/usr/share/doc/libqpdf-dev/examples/pdf-bookmarks.cc is in libqpdf-dev 8.0.2-3~16.04.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 | #include <iostream>
#include <string.h>
#include <stdlib.h>
#include <qpdf/QPDF.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/QTC.hh>
static char const* whoami = 0;
static enum { st_none, st_numbers, st_lines } style = st_none;
static bool show_open = false;
static bool show_targets = false;
static std::map<QPDFObjGen, int> page_map;
void usage()
{
std::cerr << "Usage: " << whoami << " [options] file.pdf [password]"
<< std::endl
<< "Options:" << std::endl
<< " -numbers give bookmarks outline-style numbers"
<< std::endl
<< " -lines draw lines to show bookmark hierarchy"
<< std::endl
<< " -show-open indicate whether a bookmark is initially open"
<< std::endl
<< " -show-targets show target if possible"
<< std::endl;
exit(2);
}
void print_lines(std::vector<int>& numbers)
{
for (unsigned int i = 0; i < numbers.size() - 1; ++i)
{
if (numbers.at(i))
{
std::cout << "| ";
}
else
{
std::cout << " ";
}
}
}
void generate_page_map(QPDF& qpdf)
{
std::vector<QPDFObjectHandle> pages = qpdf.getAllPages();
int n = 0;
for (std::vector<QPDFObjectHandle>::iterator iter = pages.begin();
iter != pages.end(); ++iter)
{
QPDFObjectHandle& oh = *iter;
page_map[oh.getObjGen()] = ++n;
}
}
void extract_bookmarks(QPDFObjectHandle outlines, std::vector<int>& numbers)
{
if (outlines.hasKey("/Title"))
{
// No default so gcc will warn on missing tag
switch (style)
{
case st_none:
QTC::TC("examples", "pdf-bookmarks none");
break;
case st_numbers:
QTC::TC("examples", "pdf-bookmarks numbers");
for (std::vector<int>::iterator iter = numbers.begin();
iter != numbers.end(); ++iter)
{
std::cout << *iter << ".";
}
std::cout << " ";
break;
case st_lines:
QTC::TC("examples", "pdf-bookmarks lines");
print_lines(numbers);
std::cout << "|" << std::endl;
print_lines(numbers);
std::cout << "+-+ ";
break;
}
if (show_open)
{
if (outlines.hasKey("/Count"))
{
QTC::TC("examples", "pdf-bookmarks has count");
int count = outlines.getKey("/Count").getIntValue();
if (count > 0)
{
// hierarchy is open at this point
QTC::TC("examples", "pdf-bookmarks open");
std::cout << "(v) ";
}
else
{
QTC::TC("examples", "pdf-bookmarks closed");
std::cout << "(>) ";
}
}
else
{
QTC::TC("examples", "pdf-bookmarks no count");
std::cout << "( ) ";
}
}
if (show_targets)
{
QTC::TC("examples", "pdf-bookmarks targets");
std::string target = "unknown";
// Only explicit destinations supported for now
if (outlines.hasKey("/Dest"))
{
QTC::TC("examples", "pdf-bookmarks dest");
QPDFObjectHandle dest = outlines.getKey("/Dest");
if ((dest.isArray()) && (dest.getArrayNItems() > 0))
{
QPDFObjectHandle first = dest.getArrayItem(0);
QPDFObjGen og = first.getObjGen();
if (page_map.count(og))
{
target = QUtil::int_to_string(page_map[og]);
}
}
std::cout << "[ -> " << target << " ] ";
}
}
std::cout << outlines.getKey("/Title").getUTF8Value() << std::endl;
}
if (outlines.hasKey("/First"))
{
numbers.push_back(0);
QPDFObjectHandle child = outlines.getKey("/First");
while (1)
{
++(numbers.back());
bool has_next = child.hasKey("/Next");
if ((style == st_lines) && (! has_next))
{
numbers.back() = 0;
}
extract_bookmarks(child, numbers);
if (has_next)
{
child = child.getKey("/Next");
}
else
{
break;
}
}
numbers.pop_back();
}
}
int main(int argc, char* argv[])
{
whoami = QUtil::getWhoami(argv[0]);
// For libtool's sake....
if (strncmp(whoami, "lt-", 3) == 0)
{
whoami += 3;
}
if ((argc == 2) && (strcmp(argv[1], "--version") == 0))
{
std::cout << whoami << " version 1.5" << std::endl;
exit(0);
}
int arg;
for (arg = 1; arg < argc; ++arg)
{
if (argv[arg][0] == '-')
{
if (strcmp(argv[arg], "-numbers") == 0)
{
style = st_numbers;
}
else if (strcmp(argv[arg], "-lines") == 0)
{
style = st_lines;
}
else if (strcmp(argv[arg], "-show-open") == 0)
{
show_open = true;
}
else if (strcmp(argv[arg], "-show-targets") == 0)
{
show_targets = true;
}
else
{
usage();
}
}
else
{
break;
}
}
if (arg >= argc)
{
usage();
}
char const* filename = argv[arg++];
char const* password = "";
if (arg < argc)
{
password = argv[arg++];
}
if (arg != argc)
{
usage();
}
try
{
QPDF qpdf;
qpdf.processFile(filename, password);
QPDFObjectHandle root = qpdf.getRoot();
if (root.hasKey("/Outlines"))
{
std::vector<int> numbers;
if (show_targets)
{
generate_page_map(qpdf);
}
extract_bookmarks(root.getKey("/Outlines"), numbers);
}
else
{
std::cout << filename << " has no bookmarks" << std::endl;
}
}
catch (std::exception &e)
{
std::cerr << whoami << " processing file " << filename << ": "
<< e.what() << std::endl;
exit(2);
}
return 0;
}
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