diff options
Diffstat (limited to 'generic/tclFileName.c')
| -rw-r--r-- | generic/tclFileName.c | 2979 |
1 files changed, 1363 insertions, 1616 deletions
diff --git a/generic/tclFileName.c b/generic/tclFileName.c index c5ecf0f..07757d9 100644 --- a/generic/tclFileName.c +++ b/generic/tclFileName.c @@ -1,66 +1,23 @@ -/* +/* * tclFileName.c -- * - * This file contains routines for converting file names betwen - * native and network form. + * 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. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ -#include <sys/stat.h> #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 "^((/+([.][.]?/+)*([.][.]?)?)|(~[^:/]*)(/[^:]*)?|(~[^:]*)(:.*)?|/+([.][.]?/+)*([^:/]+)(/[^:]*)?|([^:]+):.*)$" +#include "tclFileSystem.h" /* For TclGetPathType() */ /* - * 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. + * The following variable is set in the TclPlatformInit call to one of: + * TCL_PLATFORM_UNIX or TCL_PLATFORM_WINDOWS. */ TclPlatformType tclPlatform = TCL_PLATFORM_UNIX; @@ -69,85 +26,60 @@ 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 +static const char * DoTildeSubst(Tcl_Interp *interp, + const char *user, Tcl_DString *resultPtr); +static const char * ExtractWinRoot(const char *path, + Tcl_DString *resultPtr, int offset, + Tcl_PathType *typePtr); +static int SkipToChar(char **stringPtr, int match); +static Tcl_Obj * SplitWinPath(const char *path); +static Tcl_Obj * SplitUnixPath(const char *path); +static int DoGlob(Tcl_Interp *interp, Tcl_Obj *resultPtr, + const char *separators, Tcl_Obj *pathPtr, int flags, + char *pattern, Tcl_GlobTypeData *types); /* *---------------------------------------------------------------------- * - * FileNameInit -- + * SetResultLength -- * - * This procedure initializes the patterns used by this module. + * Resets the result DString for ExtractWinRoot to accommodate + * any NT extended path prefixes. * * Results: * None. * * Side effects: - * Compiles the regular expressions. - * + * May modify the Tcl_DString. *---------------------------------------------------------------------- */ static void -FileNameInit() +SetResultLength( + Tcl_DString *resultPtr, + int offset, + int extended) { - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); - if (!tsdPtr->initialized) { - tsdPtr->initialized = 1; - tsdPtr->macRootPatternPtr = Tcl_NewStringObj(MAC_ROOT_PATTERN, -1); - Tcl_CreateThreadExitHandler(FileNameCleanup, NULL); + Tcl_DStringSetLength(resultPtr, offset); + if (extended == 2) { + Tcl_DStringAppend(resultPtr, "//?/UNC/", 8); + } else if (extended == 1) { + Tcl_DStringAppend(resultPtr, "//?/", 4); } } /* *---------------------------------------------------------------------- * - * 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. - * + * 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. + * 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. @@ -155,59 +87,88 @@ FileNameCleanup(clientData) *---------------------------------------------------------------------- */ -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 +static const char * +ExtractWinRoot( + 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 */ + Tcl_PathType *typePtr) /* Where to store pathType result */ { + int extended = 0; + + if ( (path[0] == '/' || path[0] == '\\') + && (path[1] == '/' || path[1] == '\\') + && (path[2] == '?') + && (path[3] == '/' || path[3] == '\\')) { + extended = 1; + path = path + 4; + if (path[0] == 'U' && path[1] == 'N' && path[2] == 'C' + && (path[3] == '/' || path[3] == '\\')) { + extended = 2; + path = path + 4; + } + } + if (path[0] == '/' || path[0] == '\\') { - /* Might be a UNC or Vol-Relative path */ - CONST char *host, *share, *tail; + /* + * 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); + SetResultLength(resultPtr, offset, extended); *typePtr = TCL_PATH_VOLUME_RELATIVE; Tcl_DStringAppend(resultPtr, "/", 1); return &path[1]; } host = &path[2]; - /* Skip separators */ - while (host[0] == '/' || host[0] == '\\') host++; + /* + * Skip separators. + */ + + while (host[0] == '/' || host[0] == '\\') { + host++; + } for (hlen = 0; host[hlen];hlen++) { - if (host[hlen] == '/' || host[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 + /* + * 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); + SetResultLength(resultPtr, offset, extended); share = &host[hlen]; - /* Skip separators */ - while (share[0] == '/' || share[0] == '\\') share++; + /* + * Skip separators. + */ + + while (share[0] == '/' || share[0] == '\\') { + share++; + } - for (slen = 0; share[slen];slen++) { - if (share[slen] == '/' || share[slen] == '\\') + for (slen=0; share[slen]; slen++) { + if (share[slen] == '/' || share[slen] == '\\') { break; + } } Tcl_DStringAppend(resultPtr, "//", 2); Tcl_DStringAppend(resultPtr, host, hlen); @@ -216,24 +177,37 @@ ExtractWinRoot(path, resultPtr, offset, typePtr) tail = &share[slen]; - /* Skip separators */ - while (tail[0] == '/' || tail[0] == '\\') tail++; + /* + * 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); + /* + * Might be a drive separator. + */ + + SetResultLength(resultPtr, offset, extended); if (path[2] != '/' && path[2] != '\\') { *typePtr = TCL_PATH_VOLUME_RELATIVE; Tcl_DStringAppend(resultPtr, path, 2); return &path[2]; } else { - char *tail = (char*)&path[3]; + const char *tail = &path[3]; - /* Skip separators */ - while (*tail && (tail[0] == '/' || tail[0] == '\\')) tail++; + /* + * Skip separators. + */ + + while (*tail && (tail[0] == '/' || tail[0] == '\\')) { + tail++; + } *typePtr = TCL_PATH_ABSOLUTE; Tcl_DStringAppend(resultPtr, path, 2); @@ -243,58 +217,90 @@ ExtractWinRoot(path, resultPtr, offset, typePtr) } } else { int abs = 0; - if ((path[0] == 'c' || path[0] == 'C') - && (path[1] == 'o' || path[1] == 'O')) { + + /* + * Check for Windows devices. + */ + + 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 */ + && path[3] >= '1' && path[3] <= '4') { + /* + * May have match for 'com[1-4]:?', which is a serial port. + */ + if (path[4] == '\0') { abs = 4; } else if (path [4] == ':' && path[5] == '\0') { abs = 5; } + } else if ((path[2] == 'n' || path[2] == 'N') && path[3] == '\0') { - /* Have match for 'con' */ + /* + * 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')) { + && (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]:?' */ + /* + * May have match for 'lpt[1-3]:?' + */ + if (path[4] == '\0') { abs = 4; } else if (path [4] == ':' && path[5] == '\0') { abs = 5; } } + } else if ((path[0] == 'p' || path[0] == 'P') - && (path[1] == 'r' || path[1] == 'R') - && (path[2] == 'n' || path[2] == 'N') - && path[3] == '\0') { - /* Have match for 'prn' */ + && (path[1] == 'r' || path[1] == 'R') + && (path[2] == 'n' || path[2] == 'N') + && path[3] == '\0') { + /* + * 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] == '\0') { - /* Have match for 'nul' */ + && (path[1] == 'u' || path[1] == 'U') + && (path[2] == 'l' || path[2] == 'L') + && path[3] == '\0') { + /* + * 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] == '\0') { - /* Have match for 'aux' */ + && (path[1] == 'u' || path[1] == 'U') + && (path[2] == 'x' || path[2] == 'X') + && path[3] == '\0') { + /* + * Have match for 'aux'. + */ + abs = 3; } + if (abs != 0) { *typePtr = TCL_PATH_ABSOLUTE; - Tcl_DStringSetLength(resultPtr, offset); + SetResultLength(resultPtr, offset, extended); Tcl_DStringAppend(resultPtr, path, abs); return path + abs; } } - /* Anything else is treated as relative */ + + /* + * Anything else is treated as relative. + */ + *typePtr = TCL_PATH_RELATIVE; return path; } @@ -304,12 +310,12 @@ ExtractWinRoot(path, resultPtr, offset, typePtr) * * 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). + * 