1cdf0e10cSrcweir<?xml version="1.0" encoding="UTF-8"?> 2cdf0e10cSrcweir 3226a8927SAndrew Rist<!--*********************************************************** 4cdf0e10cSrcweir * 5226a8927SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 6226a8927SAndrew Rist * or more contributor license agreements. See the NOTICE file 7226a8927SAndrew Rist * distributed with this work for additional information 8226a8927SAndrew Rist * regarding copyright ownership. The ASF licenses this file 9226a8927SAndrew Rist * to you under the Apache License, Version 2.0 (the 10226a8927SAndrew Rist * "License"); you may not use this file except in compliance 11226a8927SAndrew Rist * with the License. You may obtain a copy of the License at 12cdf0e10cSrcweir * 13226a8927SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 14cdf0e10cSrcweir * 15226a8927SAndrew Rist * Unless required by applicable law or agreed to in writing, 16226a8927SAndrew Rist * software distributed under the License is distributed on an 17226a8927SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 18226a8927SAndrew Rist * KIND, either express or implied. See the License for the 19226a8927SAndrew Rist * specific language governing permissions and limitations 20226a8927SAndrew Rist * under the License. 21cdf0e10cSrcweir * 22226a8927SAndrew Rist ***********************************************************--> 23226a8927SAndrew Rist 24cdf0e10cSrcweir<helpdocument version="1.0"> 25cdf0e10cSrcweir<meta> 26cdf0e10cSrcweir<topic id="textsbasicshared03020301xml" indexer="include" status="PUBLISH"> 27cdf0e10cSrcweir<title id="tit" xml-lang="en-US">Eof Function [Runtime]</title> 28cdf0e10cSrcweir<filename>/text/sbasic/shared/03020301.xhp</filename> 29cdf0e10cSrcweir</topic> 30cdf0e10cSrcweir</meta> 31cdf0e10cSrcweir<body> 32cdf0e10cSrcweir<section id="eof"> 33734551d2Smseidel<bookmark xml-lang="en-US" branch="index" id="bm_id3154598"> 34734551d2Smseidel<bookmark_value>Eof function</bookmark_value> 35cdf0e10cSrcweir</bookmark> 36*6f3be818Smseidel<paragraph role="heading" id="hd_id3154598" xml-lang="en-US" level="1" l10n="U"><link href="text/sbasic/shared/03020301.xhp" name="Eof Function [Runtime]">Eof Function [Runtime]</link></paragraph> 37*6f3be818Smseidel<paragraph role="paragraph" id="par_id3147182" xml-lang="en-US" l10n="U">Determines if the file pointer has reached the end of a file.</paragraph> 38cdf0e10cSrcweir</section> 39*6f3be818Smseidel<paragraph role="heading" id="hd_id3149119" xml-lang="en-US" level="2" l10n="U">Syntax:</paragraph> 40*6f3be818Smseidel<paragraph role="code" id="par_id3147399" xml-lang="en-US" l10n="U">Eof (intexpression As Integer)</paragraph> 41*6f3be818Smseidel<paragraph role="heading" id="hd_id3153539" xml-lang="en-US" level="2" l10n="U">Return value:</paragraph> 42*6f3be818Smseidel<paragraph role="paragraph" id="par_id3156027" xml-lang="en-US" l10n="U">Bool</paragraph> 43*6f3be818Smseidel<paragraph role="heading" id="hd_id3152924" xml-lang="en-US" level="2" l10n="U">Parameters:</paragraph> 44*6f3be818Smseidel<paragraph role="paragraph" id="par_id3153990" xml-lang="en-US" l10n="U"><emph>Intexpression:</emph> Any integer expression that evaluates to the number of an open file.