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preprocessor for the pf.conf file: unfolging long lines and macro substitutions

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This commit is contained in:
Vadim Kurland 2011-05-21 20:12:39 -07:00
parent 64661383cc
commit 9be69950eb
1 changed files with 27 additions and 21 deletions
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48
src/import/PFImporterRun.cpp
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@ -65,44 +65,50 @@ void PFImporter::run()
*/
QMap<QString, QString> named_addresses;
QStringList whole_input;
QStringList whole_input_tmp;
input.seekg (0, ios::beg);
char buf[8192];
while (!input.eof())
{
input.getline(buf, sizeof(buf)-1);
whole_input.append(QString(buf));
whole_input_tmp.append(QString(buf));
}
foreach(QString str, whole_input)
QString whole_input = whole_input_tmp.join("\n");
QRegExp line_continuation("\\\\\\s*\n");
whole_input.replace(line_continuation, "");
QRegExp macro_definition("^\\s*(\\S+)\\s*=\\s*\"(.*)\"$");
QMap<QString, QString> macros;
foreach(QString str, whole_input.split("\n"))
{
if (str.startsWith("name "))
if (macro_definition.indexIn(str) != -1)
{
QStringList items = str.split(" ");
named_addresses[items[2]] = items[1];
macros[macro_definition.cap(1)] = macro_definition.cap(2);
}
}
QStringList normalized_input_buffer;
if (fwbdebug)
qDebug() << "Macros defined in this file: " << macros;
foreach(QString str, whole_input)
QMapIterator<QString, QString> it(macros);
while (it.hasNext())
{
if ( ! str.startsWith("name "))
{
QMap<QString, QString>::iterator it;
for (it=named_addresses.begin(); it!=named_addresses.end(); ++it)
{
QString re("\\b%1\\b");
str.replace(QRegExp(re.arg(it.key())), it.value());
}
}
normalized_input_buffer.append(str);
it.next();
QString macro_name = it.key();
QString macro_value = it.value();
whole_input.replace( "$" + macro_name, macro_value);
}
istringstream normalized_input(
normalized_input_buffer.join("\n").toStdString());
if (fwbdebug)
{
qDebug() << "pf.conf file after line unfolding and macro substitution:";
qDebug() << whole_input;
}
istringstream normalized_input(whole_input.toStdString());
PFCfgLexer lexer(normalized_input);
PFCfgParser parser(lexer);