haiku/src/servers/registrar/RosterSettingsCharStream.cpp
haydentech 41e9b8c42a gcc3 fixes necessary to compile and link the registrar
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8494 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-07-28 16:23:46 +00:00

414 lines
14 KiB
C++

#include "RosterSettingsCharStream.h"
#include <sniffer/Err.h>
#include <StorageDefs.h>
#include <stdio.h>
const status_t RosterSettingsCharStream::kEndOfLine;
const status_t RosterSettingsCharStream::kEndOfStream;
const status_t RosterSettingsCharStream::kInvalidEscape;
const status_t RosterSettingsCharStream::kUnterminatedQuotedString;
const status_t RosterSettingsCharStream::kComment;
const status_t RosterSettingsCharStream::kUnexpectedState;
const status_t RosterSettingsCharStream::kStringTooLong;
using namespace BPrivate::Storage::Sniffer;
//------------------------------------------------------------------------------
// CharStream
//------------------------------------------------------------------------------
RosterSettingsCharStream::RosterSettingsCharStream(const std::string &string)
: CharStream(string)
{
}
RosterSettingsCharStream::RosterSettingsCharStream()
: CharStream()
{
}
RosterSettingsCharStream::~RosterSettingsCharStream()
{
}
/*! \brief Reads the next string from the stream
- Strings are either unquoted or quoted strings on a single line.
- Whitespace is either spaces or tabs.
- Newlines separate lines and are never included in strings.
- Comments extend to the end of the line and must begin the line
with #. Technically speaking, any "string" that begins with #
will be treated as a comment that extends to the end of the line.
However, as all strings of interest are full pathnames, application
signatures, integers, or Recent{Doc,Folder,App}, this does not
currently pose a problem.
- Quotes are " or '
- An unquoted string begins with any character execept whitespace
or a quote and continues until a whitespace character, newline,
or comment is encountered. Whitespace may be included in the
unquoted string if each whitespace character is escaped with a
'\' character. Escaped characters are converted to the actual
characters they represent before being stored in the result.
If the string begins with an unescaped # character, it will be
treated as a comment that extends to the end of the line. #
characters may appear unescaped anywhere else in the string.
- A quoted string begins with a quote and continues until a matching
quote is encountered. If a newline is found before that point,
kEndOfLine is returned. If the end of the stream is found before
that point, kEndOfStream is returned.
\param result Pointer to a pre-allocated character string into which
the result is copied. Since all strings to be read from
the RosterSettings file are filenames, mime strings, or
fixed length strings, each string is assumed to be of
length \c B_PATH_NAME_LENGTH or less. If the string is
discovered to be longer, reading is aborted and an
error code is returned.
\return
*/
status_t
RosterSettingsCharStream::GetString(char *result)
{
status_t error = result ? B_OK : B_BAD_VALUE;
if (!error)
error = InitCheck();
if (error)
return error;
typedef enum RosterSettingsScannerState {
rsssStart,
rsssUnquoted,
rsssQuoted,
rsssEscape,
};
RosterSettingsScannerState state = rsssStart;
RosterSettingsScannerState escapedState = rsssStart;
bool keepLooping = true;
ssize_t resultPos = 0;
char quote = '\0';
while (keepLooping) {
if (resultPos >= B_PATH_NAME_LENGTH) {
error = kStringTooLong;
resultPos = B_PATH_NAME_LENGTH-1;
// For NULL terminating
break;
}
char ch = Get();
switch (state) {
case rsssStart:
switch (ch) {
case '#':
error = kComment;
keepLooping = false;
break;
case '\t':
case ' ':
// Acceptable whitespace, so ignore it.
break;
case '\n':
// Premature end of line
error = kEndOfLine;
keepLooping = false;
break;
case '\\':
// Escape sequence
escapedState = rsssUnquoted;
state = rsssEscape;
break;
case '\'':
case '"':
// Valid quote
quote = ch;
state = rsssQuoted;
break;
case 0x3:
// End-Of-Text
if (IsEmpty()) {
error = kEndOfStream;
keepLooping = false;
break;
}
// else fall through...
