string length
BlitzMax Forums/BlitzMax Beginners Area/string length
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| is there anyway of reading a string in without knowing how long it is, say if its a null terminated string levelsetname=ReadString$(levdat,5) this reads in 5 characters does the readline$ read in all of A NULL terminated string... |
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| I always use WriteLine/ReadLine for strings, as it's a lot easier than having to know in advance how long a string is, as you do with ReadString. |
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| Assuming you've written your data sequentially, you could write a byte/short/int before the string, which tells you how long the string actually is. |
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| If you use WriteStream and ReadStream you have to store a byte before the string. |
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| what i was actually trying to do was read a file i hadn't created its a level file for another(somebody else's game), so all i knew was that it contained null terminated strings in 'c' terms the language. so if you dont know how long the string is because you didnt make it, i would have to use readline, also that then begs if i have to then save this file back out when i have modified it, when blitzmax writes say a writeline, is this classed as a null terminated string to be compatible with the previous one read in? |
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| oh the other thing with strings each character in a string is 8 bytes is that right, and with null terminated charachters at the end is that one character or 8 bytes anyone know.....? |
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| No each character is one byte. Here is a simple example of how you could handle this sort of thing... |
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