Read file line for line?

[Garrett]

I'm missing something here I'm sure. I'm trying to read a file line for line, but can't figure out how to tell Rev to move to the next line in the file.

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   put "...Downloads\enwiki-20090902-pages-articles.xml\enwiki-20090902-pages-articles.xml" into varFileToRead
   open file varFileToRead for read
   put 1 into varCounter
   put "filler" into varLineData
   --repeat until varLineData is empty
   read from file varFileToRead for 1 line
   put it into varLineData
   --end repeat
   close file varFileToRead

I'm using "read from file varFileToRead for 1 line" but see no way to tell Rev what line to read, unless it's not possible to use "line" in this manner, I did notice that it was shown as an example for "stdin" and not "file". If not possible, then I know I'll have to play a bit of a guessing game at using character counting to do this.

Any suggestions/help appreciated.

Thanks,
~Garrett

[Janschenkel]

When you use

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read from file theFilePath for 1 line

the engine reads until it finds the first linefeed. You have to keep track of where you're at; even though there's a seek command to jump to a specific spot in the file or some relative distance from where you're at, there's no seekPosition function to tell you where you currently are.

Best of luck,

Jan Schenkel.

[Garrett]

Ok, so I could do something like this then:

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seek varLineCounter in file varFileToRead

Basically, increment the "varLineCounter" myself so I know which line I'm on.

Sweet! That's what I needed, but of course, was looking for the wrong keyword in the docs....

Thanks again Jan!

[Janschenkel]

The seek command doesn't think in terms of lines, but in bytes/characters. Also bear in mind that read ... for 1 line may result in your slurping up the entire file, if the file doesn't contain linefeeds (as can be the case with XML files).

Jan Schenkel.