[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / man / man3 / Tcl_PkgPresentEx.3

'\"
'\" Copyright (c) 1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" RCS: @(#) $Id: PkgRequire.3,v 1.6 2002/02/26 02:22:20 hobbs Exp $
'\" 
'\" The definitions below are for supplemental macros used in Tcl/Tk
'\" manual entries.
'\"
'\" .AP type name in/out ?indent?
'\"	Start paragraph describing an argument to a library procedure.
'\"	type is type of argument (int, etc.), in/out is either "in", "out",
'\"	or "in/out" to describe whether procedure reads or modifies arg,
'\"	and indent is equivalent to second arg of .IP (shouldn't ever be
'\"	needed;  use .AS below instead)
'\"
'\" .AS ?type? ?name?
'\"	Give maximum sizes of arguments for setting tab stops.  Type and
'\"	name are examples of largest possible arguments that will be passed
'\"	to .AP later.  If args are omitted, default tab stops are used.
'\"
'\" .BS
'\"	Start box enclosure.  From here until next .BE, everything will be
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'\" .SO
'\"	Start of list of standard options for a Tk widget.  The
'\"	options follow on successive lines, in four columns separated
'\"	by tabs.
'\"
'\" .SE
'\"	End of list of standard options for a Tk widget.
'\"
'\" .OP cmdName dbName dbClass
'\"	Start of description of a specific option.  cmdName gives the
'\"	option's name as specified in the class command, dbName gives
'\"	the option's name in the option database, and dbClass gives
'\"	the option's class in the option database.
'\"
'\" .UL arg1 arg2
'\"	Print arg1 underlined, then print arg2 normally.
'\"
'\" RCS: @(#) $Id: man.macros,v 1.4 2000/08/25 06:18:32 ericm Exp $
'\"
'\"	# Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
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.de AP
.ie !"\\$4"" .TP \\$4
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.   ie !"\\$2"" .TP \\n()Cu
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\&\\$1	\\fI\\$2\\fP	(\\$3)
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.AS Tcl_Interp Tcl_CreateInterp in/out
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.\}
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\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
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.LP
See the \\fBoptions\\fR manual entry for details on the standard options.
..
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.de OP
.LP
.nf
.ta 4c
Command-Line Name:	\\fB\\$1\\fR
Database Name:	\\fB\\$2\\fR
Database Class:	\\fB\\$3\\fR
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.TH Tcl_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
.BS
.SH NAME
Tcl_PkgRequire, Tcl_PkgRequireEx, Tcl_PkgPresent, Tcl_PkgPresentEx, Tcl_PkgProvide, Tcl_PkgProvideEx \- package version control
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
.sp
CONST char *
\fBTcl_PkgRequire\fR(\fIinterp, name, version, exact\fR)
.sp
CONST char *
\fBTcl_PkgRequireEx\fR(\fIinterp, name, version, exact, clientDataPtr\fR)
.sp
CONST char *
\fBTcl_PkgPresent\fR(\fIinterp, name, version, exact\fR)
.sp
CONST char *
\fBTcl_PkgPresentEx\fR(\fIinterp, name, version, exact, clientDataPtr\fR)
.sp
int
\fBTcl_PkgProvide\fR(\fIinterp, name, version\fR)
.sp
int
\fBTcl_PkgProvideEx\fR(\fIinterp, name, version, clientData\fR)
.SH ARGUMENTS
.AS ClientData clientDataPtr
.AP Tcl_Interp *interp in
Interpreter where package is needed or available.
.AP "CONST char" *name in
Name of package.
.AP "CONST char" *version in
A version string consisting of one or more decimal numbers
separated by dots.
.AP int exact in
Non-zero means that only the particular version specified by
\fIversion\fR is acceptable.
Zero means that newer versions than \fIversion\fR are also
acceptable as long as they have the same major version number
as \fIversion\fR.
.AP ClientData clientData in
Arbitrary value to be associated with the package.
.AP ClientData *clientDataPtr out
Pointer to place to store the value associated with the matching
package. It is only changed if the pointer is not NULL and the
function completed successfully.
