tclFileName.c
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上传日期:2015-12-11
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- /*
- * tclFileName.c --
- *
- * This file contains routines for converting file names betwen
- * native and network form.
- *
- * Copyright (c) 1995-1998 Sun Microsystems, Inc.
- * Copyright (c) 1998-1999 by Scriptics Corporation.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclFileName.c,v 1.40.2.15 2006/10/03 18:20:33 dgp Exp $
- */
- #include "tclInt.h"
- #include "tclPort.h"
- #include "tclRegexp.h"
- /*
- * This define is used to activate Tcl's interpretation of Unix-style
- * paths (containing forward slashes, '.' and '..') on MacOS. A
- * side-effect of this is that some paths become ambiguous.
- */
- #define MAC_UNDERSTANDS_UNIX_PATHS
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- /*
- * The following regular expression matches the root portion of a Macintosh
- * absolute path. It will match degenerate Unix-style paths, tilde paths,
- * Unix-style paths, and Mac paths. The various subexpressions in this
- * can be summarised as follows: ^(/..|~user/unix|~user:mac|/unix|mac:dir).
- * The subexpression indices which match the root portions, are as follows:
- *
- * degenerate unix-style: 2
- * unix-tilde: 5
- * mac-tilde: 7
- * unix-style: 9 (or 10 to cut off the irrelevant header).
- * mac: 12
- *
- */
- #define MAC_ROOT_PATTERN "^((/+([.][.]?/+)*([.][.]?)?)|(~[^:/]*)(/[^:]*)?|(~[^:]*)(:.*)?|/+([.][.]?/+)*([^:/]+)(/[^:]*)?|([^:]+):.*)$"
- /*
- * The following variables are used to hold precompiled regular expressions
- * for use in filename matching.
- */
- typedef struct ThreadSpecificData {
- int initialized;
- Tcl_Obj *macRootPatternPtr;
- } ThreadSpecificData;
- static Tcl_ThreadDataKey dataKey;
- static void FileNameCleanup _ANSI_ARGS_((ClientData clientData));
- static void FileNameInit _ANSI_ARGS_((void));
- #endif
- /*
- * The following variable is set in the TclPlatformInit call to one
- * of: TCL_PLATFORM_UNIX, TCL_PLATFORM_MAC, or TCL_PLATFORM_WINDOWS.
- */
- TclPlatformType tclPlatform = TCL_PLATFORM_UNIX;
- /*
- * Prototypes for local procedures defined in this file:
- */
- static CONST char * DoTildeSubst _ANSI_ARGS_((Tcl_Interp *interp,
- CONST char *user, Tcl_DString *resultPtr));
- static CONST char * ExtractWinRoot _ANSI_ARGS_((CONST char *path,
- Tcl_DString *resultPtr, int offset,
- Tcl_PathType *typePtr));
- static int SkipToChar _ANSI_ARGS_((char **stringPtr,
- char *match));
- static Tcl_Obj* SplitMacPath _ANSI_ARGS_((CONST char *path));
- static Tcl_Obj* SplitWinPath _ANSI_ARGS_((CONST char *path));
- static Tcl_Obj* SplitUnixPath _ANSI_ARGS_((CONST char *path));
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- /*
- *----------------------------------------------------------------------
- *
- * FileNameInit --
- *
- * This procedure initializes the patterns used by this module.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Compiles the regular expressions.
- *
- *----------------------------------------------------------------------
- */
- static void
- FileNameInit()
- {
- ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
- if (!tsdPtr->initialized) {
- tsdPtr->initialized = 1;
- tsdPtr->macRootPatternPtr = Tcl_NewStringObj(MAC_ROOT_PATTERN, -1);
- Tcl_CreateThreadExitHandler(FileNameCleanup, NULL);
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * FileNameCleanup --
- *
- * This procedure is a Tcl_ExitProc used to clean up the static
- * data structures used in this file.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Deallocates storage used by the procedures in this file.
- *
- *----------------------------------------------------------------------
- */
- static void
- FileNameCleanup(clientData)
- ClientData clientData; /* Not used. */
- {
- ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
- Tcl_DecrRefCount(tsdPtr->macRootPatternPtr);
- tsdPtr->initialized = 0;
- }
- #endif
- /*
- *----------------------------------------------------------------------
- *
- * ExtractWinRoot --
- *
- * Matches the root portion of a Windows path and appends it
- * to the specified Tcl_DString.
- *
- * Results:
- * Returns the position in the path immediately after the root
- * including any trailing slashes.
- * Appends a cleaned up version of the root to the Tcl_DString
- * at the specified offest.
- *
- * Side effects:
- * Modifies the specified Tcl_DString.
- *
- *----------------------------------------------------------------------
- */
- static CONST char *
- ExtractWinRoot(path, resultPtr, offset, typePtr)
- CONST char *path; /* Path to parse. */
- Tcl_DString *resultPtr; /* Buffer to hold result. */
- int offset; /* Offset in buffer where result should be
- * stored. */
- Tcl_PathType *typePtr; /* Where to store pathType result */
- {
- if (path[0] == '/' || path[0] == '\') {
- /* Might be a UNC or Vol-Relative path */
- CONST char *host, *share, *tail;
- int hlen, slen;
- if (path[1] != '/' && path[1] != '\') {
- Tcl_DStringSetLength(resultPtr, offset);
- *typePtr = TCL_PATH_VOLUME_RELATIVE;
- Tcl_DStringAppend(resultPtr, "/", 1);
- return &path[1];
- }
- host = &path[2];
- /* Skip separators */
- while (host[0] == '/' || host[0] == '\') host++;
- for (hlen = 0; host[hlen];hlen++) {
- if (host[hlen] == '/' || host[hlen] == '\')
- break;
- }
- if (host[hlen] == 0 || host[hlen+1] == 0) {
- /*
- * The path given is simply of the form
- * '/foo', '//foo', '/////foo' or the same
- * with backslashes. If there is exactly
- * one leading '/' the path is volume relative
- * (see filename man page). If there are more
- * than one, we are simply assuming they
- * are superfluous and we trim them away.
- * (An alternative interpretation would
- * be that it is a host name, but we have
- * been documented that that is not the case).
- */
- *typePtr = TCL_PATH_VOLUME_RELATIVE;
- Tcl_DStringAppend(resultPtr, "/", 1);
- return &path[2];
- }
- Tcl_DStringSetLength(resultPtr, offset);
- share = &host[hlen];
- /* Skip separators */
- while (share[0] == '/' || share[0] == '\') share++;
- for (slen = 0; share[slen];slen++) {
- if (share[slen] == '/' || share[slen] == '\')
- break;
- }
- Tcl_DStringAppend(resultPtr, "//", 2);
- Tcl_DStringAppend(resultPtr, host, hlen);
- Tcl_DStringAppend(resultPtr, "/", 1);
- Tcl_DStringAppend(resultPtr, share, slen);
- tail = &share[slen];
- /* Skip separators */
- while (tail[0] == '/' || tail[0] == '\') tail++;
- *typePtr = TCL_PATH_ABSOLUTE;
- return tail;
- } else if (*path && path[1] == ':') {
- /* Might be a drive sep */
- Tcl_DStringSetLength(resultPtr, offset);
- if (path[2] != '/' && path[2] != '\') {
- *typePtr = TCL_PATH_VOLUME_RELATIVE;
- Tcl_DStringAppend(resultPtr, path, 2);
- return &path[2];
- } else {
- char *tail = (char*)&path[3];
- /* Skip separators */
- while (*tail && (tail[0] == '/' || tail[0] == '\')) tail++;
- *typePtr = TCL_PATH_ABSOLUTE;
- Tcl_DStringAppend(resultPtr, path, 2);
- Tcl_DStringAppend(resultPtr, "/", 1);
- return tail;
- }
- } else {
- int abs = 0;
- if ((path[0] == 'c' || path[0] == 'C')
- && (path[1] == 'o' || path[1] == 'O')) {
- if ((path[2] == 'm' || path[2] == 'M')
- && path[3] >= '1' && path[3] <= '4') {
- /* May have match for 'com[1-4]:?', which is a serial port */
- if (path[4] == ' ') {
- abs = 4;
- } else if (path [4] == ':' && path[5] == ' ') {
- abs = 5;
- }
- } else if ((path[2] == 'n' || path[2] == 'N') && path[3] == ' ') {
- /* Have match for 'con' */
- abs = 3;
- }
- } else if ((path[0] == 'l' || path[0] == 'L')
- && (path[1] == 'p' || path[1] == 'P')
- && (path[2] == 't' || path[2] == 'T')) {
- if (path[3] >= '1' && path[3] <= '3') {
- /* May have match for 'lpt[1-3]:?' */
- if (path[4] == ' ') {
- abs = 4;
- } else if (path [4] == ':' && path[5] == ' ') {
- abs = 5;
- }
- }
- } else if ((path[0] == 'p' || path[0] == 'P')
- && (path[1] == 'r' || path[1] == 'R')
- && (path[2] == 'n' || path[2] == 'N')
- && path[3] == ' ') {
- /* Have match for 'prn' */
- abs = 3;
- } else if ((path[0] == 'n' || path[0] == 'N')
- && (path[1] == 'u' || path[1] == 'U')
- && (path[2] == 'l' || path[2] == 'L')
- && path[3] == ' ') {
- /* Have match for 'nul' */
- abs = 3;
- } else if ((path[0] == 'a' || path[0] == 'A')
- && (path[1] == 'u' || path[1] == 'U')
- && (path[2] == 'x' || path[2] == 'X')
- && path[3] == ' ') {
- /* Have match for 'aux' */
- abs = 3;
- }
- if (abs != 0) {
- *typePtr = TCL_PATH_ABSOLUTE;
- Tcl_DStringSetLength(resultPtr, offset);
- Tcl_DStringAppend(resultPtr, path, abs);
- return path + abs;
- }
- }
- /* Anything else is treated as relative */
- *typePtr = TCL_PATH_RELATIVE;
- return path;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetPathType --
- *
- * Determines whether a given path is relative to the current
- * directory, relative to the current volume, or absolute.
