ClientPattern Class Reference #include <ClientPattern.hh> Inheritance diagram for ClientPattern: List of all members. Public Types enum   WinProperty { TITLE, CLASS, NAME } Public Member Functions   ClientPattern (const char *str) std::string  toString () const   a string representation of this pattern bool  match (const WinClient &win) const   Does this client match this pattern? bool  addTerm (const std::string &str, WinProperty prop) void  addMatch () void  delMatch () bool  operator== (const WinClient &win) const int  error () const std::string  getProperty (WinProperty prop, const WinClient &winclient) const Detailed Description This class represents a "pattern" that we can match against a Window based on various properties. Definition at line 41 of file ClientPattern.hh. Constructor & Destructor Documentation ClientPattern::ClientPattern (  const char *  str  )  [explicit]   Create the pattern from the given string as it would appear in the apps file. the bool value returns the character at which there was a parse problem, or -1. Definition at line 67 of file ClientPattern.cc. References addTerm(), and match(). : 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(); } } } Member Function Documentation bool ClientPattern::addTerm (  const std::string &  str, WinProperty  prop )    Add an expression to match against Parameters: str  is a regular expression prop  is the member function that we wish to match against Returns: false if the regexp wasn't valid Definition at line 224 of file ClientPattern.cc. Referenced by ClientPattern(). { 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; } int ClientPattern::error (   )  const [inline]   If there are no terms, then there is assumed to be an error the column of the error is stored in m_matchlimit Definition at line 80 of file ClientPattern.hh. { return m_terms.empty() ? m_matchlimit : 0; } The documentation for this class was generated from the following files: ClientPattern.hh ClientPattern.cc Fluxbox CVS-Jan-2003
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