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diff --git a/usr/man/mann/lset.n b/usr/man/mann/lset.n new file mode 100755 index 000000000..1916b6967 --- /dev/null +++ b/usr/man/mann/lset.n @@ -0,0 +1,394 @@ +'\" +'\" Copyright (c) 2001 by Kevin B. Kenny <kennykb@acm.org>. All rights reserved. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +.\" The -*- nroff -*- 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 +.\" enclosed in one large box. +.\" +.\" .BE +.\" End of box enclosure. +.\" +.\" .CS +.\" Begin code excerpt. +.\" +.\" .CE +.\" End code excerpt. +.\" +.\" .VS ?version? ?br? +.\" Begin vertical sidebar, for use in marking newly-changed parts +.\" of man pages. The first argument is ignored and used for recording +.\" the version when the .VS was added, so that the sidebars can be +.\" found and removed when they reach a certain age. If another argument +.\" is present, then a line break is forced before starting the sidebar. +.\" +.\" .VE +.\" End of vertical sidebar. +.\" +.\" .DS +.\" Begin an indented unfilled display. +.\" +.\" .DE +.\" End of indented unfilled display. +.\" +.\" .SO ?manpage? +.\" Start of list of standard options for a Tk widget. The manpage +.\" argument defines where to look up the standard options; if +.\" omitted, defaults to "options". The options follow on successive +.\" lines, in three 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. +.\" +.\" .QW arg1 ?arg2? +.\" Print arg1 in quotes, then arg2 normally (for trailing punctuation). +.\" +.\" .PQ arg1 ?arg2? +.\" Print an open parenthesis, arg1 in quotes, then arg2 normally +.\" (for trailing punctuation) and then a closing parenthesis. +.\" +.\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages. +.if t .wh -1.3i ^B +.nr ^l \n(.l +.ad b +.\" # Start an argument description +.de AP +.ie !"\\$4"" .TP \\$4 +.el \{\ +. ie !"\\$2"" .TP \\n()Cu +. el .TP 15 +.\} +.ta \\n()Au \\n()Bu +.ie !"\\$3"" \{\ +\&\\$1 \\fI\\$2\\fP (\\$3) +.\".b +.\} +.el \{\ +.br +.ie !"\\$2"" \{\ +\&\\$1 \\fI\\$2\\fP +.\} +.el \{\ +\&\\fI\\$1\\fP +.\} +.\} +.. +.\" # define tabbing values for .AP +.de AS +.nr )A 10n +.if !"\\$1"" .nr )A \\w'\\$1'u+3n +.nr )B \\n()Au+15n +.\" +.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n +.nr )C \\n()Bu+\\w'(in/out)'u+2n +.. +.AS Tcl_Interp Tcl_CreateInterp in/out +.\" # BS - start boxed text +.\" # ^y = starting y location +.\" # ^b = 1 +.de BS +.br +.mk ^y +.nr ^b 1u +.if n .nf +.if n .ti 0 +.if n \l'\\n(.lu\(ul' +.if n .fi +.. +.\" # BE - end boxed text (draw box now) +.de BE +.nf +.ti 0 +.mk ^t +.ie n \l'\\n(^lu\(ul' +.el \{\ +.\" Draw four-sided box normally, but don't draw top of +.\" box if the box started on an earlier page. +.ie !\\n(^b-1 \{\ +\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' +.\} +.el \}\ +\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' +.\} +.\} +.fi +.br +.nr ^b 0 +.. +.\" # VS - start vertical sidebar +.\" # ^Y = starting y location +.\" # ^v = 1 (for troff; for nroff this doesn't matter) +.de VS +.if !"\\$2"" .br +.mk ^Y +.ie n 'mc \s12\(br\s0 +.el .nr ^v 1u +.. +.\" # VE - end of vertical sidebar +.de VE +.ie n 'mc +.el \{\ +.ev 2 +.nf +.ti 0 +.mk ^t +\h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n' +.sp -1 +.fi +.ev +.\} +.nr ^v 0 +.. +.\" # Special macro to handle page bottom: finish off current +.\" # box/sidebar if in box/sidebar mode, then invoked standard +.\" # page bottom macro. +.de ^B +.ev 2 +'ti 0 +'nf +.mk ^t +.if \\n(^b \{\ +.\" Draw three-sided box if this is the box's first page, +.\" draw two sides but no top otherwise. +.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 +.el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c +.\} +.if \\n(^v \{\ +.nr ^x \\n(^tu+1v-\\n(^Yu +\kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c +.\} +.bp +'fi +.ev +.if \\n(^b \{\ +.mk ^y +.nr ^b 2 +.\} +.if \\n(^v \{\ +.mk ^Y +.\} +.. +.\" # DS - begin display +.de DS +.RS +.nf +.sp +.. +.\" # DE - end display +.de DE +.fi +.RE +.sp +.. +.\" # SO - start of list of standard options +.de SO +'ie '\\$1'' .ds So \\fBoptions\\fR +'el .ds So \\fB\\$1\\fR +.SH "STANDARD OPTIONS" +.LP +.nf +.ta 5.5c 11c +.ft B +.. +.\" # SE - end of list of standard options +.de SE +.fi +.ft R +.LP +See the \\*(So manual entry for details on the standard options. +.. +.\" # OP - start of full description for a single option +.de OP +.LP +.nf +.ta 4c +Command-Line Name: \\fB\\$1\\fR +Database Name: \\fB\\$2\\fR +Database Class: \\fB\\$3\\fR +.fi +.IP +.. +.\" # CS - begin code excerpt +.de CS +.RS +.nf +.ta .25i .5i .75i 1i +.. +.