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 @@ -322,11 +328,12 @@ ExtractWinRoot(path, resultPtr, offset, typePtr) */ Tcl_PathType -Tcl_GetPathType(path) - CONST char *path; +Tcl_GetPathType( + const char *path) { Tcl_PathType type; Tcl_Obj *tempObj = Tcl_NewStringObj(path,-1); + Tcl_IncrRefCount(tempObj); type = Tcl_FSGetPathType(tempObj); Tcl_DecrRefCount(tempObj); @@ -338,12 +345,18 @@ Tcl_GetPathType(path) * * 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. + * 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. + * + * Note that '~' paths are always considered TCL_PATH_ABSOLUTE, even + * though expanding the '~' could lead to any possible path type. This + * function should therefore be considered a low-level, string + * manipulation function only -- it doesn't actually do any expansion in + * making its determination. * * Results: * Returns one of TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, or @@ -356,22 +369,24 @@ Tcl_GetPathType(path) */ Tcl_PathType -TclpGetNativePathType(pathObjPtr, driveNameLengthPtr, driveNameRef) - Tcl_Obj *pathObjPtr; - int *driveNameLengthPtr; - Tcl_Obj **driveNameRef; +TclpGetNativePathType( + Tcl_Obj *pathPtr, /* Native path of interest */ + int *driveNameLengthPtr, /* Returns length of drive, if non-NULL and + * path was absolute */ + Tcl_Obj **driveNameRef) { Tcl_PathType type = TCL_PATH_ABSOLUTE; int pathLen; - char *path = Tcl_GetStringFromObj(pathObjPtr, &pathLen); - + const char *path = Tcl_GetStringFromObj(pathPtr, &pathLen); + if (path[0] == '~') { - /* - * This case is common to all platforms. - * Paths that begin with ~ are absolute. + /* + * This case is common to all platforms. Paths that begin with ~ are + * absolute. */ + if (driveNameLengthPtr != NULL) { - char *end = path + 1; + const char *end = path + 1; while ((*end != '\0') && (*end != '/')) { end++; } @@ -379,137 +394,66 @@ TclpGetNativePathType(pathObjPtr, driveNameLengthPtr, driveNameRef) } } else { switch (tclPlatform) { - case TCL_PLATFORM_UNIX: { - char *origPath = path; - - /* - * Paths that begin with / are absolute. - */ + case TCL_PLATFORM_UNIX: { + const char *origPath = path; + + /* + * Paths that begin with / are absolute. + */ -#ifdef __QNX__ + if (path[0] == '/') { + ++path; +#if defined(__CYGWIN__) || defined(__QNX__) /* - * Check for QNX //<node id> prefix + * Check for "//" network path prefix */ - if (*path && (pathLen > 3) && (path[0] == '/') - && (path[1] == '/') && isdigit(UCHAR(path[2]))) { - path += 3; - while (isdigit(UCHAR(*path))) { + if ((*path == '/') && path[1] && (path[1] != '/')) { + path += 2; + while (*path && *path != '/') { ++path; } - } -#endif - if (path[0] == '/') { - if (driveNameLengthPtr != NULL) { - /* - * We need this addition in case the QNX code - * was used - */ - *driveNameLengthPtr = (1 + path - origPath); +#if defined(__CYGWIN__) + /* UNC paths need to be followed by a share name */ + if (*path++ && (*path && *path != '/')) { + ++path; + while (*path && *path != '/') { + ++path; + } + } else { + path = origPath + 1; } - } else { - type = TCL_PATH_RELATIVE; +#endif } - 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); - +#endif + if (driveNameLengthPtr != NULL) { /* - * Since we have eliminated the easy cases, use the - * root pattern to look for the other types. + * We need this addition in case the QNX or Cygwin code was used. */ - 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 != '\0') { - 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 + *driveNameLengthPtr = (path - origPath); } - 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); - } + } else { + type = TCL_PATH_RELATIVE; + } + 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; } + Tcl_DStringFree(&ds); + break; + } } } return type; @@ -520,18 +464,17 @@ TclpGetNativePathType(pathObjPtr, driveNameLengthPtr, driveNameRef) * * 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. + * 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. * - * 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. + * 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. @@ -539,29 +482,25 @@ TclpGetNativePathType(pathObjPtr, driveNameLengthPtr, driveNameRef) *--------------------------------------------------------------------------- */ -Tcl_Obj* -TclpNativeSplitPath(pathPtr, lenPtr) - Tcl_Obj *pathPtr; /* Path to split. */ - int *lenPtr; /* int to store number of path elements. */ +Tcl_Obj * +TclpNativeSplitPath( + 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. */ + Tcl_Obj *resultPtr = NULL; /* Needed only to prevent gcc warnings. */ /* - * Perform platform specific splitting. + * Perform platform specific splitting. */ switch (tclPlatform) { - case TCL_PLATFORM_UNIX: - resultPtr = SplitUnixPath(Tcl_GetString(pathPtr)); - break; + 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; + case TCL_PLATFORM_WINDOWS: + resultPtr = SplitWinPath(Tcl_GetString(pathPtr)); + break; } /* @@ -579,20 +518,19 @@ TclpNativeSplitPath(pathPtr, lenPtr) * * 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. + * 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. + * 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. @@ -601,17 +539,18 @@ TclpNativeSplitPath(pathPtr, lenPtr) */ 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 +Tcl_SplitPath( + 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 *resultPtr = NULL; /* Needed only to prevent gcc warnings. */ Tcl_Obj *tmpPtr, *eltPtr; int i, size, len; - char *p, *str; + char *p; + const char *str; /* * Perform the splitting, using objectified, vfs-aware code. @@ -620,38 +559,41 @@ Tcl_SplitPath(path, argcPtr, argvPtr) tmpPtr = Tcl_NewStringObj(path, -1); Tcl_IncrRefCount(tmpPtr); resultPtr = Tcl_FSSplitPath(tmpPtr, argcPtr); + Tcl_IncrRefCount(resultPtr); Tcl_DecrRefCount(tmpPtr); - /* Calculate space required for the result */ - + /* + * 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. + * 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) + *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. + * 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); + memcpy(p, str, (size_t) len+1); p += len+1; } - + /* * Now set up the argv pointers. */ @@ -660,7 +602,7 @@ Tcl_SplitPath(path, argcPtr, argvPtr) for (i = 0; i < *argcPtr; i++) { (*argvPtr)[i] = p; - while ((*p++) != '\0') {} + for (; *(p++)!='\0'; ); } (*argvPtr)[i] = NULL; @@ -676,8 +618,8 @@ Tcl_SplitPath(path, argcPtr, argvPtr) * * SplitUnixPath -- * - * This routine is used by Tcl_(FS)SplitPath to handle splitting - * Unix paths. + * This routine is used by Tcl_(FS)SplitPath to handle splitting Unix + * paths. * * Results: * Returns a newly allocated Tcl list object. @@ -688,74 +630,85 @@ Tcl_SplitPath(path, argcPtr, argvPtr) *---------------------------------------------------------------------- */ -static Tcl_Obj* -SplitUnixPath(path) - CONST char *path; /* Pointer to string containing a path. */ +static Tcl_Obj * +SplitUnixPath( + const char *path) /* Pointer to string containing a path. */ { int length; - CONST char *p, *elementStart; + const char *origPath = path, *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; + if (*path == '/') { + Tcl_Obj *rootElt; + ++path; +#if defined(__CYGWIN__) || defined(__QNX__) + /* + * Check for "//" network path prefix + */ + if ((*path == '/') && path[1] && (path[1] != '/')) { + path += 2; + while (*path && *path != '/') { + ++path; + } +#if defined(__CYGWIN__) + /* UNC paths need to be followed by a share name */ + if (*path++ && (*path && *path != '/')) { + ++path; + while (*path && *path != '/') { + ++path; + } + } else { + path = origPath + 1; + } +#endif } - } #endif - - if (path[0] == '/') { - Tcl_ListObjAppendElement(NULL, result, Tcl_NewStringObj("/",1)); - p = path+1; - } else { - p = path; + rootElt = Tcl_NewStringObj(origPath, path - origPath); + Tcl_ListObjAppendElement(NULL, result, rootElt); + while (*path == '/') { + ++path; + } } /* - * Split on slashes. Embedded elements that start with tilde will be + * 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 != '\0') && (*p != '/')) { - p++; + elementStart = path; + while ((*path != '\0') && (*path != '/')) { + path++; } - length = p - elementStart; + length = path - elementStart; if (length > 0) { Tcl_Obj *nextElt; - if ((elementStart[0] == '~') && (elementStart != path)) { - nextElt = Tcl_NewStringObj("./",2); + if ((elementStart[0] == '~') && (elementStart != origPath)) { + TclNewLiteralStringObj(nextElt, "./"); Tcl_AppendToObj(nextElt, elementStart, length); } else { nextElt = Tcl_NewStringObj(elementStart, length); } Tcl_ListObjAppendElement(NULL, result, nextElt); } - if (*p++ == '\0') { + if (*path++ == '\0') { break; } } return result; } - /* *---------------------------------------------------------------------- * * SplitWinPath -- * - * This routine is used by Tcl_(FS)SplitPath to handle splitting - * Windows paths. + * This routine is used by Tcl_(FS)SplitPath to handle splitting Windows + * paths. * * Results: * Returns a newly allocated Tcl list object. @@ -766,17 +719,17 @@ SplitUnixPath(path) *---------------------------------------------------------------------- */ -static Tcl_Obj* -SplitWinPath(path) - CONST char *path; /* Pointer to string containing a path. */ +static Tcl_Obj * +SplitWinPath( + const char *path) /* Pointer to string containing a path. */ { int length; - CONST char *p, *elementStart; + 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); /* @@ -784,16 +737,15 @@ SplitWinPath(path) */ if (p != path) { - Tcl_ListObjAppendElement(NULL, result, - Tcl_NewStringObj(Tcl_DStringValue(&buf), - Tcl_DStringLength(&buf))); + 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. + * 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 { @@ -804,11 +756,10 @@ SplitWinPath(path) length = p - elementStart; if (length > 0) { Tcl_Obj *nextElt; - if ((elementStart != path) - && ((elementStart[0] == '~') + if ((elementStart != path) && ((elementStart[0] == '~') || (isalpha(UCHAR(elementStart[0])) && elementStart[1] == ':'))) { - nextElt = Tcl_NewStringObj("./",2); + TclNewLiteralStringObj(nextElt, "./"); Tcl_AppendToObj(nextElt, elementStart, length); } else { nextElt = Tcl_NewStringObj(elementStart, length); @@ -821,256 +772,21 @@ SplitWinPath(path) } /* - *---------------------------------------------------------------------- - * - * 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] != '\0') { - Tcl_ListObjAppendElement(NULL, result, - Tcl_NewStringObj(elementStart, -1)); - } - } else { - if (elementStart[1] != '\0' || elementStart == path) { - if ((elementStart[1] != '~') && (elementStart[1] != '\0') - && (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 != '\0') && (*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++ == '\0') { - 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. + * 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. + * + * The objects in the array given will temporarily have their refCount + * increased by one, and then decreased by one when this function exits + * (which means if they had zero refCount when we were called, they will + * be freed). * * Results: - * Returns object with refCount of zero + * Returns object owned by the caller (which should increment its + * refCount) - typically an object with refCount of zero. * * Side effects: * None. @@ -1078,26 +794,37 @@ SplitMacPath(path) *--------------------------------------------------------------------------- */ -Tcl_Obj* -Tcl_FSJoinToPath(basePtr, objc, objv) - Tcl_Obj *basePtr; - int objc; - Tcl_Obj *CONST objv[]; +Tcl_Obj * +Tcl_FSJoinToPath( + Tcl_Obj *pathPtr, /* Valid path or NULL. */ + int objc, /* Number of array elements to join */ + Tcl_Obj *const objv[]) /* Path elements to join. */ { int i; Tcl_Obj *lobj, *ret; - if (basePtr == NULL) { + if (pathPtr == NULL) { lobj = Tcl_NewListObj(0, NULL); } else { - lobj = Tcl_NewListObj(1, &basePtr); + lobj = Tcl_NewListObj(1, &pathPtr); } - + for (i = 0; i<objc;i++) { Tcl_ListObjAppendElement(NULL, lobj, objv[i]); } ret = Tcl_FSJoinPath(lobj, -1); + + /* + * It is possible that 'ret' is just a member of the list and is therefore + * going to be freed here. Therefore we must adjust the refCount manually. + * (It would be better if we changed the documentation of this function + * and Tcl_FSJoinPath so that the returned object already has a refCount + * for the caller, hence avoiding these subtleties (and code ugliness)). + */ + + Tcl_IncrRefCount(ret); Tcl_DecrRefCount(lobj); + ret->refCount--; return ret; } @@ -1106,10 +833,10 @@ Tcl_FSJoinToPath(basePtr, objc, objv) * * TclpNativeJoinPath -- * - * 'prefix' is absolute, 'joining' is relative to prefix. + * 'prefix' is absolute, 'joining' is relative to prefix. * * Results: - * modifies prefix + * modifies prefix * * Side effects: * None. @@ -1118,28 +845,28 @@ Tcl_FSJoinToPath(basePtr, objc, objv) */ void -TclpNativeJoinPath(prefix, joining) - Tcl_Obj *prefix; - char* joining; +TclpNativeJoinPath( + Tcl_Obj *prefix, + const char *joining) { int length, needsSep; - char *dest, *p, *start; - + char *dest; + const char *p; + const char *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. + * 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] == ':')))) { + if ((p[0] == '.') && (p[1] == '/') && ((p[2] == '~') + || (tclPlatform==TCL_PLATFORM_WINDOWS && isalpha(UCHAR(p[2])) + && (p[3] == ':')))) { p += 2; } } @@ -1148,159 +875,75 @@ TclpNativeJoinPath(prefix, joining) } switch (tclPlatform) { - case TCL_PLATFORM_UNIX: - /* - * Append a separator if needed. - */ + case TCL_PLATFORM_UNIX: + /* + * Append a separator if needed. + */ - if (length > 0 && (start[length-1] != '/')) { - Tcl_AppendToObj(prefix, "/", 1); - Tcl_GetStringFromObj(prefix, &length); - } - needsSep = 0; - - /* - * Append the element, eliminating duplicate and trailing - * slashes. - */ + if (length > 0 && (start[length-1] != '/')) { + Tcl_AppendToObj(prefix, "/", 1); + Tcl_GetStringFromObj(prefix, &length); + } + needsSep = 0; - Tcl_SetObjLength(prefix, length + (int) strlen(p)); - - dest = Tcl_GetString(prefix) + length; - for (; *p != '\0'; p++) { - if (*p == '/') { - while (p[1] == '/') { - p++; - } - if (p[1] != '\0') { - if (needsSep) { - *dest++ = '/'; - } - } - } else { - *dest++ = *p; - needsSep = 1; + /* + * Append the element, eliminating duplicate and trailing slashes. + */ + + Tcl_SetObjLength(prefix, length + (int) strlen(p)); + + dest = Tcl_GetString(prefix) + length; + for (; *p != '\0'; p++) { + if (*p == '/') { + while (p[1] == '/') { + p++; + } + if (p[1] != '\0' && needsSep) { + *dest++ = '/'; } + } else { + *dest++ = *p; + needsSep = 1; } - length = dest - Tcl_GetString(prefix); - Tcl_SetObjLength(prefix, length); - break; + } + length = dest - Tcl_GetString(prefix); + Tcl_SetObjLength(prefix, length); + break; - case TCL_PLATFORM_WINDOWS: - /* - * Check to see if we need to append a separator. - */ + case TCL_PLATFORM_WINDOWS: + /* + * Check to see if we need to append a separator. + */ - if ((length > 0) && + if ((length > 0) && (start[length-1] != '/') && (start[length-1] != ':')) { - Tcl_AppendToObj(prefix, "/", 1); - Tcl_GetStringFromObj(prefix, &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 != '\0'; p++) { - if ((*p == '/') || (*p == '\\')) { - while ((p[1] == '/') || (p[1] == '\\')) { - p++; - } - if ((p[1] != '\0') && needsSep) { - *dest++ = '/'; - } - } else { - *dest++ = *p; - needsSep = 1; - } - } - length = dest - Tcl_GetString(prefix); - Tcl_SetObjLength(prefix, length); - break; + Tcl_AppendToObj(prefix, "/", 1); + Tcl_GetStringFromObj(prefix, &length); + } + needsSep = 0; - 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. - */ + /* + * Append the element, eliminating duplicate and trailing slashes. + */ -#ifdef MAC_UNDERSTANDS_UNIX_PATHS - int adjustedPath = 0; - if ((strchr(p, ':') == NULL) && (strchr(p, '/') != NULL)) { - char *start = p; - adjustedPath = 1; - while (*start != '\0') { - if (*start == '/') { - *start = ':'; - } - start++; - } - } -#endif - if (length > 0) { - if ((p[0] == ':') && (p[1] == '\0')) { - return; - } - if (start[length-1] != ':') { - if (*p != '\0' && *p != ':') { - Tcl_AppendToObj(prefix, ":", 1); - length++; - } - } else if (*p == ':') { + Tcl_SetObjLength(prefix, length + (int) strlen(p)); + dest = Tcl_GetString(prefix) + length; + for (; *p != '\0'; p++) { + if ((*p == '/') || (*p == '\\')) { + while ((p[1] == '/') || (p[1] == '\\')) { p++; } - } else { - if (*p != '\0' && *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 != '\0') { - if (*start == ':') { - *start = '/'; - } - start++; + if ((p[1] != '\0') && needsSep) { + *dest++ = '/'; } + } else { + *dest++ = *p; + needsSep = 1; } -#endif - break; } + length = dest - Tcl_GetString(prefix); + Tcl_SetObjLength(prefix, length); + break; } return; } @@ -1310,14 +953,13 @@ TclpNativeJoinPath(prefix, joining) * * Tcl_JoinPath -- * - * Combine a list of paths in a platform specific manner. The - * function 'Tcl_FSJoinPath' should be used in preference where - * possible. + * 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. + * 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. @@ -1326,34 +968,46 @@ TclpNativeJoinPath(prefix, joining) */ char * -Tcl_JoinPath(argc, argv, resultPtr) - int argc; - CONST char * CONST *argv; - Tcl_DString *resultPtr; /* Pointer to previously initialized DString */ +Tcl_JoinPath( + 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; + const char *resultStr; + + /* + * Build the list of paths. + */ - /* Build the list of paths */ for (i = 0; i < argc; i++) { - Tcl_ListObjAppendElement(NULL, listObj, + Tcl_ListObjAppendElement(NULL, listObj, Tcl_NewStringObj(argv[i], -1)); } - /* Ask the objectified code to join the paths */ + /* + * 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 */ + /* + * Store the result. + */ + resultStr = Tcl_GetStringFromObj(resultObj, &len); Tcl_DStringAppend(resultPtr, resultStr, len); Tcl_DecrRefCount(resultObj); - /* Return a pointer to the result */ + /* + * Return a pointer to the result. + */ + return Tcl_DStringValue(resultPtr); } @@ -1363,19 +1017,19 @@ Tcl_JoinPath(argc, argv, 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. + * 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. + * 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. @@ -1384,15 +1038,15 @@ Tcl_JoinPath(argc, argv, resultPtr) */ 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 +Tcl_TranslateFileName( + 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_DString *bufferPtr) /* Uninitialized or free DString filled with + * name after tilde substitution. */ { Tcl_Obj *path = Tcl_NewStringObj(name, -1); Tcl_Obj *transPtr; @@ -1403,15 +1057,15 @@ Tcl_TranslateFileName(interp, name, bufferPtr) 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. + * Convert forward slashes to backslashes in Windows paths because some + * system interfaces don't accept forward slashes. */ if (tclPlatform == TCL_PLATFORM_WINDOWS) { @@ -1422,6 +1076,7 @@ Tcl_TranslateFileName(interp, name, bufferPtr) } } } + return Tcl_DStringValue(bufferPtr); } @@ -1430,12 +1085,12 @@ Tcl_TranslateFileName(interp, name, bufferPtr) * * TclGetExtension -- * - * This function returns a pointer to the beginning of the - * extension part of a file name. + * 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. + * starts. If there is no extension, returns NULL. * * Side effects: * None. @@ -1443,11 +1098,11 @@ Tcl_TranslateFileName(interp, name, bufferPtr) *---------------------------------------------------------------------- */ -char * -TclGetExtension(name) - char *name; /* File name to parse. */ +const char * +TclGetExtension( + const char *name) /* File name to parse. */ { - char *p, *lastSep; + const char *p, *lastSep; /* * First find the last directory separator. @@ -1455,30 +1110,18 @@ TclGetExtension(name) 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 != '\0'; p++) { - if (strchr("/\\:", *p) != NULL) { - lastSep = p; - } + case TCL_PLATFORM_UNIX: + lastSep = strrchr(name, '/'); + break; + + case TCL_PLATFORM_WINDOWS: + lastSep = NULL; + for (p = name; *p != '\0'; p++) { + if (strchr("/\\:", *p) != NULL) { + lastSep = p; } - break; + } + break; } p = strrchr(name, '.'); if ((p != NULL) && (lastSep != NULL) && (lastSep > p)) { @@ -1487,7 +1130,7 @@ TclGetExtension(name) /* * 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 + * 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. */ @@ -1505,11 +1148,10 @@ TclGetExtension(name) * * 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. + * 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. @@ -1517,40 +1159,38 @@ TclGetExtension(name) *---------------------------------------------------------------------- */ -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 +static const char * +DoTildeSubst( + 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. */ + Tcl_DString *resultPtr) /* Initialized DString filled with name after + * tilde substitution. */ { - CONST char *dir; + const char *dir; if (*user == '\0') { 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); + Tcl_AppendResult(interp, "couldn't find HOME environment " + "variable to expand path", 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; + } else if (TclpGetUserHome(user, resultPtr) == NULL) { + if (interp) { + Tcl_ResetResult(interp); + Tcl_AppendResult(interp, "user \"", user, "\" doesn't exist", + NULL); } + return NULL; } return Tcl_DStringValue(resultPtr); } @@ -1560,8 +1200,8 @@ DoTildeSubst(interp, user, resultPtr) * * Tcl_GlobObjCmd -- * - * This procedure is invoked to process the "glob" Tcl command. - * See the user documentation for details on what it does. + * 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. @@ -1574,23 +1214,24 @@ DoTildeSubst(interp, user, resultPtr) /* 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. */ +Tcl_GlobObjCmd( + 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; + char *string; + const char *separators; Tcl_Obj *typePtr, *resultPtr, *look; Tcl_Obj *pathOrDir = NULL; Tcl_DString prefix; - static CONST char *options[] = { - "-directory", "-join", "-nocomplain", "-path", "-tails", + static const char *options[] = { + "-directory", "-join", "-nocomplain", "-path", "-tails", "-types", "--", NULL }; enum options { - GLOB_DIR, GLOB_JOIN, GLOB_NOCOMPLAIN, GLOB_PATH, GLOB_TAILS, + 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}; @@ -1601,159 +1242,180 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) dir = PATH_NONE; typePtr = NULL; for (i = 1; i < objc; i++) { - if (Tcl_GetIndexFromObj(interp, objv[i], options, "option", 0, &index) - != TCL_OK) { + 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 + * 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 + * 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; + 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: + + endOfForLoop: if (objc - i < 1) { - Tcl_WrongNumArgs(interp, 1, objv, "?switches? name ?name ...?"); + 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)); + Tcl_AppendResult(interp, + "\"-tails\" must be used with either " + "\"-directory\" or \"-path\"", NULL); 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; + case