SCANNER MODULE Scans IP Pascal tolkens from a file and returns them. Does nothing with "uses" files, and has no error recovery. The scanner module is a general purpose version of the scanner built in to the general compiler. It is usefull for program analisis tasks, such as symbols/crossreference generators, and convertion tasks, such as a prettyprinter. The scanner buffers up its input in terms of lines. This is required because some of the tolkens require backtracking to recognise. No ANSI status is recognized. The scanner allways works in full IP mode. There are two calls for the scanner module: iniscn(var f: text); Initalizes the scanner and reads the first line from the input file. The caller may check if the file is null (eof) before the call. gettlk(var f: text); Gets the next tolken from the input, and places that in the next tolken buffers, as follows: nxttlk Returns the next tolken code. This is one of the tolkens from the "tolken" type. nxtlab Returns the next label, if the tolken is a symbol, or the next string, if the next tolken is a string. Strings have their enclosing quotes removed. Other tolkens will also have their equivalent forms placed in the nxtlab buffer, including integers and reals. nxtlen Returns the length of a string for a string tolken. nxtint Returns an integer if the next tolken is an integer. nxtflt Returns a floating point if the next tolken is a real.