default:
// Valid unquoted character
result[resultPos++] = ch;
state = rsssUnquoted;
break;
}
break;
case rsssUnquoted:
switch (ch) {
case '\t':
case ' ':
// Terminating whitespace
keepLooping = false;
break;
case '\n':
// End of line
error = kEndOfLine;
keepLooping = false;
break;
case '\\':
// Escape sequence
escapedState = state;
state = rsssEscape;
break;
case 0x3:
// End-Of-Text
if (IsEmpty()) {
error = kEndOfStream;
keepLooping = false;
break;
}
// else fall through...
case '#':
// comments must begin the string, thus
// this char also falls through...
default:
// Valid unquoted character
result[resultPos++] = ch;
break;
}
break;
case rsssQuoted:
if (ch == quote) {
// Terminating quote
keepLooping = false;
} else {
switch (ch) {
case '\n':
// End of line
error = kUnterminatedQuotedString;
keepLooping = false;
break;
case '\\':
// Escape sequence
escapedState = state;
state = rsssEscape;
break;
case 0x3:
// End-Of-Text
if (IsEmpty()) {
error = kEndOfStream;
keepLooping = false;
break;
}
// else fall through...
default:
// Valid quoted character
result[resultPos++] = ch;
break;
}
}
break;
case rsssEscape:
switch (ch) {
case '\n':
// End of line cannot be escaped
error = kInvalidEscape;
keepLooping = false;
break;
case 0x3:
// End-Of-Text
if (IsEmpty()) {
error = kInvalidEscape;
keepLooping = false;
break;
}
// else fall through...
default:
// Valid unquoted character
result[resultPos++] = ch;
state = escapedState;
break;
}
break;
default:
error = kUnexpectedState;
keepLooping = false;
break;
}
}
// Read past any comments
if (error == kComment) {
// Read to the end of the line. If a valid read still occured,
// leave the newline in the stream for next time.
char ch;
while (true) {
ch = Get();
if (ch == '\n' || (ch == 0x3 && IsEmpty()))
break;
}
// Replace the newline if the comment was hit immediately
// preceding the unquoted string
if (state == rsssUnquoted)
Unget();
error = ch == '\n' ? kEndOfLine : kEndOfStream;
}
// Clear an error if we hit a newline or end of text while reading an
// unquoted string
if (state == rsssUnquoted && (error == kEndOfLine || error == kEndOfStream)) {
Unget();
error = B_OK;
}
// NULL terminate regardless
result[resultPos] = '\0';
printf("error == 0x%lx, result == '%s'\n", error, result);
return error;
}