- *
- * The objectified Tcl_FSGetPathType should be used in
- * preference to this function (as you can see below, this
- * is just a wrapper around that other function).
- *
- * Results:
- * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
- * TCL_PATH_VOLUME_RELATIVE.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- Tcl_PathType
- Tcl_GetPathType(path)
- CONST char *path;
- {
- Tcl_PathType type;
- Tcl_Obj *tempObj = Tcl_NewStringObj(path,-1);
- Tcl_IncrRefCount(tempObj);
- type = Tcl_FSGetPathType(tempObj);
- Tcl_DecrRefCount(tempObj);
- return type;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TclpGetNativePathType --
- *
- * Determines whether a given path is relative to the current
- * directory, relative to the current volume, or absolute, but
- * ONLY FOR THE NATIVE FILESYSTEM. This function is called from
- * tclIOUtil.c (but needs to be here due to its dependence on
- * static variables/functions in this file). The exported
- * function Tcl_FSGetPathType should be used by extensions.
- *
- * Results:
- * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or
- * TCL_PATH_VOLUME_RELATIVE.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- Tcl_PathType
- TclpGetNativePathType(pathObjPtr, driveNameLengthPtr, driveNameRef)
- Tcl_Obj *pathObjPtr;
- int *driveNameLengthPtr;
- Tcl_Obj **driveNameRef;
- {
- Tcl_PathType type = TCL_PATH_ABSOLUTE;
- int pathLen;
- char *path = Tcl_GetStringFromObj(pathObjPtr, &pathLen);
-
- if (path[0] == '~') {
- /*
- * This case is common to all platforms.
- * Paths that begin with ~ are absolute.
- */
- if (driveNameLengthPtr != NULL) {
- char *end = path + 1;
- while ((*end != ' ') && (*end != '/')) {
- end++;
- }
- *driveNameLengthPtr = end - path;
- }
- } else {
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX: {
- char *origPath = path;
-
- /*
- * Paths that begin with / are absolute.
- */
- #ifdef __QNX__
- /*
- * Check for QNX //<node id> prefix
- */
- if (*path && (pathLen > 3) && (path[0] == '/')
- && (path[1] == '/') && isdigit(UCHAR(path[2]))) {
- path += 3;
- while (isdigit(UCHAR(*path))) {
- ++path;
- }
- }
- #endif
- if (path[0] == '/') {
- if (driveNameLengthPtr != NULL) {
- /*
- * We need this addition in case the QNX code
- * was used
- */
- *driveNameLengthPtr = (1 + path - origPath);
- }
- } else {
- type = TCL_PATH_RELATIVE;
- }
- break;
- }
- case TCL_PLATFORM_MAC:
- if (path[0] == ':') {
- type = TCL_PATH_RELATIVE;
- } else {
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- ThreadSpecificData *tsdPtr;
- Tcl_RegExp re;
- tsdPtr = TCL_TSD_INIT(&dataKey);
- /*
- * Since we have eliminated the easy cases, use the
- * root pattern to look for the other types.
- */
- FileNameInit();
- re = Tcl_GetRegExpFromObj(NULL, tsdPtr->macRootPatternPtr,
- REG_ADVANCED);
- if (!Tcl_RegExpExec(NULL, re, path, path)) {
- type = TCL_PATH_RELATIVE;
- } else {
- CONST char *root, *end;
- Tcl_RegExpRange(re, 2, &root, &end);
- if (root != NULL) {
- type = TCL_PATH_RELATIVE;
- } else {
- if (driveNameLengthPtr != NULL) {
- Tcl_RegExpRange(re, 0, &root, &end);
- *driveNameLengthPtr = end - root;
- }
- if (driveNameRef != NULL) {
- if (*root == '/') {
- char *c;
- int gotColon = 0;
- *driveNameRef = Tcl_NewStringObj(root + 1,
- end - root -1);
- c = Tcl_GetString(*driveNameRef);
- while (*c != ' ') {
- if (*c == '/') {
- gotColon++;
- *c = ':';
- }
- c++;
- }
- /*
- * If there is no colon, we have just a
- * volume name so we must add a colon so
- * it is an absolute path.
- */
- if (gotColon == 0) {
- Tcl_AppendToObj(*driveNameRef, ":", 1);
- } else if ((gotColon > 1) &&
- (*(c-1) == ':')) {
- /* We have an extra colon */
- Tcl_SetObjLength(*driveNameRef,
- c - Tcl_GetString(*driveNameRef) - 1);
- }
- }
- }
- }
- }
- #else
- if (path[0] == '~') {
- } else if (path[0] == ':') {
- type = TCL_PATH_RELATIVE;
- } else {
- char *colonPos = strchr(path,':');
- if (colonPos == NULL) {
- type = TCL_PATH_RELATIVE;
- } else {
- }
- }
- if (type == TCL_PATH_ABSOLUTE) {
- if (driveNameLengthPtr != NULL) {
- *driveNameLengthPtr = strlen(path);
- }
- }
- #endif
- }
- break;
-
- case TCL_PLATFORM_WINDOWS: {
- Tcl_DString ds;
- CONST char *rootEnd;
-
- Tcl_DStringInit(&ds);
- rootEnd = ExtractWinRoot(path, &ds, 0, &type);
- if ((rootEnd != path) && (driveNameLengthPtr != NULL)) {
- *driveNameLengthPtr = rootEnd - path;
- if (driveNameRef != NULL) {
- *driveNameRef = Tcl_NewStringObj(Tcl_DStringValue(&ds),
- Tcl_DStringLength(&ds));
- Tcl_IncrRefCount(*driveNameRef);
- }
- }
- Tcl_DStringFree(&ds);
- break;
- }
- }
- }
- return type;
- }
- /*
- *---------------------------------------------------------------------------
- *
- * TclpNativeSplitPath --
- *
- * This function takes the given Tcl_Obj, which should be a valid
- * path, and returns a Tcl List object containing each segment
- * of that path as an element.
- *
- * Note this function currently calls the older Split(Plat)Path
- * functions, which require more memory allocation than is
- * desirable.
- *
- * Results:
- * Returns list object with refCount of zero. If the passed in
- * lenPtr is non-NULL, we use it to return the number of elements
- * in the returned list.
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
- Tcl_Obj*
- TclpNativeSplitPath(pathPtr, lenPtr)
- Tcl_Obj *pathPtr; /* Path to split. */
- int *lenPtr; /* int to store number of path elements. */
- {
- Tcl_Obj *resultPtr = NULL; /* Needed only to prevent gcc warnings. */
- /*
- * Perform platform specific splitting.
- */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- resultPtr = SplitUnixPath(Tcl_GetString(pathPtr));
- break;
- case TCL_PLATFORM_WINDOWS:
- resultPtr = SplitWinPath(Tcl_GetString(pathPtr));
- break;
-
- case TCL_PLATFORM_MAC:
- resultPtr = SplitMacPath(Tcl_GetString(pathPtr));
- break;
- }
- /*
- * Compute the number of elements in the result.
- */
- if (lenPtr != NULL) {
- Tcl_ListObjLength(NULL, resultPtr, lenPtr);
- }
- return resultPtr;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_SplitPath --
- *
- * Split a path into a list of path components. The first element
- * of the list will have the same path type as the original path.
- *
- * Results:
- * Returns a standard Tcl result. The interpreter result contains
- * a list of path components.
- * *argvPtr will be filled in with the address of an array
- * whose elements point to the elements of path, in order.
- * *argcPtr will get filled in with the number of valid elements
- * in the array. A single block of memory is dynamically allocated
- * to hold both the argv array and a copy of the path elements.
- * The caller must eventually free this memory by calling ckfree()
- * on *argvPtr. Note: *argvPtr and *argcPtr are only modified
- * if the procedure returns normally.
- *
- * Side effects:
- * Allocates memory.
- *
- *----------------------------------------------------------------------
- */
- void
- Tcl_SplitPath(path, argcPtr, argvPtr)
- CONST char *path; /* Pointer to string containing a path. */
- int *argcPtr; /* Pointer to location to fill in with
- * the number of elements in the path. */
- CONST char ***argvPtr; /* Pointer to place to store pointer to array
- * of pointers to path elements. */
- {
- Tcl_Obj *resultPtr = NULL; /* Needed only to prevent gcc warnings. */
- Tcl_Obj *tmpPtr, *eltPtr;
- int i, size, len;
- char *p, *str;
- /*
- * Perform the splitting, using objectified, vfs-aware code.
- */
- tmpPtr = Tcl_NewStringObj(path, -1);
- Tcl_IncrRefCount(tmpPtr);
- resultPtr = Tcl_FSSplitPath(tmpPtr, argcPtr);
- Tcl_DecrRefCount(tmpPtr);
- /* Calculate space required for the result */
-
- size = 1;
- for (i = 0; i < *argcPtr; i++) {
- Tcl_ListObjIndex(NULL, resultPtr, i, &eltPtr);
- Tcl_GetStringFromObj(eltPtr, &len);
- size += len + 1;
- }
-
- /*
- * Allocate a buffer large enough to hold the contents of all of
- * the list plus the argv pointers and the terminating NULL pointer.
- */
- *argvPtr = (CONST char **) ckalloc((unsigned)
- ((((*argcPtr) + 1) * sizeof(char *)) + size));
- /*
- * Position p after the last argv pointer and copy the contents of
- * the list in, piece by piece.
- */
- p = (char *) &(*argvPtr)[(*argcPtr) + 1];
- for (i = 0; i < *argcPtr; i++) {
- Tcl_ListObjIndex(NULL, resultPtr, i, &eltPtr);
- str = Tcl_GetStringFromObj(eltPtr, &len);
- memcpy((VOID *) p, (VOID *) str, (size_t) len+1);
- p += len+1;
- }
-
- /*
- * Now set up the argv pointers.
