fortran, reading strings with embedded "/" characters

reading strings with embedded "/" characters

Author	Message
Beliavs #1 / 3	reading strings with embedded "/" characters I have text files with lines such as 2/25/2001 12.2 10.4 12/2/2000 2.0 3.0 I would like to read strings from each line and then read the numerical data from each string. The problem is that character (len=), parameter :: input_line="2/25/2001 12.2 10.4" character (len=100) read (input_line,) s1,s2,s3 will not read "2/25/2001" into s1, since "/" is recognized as a delimiter. What I do is replace the "/" characters with some other character such as "?", read the strings, and then replace "?" with "/". This is ugly. Is there a way to tell the compiler not to treat "/" as a delimiter?
Thu, 14 Aug 2003 23:39:14 GMT

Ken Plotki #2 / 3	reading strings with embedded "/" characters Quote: >I have text files with lines such as >2/25/2001 12.2 10.4 >12/2/2000 2.0 3.0 >I would like to read strings from each line and then read the >numerical data from each string. The problem is that >character (len=), parameter :: input_line="2/25/2001 12.2 10.4" >character (len=100) >read (input_line,) s1,s2,s3 >will not read "2/25/2001" into s1, since "/" is recognized as a delimiter. >What I do is replace the "/" characters with some other character >such as "?", read the strings, and then replace "?" with "/". >This is ugly. Is there a way to tell the compiler not to treat "/" as a >delimiter? Use a formatted read for the string. You can still read the numeric data as list-directed, reading from input_line after the initial string. List-directed input of strings very often carries surprises; I've learned to avoid it. Once you've read an input line into the string input_line, you've got the ability to do just about anything you want with it. You don't even need to use read to get S1: you can do s1 = input_line(1:9) And if S1 isn't always the same length (maybe way in the future you'll be working on Y10K issues and will have the date 2/25/10002), you can use index to find the first blank. Ken Plotkin
Fri, 15 Aug 2003 00:57:18 GMT

Richard Main #3 / 3	reading strings with embedded "/" characters Quote: > Use a formatted read for the string. Just a terminology correction here. List-directed reads ARE formatted reads. They use list-directed formatting. What is wanted here is to use an explicit format instead of a list-directed one. Other than that terminology nit, I'll just second what Ken said. -- Richard Maine email: my last name at domain domain: qnet dot com
Fri, 15 Aug 2003 03:12:10 GMT

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