.BE

.SH DESCRIPTION
.PP
These procedures provide C-level interfaces to Tcl's package and
version management facilities.
.PP
\fBTcl_PkgRequire\fR is equivalent to the \fBpackage require\fR
command, \fBTcl_PkgPresent\fR is equivalent to the \fBpackage present\fR
command, and \fBTcl_PkgProvide\fR is equivalent to the
\fBpackage provide\fR command.
.PP
See the documentation for the Tcl commands for details on what these
procedures do.
.PP
If \fBTcl_PkgPresent\fR or \fBTcl_PkgRequire\fR complete successfully
they return a pointer to the version string for the version of the package
that is provided in the interpreter (which may be different than 
\fIversion\fR); if an error occurs they return NULL and leave an error 
message in the interpreter's result.
.PP
\fBTcl_PkgProvide\fR returns TCL_OK if it completes successfully;
if an error occurs it returns TCL_ERROR and leaves an error message
in the interpreter's result.
.PP
\fBTcl_PkgProvideEx\fR, \fBTcl_PkgPresentEx\fR and \fBTcl_PkgRequireEx\fR
allow the setting and retrieving of the client data associated with
the package. In all other respects they are equivalent to the matching
functions.

.SH KEYWORDS
package, present, provide, require, version
Commit	Line	Data
920dae64 AT	1	'\"
	2	'\" Copyright (c) 1996 Sun Microsystems, Inc.
	3	'\"
	4	'\" See the file "license.terms" for information on usage and redistribution
	5	'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
	6	'\"
	7	'\" RCS: @(#) $Id: PkgRequire.3,v 1.6 2002/02/26 02:22:20 hobbs Exp $
	8	'\"
	9	'\" The definitions below are for supplemental macros used in Tcl/Tk
	10	'\" manual entries.
	11	'\"
	12	'\" .AP type name in/out ?indent?
	13	'\" Start paragraph describing an argument to a library procedure.
	14	'\" type is type of argument (int, etc.), in/out is either "in", "out",
	15	'\" or "in/out" to describe whether procedure reads or modifies arg,
	16	'\" and indent is equivalent to second arg of .IP (shouldn't ever be
	17	'\" needed; use .AS below instead)
	18	'\"
	19	'\" .AS ?type? ?name?
	20	'\" Give maximum sizes of arguments for setting tab stops. Type and
	21	'\" name are examples of largest possible arguments that will be passed
	22	'\" to .AP later. If args are omitted, default tab stops are used.
	23	'\"
	24	'\" .BS
	25	'\" Start box enclosure. From here until next .BE, everything will be
	26	'\" enclosed in one large box.
	27	'\"
	28	'\" .BE
	29	'\" End of box enclosure.
	30	'\"
	31	'\" .CS
	32	'\" Begin code excerpt.
	33	'\"
	34	'\" .CE
	35	'\" End code excerpt.
	36	'\"
	37	'\" .VS ?version? ?br?
	38	'\" Begin vertical sidebar, for use in marking newly-changed parts
	39	'\" of man pages. The first argument is ignored and used for recording
	40	'\" the version when the .VS was added, so that the sidebars can be
	41	'\" found and removed when they reach a certain age. If another argument
	42	'\" is present, then a line break is forced before starting the sidebar.
	43	'\"
	44	'\" .VE
	45	'\" End of vertical sidebar.
	46	'\"
	47	'\" .DS
	48	'\" Begin an indented unfilled display.
	49	'\"
	50	'\" .DE
	51	'\" End of indented unfilled display.
	52	'\"
	53	'\" .SO
	54	'\" Start of list of standard options for a Tk widget. The
	55	'\" options follow on successive lines, in four columns separated
	56	'\" by tabs.
	57	'\"
	58	'\" .SE
	59	'\" End of list of standard options for a Tk widget.
	60	'\"
	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.
66	'\"
67	'\" .UL arg1 arg2
68	'\" Print arg1 underlined, then print arg2 normally.
