| 1 | '\" |
| 2 | '\" Copyright (c) 1995-1996 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: fconfigure.n,v 1.7.2.2 2004/10/27 12:52:40 dkf 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 |
| 101 | .if !"\\$1"" .nr )A \\w'\\$1'u+3n |
| 102 | .nr )B \\n()Au+15n |
| 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 |
| 114 | .nr ^b 1u |
| 115 | .if n .nf |
| 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 |
| 122 | .nf |
| 123 | .ti 0 |
| 124 | .mk ^t |
| 125 | .ie n \l'\\n(^lu\(ul' |
| 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 |
| 141 | '\" # ^Y = starting y location |
| 142 | '\" # ^v = 1 (for troff; for nroff this doesn't matter) |
| 143 | .de VS |
| 144 | .if !"\\$2"" .br |
| 145 | .mk ^Y |
| 146 | .ie n 'mc \s12\(br\s0 |
| 147 | .el .nr ^v 1u |
| 148 | .. |
| 149 | '\" # VE - end of vertical sidebar |
| 150 | .de VE |
| 151 | .ie n 'mc |
| 152 | .el \{\ |
| 153 | .ev 2 |
| 154 | .nf |
| 155 | .ti 0 |
| 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 |
| 168 | .ev 2 |
| 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 fconfigure n 8.3 Tcl "Tcl Built-In Commands" |
| 246 | .BS |
| 247 | '\" Note: do not modify the .SH NAME line immediately below! |
| 248 | .SH NAME |
| 249 | fconfigure \- Set and get options on a channel |
| 250 | .SH SYNOPSIS |
| 251 | .nf |
| 252 | \fBfconfigure \fIchannelId\fR |
| 253 | \fBfconfigure \fIchannelId\fR \fIname\fR |
| 254 | \fBfconfigure \fIchannelId\fR \fIname value \fR?\fIname value ...\fR? |
| 255 | .fi |
| 256 | .BE |
| 257 | .SH DESCRIPTION |
| 258 | .PP |
| 259 | The \fBfconfigure\fR command sets and retrieves options for channels. |
| 260 | .PP |
| 261 | \fIChannelId\fR identifies the channel for which to set or query an |
| 262 | option and must refer to an open channel such as a Tcl standard |
| 263 | channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR), the return |
| 264 | value from an invocation of \fBopen\fR or \fBsocket\fR, or the result |
| 265 | of a channel creation command provided by a Tcl extension. |
| 266 | .PP |
| 267 | If no \fIname\fR or \fIvalue\fR arguments are supplied, the command |
| 268 | returns a list containing alternating option names and values for the channel. |
| 269 | If \fIname\fR is supplied but no \fIvalue\fR then the command returns |
| 270 | the current value of the given option. |
| 271 | If one or more pairs of \fIname\fR and \fIvalue\fR are supplied, the |
| 272 | command sets each of the named options to the corresponding \fIvalue\fR; |
| 273 | in this case the return value is an empty string. |
| 274 | .PP |
| 275 | The options described below are supported for all channels. In addition, |
| 276 | each channel type may add options that only it supports. See the manual |
| 277 | entry for the command that creates each type of channels for the options |
| 278 | that that specific type of channel supports. For example, see the manual |
| 279 | entry for the \fBsocket\fR command for its additional options. |
| 280 | .TP |
| 281 | \fB\-blocking\fR \fIboolean\fR |
| 282 | The \fB\-blocking\fR option determines whether I/O operations on the |
| 283 | channel can cause the process to block indefinitely. |
| 284 | The value of the option must be a proper boolean value. |
| 285 | Channels are normally in blocking mode; if a channel is placed into |
| 286 | nonblocking mode it will affect the operation of the \fBgets\fR, |
| 287 | \fBread\fR, \fBputs\fR, \fBflush\fR, and \fBclose\fR commands; |
| 288 | see the documentation for those commands for details. |
| 289 | For nonblocking mode to work correctly, the application must be |
| 290 | using the Tcl event loop (e.g. by calling \fBTcl_DoOneEvent\fR or |
| 291 | invoking the \fBvwait\fR command). |
