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42 lines
1.7 KiB
42 lines
1.7 KiB
/* variable.h: Declare variable expander. |
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Copyright (C) 1993, 95 Karl Berry. |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public |
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License as published by the Free Software Foundation; either |
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version 2 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Library General Public License for more details. |
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You should have received a copy of the GNU Library General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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#ifndef KPATHSEA_VARIABLE_H |
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#define KPATHSEA_VARIABLE_H |
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#include <kpathsea/c-proto.h> |
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#include <kpathsea/types.h> |
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/* Return the (variable-expanded) environment variable value or config |
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file value, or NULL. */ |
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extern KPSEDLL string kpse_var_value P1H(const_string var); |
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/* Expand $VAR and ${VAR} references in SRC, returning the (always newly |
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dynamically-allocated) result. An unterminated ${ or any other |
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character following $ produce error messages, and that part of SRC is |
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ignored. In the $VAR form, the variable name consists of consecutive |
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letters, digits, and underscores. In the ${VAR} form, the variable |
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name consists of whatever is between the braces. |
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In any case, ``expansion'' means calling `getenv'; if the variable is not |
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set, look in texmf.cnf files for a definition. If not set there, either, |
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the expansion is the empty string (no error). */ |
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extern KPSEDLL string kpse_var_expand P1H(const_string src); |
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#endif /* not KPATHSEA_VARIABLE_H */
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