69	'\"
70	'\" RCS: @(#) $Id: man.macros,v 1.4 2000/08/25 06:18:32 ericm Exp $
71	'\"
72	'\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
73	.if t .wh -1.3i ^B
74	.nr ^l \n(.l
75	.ad b
76	'\" # Start an argument description
77	.de AP
78	.ie !"\\$4"" .TP \\$4
79	.el \{\
80	. ie !"\\$2"" .TP \\n()Cu
81	. el .TP 15
82	.\}
83	.ta \\n()Au \\n()Bu
84	.ie !"\\$3"" \{\
85	\&\\$1 \\fI\\$2\\fP (\\$3)
86	.\".b
87	.\}
88	.el \{\
89	.br
90	.ie !"\\$2"" \{\
91	\&\\$1 \\fI\\$2\\fP
92	.\}
93	.el \{\
94	\&\\fI\\$1\\fP
95	.\}
96	.\}
97	..
98	'\" # define tabbing values for .AP
99	.de AS
100	.nr )A 10n
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103	.\"
104	.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
105	.nr )C \\n()Bu+\\w'(in/out)'u+2n
106	..
107	.AS Tcl_Interp Tcl_CreateInterp in/out
108	'\" # BS - start boxed text
109	'\" # ^y = starting y location
110	'\" # ^b = 1
111	.de BS
112	.br
113	.mk ^y
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116	.if n .ti 0
117	.if n \l'\\n(.lu\(ul'
118	.if n .fi
119	..
120	'\" # BE - end boxed text (draw box now)
121	.de BE
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126	.el \{\
127	.\" Draw four-sided box normally, but don't draw top of
128	.\" box if the box started on an earlier page.
129	.ie !\\n(^b-1 \{\
130	\h'-1.5n'\L'\|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'\|0u-1.5n\(ul'
131	.\}
132	.el \}\
133	\h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'\|0u-1.5n\(ul'
134	.\}
135	.\}
136	.fi
137	.br
138	.nr ^b 0
139	..
140	'\" # VS - start vertical sidebar
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142	'\" # ^v = 1 (for troff; for nroff this doesn't matter)
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144	.if !"\\$2"" .br
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147	.el .nr ^v 1u
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149	'\" # VE - end of vertical sidebar
150	.de VE
151	.ie n 'mc
152	.el \{\
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156	.mk ^t
157	\h'\|\\n(^lu+3n'\L'\|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-\|\\n(^lu+3n'
158	.sp -1
159	.fi
160	.ev
161	.\}
162	.nr ^v 0
163	..
164	'\" # Special macro to handle page bottom: finish off current
165	'\" # box/sidebar if in box/sidebar mode, then invoked standard
166	'\" # page bottom macro.
167	.de ^B
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169	'ti 0
170	'nf
171	.mk ^t
172	.if \\n(^b \{\
173	.\" Draw three-sided box if this is the box's first page,
174	.\" draw two sides but no top otherwise.
175	.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
176	.el \h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'\|0u'\c
177	.\}
178	.if \\n(^v \{\
179	.nr ^x \\n(^tu+1v-\\n(^Yu
180	\kx\h'-\\nxu'\h'\|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'\|0u'\c
181	.\}
182	.bp
183	'fi
184	.ev
185	.if \\n(^b \{\
186	.mk ^y
187	.nr ^b 2
188	.\}
189	.if \\n(^v \{\
190	.mk ^Y
191	.\}
192	..
193	'\" # DS - begin display
194	.de DS
195	.RS
196	.nf
197	.sp
198	..
199	'\" # DE - end display
200	.de DE
201	.fi
202	.RE
203	.sp
204	..
205	'\" # SO - start of list of standard options
206	.de SO
207	.SH "STANDARD OPTIONS"
208	.LP
209	.nf
210	.ta 5.5c 11c
211	.ft B
212	..
213	'\" # SE - end of list of standard options
214	.de SE
215	.fi
216	.ft R
217	.LP
218	See the \\fBoptions\\fR manual entry for details on the standard options.
219	..
