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- Differences between Ox G1.03 and G1.04
- April 16, 1994
- --------------------------------------
- If you tend to have trouble with cycles, you should upgrade to
- this version.
-
- * Vastly increased the amount of useful information reported
- by the generated evaluator upon detection of a cycle.
-
- * Improved the clarity of messages issued by Ox upon
- detection of incomplete or inconsistent attribute definition
- section.
-
- * Increased the default sizes of data structures for parse-
- tree management in the generated evaluator.
-
- * Fixed incorrect declaration of yyyerror under -I option.
-
- * Fixed incorrect behavior (regarding storage of dependee
- counts) of the generated evaluator upon detection of a
- cycle.
-
-
-
- Differences between Ox G1.02 and G1.03
- February 8, 1994
- --------------------------------------
- * Fixed bug wherein Ox was not accepting the C++ reserved
- word `class' in attribute declarations.
-
-
-
- Differences between Ox G1.01 and G1.02
- February 7, 1994
- --------------------------------------
- This is mainly a bug-fix release. Almost all of the bugs were of
- the kind observed during the running of Ox, rather than during
- running of the generated evaluator. Thanks to those who sent bug
- reports.
-
- * Fixed -S option, which wasn't correctly stripping @autoinh
- and @autosyn constructs from the Y-file.
-
- * Fixed minor incompatibilities regarding use with C++.
-
- * Fixed minor incompatibilities regarding use with Bison.
-
- * Fixed incorrect reporting of line numbers upon
- unterminated strings, comments, C-code sections, etc.
-
- * Eliminated various causes of segmentation faults that
- occurred when Ox tried to continue after its data structures
- became incorrect due to errors in the Y-file.
-
- * Disabled the use of nested macros, pending resolution of a
- bug that results in a segmentation fault.
-
- * Fixed bug wherein Ox produced (for grammars of more than
- 255 grammar rules) evaluators that falsely reported cycles
- in the parse tree, possibly followed by a segmentation
- fault.
-
- * Fixed bug that caused a segmentation fault in the
- generated evaluator for parse trees with cycles.
-
- * Improved reporting in case of cycle detection--now prints
- the number of the grammar rule that labels the root of a
- subtree in which a cycle is detected.
-
-
-
- Changes, improvements, inclusions new to version G1.01
- November 14, 1993
- ------------------------------------------------------
- * Ox Tutorial Introduction (19 pages). This new paper uses
- examples and an informal style to quickly familiarize the
- reader with the main features of Ox.
-
- * (updated) Ox User Reference Manual (57 pages). Includes
- coverage of features added since December 1992. An index
- has been added, and coverage of certain features has been
- expanded.
-
- * Files containing all examples from the tutorial and the
- reference manual, ready to test and modify.
-
- * Ox grammars for popular languages. Included are Yacc/Lex
- grammars for C, C++, Ada, Pascal, and FORTRAN that have been
- converted (mainly by modifying Makefiles) for use with Ox.
-
- * compatible names for Ox's output files: Ox now outputs
- files with the the names `oxout.y' and `oxout.l', instead of
- `ox.out.y' and `ox.out.l'. This is to make Ox translators
- more easily portable to operating systems (such as DOS) that
- have file-naming rules that are more restrictive than those
- of Unix.
-
- * minor bug fixes.
-