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77b9dbd557
* src/LaTeX.C (LaTeX::deplog): Assume that filenames in log files are stored in the file system encoding * src/frontends/qt4/qt_helpers.[Ch] (internal_path): delete * src/frontends/qt4/QGraphics.C: Adjust to change above * src/frontends/qt4/QPrefsDialog.C: ditto * src/frontends/qt4/QExternal.C: ditto * src/frontends/qt4/QInclude.C: ditto * src/support/os.h: Document the encoding of filename arguments * src/support/os_win32.h: ditto * src/support/filetools.C (findtexfile): Convert filename from file system encoding * src/support/os_win32.C: Convert filenames from utf8 to file system encoding and vice versa where needed * src/support/os_cygwin.C: ditto * src/support/getcwd.C (getcwd): Use internal_path() with correct encoding * src/support/docstring.[Ch] (from_filesystem8bit): new conversion function * src/support/environment.C (getEnv): convert environment variable from local 8bit encoding to utf8 (setEnv): convert environment variable from utf8 to local 8bit encoding * src/support/environment.h: document encoding of function arguments git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16753 a592a061-630c-0410-9148-cb99ea01b6c8
133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
/**
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* \file environment.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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* \author João Luis M. Assirati
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "support/environment.h"
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#include "support/os.h"
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#include <boost/tokenizer.hpp>
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#include <cstdlib>
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#include <map>
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#include <sstream>
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using std::string;
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using std::vector;
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namespace lyx {
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namespace support {
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string const getEnv(string const & envname)
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{
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// f.ex. what about error checking?
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char const * const ch = getenv(envname.c_str());
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return ch ? to_utf8(from_local8bit(ch)) : string();
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}
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vector<string> const getEnvPath(string const & name)
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{
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typedef boost::char_separator<char> Separator;
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typedef boost::tokenizer<Separator> Tokenizer;
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string const env_var = getEnv(name);
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Separator const separator(string(1, os::path_separator()).c_str());
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Tokenizer const tokens(env_var, separator);
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Tokenizer::const_iterator it = tokens.begin();
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Tokenizer::const_iterator const end = tokens.end();
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std::vector<string> vars;
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for (; it != end; ++it)
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vars.push_back(os::internal_path(*it));
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return vars;
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}
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bool setEnv(string const & name, string const & value)
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{
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// CHECK Look at and fix this.
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// f.ex. what about error checking?
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string const encoded(to_local8bit(from_utf8(value)));
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#if defined (HAVE_SETENV)
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int const retval = ::setenv(name.c_str(), encoded.c_str(), true);
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#elif defined (HAVE_PUTENV)
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static std::map<string, char *> varmap;
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string envstr = name + '=' + encoded;
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char * newptr = new char[envstr.size() + 1];
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envstr.copy(newptr, envstr.length());
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newptr[envstr.length()] = '\0';
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int const retval = ::putenv(newptr);
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char * oldptr = varmap[name];
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if (oldptr)
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delete oldptr;
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varmap[name] = newptr;
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#else
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#error No environment-setting function has been defined.
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#endif
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return retval == 0;
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}
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void setEnvPath(string const & name, vector<string> const & env)
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{
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char const separator(os::path_separator());
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std::ostringstream ss;
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vector<string>::const_iterator const begin = env.begin();
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vector<string>::const_iterator const end = env.end();
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vector<string>::const_iterator it = begin;
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for (; it != end; ++it) {
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if (it != begin)
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ss << separator;
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ss << os::external_path(*it);
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}
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setEnv(name, ss.str());
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}
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void prependEnvPath(string const & name, string const & prefix)
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{
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vector<string> env_var = getEnvPath(name);
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typedef boost::char_separator<char> Separator;
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typedef boost::tokenizer<Separator> Tokenizer;
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Separator const separator(string(1, os::path_separator()).c_str());
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// Prepend each new element to the list, removing identical elements
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// that occur later in the list.
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Tokenizer const tokens(prefix, separator);
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vector<string> reversed_tokens(tokens.begin(), tokens.end());
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typedef vector<string>::const_reverse_iterator token_iterator;
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token_iterator it = reversed_tokens.rbegin();
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token_iterator const end = reversed_tokens.rend();
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for (; it != end; ++it) {
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vector<string>::iterator remove_it =
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std::remove(env_var.begin(), env_var.end(), *it);
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env_var.erase(remove_it, env_var.end());
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env_var.insert(env_var.begin(), *it);
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}
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setEnvPath(name, env_var);
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}
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} // namespace support
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} // namespace lyx
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