</paragraph> 45*6f3be818Smseidel<paragraph role="paragraph" id="par_id3153527" xml-lang="en-US" l10n="U">Use EOF to avoid errors when you attempt to get input past the end of a file. When you use the Input or Get statement to read from a file, the file pointer is advanced by the number of bytes read. When the end of a file is reached, EOF returns the value "True" (-1).</paragraph> 46cdf0e10cSrcweir<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 47cdf0e10cSrcweir<embed href="text/sbasic/shared/00000003.xhp#err5"/> 48cdf0e10cSrcweir<embed href="text/sbasic/shared/00000003.xhp#err52"/> 49*6f3be818Smseidel<paragraph role="heading" id="hd_id3154046" xml-lang="en-US" level="2" l10n="U">Example:</paragraph> 50*6f3be818Smseidel<paragraph role="code" id="par_id3143270" xml-lang="en-US" l10n="U">Sub ExampleWorkWithAFile</paragraph> 51*6f3be818Smseidel<paragraph role="code" id="par_id3150670" xml-lang="en-US" l10n="U">Dim iNumber As Integer</paragraph> 52*6f3be818Smseidel<paragraph role="code" id="par_id3154143" xml-lang="en-US" l10n="U">Dim sLine As String</paragraph> 53*6f3be818Smseidel<paragraph role="code" id="par_id3148943" xml-lang="en-US" l10n="U">Dim aFile As String</paragraph> 54*6f3be818Smseidel<paragraph role="code" id="par_id3153897" xml-lang="en-US" l10n="U">Dim sMsg as String</paragraph> 55*6f3be818Smseidel<paragraph role="code" id="par_id3156344" xml-lang="en-US" l10n="U">aFile = "c:\data.txt"</paragraph> 56*6f3be818Smseidel<paragraph role="code" id="par_id3148663" xml-lang="en-US" l10n="U">iNumber = Freefile</paragraph> 57*6f3be818Smseidel<paragraph role="code" id="par_id3153379" xml-lang="en-US" l10n="U">Open aFile For Output As #iNumber</paragraph> 58*6f3be818Smseidel<paragraph role="code" id="par_id3153360" xml-lang="en-US" l10n="U">Print #iNumber, "First line of text"</paragraph> 59*6f3be818Smseidel<paragraph role="code" id="par_id3148797" xml-lang="en-US" l10n="U">Print #iNumber, "Another line of text"</paragraph> 60*6f3be818Smseidel<paragraph role="code" id="par_id3154684" xml-lang="en-US" l10n="U">Close #iNumber</paragraph> 61*6f3be818Smseidel<paragraph role="code" id="par_id3153104" xml-lang="en-US" l10n="U">iNumber = Freefile</paragraph> 62*6f3be818Smseidel<paragraph role="code" id="par_id3144761" xml-lang="en-US" l10n="U">Open aFile For Input As iNumber</paragraph> 63*6f3be818Smseidel<paragraph role="code" id="par_id3153193" xml-lang="en-US" l10n="U">While not eof(iNumber)</paragraph> 64*6f3be818Smseidel<paragraph role="code" id="par_id3158408" xml-lang="en-US" l10n="U">Line Input #iNumber, sLine</paragraph> 65*6f3be818Smseidel<paragraph role="code" id="par_id3149203" xml-lang="en-US" l10n="U">If sLine <>"" then</paragraph> 66*6f3be818Smseidel<paragraph role="code" id="par_id3153770" xml-lang="en-US" l10n="U">sMsg = sMsg & sLine & chr(13)</paragraph> 67*6f3be818Smseidel<paragraph role="code" id="par_id3153367" xml-lang="en-US" l10n="U">end if</paragraph> 68*6f3be818Smseidel<paragraph role="code" id="par_id3147318" xml-lang="en-US" l10n="U">wend</paragraph> 69*6f3be818Smseidel<paragraph role="code" id="par_id3152939" xml-lang="en-US" l10n="U">Close #iNumber</paragraph> 70*6f3be818Smseidel<paragraph role="code" id="par_id3153726" xml-lang="en-US" l10n="U">Msgbox sMsg</paragraph> 71*6f3be818Smseidel<paragraph role="code" id="par_id3153092" xml-lang="en-US" l10n="U">End Sub</paragraph> 72cdf0e10cSrcweir</body> 73cdf0e10cSrcweir</helpdocument> 74