Proleap Cobol Parser Versions Save

Several bugs and requests have been issued. This release contains following new features and bug fixes:

Features

• Extended preprocessor with a linked list data structure for COBOL lines. This enables referencing COBOL line predecessors and successors for analysis of line continuations.

Bug fixes

• Fix for COMMA CHAR in string statement.
• Fix for paragraph statement without dot.
• Fix for non-compliant line continuation with quote in column 72.
• Fix for whitespace between two string literals in line continuation.
• Fix for FILE CONTROL paragraphs without FILE CONTROL keyword.
• Fix for MOVE CORR statement.

Several bugs and requests have been issued. This release contains following new features and bug fixes:

Features

• Replaced the copy books list parameter with an optional param object, which contains (1) a copy book files list, (2) a copy book directories list and (3) a copy book extensions list:

final CobolParserParams params = new CobolParserParamsImpl();
params.setCopyBookDirectories(...);
params.setCopyBookFiles(...);
params.setCopyBookExtensions(Lists.newArrayList("cpy"));
final Program program = new CobolParserRunnerImpl().analyzeFile(inputFile, CobolSourceFormatEnum.FIXED, params);

• Improved the copy book resolver for all kinds of COPY statement variants, including COPY statements with paths and with or without extensions.
• The parser now throws a RuntimeException on syntax errors. Can be disabled by:

final CobolParserParams params = new CobolParserParamsImpl();
params.setIgnoreSyntaxErrors(true);
final Program program = new CobolParserRunnerImpl().analyzeFile(inputFile, CobolSourceFormatEnum.FIXED, params);

• Added a charset parameter for COBOL files, which are not UTF-8:

final CobolParserParams params = new CobolParserParamsImpl();
params.setCharset(...);
final Program program = new CobolParserRunnerImpl().analyzeFile(inputFile, CobolSourceFormatEnum.FIXED, params);

• Added support for a lot of COBOL preprocessor options such as CBL ADV.
• Added <> operator.

Bug fixes

• Fix for reserved keywords in the preprocessor.
• Fix for ACCEPT statement.
• Fix for STRING statement.
• Fix for counter-intuitive names of DIVIDE sub-statements.
• Fix for comment entries marker.

A big thank you to @Reinhard-Prehofer and @albertolovato for their steady contributions!

We were provided with a batch of several hundred real-life finance COBOL files. Following features and bug fixes enable successful parsing of all of these files.

Features

• $SET compiler directives are removed by preprocessor.
• CBL and PROCESS statements are removed by preprocessor. Added numerous compiler options.
• added SET TO ENTRY statement type.
• added AND in combined condition.
• added null-terminated string.
• added procedure division ASG USING and GIVING clauses.

Bug fixes

• fix for FIXED line format with short line numbers.
• added NATIONAL-EDITED to initialize statement.
• condition subscript fix.
• fixed ADD TO GIVING.
• NPE fixes.

We're very excited to introduce ProLeap COBOL parser 2.1.0. In the last months, the parser was tested with a lot of real-life production COBOL files. As a result, this release contains a lot of bug fixes and optimizations:

• optimized the order of called ASG elements, as they are added to the symbol table
• redefined paragraphs, data description entries etc. do not collide on the symbol table
• comments added to hidden channel
• a lot of fixes in the preprocessor
• a lot of fixes in the AST grammar
• a lot of fixes in the ASG generator

Thanks to @Reinhard-Prehofer, @albertolovato, @acaramia for pull requests and contributions.