2 '\" Copyright (c) 1996 Sun Microsystems, Inc.
4 '\" See the file "license.terms" for information on usage and redistribution
5 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
7 .TH Tcl_SplitPath 3 7.5 Tcl "Tcl Library Procedures"
8 .\" The -*- nroff -*- definitions below are for supplemental macros used
9 .\" in Tcl/Tk manual entries.
11 .\" .AP type name in/out ?indent?
12 .\" Start paragraph describing an argument to a library procedure.
13 .\" type is type of argument (int, etc.), in/out is either "in", "out",
14 .\" or "in/out" to describe whether procedure reads or modifies arg,
15 .\" and indent is equivalent to second arg of .IP (shouldn't ever be
16 .\" needed; use .AS below instead)
19 .\" Give maximum sizes of arguments for setting tab stops. Type and
20 .\" name are examples of largest possible arguments that will be passed
21 .\" to .AP later. If args are omitted, default tab stops are used.
24 .\" Start box enclosure. From here until next .BE, everything will be
25 .\" enclosed in one large box.
28 .\" End of box enclosure.
31 .\" Begin code excerpt.
36 .\" .VS ?version? ?br?
37 .\" Begin vertical sidebar, for use in marking newly-changed parts
38 .\" of man pages. The first argument is ignored and used for recording
39 .\" the version when the .VS was added, so that the sidebars can be
40 .\" found and removed when they reach a certain age. If another argument
41 .\" is present, then a line break is forced before starting the sidebar.
44 .\" End of vertical sidebar.
47 .\" Begin an indented unfilled display.
50 .\" End of indented unfilled display.
53 .\" Start of list of standard options for a Tk widget. The manpage
54 .\" argument defines where to look up the standard options; if
55 .\" omitted, defaults to "options". The options follow on successive
56 .\" lines, in three columns separated by tabs.
59 .\" End of list of standard options for a Tk widget.
61 .\" .OP cmdName dbName dbClass
62 .\" Start of description of a specific option. cmdName gives the
63 .\" option's name as specified in the class command, dbName gives
64 .\" the option's name in the option database, and dbClass gives
65 .\" the option's class in the option database.
68 .\" Print arg1 underlined, then print arg2 normally.
71 .\" Print arg1 in quotes, then arg2 normally (for trailing punctuation).
74 .\" Print an open parenthesis, arg1 in quotes, then arg2 normally
75 .\" (for trailing punctuation) and then a closing parenthesis.
77 .\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
81 .\" # Start an argument description
85 . ie !"\\$2"" .TP \\n()Cu
90 \&\\$1 \\fI\\$2\\fP (\\$3)
103 .\" # define tabbing values for .AP
106 .if !"\\$1"" .nr )A \\w'\\$1'u+3n
109 .if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
110 .nr )C \\n()Bu+\\w'(in/out)'u+2n
112 .AS Tcl_Interp Tcl_CreateInterp in/out
113 .\" # BS - start boxed text
114 .\" # ^y = starting y location
122 .if n \l'\\n(.lu\(ul'
125 .\" # BE - end boxed text (draw box now)
130 .ie n \l'\\n(^lu\(ul'
132 .\" Draw four-sided box normally, but don't draw top of
133 .\" box if the box started on an earlier page.
135 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
138 \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
145 .\" # VS - start vertical sidebar
146 .\" # ^Y = starting y location
147 .\" # ^v = 1 (for troff; for nroff this doesn't matter)
151 .ie n 'mc \s12\(br\s0
154 .\" # VE - end of vertical sidebar
162 \h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
169 .\" # Special macro to handle page bottom: finish off current
170 .\" # box/sidebar if in box/sidebar mode, then invoked standard
171 .\" # page bottom macro.
178 .\" Draw three-sided box if this is the box's first page,
179 .\" draw two sides but no top otherwise.