- */
- p = (char *) &(*argvPtr)[(*argcPtr) + 1];
- for (i = 0; i < *argcPtr; i++) {
- (*argvPtr)[i] = p;
- while ((*p++) != ' ') {}
- }
- (*argvPtr)[i] = NULL;
- /*
- * Free the result ptr given to us by Tcl_FSSplitPath
- */
- Tcl_DecrRefCount(resultPtr);
- }
- /*
- *----------------------------------------------------------------------
- *
- * SplitUnixPath --
- *
- * This routine is used by Tcl_(FS)SplitPath to handle splitting
- * Unix paths.
- *
- * Results:
- * Returns a newly allocated Tcl list object.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- static Tcl_Obj*
- SplitUnixPath(path)
- CONST char *path; /* Pointer to string containing a path. */
- {
- int length;
- CONST char *p, *elementStart;
- Tcl_Obj *result = Tcl_NewObj();
- /*
- * Deal with the root directory as a special case.
- */
- #ifdef __QNX__
- /*
- * Check for QNX //<node id> prefix
- */
- if ((path[0] == '/') && (path[1] == '/')
- && isdigit(UCHAR(path[2]))) { /* INTL: digit */
- path += 3;
- while (isdigit(UCHAR(*path))) { /* INTL: digit */
- ++path;
- }
- }
- #endif
- if (path[0] == '/') {
- Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj("/",1));
- p = path+1;
- } else {
- p = path;
- }
- /*
- * Split on slashes. Embedded elements that start with tilde will be
- * prefixed with "./" so they are not affected by tilde substitution.
- */
- for (;;) {
- elementStart = p;
- while ((*p != ' ') && (*p != '/')) {
- p++;
- }
- length = p - elementStart;
- if (length > 0) {
- Tcl_Obj *nextElt;
- if ((elementStart[0] == '~') && (elementStart != path)) {
- nextElt = Tcl_NewStringObj("./",2);
- Tcl_AppendToObj(nextElt, elementStart, length);
- } else {
- nextElt = Tcl_NewStringObj(elementStart, length);
- }
- Tcl_ListObjAppendElement(NULL, result, nextElt);
- }
- if (*p++ == ' ') {
- break;
- }
- }
- return result;
- }
- /*
- *----------------------------------------------------------------------
- *
- * SplitWinPath --
- *
- * This routine is used by Tcl_(FS)SplitPath to handle splitting
- * Windows paths.
- *
- * Results:
- * Returns a newly allocated Tcl list object.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- static Tcl_Obj*
- SplitWinPath(path)
- CONST char *path; /* Pointer to string containing a path. */
- {
- int length;
- CONST char *p, *elementStart;
- Tcl_PathType type = TCL_PATH_ABSOLUTE;
- Tcl_DString buf;
- Tcl_Obj *result = Tcl_NewObj();
- Tcl_DStringInit(&buf);
-
- p = ExtractWinRoot(path, &buf, 0, &type);
- /*
- * Terminate the root portion, if we matched something.
- */
- if (p != path) {
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj(Tcl_DStringValue(&buf),
- Tcl_DStringLength(&buf)));
- }
- Tcl_DStringFree(&buf);
-
- /*
- * Split on slashes. Embedded elements that start with tilde
- * or a drive letter will be prefixed with "./" so they are not
- * affected by tilde substitution.
- */
- do {
- elementStart = p;
- while ((*p != ' ') && (*p != '/') && (*p != '\')) {
- p++;
- }
- length = p - elementStart;
- if (length > 0) {
- Tcl_Obj *nextElt;
- if ((elementStart != path)
- && ((elementStart[0] == '~')
- || (isalpha(UCHAR(elementStart[0]))
- && elementStart[1] == ':'))) {
- nextElt = Tcl_NewStringObj("./",2);
- Tcl_AppendToObj(nextElt, elementStart, length);
- } else {
- nextElt = Tcl_NewStringObj(elementStart, length);
- }
- Tcl_ListObjAppendElement(NULL, result, nextElt);
- }
- } while (*p++ != ' ');
- return result;
- }
- /*
- *----------------------------------------------------------------------
- *
- * SplitMacPath --
- *
- * This routine is used by Tcl_(FS)SplitPath to handle splitting
- * Macintosh paths.
- *
- * Results:
- * Returns a newly allocated Tcl list object.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- static Tcl_Obj*
- SplitMacPath(path)
- CONST char *path; /* Pointer to string containing a path. */
- {
- int isMac = 0; /* 1 if is Mac-style, 0 if Unix-style path. */
- int length;
- CONST char *p, *elementStart;
- Tcl_Obj *result;
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- Tcl_RegExp re;
- int i;
- ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
- #endif
-
- result = Tcl_NewObj();
-
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- /*
- * Initialize the path name parser for Macintosh path names.
- */
- FileNameInit();
- /*
- * Match the root portion of a Mac path name.
- */
- i = 0; /* Needed only to prevent gcc warnings. */
- re = Tcl_GetRegExpFromObj(NULL, tsdPtr->macRootPatternPtr, REG_ADVANCED);
- if (Tcl_RegExpExec(NULL, re, path, path) == 1) {
- CONST char *start, *end;
- Tcl_Obj *nextElt;
- /*
- * Treat degenerate absolute paths like / and /../.. as
- * Mac relative file names for lack of anything else to do.
- */
- Tcl_RegExpRange(re, 2, &start, &end);
- if (start) {
- Tcl_Obj *elt = Tcl_NewStringObj(":", 1);
- Tcl_RegExpRange(re, 0, &start, &end);
- Tcl_AppendToObj(elt, path, end - start);
- Tcl_ListObjAppendElement(NULL, result, elt);
- return result;
- }
- Tcl_RegExpRange(re, 5, &start, &end);
- if (start) {
- /*
- * Unix-style tilde prefixed paths.
- */
- isMac = 0;
- i = 5;
- } else {
- Tcl_RegExpRange(re, 7, &start, &end);
- if (start) {
- /*
- * Mac-style tilde prefixed paths.
- */
- isMac = 1;
- i = 7;
- } else {
- Tcl_RegExpRange(re, 10, &start, &end);
- if (start) {
- /*
- * Normal Unix style paths.
- */
- isMac = 0;
- i = 10;
- } else {
- Tcl_RegExpRange(re, 12, &start, &end);
- if (start) {
- /*
- * Normal Mac style paths.
- */
- isMac = 1;
- i = 12;
- }
- }
- }
- }
- Tcl_RegExpRange(re, i, &start, &end);
- length = end - start;
- /*
- * Append the element and terminate it with a :
- */
- nextElt = Tcl_NewStringObj(start, length);
- Tcl_AppendToObj(nextElt, ":", 1);
- Tcl_ListObjAppendElement(NULL, result, nextElt);
- p = end;
- } else {
- isMac = (strchr(path, ':') != NULL);
- p = path;
- }
- #else
- if ((path[0] != ':') && (path[0] == '~' || (strchr(path,':') != NULL))) {
- CONST char *end;
- Tcl_Obj *nextElt;
- isMac = 1;
-
- end = strchr(path,':');
- if (end == NULL) {
- length = strlen(path);
- } else {
- length = end - path;
- }
- /*
- * Append the element and terminate it with a :
- */
- nextElt = Tcl_NewStringObj(path, length);
- Tcl_AppendToObj(nextElt, ":", 1);
- Tcl_ListObjAppendElement(NULL, result, nextElt);
- p = path + length;
- } else {
- isMac = (strchr(path, ':') != NULL);
- isMac = 1;
- p = path;
- }
- #endif
-
- if (isMac) {
- /*
- * p is pointing at the first colon in the path. There
- * will always be one, since this is a Mac-style path.
- * (This is no longer true if MAC_UNDERSTANDS_UNIX_PATHS
- * is false, so we must check whether 'p' points to the
- * end of the string.)
- */
- elementStart = p;
- if (*p == ':') {
- p++;
- }
-
- while ((p = strchr(p, ':')) != NULL) {
- length = p - elementStart;
- if (length == 1) {
- while (*p == ':') {
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj("::", 2));
- elementStart = p++;
- }
- } else {
- /*
- * If this is a simple component, drop the leading colon.
- */
- if ((elementStart[1] != '~')
- && (strchr(elementStart+1, '/') == NULL)) {
- elementStart++;
- length--;
- }
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj(elementStart, length));
- elementStart = p++;
- }
- }
- if (elementStart[0] != ':') {
- if (elementStart[0] != ' ') {
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj(elementStart, -1));
- }
- } else {
- if (elementStart[1] != ' ' || elementStart == path) {
- if ((elementStart[1] != '~') && (elementStart[1] != ' ')
- && (strchr(elementStart+1, '/') == NULL)) {
- elementStart++;
- }
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj(elementStart, -1));
- }
- }
- } else {
- /*
- * Split on slashes, suppress extra /'s, and convert .. to ::.
- */
- for (;;) {
- elementStart = p;
- while ((*p != ' ') && (*p != '/')) {
- p++;
- }
- length = p - elementStart;
- if (length > 0) {
- if ((length == 1) && (elementStart[0] == '.')) {
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj(":", 1));
- } else if ((length == 2) && (elementStart[0] == '.')
- && (elementStart[1] == '.')) {
- Tcl_ListObjAppendElement(NULL, result,
- Tcl_NewStringObj("::", 2));
- } else {
- Tcl_Obj *nextElt;
- if (*elementStart == '~') {
- nextElt = Tcl_NewStringObj(":",1);
- Tcl_AppendToObj(nextElt, elementStart, length);
- } else {
- nextElt = Tcl_NewStringObj(elementStart, length);
- }
- Tcl_ListObjAppendElement(NULL, result, nextElt);
- }
- }
- if (*p++ == ' ') {
- break;
- }
- }
- }
- return result;
- }
- /*
- *---------------------------------------------------------------------------
- *
- * Tcl_FSJoinToPath --
- *
- * This function takes the given object, which should usually be a
- * valid path or NULL, and joins onto it the array of paths
- * segments given.
