Phaser Posted November 30, 2012 Share Posted November 30, 2012 Hi Guys I am currently trying to use data from a text file, currently I have a counter to increment to the next line when I call it next $zap = FileReadLine($datafile, $linecounter) I know its best NOT to increment this way BUT I am calling line 1, using the data then calling line 2 using the data etc etc Each file is different in length so I can't stop it as I don't know when the counter grabs the last line. So, my question is, how do I know when it's at the last line so I can stop the program? I've tried @error = -1 but as I am not within a loop until I get the end of the file, I just call each line when I need it, any ideas? Many thanks as always Link to comment Share on other sites More sharing options...
iamtheky Posted November 30, 2012 Share Posted November 30, 2012 (edited) #include <file.au3> $max = _filecountlines($datafile) for $linecounter = 1 to $max $zap = FileReadLine($datafile, $linecounter) ;whatever you are doing with $zap next Edited November 30, 2012 by boththose ,-. .--. ________ .-. .-. ,---. ,-. .-. .-. .-. |(| / /\ \ |\ /| |__ __||| | | || .-' | |/ / \ \_/ )/ (_) / /__\ \ |(\ / | )| | | `-' | | `-. | | / __ \ (_) | | | __ | (_)\/ | (_) | | .-. | | .-' | | \ |__| ) ( | | | | |)| | \ / | | | | | |)| | `--. | |) \ | | `-' |_| (_) | |\/| | `-' /( (_)/( __.' |((_)-' /(_| '-' '-' (__) (__) (_) (__) Link to comment Share on other sites More sharing options...
BrewManNH Posted November 30, 2012 Share Posted November 30, 2012 Hi Guys I am currently trying to use data from a text file, currently I have a counter to increment to the next line when I call it next $zap = FileReadLine($datafile, $linecounter) I know its best NOT to increment this way BUT I am calling line 1, using the data then calling line 2 using the data etc etc Doing it this way isn't necessary, regardless of what you're doing with the information from the line. If you use FileOpen before you read the first line, and use the file handle returned from the FileOpen, the next line read will always be the just after the previously read line. Each file is different in length so I can't stop it as I don't know when the counter grabs the last line. So, my question is, how do I know when it's at the last line so I can stop the program? I've tried @error = -1 but as I am not within a loop until I get the end of the file, I just call each line when I need it, any ideas? You need to check for the error immediately after reading the line from the file, or store the error message returned in a variable and read the variable later. $hFile = FileOpen("YourTextFile.txt") $Text = FileReadLine($hFile) ; reads the first line of the file If @error = -1 Then _FunctionThatHappensAfterTheEndOfFileIsReached() ; do something here $Text = FileReadLine($hFile) ; reads the second line of the file ; do something else here $Text = FileReadLine($hFile) ; reads the third line of the file Func _FunctionThatHappensAfterTheEndOfFileIsReached() Exit EndFunc If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag GudeHow to ask questions the smart way! I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from. Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays. - ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script. - Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label. - _FileGetProperty - Retrieve the properties of a file - SciTE Toolbar - A toolbar demo for use with the SciTE editor - GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI. - Latin Square password generator Link to comment Share on other sites More sharing options...
Phaser Posted November 30, 2012 Author Share Posted November 30, 2012 Thanks very much boththose, simple really, didn't know that function was available, I don't see it in the help file. Link to comment Share on other sites More sharing options...
jchd Posted November 30, 2012 Share Posted November 30, 2012 #include <file.au3> $max = _filecountlines($datafile) for $linecounter = 1 to $max $zap = FileReadLine($datafile, $linecounter) ;whatever you are doing with $zap next That's the absolute worst way to do it: you read the file twice, decomposing it in lines each time. _FileReadToArray unless the file is too large for memory (unlikely in most cases). This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe hereRegExp tutorial: enough to get startedPCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta. SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt) Link to comment Share on other sites More sharing options...
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