2 '\" Copyright (c) 1997 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 '\" SCCS: @(#) @(#) GetIndex.3 1.3 97/07/30 16:21:05
9 '\" The definitions below are for supplemental macros used in Tcl/Tk
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)
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.
25 '\" Start box enclosure. From here until next .BE, everything will be
26 '\" enclosed in one large box.
29 '\" End of box enclosure.
32 '\" Begin code excerpt.
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.
45 '\" End of vertical sidebar.
48 '\" Begin an indented unfilled display.
51 '\" End of indented unfilled display.
54 '\" Start of list of standard options for a Tk widget. The
55 '\" options follow on successive lines, in four columns separated
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.
70 '\" SCCS: @(#) man.macros 1.9 97/08/22 18:50:59
72 '\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
76 '\" # Start an argument description
80 . ie !"\\$2"" .TP \\n()Cu
85 \&\\$1 \\fI\\$2\\fP (\\$3)
98 '\" # define tabbing values for .AP
101 .if !"\\$1"" .nr )A \\w'\\$1'u+3n
104 .if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
105 .nr )C \\n()Bu+\\w'(in/out)'u+2n
107 .AS Tcl_Interp Tcl_CreateInterp in/out
108 '\" # BS - start boxed text
109 '\" # ^y = starting y location
117 .if n \l'\\n(.lu\(ul'
120 '\" # BE - end boxed text (draw box now)
125 .ie n \l'\\n(^lu\(ul'
127 .\" Draw four-sided box normally, but don't draw top of
128 .\" box if the box started on an earlier page.
130 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
133 \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
140 '\" # VS - start vertical sidebar
141 '\" # ^Y = starting y location
142 '\" # ^v = 1 (for troff; for nroff this doesn't matter)
146 .ie n 'mc \s12\(br\s0
149 '\" # VE - end of vertical sidebar
157 \h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
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.
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
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
193 '\" # DS - begin display
199 '\" # DE - end display
205 '\" # SO - start of list of standard options
207 .SH "STANDARD OPTIONS"
213 '\" # SE - end of list of standard options
218 See the \\fBoptions\\fR manual entry for details on the standard options.
220 '\" # OP - start of full description for a single option
225 Command-Line Name: \\fB\\$1\\fR
226 Database Name: \\fB\\$2\\fR
227 Database Class: \\fB\\$3\\fR
231 '\" # CS - begin code excerpt
237 '\" # CE - end code excerpt
245 .TH Tcl_GetIndexFromObj 3 8.0 Tcl "Tcl Library Procedures"
248 Tcl_GetIndexFromObj \- lookup string in table of keywords
251 \fB#include <tcl.h>\fR
254 \fBTcl_GetIndexFromObj\fR(\fIinterp, objPtr, tablePtr, msg, flags, indexPtr\fR)
256 .AS Tcl_Interp **tablePtr
257 .AP Tcl_Interp *interp in
258 Interpreter to use for error reporting; if NULL, then no message is
260 .AP Tcl_Obj *objPtr in/out
261 The string value of this object is used to search through \fItablePtr\fR.
262 The internal representation is modified to hold the index of the matching
264 .AP char **tablePtr in
265 An array of null-terminated strings. The end of the array is marked
266 by a NULL string pointer.
268 Null-terminated string describing what is being looked up, such as
269 \fBoption\fR. This string is included in error messages.
271 OR-ed combination of bits providing additional information for
272 operation. The only bit that is currently defined is \fBTCL_EXACT\fR.
273 .AP int *indexPtr out
274 The index of the string in \fItablePtr\fR that matches the value of
275 \fIobjPtr\fR is returned here.
280 This procedure provides an efficient way for looking up keywords,
281 switch names, option names, and similar things where the value of
282 an object must be one of a predefined set of values.
283 \fIObjPtr\fR is compared against each of
284 the strings in \fItablePtr\fR to find a match. A match occurs if
285 \fIobjPtr\fR's string value is identical to one of the strings in
286 \fItablePtr\fR, or if it is a unique abbreviation
287 for exactly one of the strings in \fItablePtr\fR and the
288 \fBTCL_EXACT\fR flag was not specified; in either case
289 the index of the matching entry is stored at \fI*indexPtr\fR
290 and TCL_OK is returned.
292 If there is no matching entry,
293 TCL_ERROR is returned and an error message is left in \fIinterp\fR's
294 result if \fIinterp\fR isn't NULL. \fIMsg\fR is included in the
295 error message to indicate what was being looked up. For example,
296 if \fImsg\fR is \fBoption\fR the error message will have a form like
297 \fBbad option "firt": must be first, second, or third\fR.
299 If \fBTcl_GetIndexFromObj\fR completes successfully it modifies the
300 internal representation of \fIobjPtr\fR to hold the address of
301 the table and the index of the matching entry. If \fBTcl_GetIndexFromObj\fR
302 is invoked again with the same \fIobjPtr\fR and \fItablePtr\fR
303 arguments (e.g. during a reinvocation of a Tcl command), it returns
304 the matching index immediately without having to redo the lookup
305 operation. Note: \fBTcl_GetIndexFromObj\fR assumes that the entries
306 in \fItablePtr\fR are static: they must not change between invocations.
312 index, object, table lookup