[dylan-lang/melange] db1094: Insert empty token for empty macro arguments.

  Branch: refs/heads/master
  Home:   https://github.com/dylan-lang/melange
  Commit: db1094ac04aeb7d51a5bd735b6bafbb7aea29307
      https://github.com/dylan-lang/melange/commit/db1094ac04aeb7d51a5bd735b6bafbb7aea29307
  Author: Wim Vander Schelden <[email protected]>
  Date:   2015-09-30 (Wed, 30 Sep 2015)

  Changed paths:
    M melange-core/c-lexer-cpp.dylan
    M melange-core/c-lexer.dylan
    M melange-core/library.dylan
    A tests/test.empty-macro-arg/empty-macro-arg.h
    A tests/test.empty-macro-arg/expected.dylan
    A tests/test.empty-macro-arg/test.intr

  Log Message:
  -----------
  Insert empty token for empty macro arguments.

This prevents the concatenation operator (##) from erroneously
consuming the next token when trying to concatenate an empty
macro argument with some prefix.

Needed for parsing math.h/mathcalls.h on Linux, fixes #27.


  Commit: b68e5f80ca69f4558505e25b1d9a8a3acd25b366
      https://github.com/dylan-lang/melange/commit/b68e5f80ca69f4558505e25b1d9a8a3acd25b366
  Author: Bruce Mitchener <[email protected]>
  Date:   2015-10-07 (Wed, 07 Oct 2015)

  Changed paths:
    M melange-core/c-lexer-cpp.dylan
    M melange-core/c-lexer.dylan
    M melange-core/library.dylan
    A tests/test.empty-macro-arg/empty-macro-arg.h
    A tests/test.empty-macro-arg/expected.dylan
    A tests/test.empty-macro-arg/test.intr

  Log Message:
  -----------
  Merge pull request #29 from wvdschel/master

Insert empty token for empty macro arguments.


Compare: https://github.com/dylan-lang/melange/compare/51143c5029d3...b68e5f80ca69

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