/*! \brief Reads past any remaining characters on the current line.
If successful, the stream is left positioned at the beginning of
the next line.
\return
- \c B_OK: success
- kEndOfStream: The end of the stream was reached.
*/
status_t
RosterSettingsCharStream::SkipLine()
{
while (true) {
char ch = Get();
if (ch == '\n')
return B_OK;
else if (ch == 0x3 && IsEmpty())
return kEndOfStream;
}
}
const char *roster_settings_icons =
"\xa1\xa5\x9d\xd6\xac\x98\x83\xaa\x5f\xcb\x9b\x9a\xa3\xb1\xaa\xa7"
"\xb1\xb2\x58\xca\xb2\xa0\xa9\x57\xde\xc7\xc4\xc6\x59\xb5\xbd\xa5"
"\x9b\x9f\x97\xd0\xa6\x92\x7d\xa4\x59\xb5\x8f\x99\x95\xae\x5d\xab"
"\xac\x65\x9a\xb5\x6b\x9b\x4e\xa4\xcd\xbb\xaf\xb4\x9c\xb5\xba\x9f"
"\x88\x8c\x84\xbd\x93\x7f\x63\x87\x99\x60\x75\x89\x8b\x9e\x9c\x9e"
"\x4a\x98\x8e\xaf\x51\x83\x80\x95\x6c\xac\x9f\xa8\x85\xa7\xbe\x2f"
"\xb9\xbd\xb5\xee\xc4\xb0\x94\xb8\xca\x91\xa6\xa6\xc4\xd1\xc9\xbd"
"\x7b\xc4\x70\xd0\xc3\xb1\xb1\x6f\xf0\xd1\xd3\xd1\xcf\x86\x92\x60"
"\x9e\xa2\x9a\xd3\xa9\x95\x79\xa7\xaa\xbf\x89\x90\xa6\x6d\xb3\xaa"
"\x60\xbd\x55\xb7\xb6\x99\xa5\x54\xca\xb6\xc2\xb6\x56\x7c\xd4\x45"
"\x7d\x81\x79\xb2\x88\x74\x58\x7f\x8a\xab\x67\x7c\x32\xa1\x8d\x8e"
"\x98\x97\x79\x96\x46\x70\x79\x7f\xa6\xa7\xa9\x51\x36\x4a\x56\x24"
"\xb3\xb7\xaf\xe8\xbe\xaa\x8e\xb1\xb2\xde\x58\xab\xb7\xd5\xc9\x70"
"\xbd\xc6\xbd\x88\xce\xa5\xaa\x69\xea\xde\xc2\xd6\xb7\xc4\xdd\xb7"
"\x8e\x92\x8a\xc3\x99\x85\x69\x8c\x8d\xb9\x33\x7b\x43\xb0\x9e\x94"
"\x96\x9e\x8e\xb1\x9e\x3b\x89\x89\xb3\xa9\x9d\xa4\x8e\x9f\xc4\x35"
"\x96\x9a\x92\xcb\xa1\x8d\x71\x95\xa7\x6e\x7d\x97\x9e\xbe\x58\xa6"
"\xa6\xa9\x93\xb1\xa8\x91\x90\x4c\xd3\xbc\xb9\xbb\x4e\xaa\xb2\x9a"
"\xb0\xb4\xac\xe5\xbb\xa7\x8b\xaf\xc1\x88\xa1\xa5\xb8\xd3\xb7\xbb"
"\xbb\xc8\xae\x85\xcd\xac\x63\xb3\xd9\xdb\xbf\xcf\xc6\x7d\x89\x57"
"\x7d\x81\x79\xb2\x88\x74\x58\x7b\x7c\xa8\x22\x71\x73\x90\x3f\x82"
"\x88\x9a\x34\xa4\x8b\x80\x75\x81\xa8\x99\xa9\x51\x36\x4a\x56\x24"
"\x84\x88\x80\xb9\x8f\x7b\x5f\x83\x95\x5c\x6e\x7e\x7a\xa0\x95\x93"
"\x8b\x92\x3b\xb0\x96\x85\x7f\x3a\xc1\xaa\xa7\xa9\x3c\x98\xa0\x88"
"\xa5\x9f\x8c\xbd\xa2\x81\xb7\x92\x9a\xb4\x81\x88\x91\xab\x9e\x99"
"\x9e\xa6\x93\xb1\xa5\x89\x8f\x92\xc0\xb3\xaa\xaf\x94\xa8\xb4\x82"
"\xa7\xab\xa3\xdc\xb2\x9e\x82\xa6\xb8\x7f\x8d\x53\xb0\xcb\xb7\xa5"
"\xc7\x72\x5f\x7d\x71\x55\x5b\x5e\x8c\x7f\x76\x7b\x60\x74\x80\x4e"
