IFileStream::IFileStream(const UCS2String& name) : IStream(name), f(NULL)
{
if(pov_stricmp(UCS2toASCIIString(name).c_str(), "stdin") == 0)
{
f = stdin;
}
else if((pov_stricmp(UCS2toASCIIString(name).c_str(), "stdout") == 0) ||
(pov_stricmp(UCS2toASCIIString(name).c_str(), "stderr") == 0))
{
f = NULL;
}
else
{
f = POV_UCS2_FOPEN(name, "rb");
}
fail = (f == NULL);
}
int InferFileTypeFromExt(const UCS2String& ext) // TODO FIXME - belongs in backend
{
// TODO FIXME - better compare in the string domain
string str = UCS2toASCIIString(ext);
for (int i = 0; i < POV_File_Count; i++)
{
// TODO - checking whether extension matches is required at other places, too
for (int j = 0; j < POV_FILE_EXTENSIONS_PER_TYPE; j ++)
{
if ( (strlen(gPOV_File_Extensions[i].ext[j]) > 0) &&
(pov_stricmp (gPOV_File_Extensions[i].ext[j], str.c_str()) == 0) )
{
return (i);
}
}
}
return NO_FILE;
}
bool ProcessOptions::Parse_INI_String_Smartmode(ITextStream *file)
{
ITextStream::FilePos backtrackpos = file->tellg();
bool result = false; // false - end string here, true - continue parsing string
struct INI_Parser_Table *table = parse_ini_table;
char *key = NULL;
(void)Parse_INI_Skip_Space(file, false);
switch(file->getchar())
{
// end of file
case EOF:
break; // return false, parsing more of the string simply is not possible
// INI file comment
case ';':
case '#':
break; // return false, this is a comment which terminates the string
// INI value list separator
case ',':
break; // return false, this is a value list of unquoted strings
// POV-Ray-style INI file with command-line switch
case '+':
case '-':
// POV-Ray-style INI file with system specific command-line switch on some systems (i.e. Windos)
#if(FILENAME_SEPARATOR != '/')
case '/':
#endif
if(isalpha(file->getchar()))
break; // return false, this is most likely a command-line
else
file->seekg(backtrackpos); // most likely an unquoted string, so allow parsing it as a whole
// INI file option
default:
// read the key string
key = Parse_INI_String(file);
if(key != NULL)
{
// find the keyword
while(table->keyword != NULL)
{
if(pov_stricmp(table->keyword, key) == 0)
break;
table++;
}
// if no valid keyword has been found
if(table->keyword == NULL)
{
result = true; // return true, this is most likely an unquoted path
ParseErrorAt(file,
"Most likely detected an unquoted string with spaces in INI file. Assuming string ends at the of the line.\n"
"Make sure all strings with spaces are properly quoted in the INI file.\n"
"Use either \" or \' to quote strings. For details, please check the user manual!");
}
delete[] key;
key = NULL;
}
break; // return false, unless the code above did not find a valid keyword
}
file->seekg(backtrackpos);
return result;
}
int ProcessOptions::Parse_INI_Option(ITextStream *file, POVMSObjectPtr obj)
{
struct INI_Parser_Table *table = parse_ini_table;
char *value = NULL;
char *key = NULL;
char chr = 0;
int err = kNoErr;
// read the key string
key = Parse_INI_String(file);
if(key == NULL)
{
ParseErrorAt(file, "Expected key in INI file, no key was found.");
return kParseErr;
}
// find the keyword
while(table->keyword != NULL)
{
if(pov_stricmp(table->keyword, key) == 0)
break;
table++;
}
// return if no valid keyword has been found
if(table->keyword == NULL)
{
ParseErrorAt(file, "Unknown key '%s' in INI file.", key);
delete[] key;
return kParseErr;
}
else
{
delete[] key;
key = NULL;
}
// skip any spaces
(void)Parse_INI_Skip_Space(file, false);
// expect the equal sign
if(file->getchar() != '=')
return kParseErr;
// skip any spaces
(void)Parse_INI_Skip_Space(file, false);
// if the string is quoted, parse it matching quotes
chr = file->getchar();
if((chr == '\"') || (chr == '\''))
value = Parse_INI_String(file, chr);
// if there were no quotes, just read up to the next space or newline
else
{
file->ungetchar(chr);
value = Parse_INI_String(file, -2, true);
}
if(value == NULL)
{
