usr/src/cmd/man/src/util/nsgmls.src/lib/SdText.cxx

   1 // Copyright (c) 1995 James Clark
   2 // See the file COPYING for copying permission.
   3 #pragma ident   "%Z%%M% %I%     %E% SMI"
   4
   5 #ifdef __GNUG__
   6 #pragma implementation
   7 #endif
   8 #include "splib.h"
   9 #include "SdText.h"
  10
  11 #ifdef SP_NAMESPACE
  12 namespace SP_NAMESPACE {
  13 #endif
  14
  15 SdText::SdText()
  16 {
  17 }
  18
  19 SdText::SdText(const Location &loc, Boolean lita)
  20 : lita_(lita)
  21 {
  22   items_.resize(items_.size() + 1);
  23   items_.back().loc = loc;
  24   items_.back().index = 0;
  25 }
  26
  27 void SdText::addChar(SyntaxChar c, const Location &loc)
  28 {
  29   if (items_.size() == 0
  30       || loc.origin().pointer() != items_.back().loc.origin().pointer()
  31       || loc.index() != (items_.back().loc.index()
  32                          + (chars_.size() - items_.back().index))) {
  33     items_.resize(items_.size() + 1);
  34     items_.back().loc = loc;
  35     items_.back().index = chars_.size();
  36   }
  37   chars_ += c;
  38 }
  39
  40 void SdText::swap(SdText &to)
  41 {
  42   items_.swap(to.items_);
  43   chars_.swap(to.chars_);
  44   {
  45     Boolean tem = to.lita_;
  46     to.lita_ = lita_;
  47     lita_ = tem;
  48   }
  49 }
  50
  51 Location SdText::endDelimLocation() const
  52 {
  53   Location loc(items_.back().loc);
  54   loc += chars_.size() - items_.back().index;
  55   return loc;
  56 }
  57
  58 SdTextItem::SdTextItem()
  59 {
  60 }
  61
  62 SdTextIter::SdTextIter(const SdText &text)
  63 : ptr_(&text),
  64   itemIndex_(0)
  65 {
  66 }
  67
  68 Boolean SdTextIter::next(const SyntaxChar *&ptr, size_t &length, Location &loc)
  69 {
  70   const Vector<SdTextItem> &items = ptr_->items_;
  71   if (itemIndex_ >= items.size())
  72     return 0;
  73   loc = items[itemIndex_].loc;
  74   const String<SyntaxChar> &chars = ptr_->chars_;
  75   size_t charsIndex = items[itemIndex_].index;
  76   ptr = chars.data() + charsIndex;
  77   if (itemIndex_ + 1 < items.size())
  78     length = items[itemIndex_ + 1].index - charsIndex;
  79   else
  80     length = chars.size() - charsIndex;
  81   itemIndex_++;
  82   return 1;
  83 }
  84
  85 #ifdef SP_NAMESPACE
  86 }
  87 #endif