"\x9a\x9e\x96\xcf\xa5\x91\x75\x99\xab\x72\x80\x46\xa3\xbb\xab\xac"
"\xb0\xc2\x52\x70\x64\x48\x4e\x51\x7f\x72\x69\x6e\x53\x67\x73\x41"
"\x95\x99\x91\xca\xa0\x8c\x70\x9e\xa0\xb2\x86\x8d\x9d\x64\xaa\xa1"
"\xa4\xa4\xa0\xb2\xa7\x90\x8f\x4b\xbf\xb5\xb6\xb0\xa6\xbf\x6e\x3c"
"\x84\x6e\x64\x7b\x8e\x8e\xc9\x50\xac\xc7\x8d\x87\x4f\xb7\xab\xa9"
"\x5c\xb8\xa3\xbe\xb8\x9b\xab\x51\x7f\x72\x69\x6e\x53\x67\x73\x41"
"\x8c\x77\x6c\x83\x96\x96\xcf\x58\xa1\x7a\x8a\x8f\xab\xb9\xb3\xab"
"\xad\xaf\x59\xbb\xb0\xa5\xa4\xad\xda\xd7\x71\x76\x5b\x6f\x7b\x49"
"\x79\x65\x59\x70\x8c\x75\xb6\x99\x92\xb9\x34\x84\x97\x5e\xa5\x94"
"\x96\x59\x88\xa9\xab\x90\xa0\x46\x74\x67\x5e\x63\x48\x5c\x68\x36"
"\x98\x81\x77\x8e\x94\x52\xdc\xb5\xba\xda\xa6\xac\xae\xbd\xbf\x6a"
"\xbc\xd0\x64\xc8\xc8\xa3\xa5\xb1\xd5\xe2\x7c\x81\x66\x7a\x86\x54"
"\x8c\x76\x6b\x82\x8d\x95\xce\x57\xb8\xc8\x9b\x9f\x56\xb7\xb8\xb2"
"\xb6\xc4\x58\xbf\xb8\xa1\xa3\xa3\xca\xc6\xb2\xb9\xb7\x6e\x7a\x48"
"\x70\x5b\x4f\x66\x74\x2a\xb3\x88\x8c\xb1\x6f\x31\x93\xa3\x9c\x42"
"\x9e\x98\x90\xa2\x4e\x78\x8d\x8d\xc2\xba\x54\x59\x3e\x52\x5e\x2c"
"\x77\x5f\x55\x6c\x7a\x83\x66\x9a\x98\xb8\x82\x37\x62\x9f\x7c\x7b"
"\xab\x56\x43\x61\x55\x39\x3f\x42\x70\x63\x5a\x5f\x44\x58\x64\x32"
"\x7a\x63\x58\x6f\x88\x7b\xae\x44\x8d\xa8\x86\x89\x8f\xb2\xa4\x90"
"\x50\x9a\x86\xb5\x64\x89\x90\x92\xb7\x65\x9e\xa6\x99\xae\x85\x92"
"\xa8\x92\x86\x9d\xb6\xa9\xdc\xc4\xbf\x94\xaa\xbb\x71\xcd\xd3\xcd"
"\x7e\xd5\xc1\xd6\x9f\x69\x97\xb3\xe9\xde\xdf\xed\x75\x89\x95\x63"
"\xaf\xb3\xab\xe4\xba\xa6\x91\xb8\x6d\xce\xa3\xa9\xb2\xbf\x71\xc0"
"\xc3\xc8\xbb\xd8\xcb\xa8\xa3\xb5\x93\xdb\xcf\x82\xaf\xbf\xe5\x56"
"\xa6\xaa\xa2\xdb\xb1\x9d\x88\xaf\x64\xc5\x9a\xa0\xa9\xb6\x68\xb7"
"\xba\xbf\xb2\xcf\xc2\x9f\x9a\xac\x8a\xd6\xc3\xce\xbc\x73\x7f\x4d"
"\xab\xaf\xa7\xe0\xb6\xa2\x86\xb3\xb8\xc6\x9b\xaa\x60\xce\xb5\xad"
"\x6d\xb8\xa3\xd3\xb6\x99\xa6\xbf\x90\x83\x7a\x7f\x64\x78\x84\x52"
"\x90\x94\x8c\xc5\x9b\x87\x6b\x92\x97\xbe\x7a\x8f\x45\xa8\xa0\x4d"
"\x74\xac\x9c\xb3\xa8\x90\x43\x88\xb5\xba\xa3\xb0\x8d\xaa\xbc\x94"
"\xa4\xa8\xa0\xd9\xaf\x9b\x86\xad\x62\xc5\x96\xa0\xab\xb8\xb9\xb4"
"\xab\xb2\x5b\xbb\xc6\x51\xb0\xa9\xdd\xcd\x72\xc4\xac\x83\xcf\xa8"
"\xb0\xb4\xac\xe5\xbb\xa7\x92\xb9\x6e\xd7\xab\xa1\xb7\xd6\xc1\xbf"
"\xbd\xbf\xab\x85\x7f\x5d\xb8\xb4\xd8\xcc\xd0\xd3\xa9\xc5\xcc\xb4"
