diff options
Diffstat (limited to 'tex/context/base/core-env.lua')
| -rw-r--r-- | tex/context/base/core-env.lua | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tex/context/base/core-env.lua b/tex/context/base/core-env.lua index 8cbc93038..2cc84299b 100644 --- a/tex/context/base/core-env.lua +++ b/tex/context/base/core-env.lua @@ -31,6 +31,7 @@ tex.systemmodes = allocate { } tex.constants = allocate { } tex.conditionals = allocate { } tex.ifs = allocate { } +tex.isdefined = allocate { } local modes = { } local systemmodes = { } @@ -78,6 +79,10 @@ setmetatableindex(tex.ifs, function(t,k) return csname_id(k) ~= undefined and create(k)[2] == iftrue -- inefficient, this create, we need a helper end) +setmetatableindex(tex.isdefined, function(t,k) + return csname_id(k) ~= undefined +end) + function context.setconditional(name,value) if value then context.settruevalue(name) |