+/*****************************************************************************
+** Name: pol.h
+** Purpose: Header file for Problem Oriented Language Class
+** Programmer: Kevin Rosenberg
+** Date Started: 1984
+**
+** This is part of the CTSim program
+** Copyright (c) 1983-2001 Kevin Rosenberg
+**
+** $Id$
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License (version 2) as
+** published by the Free Software Foundation.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+******************************************************************************/
#ifndef __H_POL
#define __H_POL
-/* codes for pol_usefile */
-
-#define P_USE_STR 1 /* use string as input source */
-#define P_USE_FILE 2 /* use file as input source */
-
-/* codes for pol_int and pol_float */
-/* if in reject catagory, get new number from terminal */
-
-#define P_FLTINT 1 /* get a real or integer number */
-#define P_BFLTINT 2 /* get a real or integer number, clip against bounds */
-#define P_CBFLTINT 3 /* get real or int, reject if outside bounds */
-
-#define P_FLT 4 /* get a real number */
-#define P_BFLT 5 /* get a real, clip against bounds */
-#define P_CBFLT 6 /* get a floating, reject if outside bounds */
-
-#define P_INT 7 /* get a integer number */
-#define P_BINT 8 /* get a integer, clip against bounds */
-#define P_CBINT 9 /* get a integer, reject if outside bounds */
+#include "hashtable.h"
+#include <stack>
+
+class POL {
+
+ public:
+
+ // codes for pol_usefile
+ enum {
+ P_USE_STR = 1, // use string as input source
+ P_USE_FILE, // use file as input source
+ };
+
+
+ POL();
+ ~POL();
+
+ void init ();
+ void addSkipWord (const char* const w);
+ void addSkipChar (int c);
+ void addKeyword (const char* const str, int code);
+ bool readWord (const char *search, int nlet);
+ bool readUserToken (char *str, int *code);
+ bool readString (char *str);
+ bool readInteger (int *n, int typecode, bool boundcode, int bb1, int bb2);
+ bool readFloat (double *n, double typecode, bool boundcode, double bb1, double bb2);
+ bool skipTokens ();
+ void reader ();
+ bool readText (char *str, int lim);
+ void usefile (int source, const char *fn);
+ void closefile ();
+ int lookchar ();
+ int inchar ();
+ void ungetch (int c);
+ int get_inputline (FILE *fp);
+ void set_inputline (const char* const line);
+
+
+ enum {
+ MAXTOK = 200, // maximum length of a token
+ MAXLINE = 1024, // maximum line length
+ MAXIDENT = 20,
+ MAXSKIPWORD = 20,
+ MAXSKIPCHAR = 20,
+ MIN_INT = -2000000000,
+ MAX_INT = 2000000000,
+ };
+
+ // token types
+ enum {
+ TT_STRING = 1, // string token
+ TT_INT, // integer token
+ TT_REAL, // floating point token
+ TT_ALPHA, // alphabetic token
+ TT_ALPNUM, // alphanumeric token
+ TT_NUMALPHA,
+ TT_SPECLCHAR,
+ TT_EOF, // end of file reached
+ TT_ERROR, // error in token, caused by call to wrong type of token reader
+ TT_BLANK, // white space token. pol_tok() skips these
+ TT_USERTOK, // user defined token
+ };
+
+
+private:
+
+ // codes for pol_int and pol_float
+ // if in reject catagory, get new number from terminal
+ enum {
+ P_FLTINT = 1, // get a real or integer number
+ P_BFLTINT, // get a real or integer number, clip against bounds
+ P_CBFLTINT, // get real or int, reject if outside bounds
+ P_FLT, // get a real number
+ P_BFLT, // get a real, clip against bounds
+ P_CBFLT, // get a floating, reject if outside bounds
+ P_INT, // get a integer number
+ P_BINT, // get a integer, clip against bounds
+ P_CBINT, // get a integer, reject if outside bounds
+ };
#define LETTER 'a'
#define DIGIT '0'
-#define MAXTOK 200 /* maximum length of a token */
-#define MAXLINE 255
-#define MAXIDENT 20
-#define MAXSKIPWORD 20
-#define MAXSKIPCHAR 20
-
-#define MIN_INT -32768
-#define MAX_INT 32767
-
-/* token types */
-
-#define TT_STRING 1 /* string token */
-#define TT_INT 2 /* integer token */
-#define TT_REAL 3 /* floating point token */
-#define TT_ALPHA 4 /* alphabetic token */
-#define TT_ALPNUM 5 /* alphanumeric token */
-#define TT_NUMALPHA 6
-#define TT_SPECLCHAR 7
