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Add hs_expression_ext_info() API function

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This is a variant of hs_expression_info() that can also accept extended
parameters.
This commit is contained in:
Justin Viiret
2015-10-23 17:15:24 +11:00
committed by Matthew Barr
parent 67b9784dae
commit 12921b7c97
5 changed files with 239 additions and 56 deletions
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33
src/nfagraph/ng_expr_info.cpp
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@@ -94,11 +94,34 @@ void checkVertex(const ReportManager &rm, const NGWrapper &w, NFAVertex v,
const DepthMinMax &d = depths.at(idx);
for (ReportID report_id : w[v].reports) {
const Report &ir = rm.getReport(report_id);
assert(ir.type == EXTERNAL_CALLBACK);
s32 adjust = ir.offsetAdjust;
info.min = min(info.min, d.min + adjust);
info.max = max(info.max, d.max + adjust);
const Report &report = rm.getReport(report_id);
assert(report.type == EXTERNAL_CALLBACK);
DepthMinMax rd = d;
// Compute graph width to this report, taking any offset adjustment
// into account.
rd.min += report.offsetAdjust;
rd.max += report.offsetAdjust;
// A min_length param is a lower bound for match width.
if (report.minLength && report.minLength <= depth::max_value()) {
depth min_len((u32)report.minLength);
rd.min = max(rd.min, min_len);
rd.max = max(rd.max, min_len);
}
// A max_offset param is an upper bound for match width.
if (report.maxOffset && report.maxOffset <= depth::max_value()) {
depth max_offset((u32)report.maxOffset);
rd.min = min(rd.min, max_offset);
rd.max = min(rd.max, max_offset);
}
DEBUG_PRINTF("vertex %u report %u: %s\n", w[v].index, report_id,
rd.str().c_str());
info = unionDepthMinMax(info, rd);
}
}