1AST(3)                     Library Functions Manual                     AST(3)
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NAME

6       expr - c-like expression library
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SYNOPSIS

9       #include <graphviz/expr.h>
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11       Expr_t*          exopen(Exdisc_t*);
12       Excc_t*          exccopen(Expr_t*, Exccdisc_t*);
13       int              excc(Excc_t*, const char*, Exid_t*, int);
14       int              exccclose(Excc_t*);
15       void             exclose(Expr_t*, int);
16       char*            excontext(Expr_t*, char*, int);
17       void             exerror(const char*, ...);
18       Extype_t         exeval(Expr_t*, Exnode_t*, void*);
19       Exnode_t*        exexpr(Expr_t*, const char*, Exid_t*, int);
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21       Exnode_t*        excast(Expr_t*, Exnode_t*, int, Exnode_t*, int);
22       Exnode_t*        exnewnode(Expr_t*, int, int, int, Exnode_t*, Exnode_t*);
23       void             exfreenode(Expr_t*, Exnode_t*);
24       int              expush(Expr_t*, const char*, int, const char*, Sfio_t*);
25       int              expop(Expr_t*);
26       int              excomp(Expr_t*, const char*, int, const char*, Sfio_t*);
27       int              exrewind(Expr_t*);
28       void             exstatement(Expr_t*);
29       int              extoken(Expr_t*);
30       char*            extype(int);
31       Extype_t         exzero(int);
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DESCRIPTION

35       exopen()  is the first function called.  exclose() is the last function
36       called.  exccopen() is the called if  code  generation  will  be  used.
37       exccclose()  releases  the  state  information allocated in exccopen().
38       exstatement() saves statement start information.   exrewind()  restores
39       statement start information saved by exstatement().
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SEE ALSO

43                                                                        AST(3)
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