ParseErrorAt(file, "Expected value in INI file, no value was found.");
return kParseErr;
}
err = Process_INI_Option(table, value, obj);
delete[] value;
value = NULL;
// skip any spaces
(void)Parse_INI_Skip_Space(file, false);
// if there is a comma, parse more values and append them
chr = file->getchar();
if(chr == ',')
{
// read more value strings
while((file->eof() == false) && (err == kNoErr))
{
// skip any spaces
(void)Parse_INI_Skip_Space(file, false);
// if the string is quoted, parse it matching quotes
chr = file->getchar();
if((chr == '\"') || (chr == '\''))
value = Parse_INI_String(file, chr);
// if there were no quotes, just read up to the next space or newline
else
{
file->ungetchar(chr);
value = Parse_INI_String(file, -2);
}
if(value == NULL)
{
ParseErrorAt(file, "Expected value in INI file, no value was found.");
return kParseErr;
}
err = Process_INI_Option(table, value, obj);
delete[] value;
value = NULL;
// skip any spaces
(void)Parse_INI_Skip_Space(file, false);
// if there is no other comma, stop parsing values
chr = file->getchar();
if(chr != ',')
{
file->ungetchar(chr);
break;
}
}
}
else
file->ungetchar(chr);
return err;
}
int ProcessOptions::ParseFile(const char *filespec, POVMSObjectPtr obj)
{
ITextStream *file = NULL;
const char *currentsection = NULL;
char *sectionname = NULL;
char *filename = NULL;
int err = kNoErr;
POVMSObjectPtr section = NULL;
int currentline = 1;
// split the INI files specification into filename and optional section name
err = Parse_INI_Specification(filespec, filename, sectionname);
if(err == kNoErr)
{
file = OpenFileForRead(filename, obj);
if(file == NULL)
{
// all errors here are non-fatal, the calling code has to decide if an error is fatal
ParseError("Cannot open INI file '%s'.", filename);
err= kCannotOpenFileErr;
}
}
if(err == kNoErr)
{
int token = 0;
// apply options prior to any named section
section = obj;
// read the whole file to the end
while((file->eof() == false) && (err == kNoErr))
{
currentline += Parse_INI_Skip_Space(file, true);
token = file->getchar();
// INI file section name
if(token == '[')
{
// free old section name, if any
if(currentsection != NULL)
delete[] currentsection;
// read until the section name end marker
currentsection = Parse_INI_String(file, ']');
// if the user specified a section name, compare the two and enable reading
if((sectionname != NULL) && (currentsection != NULL))
{
if(pov_stricmp(currentsection, sectionname) == 0)
section = obj; // named section matches specified section name, apply options
else
section = NULL; // named section does not match specified section name, ignore options
}
// if there was no user specified section name, ignore all named sections
else
section = NULL; // no section name was specified, ignore options in named section
}
// skip lines that do not belong to the desired sections
else if(section == NULL)
{
currentline += Parse_INI_Skip_Line(file);
}
// fully process lines in desired sections
else
{
switch(token)
{
// end of file
case EOF:
break;
// quoted string
case '\"':
case '\'':
err = kFalseErr;
break;
// POV-Ray-style INI file with command-line switch
case '+':
case '-':
// POV-Ray-style INI file with system specific command-line switch on some systems (i.e. Windos)
#if(FILENAME_SEPARATOR != '/')
case '/':
#endif
err = Parse_INI_Switch(file, token, section);
break;
// INI file comment
case ';':
case '#':
currentline += Parse_INI_Skip_Line(file);
break;
// INI file option
default:
if(isalnum(token) || (token == '_'))
{
file->ungetchar(token);
ITextStream::FilePos backtrackpos = file->tellg();
err = Parse_INI_Option(file, section);
// only one option is allowed per line
if(err == kNoErr)
currentline += Parse_INI_Skip_Line(file);
else if(err == kParseErr)
{
file->seekg(backtrackpos);
err = kFalseErr;
}
}
else
err = kFalseErr;
break;
}
// if nothing else was appropriate, assume it is some other kind of string requiring special attention
