/** * @file lltextparser.cpp * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #include "linden_common.h" #include "lltextparser.h" #include "llsd.h" #include "llsdserialize.h" #include "llerror.h" #include "lluuid.h" #include "llstring.h" #include "message.h" #include "llmath.h" #include "v4color.h" #include "lldir.h" // // Member Functions // LLTextParser::LLTextParser() : mLoaded(false) {} S32 LLTextParser::findPattern(const std::string &text, LLSD highlight) { if (!highlight.has("pattern")) return -1; std::string pattern=std::string(highlight["pattern"]); std::string ltext=text; if (!(bool)highlight["case_sensitive"]) { ltext = utf8str_tolower(text); pattern= utf8str_tolower(pattern); } size_t found=std::string::npos; switch ((S32)highlight["condition"]) { case CONTAINS: found = ltext.find(pattern); break; case MATCHES: found = (! ltext.compare(pattern) ? 0 : std::string::npos); break; case STARTS_WITH: found = (! ltext.find(pattern) ? 0 : std::string::npos); break; case ENDS_WITH: S32 pos = ltext.rfind(pattern); if (pos >= 0 && (ltext.length()-pattern.length()==pos)) found = pos; break; } return found; } LLSD LLTextParser::parsePartialLineHighlights(const std::string &text, const LLColor4 &color, EHighlightPosition part, S32 index) { loadKeywords(); //evil recursive string atomizer. LLSD ret_llsd, start_llsd, middle_llsd, end_llsd; for (S32 i=index;i<mHighlights.size();i++) { S32 condition = mHighlights[i]["condition"]; if ((S32)mHighlights[i]["highlight"]==PART && condition!=MATCHES) { if ( (condition==STARTS_WITH && part==START) || (condition==ENDS_WITH && part==END) || condition==CONTAINS || part==WHOLE ) { S32 start = findPattern(text,mHighlights[i]); if (start >= 0 ) { S32 end = std::string(mHighlights[i]["pattern"]).length(); S32 len = text.length(); EHighlightPosition newpart; if (start==0) { start_llsd[0]["text"] =text.substr(0,end); start_llsd[0]["color"]=mHighlights[i]["color"]; if (end < len) { if (part==END || part==WHOLE) newpart=END; else newpart=MIDDLE; end_llsd=parsePartialLineHighlights(text.substr( end ),color,newpart,i); } } else { if (part==START || part==WHOLE) newpart=START; else newpart=MIDDLE; start_llsd=parsePartialLineHighlights(text.substr(0,start),color,newpart,i+1); if (end < len) { middle_llsd[0]["text"] =text.substr(start,end); middle_llsd[0]["color"]=mHighlights[i]["color"]; if (part==END || part==WHOLE) newpart=END; else newpart=MIDDLE; end_llsd=parsePartialLineHighlights(text.substr( (start+end) ),color,newpart,i); } else { end_llsd[0]["text"] =text.substr(start,end); end_llsd[0]["color"]=mHighlights[i]["color"]; } } S32 retcount=0; //FIXME These loops should be wrapped into a subroutine. for (LLSD::array_iterator iter = start_llsd.beginArray(); iter != start_llsd.endArray();++iter) { LLSD highlight = *iter; ret_llsd[retcount++]=highlight; } for (LLSD::array_iterator iter = middle_llsd.beginArray(); iter != middle_llsd.endArray();++iter) { LLSD highlight = *iter; ret_llsd[retcount++]=highlight; } for (LLSD::array_iterator iter = end_llsd.beginArray(); iter != end_llsd.endArray();++iter) { LLSD highlight = *iter; ret_llsd[retcount++]=highlight; } return ret_llsd; } } } } //No patterns found. Just send back what was passed in. ret_llsd[0]["text"] =text; LLSD color_sd = color.getValue(); ret_llsd[0]["color"]=color_sd; return ret_llsd; } bool LLTextParser::parseFullLineHighlights(const std::string &text, LLColor4 *color) { loadKeywords(); for (S32 i=0;i<mHighlights.size();i++) { if ((S32)mHighlights[i]["highlight"]==ALL || (S32)mHighlights[i]["condition"]==MATCHES) { if (findPattern(text,mHighlights[i]) >= 0 ) { LLSD color_llsd = mHighlights[i]["color"]; color->setValue(color_llsd); return TRUE; } } } return FALSE; //No matches found. } std::string LLTextParser::getFileName() { std::string path=gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, ""); if (!path.empty()) { path = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, "highlights.xml"); } return path; } void LLTextParser::loadKeywords() { if (mLoaded) {// keywords already loaded return; } std::string filename=getFileName(); if (!filename.empty()) { llifstream file; file.open(filename.c_str()); if (file.is_open()) { LLSDSerialize::fromXML(mHighlights, file); } file.close(); mLoaded = true; } } bool LLTextParser::saveToDisk(LLSD highlights) { mHighlights=highlights; std::string filename=getFileName(); if (filename.empty()) { llwarns << "LLTextParser::saveToDisk() no valid user directory." << llendl; return FALSE; } llofstream file; file.open(filename.c_str()); LLSDSerialize::toPrettyXML(mHighlights, file); file.close(); return TRUE; }