ClientPattern.cc // ClientPattern.cc for Fluxbox Window Manager // Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net) // and Simon Bowden (rathnor at users.sourceforge.net) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // $Id: ClientPattern.cc,v 1.6 2003/12/17 01:19:39 fluxgen Exp $ #include "ClientPattern.hh" #include "RegExp.hh" #include "StringUtil.hh" #include "WinClient.hh" // use GNU extensions #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif // _GNU_SOURCE #include <iostream> #include <fstream> #include <string> #include <memory> #include <cstdio> // needed as well for index on some systems (e.g. solaris) #include <strings.h> #ifdef HAVE_CONFIG_H #include "config.h" #endif // HAVE_CONFIG_H #ifdef HAVE_SSTREAM #include <sstream> #define FB_istringstream istringstream #elif HAVE_STRSTREAM #include <strstream> #define FB_istringstream istrstream #else #error "You dont have sstream or strstream headers!" #endif // HAVE_STRSTREAM using namespace std; ClientPattern::ClientPattern(): m_matchlimit(0), m_nummatches(0) {} // parse the given pattern (to end of line) ClientPattern::ClientPattern(const char *str): m_matchlimit(0), m_nummatches(0) { /* A rough grammar of a pattern is: PATTERN ::= MATCH+ LIMIT? MATCH ::= '(' word ')' | '(' propertyname '=' word ')' LIMIT ::= '{' number '}' i.e. one or more match definitions, followed by an optional limit on the number of apps to match to Match definitions are enclosed in parentheses, and if no property name is given, then CLASSNAME is assumed. If no limit is specified, no limit is applied (i.e. limit = infinity) */ int had_error = 0; int pos = 0; string match; int err = 1; // for starting first loop while (had_error == 0 && err > 0) { err = FbTk::StringUtil::getStringBetween(match, str + pos, '(', ')', " \t\n", true); if (err > 0) { size_t eq = match.find_first_of('='); if (eq == match.npos) { if (!addTerm(match, NAME)) { had_error = pos + match.find_first_of('(') + 1; break; } } else { // need to determine the property used string memstr, expr; WinProperty prop; memstr.assign(match, 0, eq); // memstr = our identifier expr.assign(match, eq+1, match.length()); if (strcasecmp(memstr.c_str(), "name") == 0) { prop = NAME; } else if (strcasecmp(memstr.c_str(), "class") == 0) { prop = CLASS; } else if (strcasecmp(memstr.c_str(), "title") == 0) { prop = TITLE; } else { had_error = pos + match.find_first_of('(') + 1; break; } if (!addTerm(expr, prop)) { had_error = pos + ((str+pos) - index(str+pos, '=')) + 1; break; } } pos += err; } } if (pos == 0 && had_error == 0) { // no match terms given, this is not allowed had_error = 1; } if (had_error == 0) { // otherwise, we check for a number string number; err = FbTk::StringUtil::getStringBetween(number, str+pos, '{', '}'); if (err > 0) { FB_istringstream iss(number.c_str()); iss >> m_matchlimit; pos+=err; } // we don't care if there isn't one // there shouldn't be anything else on the line match = str + pos; err = match.find_first_not_of(" \t\n", pos); if ((unsigned) err != match.npos) { // found something, not good had_error = err; } } if (had_error > 0) { m_matchlimit = had_error; // delete all the terms while (!m_terms.empty()) { Term * term = m_terms.back(); delete term; m_terms.pop_back(); } } } ClientPattern::~ClientPattern() { // delete all the terms while (!m_terms.empty()) { delete m_terms.back(); m_terms.pop_back(); } } // return a string representation of this pattern std::string ClientPattern::toString() const { string pat; Terms::const_iterator it = m_terms.begin(); Terms::const_iterator it_end = m_terms.end(); for (; it != it_end; ++it) { pat.append(" ("); switch ((*it)->prop) { case NAME: // do nothing -> this is the default break; case CLASS: pat.append("class="); break; case TITLE: pat.append("title="); break; } pat.append((*it)->orig); pat.append(")"); } if (m_matchlimit > 0) { char num[20]; sprintf(num, " {%d}", m_matchlimit); pat.append(num); } return pat; } // does this client match this pattern? bool ClientPattern::match(const WinClient &win) const { if (m_matchlimit != 0 && m_nummatches >= m_matchlimit || m_terms.empty()) return false; // already matched out // regmatch everything // currently, we use an "AND" policy for multiple terms // changing to OR would require minor modifications in this function only Terms::const_iterator it = m_terms.begin(); Terms::const_iterator it_end = m_terms.end(); for (; it != it_end; ++it) { if (!(*it)->regexp.match(getProperty((*it)->prop, win))) return false; } return true; } // add an expression to match against // The first argument is a regular expression, the second is the member // function that we wish to match against. bool ClientPattern::addTerm(const std::string &str, WinProperty prop) { Term *term = new Term(str, true); term->orig = str; term->prop = prop; if (term->regexp.error()) { delete term; return false; } m_terms.push_back(term); return true; } std::string ClientPattern::getProperty(WinProperty prop, const WinClient &client) const { switch (prop) { case TITLE: return client.title(); break; case CLASS: return client.getWMClassClass(); break; case NAME: return client.getWMClassName(); break; } return client.getWMClassName(); } Fluxbox CVS-Jan-2003
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