void KMacroExpanderBase::expandMacros(QString &str)
{
int pos;
int len;
ushort ec = d->escapechar.unicode();
QStringList rst;
QString rsts;
for (pos = 0; pos < str.length();) {
if (ec != 0) {
if (str.unicode()[pos].unicode() != ec) {
goto nohit;
}
if (!(len = expandEscapedMacro(str, pos, rst))) {
goto nohit;
}
} else {
if (!(len = expandPlainMacro(str, pos, rst))) {
goto nohit;
}
}
if (len < 0) {
pos -= len;
continue;
}
rsts = rst.join(QLatin1Char(' '));
rst.clear();
str.replace(pos, len, rsts);
pos += rsts.length();
continue;
nohit:
pos++;
}
}
bool KMacroExpanderBase::expandMacrosShellQuote( QString &str, int &pos )
{
int len;
int pos2;
ushort uc;
ushort ec = d->escapechar.unicode();
bool shellQuote = false; // shell is in quoted state
bool crtQuote = false; // c runtime is in quoted state
bool escaped = false; // previous char was a circumflex
int bslashes = 0; // previous chars were backslashes
int parens = 0; // parentheses nesting level
QStringList rst;
QString rsts;
while (pos < str.length()) {
ushort cc = str.unicode()[pos].unicode();
if (escaped) // prevent anomalies due to expansion
goto notcf;
if (ec != 0) {
if (cc != ec)
goto nohit;
if (!(len = expandEscapedMacro( str, pos, rst )))
goto nohit;
} else {
if (!(len = expandPlainMacro( str, pos, rst )))
goto nohit;
}
if (len < 0) {
pos -= len;
continue;
}
if (shellQuote != crtQuote) // Silly, isn't it? Ahoy to Redmond.
return false;
if (shellQuote) {
rsts = KShell::quoteArgInternal( rst.join( QLatin1String(" ") ), true );
} else {
if (rst.isEmpty()) {
str.remove( pos, len );
continue;
}
rsts = KShell::joinArgs( rst );
}
pos2 = 0;
while (pos2 < rsts.length() &&
((uc = rsts.unicode()[pos2].unicode()) == '\\' || uc == '^'))
pos2++;
if (pos2 < rsts.length() && rsts.unicode()[pos2].unicode() == '"') {
QString bsl;
bsl.reserve( bslashes );
for (; bslashes; bslashes--)
bsl.append( QLatin1String("\\") );
rsts.prepend( bsl );
}
bslashes = 0;
rst.clear();
str.replace( pos, len, rsts );
pos += rsts.length();
continue;
nohit:
if (!escaped && !shellQuote && cc == '^') {
escaped = true;
} else {
notcf:
if (cc == '\\') {
bslashes++;
} else {
if (cc == '"') {
if (!escaped)
shellQuote = !shellQuote;
if (!(bslashes & 1))
crtQuote = !crtQuote;
} else if (!shellQuote) {
if (cc == '(')
parens++;
else if (cc == ')')
if (--parens < 0)
break;
}
bslashes = 0;
}
escaped = false;
}
pos++;
}
return true;
}
