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Open a file in append mode
Source position: systemh.inc line 1337
procedure Append( |
var t: Text |
); |
Append opens an existing file in append mode. Any data written to F will be appended to the file. Only text files can be opened in append mode. After a call to Append, the file F becomes write-only. File sharing is not taken into account when calling Append.
If the file doesn't exist when appending, a run-time error will be generated. This behaviour has changed on Windows and Linux platforms, where in versions prior to 1.0.6, the file would be created in append mode.
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Open file for writing |
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Close a file |
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Open file for reading |
Program Example3; { Program to demonstrate the Append function. } Var f : text; begin Assign (f,'test.txt'); Rewrite (f); { file is opened for write, and emptied } Writeln (F,'This is the first line of text.txt'); close (f); Append(f); { file is opened for write, but NOT emptied. any text written to it is appended.} Writeln (f,'This is the second line of text.txt'); close (f); end.