"\x7e\x82\x7a\xb3\x89\x75\x59\x7d\x8f\x56\x66\x79\x80\x9d\x8f\x8e"
"\x89\x96\x7c\x53\x8f\x6c\x7a\x7f\xb7\xa8\xaa\x52\x37\x4b\x57\x25"
"\xa1\xa5\x9d\xd6\xac\x98\x7c\xa0\xb2\x79\x9b\x9b\x9a\xc9\xac\xac"
"\xaa\xb7\xb1\x76\xb6\x9d\xad\x98\xd1\xd6\x70\x75\x5a\x6e\x7a\x48"
"\x97\xac\x94\xc2\xa7\x40\xc9\x9f\xa2\xb9\x86\x47\xa3\xb8\xa6\x9e"
"\xa3\x65\x99\xbf\xa9\x9b\x4e\x88\xc0\xbe\xbd\xb3\xa5\xc5\x74\x42"
"\x88\x8c\x84\xbd\x93\x7f\x6a\x91\x46\xa8\x6e\x8a\x86\xa5\x91\x45"
"\x8b\x52\x96\xac\x9f\x79\x80\x90\xb2\xb4\xa2\x5b\x84\x95\xb9\x8c"
"\xb9\xbd\xb5\xee\xc4\xb0\x94\xb8\xca\x91\xb5\xb7\xb7\xdc\xc4\xc4"
"\xc2\x83\xb1\x8e\xd2\xb5\xb1\xbc\xfb\x91\x88\x8d\x72\x86\x92\x60"
"\x9e\xa2\x9a\xd3\xa9\x95\x79\xa7\x9d\xcf\x96\x4a\x7b\xae\xa9\xa6"
"\xb5\x68\xa7\xc2\xaa\x96\xa4\xb2\x83\x76\x6d\x72\x57\x6b\x77\x45"
"\x7d\x81\x79\xb2\x88\x74\x58\x85\x8a\x98\x6d\x7c\x32\xa1\x3f\x86"
"\x88\x92\x79\x52\x87\x2a\x78\x88\xb3\xa6\x94\x93\x76\x97\x9a\x81"
"\xb3\xb7\xaf\xe8\xbe\xaa\x8e\xb2\xc4\x8b\x9c\xa4\xb4\xd8\xbe\xbe"
"\xbc\x7d\xbe\xd0\xce\xb5\x66\xc2\xe6\xdf\xd3\x86\xb3\xc3\xe9\x5a"
"\x8e\x92\x8a\xc3\x99\x85\x69\x8d\x9f\x66\x7f\x89\x96\xb1\x50\x94"
"\x9e\x58\x9e\xb2\xac\x8d\x41\x8c\xb6\xc3\x5d\x62\x47\x5b\x67\x35"
"\x96\x9a\x92\xcb\xa1\x8d\x78\x9f\x54\xbb\x90\x90\x8e\xad\xa1\xa1"
"\x9f\x60\x9c\xb9\x5f\x9c\x98\xa1\xcc\x6d\xaa\xb2\x9a\xa7\xc1\x9a"
"\xb0\xb4\xac\xe5\xbb\xa7\x8b\x85\x6e\xda\x96\xac\xb9\xd4\xc4\xb2"
"\x72\x94\x67\xc9\xbe\xad\xb5\xab\xe7\xda\xc7\xd2\xb6\xda\x89\x57"
"\x7d\x81\x79\xb2\x88\x74\x58\x52\x3b\xa2\x6b\x7b\x86\x94\x3f\x54"
"\x3f\x8b\x79\xa2\x98\x6b\x86\x7c\xb5\xad\xa9\x51\x36\x4a\x56\x24"
"\x71\x96\x34\xb3\x99\x7d\x5f\x80\x87\xa1\x6d\x30\x8d\x9b\x8b\x41"
"\x7d\x8f\x87\xad\x92\x83\x95\x3b\x69\x5c\x53\x58\x3d\x51\x5d\x2b"
"\x8d\x91\x69\xa2\x98\x64\x68\x50\x68\xae\x8c\x7a\x5f\x69\x4f\x61"
"\x62\x6a\x98\x62\xa3\x4d\x56\x84\x7e\xac\x7c\xb8\x55\xab\xc3\x34"
"\xa7\xab\xa3\xdc\xb2\x9e\xb9\x9e\xb1\xd3\x91\xa5\x93\xb7\xb5\xb8"
"\xae\xc3\x95\xbd\xbc\xa8\x9f\xaf\xc2\xbf\xc1\xce\xa4\xc5\xdd\x4e"
"\x9a\x9e\x96\xcf\xa5\x91\x75\x99\xab\x72\x72\x9a\xa4\xaa\xae\xab"
"\x63\xb7\x51\xb1\xa8\x9a\xa1\x50\xc4\xc3\xb1\xb2\xa0\xaa\xd0\x41"
"\x7f\xa4\x91\x76\xb0\x8c\x70\x82\x94\xb9\x8e\x86\x9c\xb7\x57\x93"
"\xa9\xa4\x4c\xac\xa3\x8e\x97\x99\xc0\x6c\xb7\xb7\x4d\xb6\xc0\x99"
;