mirror of
https://github.com/signalwire/freeswitch.git
synced 2025-02-23 18:04:07 +00:00
89ecc93992
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6242 d0543943-73ff-0310-b7d9-9358b9ac24b2
128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/*
|
|
File: expreval.h
|
|
Auth: Brian Allen Vanderburg II
|
|
Date: Thursday, April 24, 2003
|
|
Desc: Main include file for ExprEval library
|
|
|
|
This file is part of ExprEval.
|
|
*/
|
|
|
|
|
|
/* Include once */
|
|
#ifndef __BAVII_EXPREVAL_H
|
|
#define __BAVII_EXPREVAL_H
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Define type of data to use */
|
|
typedef double EXPRTYPE;
|
|
|
|
/* Defines for various things */
|
|
|
|
/* Max id size */
|
|
#define EXPR_MAXIDENTSIZE 255
|
|
|
|
/* Error values */
|
|
enum
|
|
{
|
|
EXPR_ERROR_UNKNOWN = -1, /* Unknown error */
|
|
EXPR_ERROR_NOERROR = 0, /* No Error */
|
|
EXPR_ERROR_MEMORY, /* Memory allocation failed */
|
|
EXPR_ERROR_NULLPOINTER, /* Null pointer passed to function */
|
|
EXPR_ERROR_NOTFOUND, /* Item not found in a list */
|
|
EXPR_ERROR_UNMATCHEDCOMMENT, /* Unmatched comment tags */
|
|
EXPR_ERROR_INVALIDCHAR, /* Invalid characters in expression */
|
|
EXPR_ERROR_ALREADYEXISTS, /* An item already called create */
|
|
EXPR_ERROR_ALREADYPARSEDBAD, /* Expression parsed already, but unsuccessfully. call free or clear */
|
|
EXPR_ERROR_ALREADYPARSEDGOOD, /* Expression parsed already, successfully, call free or clear */
|
|
EXPR_ERROR_EMPTYEXPR, /* Empty expression string passed to parse */
|
|
EXPR_ERROR_UNMATCHEDPAREN, /* Unmatched parenthesis */
|
|
EXPR_ERROR_SYNTAX, /* Syntax error in expression */
|
|
EXPR_ERROR_MISSINGSEMICOLON, /* Missing semicolon at end of expression */
|
|
EXPR_ERROR_BADIDENTIFIER, /* Identifier was to big or not formed right */
|
|
EXPR_ERROR_NOSUCHFUNCTION, /* Function does not exist in function list */
|
|
EXPR_ERROR_BADNUMBERARGUMENTS, /* Bad number of arguments in a function call */
|
|
EXPR_ERROR_BADEXPR, /* This is a bad expression to evaluate. It has not been parsed or has unsuccessfully */
|
|
EXPR_ERROR_UNABLETOASSIGN, /* Unable to do an assignment, maybe no variable list */
|
|
EXPR_ERROR_DIVBYZERO, /* Attempted a division by zero */
|
|
EXPR_ERROR_NOVARLIST, /* No variable list found but one is needed */
|
|
EXPR_ERROR_BREAK, /* Expression was broken by break function */
|
|
EXPR_ERROR_CONSTANTASSIGN, /* Assignment to a constant */
|
|
EXPR_ERROR_REFCONSTANT, /* Constant used as a reference parameter */
|
|
EXPR_ERROR_OUTOFRANGE, /* A bad value was passed to a function */
|
|
|
|
EXPR_ERROR_USER /* Custom errors should be larger than this */
|
|
};
|
|
|
|
/* Macros */
|
|
|
|
/* Forward declarations */
|
|
typedef struct _exprNode exprNode;
|
|
typedef struct _exprFuncList exprFuncList;
|
|
typedef struct _exprValList exprValList;
|
|
typedef struct _exprObj exprObj;
|
|
|
|
/* Function types */
|
|
typedef int (*exprFuncType)(exprObj *obj, exprNode *nodes, int nodecount, EXPRTYPE **refs, int refcount, EXPRTYPE *val);
|
|
typedef int (*exprBreakFuncType)(exprObj *obj);
|
|
|
|
|
|
|
|
/* Functions */
|
|
|
|
/* Version information function */
|
|
void exprGetVersion(int *major, int *minor);
|
|
|
|
/* Functions for function lists */
|
|
int exprFuncListCreate(exprFuncList **flist);
|
|
int exprFuncListAdd(exprFuncList *flist, char *name, exprFuncType ptr, int min, int max, int refmin, int refmax);
|
|
int exprFuncListFree(exprFuncList *flist);
|
|
int exprFuncListClear(exprFuncList *flist);
|
|
int exprFuncListInit(exprFuncList *flist);
|
|
|
|
/* Functions for value lists */
|
|
int exprValListCreate(exprValList **vlist);
|
|
int exprValListAdd(exprValList *vlist, char *name, EXPRTYPE val);
|
|
int exprValListSet(exprValList *vlist, char *name, EXPRTYPE val);
|
|
int exprValListGet(exprValList *vlist, char *name, EXPRTYPE *val);
|
|
int exprValListAddAddress(exprValList *vlist, char *name, EXPRTYPE *addr);
|
|
int exprValListGetAddress(exprValList *vlist, char *name, EXPRTYPE **addr);
|
|
void *exprValListGetNext(exprValList *vlist, char **name, EXPRTYPE *value, EXPRTYPE** addr, void *cookie);
|
|
int exprValListFree(exprValList *vlist);
|
|
int exprValListClear(exprValList *vlist);
|
|
int exprValListInit(exprValList *vlist);
|
|
|
|
/* Functions for expression objects */
|
|
int exprCreate(exprObj **obj, exprFuncList *flist, exprValList *vlist, exprValList *clist,
|
|
exprBreakFuncType breaker, void *userdata);
|
|
int exprFree(exprObj *obj);
|
|
int exprClear(exprObj *obj);
|
|
int exprParse(exprObj *obj, char *expr);
|
|
int exprEval(exprObj *obj, EXPRTYPE *val);
|
|
int exprEvalNode(exprObj *obj, exprNode *nodes, int curnode, EXPRTYPE *val);
|
|
exprFuncList *exprGetFuncList(exprObj *obj);
|
|
exprValList *exprGetVarList(exprObj *obj);
|
|
exprValList *exprGetConstList(exprObj *obj);
|
|
exprBreakFuncType exprGetBreakFunc(exprObj *obj);
|
|
int exprGetBreakResult(exprObj *obj);
|
|
void* exprGetUserData(exprObj *obj);
|
|
void exprSetUserData(exprObj *obj, void *userdata);
|
|
void exprSetBreakCount(exprObj *obj, int count);
|
|
void exprGetErrorPosition(exprObj *obj, int *start, int *end);
|
|
|
|
/* Other useful routines */
|
|
int exprValidIdent(char *name);
|
|
|
|
/* Name mangling */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* __BAVII_EXPREVAL_H */
|