src/chset.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation
   5 #endif
   6
   7 #include "chset.h"
   8 #include "support/filetools.h"
   9 #include "lyxlex.h"
  10 #include "debug.h"
  11
  12
  13 CharacterSet::CharacterSet()
  14 {
  15         map_=0;
  16 }
  17
  18
  19 CharacterSet::~CharacterSet()
  20 {
  21         freeMap();
  22 }
  23
  24
  25 void CharacterSet::freeMap()
  26 {
  27         Cdef* t;
  28         while(map_) {
  29                 t=map_;
  30                 map_=map_->next;
  31                 delete t;
  32         }
  33
  34         name_.clear();
  35 }
  36
  37
  38 bool CharacterSet::loadFile(const string& fname)
  39 {
  40         freeMap();
  41
  42         if (fname.empty() || fname=="ascii")
  43                 return true;    // ascii 7-bit
  44
  45         // open definition file
  46         lyxerr[Debug::KBMAP]
  47                 << "Opening keymap file " << fname << ".cdef" << endl;
  48         string filename = LibFileSearch("kbd", fname.c_str(), "cdef");
  49         FilePtr f(filename, FilePtr::read);
  50         if (filename.empty() || !f()) {
  51                 lyxerr << "Unable to open keymap file" << endl;
  52                 return true;            // no definition, use 7-bit ascii
  53         }
  54
  55         name_=fname;
  56
  57         // now read the file
  58         LyXLex lex(0,0);
  59         lex.setFile(f());
  60
  61         bool error=false;
  62         string str;
  63         int n;
  64
  65         while(lex.IsOK() && !error) {
  66
  67                 switch(lex.lex()){
  68                 case LyXLex::LEX_FEOF :
  69                         lyxerr[Debug::KBMAP] << "End of parsing of .cdef file"
  70                                              << endl;
  71                         break;
  72                 default:
  73                         // Get Integer
  74                         n=lex.GetInteger();
  75                         if (n<0) {
  76                                 error=true;
  77                                 continue;
  78                         }
  79
  80                         // Get String
  81                         lex.next(true);
  82                         str=lex.GetString();
  83
  84                         Cdef* tempc=new Cdef;
  85                         tempc->str=str;
  86                         tempc->ic=n;
  87                         tempc->next=map_;
  88                         map_=tempc;
  89
  90                         if (lyxerr.debugging(Debug::KBMAP))
  91                                 lyxerr << "Chardef: " << n
  92                                        << " to [" << tempc->str << "]" << endl;
  93                         break;
  94                 }
  95         }
  96
  97         return false;
  98 }
  99
 100
 101 bool CharacterSet::encodeString(string & str)
 102 {
 103         Cdef *t=map_;
 104
 105         while(t) {
 106                 if (t->str==str) {
 107                         // Can this fail? Why is ic an unsigned char?
 108                         str = char(t->ic);
 109                         break;
 110                 }
 111                 t=t->next;
 112         }
 113         return (t!=0);
 114 }
 115
 116
 117 string CharacterSet::getName()
 118 {
 119         return name_;
 120 }