gnuplot-old/src/parse.h at axis_branch_base · gnuplot/gnuplot-old · GitHub

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* $Id: parse.h,v 1.4.2.1 2000/06/22 12:57:39 broeker Exp $

/* GNUPLOT - parse.h */

/*[

* Permission to use, copy, and distribute this software and its

* documentation for any purpose with or without fee is hereby granted,

* provided that the above copyright notice appear in all copies and

* that both that copyright notice and this permission notice appear

* in supporting documentation.

* Permission to modify the software is granted, but not the right to

* distribute the complete modified source code. Modifications are to

* be distributed as patches to the released version. Permission to

* distribute binaries produced by compiling modified sources is granted,

* provided you

* 1. distribute the corresponding source modifications from the

* released version in the form of a patch file along with the binaries,

* 2. add special version identification to distinguish your version

* in addition to the base release version number,

* 3. provide your name and address as the primary contact for the

* support of your modified version, and

* 4. retain our contact information in regard to use of the base

* software.

* Permission to distribute the released version of the source code along

* with corresponding source modifications in the form of a patch file is

* granted with same provisions 2 through 4 for binary distributions.

* This software is provided "as is" without express or implied warranty

* to the extent permitted by applicable law.

]*/

#ifndef PARSE_H

# define PARSE_H

# include "syscfg.h"

# include "gp_types.h"

#include "eval.h"

#define MAX_AT_LEN 150 /* max number of entries in action table */

/* externally usable types defined by parse.h */

enum operators {

/* keep this in line with table in eval.c */

PUSH, PUSHC, PUSHD1, PUSHD2, PUSHD, CALL, CALLN, LNOT, BNOT, UMINUS,

LOR, LAND, BOR, XOR, BAND, EQ, NE, GT, LT, GE, LE, PLUS, MINUS, MULT,

DIV, MOD, POWER, FACTORIAL, BOOLE,

DOLLARS, /* for using extension - div */

/* only jump operators go between jump and sf_start, for is_jump() */

JUMP, JUMPZ, JUMPNZ, JTERN, SF_START

};

#define is_jump(operator) \

((operator) >=(int)JUMP && (operator) <(int)SF_START)

/* action table entry */

struct at_entry {

enum operators index; /* index of p-code function */

union argument arg;

};

struct at_type {

/* count of entries in .actions[] */

int a_count;

/* will usually be less than MAX_AT_LEN is malloc()'d copy */

struct at_entry actions[MAX_AT_LEN];

};

/* exported variables of parse.c */

/* The choice of dummy variables, as set by 'set dummy', 'set polar'

* and 'set parametric' */

extern char set_dummy_var[MAX_NUM_VAR][MAX_ID_LEN+1];

/* the currently used 'dummy' variables. Usually a copy of

* set_dummy_var, but may be changed by the '(s)plot' command

* containing an explicit range (--> 'plot [phi=0..pi]') */

extern char c_dummy_var[MAX_NUM_VAR][MAX_ID_LEN+1];

/* Prototypes of exported functions in parse.c */

/* void fpe __PROTO((void)); */

void evaluate_at __PROTO((struct at_type *at_ptr, struct value *val_ptr));

struct value * const_express __PROTO((struct value *valptr));

struct at_type * temp_at __PROTO((void));

struct at_type * perm_at __PROTO((void));

#endif /* PARSE_H */

gnuplot-old/src/parse.h at axis_branch_base · gnuplot/gnuplot-old · GitHub

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