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Diffstat (limited to 'Build/source/texk/kpathsea/variable.h')
-rw-r--r-- | Build/source/texk/kpathsea/variable.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Build/source/texk/kpathsea/variable.h b/Build/source/texk/kpathsea/variable.h index ab4a22a6924..6bd2a62bf98 100644 --- a/Build/source/texk/kpathsea/variable.h +++ b/Build/source/texk/kpathsea/variable.h @@ -1,6 +1,6 @@ /* variable.h: declare variable expander. - Copyright 1993, 1995, 2008 Karl Berry. + Copyright 1993, 1995, 2008, 2019 Karl Berry. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -39,7 +39,9 @@ extern KPSEDLL string kpathsea_var_value (kpathsea kpse, const_string var); In any case, ``expansion'' means calling `getenv'; if the variable is not set, look in texmf.cnf files for a definition. If not set there, either, - the expansion is the empty string (no error). */ + the expansion of a $FOO construct is its literal text ("$FOO"), while + the expansion of a ${BAR} construct is the empty string. This is so + at least some file names containing $ characters will work. */ extern KPSEDLL string kpathsea_var_expand (kpathsea kpse, const_string src); #if defined (KPSE_COMPAT_API) |