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FileTools[Text][ReadCharacter] - read a single character from a file
Calling Sequence
ReadCharacter(file)
Parameters
file
-
file descriptor or filename
Description
The ReadCharacter(file) command reads a single character from file. The character is returned as a string of length .
If file is the name of a file that has not been opened, Maple attempts to open the file before reading the character.
An error is raised if file is not a valid descriptor or if it is the name of a file that does not exists.
If the end of the file has been reached, ReadCharacter returns NULL.
Examples
See Also
file, FileTools[AtEndOfFile], FileTools[Text], FileTools[Text][Close], FileTools[Text][Open], FileTools[Text][ReadString], FileTools[Text][WriteCharacter], FileTools[Text][WriteString], IO_errors
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