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Microsoft Typography | Developer | VOLT specification
UI | Main | Proj window | Glyph grp | Subs tool | Posi tool | Glyph def | Proof tool | Output


Output Window

The Output Window lists all compilation messages (errors, warnings) VOLT sends to the user. It is brought up every time a compile command is issued.

Clicking on a compilation error or warning brings up the tool associated with the glyph/ glyph group/ lookup that caused the problem.


Compilation Errors

This list of possible compilation errors is probably incomplete and will be added to in the future. Note that only VOLT errors listed below are reported to the users: if VOLT compilation to TTO assembler has been successful, no errors or warning are expected to result from the process of running TTOASM.


VOLT Errors

  1. Glyph name XXX not recognized
  2. Name conflict: duplicate glyph name XXX
  3. Name conflict: duplicate lookup name XXX
  4. Group nesting too deep
  5. Glyph XXX is classified ambiguously as a <mark> and a <base glyph> at the same time
  6. Group XXX cannot be used as a mark classifier because it contains non-mark glyphs
  7. Groups XXX and YYY intersect and cannot be used as different mark classifiers at the same time. They both contain glyph M
  8. Inconsistent substitution types in lookup XXX
  9. Glyph groups referenced in lookup XXX have different cardinalities
  10. Lookup XXX: cannot achieve desired transformation using lookups listed
  11. Lookup XXX: referenced lookup name YYY not recognized
  12. Ambiguous transformation specified in lookup XXX
  13. Glyph groups XXX and YYY intersect and cannot be used in the same lookup LLL. They both contain glyph G
  14. Conflicting ligature caret information found for glyph L in lookups XXX and YYY
  15. Conflicting CMAP entries found for glyphs XXX and YYY
  16. Warning: the substitution in lookup XXX does not preserve the total number of components
  17. Warning: the type of glyph G is not consistent with the Unicode classification of its CMAP entry
  18. Warning: the lookup LLL cannot be used in a context substitution XXX because it is not comprised of uniform substitutions (VOLT restriction)
  19. Warning: the lookup LLL cannot be used in a context substitution XXX because it does not skip the glyphs skipped by XXX (VOLT restriction)



this page was last updated 13 August 1999
© 1999 Microsoft Corporation. All rights reserved. Terms of use.
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UI | Main | Proj window | Glyph grp | Subs tool | Posi tool | Glyph def | Proof tool | Output
Microsoft Typography | Developer | VOLT specification