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Rewrote the search path routines to use collections internally.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4654 b7a2c559-68d2-44c3-8de9-860c34a00d81
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@ -6,7 +6,7 @@
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/* */
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/* */
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/* */
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/* */
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/* */
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/* */
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/* (C) 2000-2009, Ullrich von Bassewitz */
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/* (C) 2000-2010, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* EMail: uz@cc65.org */
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@ -44,6 +44,7 @@
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#endif
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#endif
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/* common */
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/* common */
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#include "coll.h"
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#include "searchpath.h"
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#include "searchpath.h"
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#include "strbuf.h"
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#include "strbuf.h"
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#include "xmalloc.h"
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#include "xmalloc.h"
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@ -56,7 +57,19 @@
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static char* SearchPaths[MAX_SEARCH_PATHS];
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/* A search path list is a collection containing path elements. We have
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* several of those.
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*/
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static Collection SearchPaths[MAX_SEARCH_PATHS] = {
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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STATIC_COLLECTION_INITIALIZER,
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};
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@ -66,15 +79,12 @@ static char* SearchPaths[MAX_SEARCH_PATHS];
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static char* Add (char* Orig, const char* New)
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static void Add (Collection* Paths, const char* New)
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/* Create a new path from Orig and New, delete Orig, return the result */
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/* Cleanup a new search path and add it to the list */
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{
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{
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unsigned OrigLen, NewLen;
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unsigned NewLen;
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char* NewPath;
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char* NewPath;
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/* Get the length of the original string */
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OrigLen = Orig? strlen (Orig) : 0;
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/* Get the length of the new path */
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/* Get the length of the new path */
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NewLen = strlen (New);
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NewLen = strlen (New);
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@ -84,48 +94,32 @@ static char* Add (char* Orig, const char* New)
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}
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}
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/* Allocate memory for the new string */
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/* Allocate memory for the new string */
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NewPath = (char*) xmalloc (OrigLen + NewLen + 2);
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NewPath = (char*) xmalloc (NewLen + 1);
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/* Copy the strings */
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/* Copy the path and terminate it */
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memcpy (NewPath, Orig, OrigLen);
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memcpy (NewPath, New, NewLen);
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memcpy (NewPath+OrigLen, New, NewLen);
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NewPath [NewLen] = '\0';
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NewPath [OrigLen+NewLen+0] = ';';
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NewPath [OrigLen+NewLen+1] = '\0';
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/* Delete the original path */
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/* Add the path to the collection */
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xfree (Orig);
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CollAppend (Paths, NewPath);
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/* Return the new path */
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return NewPath;
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}
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}
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static char* Find (const char* Path, const char* File)
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static char* Find (const Collection* PathList, const char* File)
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/* Search for a file in a list of directories. If found, return the complete
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/* Search for a file in a list of directories. If found, return the complete
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* name including the path in a malloced data area, if not found, return 0.
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* name including the path in a malloced data area, if not found, return 0.
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*/
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*/
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{
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{
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const char* P;
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char* Name = 0;
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StrBuf PathName = AUTO_STRBUF_INITIALIZER;
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StrBuf PathName = AUTO_STRBUF_INITIALIZER;
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/* Initialize variables */
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P = Path;
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/* Handle a NULL pointer as replacement for an empty string */
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if (P == 0) {
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P = "";
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}
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/* Start the search */
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/* Start the search */
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while (*P) {
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unsigned I;
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/* Clear the string buffer */
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for (I = 0; I < CollCount (PathList); ++I) {
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SB_Clear (&PathName);
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/* Copy the next path element into the buffer */
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/* Copy the next path element into the buffer */
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while (*P != '\0' && *P != ';') {
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SB_CopyStr (&PathName, CollConstAt (PathList, I));
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SB_AppendChar (&PathName, *P++);
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}
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/* Add a path separator and the filename */
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/* Add a path separator and the filename */
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if (SB_NotEmpty (&PathName)) {
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if (SB_NotEmpty (&PathName)) {
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@ -136,23 +130,17 @@ static char* Find (const char* Path, const char* File)
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/* Check if this file exists */
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/* Check if this file exists */
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if (access (SB_GetBuf (&PathName), 0) == 0) {
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if (access (SB_GetBuf (&PathName), 0) == 0) {
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/* The file exists, return its name */
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/* The file exists, we're done */
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char* Name = xstrdup (SB_GetBuf (&PathName));
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Name = xstrdup (SB_GetBuf (&PathName));
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break;
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}
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}
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/* Cleanup and return the result of the search */
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SB_Done (&PathName);
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SB_Done (&PathName);
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return Name;
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return Name;
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}
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}
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/* Skip a list separator if we have one */
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if (*P == ';') {
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++P;
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}
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}
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/* Not found */
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SB_Done (&PathName);
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return 0;
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}
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void AddSearchPath (const char* NewPath, unsigned Where)
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void AddSearchPath (const char* NewPath, unsigned Where)
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@ -162,9 +150,8 @@ void AddSearchPath (const char* NewPath, unsigned Where)
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if (NewPath) {
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if (NewPath) {
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unsigned I;
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unsigned I;
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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unsigned Mask = (0x01U << I);
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if (Where & (0x01U << I)) {
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if (Where & Mask) {
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Add (&SearchPaths[I], NewPath);
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SearchPaths[I] = Add (SearchPaths[I], NewPath);
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}
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}
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}
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}
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}
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}
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@ -223,10 +210,13 @@ void ForgetAllSearchPaths (unsigned Where)
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{
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{
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unsigned I;
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unsigned I;
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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unsigned Mask = (0x01U << I);
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if (Where & (0x01U << I)) {
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if (Where & Mask) {
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unsigned J;
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xfree (SearchPaths[I]);
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Collection* P = &SearchPaths[I];
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SearchPaths[I] = 0;
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for (J = 0; J < CollCount (P); ++J) {
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xfree (CollAt (P, J));
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}
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CollDeleteAll (P);
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}
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}
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}
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}
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}
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}
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@ -240,9 +230,8 @@ char* SearchFile (const char* Name, unsigned Where)
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{
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{
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unsigned I;
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unsigned I;
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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for (I = 0; I < MAX_SEARCH_PATHS; ++I) {
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unsigned Mask = (0x01U << I);
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if (Where & (0x01U << I)) {
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if (Where & Mask) {
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char* Path = Find (&SearchPaths[I], Name);
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char* Path = Find (SearchPaths[I], Name);
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if (Path) {
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if (Path) {
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/* Found the file */
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/* Found the file */
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return Path;
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return Path;
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