- *
- * Results:
- * Returns object with refCount of zero
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
- Tcl_Obj*
- Tcl_FSJoinToPath(basePtr, objc, objv)
- Tcl_Obj *basePtr;
- int objc;
- Tcl_Obj *CONST objv[];
- {
- int i;
- Tcl_Obj *lobj, *ret;
- if (basePtr == NULL) {
- lobj = Tcl_NewListObj(0, NULL);
- } else {
- lobj = Tcl_NewListObj(1, &basePtr);
- }
-
- for (i = 0; i<objc;i++) {
- Tcl_ListObjAppendElement(NULL, lobj, objv[i]);
- }
- ret = Tcl_FSJoinPath(lobj, -1);
- Tcl_DecrRefCount(lobj);
- return ret;
- }
- /*
- *---------------------------------------------------------------------------
- *
- * TclpNativeJoinPath --
- *
- * 'prefix' is absolute, 'joining' is relative to prefix.
- *
- * Results:
- * modifies prefix
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
- void
- TclpNativeJoinPath(prefix, joining)
- Tcl_Obj *prefix;
- char* joining;
- {
- int length, needsSep;
- char *dest, *p, *start;
-
- start = Tcl_GetStringFromObj(prefix, &length);
- /*
- * Remove the ./ from tilde prefixed elements, and drive-letter
- * prefixed elements on Windows, unless it is the first component.
- */
-
- p = joining;
-
- if (length != 0) {
- if ((p[0] == '.') && (p[1] == '/')
- && ((p[2] == '~')
- || ((tclPlatform == TCL_PLATFORM_WINDOWS)
- && isalpha(UCHAR(p[2]))
- && (p[3] == ':')))) {
- p += 2;
- }
- }
- if (*p == ' ') {
- return;
- }
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- /*
- * Append a separator if needed.
- */
- if (length > 0 && (start[length-1] != '/')) {
- Tcl_AppendToObj(prefix, "/", 1);
- length++;
- }
- needsSep = 0;
-
- /*
- * Append the element, eliminating duplicate and trailing
- * slashes.
- */
- Tcl_SetObjLength(prefix, length + (int) strlen(p));
-
- dest = Tcl_GetString(prefix) + length;
- for (; *p != ' '; p++) {
- if (*p == '/') {
- while (p[1] == '/') {
- p++;
- }
- if (p[1] != ' ') {
- if (needsSep) {
- *dest++ = '/';
- }
- }
- } else {
- *dest++ = *p;
- needsSep = 1;
- }
- }
- length = dest - Tcl_GetString(prefix);
- Tcl_SetObjLength(prefix, length);
- break;
- case TCL_PLATFORM_WINDOWS:
- /*
- * Check to see if we need to append a separator.
- */
- if ((length > 0) &&
- (start[length-1] != '/') && (start[length-1] != ':')) {
- Tcl_AppendToObj(prefix, "/", 1);
- length++;
- }
- needsSep = 0;
-
- /*
- * Append the element, eliminating duplicate and
- * trailing slashes.
- */
- Tcl_SetObjLength(prefix, length + (int) strlen(p));
- dest = Tcl_GetString(prefix) + length;
- for (; *p != ' '; p++) {
- if ((*p == '/') || (*p == '\')) {
- while ((p[1] == '/') || (p[1] == '\')) {
- p++;
- }
- if ((p[1] != ' ') && needsSep) {
- *dest++ = '/';
- }
- } else {
- *dest++ = *p;
- needsSep = 1;
- }
- }
- length = dest - Tcl_GetString(prefix);
- Tcl_SetObjLength(prefix, length);
- break;
- case TCL_PLATFORM_MAC: {
- int newLength;
-
- /*
- * Sort out separators. We basically add the object we've
- * been given, but we have to make sure that there is
- * exactly one separator inbetween (unless the object we're
- * adding contains multiple contiguous colons, all of which
- * we must add). Also if an object is just ':' we don't
- * bother to add it unless it's the very first element.
- */
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- int adjustedPath = 0;
- if ((strchr(p, ':') == NULL) && (strchr(p, '/') != NULL)) {
- char *start = p;
- adjustedPath = 1;
- while (*start != ' ') {
- if (*start == '/') {
- *start = ':';
- }
- start++;
- }
- }
- #endif
- if (length > 0) {
- if ((p[0] == ':') && (p[1] == ' ')) {
- return;
- }
- if (start[length-1] != ':') {
- if (*p != ' ' && *p != ':') {
- Tcl_AppendToObj(prefix, ":", 1);
- length++;
- }
- } else if (*p == ':') {
- p++;
- }
- } else {
- if (*p != ' ' && *p != ':') {
- Tcl_AppendToObj(prefix, ":", 1);
- length++;
- }
- }
-
- /*
- * Append the element
- */
- newLength = strlen(p);
- /*
- * It may not be good to just do 'Tcl_AppendToObj(prefix,
- * p, newLength)' because the object may contain duplicate
- * colons which we want to get rid of.
- */
- Tcl_AppendToObj(prefix, p, newLength);
-
- /* Remove spurious trailing single ':' */
- dest = Tcl_GetString(prefix) + length + newLength;
- if (*(dest-1) == ':') {
- if (dest-1 > Tcl_GetString(prefix)) {
- if (*(dest-2) != ':') {
- Tcl_SetObjLength(prefix, length + newLength -1);
- }
- }
- }
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- /* Revert the path to what it was */
- if (adjustedPath) {
- char *start = joining;
- while (*start != ' ') {
- if (*start == ':') {
- *start = '/';
- }
- start++;
- }
- }
- #endif
- break;
- }
- }
- return;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_JoinPath --
- *
- * Combine a list of paths in a platform specific manner. The
- * function 'Tcl_FSJoinPath' should be used in preference where
- * possible.
- *
- * Results:
- * Appends the joined path to the end of the specified
- * Tcl_DString returning a pointer to the resulting string. Note
- * that the Tcl_DString must already be initialized.
- *
- * Side effects:
- * Modifies the Tcl_DString.
- *
- *----------------------------------------------------------------------
- */
- char *
- Tcl_JoinPath(argc, argv, resultPtr)
- int argc;
- CONST char * CONST *argv;
- Tcl_DString *resultPtr; /* Pointer to previously initialized DString */
- {
- int i, len;
- Tcl_Obj *listObj = Tcl_NewObj();
- Tcl_Obj *resultObj;
- char *resultStr;
- /* Build the list of paths */
- for (i = 0; i < argc; i++) {
- Tcl_ListObjAppendElement(NULL, listObj,
- Tcl_NewStringObj(argv[i], -1));
- }
- /* Ask the objectified code to join the paths */
- Tcl_IncrRefCount(listObj);
- resultObj = Tcl_FSJoinPath(listObj, argc);
- Tcl_IncrRefCount(resultObj);
- Tcl_DecrRefCount(listObj);
- /* Store the result */
- resultStr = Tcl_GetStringFromObj(resultObj, &len);
- Tcl_DStringAppend(resultPtr, resultStr, len);
- Tcl_DecrRefCount(resultObj);
- /* Return a pointer to the result */
- return Tcl_DStringValue(resultPtr);
- }
- /*
- *---------------------------------------------------------------------------
- *
- * Tcl_TranslateFileName --
- *
- * Converts a file name into a form usable by the native system
- * interfaces. If the name starts with a tilde, it will produce a
- * name where the tilde and following characters have been replaced
- * by the home directory location for the named user.
- *
- * Results:
- * The return value is a pointer to a string containing the name
- * after tilde substitution. If there was no tilde substitution,
- * the return value is a pointer to a copy of the original string.
- * If there was an error in processing the name, then an error
- * message is left in the interp's result (if interp was not NULL)
- * and the return value is NULL. Space for the return value is
- * allocated in bufferPtr; the caller must call Tcl_DStringFree()
- * to free the space if the return value was not NULL.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- char *
- Tcl_TranslateFileName(interp, name, bufferPtr)
- Tcl_Interp *interp; /* Interpreter in which to store error
- * message (if necessary). */
- CONST char *name; /* File name, which may begin with "~" (to
- * indicate current user's home directory) or
- * "~<user>" (to indicate any user's home
- * directory). */
- Tcl_DString *bufferPtr; /* Uninitialized or free DString filled
- * with name after tilde substitution. */
- {
- Tcl_Obj *path = Tcl_NewStringObj(name, -1);
- Tcl_Obj *transPtr;
- Tcl_IncrRefCount(path);
- transPtr = Tcl_FSGetTranslatedPath(interp, path);
- if (transPtr == NULL) {
- Tcl_DecrRefCount(path);
- return NULL;
- }
-
- Tcl_DStringInit(bufferPtr);
- Tcl_DStringAppend(bufferPtr, Tcl_GetString(transPtr), -1);
- Tcl_DecrRefCount(path);
- Tcl_DecrRefCount(transPtr);
-
- /*
- * Convert forward slashes to backslashes in Windows paths because
- * some system interfaces don't accept forward slashes.
- */
- if (tclPlatform == TCL_PLATFORM_WINDOWS) {
- register char *p;
- for (p = Tcl_DStringValue(bufferPtr); *p != ' '; p++) {
- if (*p == '/') {
- *p = '\';
- }
- }
- }
- return Tcl_DStringValue(bufferPtr);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TclGetExtension --
- *
- * This function returns a pointer to the beginning of the
- * extension part of a file name.
- *
- * Results:
- * Returns a pointer into name which indicates where the extension
- * starts. If there is no extension, returns NULL.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- char *
- TclGetExtension(name)
- char *name; /* File name to parse. */
- {
- char *p, *lastSep;
- /*
- * First find the last directory separator.
