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-
-
- lgets fileId [varName]
- Reads the next Tcl list from the file given by fileId
- and discards the terminating newline character. This
- command differs from the gets command, in that it reads
- Tcl lists rather than lines. If the list contains a
- newline, then that newline will be returned as part of
- the result. Only a newline not quoted as part of the
- list indicates the end of the list. There is no
- corresponding command for outputing lists, as puts will
- do this correctly. If varName is specified, then the
- line is placed in the variable by that name and the
- return value is a count of the number of characters
- read (not including the newline). If the end of the
- file is reached before reading any characters then -1
- is returned and varName is set to an empty string. If
- varName is not specified then the return value will be
- the line (minus the newline character) or an empty
- string if the end of the file is reached before reading
- any characters. An empty string will also be returned
- if a line contains no characters except the newline, so
- eof may have to be used to determine what really
- happened.
-