EXAMPLE - UNICODE Function

In this example, you can see how the CHAR function can be used to convert numeric index values to Unicode characters, and the UNICODE function can be used to convert characters back to numeric values.

Source:

The following column contains some source index values:

index
1
33
33.5
34
48
57
65
90
97
121
254
255
256
257
9998
9999

Transform:

When the above values are imported to the Transformer page, the column is typed as integer, with a single mismatched value (33.5). To see the corresponding Unicode characters for these characters, enter the following transform:

derive type:single value: CHAR(index) as: 'char_index'

To see how these characters map back to the index values, now add the following transform:

derive type:single value: UNICODE(char_index) as: 'unicode_char_index'

Results:

indexchar_indexunicode_char_index
1 1
33!33
33.5
34"34
48048
57957
65A65
90Z90
97a97
122z122
254þ254
255ÿ255
256Ā256
257ā257
99989998
99999999

Note that the floating point input value was not processed.

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