- */
- lastSep = NULL; /* Needed only to prevent gcc warnings. */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- lastSep = strrchr(name, '/');
- break;
- case TCL_PLATFORM_MAC:
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- if (strchr(name, ':') == NULL) {
- lastSep = strrchr(name, '/');
- } else {
- lastSep = strrchr(name, ':');
- }
- #else
- lastSep = strrchr(name, ':');
- #endif
- break;
- case TCL_PLATFORM_WINDOWS:
- lastSep = NULL;
- for (p = name; *p != ' '; p++) {
- if (strchr("/\:", *p) != NULL) {
- lastSep = p;
- }
- }
- break;
- }
- p = strrchr(name, '.');
- if ((p != NULL) && (lastSep != NULL) && (lastSep > p)) {
- p = NULL;
- }
- /*
- * In earlier versions, we used to back up to the first period in a series
- * so that "foo..o" would be split into "foo" and "..o". This is a
- * confusing and usually incorrect behavior, so now we split at the last
- * period in the name.
- */
- return p;
- }
- /*
- *----------------------------------------------------------------------
- *
- * DoTildeSubst --
- *
- * Given a string following a tilde, this routine returns the
- * corresponding home directory.
- *
- * Results:
- * The result is a pointer to a static string containing the home
- * directory in native format. If there was an error in processing
- * the substitution, then an error message is left in the interp's
- * result and the return value is NULL. On success, the results
- * are appended to resultPtr, and the contents of resultPtr are
- * returned.
- *
- * Side effects:
- * Information may be left in resultPtr.
- *
- *----------------------------------------------------------------------
- */
- static CONST char *
- DoTildeSubst(interp, user, resultPtr)
- Tcl_Interp *interp; /* Interpreter in which to store error
- * message (if necessary). */
- CONST char *user; /* Name of user whose home directory should be
- * substituted, or "" for current user. */
- Tcl_DString *resultPtr; /* Initialized DString filled with name
- * after tilde substitution. */
- {
- CONST char *dir;
- if (*user == ' ') {
- Tcl_DString dirString;
-
- dir = TclGetEnv("HOME", &dirString);
- if (dir == NULL) {
- if (interp) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't find HOME environment ",
- "variable to expand path", (char *) NULL);
- }
- return NULL;
- }
- Tcl_JoinPath(1, &dir, resultPtr);
- Tcl_DStringFree(&dirString);
- } else {
- if (TclpGetUserHome(user, resultPtr) == NULL) {
- if (interp) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "user "", user, "" doesn't exist",
- (char *) NULL);
- }
- return NULL;
- }
- }
- return Tcl_DStringValue(resultPtr);
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GlobObjCmd --
- *
- * This procedure is invoked to process the "glob" Tcl command.
- * See the user documentation for details on what it does.
- *
- * Results:
- * A standard Tcl result.
- *
- * Side effects:
- * See the user documentation.
- *
- *----------------------------------------------------------------------
- */
- /* ARGSUSED */
- int
- Tcl_GlobObjCmd(dummy, interp, objc, objv)
- ClientData dummy; /* Not used. */
- Tcl_Interp *interp; /* Current interpreter. */
- int objc; /* Number of arguments. */
- Tcl_Obj *CONST objv[]; /* Argument objects. */
- {
- int index, i, globFlags, length, join, dir, result;
- char *string, *separators;
- Tcl_Obj *typePtr, *resultPtr, *look;
- Tcl_Obj *pathOrDir = NULL;
- Tcl_DString prefix;
- static CONST char *options[] = {
- "-directory", "-join", "-nocomplain", "-path", "-tails",
- "-types", "--", NULL
- };
- enum options {
- GLOB_DIR, GLOB_JOIN, GLOB_NOCOMPLAIN, GLOB_PATH, GLOB_TAILS,
- GLOB_TYPE, GLOB_LAST
- };
- enum pathDirOptions {PATH_NONE = -1 , PATH_GENERAL = 0, PATH_DIR = 1};
- Tcl_GlobTypeData *globTypes = NULL;
- globFlags = 0;
- join = 0;
- dir = PATH_NONE;
- typePtr = NULL;
- for (i = 1; i < objc; i++) {
- if (Tcl_GetIndexFromObj(interp, objv[i], options, "option", 0, &index)
- != TCL_OK) {
- string = Tcl_GetStringFromObj(objv[i], &length);
- if (string[0] == '-') {
- /*
- * It looks like the command contains an option so signal
- * an error
- */
- return TCL_ERROR;
- } else {
- /*
- * This clearly isn't an option; assume it's the first
- * glob pattern. We must clear the error
- */
- Tcl_ResetResult(interp);
- break;
- }
- }
- switch (index) {
- case GLOB_NOCOMPLAIN: /* -nocomplain */
- globFlags |= TCL_GLOBMODE_NO_COMPLAIN;
- break;
- case GLOB_DIR: /* -dir */
- if (i == (objc-1)) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "missing argument to "-directory"", -1));
- return TCL_ERROR;
- }
- if (dir != PATH_NONE) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- ""-directory" cannot be used with "-path"",
- -1));
- return TCL_ERROR;
- }
- dir = PATH_DIR;
- globFlags |= TCL_GLOBMODE_DIR;
- pathOrDir = objv[i+1];
- i++;
- break;
- case GLOB_JOIN: /* -join */
- join = 1;
- break;
- case GLOB_TAILS: /* -tails */
- globFlags |= TCL_GLOBMODE_TAILS;
- break;
- case GLOB_PATH: /* -path */
- if (i == (objc-1)) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "missing argument to "-path"", -1));
- return TCL_ERROR;
- }
- if (dir != PATH_NONE) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- ""-path" cannot be used with "-directory"",
- -1));
- return TCL_ERROR;
- }
- dir = PATH_GENERAL;
- pathOrDir = objv[i+1];
- i++;
- break;
- case GLOB_TYPE: /* -types */
- if (i == (objc-1)) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "missing argument to "-types"", -1));
- return TCL_ERROR;
- }
- typePtr = objv[i+1];
- if (Tcl_ListObjLength(interp, typePtr, &length) != TCL_OK) {
- return TCL_ERROR;
- }
- i++;
- break;
- case GLOB_LAST: /* -- */
- i++;
- goto endOfForLoop;
- }
- }
- endOfForLoop:
- if (objc - i < 1) {
- Tcl_WrongNumArgs(interp, 1, objv, "?switches? name ?name ...?");
- return TCL_ERROR;
- }
- if ((globFlags & TCL_GLOBMODE_TAILS) && (pathOrDir == NULL)) {
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- ""-tails" must be used with either "-directory" or "-path"",
- -1));
- return TCL_ERROR;
- }
-
- separators = NULL; /* lint. */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- separators = "/";
- break;
- case TCL_PLATFORM_WINDOWS:
- separators = "/\:";
- break;
- case TCL_PLATFORM_MAC:
- separators = ":";
- break;
- }
- if (dir == PATH_GENERAL) {
- int pathlength;
- char *last;
- char *first = Tcl_GetStringFromObj(pathOrDir,&pathlength);
- /*
- * Find the last path separator in the path
- */
- last = first + pathlength;
- for (; last != first; last--) {
- if (strchr(separators, *(last-1)) != NULL) {
- break;
- }
- }
- if (last == first + pathlength) {
- /* It's really a directory */
- dir = PATH_DIR;
- } else {
- Tcl_DString pref;
- char *search, *find;
- Tcl_DStringInit(&pref);
- if (last == first) {
- /* The whole thing is a prefix */
- Tcl_DStringAppend(&pref, first, -1);
- pathOrDir = NULL;
- } else {
- /* Have to split off the end */
- Tcl_DStringAppend(&pref, last, first+pathlength-last);
- pathOrDir = Tcl_NewStringObj(first, last-first-1);
- /*
- * We must ensure that we haven't cut off too much,
- * and turned a valid path like '/' or 'C:/' into
- * an incorrect path like '' or 'C:'. The way we
- * do this is to add a separator if there are none
- * presently in the prefix.
- */
- if (strpbrk(Tcl_GetString(pathOrDir), "\/") == NULL) {
- Tcl_AppendToObj(pathOrDir, last-1, 1);
- }
- }
- /* Need to quote 'prefix' */
- Tcl_DStringInit(&prefix);
- search = Tcl_DStringValue(&pref);
- while ((find = (strpbrk(search, "\[]*?{}"))) != NULL) {
- Tcl_DStringAppend(&prefix, search, find-search);
- Tcl_DStringAppend(&prefix, "\", 1);
- Tcl_DStringAppend(&prefix, find, 1);
- search = find+1;
- if (*search == ' ') {
- break;
- }
- }
- if (*search != ' ') {
- Tcl_DStringAppend(&prefix, search, -1);
- }
- Tcl_DStringFree(&pref);
- }
- }
-
- if (pathOrDir != NULL) {
- Tcl_IncrRefCount(pathOrDir);
- }
-
- if (typePtr != NULL) {
- /*
- * The rest of the possible type arguments (except 'd') are
- * platform specific. We don't complain when they are used
- * on an incompatible platform.
