static lString16 decodeText(lString8 text) {
if (text.empty())
return lString16::empty_str;
lString8 buf;
bool lastControl = false;
for (int i=0; i<text.length(); i++) {
char ch = buf[i];
if (lastControl) {
switch (ch) {
case 'r':
buf.append(1, '\r');
break;
case 'n':
buf.append(1, '\n');
break;
case 't':
buf.append(1, '\t');
break;
default:
buf.append(1, ch);
break;
}
lastControl = false;
continue;
}
if (ch == '\\') {
lastControl = true;
continue;
}
buf.append(1, ch);
}
return Utf8ToUnicode(buf);
}
bool pop()
{
if (level_==0) {
return true;
}
prefix_ = prefix_.substr(0,prefix_.length()-1);
level_--;
update_candidates();
return false;
}
/// extract @import filename from beginning of CSS
bool LVProcessStyleSheetImport( const char * &str, lString8 & import_file )
{
const char * p = str;
import_file.clear();
skip_spaces( p );
if ( *p !='@' )
return false;
p++;
if (strncmp(p, "import", 6) != 0)
return false;
p+=6;
skip_spaces( p );
bool in_url = false;
char quote_ch = 0;
if ( !strncmp(p, "url", 3) ) {
p+=3;
skip_spaces( p );
if ( *p != '(' )
return false;
p++;
skip_spaces( p );
in_url = true;
}
if ( *p == '\'' || *p=='\"' )
quote_ch = *p++;
while (*p) {
if ( quote_ch && *p==quote_ch ) {
p++;
break;
}
if ( !quote_ch ) {
if ( in_url && *p==')' ) {
break;
}
if ( *p==' ' || *p=='\t' || *p=='\r' || *p=='\n' )
break;
}
import_file << *p++;
}
skip_spaces( p );
if ( in_url ) {
if ( *p!=')' )
return false;
p++;
}
if ( import_file.empty() )
return false;
str = p;
return true;
}
void onQuotedText(lString8 & token) {
//CRLog::trace("state==%d: \"%s\"", _state, token.c_str());
if (_state == 11 || _state == 13) {
if (!token.empty()) {
_url = LVCombinePaths(_basePath, Utf8ToUnicode(token));
}
_state = 2;
} else if (_state == 5) {
if (!token.empty()) {
_face = token;
}
_state = 2;
}
token.clear();
}
void parse(lString16 basePath, const lString8 & css) {
_state = 0;
_basePath = basePath;
lString8 token;
char insideQuotes = 0;
for (int i=0; i<css.length(); i++) {
char ch = css[i];
if (insideQuotes || _state == 13) {
if (ch == insideQuotes || (_state == 13 && ch == ')')) {
onQuotedText(token);
insideQuotes = 0;
if (_state == 13)
onToken(ch);
} else {
if (_state == 13 && token.empty() && (ch == '\'' || ch=='\"')) {
insideQuotes = ch;
} else if (ch != ' ' || _state != 13)
token << ch;
}
continue;
}
if (ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n') {
onToken(token);
} else if (ch == '@' || ch=='-' || ch=='_' || ch=='.' || ch>='a' && ch <='z' || ch>='A' && ch <='Z' || ch>='0' && ch <='9') {
token << ch;
} else if (ch == ':' || ch=='{' || ch == '}' || ch=='(' || ch == ')' || ch == ';') {
onToken(token);
onToken(ch);
} else if (ch == '\'' || ch == '\"') {
onToken(token);
insideQuotes = ch;
}
}
}
void onToken(char token) {
// 4,5: font-family:
// 6,7: font-weight:
// 8,9: font-style:
//10,11: src:
// 10 11 12 13
// src : url (
//CRLog::trace("state==%d: %c ", _state, token);
switch (token) {
case ':':
if (_state < 2) {
_state = 0;
} else if (_state == 4 || _state == 6 || _state == 8 || _state == 10) {
_state++;
} else if (_state != 3) {
_state = 2;
}
break;
case ';':
if (_state < 2) {
_state = 0;
} else if (_state != 3) {
_state = 2;
}
break;
case '{':
if (_state == 1) {
_state = 2; // inside @font {
_face.clear();
_italic = false;
_bold = false;
_url.clear();
} else
_state = 3; // inside other {
break;
case '}':
if (_state == 2) {
if (!_url.empty()) {
// CRLog::trace("@font { face: %s; bold: %s; italic: %s; url: %s", _face.c_str(), _bold ? "yes" : "no",
// _italic ? "yes" : "no", LCSTR(_url));
_fontList.add(_url, _face, _bold, _italic);
}
}
_state = 0;
break;
case '(':
if (_state == 12) {
_state = 13;
} else {
if (_state > 3)
_state = 2;
}
break;
}
}
bool push_button(int key) {
crtrace trace("selector::push(): ");
lString8 old_prefix = prefix_;
prefix_.append(1,static_cast<char>(key));
if(update_candidates()) {
level_++;
return true;
}
prefix_ = old_prefix;
return false;
}
void onToken(lString8 & token) {
if (token.empty())
return;
lString8 t = token;
token.clear();
//CRLog::trace("state==%d: %s", _state, t.c_str());
if (t == "@font-face") {
if (_state == 0)
_state = 1; // right after @font
return;
}
if (_state == 1)
_state = 0;
if (_state == 2) {
if (t == "font-family")
_state = 4;
else if (t == "font-weight")
_state = 6;
else if (t == "font-style")
_state = 8;
else if (t == "src")
_state = 10;
} else if (_state == 5) {
_face = t;
_state = 2;
} else if (_state == 7) {
if (t == "bold")
_bold = true;
_state = 2;
} else if (_state == 9) {
if (t == "italic")
_italic = true;
_state = 2;
} else if (_state == 11) {
if (t == "url")
_state = 12;
else
_state = 2;
}
}
/// load stylesheet from file, with processing of import
bool LVLoadStylesheetFile( lString16 pathName, lString8 & css )
{
LVStreamRef file = LVOpenFileStream( pathName.c_str(), LVOM_READ );
if ( file.isNull() )
return false;
lString8 txt = UnicodeToUtf8( LVReadTextFile( file ) );
lString8 txt2;
const char * s = txt.c_str();
lString8 import_file;
if ( LVProcessStyleSheetImport( s, import_file ) ) {
lString16 importFilename = LVMakeRelativeFilename( pathName, Utf8ToUnicode(import_file) );
//lString8 ifn = UnicodeToLocal(importFilename);
//const char * ifns = ifn.c_str();
if ( !importFilename.empty() ) {
LVStreamRef file2 = LVOpenFileStream( importFilename.c_str(), LVOM_READ );
if ( !file2.isNull() )
txt2 = UnicodeToUtf8( LVReadTextFile( file2 ) );
}
}
if ( !txt2.empty() )
txt2 << "\r\n";
css = txt2 + s;
return !css.empty();
}
bool matchEncoded( const lString8 & prefix )
{
if ( prefix.empty() )
return false;
return encoded.startsWith( prefix );
}
static void addInfoSection( lString8 & buf, lString8 data, const char * caption )
{
if ( !data.empty() )
buf << "<tr><td colspan=\"2\" style=\"font-weight: bold; text-align: center\">" << caption << "</td></tr>" << data;
}