if(err == kFalseErr)
{
char *plainstring = NULL;
if((token == '\"') || (token == '\''))
plainstring = Parse_INI_String(file, token, true);
// if there were no quotes, just read up to the next space or newline
else
plainstring = Parse_INI_String(file, -1, true);
err = ProcessUnknownString(plainstring, obj);
if(plainstring != NULL)
delete[] plainstring;
}
}
}
// all errors here are non-fatal, the calling code has to decide if an error is fatal
if(err != kNoErr)
{
if(currentsection != NULL)
{
ParseErrorAt(file,
"Cannot continue to process INI file '%s' due to a parse error in line %d section '%s'.\n"
"This is not a valid INI file. Check the file for syntax errors, correct them, and try again!\n"
"Valid options in INI files are explained in detail in the reference part of the documentation.",
filename, currentline, currentsection);
}
else
{
ParseErrorAt(file,
"Cannot continue to process INI file '%s' due to a parse error in line %d.\n"
"This is not a valid INI file. Check the file for syntax errors, correct them, and try again!\n"
"Valid options in INI files are explained in detail in the reference part of the documentation.",
filename, currentline);
}
}
if(currentsection != NULL)
delete[] currentsection;
}
if(filename != NULL)
delete[] filename;
if(sectionname != NULL)
delete[] sectionname;
if(file != NULL)
delete file;
return err;
}
int ProcessOptions::Parse_CL_Option(const char *&commandline, POVMSObjectPtr obj, bool singleswitch)
{
struct INI_Parser_Table *table = parse_ini_table;
char *value = NULL;
char *key = NULL;
char chr = 0;
int err = kNoErr;
// read the key string
key = Parse_CL_String(commandline);
if(key == NULL)
{
ParseError("Expected INI file key on command-line, no key was found.");
return kParseErr;
}
// find the keyword
while(table->keyword != NULL)
{
if(pov_stricmp(table->keyword, key) == 0)
break;
table++;
}
// return false if no valid keyword has been found
if(table->keyword == NULL)
{
delete[] key;
return kParseErr;
}
else
{
delete[] key;
key = NULL;
}
// expect the equal sign
if(*commandline != '=')
return kParseErr;
commandline++;
// if the string is quoted, parse it matching quotes
chr = *commandline;
if((chr == '\"') || (chr == '\''))
{
commandline++;
value = Parse_CL_String(commandline, chr);
}
// if there were no quotes, just read up to the next space or newline
else if(singleswitch == false) // see if quotes had been stripped outside POV-Ray
value = Parse_CL_String(commandline, -2);
else
value = Parse_CL_String(commandline, 0);
if(value == NULL)
{
ParseError("Expected value on command-line, no value was found.");
return kParseErr;
}
err = Process_INI_Option(table, value, obj);
delete[] value;
value = NULL;
return err;
}
bool IOBase::open(const char *Name, unsigned int Flags /* = 0 */)
{
char mode[8];
close();
if((Flags & append) == 0)
{
switch(direction)
{
case input:
strcpy(mode, "r");
break;
case output:
strcpy(mode, "w");
break;
case io:
strcpy(mode, "w+");
break;
default:
return false;
}
}
else
{
// we cannot use append mode here, since "a" mode is totally incompatible with any
// output file format that requires in-place updates(i.e. writing to any location
// other than the end of the file). BMP files are in this category. In theory, "r+"
// can do anything "a" can do(with appropriate use of seek()) so append mode should
// not be needed.
strcpy(mode, "r+");
}
strcat(mode, "b");
f = NULL;
if(pov_stricmp(Name, "stdin") == 0)
{
if(direction != input ||(Flags & append) != 0)
return false;
f = stdin;
}
else if(pov_stricmp(Name, "stdout") == 0)
{
if(direction != output ||(Flags & append) != 0)
return false;
f = stdout;
}
else
{
if((f = fopen(Name, mode)) == NULL)
{
if((Flags & append) == 0)
return false;
// to maintain traditional POV +c(continue) mode compatibility, if
// the open for append of an existing file fails, we allow a new file
// to be created.