- */
- Tcl_ListObjLength(interp, typePtr, &length);
- globTypes = (Tcl_GlobTypeData*) ckalloc(sizeof(Tcl_GlobTypeData));
- globTypes->type = 0;
- globTypes->perm = 0;
- globTypes->macType = NULL;
- globTypes->macCreator = NULL;
- while(--length >= 0) {
- int len;
- char *str;
- Tcl_ListObjIndex(interp, typePtr, length, &look);
- str = Tcl_GetStringFromObj(look, &len);
- if (strcmp("readonly", str) == 0) {
- globTypes->perm |= TCL_GLOB_PERM_RONLY;
- } else if (strcmp("hidden", str) == 0) {
- globTypes->perm |= TCL_GLOB_PERM_HIDDEN;
- } else if (len == 1) {
- switch (str[0]) {
- case 'r':
- globTypes->perm |= TCL_GLOB_PERM_R;
- break;
- case 'w':
- globTypes->perm |= TCL_GLOB_PERM_W;
- break;
- case 'x':
- globTypes->perm |= TCL_GLOB_PERM_X;
- break;
- case 'b':
- globTypes->type |= TCL_GLOB_TYPE_BLOCK;
- break;
- case 'c':
- globTypes->type |= TCL_GLOB_TYPE_CHAR;
- break;
- case 'd':
- globTypes->type |= TCL_GLOB_TYPE_DIR;
- break;
- case 'p':
- globTypes->type |= TCL_GLOB_TYPE_PIPE;
- break;
- case 'f':
- globTypes->type |= TCL_GLOB_TYPE_FILE;
- break;
- case 'l':
- globTypes->type |= TCL_GLOB_TYPE_LINK;
- break;
- case 's':
- globTypes->type |= TCL_GLOB_TYPE_SOCK;
- break;
- default:
- goto badTypesArg;
- }
- } else if (len == 4) {
- /* This is assumed to be a MacOS file type */
- if (globTypes->macType != NULL) {
- goto badMacTypesArg;
- }
- globTypes->macType = look;
- Tcl_IncrRefCount(look);
- } else {
- Tcl_Obj* item;
- if ((Tcl_ListObjLength(NULL, look, &len) == TCL_OK) &&
- (len == 3)) {
- Tcl_ListObjIndex(interp, look, 0, &item);
- if (!strcmp("macintosh", Tcl_GetString(item))) {
- Tcl_ListObjIndex(interp, look, 1, &item);
- if (!strcmp("type", Tcl_GetString(item))) {
- Tcl_ListObjIndex(interp, look, 2, &item);
- if (globTypes->macType != NULL) {
- goto badMacTypesArg;
- }
- globTypes->macType = item;
- Tcl_IncrRefCount(item);
- continue;
- } else if (!strcmp("creator", Tcl_GetString(item))) {
- Tcl_ListObjIndex(interp, look, 2, &item);
- if (globTypes->macCreator != NULL) {
- goto badMacTypesArg;
- }
- globTypes->macCreator = item;
- Tcl_IncrRefCount(item);
- continue;
- }
- }
- }
- /*
- * Error cases. We reset
- * the 'join' flag to zero, since we haven't yet
- * made use of it.
- */
- badTypesArg:
- resultPtr = Tcl_GetObjResult(interp);
- Tcl_AppendToObj(resultPtr, "bad argument to "-types": ", -1);
- Tcl_AppendObjToObj(resultPtr, look);
- result = TCL_ERROR;
- join = 0;
- goto endOfGlob;
- badMacTypesArg:
- Tcl_SetObjResult(interp, Tcl_NewStringObj(
- "only one MacOS type or creator argument"
- " to "-types" allowed", -1));
- result = TCL_ERROR;
- join = 0;
- goto endOfGlob;
- }
- }
- }
- /*
- * Now we perform the actual glob below. This may involve joining
- * together the pattern arguments, dealing with particular file types
- * etc. We use a 'goto' to ensure we free any memory allocated along
- * the way.
- */
- objc -= i;
- objv += i;
- result = TCL_OK;
- if (join) {
- if (dir != PATH_GENERAL) {
- Tcl_DStringInit(&prefix);
- }
- for (i = 0; i < objc; i++) {
- string = Tcl_GetStringFromObj(objv[i], &length);
- Tcl_DStringAppend(&prefix, string, length);
- if (i != objc -1) {
- Tcl_DStringAppend(&prefix, separators, 1);
- }
- }
- if (TclGlob(interp, Tcl_DStringValue(&prefix), pathOrDir,
- globFlags, globTypes) != TCL_OK) {
- result = TCL_ERROR;
- goto endOfGlob;
- }
- } else {
- if (dir == PATH_GENERAL) {
- Tcl_DString str;
- for (i = 0; i < objc; i++) {
- Tcl_DStringInit(&str);
- if (dir == PATH_GENERAL) {
- Tcl_DStringAppend(&str, Tcl_DStringValue(&prefix),
- Tcl_DStringLength(&prefix));
- }
- string = Tcl_GetStringFromObj(objv[i], &length);
- Tcl_DStringAppend(&str, string, length);
- if (TclGlob(interp, Tcl_DStringValue(&str), pathOrDir,
- globFlags, globTypes) != TCL_OK) {
- result = TCL_ERROR;
- Tcl_DStringFree(&str);
- goto endOfGlob;
- }
- }
- Tcl_DStringFree(&str);
- } else {
- for (i = 0; i < objc; i++) {
- string = Tcl_GetString(objv[i]);
- if (TclGlob(interp, string, pathOrDir,
- globFlags, globTypes) != TCL_OK) {
- result = TCL_ERROR;
- goto endOfGlob;
- }
- }
- }
- }
- if ((globFlags & TCL_GLOBMODE_NO_COMPLAIN) == 0) {
- if (Tcl_ListObjLength(interp, Tcl_GetObjResult(interp),
- &length) != TCL_OK) {
- /* This should never happen. Maybe we should be more dramatic */
- result = TCL_ERROR;
- goto endOfGlob;
- }
- if (length == 0) {
- Tcl_AppendResult(interp, "no files matched glob pattern",
- (join || (objc == 1)) ? " "" : "s "", (char *) NULL);
- if (join) {
- Tcl_AppendResult(interp, Tcl_DStringValue(&prefix),
- (char *) NULL);
- } else {
- char *sep = "";
- for (i = 0; i < objc; i++) {
- string = Tcl_GetString(objv[i]);
- Tcl_AppendResult(interp, sep, string, (char *) NULL);
- sep = " ";
- }
- }
- Tcl_AppendResult(interp, """, (char *) NULL);
- result = TCL_ERROR;
- }
- }
- endOfGlob:
- if (join || (dir == PATH_GENERAL)) {
- Tcl_DStringFree(&prefix);
- }
- if (pathOrDir != NULL) {
- Tcl_DecrRefCount(pathOrDir);
- }
- if (globTypes != NULL) {
- if (globTypes->macType != NULL) {
- Tcl_DecrRefCount(globTypes->macType);
- }
- if (globTypes->macCreator != NULL) {
- Tcl_DecrRefCount(globTypes->macCreator);
- }
- ckfree((char *) globTypes);
- }
- return result;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TclGlob --
- *
- * This procedure prepares arguments for the TclDoGlob call.
- * It sets the separator string based on the platform, performs
- * tilde substitution, and calls TclDoGlob.
- *
- * The interpreter's result, on entry to this function, must
- * be a valid Tcl list (e.g. it could be empty), since we will
- * lappend any new results to that list. If it is not a valid
- * list, this function will fail to do anything very meaningful.
- *
- * Results:
- * The return value is a standard Tcl result indicating whether
- * an error occurred in globbing. After a normal return the
- * result in interp (set by TclDoGlob) holds all of the file names
- * given by the pattern and unquotedPrefix arguments. After an
- * error the result in interp will hold an error message, unless
- * the 'TCL_GLOBMODE_NO_COMPLAIN' flag was given, in which case
- * an error results in a TCL_OK return leaving the interpreter's
- * result unmodified.
- *
- * Side effects:
- * The 'pattern' is written to.
- *
- *----------------------------------------------------------------------
- */
- /* ARGSUSED */
- int
- TclGlob(interp, pattern, unquotedPrefix, globFlags, types)
- Tcl_Interp *interp; /* Interpreter for returning error message
- * or appending list of matching file names. */
- char *pattern; /* Glob pattern to match. Must not refer
- * to a static string. */
- Tcl_Obj *unquotedPrefix; /* Prefix to glob pattern, if non-null, which
- * is considered literally. */
- int globFlags; /* Stores or'ed combination of flags */
- Tcl_GlobTypeData *types; /* Struct containing acceptable types.
- * May be NULL. */
- {
- char *separators;
- CONST char *head;
- char *tail, *start;
- char c;
- int result, prefixLen;
- Tcl_DString buffer;
- Tcl_Obj *oldResult;
- separators = NULL; /* lint. */
- switch (tclPlatform) {
- case TCL_PLATFORM_UNIX:
- separators = "/";
- break;
- case TCL_PLATFORM_WINDOWS:
- separators = "/\:";
- break;
- case TCL_PLATFORM_MAC:
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- if (unquotedPrefix == NULL) {
- separators = (strchr(pattern, ':') == NULL) ? "/" : ":";
- } else {
- separators = ":";
- }
- #else
- separators = ":";
- #endif
- break;
- }
- Tcl_DStringInit(&buffer);
- if (unquotedPrefix != NULL) {
- start = Tcl_GetString(unquotedPrefix);
- } else {
- start = pattern;
- }
- /*
- * Perform tilde substitution, if needed.
- */
- if (start[0] == '~') {
-
- /*
- * Find the first path separator after the tilde.
- */
- for (tail = start; *tail != ' '; tail++) {
- if (*tail == '\') {
- if (strchr(separators, tail[1]) != NULL) {
- break;
- }
- } else if (strchr(separators, *tail) != NULL) {
- break;
- }
- }
- /*
- * Determine the home directory for the specified user.
- */
-
- c = *tail;
- *tail = ' ';
- if (globFlags & TCL_GLOBMODE_NO_COMPLAIN) {
- /*
- * We will ignore any error message here, and we
- * don't want to mess up the interpreter's result.
- */
- head = DoTildeSubst(NULL, start+1, &buffer);
- } else {
- head = DoTildeSubst(interp, start+1, &buffer);
- }
- *tail = c;
- if (head == NULL) {
- if (globFlags & TCL_GLOBMODE_NO_COMPLAIN) {
- return TCL_OK;
- } else {
- return TCL_ERROR;
- }
- }
- if (head != Tcl_DStringValue(&buffer)) {
- Tcl_DStringAppend(&buffer, head, -1);
- }
- if (unquotedPrefix != NULL) {
- Tcl_DStringAppend(&buffer, tail, -1);
- tail = pattern;
- }
- } else {
- tail = pattern;
- if (unquotedPrefix != NULL) {
- Tcl_DStringAppend(&buffer,Tcl_GetString(unquotedPrefix),-1);
- }
- }
-
- /*
- * We want to remember the length of the current prefix,
- * in case we are using TCL_GLOBMODE_TAILS. Also if we
- * are using TCL_GLOBMODE_DIR, we must make sure the
- * prefix ends in a directory separator.