| 292 | .TP |
| 293 | \fB\-buffering\fR \fInewValue\fR |
| 294 | . |
| 295 | If \fInewValue\fR is \fBfull\fR then the I/O system will buffer output |
| 296 | until its internal buffer is full or until the \fBflush\fR command is |
| 297 | invoked. If \fInewValue\fR is \fBline\fR, then the I/O system will |
| 298 | automatically flush output for the channel whenever a newline character |
| 299 | is output. If \fInewValue\fR is \fBnone\fR, the I/O system will flush |
| 300 | automatically after every output operation. The default is for |
| 301 | \fB\-buffering\fR to be set to \fBfull\fR except for channels that |
| 302 | connect to terminal-like devices; for these channels the initial setting |
| 303 | is \fBline\fR. Additionally, \fBstdin\fR and \fBstdout\fR are |
| 304 | initially set to \fBline\fR, and \fBstderr\fR is set to \fBnone\fR. |
| 305 | .TP |
| 306 | \fB\-buffersize\fR \fInewSize\fR |
| 307 | . |
| 308 | \fINewvalue\fR must be an integer; its value is used to set the size of |
| 309 | buffers, in bytes, subsequently allocated for this channel to store input |
| 310 | or output. \fINewvalue\fR must be between ten and one million, allowing |
| 311 | buffers of ten to one million bytes in size. |
| 312 | .TP |
| 313 | \fB\-encoding\fR \fIname\fR |
| 314 | . |
| 315 | This option is used to specify the encoding of the channel, so that the data |
| 316 | can be converted to and from Unicode for use in Tcl. For instance, in |
| 317 | order for Tcl to read characters from a Japanese file in \fBshiftjis\fR |
| 318 | and properly process and display the contents, the encoding would be set |
| 319 | to \fBshiftjis\fR. Thereafter, when reading from the channel, the bytes in |
| 320 | the Japanese file would be converted to Unicode as they are read. |
| 321 | Writing is also supported \- as Tcl strings are written to the channel they |
| 322 | will automatically be converted to the specified encoding on output. |
| 323 | .RS |
| 324 | .PP |
| 325 | If a file contains pure binary data (for instance, a JPEG image), the |
| 326 | encoding for the channel should be configured to be \fBbinary\fR. Tcl |
| 327 | will then assign no interpretation to the data in the file and simply read or |
| 328 | write raw bytes. The Tcl \fBbinary\fR command can be used to manipulate this |
| 329 | byte-oriented data. |
| 330 | .PP |
| 331 | The default encoding for newly opened channels is the same platform- and |
| 332 | locale-dependent system encoding used for interfacing with the operating |
| 333 | system. |
| 334 | .RE |
| 335 | .TP |
| 336 | \fB\-eofchar\fR \fIchar\fR |
| 337 | .TP |
| 338 | \fB\-eofchar\fR \fB{\fIinChar outChar\fB}\fR |
| 339 | . |
| 340 | This option supports DOS file systems that use Control-z (\ex1a) as an |
| 341 | end of file marker. If \fIchar\fR is not an empty string, then this |
| 342 | character signals end-of-file when it is encountered during input. For |
| 343 | output, the end-of-file character is output when the channel is closed. |
| 344 | If \fIchar\fR is the empty string, then there is no special end of file |
| 345 | character marker. For read-write channels, a two-element list specifies |
| 346 | the end of file marker for input and output, respectively. As a |
| 347 | convenience, when setting the end-of-file character for a read-write |
| 348 | channel you can specify a single value that will apply to both reading |
| 349 | and writing. When querying the end-of-file character of a read-write |
| 350 | channel, a two-element list will always be returned. The default value |
| 351 | for \fB\-eofchar\fR is the empty string in all cases except for files |
| 352 | under Windows. In that case the \fB\-eofchar\fR is Control-z (\ex1a) for |
