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Bruce Momjian b57b0e0445 The first fix is to allow an input file with a relative path and without ... a ".pgc " extension. The second patch fixes a coredump when there is more than one input file (in that case, cur and types were not set to NULL before processing the second f ile) The patch below modifies the accepted grammar of ecpg to accept FETCH [direction] [amount] cursor name i.e. the IN|FROM clause becomes optional (as in Oracle and Informix). This removes the incompatibility mentioned in section "Porting From Other RDBMS Packages" p169, PostgreSQL Programmer's Guide. The grammar is modified in such a way as to avoid shift/reduce conflicts. It does not accept the statement "EXEC SQL FETCH;" anymore, as the old grammar did (this seems to be a bug of the old grammar anyway). This patch cleans up the handling of space characters in the scanner; some patte rns require \n to be in {space}, some do not. A second fix is the handling of cpp continuati on lines; the old pattern did not match these. The parser is patched to fix an off-by-one error in the #line directives. The pa rser is also enhanced to report the correct location of errors in declarations in the "E XEC SQL DECLARE SECTION". Finally, some right recursions in the parser were replaced by left-recursions. This patch adds preprocessor directives to ecpg; in particular EXEC SQL IFDEF, EXEC SQL IFNDEF, EXEC SQL ELSE, EXEC SQL ELIF and EXEC SQL ENDIF "EXEC SQL IFDEF" is used with defines made with "EXEC SQL DEFINE" and defines, specified on the command line with -D. Defines, specified on the command line are persistent across multiple input files. Defines can be nested up to a maximum level of 128 (see patch). There is a fair amount of error checking to make sure directives are matched properly. I need preprocessor directives for porting code, that is written for an Informix database, to a PostgreSQL database, while maintaining compatibility with the original code. I decided not to extend the already large ecpg grammar. Everything is done in the scanner by adding some states, e.g. to skip all input except newlines and directives. The preprocessor commands are compatible with Informix. Oracle uses a cpp replacement. Rene Hogendoorn		26 years ago
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include	Fix _cplusplus test in both trees.	26 years ago
lib	*** empty log message ***	26 years ago
preproc	The first fix is to allow an input file with a relative path and without	26 years ago
test	*** empty log message ***	26 years ago
ChangeLog	*** empty log message ***	26 years ago
Makefile	Hi,	28 years ago
TODO	*** empty log message ***	26 years ago