- */
- prefixLen = Tcl_DStringLength(&buffer);
- if (prefixLen > 0) {
- c = Tcl_DStringValue(&buffer)[prefixLen-1];
- if (strchr(separators, c) == NULL) {
- /*
- * If the prefix is a directory, make sure it ends in a
- * directory separator.
- */
- if (globFlags & TCL_GLOBMODE_DIR) {
- Tcl_DStringAppend(&buffer,separators,1);
- /* Try to borrow that separator from the tail */
- if (*tail == *separators) {
- tail++;
- }
- }
- prefixLen++;
- }
- }
- /*
- * We need to get the old result, in case it is over-written
- * below when we still need it.
- */
- oldResult = Tcl_GetObjResult(interp);
- Tcl_IncrRefCount(oldResult);
- Tcl_ResetResult(interp);
-
- result = TclDoGlob(interp, separators, &buffer, tail, types);
-
- if (result != TCL_OK) {
- if (globFlags & TCL_GLOBMODE_NO_COMPLAIN) {
- /* Put back the old result and reset the return code */
- Tcl_SetObjResult(interp, oldResult);
- result = TCL_OK;
- }
- } else {
- /*
- * Now we must concatenate the 'oldResult' and the current
- * result, and then place that into the interpreter.
- *
- * If we only want the tails, we must strip off the prefix now.
- * It may seem more efficient to pass the tails flag down into
- * TclDoGlob, Tcl_FSMatchInDirectory, but those functions are
- * continually adjusting the prefix as the various pieces of
- * the pattern are assimilated, so that would add a lot of
- * complexity to the code. This way is a little slower (when
- * the -tails flag is given), but much simpler to code.
- */
- int objc, i;
- Tcl_Obj **objv;
- /* Ensure sole ownership */
- if (Tcl_IsShared(oldResult)) {
- Tcl_DecrRefCount(oldResult);
- oldResult = Tcl_DuplicateObj(oldResult);
- Tcl_IncrRefCount(oldResult);
- }
- Tcl_ListObjGetElements(NULL, Tcl_GetObjResult(interp),
- &objc, &objv);
- #ifdef MAC_TCL
- /* adjust prefixLen if TclDoGlob prepended a ':' */
- if ((prefixLen > 0) && (objc > 0)
- && (Tcl_DStringValue(&buffer)[0] != ':')) {
- char *str = Tcl_GetStringFromObj(objv[0],NULL);
- if (str[0] == ':') {
- prefixLen++;
- }
- }
- #endif
- for (i = 0; i< objc; i++) {
- Tcl_Obj* elt;
- if (globFlags & TCL_GLOBMODE_TAILS) {
- int len;
- char *oldStr = Tcl_GetStringFromObj(objv[i],&len);
- if (len == prefixLen) {
- if ((pattern[0] == ' ')
- || (strchr(separators, pattern[0]) == NULL)) {
- elt = Tcl_NewStringObj(".",1);
- } else {
- elt = Tcl_NewStringObj("/",1);
- }
- } else {
- elt = Tcl_NewStringObj(oldStr + prefixLen,
- len - prefixLen);
- }
- } else {
- elt = objv[i];
- }
- /* Assumption that 'oldResult' is a valid list */
- Tcl_ListObjAppendElement(interp, oldResult, elt);
- }
- Tcl_SetObjResult(interp, oldResult);
- }
- /*
- * Release our temporary copy. All code paths above must
- * end here so we free our reference.
- */
- Tcl_DecrRefCount(oldResult);
- Tcl_DStringFree(&buffer);
- return result;
- }
- /*
- *----------------------------------------------------------------------
- *
- * SkipToChar --
- *
- * This function traverses a glob pattern looking for the next
- * unquoted occurance of the specified character at the same braces
- * nesting level.
- *
- * Results:
- * Updates stringPtr to point to the matching character, or to
- * the end of the string if nothing matched. The return value
- * is 1 if a match was found at the top level, otherwise it is 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- static int
- SkipToChar(stringPtr, match)
- char **stringPtr; /* Pointer string to check. */
- char *match; /* Pointer to character to find. */
- {
- int quoted, level;
- register char *p;
- quoted = 0;
- level = 0;
- for (p = *stringPtr; *p != ' '; p++) {
- if (quoted) {
- quoted = 0;
- continue;
- }
- if ((level == 0) && (*p == *match)) {
- *stringPtr = p;
- return 1;
- }
- if (*p == '{') {
- level++;
- } else if (*p == '}') {
- level--;
- } else if (*p == '\') {
- quoted = 1;
- }
- }
- *stringPtr = p;
- return 0;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TclDoGlob --
- *
- * This recursive procedure forms the heart of the globbing
- * code. It performs a depth-first traversal of the tree
- * given by the path name to be globbed. The directory and
- * remainder are assumed to be native format paths. The prefix
- * contained in 'headPtr' is not used as a glob pattern, simply
- * as a path specifier, so it can contain unquoted glob-sensitive
- * characters (if the directories to which it points contain
- * such strange characters).
- *
- * Results:
- * The return value is a standard Tcl result indicating whether
- * an error occurred in globbing. After a normal return the
- * result in interp will be set to hold all of the file names
- * given by the dir and rem arguments. After an error the
- * result in interp will hold an error message.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- int
- TclDoGlob(interp, separators, headPtr, tail, types)
- Tcl_Interp *interp; /* Interpreter to use for error reporting
- * (e.g. unmatched brace). */
- char *separators; /* String containing separator characters
- * that should be used to identify globbing
- * boundaries. */
- Tcl_DString *headPtr; /* Completely expanded prefix. */
- char *tail; /* The unexpanded remainder of the path.
- * Must not be a pointer to a static string. */
- Tcl_GlobTypeData *types; /* List object containing list of acceptable
- * types. May be NULL. */
- {
- int baseLength, quoted, count;
- int result = TCL_OK;
- char *name, *p, *openBrace, *closeBrace, *firstSpecialChar, savedChar;
- char lastChar = 0;
-
- int length = Tcl_DStringLength(headPtr);
- if (length > 0) {
- lastChar = Tcl_DStringValue(headPtr)[length-1];
- }
- /*
- * Consume any leading directory separators, leaving tail pointing
- * just past the last initial separator.
- */
- count = 0;
- name = tail;
- for (; *tail != ' '; tail++) {
- if (*tail == '\') {
- /*
- * If the first character is escaped, either we have a directory
- * separator, or we have any other character. In the latter case
- * the rest of tail is a pattern, and we must break from the loop.
- * This is particularly important on Windows where '' is both
- * the escaping character and a directory separator.
- */
- if (strchr(separators, tail[1]) != NULL) {
- tail++;
- } else {
- break;
- }
- } else if (strchr(separators, *tail) == NULL) {
- break;
- }
- if (tclPlatform != TCL_PLATFORM_MAC) {
- if (*tail == '\') {
- Tcl_DStringAppend(headPtr, separators, 1);
- } else {
- Tcl_DStringAppend(headPtr, tail, 1);
- }
- }
- count++;
- }
- /*
- * Deal with path separators. On the Mac, we have to watch out
- * for multiple separators, since they are special in Mac-style
- * paths.
- */
- switch (tclPlatform) {
- case TCL_PLATFORM_MAC:
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- if (*separators == '/') {
- if (((length == 0) && (count == 0))
- || ((length > 0) && (lastChar != ':'))) {
- Tcl_DStringAppend(headPtr, ":", 1);
- }
- } else {
- #endif
- if (count == 0) {
- if ((length > 0) && (lastChar != ':')) {
- Tcl_DStringAppend(headPtr, ":", 1);
- }
- } else {
- if (lastChar == ':') {
- count--;
- }
- while (count-- > 0) {
- Tcl_DStringAppend(headPtr, ":", 1);
- }
- }
- #ifdef MAC_UNDERSTANDS_UNIX_PATHS
- }
- #endif
- break;
- case TCL_PLATFORM_WINDOWS:
- /*
- * If this is a drive relative path, add the colon and the
- * trailing slash if needed. Otherwise add the slash if
- * this is the first absolute element, or a later relative
- * element. Add an extra slash if this is a UNC path.
- if (*name == ':') {
- Tcl_DStringAppend(headPtr, ":", 1);
- if (count > 1) {
- Tcl_DStringAppend(headPtr, "/", 1);
- }
- } else if ((*tail != ' ')
- && (((length > 0)
- && (strchr(separators, lastChar) == NULL))
- || ((length == 0) && (count > 0)))) {
- Tcl_DStringAppend(headPtr, "/", 1);
- if ((length == 0) && (count > 1)) {
- Tcl_DStringAppend(headPtr, "/", 1);
- }
- }
- */
-
- break;
- case TCL_PLATFORM_UNIX: {
- /*
- * Add a separator if this is the first absolute element, or
- * a later relative element.
- if ((*tail != ' ')
- && (((length > 0)
- && (strchr(separators, lastChar) == NULL))
- || ((length == 0) && (count > 0)))) {
- Tcl_DStringAppend(headPtr, "/", 1);
- }
- */
- break;
- }
- }
- /*
- * Look for the first matching pair of braces or the first
- * directory separator that is not inside a pair of braces.
- */
- openBrace = closeBrace = NULL;
- quoted = 0;
- for (p = tail; *p != ' '; p++) {
- if (quoted) {
- quoted = 0;
- } else if (*p == '\') {
- quoted = 1;
- if (strchr(separators, p[1]) != NULL) {
- break; /* Quoted directory separator. */
- }
- } else if (strchr(separators, *p) != NULL) {
- break; /* Unquoted directory separator. */
- } else if (*p == '{') {
- openBrace = p;
- p++;
- if (SkipToChar(&p, "}")) {
- closeBrace = p; /* Balanced braces. */
- break;
- }
- Tcl_SetResult(interp, "unmatched open-brace in file name",
- TCL_STATIC);
- return TCL_ERROR;
- } else if (*p == '}') {
- Tcl_SetResult(interp, "unmatched close-brace in file name",
- TCL_STATIC);
- return TCL_ERROR;
- }
- }
- /*
- * Substitute the alternate patterns from the braces and recurse.