mode [0] = 'w';
if((f = fopen(Name, mode)) == NULL)
return false;
}
}
fail = false;
if((Flags & append) != 0)
{
if(!seekg(0, seek_end))
{
close();
return false;
}
}
return true;
}
int ProcessRenderOptions::ProcessUnknownString(char *str, POVMSObjectPtr obj)
{
POVMSAttributeList list;
POVMSAttribute attr;
int state = 0; // INI file
int err = kNoErr;
if(str == NULL)
{
ParseError("Expected filename, nothing was found.");
return kParseErr;
}
// add filename or path
// see if it is a POV file
if(state == 0)
{
char *ptr = strrchr(str, '.');
if(ptr != NULL)
{
if(pov_stricmp(ptr, ".pov") == 0)
state = 1; // POV file
}
}
// see if it is a path
if(state == 0)
{
if(strlen(str) > 0)
{
if(str[strlen(str) - 1] == FILENAME_SEPARATOR)
state = 2; // library path
}
}
switch(state)
{
// INI file
case 0:
// parse INI file (recursive)
err = ParseFile(str, obj);
if(err == kNoErr)
{
// create list if it isn't there
if(POVMSObject_Exist(obj, kPOVAttrib_IncludeIni) == kFalseErr)
err = POVMSAttrList_New(&list);
else if(POVMSObject_Exist(obj, kPOVAttrib_IncludeIni) != kNoErr)
err = kObjectAccessErr;
else
err = POVMSObject_Get(obj, &list, kPOVAttrib_IncludeIni);
}
// add INI file to list
if(err == kNoErr)
err = POVMSAttr_New(&attr);
if(err == kNoErr)
{
err = POVMSAttr_Set(&attr, kPOVMSType_CString, str, strlen(str) + 1);
if(err == kNoErr)
err = POVMSAttrList_Append(&list, &attr);
else
err = POVMSAttr_Delete(&attr);
}
if(err == kNoErr)
err = POVMSObject_Set(obj, &list, kPOVAttrib_IncludeIni);
break;
// POV file
case 1:
// set POV file
err = POVMSUtil_SetString(obj, kPOVAttrib_InputFile, str);
break;
// library path
case 2:
// create list if it isn't there
if(POVMSObject_Exist(obj, kPOVAttrib_LibraryPath) == kFalseErr)
err = POVMSAttrList_New(&list);
else if(POVMSObject_Exist(obj, kPOVAttrib_LibraryPath) != kNoErr)
err = kObjectAccessErr;
else
err = POVMSObject_Get(obj, &list, kPOVAttrib_LibraryPath);
// add librarypath to list
if(err == kNoErr)
err = POVMSAttr_New(&attr);
if(err == kNoErr)
{
err = POVMSAttr_Set(&attr, kPOVMSType_CString, str, strlen(str) + 1);
if(err == kNoErr)
err = POVMSAttrList_Append(&list, &attr);
else
err = POVMSAttr_Delete(&attr);
}
if(err == kNoErr)
err = POVMSObject_Set(obj, &list, kPOVAttrib_LibraryPath);
break;
}
return err;
}
OStream::OStream(const UCS2String& name, unsigned int Flags) : IOBase(name), f(NULL)
{
const char* mode;
if((Flags & append) == 0)
{
mode = "wb";
}
else
{
// we cannot use append mode here, since "a" mode is totally incompatible with any
// output file format that requires in-place updates(i.e. writing to any location
// other than the end of the file). BMP files are in this category. In theory, "r+"
// can do anything "a" can do(with appropriate use of seek()) so append mode should
// not be needed.
mode = "r+b";
}
if(pov_stricmp(UCS2toASCIIString(name).c_str(), "stdin") == 0)
{
f = NULL;
}
else if(pov_stricmp(UCS2toASCIIString(name).c_str(), "stdout") == 0)
{
if((Flags & append) != 0)
f = NULL;
else
f = stdout;
}
else if(pov_stricmp(UCS2toASCIIString(name).c_str(), "stderr") == 0)
{
if((Flags & append) != 0)
f = NULL;
else
f = stdout;
}
else
{
f = POV_UCS2_FOPEN(name, mode);
if (f == NULL)
{
if((Flags & append) == 0)
f = NULL;
else
{
// to maintain traditional POV +c(continue) mode compatibility, if
// the open for append of an existing file fails, we allow a new file
// to be created.
mode = "wb";
f = POV_UCS2_FOPEN(name, mode);
}
}
if (f != NULL)
{
if((Flags & append) != 0)
{
if(!seekg(0, seek_end))
{
fclose(f);
f = NULL;
}
}
}
}
fail = (f == NULL);
}
