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1 '\"
2 '\" Copyright (c) 1993 The Regents of the University of California.
3 '\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
4 '\"
5 '\" See the file "license.terms" for information on usage and redistribution
6 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
7 '\"
8 '\" RCS: @(#) $Id: global.n,v 1.1 2003/12/20 03:31:54 bbbush Exp $
9 '\"
10 '\" The definitions below are for supplemental macros used in Tcl/Tk
11 '\" manual entries.
12 '\"
13 '\" .AP type name in/out ?indent?
14 '\" Start paragraph describing an argument to a library procedure.
15 '\" type is type of argument (int, etc.), in/out is either "in", "out",
16 '\" or "in/out" to describe whether procedure reads or modifies arg,
17 '\" and indent is equivalent to second arg of .IP (shouldn't ever be
18 '\" needed; use .AS below instead)
19 '\"
20 '\" .AS ?type? ?name?
21 '\" Give maximum sizes of arguments for setting tab stops. Type and
22 '\" name are examples of largest possible arguments that will be passed
23 '\" to .AP later. If args are omitted, default tab stops are used.
24 '\"
25 '\" .BS
26 '\" Start box enclosure. From here until next .BE, everything will be
27 '\" enclosed in one large box.
28 '\"
29 '\" .BE
30 '\" End of box enclosure.
31 '\"
32 '\" .CS
33 '\" Begin code excerpt.
34 '\"
35 '\" .CE
36 '\" End code excerpt.
37 '\"
38 '\" .VS ?version? ?br?
39 '\" Begin vertical sidebar, for use in marking newly-changed parts
40 '\" of man pages. The first argument is ignored and used for recording
41 '\" the version when the .VS was added, so that the sidebars can be
42 '\" found and removed when they reach a certain age. If another argument
43 '\" is present, then a line break is forced before starting the sidebar.
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45 '\" .VE
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47 '\"
48 '\" .DS
49 '\" Begin an indented unfilled display.
50 '\"
51 '\" .DE
52 '\" End of indented unfilled display.
53 '\"
54 '\" .SO
55 '\" Start of list of standard options for a Tk widget. The
56 '\" options follow on successive lines, in four columns separated
57 '\" by tabs.
58 '\"
59 '\" .SE
60 '\" End of list of standard options for a Tk widget.
61 '\"
62 '\" .OP cmdName dbName dbClass
63 '\" Start of description of a specific option. cmdName gives the
64 '\" option's name as specified in the class command, dbName gives
65 '\" the option's name in the option database, and dbClass gives
66 '\" the option's class in the option database.
67 '\"
68 '\" .UL arg1 arg2
69 '\" Print arg1 underlined, then print arg2 normally.
70 '\"
71 '\" RCS: @(#) $Id: global.n,v 1.1 2003/12/20 03:31:54 bbbush Exp $
72 '\"
73 '\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
74 .if t .wh -1.3i ^B
75 .nr ^l \n(.l
76 .ad b
77 '\" # Start an argument description
78 .de AP
79 .ie !"\\$4"" .TP \\$4
80 .el \{\
81 . ie !"\\$2"" .TP \\n()Cu
82 . el .TP 15
83 .\}
84 .ta \\n()Au \\n()Bu
85 .ie !"\\$3"" \{\
86 \&\\$1 \\fI\\$2\\fP (\\$3)
87 .\".b
88 .\}
89 .el \{\
90 .br
91 .ie !"\\$2"" \{\
92 \&\\$1 \\fI\\$2\\fP
93 .\}
94 .el \{\
95 \&\\fI\\$1\\fP
96 .\}
97 .\}
99 '\" # define tabbing values for .AP
100 .de AS
101 .nr )A 10n
102 .if !"\\$1"" .nr )A \\w'\\$1'u+3n
103 .nr )B \\n()Au+15n
105 .if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
106 .nr )C \\n()Bu+\\w'(in/out)'u+2n
108 .AS Tcl_Interp Tcl_CreateInterp in/out
109 '\" # BS - start boxed text
110 '\" # ^y = starting y location
111 '\" # ^b = 1
112 .de BS
114 .mk ^y
115 .nr ^b 1u
116 .if n .nf
117 .if n .ti 0
118 .if n \l'\\n(.lu\(ul'
119 .if n .fi
121 '\" # BE - end boxed text (draw box now)
122 .de BE
124 .ti 0
125 .mk ^t
126 .ie n \l'\\n(^lu\(ul'
127 .el \{\
128 .\" Draw four-sided box normally, but don't draw top of
129 .\" box if the box started on an earlier page.
