |
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int num; |
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|
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strcpy(buf,filename); |
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/*** load cwd by parts ***/ |
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num = 0; |
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if((fld = strtok(buf,"/"))) { |
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do { |
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fields[num] = fld; |
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num++; |
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} while((fld = strtok(NULL,"/"))); |
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} else { |
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return strcpy(basename,""); |
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} |
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return strcpy(basename,fields[num - 1]); |
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} |
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|
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/*** end of Str.c ***/ |