180 .ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
181 .el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
184 .nr ^x \\n(^tu+1v-\\n(^Yu
185 \kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
198 .\" # DS - begin display
204 .\" # DE - end display
210 .\" # SO - start of list of standard options
212 'ie '\\$1'' .ds So \\fBoptions\\fR
213 'el .ds So \\fB\\$1\\fR
214 .SH "STANDARD OPTIONS"
220 .\" # SE - end of list of standard options
225 See the \\*(So manual entry for details on the standard options.
227 .\" # OP - start of full description for a single option
232 Command-Line Name: \\fB\\$1\\fR
233 Database Name: \\fB\\$2\\fR
234 Database Class: \\fB\\$3\\fR
238 .\" # CS - begin code excerpt
244 .\" # CE - end code excerpt
249 .\" # UL - underline word
253 .\" # QW - apply quotation marks to word
255 .ie '\\*(lq'"' ``\\$1''\\$2
256 .\"" fix emacs highlighting
257 .el \\*(lq\\$1\\*(rq\\$2
259 .\" # PQ - apply parens and quotation marks to word
261 .ie '\\*(lq'"' (``\\$1''\\$2)\\$3
262 .\"" fix emacs highlighting
263 .el (\\*(lq\\$1\\*(rq\\$2)\\$3
265 .\" # QR - quoted range
267 .ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3
268 .\"" fix emacs highlighting
269 .el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3
271 .\" # MT - "empty" string
277 Tcl_SplitPath, Tcl_JoinPath, Tcl_GetPathType \- manipulate platform-dependent file paths
280 \fB#include <tcl.h>\fR
282 \fBTcl_SplitPath\fR(\fIpath, argcPtr, argvPtr\fR)
285 \fBTcl_JoinPath\fR(\fIargc, argv, resultPtr\fR)
288 \fBTcl_GetPathType\fR(\fIpath\fR)
290 .AS "const char *const" ***argvPtr in/out
291 .AP "const char" *path in
292 File path in a form appropriate for the current platform (see the
293 \fBfilename\fR manual entry for acceptable forms for path names).
295 Filled in with number of path elements in \fIpath\fR.
296 .AP "const char" ***argvPtr out
297 \fI*argvPtr\fR will be filled in with the address of an array of
298 pointers to the strings that are the extracted elements of \fIpath\fR.
299 There will be \fI*argcPtr\fR valid entries in the array, followed by
302 Number of elements in \fIargv\fR.
303 .AP "const char *const" *argv in
304 Array of path elements to merge together into a single path.
305 .AP Tcl_DString *resultPtr in/out
306 A pointer to an initialized \fBTcl_DString\fR to which the result of
307 \fBTcl_JoinPath\fR will be appended.
312 These procedures have been superseded by the Tcl-value-aware procedures in
313 the \fBFileSystem\fR man page, which are more efficient.
315 These procedures may be used to disassemble and reassemble file
316 paths in a platform independent manner: they provide C-level access to
317 the same functionality as the \fBfile split\fR, \fBfile join\fR, and
318 \fBfile pathtype\fR commands.
320 \fBTcl_SplitPath\fR breaks a path into its constituent elements,
321 returning an array of pointers to the elements using \fIargcPtr\fR and
322 \fIargvPtr\fR. The area of memory pointed to by \fI*argvPtr\fR is
323 dynamically allocated; in addition to the array of pointers, it also
324 holds copies of all the path elements. It is the caller's
325 responsibility to free all of this storage.
326 For example, suppose that you have called \fBTcl_SplitPath\fR with the
334 Tcl_SplitPath(string, &argc, &argv);
337 Then you should eventually free the storage with a call like the
341 Tcl_Free((char *) argv);
344 \fBTcl_JoinPath\fR is the inverse of \fBTcl_SplitPath\fR: it takes a
345 collection of path elements given by \fIargc\fR and \fIargv\fR and
346 generates a result string that is a properly constructed path. The
347 result string is appended to \fIresultPtr\fR. \fIResultPtr\fR must
348 refer to an initialized \fBTcl_DString\fR.
350 If the result of \fBTcl_SplitPath\fR is passed to \fBTcl_JoinPath\fR,
351 the result will refer to the same location, but may not be in the same
352 form. This is because \fBTcl_SplitPath\fR and \fBTcl_JoinPath\fR
353 eliminate duplicate path separators and return a normalized form for
356 \fBTcl_GetPathType\fR returns the type of the specified \fIpath\fR,
357 where \fBTcl_PathType\fR is one of \fBTCL_PATH_ABSOLUTE\fR,
358 \fBTCL_PATH_RELATIVE\fR, or \fBTCL_PATH_VOLUME_RELATIVE\fR. See the
359 \fBfilename\fR manual entry for a description of the path types for
363 file, filename, join, path, split, type