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-rw-r--r--tex/generic/context/luatex/luatex-fonts-merged.lua7
1 files changed, 6 insertions, 1 deletions
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 46ff6c4c2..c77cd4626 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
-- merged file : luatex-fonts-merged.lua
-- parent file : luatex-fonts.lua
--- merge date : 06/05/12 17:36:46
+-- merge date : 06/05/12 21:45:24
do -- begin closure to overcome local limits and interference
@@ -118,6 +118,11 @@ function string.topattern(str,lowercase,strict)
end
end
+
+function string.valid(str,default)
+ return (type(str) == "string" and str ~= "" and str) or default or nil
+end
+
-- obsolete names:
string.quote = string.quoted