Manpages - expr.3

expr - c-like expression library

#include <graphviz/expr.h>

Expr_t* exopen(Exdisc_t*); Excc_t* exccopen(Expr_t*, Exccdisc_t*); int exccclose(Excc_t*); void exclose(Expr_t*, int); char* excontext(Expr_t*, char*, int); void exerror(const char*, …); Extype_t exeval(Expr_t*, Exnode_t*, void*); Exnode_t* exexpr(Expr_t*, const char*, Exid_t*, int);

Exnode_t* excast(Expr_t*, Exnode_t*, int, Exnode_t*, int); Exnode_t* exnewnode(Expr_t*, int, int, int, Exnode_t*, Exnode_t*); void exfreenode(Expr_t*, Exnode_t*); int expush(Expr_t*, const char*, int, const char*, Sfio_t*); int expop(Expr_t*); int excomp(Expr_t*, const char*, int, const char*, Sfio_t*); int extoken(Expr_t*); char* extype(int); Extype_t exzero(int);

exopen() is the first function called. exclose() is the last function called. exccopen() is the called if code generation will be used. exccclose() releases the state information allocated in exccopen().