contrib/src/stc/scintilla/include/PropSet.h

   1 // Scintilla source code edit control
   2 /** @file PropSet.h
   3  ** A Java style properties file module.
   4  **/
   5 // Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #ifndef PROPSET_H
   9 #define PROPSET_H
  10 #include "SString.h"
  11
  12 bool EqualCaseInsensitive(const char *a, const char *b);
  13
  14 bool isprefix(const char *target, const char *prefix);
  15
  16 struct Property {
  17         unsigned int hash;
  18         char *key;
  19         char *val;
  20         Property *next;
  21         Property() : hash(0), key(0), val(0), next(0) {}
  22 };
  23
  24 /**
  25  */
  26 class PropSet {
  27 protected:
  28         enum { hashRoots=31 };
  29         Property *props[hashRoots];
  30         Property *enumnext;
  31         int enumhash;
  32         static unsigned int HashString(const char *s, size_t len) {
  33                 unsigned int ret = 0;
  34                 while (len--) {
  35                         ret <<= 4;
  36                         ret ^= *s;
  37                         s++;
  38                 }
  39                 return ret;
  40         }
  41         static bool IncludesVar(const char *value, const char *key);
  42
  43 public:
  44         PropSet *superPS;
  45         PropSet();
  46         ~PropSet();
  47         void Set(const char *key, const char *val, int lenKey=-1, int lenVal=-1);
  48         void Set(const char *keyVal);
  49         void Unset(const char *key, int lenKey=-1);
  50         void SetMultiple(const char *s);
  51         SString Get(const char *key);
  52         SString GetExpanded(const char *key);
  53         SString Expand(const char *withVars, int maxExpands=100);
  54         int GetInt(const char *key, int defaultValue=0);
  55         SString GetWild(const char *keybase, const char *filename);
  56         SString GetNewExpand(const char *keybase, const char *filename="");
  57         void Clear();
  58         char *ToString();       // Caller must delete[] the return value
  59         bool GetFirst(char **key, char **val);
  60         bool GetNext(char **key, char **val);
  61
  62 private:
  63         // copy-value semantics not implemented
  64         PropSet(const PropSet &copy);
  65         void operator=(const PropSet &assign);
  66 };
  67
  68 /**
  69  */
  70 class WordList {
  71 public:
  72         // Each word contains at least one character - a empty word acts as sentinel at the end.
  73         char **words;
  74         char **wordsNoCase;
  75         char *list;
  76         int len;
  77         bool onlyLineEnds;      ///< Delimited by any white space or only line ends
  78         bool sorted;
  79         int starts[256];
  80         WordList(bool onlyLineEnds_ = false) :
  81                 words(0), wordsNoCase(0), list(0), len(0), onlyLineEnds(onlyLineEnds_), sorted(false) {}
  82         ~WordList() { Clear(); }
  83         operator bool() { return len ? true : false; }
  84         char *operator[](int ind) { return words[ind]; }
  85         void Clear();
  86         void Set(const char *s);
  87         char *Allocate(int size);
  88         void SetFromAllocated();
  89         bool InList(const char *s);
  90         const char *GetNearestWord(const char *wordStart, int searchLen,
  91                 bool ignoreCase = false, SString wordCharacters="", int wordIndex = -1);
  92         char *GetNearestWords(const char *wordStart, int searchLen,
  93                 bool ignoreCase=false, char otherSeparator='\0', bool exactLen=false);
  94 };
  95
  96 inline bool IsAlphabetic(unsigned int ch) {
  97         return ((ch >= 'A') && (ch <= 'Z')) || ((ch >= 'a') && (ch <= 'z'));
  98 }
  99
 100
 101 #ifdef _MSC_VER
 102 // Visual C++ doesn't like the private copy idiom for disabling
 103 // the default copy constructor and operator=, but it's fine.
 104 #pragma warning(disable: 4511 4512)
 105 #endif
 106
 107 #endif