- */
- if (openBrace != NULL) {
- char *element;
- Tcl_DString newName;
- Tcl_DStringInit(&newName);
- /*
- * For each element within in the outermost pair of braces,
- * append the element and the remainder to the fixed portion
- * before the first brace and recursively call TclDoGlob.
- */
- Tcl_DStringAppend(&newName, tail, openBrace-tail);
- baseLength = Tcl_DStringLength(&newName);
- length = Tcl_DStringLength(headPtr);
- *closeBrace = ' ';
- for (p = openBrace; p != closeBrace; ) {
- p++;
- element = p;
- SkipToChar(&p, ",");
- Tcl_DStringSetLength(headPtr, length);
- Tcl_DStringSetLength(&newName, baseLength);
- Tcl_DStringAppend(&newName, element, p-element);
- Tcl_DStringAppend(&newName, closeBrace+1, -1);
- result = TclDoGlob(interp, separators, headPtr,
- Tcl_DStringValue(&newName), types);
- if (result != TCL_OK) {
- break;
- }
- }
- *closeBrace = '}';
- Tcl_DStringFree(&newName);
- return result;
- }
- /*
- * At this point, there are no more brace substitutions to perform on
- * this path component. The variable p is pointing at a quoted or
- * unquoted directory separator or the end of the string. So we need
- * to check for special globbing characters in the current pattern.
- * We avoid modifying tail if p is pointing at the end of the string.
- */
- if (*p != ' ') {
- /*
- * Note that we are modifying the string in place. This won't work
- * if the string is a static.
- */
- savedChar = *p;
- *p = ' ';
- firstSpecialChar = strpbrk(tail, "*[]?\");
- *p = savedChar;
- } else {
- firstSpecialChar = strpbrk(tail, "*[]?\");
- }
- if (firstSpecialChar != NULL) {
- int ret;
- Tcl_Obj *head = Tcl_NewStringObj(Tcl_DStringValue(headPtr),-1);
- Tcl_IncrRefCount(head);
- /*
- * Look for matching files in the given directory. The
- * implementation of this function is platform specific. For
- * each file that matches, it will add the match onto the
- * resultPtr given.
- */
- if (*p == ' ') {
- ret = Tcl_FSMatchInDirectory(interp, Tcl_GetObjResult(interp),
- head, tail, types);
- } else {
- /*
- * We do the recursion ourselves. This makes implementing
- * Tcl_FSMatchInDirectory for each filesystem much easier.
- */
- Tcl_GlobTypeData dirOnly = { TCL_GLOB_TYPE_DIR, 0, NULL, NULL };
- char save = *p;
- Tcl_Obj *resultPtr;
- resultPtr = Tcl_NewListObj(0, NULL);
- Tcl_IncrRefCount(resultPtr);
- *p = ' ';
- ret = Tcl_FSMatchInDirectory(interp, resultPtr,
- head, tail, &dirOnly);
- *p = save;
- if (ret == TCL_OK) {
- int resLength;
- ret = Tcl_ListObjLength(interp, resultPtr, &resLength);
- if (ret == TCL_OK) {
- int i;
- for (i =0; i< resLength; i++) {
- Tcl_Obj *elt;
- Tcl_DString ds;
- Tcl_ListObjIndex(interp, resultPtr, i, &elt);
- Tcl_DStringInit(&ds);
- Tcl_DStringAppend(&ds, Tcl_GetString(elt), -1);
- if(tclPlatform == TCL_PLATFORM_MAC) {
- Tcl_DStringAppend(&ds, ":",1);
- } else {
- Tcl_DStringAppend(&ds, "/",1);
- }
- ret = TclDoGlob(interp, separators, &ds, p+1, types);
- Tcl_DStringFree(&ds);
- if (ret != TCL_OK) {
- break;
- }
- }
- }
- }
- Tcl_DecrRefCount(resultPtr);
- }
- Tcl_DecrRefCount(head);
- return ret;
- }
- Tcl_DStringAppend(headPtr, tail, p-tail);
- if (*p != ' ') {
- return TclDoGlob(interp, separators, headPtr, p, types);
- } else {
- /*
- * This is the code path reached by a command like 'glob foo'.
- *
- * There are no more wildcards in the pattern and no more
- * unprocessed characters in the tail, so now we can construct
- * the path, and pass it to Tcl_FSMatchInDirectory with an
- * empty pattern to verify the existence of the file and check
- * it is of the correct type (if a 'types' flag it given -- if
- * no such flag was given, we could just use 'Tcl_FSLStat', but
- * for simplicity we keep to a common approach).
- */
- Tcl_Obj *nameObj;
- switch (tclPlatform) {
- case TCL_PLATFORM_MAC: {
- if (strchr(Tcl_DStringValue(headPtr), ':') == NULL) {
- Tcl_DStringAppend(headPtr, ":", 1);
- }
- break;
- }
- case TCL_PLATFORM_WINDOWS: {
- if (Tcl_DStringLength(headPtr) == 0) {
- if (((*name == '\') && (name[1] == '/' || name[1] == '\'))
- || (*name == '/')) {
- Tcl_DStringAppend(headPtr, "/", 1);
- } else {
- Tcl_DStringAppend(headPtr, ".", 1);
- }
- }
- #if defined(__CYGWIN__) && defined(__WIN32__)
- {
- extern int cygwin_conv_to_win32_path
- _ANSI_ARGS_((CONST char *, char *));
- char winbuf[MAX_PATH+1];
- cygwin_conv_to_win32_path(Tcl_DStringValue(headPtr), winbuf);
- Tcl_DStringFree(headPtr);
- Tcl_DStringAppend(headPtr, winbuf, -1);
- }
- #endif /* __CYGWIN__ && __WIN32__ */
- /*
- * Convert to forward slashes. This is required to pass
- * some Tcl tests. We should probably remove the conversions
- * here and in tclWinFile.c, since they aren't needed since
- * the dropping of support for Win32s.
- */
- for (p = Tcl_DStringValue(headPtr); *p != ' '; p++) {
- if (*p == '\') {
- *p = '/';
- }
- }
- break;
- }
- case TCL_PLATFORM_UNIX: {
- if (Tcl_DStringLength(headPtr) == 0) {
- if ((*name == '\' && name[1] == '/') || (*name == '/')) {
- Tcl_DStringAppend(headPtr, "/", 1);
- } else {
- Tcl_DStringAppend(headPtr, ".", 1);
- }
- }
- break;
- }
- }
- /* Common for all platforms */
- name = Tcl_DStringValue(headPtr);
- nameObj = Tcl_NewStringObj(name, Tcl_DStringLength(headPtr));
- Tcl_IncrRefCount(nameObj);
- Tcl_FSMatchInDirectory(interp, Tcl_GetObjResult(interp), nameObj,
- NULL, types);
- Tcl_DecrRefCount(nameObj);
- return TCL_OK;
- }
- }
- /*
- *---------------------------------------------------------------------------
- *
- * TclFileDirname
- *
- * This procedure calculates the directory above a given
- * path: basically 'file dirname'. It is used both by
- * the 'dirname' subcommand of file and by code in tclIOUtil.c.
- *
- * Results:
- * NULL if an error occurred, otherwise a Tcl_Obj owned by
- * the caller (i.e. most likely with refCount 1).
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
- Tcl_Obj*
- TclFileDirname(interp, pathPtr)
- Tcl_Interp *interp; /* Used for error reporting */
- Tcl_Obj *pathPtr; /* Path to take dirname of */
- {
- int splitElements;
- Tcl_Obj *splitPtr;
- Tcl_Obj *splitResultPtr = NULL;
- /*
- * The behaviour we want here is slightly different to
- * the standard Tcl_FSSplitPath in the handling of home
- * directories; Tcl_FSSplitPath preserves the "~" while
- * this code computes the actual full path name, if we
- * had just a single component.
- */
- splitPtr = Tcl_FSSplitPath(pathPtr, &splitElements);
- if ((splitElements == 1) && (Tcl_GetString(pathPtr)[0] == '~')) {
- Tcl_DecrRefCount(splitPtr);
- splitPtr = Tcl_FSGetNormalizedPath(interp, pathPtr);
- if (splitPtr == NULL) {
- return NULL;
- }
- splitPtr = Tcl_FSSplitPath(splitPtr, &splitElements);
- }
- /*
- * Return all but the last component. If there is only one
- * component, return it if the path was non-relative, otherwise
- * return the current directory.
- */
- if (splitElements > 1) {
- splitResultPtr = Tcl_FSJoinPath(splitPtr, splitElements - 1);
- } else if (splitElements == 0 ||
- (Tcl_FSGetPathType(pathPtr) == TCL_PATH_RELATIVE)) {
- splitResultPtr = Tcl_NewStringObj(
- ((tclPlatform == TCL_PLATFORM_MAC) ? ":" : "."), 1);
- } else {
- Tcl_ListObjIndex(NULL, splitPtr, 0, &splitResultPtr);
- }
- Tcl_IncrRefCount(splitResultPtr);
- Tcl_DecrRefCount(splitPtr);
- return splitResultPtr;
- }
- /*
- *---------------------------------------------------------------------------
- *
- * Tcl_AllocStatBuf
- *
- * This procedure allocates a Tcl_StatBuf on the heap. It exists
- * so that extensions may be used unchanged on systems where
- * largefile support is optional.
- *
- * Results:
- * A pointer to a Tcl_StatBuf which may be deallocated by being
- * passed to ckfree().
- *
- * Side effects:
- * None.
- *
- *---------------------------------------------------------------------------
- */
- Tcl_StatBuf *
- Tcl_AllocStatBuf() {
- return (Tcl_StatBuf *) ckalloc(sizeof(Tcl_StatBuf));
- }