TCL_PLATFORM_UNIX: + separators = "/"; + break; + case TCL_PLATFORM_WINDOWS: + separators = "/\\:"; + break; } + if (dir == PATH_GENERAL) { int pathlength; - char *last; - char *first = Tcl_GetStringFromObj(pathOrDir,&pathlength); + const char *last; + const 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 */ + /* + * 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 */ + /* + * The whole thing is a prefix. This means we must remove any + * 'tails' flag too, since it is irrelevant now (the same + * effect will happen without it), but in particular its use + * in TclGlob requires a non-NULL pathOrDir. + */ + Tcl_DStringAppend(&pref, first, -1); + globFlags &= ~TCL_GLOBMODE_TAILS; pathOrDir = NULL; } else { - /* Have to split off the end */ + /* + * 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. + + /* + * 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); + Tcl_AppendToObj(pathOrDir, last-1, 1); } } - /* Need to quote 'prefix' */ + + /* + * 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 == '\0') { - break; - } + Tcl_DStringAppend(&prefix, search, find-search); + Tcl_DStringAppend(&prefix, "\\", 1); + Tcl_DStringAppend(&prefix, find, 1); + search = find+1; + if (*search == '\0') { + break; + } } if (*search != '\0') { Tcl_DStringAppend(&prefix, search, -1); @@ -1761,29 +1423,33 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) 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. + /* + * 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); if (length <= 0) { goto skipTypes; } - globTypes = (Tcl_GlobTypeData*) ckalloc(sizeof(Tcl_GlobTypeData)); + globTypes = (Tcl_GlobTypeData*) + TclStackAlloc(interp,sizeof(Tcl_GlobTypeData)); globTypes->type = 0; globTypes->perm = 0; globTypes->macType = NULL; globTypes->macCreator = NULL; - while(--length >= 0) { + + while (--length >= 0) { int len; - char *str; + const char *str; + Tcl_ListObjIndex(interp, typePtr, length, &look); str = Tcl_GetStringFromObj(look, &len); if (strcmp("readonly", str) == 0) { @@ -1792,50 +1458,56 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) globTypes->perm |= TCL_GLOB_PERM_HIDDEN; } else if (len == 1) { switch (str[0]) { - case 'r': + case 'r': globTypes->perm |= TCL_GLOB_PERM_R; break; - case 'w': + case 'w': globTypes->perm |= TCL_GLOB_PERM_W; break; - case 'x': + case 'x': globTypes->perm |= TCL_GLOB_PERM_X; break; - case 'b': + case 'b': globTypes->type |= TCL_GLOB_TYPE_BLOCK; break; - case 'c': + case 'c': globTypes->type |= TCL_GLOB_TYPE_CHAR; break; - case 'd': + case 'd': globTypes->type |= TCL_GLOB_TYPE_DIR; break; - case 'p': + case 'p': globTypes->type |= TCL_GLOB_TYPE_PIPE; break; - case 'f': + case 'f': globTypes->type |= TCL_GLOB_TYPE_FILE; break; - case 'l': + case 'l': globTypes->type |= TCL_GLOB_TYPE_LINK; break; - case 's': + case 's': globTypes->type |= TCL_GLOB_TYPE_SOCK; break; - default: + default: goto badTypesArg; } + } else if (len == 4) { - /* This is assumed to be a MacOS file type */ + /* + * 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_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); @@ -1858,22 +1530,25 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) } } } + /* - * Error cases. We reset - * the 'join' flag to zero, since we haven't yet - * made use of it. + * Error cases. We reset the 'join' flag to zero, since we + * haven't yet made use of it. */ - badTypesArg: - resultPtr = Tcl_GetObjResult(interp); + + badTypesArg: + TclNewObj(resultPtr); Tcl_AppendToObj(resultPtr, "bad argument to \"-types\": ", -1); Tcl_AppendObjToObj(resultPtr, look); + Tcl_SetObjResult(interp, resultPtr); result = TCL_ERROR; join = 0; goto endOfGlob; - badMacTypesArg: + + badMacTypesArg: Tcl_SetObjResult(interp, Tcl_NewStringObj( - "only one MacOS type or creator argument" - " to \"-types\" allowed", -1)); + "only one MacOS type or creator argument" + " to \"-types\" allowed", -1)); result = TCL_ERROR; join = 0; goto endOfGlob; @@ -1882,15 +1557,16 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) } skipTypes: - /* - * 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. + /* + * 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); @@ -1902,66 +1578,70 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) Tcl_DStringAppend(&prefix, separators, 1); } } - if (TclGlob(interp, Tcl_DStringValue(&prefix), pathOrDir, - globFlags, globTypes) != TCL_OK) { + 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; - } + } 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)); } - 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; - } + 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 */ + /* + * 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); + (join || (objc == 1)) ? " \"" : "s \"", NULL); if (join) { - Tcl_AppendResult(interp, Tcl_DStringValue(&prefix), - (char *) NULL); + Tcl_AppendResult(interp, Tcl_DStringValue(&prefix), NULL); } else { - char *sep = ""; + const char *sep = ""; for (i = 0; i < objc; i++) { string = Tcl_GetString(objv[i]); - Tcl_AppendResult(interp, sep, string, (char *) NULL); + Tcl_AppendResult(interp, sep, string, NULL); sep = " "; } } - Tcl_AppendResult(interp, "\"", (char *) NULL); + Tcl_AppendResult(interp, "\"", NULL); result = TCL_ERROR; } } + endOfGlob: if (join || (dir == PATH_GENERAL)) { Tcl_DStringFree(&prefix); @@ -1976,7 +1656,7 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) if (globTypes->macCreator != NULL) { Tcl_DecrRefCount(globTypes->macCreator); } - ckfree((char *) globTypes); + TclStackFree(interp, globTypes); } return result; } @@ -1986,24 +1666,24 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) * * 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. + * This procedure prepares arguments for the DoGlob call. It sets the + * separator string based on the platform, performs * tilde substitution, + * and calls DoGlob. + * + * 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. + * + * Note that if globFlags contains 'TCL_GLOBMODE_TAILS' then pathPrefix + * cannot be NULL (it is only allowed with -dir or -path). * * 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. + * 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 DoGlob) holds all of the file names given by the pattern and + * pathPrefix arguments. After an error the result in interp will hold + * an error message. * * Side effects: * The 'pattern' is written to. @@ -2013,216 +1693,349 @@ Tcl_GlobObjCmd(dummy, interp, objc, objv) /* 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. */ +TclGlob( + 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 *pathPrefix, /* Path 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; + const char *separators; + const char *head; char *tail, *start; - char c; - int result, prefixLen; - Tcl_DString buffer; - Tcl_Obj *oldResult; + int result; + Tcl_Obj *filenamesObj, *savedResultObj; 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; + case TCL_PLATFORM_UNIX: + separators = "/"; + break; + case TCL_PLATFORM_WINDOWS: + separators = "/\\:"; + break; } - Tcl_DStringInit(&buffer); - if (unquotedPrefix != NULL) { - start = Tcl_GetString(unquotedPrefix); - } else { - start = pattern; - } + if (pathPrefix == NULL) { + char c; + Tcl_DString buffer; + Tcl_DStringInit(&buffer); - /* - * Perform tilde substitution, if needed. - */ + start = pattern; - if (start[0] == '~') { - /* - * Find the first path separator after the tilde. + * Perform tilde substitution, if needed. */ - for (tail = start; *tail != '\0'; tail++) { - if (*tail == '\\') { - if (strchr(separators, tail[1]) != NULL) { + + if (start[0] == '~') { + /* + * Find the first path separator after the tilde. + */ + + for (tail = start; *tail != '\0'; tail++) { + if (*tail == '\\') { + if (strchr(separators, tail[1]) != NULL) { + break; + } + } else if (strchr(separators, *tail) != NULL) { break; } - } else if (strchr(separators, *tail) != NULL) { - break; } - } - /* - * Determine the home directory for the specified user. - */ - - c = *tail; - *tail = '\0'; - 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. + /* + * Determine the home directory for the specified user. */ - head = DoTildeSubst(NULL, start+1, &buffer); - } else { + + c = *tail; + *tail = '\0'; head = DoTildeSubst(interp, start+1, &buffer); - } - *tail = c; - if (head == NULL) { - if (globFlags & TCL_GLOBMODE_NO_COMPLAIN) { - return TCL_OK; - } else { + *tail = c; + if (head == NULL) { return TCL_ERROR; } - } - if (head != Tcl_DStringValue(&buffer)) { - Tcl_DStringAppend(&buffer, head, -1); - } - if (unquotedPrefix != NULL) { - Tcl_DStringAppend(&buffer, tail, -1); + if (head != Tcl_DStringValue(&buffer)) { + Tcl_DStringAppend(&buffer, head, -1); + } + pathPrefix = Tcl_NewStringObj(Tcl_DStringValue(&buffer), + Tcl_DStringLength(&buffer)); + Tcl_IncrRefCount(pathPrefix); + globFlags |= TCL_GLOBMODE_DIR; + if (c != '\0') { + tail++; + } + Tcl_DStringFree(&buffer); + } else { tail = pattern; } } else { + Tcl_IncrRefCount(pathPrefix); 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. + + /* + * Handling empty path prefixes with glob patterns like 'C:' or + * 'c:////////' is a pain on Windows if we leave it too late, since these + * aren't really patterns at all! We therefore check the head of the + * pattern now for such cases, if we don't have an unquoted prefix yet. + * + * Similarly on Unix with '/' at the head of the pattern -- it just + * indicates the root volume, so we treat it as such. */ - 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) { + + if (tclPlatform == TCL_PLATFORM_WINDOWS) { + if (pathPrefix == NULL && tail[0] != '\0' && tail[1] == ':') { + char *p = tail + 1; + pathPrefix = Tcl_NewStringObj(tail, 1); + while (*p != '\0') { + char c = p[1]; + if (*p == '\\') { + if (strchr(separators, c) != NULL) { + if (c == '\\') { + c = '/'; + } + Tcl_AppendToObj(pathPrefix, &c, 1); + p++; + } else { + break; + } + } else if (strchr(separators, *p) != NULL) { + Tcl_AppendToObj(pathPrefix, p, 1); + } else { + break; + } + p++; + } + tail = p; + Tcl_IncrRefCount(pathPrefix); + } else if (pathPrefix == NULL && (tail[0] == '/' + || (tail[0] == '\\' && tail[1] == '\\'))) { + int driveNameLen; + Tcl_Obj *driveName; + Tcl_Obj *temp = Tcl_NewStringObj(tail, -1); + Tcl_IncrRefCount(temp); + + switch (TclGetPathType(temp, NULL, &driveNameLen, &driveName)) { + case TCL_PATH_VOLUME_RELATIVE: { + /* + * Volume relative path which is equivalent to a path in the + * root of the cwd's volume. We will actually return + * non-volume-relative paths here. i.e. 'glob /foo*' will + * return 'C:/foobar'. This is much the same as globbing for a + * path with '\\' will return one with '/' on Windows. + */ + + Tcl_Obj *cwd = Tcl_FSGetCwd(interp); + + if (cwd == NULL) { + Tcl_DecrRefCount(temp); + return TCL_ERROR; + } + pathPrefix = Tcl_NewStringObj(Tcl_GetString(cwd), 3); + Tcl_DecrRefCount(cwd); + if (tail[0] == '/') { tail++; + } else { + tail += 2; } + Tcl_IncrRefCount(pathPrefix); + break; } - prefixLen++; + case TCL_PATH_ABSOLUTE: + /* + * Absolute, possibly network path //Machine/Share. Use that + * as the path prefix (it already has a refCount). + */ + + pathPrefix = driveName; + tail += driveNameLen; + break; + case TCL_PATH_RELATIVE: + /* Do nothing */ + break; + } + Tcl_DecrRefCount(temp); + } + + /* + * ':' no longer needed as a separator. It is only relevant to the + * beginning of the path. + */ + + separators = "/\\"; + + } else if (tclPlatform == TCL_PLATFORM_UNIX) { + if (pathPrefix == NULL && tail[0] == '/') { + pathPrefix = Tcl_NewStringObj(tail, 1); + tail++; + Tcl_IncrRefCount(pathPrefix); } } - /* - * We need to get the old result, in case it is over-written - * below when we still need it. + /* + * Finally if we still haven't managed to generate a path prefix, check if + * the path starts with a current volume. + */ + + if (pathPrefix == NULL) { + int driveNameLen; + Tcl_Obj *driveName; + if (TclFSNonnativePathType(tail, (int) strlen(tail), NULL, + &driveNameLen, &driveName) == TCL_PATH_ABSOLUTE) { + pathPrefix = driveName; + tail += driveNameLen; + } + } + + /* + * To process a [glob] invokation, this function may be called multiple + * times. Each time, the previously discovered filenames are in the + * interpreter result. We stash that away here so the result is free for + * error messsages. */ - oldResult = Tcl_GetObjResult(interp); - Tcl_IncrRefCount(oldResult); + + savedResultObj = Tcl_GetObjResult(interp); + Tcl_IncrRefCount(savedResultObj); 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); + TclNewObj(filenamesObj); + Tcl_IncrRefCount(filenamesObj); + + /* + * Now we do the actual globbing, adding filenames as we go to buffer in + * filenamesObj + */ + + if (*tail == '\0' && pathPrefix != NULL) { + /* + * An empty pattern. This means 'pathPrefix' is actually a full path + * of a file/directory we want to simply check for existence and type. + */ + + if (types == NULL) { + /* + * We just want to check for existence. In this case we make it + * easy on Tcl_FSMatchInDirectory and its sub-implementations by + * not bothering them (even though they should support this + * situation) and we just use the simple existence check with + * Tcl_FSAccess. + */ + + if (Tcl_FSAccess(pathPrefix, F_OK) == 0) { + Tcl_ListObjAppendElement(interp, filenamesObj, pathPrefix); + } result = TCL_OK; + } else { + /* + * We want to check for the correct type. Tcl_FSMatchInDirectory + * is documented to do this for us, if we give it a NULL pattern. + */ + + result = Tcl_FSMatchInDirectory(interp, filenamesObj, pathPrefix, + NULL, types); } } 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. - */ + result = DoGlob(interp, filenamesObj, separators, pathPrefix, + globFlags & TCL_GLOBMODE_DIR, tail, types); + } + + /* + * Check for errors... + */ + + if (result != TCL_OK) { + TclDecrRefCount(filenamesObj); + TclDecrRefCount(savedResultObj); + if (pathPrefix != NULL) { + Tcl_DecrRefCount(pathPrefix); + } + return result; + } + + /* + * 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 DoGlob, + * 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. + * + * We do it by rewriting the result list in-place. + */ + + if (globFlags & TCL_GLOBMODE_TAILS) { int objc, i; Tcl_Obj **objv; + int prefixLen; + const char *pre; + + /* + * If this length has never been set, set it here. + */ + + if (pathPrefix == NULL) { + Tcl_Panic("Called TclGlob with TCL_GLOBMODE_TAILS and pathPrefix==NULL"); + } - /* 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++; + pre = Tcl_GetStringFromObj(pathPrefix, &prefixLen); + if (prefixLen > 0 + && (strchr(separators, pre[prefixLen-1]) == NULL)) { + /* + * If we're on Windows and the prefix is a volume relative one + * like 'C:', then there won't be a path separator in between, so + * no need to skip it here. + */ + + if ((tclPlatform != TCL_PLATFORM_WINDOWS) || (prefixLen != 2) + || (pre[1] != ':')) { + prefixLen++; } } -#endif + + Tcl_ListObjGetElements(NULL, filenamesObj, &objc, &objv); 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] == '\0') + int len; + const char *oldStr = Tcl_GetStringFromObj(objv[i], &len); + Tcl_Obj *elem; + + if (len == prefixLen) { + if ((pattern[0] == '\0') || (strchr(separators, pattern[0]) == NULL)) { - elt = Tcl_NewStringObj(".",1); - } else { - elt = Tcl_NewStringObj("/",1); - } + TclNewLiteralStringObj(elem, "."); } else { - elt = Tcl_NewStringObj(oldStr + prefixLen, - len - prefixLen); + TclNewLiteralStringObj(elem, "/"); } } else { - elt = objv[i]; + elem = Tcl_NewStringObj(oldStr+prefixLen, len-prefixLen); } - /* Assumption that 'oldResult' is a valid list */ - Tcl_ListObjAppendElement(interp, oldResult, elt); + Tcl_ListObjReplace(interp, filenamesObj, i, 1, 1, &elem); } - Tcl_SetObjResult(interp, oldResult); } - /* - * Release our temporary copy. All code paths above must - * end here so we free our reference. + + /* + * Now we have a list of discovered filenames in filenamesObj and a list + * of previously discovered (saved earlier from the interpreter result) in + * savedResultObj. Merge them and put them back in the interpreter result. */ - Tcl_DecrRefCount(oldResult); - Tcl_DStringFree(&buffer); + + if (Tcl_IsShared(savedResultObj)) { + TclDecrRefCount(savedResultObj); + savedResultObj = Tcl_DuplicateObj(savedResultObj); + Tcl_IncrRefCount(savedResultObj); + } + if (Tcl_ListObjAppendList(interp, savedResultObj, filenamesObj) != TCL_OK){ + result = TCL_ERROR; + } else { + Tcl_SetObjResult(interp, savedResultObj); + } + TclDecrRefCount(savedResultObj); + TclDecrRefCount(filenamesObj); + if (pathPrefix != NULL) { + Tcl_DecrRefCount(pathPrefix); + } + return result; } @@ -2231,14 +2044,13 @@ TclGlob(interp, pattern, unquotedPrefix, globFlags, types) * * SkipToChar -- * - * This function traverses a glob pattern looking for the next - * unquoted occurance of the specified character at the same braces - * nesting level. + * 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. + * 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. @@ -2247,9 +2059,9 @@ TclGlob(interp, pattern, unquotedPrefix, globFlags, types) */ static int -SkipToChar(stringPtr, match) - char **stringPtr; /* Pointer string to check. */ - char *match; /* Pointer to character to find. */ +SkipToChar( + char **stringPtr, /* Pointer string to check. */ + int match) /* Character to find. */ { int quoted, level; register char *p; @@ -2262,7 +2074,7 @@ SkipToChar(stringPtr, match) quoted = 0; continue; } - if ((level == 0) && (*p == *match)) { + if ((level == 0) && (*p == match)) { *stringPtr = p; return 1; } @@ -2281,23 +2093,23 @@ SkipToChar(stringPtr, match) /* *---------------------------------------------------------------------- * - * TclDoGlob -- + * DoGlob -- * - * 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). + * 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 and the pattern. The directory and remainder are assumed to + * be native format paths. The prefix contained in 'pathPtr' is either a + * directory or path from which to start the search (or NULL). If pathPtr + * is NULL, then the pattern must not start with an absolute path + * specification (that case should be handled by moving the absolute path + * prefix into pathPtr before calling DoGlob). * * 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. + * 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 remaining + * arguments. After an error the result in interp will hold an error + * message. * * Side effects: * None. @@ -2305,163 +2117,98 @@ SkipToChar(stringPtr, match) *---------------------------------------------------------------------- */ -int -TclDoGlob(interp, separators, headPtr, tail, types) - Tcl_Interp *interp; /* Interpreter to use for error reporting +static int +DoGlob( + 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 + Tcl_Obj *matchesObj, /* Unshared list object in which to place all + * resulting filenames. Caller allocates and + * deallocates; DoGlob must not touch the + * refCount of this object. */ + const 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. */ + Tcl_Obj *pathPtr, /* Completely expanded prefix. */ + int flags, /* If non-zero then pathPtr is a directory */ + char *pattern, /* The pattern to match against. 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]; - } + char *name, *p, *openBrace, *closeBrace, *firstSpecialChar; + Tcl_Obj *joinedPtr; /* - * Consume any leading directory separators, leaving tail pointing - * just past the last initial separator. + * Consume any leading directory separators, leaving pattern pointing just + * past the last initial separator. */ count = 0; - name = tail; - for (; *tail != '\0'; tail++) { - if (*tail == '\\') { - /* + name = pattern; + for (; *pattern != '\0'; pattern++) { + if (*pattern == '\\') { + /* * 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. + * separator, or we have any other character. In the latter case + * the rest 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++; + + if (strchr(separators, pattern[1]) != NULL) { + pattern++; } else { break; } - } else if (strchr(separators, *tail) == NULL) { + } else if (strchr(separators, *pattern) == 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 != '\0') - && (((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 != '\0') - && (((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. + * 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 != '\0'; p++) { + for (p = pattern; *p != '\0'; p++) { if (quoted) { quoted = 0; + } else if (*p == '\\') { quoted = 1; if (strchr(separators, p[1]) != NULL) { - break; /* Quoted directory separator. */ + /* + * Quoted directory separator. + */ + break; } + } else if (strchr(separators, *p) != NULL) { - break; /* Unquoted directory separator. */ + /* + * Unquoted directory separator. + */ + break; + } else if (*p == '{') { openBrace = p; p++; - if (SkipToChar(&p, "}")) { - closeBrace = p; /* Balanced braces. */ + if (SkipToChar(&p, '}')) { + /* + * Balanced braces. + */ + + closeBrace = p; 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); @@ -2476,28 +2223,27 @@ TclDoGlob(interp, separators, headPtr, tail, types) 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. + * 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 DoGlob. */ - Tcl_DStringAppend(&newName, tail, openBrace-tail); + Tcl_DStringAppend(&newName, pattern, openBrace-pattern); baseLength = Tcl_DStringLength(&newName); - length = Tcl_DStringLength(headPtr); *closeBrace = '\0'; for (p = openBrace; p != closeBrace; ) { p++; element = p; - SkipToChar(&p, ","); - Tcl_DStringSetLength(headPtr, length); + SkipToChar(&p, ','); 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); + result = DoGlob(interp, matchesObj, separators, pathPtr, flags, + Tcl_DStringValue(&newName), types); if (result != TCL_OK) { break; } @@ -2508,265 +2254,266 @@ TclDoGlob(interp, separators, headPtr, tail, types) } /* - * 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. + * 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 + * pattern if p is pointing at the end of the string. + * + * If we find any globbing characters, then we must call + * Tcl_FSMatchInDirectory. If we're at the end of the string, then that's + * all we need to do. If we're not at the end of the string, then we must + * recurse, so we do that below. + * + * Alternatively, if there are no globbing characters then again there are + * two cases. If we're at the end of the string, we just need to check for + * the given path's existence and type. If we're not at the end of the + * string, we recurse. */ if (*p != '\0') { + char savedChar = *p; /* - * Note that we are modifying the string in place. This won't work - * if the string is a static. + * Note that we are modifying the string in place. This won't work if + * the string is a static. */ - savedChar = *p; *p = '\0'; - firstSpecialChar = strpbrk(tail, "*[]?\\"); + firstSpecialChar = strpbrk(pattern, "*[]?\\"); *p = savedChar; } else { - firstSpecialChar = strpbrk(tail, "*[]?\\"); + firstSpecialChar = strpbrk(pattern, "*[]?