[m-rev.] for review: allow comments and blank lines in mdb scripts

[Julien Fischer]

On Fri, 15 Jun 2007, Ian MacLarty wrote:

> Ignore empty lines, or lines that start with `#', in sourced mdb scripts.
> This is useful for formatting and documenting mdb scripts.
>
> Create a local copy of the mdbrc file so that we can test new mdb scripts
> in the test suite.
>
> NEWS:
> 	Mention the changes.
>
> configure.in:
> 	Create a copy of mdbrc.in in the tests directory and create an mdbrc
> 	from this file using different substitutions than those used for the
> 	mdbrc that will be installed.  This is necessary so that we can use
> 	the local mdbrc file when running the tests.  Previously if the mdbrc
> 	file was changed (for example a new alias was added), then we had to
> 	install it before testing.
>
> doc/user_guide.texi:
> 	Document the new behaviour of the source command.
>
> scripts/mdb_grep:
> scripts/mdb_open:
> scripts/mdb_track:
> 	Add comments to these mdb scripts.
>
> scripts/mdbrc.in:
> 	Use a different substitution variable for the location of mdb_doc,
> 	since for the test version of mdbrc mdb_doc will be in a different
> 	location to the other scripts.
>
> tests/Mmake.common:
> 	Get mdb to use the local mdbrc when invoked for the tests.
>
> 	Clean mdbrc and mdbrc.in.
>
> tests/debugger/Mercury.options:
> tests/debugger/Mmakefile:
> tests/debugger/scripts.exp:
> tests/debugger/scripts.inp:
> tests/debugger/scripts.m:
> 	Add a test case for the three existing mdb scripts.
>
> trace/mercury_trace_readline.c:
> trace/mercury_trace_readline.h:
> 	Rename MR_trace_readline_expand_args to MR_trace_readline_from_script
> 	and get it to ignore comment lines and blank lines.
>
> trace/mercury_trace_internal.c:
> 	Adapt to changes in mercury_trace_readline.h.

That looks fine.

Julien.
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