| 353 | reading and the empty string for writing. |
| 354 | .TP |
| 355 | \fB\-translation\fR \fImode\fR |
| 356 | .TP |
| 357 | \fB\-translation\fR \fB{\fIinMode outMode\fB}\fR |
| 358 | . |
| 359 | In Tcl scripts the end of a line is always represented using a single |
| 360 | newline character (\en). However, in actual files and devices the end of |
| 361 | a line may be represented differently on different platforms, or even for |
| 362 | different devices on the same platform. For example, under UNIX newlines |
| 363 | are used in files, whereas carriage-return-linefeed sequences are |
| 364 | normally used in network connections. On input (i.e., with \fBgets\fP |
| 365 | and \fBread\fP) the Tcl I/O system automatically translates the external |
| 366 | end-of-line representation into newline characters. Upon output (i.e., |
| 367 | with \fBputs\fP), the I/O system translates newlines to the external |
| 368 | end-of-line representation. The default translation mode, \fBauto\fP, |
| 369 | handles all the common cases automatically, but the \fB\-translation\fR |
| 370 | option provides explicit control over the end of line translations. |
| 371 | .RS |
| 372 | .PP |
| 373 | The value associated with \fB\-translation\fR is a single item for |
| 374 | read-only and write-only channels. The value is a two-element list for |
| 375 | read-write channels; the read translation mode is the first element of |
| 376 | the list, and the write translation mode is the second element. As a |
| 377 | convenience, when setting the translation mode for a read-write channel |
| 378 | you can specify a single value that will apply to both reading and |
| 379 | writing. When querying the translation mode of a read-write channel, a |
| 380 | two-element list will always be returned. The following values are |
| 381 | currently supported: |
| 382 | .TP |
| 383 | \fBauto\fR |
| 384 | . |
| 385 | As the input translation mode, \fBauto\fR treats any of newline |
| 386 | (\fBlf\fP), carriage return (\fBcr\fP), or carriage return followed by a |
| 387 | newline (\fBcrlf\fP) as the end of line representation. The end of line |
| 388 | representation can even change from line-to-line, and all cases are |
| 389 | translated to a newline. As the output translation mode, \fBauto\fR |
| 390 | chooses a platform specific representation; for sockets on all platforms |
| 391 | Tcl chooses \fBcrlf\fR, for all Unix flavors, it chooses \fBlf\fR, for the |
| 392 | Macintosh platform it chooses \fBcr\fR and for the various flavors of |
| 393 | Windows it chooses \fBcrlf\fR. The default setting for |
| 394 | \fB\-translation\fR is \fBauto\fR for both input and output. |
| 395 | .TP |
| 396 | \fBbinary\fR |
| 397 | . |
| 398 | No end-of-line translations are performed. This is nearly identical to |
| 399 | \fBlf\fP mode, except that in addition \fBbinary\fP mode also sets the |
| 400 | end-of-file character to the empty string (which disables it) and sets the |
| 401 | encoding to \fBbinary\fR (which disables encoding filtering). See the |
| 402 | description of \fB\-eofchar\fR and \fB\-encoding\fR for more information. |
| 403 | .TP |
| 404 | \fBcr\fR |
| 405 | . |
| 406 | The end of a line in the underlying file or device is represented by a |
| 407 | single carriage return character. As the input translation mode, |
| 408 | \fBcr\fP mode converts carriage returns to newline characters. As the |
| 409 | output translation mode, \fBcr\fP mode translates newline characters to |
| 410 | carriage returns. This mode is typically used on Macintosh platforms. |
| 411 | .TP |
| 412 | \fBcrlf\fR |
| 413 | . |
| 414 | The end of a line in the underlying file or device is represented by a |
| 415 | carriage return character followed by a linefeed character. As the input |