-
-#define TT_EOF 8 /* end of file reached */
-#define TT_ERROR 9 /* error in token, caused by call to wrong */
- /* type of token reader */
-#define TT_BLANK 10 /* white space token. pol_tok() skips these */
-#define TT_USERTOK 11 /* user defined token */
-
-struct symlist {
- char *name;
- int code;
- struct symlist *next;
-};
-typedef struct symlist SYMBOL;
+// typedef std::map<std::string,int> KeywordCodeList;
+
+ struct token_st {
+ int ready; // TRUE if token is ready
+ // std::string tokstr; // token string
+ char tokstr[MAXTOK+1];
+ int type; // type of token 'TT_'
+ int code; // holds code for user defined tokens
+ double fnum; // real value of token
+ int inum; // integer value of token
+ };
+ typedef struct token_st TOKEN;
+ struct token_st token; // current token
+
+ // Tables words stored with install() & found with lookup()
+ KeywordCodeHashTable skiptable; // words to ignore and skip
+ KeywordCodeHashTable cmdtable; // pol parameter commands
+ KeywordCodeHashTable usertable; // user defined symbols
+
+ struct metachar {
+ char eoc; /* end of command character */
+ char str; /* string delimiter */
+ char com; /* comment character */
+ char cmd; /* pol parameter command character */
+ char prg; /* program load character */
+ char con; /* continuation across newline character */
+ char out; /* character that delimits output to terminal */
+ char ter; /* character indicates insertion of input from terminal */
+ char inb; /* input from graphics device */
+ } meta;
+
+
+ char m_szSkipChars [MAXSKIPCHAR]; // characters to skip
+ bool m_bTrace;
+ bool m_bNewlineIsEOC;
+
+ struct KeywordCodeList {
+ const char *keyword;
+ int code;
+ };
+
+ static const struct KeywordCodeList cmdlist[];
+ static const unsigned int NUMCMD;
+
+ // Internal codes for pol commands
+ enum {
+ PC_EOC = 1,
+ PC_STR,
+ PC_COM,
+ PC_CMD,
+ PC_PRG,
+ PC_CON,
+ PC_OUT,
+ PC_TER,
+ PC_INB,
+ PC_NL_EOC,
+ PC_NL_NEOC,
+ PC_TRON,
+ PC_TROFF,
+ PC_FILE,
+ PC_DUMP,
+ };
+
+ enum {
+ INPUT_STREAM = 1,
+ INPUT_FILE,
+ INPUT_STRING,
+ };
+
+ int m_iInputType;
+ std::istream* m_pInputStream;
+ FILE* m_pInputFile;
+ char* m_pszInputString;
+
+ enum {
+ MAXFILE = 8,
+ };
+
+ int currentf; /* pointer to current fp */
+ FILE *filep[MAXFILE]; /* == NULL for string input */
+ char *fname[MAXFILE]; /* pointer to filename */
+
+ char inputline[MAXLINE]; /* current input line */
+ int lineptr; /* current position in inputline */
+
+ std::stack<int> m_stackPushBackInput;
+
+ bool skipSingleToken (char term[]);
+ int tok (struct token_st *token);
+ void dumptok (struct token_st *token);
+
+
+ int getpol_tok (struct token_st *token);
+ int getcmd ();
+ int gettok (TOKEN *tok);
+ void getblank (char *s, int toksiz);
+ int getalpha (char *s, int toksiz);
+ void getquote (char *qs, int toksiz);
+ void getescape (char *s, int delim, int toksiz);
+ int getnumber (char str[], int strsize, double *fnum, int *inum);
+ void eatline ();
+ int type (int c);
+ int getch (FILE *fp);
-struct token_st {
- int ready; /* TRUE if token is ready */
- char tokstr[MAXTOK+1]; /* token string */
- int type; /* type of token 'TT_' */
- int code; /* holds code for user defined tokens */
- double fnum; /* real value of token */
- int inum; /* integer value of token */
};
-typedef struct token_st TOKEN;
-
-/* pol.c */
-void pol_init(void);
-void pol_skpword(char *w);
-void pol_skpchar(char *s);
-int pol_install(char *str, int code);
-int pol_word(char *search, int nlet);
-int pol_usertok(char *str, int *code);
-int pol_string(char *str);
-int pol_integer(int *n, int typecode, int boundcode, int bb1, int bb2);
-int pol_float(double *n, double typecode, double boundcode, double bb1, double bb2);
-int pol_skip(void);
-void pol_reader(void);
-void gettext(char *str, int lim);
-void pol_usefile(int source, char *fn);
-void pol_closefile(void);
-int pol_lookchar(void);
-int pol_inchar(void);
-void pol_ungetch(int c);
-int get_inputline(FILE *fp);
-void set_inputline(char *line);
-
#endif
+
projects / ctsim.git / blobdiff