* src/otlayout/otljstf.c (otl_jstf_gsub_mods_validate): Removed.
(otl_jstf_gpos_mods_validate): Renamed to...
(otl_jstf_gsubgpos_mods_validate): This.
Test whether lookup_count is zero.
(otl_jstf_priority_validate): Use otl_jstf_gsubgpos_mods_validate.
(otl_jstf_validate): Initialize gsub_lookup_count and
gpos_lookup_count if gsub or gpos is zero.

* src/otlayout/otlgsub.c: Rename counting variables to be more
meaningful.
Add copyright.
(otl_gsub_lookup1_validate): Simplify code.
(otl_gsub_lookup2_validate, otl_gsub_lookup3_validate,
otl_gsub_lookup4_validate, otl_gsub_lookup7_validate): Remove unused
variables.
(otl_gsub_lookup5_validate): Remove unused variable.
Fix call to otl_sub_rule_set_validate and
otl_sub_class_rule_set_validate.
(otl_chain_sub_class_rule_validate,
otl_chain_sub_class_set_validate): Removed.
(otl_gsub_lookup6_validate): Remove unused variable.
Fix call to otl_chain_sub_rule_set_validate.
(otl_gsub_lookup7_validate): Handle lookup type 8 also.
(otl_gsub_lookup8_validate: New function.
(otl_gsub_lookup1_apply, otl_gsub_lookup2_apply,
otl_gsub_lookup3_apply): Commented out.
(otl_gsub_validate_funcs): Add otl_gsub_lookup7_validate and
otl_gsub_lookup8_validate.
(otl_gsub_validate): Updated.

* src/otlayout/otlgsub.h: Add copyright.

* src/otlayout/otlcommn.c, src/otlayout/otlcommn.h
(otl_coverage_get_index): Comment out.
7 files changed