OpenSystemsDevelopment / qpdf

Commit 86e7cacff1b34cb251794974e675c35a76429722

Authored by m-holger
1 parent 873562f4

Make BaseDictionary iterable

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Showing 1 changed file with 78 additions and 0 deletions
libqpdf/qpdf/QPDFObjectHandle_private.hh
  View file @86e7cac
... ... @@ -42,6 +42,84 @@ namespace qpdf
42 42 class BaseDictionary: public BaseHandle
43 43 {
44 44 public:
  45 + using iterator = std::map<std::string, QPDFObjectHandle>::iterator;
  46 + using const_iterator = std::map<std::string, QPDFObjectHandle>::const_iterator;
  47 + using reverse_iterator = std::map<std::string, QPDFObjectHandle>::reverse_iterator;
  48 + using const_reverse_iterator =
  49 + std::map<std::string, QPDFObjectHandle>::const_reverse_iterator;
  50 +
  51 + iterator
  52 + begin()
  53 + {
  54 + if (auto d = as<QPDF_Dictionary>()) {
  55 + return d->items.begin();
  56 + }
  57 + return {};
  58 + }
  59 +
  60 + iterator
  61 + end()
  62 + {
  63 + if (auto d = as<QPDF_Dictionary>()) {
  64 + return d->items.end();
  65 + }
  66 + return {};
  67 + }
  68 +
  69 + const_iterator
  70 + cbegin()
  71 + {
  72 + if (auto d = as<QPDF_Dictionary>()) {
  73 + return d->items.cbegin();
  74 + }
  75 + return {};
  76 + }
  77 +
  78 + const_iterator
  79 + cend()
  80 + {
  81 + if (auto d = as<QPDF_Dictionary>()) {
  82 + return d->items.cend();
  83 + }
  84 + return {};
  85 + }
  86 +
  87 + reverse_iterator
  88 + rbegin()
  89 + {
  90 + if (auto d = as<QPDF_Dictionary>()) {
  91 + return d->items.rbegin();
  92 + }
  93 + return {};
  94 + }
  95 +
  96 + reverse_iterator
  97 + rend()
  98 + {
  99 + if (auto d = as<QPDF_Dictionary>()) {
  100 + return d->items.rend();
  101 + }
  102 + return {};
  103 + }
  104 +
  105 + const_reverse_iterator
  106 + crbegin()
  107 + {
  108 + if (auto d = as<QPDF_Dictionary>()) {
  109 + return d->items.crbegin();
  110 + }
  111 + return {};
  112 + }
  113 +
  114 + const_reverse_iterator
  115 + crend()
  116 + {
  117 + if (auto d = as<QPDF_Dictionary>()) {
  118 + return d->items.crend();
  119 + }
  120 + return {};
  121 + }
  122 +
45 123 // The following methods are not part of the public API.
46 124 bool hasKey(std::string const& key) const;
47 125 QPDFObjectHandle getKey(std::string const& key) const;
... ...