Fehlerliste des PS-Interpreters
-------------------------------

PS_OK           0 =
PS_VMERR        1 = VMerror - VM xhausted
PS_STKUNFL      2 = stackunderflow - op. stack underflow
PS_DSTKUNFL     3 = dictstackunderflow
PS_ESTKUNFL     4 = execstackunderflow
PS_GSTKUNFL     5 = graphics state stack underflow
PS_OSTKUNFL     6 = operand stack underflow
PS_CLIPUNFL     7 = clip path underflow
PS_PATHUNFL     8 = path underflow
PS_STKOVFL      9 = stackoverflow for all stacks
PS_DSTKOVFL    10 =
PS_ESTKOVFL    11 =
PS_GSTKOVFL    12 =
PS_OSTKOVFL    13 =
PS_CLIPOVFL    14 = and paths ...
PS_PATHOVFL    15 =
PS_DCTFULL     16 = dictfull - no more room in dictionary
PS_INTER       17 = interrupt - external interrupt request
PS_IVLDACC     18 = invalidaccess - violation of access
PS_IVLDEX      19 = invalidexit - exit not in loop
PS_IVFILAC     20 = invalidfileaccess
PS_IVLDFNT     21 = invalidfont - invalid fontname or dict
PS_IVLDRES     22 = invalidrestore - improper restore
PS_IOERR       23 = ioerror - input/output error ocurred
PS_LMTCHK      24 = limitcheck - implemented limit exceeded
PS_NOCURPT     25 = nocurrentpoint - current point undefined
PS_RNGCHK      26 = rangecheck - operand out of bounds
PS_SNERROR     27 = syntaxerror - PostScript syntax error
PS_TMOUT       28 = timeout - time limit exceeded
PS_TYPCHK      29 = typecheck - operand of wrong type
PS_UNDEFD      30 = undefined - name not known
PS_UNDEFIL     31 = undefinedfilename - file not found
PS_UNDFRES     32 = undefinedresult - overall result fault
PS_UNMTCHM     33 = unmatchedmark - mark not on stack
PS_UNREGS      34 = unregistered - internal error
PS_UNRESOURCE  35 = undefined resource
PS_CONFIGERROR 36 = configurationerror
