Estimated hours taken: 8
Branches: main
Move the rest of mode_errors.m to use error_util.
compiler/mode_errors.m:
The parts of this module that generate error messages (as opposed to
progress messages) now all return a description of the error to a
central place for printing by error_util.m. This should make it
significantly easier to add new error messages.
compiler/error_util.m:
Add the new capability to support mode_errors.m: that of describing
in one data structure a sequence of calls to write_error_pieces.
compiler/hlds_out.m:
Given a bunch of existing predicates that print various things,
provide versions that convert those things to strings, for use
in mode_errors.m.
Write_unify_context had two versions for printing and only one version
for conversion to pieces; add the second version for conversion to
pieces. Change the order of arguments of the five-argument version
of write_unify_context to allow the use of state variables.
compiler/mercury_to_mercury.m:
compiler/prog_out.m:
Given a bunch of existing predicates that print various things,
provide versions that convert those things to strings, for use
in hlds_out.m and mode_errors.m.
compiler/det_report.m:
Conform to the changed argument order of write_unify_context.
library/term_io.m:
Fix an old bug: the code of add_escaped_char wasn't actually doing
any escaping. hlds_out.m now relies on it doing so.
tests/hard_coded/xmlable_test.m:
Due to the bugfix in term_io.m, string__string now protects &s with
backslashes; expect this.
tests/invalid/*.err_exp:
Expect mode error messages in the new, better format.
Estimated hours taken: 6
Branches: main
Add a new method to convert terms to XML using a typeclass.
The new method is more flexible than the previous method in that values can be
converted to arbitrary elements with arbitrary attributes and children
(the previous method mapped a functor to one element with limited attributes).
DTDs cannot be automatically generated using the new method.
library/term_to_xml.m:
Update the documentation to describe the new method.
Divide the interface into two parts -- one for the new method and
one for the old method.
Rename some function symbols and variables of the old method to
distinguish them from names used in the new method.
Implement predicates for writing terms that are members of the xmlable
typeclass.
tests/hard_coded/Mmakefile:
tests/hard_coded/xmlable_test.exp:
tests/hard_coded/xmlable_test.m:
Test the new method.
tests/hard_coded/write_xml.m:
Use attr_from_source instead of attribute.
