Akim Demaille 0fe5a72a26 diagnostics: factor and enhance messages about duplicate rule directives ...

When reporting a duplicate directive on a rule, point to its first
occurrence:

one.y:11.10-15: error: only one %empty allowed per rule
   %empty {} %empty
             ^^^^^^
one.y:11.3-8: previous declaration
   %empty {} %empty
   ^^^^^^

And consistently discard the second one.

* src/complain.h, src/complain.c (duplicate_directive): New.
* src/reader.c: Use it where appropriate.
* src/symlist.h, src/symlist.c (symbol_list): Add a dprec_location member.
* tests/actions.at: Adjust expected output.

2013-02-18 10:01:29 +01:00

..

.gitignore

Update ignores.

2008-11-16 19:46:16 +01:00

actions.at

diagnostics: factor and enhance messages about duplicate rule directives

2013-02-18 10:01:29 +01:00

atlocal.in

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

bison.in

maint: be sure to neutralize out-of-tree paths from our parser

2013-01-29 14:14:39 +01:00

c++.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

calc.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

conflicts.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

cxx-type.at

maint: update copyright years

2013-01-12 16:14:16 +01:00

existing.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

glr-regression.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

headers.at

tests: highlight empty right-hand sides

2013-01-25 16:35:52 +01:00

input.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

java.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

local.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

local.mk

maint: fix syntax-check issues

2013-01-28 17:46:13 +01:00

named-refs.at

c: no longer require stdio.h when locations are enabled

2013-01-25 16:45:17 +01:00

output.at

tests: please clang and use ".cc", not ".c", for C++ input

2013-01-28 17:46:13 +01:00

push.at

maint: update copyright years

2013-01-12 16:14:16 +01:00

reduce.at

tests: use %empty

2013-02-18 10:01:27 +01:00

regression.at

report: use %empty to denote empty rules

2013-02-18 10:01:28 +01:00

sets.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

skeletons.at

tests: factor the definition of main

2013-01-21 16:27:46 +01:00

synclines.at

style: no longer use backquotes

2013-02-18 10:01:28 +01:00

testsuite.at

maint: update copyright years

2013-01-12 16:14:16 +01:00

torture.at

tests: factor the definition of main

2013-01-21 16:27:46 +01:00