diff options
Diffstat (limited to 'tex/context/base/mkiv/math-act.lua')
| -rw-r--r-- | tex/context/base/mkiv/math-act.lua | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/tex/context/base/mkiv/math-act.lua b/tex/context/base/mkiv/math-act.lua index ee78b64f0..ead26bd4f 100644 --- a/tex/context/base/mkiv/math-act.lua +++ b/tex/context/base/mkiv/math-act.lua @@ -9,7 +9,7 @@ if not modules then modules = { } end modules ['math-act'] = { -- Here we tweak some font properties (if needed). local type, next = type, next -local fastcopy = table.fastcopy +local fastcopy, insert, remove = table.fastcopy, table.insert, table.remove local formatters = string.formatters local trace_defining = false trackers.register("math.defining", function(v) trace_defining = v end) @@ -674,6 +674,9 @@ end function mathematics.injectfallbacks(target,original) if #stack > 0 then -- for now + if trace_collecting then + report_math("stack overflow in math fallbacks") + end return end local properties = original.properties @@ -684,7 +687,7 @@ function mathematics.injectfallbacks(target,original) if fallbacks then local definitions = fonts.collections.definitions[fallbacks] if definitions then - table.insert(stack, { + insert(stack, { target = target, original = original, list = { }, @@ -710,7 +713,7 @@ function mathematics.injectfallbacks(target,original) end function mathematics.finishfallbacks() - local top = table.remove(stack) + local top = remove(stack) if not top then report_math("finish error in math fallbacks") return @@ -725,7 +728,7 @@ function mathematics.finishfallbacks() local fallbacks = specification.fallbacks if fallbacks then local definitions = fonts.collections.definitions[fallbacks] - if definitions then + if definitions and #definitions > 0 then if trace_collecting then report_math("adding fallback characters to font %a",specification.hash) end @@ -770,6 +773,7 @@ function mathematics.finishfallbacks() end characters[unic] = copiedglyph(target,characters,chars,unicode,index) done[unic] = true + else end end for unicode = start, stop do @@ -786,6 +790,8 @@ function mathematics.finishfallbacks() xlist = nil xtarget = nil xoriginal = nil + elseif trace_collecting then + report_math("no fallback characters added to font %a",specification.hash) end end end |