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SQLCalcEngine - evaluate numeric expression

By Wayne Lawton,

SQLCalcEngine - evaluate numeric expression similar to the VB eval function.

The basic concept is to pass a string containing a numeric expression such as ((2+3)*(4/9)) and receive a numeric value back.

The algorithm is based loosely on material found at, as well as material found in the book "Writing Compilers and Interpreters" by Ronald Mak.

The next enhancement will be to implement two-character operators, as well as support the common SQL functions in the expressions. Look for updates to the script over the near future.

Total article views: 302 | Views in the last 30 days: 1
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