OP_BundlePattern.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        OP_BundlePattern.h ( OP Library, C++)
 *
 * COMMENTS:    Pattern tokens for a bundle.  This breaks up the pattern string
 *              into managable tokens which can be processed easily
 */

#ifndef __OP_BundlePattern__
#define __OP_BundlePattern__

#include "OP_API.h"
#include <UT/UT_Array.h>
#include <UT/UT_SharedPtr.h>
#include <UT/UT_String.h>
#include <UT/UT_StringArray.h>
#include <UT/UT_StringMap.h>

class OP_Node;
class OP_BundleFilter;
class UT_Regex;

class OP_API OP_BundlePattern {
public:
    static OP_BundlePattern     *allocPattern(const char *str);
    static void                  freePattern(OP_BundlePattern *pattern);

    int          argc() const   { return myPatterns.entries(); }
    const char  *argv(int i) const
                 {
                     return myPatterns(i).org_str;
                 }

    bool         isAllPattern() const           { return myAllPattern; }
    bool         isNullPattern() const          { return myNullPattern; }

    bool         hasPattern(const char *str) const;

    bool         match(const OP_Node *node, const char *relativepath,
                       bool assume_kids_included) const;

    //
    // Raw, single match function.  This can be used in filter traversal.
    bool         matchNode(const OP_Node *node,
                           const char *relativetopath,
                           bool result_if_no_match,
                           int *excluded) const;

protected:
     OP_BundlePattern(const char *str);
    ~OP_BundlePattern();

private:
    struct Pattern
    {
        bool             is_pattern;    // false if just a plain string
        bool             is_negated;    // negated pattern (starts with a ^)
        bool             is_relative;   // Relative pattern (starts with './')
        const char      *org_str;       // The original string
        const char      *str;           // Adjusted string (for carat)
        const char      *rel_str;       // Relative string (incl carat)
        UT_SharedPtr<UT_Regex> pattern;
        UT_SharedPtr<UT_Regex> rel_pattern;
    };
    
    const char          *myPatternToken;
    
    // A copy of the original string. Just used as a storage for the tokenized
    // parts.
    UT_String            myPattern;

    // Extra storage for modified strings
    UT_StringArray       myModifiedPatterns;
    
    // The list of sub-patterns.
    UT_Array<Pattern>    myPatterns;
    
    // Here we store a map into the pattern array of strings that are
    // "plain" and contain no glob/regex characters.
    typedef UT_StringMap<exint> PlainPatternMap;
    
    PlainPatternMap      myPlainPatterns;
    PlainPatternMap      myRelPatterns;
    
    int                  myRefCount;
    bool                 myAllPattern;
    bool                 myNullPattern;
};
#endif