| 416 | translation mode, \fBcrlf\fP mode converts carriage-return-linefeed |
| 417 | sequences to newline characters. As the output translation mode, |
| 418 | \fBcrlf\fP mode translates newline characters to carriage-return-linefeed |
| 419 | sequences. This mode is typically used on Windows platforms and for |
| 420 | network connections. |
| 421 | .TP |
| 422 | \fBlf\fR |
| 423 | . |
| 424 | The end of a line in the underlying file or device is represented by a |
| 425 | single newline (linefeed) character. In this mode no translations occur |
| 426 | during either input or output. This mode is typically used on UNIX |
| 427 | platforms. |
| 428 | .RE |
| 429 | .PP |
| 430 | .SH "STANDARD CHANNELS" |
| 431 | .PP |
| 432 | The Tcl standard channels (\fBstdin\fR, \fBstdout\fR, and \fBstderr\fR) |
| 433 | can be configured through this command like every other channel opened |
| 434 | by the Tcl library. Beyond the standard options described above they |
| 435 | will also support any special option according to their current type. |
| 436 | If, for example, a Tcl application is started by the \fBinet\fR |
| 437 | super-server common on Unix system its Tcl standard channels will be |
| 438 | sockets and thus support the socket options. |
| 439 | .SH EXAMPLES |
| 440 | Instruct Tcl to always send output to \fBstdout\fR immediately, |
| 441 | whether or not it is to a terminal: |
| 442 | .CS |
| 443 | \fBfconfigure\fR stdout -buffering none |
| 444 | .CE |
| 445 | .PP |
| 446 | Open a socket and read lines from it without ever blocking the |
| 447 | processing of other events: |
| 448 | .CS |
| 449 | set s [socket some.where.com 12345] |
| 450 | \fBfconfigure\fR $s -blocking 0 |
| 451 | fileevent $s readable "readMe $s" |
| 452 | proc readMe chan { |
| 453 | if {[gets $chan line] < 0} { |
| 454 | if {[eof $chan]} { |
| 455 | close $chan |
| 456 | return |
| 457 | } |
| 458 | # Could not read a complete line this time; Tcl's |
| 459 | # internal buffering will hold the partial line for us |
| 460 | # until some more data is available over the socket. |
| 461 | } else { |
| 462 | puts stdout $line |
| 463 | } |
| 464 | } |
| 465 | .CE |
| 466 | .PP |
| 467 | Read a PPM-format image from a file: |
| 468 | .CS |
| 469 | # Open the file and put it into Unix ASCII mode |
| 470 | set f [open teapot.ppm] |
| 471 | \fBfconfigure\fR $f \-encoding ascii \-translation lf |
| 472 | |
| 473 | # Get the header |
| 474 | if {[gets $f] ne "P6"} { |
| 475 | error "not a raw\-bits PPM" |
| 476 | } |
| 477 | |
| 478 | # Read lines until we have got non-comment lines |
| 479 | # that supply us with three decimal values. |
| 480 | set words {} |
| 481 | while {[llength $words] < 3} { |
| 482 | gets $f line |
| 483 | if {[string match "#*" $line]} continue |
| 484 | lappend words [eval concat [scan $line %d%d%d]] |
| 485 | } |
| 486 | |
| 487 | # Those words supply the size of the image and its |
| 488 | # overall depth per channel. Assign to variables. |
| 489 | foreach {xSize ySize depth} $words {break} |
| 490 | |
| 491 | # Now switch to binary mode to pull in the data, |
| 492 | # one byte per channel (red,green,blue) per pixel. |
| 493 | \fBfconfigure\fR $f \-translation binary |
| 494 | set numDataBytes [expr {3 * $xSize * $ySize}] |
| 495 | set data [read $f $numDataBytes] |
| 496 | |
| 497 | close $f |
| 498 | .CE |
| 499 | |
| 500 | .SH "SEE ALSO" |
| 501 | close(n), flush(n), gets(n), open(n), puts(n), read(n), socket(n), |
| 502 | Tcl_StandardChannels(3) |
| 503 | |
| 504 | .SH KEYWORDS |
| 505 | blocking, buffering, carriage return, end of line, flushing, linemode, |
| 506 | newline, nonblocking, platform, translation, encoding, filter, byte array, |
| 507 | binary |