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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/kpathsea/variable.h
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
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diff --git a/Build/source/texk/kpathsea/variable.h b/Build/source/texk/kpathsea/variable.h
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+/* variable.h: Declare variable expander.
+
+ Copyright (C) 1993, 95 Karl Berry.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+
+#ifndef KPATHSEA_VARIABLE_H
+#define KPATHSEA_VARIABLE_H
+
+#include <kpathsea/c-proto.h>
+#include <kpathsea/types.h>
+
+
+/* Return the (variable-expanded) environment variable value or config
+ file value, or NULL. */
+extern KPSEDLL string kpse_var_value P1H(const_string var);
+
+/* Expand $VAR and ${VAR} references in SRC, returning the (always newly
+ dynamically-allocated) result. An unterminated ${ or any other
+ character following $ produce error messages, and that part of SRC is
+ ignored. In the $VAR form, the variable name consists of consecutive
+ letters, digits, and underscores. In the ${VAR} form, the variable
+ name consists of whatever is between the braces.
+
+ 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). */
+extern KPSEDLL string kpse_var_expand P1H(const_string src);
+
+#endif /* not KPATHSEA_VARIABLE_H */