\" # CE - end code excerpt +.de CE +.fi +.RE +.. +.\" # UL - underline word +.de UL +\\$1\l'|0\(ul'\\$2 +.. +.\" # QW - apply quotation marks to word +.de QW +.ie '\\*(lq'"' ``\\$1''\\$2 +.\"" fix emacs highlighting +.el \\*(lq\\$1\\*(rq\\$2 +.. +.\" # PQ - apply parens and quotation marks to word +.de PQ +.ie '\\*(lq'"' (``\\$1''\\$2)\\$3 +.\"" fix emacs highlighting +.el (\\*(lq\\$1\\*(rq\\$2)\\$3 +.. +.\" # QR - quoted range +.de QR +.ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3 +.\"" fix emacs highlighting +.el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3 +.. +.\" # MT - "empty" string +.de MT +.QW "" +.. +.TH lset n 8.4 Tcl "Tcl Built-In Commands" +.BS +'\" Note: do not modify the .SH NAME line immediately below! +.SH NAME +lset \- Change an element in a list +.SH SYNOPSIS +\fBlset \fIvarName ?index...? newValue\fR +.BE +.SH DESCRIPTION +.PP +The \fBlset\fR command accepts a parameter, \fIvarName\fR, which +it interprets as the name of a variable containing a Tcl list. +It also accepts zero or more \fIindices\fR into +the list. The indices may be presented either consecutively on the +command line, or grouped in a +Tcl list and presented as a single argument. +Finally, it accepts a new value for an element of \fIvarName\fR. +.PP +If no indices are presented, the command takes the form: +.CS +lset varName newValue +.CE +or +.CS +lset varName {} newValue +.CE +In this case, \fInewValue\fR replaces the old value of the variable +\fIvarName\fR. +.PP +When presented with a single index, the \fBlset\fR command +treats the content of the \fIvarName\fR variable as a Tcl list. +It addresses the \fIindex\fR'th element in it +(0 refers to the first element of the list). +When interpreting the list, \fBlset\fR observes the same rules +concerning braces and quotes and backslashes as the Tcl command +interpreter; however, variable +substitution and command substitution do not occur. +The command constructs a new list in which the designated element is +replaced with \fInewValue\fR. This new list is stored in the +variable \fIvarName\fR, and is also the return value from the \fBlset\fR +command. +.PP +If \fIindex\fR is negative or greater than or equal to the number +of elements in \fI$varName\fR, then an error occurs. +.PP +.VS 8.5 +The interpretation of each simple \fIindex\fR value is the same as +for the command \fBstring index\fR, supporting simple index +arithmetic and indices relative to the end of the list. +.VE 8.5 +.PP +If additional \fIindex\fR arguments are supplied, then each argument is +used in turn to address an element within a sublist designated +by the previous indexing operation, +allowing the script to alter elements in sublists. The command, +.CS +lset a 1 2 newValue +.CE +or +.CS +lset a {1 2} newValue +.CE +replaces element 2 of sublist 1 with \fInewValue\fR. +.PP +The integer appearing in each \fIindex\fR argument must be greater +than or equal to zero. The integer appearing in each \fIindex\fR +argument must be strictly less than the length of the corresponding +list. In other words, the \fBlset\fR command cannot change the size +of a list. If an index is outside the permitted range, an error is reported. +.SH EXAMPLES +In each of these examples, the initial value of \fIx\fR is: +.CS +set x [list [list a b c] [list d e f] [list g h i]] + \fI\(-> {a b c} {d e f} {g h i}\fR +.CE +The indicated return value also becomes the new value of \fIx\fR +(except in the last case, which is an error which leaves the value of +\fIx\fR unchanged.) +.CS +\fBlset\fR x {j k l} + \fI\(-> j k l\fR +\fBlset\fR x {} {j k l} + \fI\(-> j k l\fR +\fBlset\fR x 0 j + \fI\(-> j {d e f} {g h i}\fR +\fBlset\fR x 2 j + \fI\(-> {a b c} {d e f} j\fR +\fBlset\fR x end j + \fI\(-> {a b c} {d e f} j\fR +\fBlset\fR x end-1 j + \fI\(-> {a b c} j {g h i}\fR +\fBlset\fR x 2 1 j + \fI\(-> {a b c} {d e f} {g j i}\fR +\fBlset\fR x {2 1} j + \fI\(-> {a b c} {d e f} {g j i}\fR +\fBlset\fR x {2 3} j + \fI\(-> list index out of range\fR +.CE +In the following examples, the initial value of \fIx\fR is: +.CS +set x [list [list [list a b] [list c d]] \e + [list [list e f] [list g h]]] + \fI\(-> {{a b} {c d}} {{e f} {g h}}\fR +.CE +The indicated return value also becomes the new value of \fIx\fR. +.CS +\fBlset\fR x 1 1 0 j + \fI\(-> {{a b} {c d}} {{e f} {j h}}\fR +\fBlset\fR x {1 1 0} j + \fI\(-> {{a b} {c d}} {{e f} {j h}}\fR +.CE +.SH "SEE ALSO" +list(n), lappend(n), lindex(n), linsert(n), llength(n), lsearch(n), +lsort(n), lrange(n), lreplace(n), +.VS 8.5 +string(n) +.VE + + +.SH KEYWORDS +element, index, list, replace, set |