\\"); } 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. + * Look for matching files in the given directory. The implementation + * of this function is filesystem specific. For each file that + * matches, it will add the match onto the resultPtr given. */ + + static Tcl_GlobTypeData dirOnly = { + TCL_GLOB_TYPE_DIR, 0, NULL, NULL + }; + char save = *p; + Tcl_Obj *subdirsPtr; + if (*p == '\0') { - 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 = '\0'; - ret = Tcl_FSMatchInDirectory(interp, resultPtr, - head, tail, &dirOnly); - *p = save; - if (ret == TCL_OK) { - int resLength, repair = -1; - 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(NULL, resultPtr, i, &elt); - Tcl_DStringInit(&ds); - if (Tcl_GetString(elt)[0] == '~') { - Tcl_Obj *paths = Tcl_GetObjResult(interp); - - Tcl_ListObjLength(NULL, paths, &repair); - Tcl_DStringAppend(&ds, "./", 2); - } - 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; - } - if (repair >= 0) { - Tcl_Obj *paths = Tcl_GetObjResult(interp); - int end; - - Tcl_ListObjLength(NULL, paths, &end); - while (repair < end) { - CONST char *bytes; - int numBytes; - Tcl_Obj *fixme, *newObj; - Tcl_ListObjIndex(NULL, paths, repair, &fixme); - bytes = Tcl_GetStringFromObj(fixme, &numBytes); - newObj = Tcl_NewStringObj(bytes+2, numBytes-2); - Tcl_ListObjReplace(NULL, paths, repair, 1, - 1, &newObj); - repair++; - } - repair = -1; - } + return Tcl_FSMatchInDirectory(interp, matchesObj, pathPtr, + pattern, types); + } + + /* + * We do the recursion ourselves. This makes implementing + * Tcl_FSMatchInDirectory for each filesystem much easier. + */ + + *p = '\0'; + TclNewObj(subdirsPtr); + Tcl_IncrRefCount(subdirsPtr); + result = Tcl_FSMatchInDirectory(interp, subdirsPtr, pathPtr, + pattern, &dirOnly); + *p = save; + if (result == TCL_OK) { + int subdirc, i, repair = -1; + Tcl_Obj **subdirv; + + result = Tcl_ListObjGetElements(interp, subdirsPtr, + &subdirc, &subdirv); + for (i=0; result==TCL_OK && i<subdirc; i++) { + Tcl_Obj *copy = NULL; + + if (pathPtr == NULL && Tcl_GetString(subdirv[i])[0] == '~') { + Tcl_ListObjLength(NULL, matchesObj, &repair); + copy = subdirv[i]; + subdirv[i] = Tcl_NewStringObj("./", 2); + Tcl_AppendObjToObj(subdirv[i], copy); + Tcl_IncrRefCount(subdirv[i]); + } + result = DoGlob(interp, matchesObj, separators, subdirv[i], + 1, p+1, types); + if (copy) { + int end; + + Tcl_DecrRefCount(subdirv[i]); + subdirv[i] = copy; + Tcl_ListObjLength(NULL, matchesObj, &end); + while (repair < end) { + const char *bytes; + int numBytes; + Tcl_Obj *fixme, *newObj; + + Tcl_ListObjIndex(NULL, matchesObj, repair, &fixme); + bytes = Tcl_GetStringFromObj(fixme, &numBytes); + newObj = Tcl_NewStringObj(bytes+2, numBytes-2); + Tcl_ListObjReplace(NULL, matchesObj, repair, 1, + 1, &newObj); + repair++; } + repair = -1; } } - Tcl_DecrRefCount(resultPtr); } - Tcl_DecrRefCount(head); - return ret; + TclDecrRefCount(subdirsPtr); + return result; } - Tcl_DStringAppend(headPtr, tail, p-tail); - if (*p != '\0') { - return TclDoGlob(interp, separators, headPtr, p, types); - } else { + + /* + * We reach here with no pattern char in current section + */ + + if (*p == '\0') { + int length; + Tcl_DString append; + /* * 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). + * There are no more wildcards in the pattern and no more unprocessed + * characters in the pattern, 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; + Tcl_DStringInit(&append); + Tcl_DStringAppend(&append, pattern, p-pattern); + + if (pathPtr != NULL) { + (void) Tcl_GetStringFromObj(pathPtr, &length); + } else { + length = 0; + } 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); - } - } - /* - * 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 != '\0'; p++) { - if (*p == '\\') { - *p = '/'; - } + case TCL_PLATFORM_WINDOWS: + if (length == 0 && (Tcl_DStringLength(&append) == 0)) { + if (((*name == '\\') && (name[1] == '/' || + name[1] == '\\')) || (*name == '/')) { + Tcl_DStringAppend(&append, "/", 1); + } else { + Tcl_DStringAppend(&append, ".", 1); } - 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; + + case TCL_PLATFORM_UNIX: + if (length == 0 && (Tcl_DStringLength(&append) == 0)) { + if ((*name == '\\' && name[1] == '/') || (*name == '/')) { + Tcl_DStringAppend(&append, "/", 1); + } else { + Tcl_DStringAppend(&append, ".", 1); } - break; } + break; } - /* Common for all platforms */ - name = Tcl_DStringValue(headPtr); - nameObj = Tcl_NewStringObj(name, Tcl_DStringLength(headPtr)); - Tcl_IncrRefCount(nameObj); - result = Tcl_FSMatchInDirectory(interp, Tcl_GetObjResult(interp), - nameObj, NULL, types); - Tcl_DecrRefCount(nameObj); - return result; - } -} + /* + * Common for all platforms. + */ - -/* - *--------------------------------------------------------------------------- - * - * 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. - * - *--------------------------------------------------------------------------- - */ + if (pathPtr == NULL) { + joinedPtr = Tcl_NewStringObj(Tcl_DStringValue(&append), + Tcl_DStringLength(&append)); + } else if (flags) { + joinedPtr = TclNewFSPathObj(pathPtr, Tcl_DStringValue(&append), + Tcl_DStringLength(&append)); + } else { + joinedPtr = Tcl_DuplicateObj(pathPtr); + if (strchr(separators, Tcl_DStringValue(&append)[0]) == NULL) { + /* + * The current prefix must end in a separator. + */ -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; + int len; + const char *joined = Tcl_GetStringFromObj(joinedPtr,&len); + + if (strchr(separators, joined[len-1]) == NULL) { + Tcl_AppendToObj(joinedPtr, "/", 1); + } + } + Tcl_AppendToObj(joinedPtr, Tcl_DStringValue(&append), + Tcl_DStringLength(&append)); } - splitPtr = Tcl_FSSplitPath(splitPtr, &splitElements); + Tcl_IncrRefCount(joinedPtr); + Tcl_DStringFree(&append); + result = Tcl_FSMatchInDirectory(interp, matchesObj, joinedPtr, NULL, + types); + Tcl_DecrRefCount(joinedPtr); + return result; } /* - * 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 it's not the end of the string, we must recurse */ - 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); + if (pathPtr == NULL) { + joinedPtr = Tcl_NewStringObj(pattern, p-pattern); + } else if (flags) { + joinedPtr = TclNewFSPathObj(pathPtr, pattern, p-pattern); } else { - Tcl_ListObjIndex(NULL, splitPtr, 0, &splitResultPtr); + joinedPtr = Tcl_DuplicateObj(pathPtr); + if (strchr(separators, pattern[0]) == NULL) { + /* + * The current prefix must end in a separator, unless this is a + * volume-relative path. In particular globbing in Windows shares, + * when not using -dir or -path, e.g. 'glob [file join + * //machine/share/subdir *]' requires adding a separator here. + * This behaviour is not currently tested for in the test suite. + */ + + int len; + const char *joined = Tcl_GetStringFromObj(joinedPtr,&len); + + if (strchr(separators, joined[len-1]) == NULL) { + if (Tcl_FSGetPathType(pathPtr) != TCL_PATH_VOLUME_RELATIVE) { + Tcl_AppendToObj(joinedPtr, "/", 1); + } + } + } + Tcl_AppendToObj(joinedPtr, pattern, p-pattern); } - Tcl_IncrRefCount(splitResultPtr); - Tcl_DecrRefCount(splitPtr); - return splitResultPtr; + + Tcl_IncrRefCount(joinedPtr); + result = DoGlob(interp, matchesObj, separators, joinedPtr, 1, p, types); + Tcl_DecrRefCount(joinedPtr); + + return result; } /* *--------------------------------------------------------------------------- * - * Tcl_AllocStatBuf + * 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. + * 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(). + * A pointer to a Tcl_StatBuf which may be deallocated by being passed to + * ckfree(). * * Side effects: - * None. + * None. * *--------------------------------------------------------------------------- */ Tcl_StatBuf * -Tcl_AllocStatBuf() { +Tcl_AllocStatBuf(void) +{ return (Tcl_StatBuf *) ckalloc(sizeof(Tcl_StatBuf)); } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |