Difference between revisions of "Io.open"
From GiderosMobile
(Created page with "__NOTOC__ '''Available since:''' Gideros 2011.6<br/> === Description === This function opens a file, in the mode specified in the string mode. It returns a new file handle, or...") |
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The mode string can also have a 'b' at the end, which is needed in some systems to open the file in binary mode. This string is exactly what is used in the standard C function fopen. | The mode string can also have a 'b' at the end, which is needed in some systems to open the file in binary mode. This string is exactly what is used in the standard C function fopen. | ||
<source lang="lua"> | <source lang="lua"> | ||
| − | (file) | + | (file) = io.open(filename,mode) |
</source> | </source> | ||
| − | '''filename | + | '''filename''': (string) filename to open ''''''<br/> |
| − | '''mode | + | '''mode''': (string) mode in which to open the file '''optional'''<br/> |
'''Returns''' (file) file object<br/> | '''Returns''' (file) file object<br/> | ||
Revision as of 11:16, 23 August 2018
Available since: Gideros 2011.6
Description
This function opens a file, in the mode specified in the string mode. It returns a new file handle, or, in case of errors, nil plus an error message.
The mode string can be any of the following:
"r": read mode (the default); "w": write mode; "a": append mode; "r+": update mode, all previous data is preserved; "w+": update mode, all previous data is erased; "a+": append update mode, previous data is preserved, writing is only allowed at the end of file.
The mode string can also have a 'b' at the end, which is needed in some systems to open the file in binary mode. This string is exactly what is used in the standard C function fopen.
(file) = io.open(filename,mode)
'filename: (string) filename to open '
mode: (string) mode in which to open the file optional
Returns (file) file object
