Fix #43 and add a test case

opensourcecobol / Open-COBOL-ESQL

Open Cobol ESQL (ocesql) is an open-source Embedded SQL pre-compiler and run-time library designed for COBOL applications which access an open-source database.

https://www.osscons.jp/osscobol/

GNU Lesser General Public License v3.0

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Fix #43 and add a test case #44

Closed yutaro-sakamoto closed 2 years ago

yutaro-sakamoto commented 2 years ago

I modified scanner.l to accept empty string literals and fixed #43. In addition, I add a test case for empty string.