130 .ie !\\n(^b-1 \{\
131 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
133 .el \}\
134 \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
139 .nr ^b 0
141 '\" # VS - start vertical sidebar
142 '\" # ^Y = starting y location
143 '\" # ^v = 1 (for troff; for nroff this doesn't matter)
144 .de VS
145 .if !"\\$2"" .br
146 .mk ^Y
147 .ie n 'mc \s12\(br\s0
148 .el .nr ^v 1u
150 '\" # VE - end of vertical sidebar
151 .de VE
152 .ie n 'mc
153 .el \{\
154 .ev 2
156 .ti 0
157 .mk ^t
158 \h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
159 .sp -1
163 .nr ^v 0
165 '\" # Special macro to handle page bottom: finish off current
166 '\" # box/sidebar if in box/sidebar mode, then invoked standard
167 '\" # page bottom macro.
168 .de ^B
169 .ev 2
170 'ti 0
172 .mk ^t
173 .if \\n(^b \{\
174 .\" Draw three-sided box if this is the box's first page,
175 .\" draw two sides but no top otherwise.
176 .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
177 .el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
179 .if \\n(^v \{\
180 .nr ^x \\n(^tu+1v-\\n(^Yu
181 \kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
186 .if \\n(^b \{\
187 .mk ^y
188 .nr ^b 2
190 .if \\n(^v \{\
191 .mk ^Y
194 '\" # DS - begin display
195 .de DS
200 '\" # DE - end display
201 .de DE
206 '\" # SO - start of list of standard options
207 .de SO
208 .SH "STANDARD OPTIONS"
211 .ta 5.5c 11c
212 .ft B
214 '\" # SE - end of list of standard options
215 .de SE
217 .ft R
219 See the \\fBoptions\\fR manual entry for details on the standard options.
221 '\" # OP - start of full description for a single option
222 .de OP
225 .ta 4c
226 Command-Line Name: \\fB\\$1\\fR
227 Database Name: \\fB\\$2\\fR
228 Database Class: \\fB\\$3\\fR
232 '\" # CS - begin code excerpt
233 .de CS
236 .ta .25i .5i .75i 1i
238 '\" # CE - end code excerpt
239 .de CE
243 .de UL
244 \\$1\l'|0\(ul'\\$2
246 .TH global n "" Tcl "Tcl Built-In Commands"
248 '\" Note: do not modify the .SH NAME line immediately below!
249 .SH NAME
250 global \- Access global variables
251 .SH SYNOPSIS
252 \fBglobal \fIvarname \fR?\fIvarname ...\fR?
255 .SH DESCRIPTION
257 This command is ignored unless a Tcl procedure is being interpreted.
258 If so then it declares the given \fIvarname\fR's to be global variables
259 rather than local ones.
260 Global variables are variables in the global namespace.
261 For the duration of the current procedure
262 (and only while executing in the current procedure),
263 any reference to any of the \fIvarname\fRs
264 will refer to the global variable by the same name.
266 Please note that this is done by creating local variables that are
267 linked to the global variables, and therefore that these variables
268 will be listed by \fBinfo locals\fR like all other local variables.
270 .SH "SEE ALSO"
271 namespace(n), upvar(n), variable(n)
273 .SH KEYWORDS
274 global, namespace, procedure, variable