220	'\" # OP - start of full description for a single option
221	.de OP
222	.LP
223	.nf
224	.ta 4c
225	Command-Line Name: \\fB\\$1\\fR
226	Database Name: \\fB\\$2\\fR
227	Database Class: \\fB\\$3\\fR
228	.fi
229	.IP
230	..
231	'\" # CS - begin code excerpt
232	.de CS
233	.RS
234	.nf
235	.ta .25i .5i .75i 1i
236	..
237	'\" # CE - end code excerpt
238	.de CE
239	.fi
240	.RE
241	..
242	.de UL
243	\\$1\l'\|0\(ul'\\$2
244	..
245	.TH Tcl_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
246	.BS
247	.SH NAME
248	Tcl_PkgRequire, Tcl_PkgRequireEx, Tcl_PkgPresent, Tcl_PkgPresentEx, Tcl_PkgProvide, Tcl_PkgProvideEx \- package version control
249	.SH SYNOPSIS
250	.nf
251	\fB#include <tcl.h>\fR
252	.sp
253	CONST char *
254	\fBTcl_PkgRequire\fR(\fIinterp, name, version, exact\fR)
255	.sp
256	CONST char *
257	\fBTcl_PkgRequireEx\fR(\fIinterp, name, version, exact, clientDataPtr\fR)
258	.sp
259	CONST char *
260	\fBTcl_PkgPresent\fR(\fIinterp, name, version, exact\fR)
261	.sp
262	CONST char *
263	\fBTcl_PkgPresentEx\fR(\fIinterp, name, version, exact, clientDataPtr\fR)
264	.sp
265	int
266	\fBTcl_PkgProvide\fR(\fIinterp, name, version\fR)
267	.sp
268	int
269	\fBTcl_PkgProvideEx\fR(\fIinterp, name, version, clientData\fR)
270	.SH ARGUMENTS
271	.AS ClientData clientDataPtr
272	.AP Tcl_Interp *interp in
273	Interpreter where package is needed or available.
274	.AP "CONST char" *name in
275	Name of package.
276	.AP "CONST char" *version in
277	A version string consisting of one or more decimal numbers
278	separated by dots.
279	.AP int exact in
280	Non-zero means that only the particular version specified by
281	\fIversion\fR is acceptable.
282	Zero means that newer versions than \fIversion\fR are also
283	acceptable as long as they have the same major version number
284	as \fIversion\fR.
285	.AP ClientData clientData in
286	Arbitrary value to be associated with the package.
287	.AP ClientData *clientDataPtr out
288	Pointer to place to store the value associated with the matching
289	package. It is only changed if the pointer is not NULL and the
290	function completed successfully.
291	.BE
292
293	.SH DESCRIPTION
294	.PP
295	These procedures provide C-level interfaces to Tcl's package and
296	version management facilities.
297	.PP
298	\fBTcl_PkgRequire\fR is equivalent to the \fBpackage require\fR
299	command, \fBTcl_PkgPresent\fR is equivalent to the \fBpackage present\fR
300	command, and \fBTcl_PkgProvide\fR is equivalent to the
301	\fBpackage provide\fR command.
302	.PP
303	See the documentation for the Tcl commands for details on what these
304	procedures do.
305	.PP
306	If \fBTcl_PkgPresent\fR or \fBTcl_PkgRequire\fR complete successfully
307	they return a pointer to the version string for the version of the package
308	that is provided in the interpreter (which may be different than
309	\fIversion\fR); if an error occurs they return NULL and leave an error
310	message in the interpreter's result.
311	.PP
312	\fBTcl_PkgProvide\fR returns TCL_OK if it completes successfully;
313	if an error occurs it returns TCL_ERROR and leaves an error message
314	in the interpreter's result.
315	.PP
316	\fBTcl_PkgProvideEx\fR, \fBTcl_PkgPresentEx\fR and \fBTcl_PkgRequireEx\fR
317	allow the setting and retrieving of the client data associated with
318	the package. In all other respects they are equivalent to the matching
319	functions.
320
321	.SH KEYWORDS
322	package, present, provide, require, version