AlliedModders - Using Files to write data/values(old and new file commands)

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AlliedModders (https://forums.alliedmods.net/index.php)

- Code Snippets/Tutorials (https://forums.alliedmods.net/forumdisplay.php?f=83)

- - Using Files to write data/values(old and new file commands) (https://forums.alliedmods.net/showthread.php?t=46218)

The Specialist

12-11-2006 16:13

Re: Using Files to write data/values(old and new file commands)

wow. Your awsome schnitzlmaker! thank you so much ! ++karma . :up:

new question . when i write using the enums, i want the map name and origins together, so that i can load only origins of the map there on , into the menu . how can i tell which map name has which origins and only load them ?

pRED*

05-10-2007 04:57

Re: Using Files to write data/values(old and new file commands)

What open mode should I use to find and delete a specified line?

On mode "a+"/"w+" it create a file if there no exist
Mode "w+" overwrite a file if one exist*/
Those two lines seem to contradict each other. Would I be right to say the first line should be "a+"/"r+" creates a file if it doesn't exist?

And r+ probably the right mode for me to use?

Nice tutorial btw, great help for my new plugin

schnitzelmaker

05-10-2007 10:07

Re: Using Files to write data/values(old and new file commands)

You need to create 2 Files and copy from 1 file to another without the line you want.
See here:http://forums.alliedmods.net/showthread.php?t=49539

pRED*

05-10-2007 18:11

Re: Using Files to write data/values(old and new file commands)

What about overwriting a line?

Can I open the file in w+ mode and read lines till I find what I want, then overwrite it with slightly different values?

schnitzelmaker

05-11-2007 03:04

Re: Using Files to write data/values(old and new file commands)

Overwrite yes,but you cant delete a line from a file (And dont open in "w+" mode, this delete file /*Mode "w+" overwrite a file if one exist*/,use "a+")
But you can overwrite it with empty statement

djmd378

05-12-2007 01:51

Re: Using Files to write data/values(old and new file commands)

i tried useing fseek to read the end of the file first but no luck. It always reads from the first line. Can someone show me an example of how I would read from bottem to top of a file?

teame06

05-12-2007 01:53

Re: Using Files to write data/values(old and new file commands)

Code:

fget(file, ...) // For first line

/* Set Position to last line in the file */
fseek(file, 0, SEEK_END);

fget(file, ...);

P.S. This belong in the scripting section and not the tutorial section.

vitorrossi

11-07-2012 22:18

Re: Using Files to write data/values(old and new file commands)

Instead of

PHP Code:


		
			
new fsize = file_size(filename,1)
for (new line=0;line<=fsize;line++)

I had to use

PHP Code:


		
			
new fsize = file_size(filename,1) - 1
for (new line=0;line<=fsize;line++)

Quote:

Originally Posted by hleV (Post 1834789)

Wasn't - 1 enough?
Technically, since the line starts with 0 and not 1, only the loop condition should be changed:

PHP Code:


		
			
for (new line; line < fsize; line++)

as the last line available should be filesize(filename, 1) - 1.

You are right, I meant to type -1

hleV	11-08-2012 14:39

Re: Using Files to write data/values(old and new file commands)

Wasn't - 1 enough?
Technically, since the line starts with 0 and not 1, only the loop condition should be changed:

PHP Code:


		
			
for (new line; line < fsize; line++)

as the last line available should be filesize(filename, 1) - 1.

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