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Simplify chaining

This commit is contained in:
Behdad Esfahbod 2010-05-05 01:37:58 -04:00
parent 1911b9d21b
commit 4169710911
1 changed files with 25 additions and 36 deletions
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61
src/hb-ot-layout-gsubgpos-private.hh
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@ -258,20 +258,15 @@ static inline bool context_lookup (hb_apply_context_t *context,
const LookupRecord lookupRecord[],
ContextLookupContext &lookup_context)
{
unsigned int new_context_length;
if (!match_input (context,
inputCount, input,
lookup_context.funcs.match, lookup_context.match_data,
&new_context_length)) return false;
unsigned int old_context_length;
old_context_length = context->context_length;
context->context_length = new_context_length;
bool ret = apply_lookup (context,
inputCount,
lookupCount, lookupRecord,
lookup_context.funcs.apply);
context->context_length = old_context_length;
return ret;
hb_apply_context_t new_context = *context;
return match_input (context,
inputCount, input,
lookup_context.funcs.match, lookup_context.match_data,
&new_context.context_length)
&& apply_lookup (&new_context,
inputCount,
lookupCount, lookupRecord,
lookup_context.funcs.apply);
}
struct Rule
@ -529,28 +524,22 @@ static inline bool chain_context_lookup (hb_apply_context_t *context,
inputCount + lookaheadCount > context->context_length))
return false;
unsigned int offset;
if (!(match_backtrack (context,
backtrackCount, backtrack,
lookup_context.funcs.match, lookup_context.match_data[0]) &&
match_input (context,
inputCount, input,
lookup_context.funcs.match, lookup_context.match_data[1],
&offset) &&
match_lookahead (context,
lookaheadCount, lookahead,
lookup_context.funcs.match, lookup_context.match_data[2],
offset))) return false;
unsigned int old_context_length;
old_context_length = context->context_length;
context->context_length = offset;
bool ret = apply_lookup (context,
inputCount,
lookupCount, lookupRecord,
lookup_context.funcs.apply);
context->context_length = old_context_length;
return ret;
hb_apply_context_t new_context = *context;
return match_backtrack (context,
backtrackCount, backtrack,
lookup_context.funcs.match, lookup_context.match_data[0])
&& match_input (context,
inputCount, input,
lookup_context.funcs.match, lookup_context.match_data[1],
&new_context.context_length)
&& match_lookahead (context,
lookaheadCount, lookahead,
lookup_context.funcs.match, lookup_context.match_data[2],
new_context.context_length)
&& apply_lookup (&new_context,
inputCount,
lookupCount, lookupRecord,
lookup_context.funcs.apply);
}
struct ChainRule