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/*
* GraphLCD skin library
*
* string.h - skin string class
*
* This file is released under the GNU General Public License. Refer
* to the COPYING file distributed with this package.
*
* based on text2skin
*
*/
#include <syslog.h>
#include "skin.h"
#include "object.h"
#include "string.h"
namespace GLCD
{
tSkinToken::tSkinToken(void)
: Index(-1)
{
}
tSkinToken::tSkinToken(int id, std::string n, uint32_t o, const std::string & a)
: Id(id),
Name(n),
Offset(o),
Attrib(a),
MaxItems(-1),
Index(-1)
{
}
bool operator< (const tSkinToken & A, const tSkinToken & B)
{
return A.Id == B.Id
? A.Name == B.Name
? A.Attrib == B.Attrib
? A.Index < B.Index
: A.Attrib < B.Attrib
: A.Name < B.Name
: A.Id < B.Id;
}
std::string tSkinToken::Token(const tSkinToken & Token)
{
std::string result = (std::string) "{" + Token.Name;
//if (Token.Attrib.length() > 0)
// result += ":" + Token.Attrib;
result += "}";
return result;
}
cSkinString::tStringList cSkinString::mStrings;
cSkinString::cSkinString(cSkinObject *Parent, bool Translate)
: mObject(Parent),
mSkin(Parent->Skin()),
mTranslate(Translate)
{
mStrings.push_back(this);
}
cSkinString::~cSkinString()
{
tStringList::iterator it = mStrings.begin();
for (; it != mStrings.end(); ++it) {
if ((*it) == this) {
mStrings.erase(it);
break;
}
}
}
void cSkinString::Reparse(void)
{
tStringList::iterator it = mStrings.begin();
for (; it != mStrings.end(); ++it) {
if ((*it)->mTranslate && (*it)->mText.length() > 0)
(*it)->Parse((*it)->mOriginal, true);
}
}
bool cSkinString::Parse(const std::string & Text, bool Translate)
{
std::string trans = Translate ? mSkin->Config().Translate(Text) : Text;
const char * ptr, * last;
bool inToken = false;
bool inAttrib = false;
int offset = 0;
if (trans[0] == '#')
{
cSkinVariable * variable = mSkin->GetVariable(trans.substr(1));
if (variable)
{
trans = (std::string) variable->Value();
syslog(LOG_ERR, "string variable %s", trans.c_str());
}
}
//Dprintf("parsing: %s\n", Text.c_str());
mOriginal = Text;
mText = "";
mTokens.clear();
ptr = trans.c_str();
last = trans.c_str();
for (; *ptr; ++ptr) {
if (inToken && *ptr == '\\') {
if (*(ptr + 1) == '\0') {
syslog(LOG_ERR, "ERROR: Stray \\ in token attribute\n");
return false;
}
++ptr;
continue;
}
else if (*ptr == '{') {
if (inToken) {
syslog(LOG_ERR, "ERROR: Unexpected '{' in token");
return false;
}
mText.append(last, ptr - last);
last = ptr + 1;
inToken = true;
}
else if (*ptr == '}' || (inToken && *ptr == ':')) {
if (!inToken) {
syslog(LOG_ERR, "ERROR: Unexpected '}' outside of token");
return false;
}
if (inAttrib) {
if (*ptr == ':') {
syslog(LOG_ERR, "ERROR: Unexpected ':' inside of token attribute");
return false;
}
int pos = -1;
std::string attr;
attr.assign(last, ptr - last);
while ((pos = attr.find('\\', pos + 1)) != -1) {
switch (attr[pos + 1]) {
case 'n':
attr.replace(pos, 2, "\n");
break;
default:
attr.erase(pos, 1);
}
}
tSkinToken &lastToken = mTokens[mTokens.size() - 1];
if (attr == "clean")
lastToken.Attrib = aClean;
else if (attr == "rest")
lastToken.Attrib = aRest;
else {
char *end;
int n = strtol(attr.c_str(), &end, 10);
//Dprintf("attr: %s, n: %d, end: |%s|\n", attr.c_str(), n, end);
if (end != attr.c_str() && *end == '\0') {
//Dprintf("a number\n");
lastToken.Attrib = n;
} else
lastToken.Attrib = attr;
}
inAttrib = false;
inToken = false;
} else {
if (true)
{
std::string tmp;
tmp.assign(last, ptr - last);
tSkinToken token(mSkin->Config().GetTokenId(tmp), tmp, offset, "");
mTokens.push_back(token);
}
else
{
syslog(LOG_ERR, "ERROR: Unexpected token {%.*s}", (int)(ptr - last), last);
return false;
}
if (*ptr == ':')
inAttrib = true;
else
inToken = false;
}
last = ptr + 1;
}
else if (!inToken)
++offset;
}
if (inToken) {
syslog(LOG_ERR, "ERROR: Expecting '}' in token");
return false;
}
mText.append(last, ptr - last);
if (mTranslate && !Translate && mText.length() > 0)
Parse(Text, true);
return true;
}
cType cSkinString::Evaluate(void) const
{
std::string result;
int offset = 0;
if (mText.length() == 0 && mTokens.size() == 1)
return mSkin->Config().GetToken(mTokens[0]);
for (uint32_t i = 0; i < mTokens.size(); ++i) {
result.append(mText.c_str() + offset, mTokens[i].Offset - offset);
result.append(mSkin->Config().GetToken(mTokens[i]));
offset = mTokens[i].Offset;
}
result.append(mText.c_str() + offset);
return result;
}
} // end of namespace
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