/****************************************************************
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Copyright (C) Lucent Technologies 1997
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and
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its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name Lucent Technologies or any of
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its entities not be used in advertising or publicity pertaining
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to distribution of the software without specific, written prior
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permission.
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LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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****************************************************************/
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extern int yywrap(void);
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extern void setfname(Cell *);
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extern int constnode(Node *);
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extern char *strnode(Node *);
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extern Node *notnull(Node *);
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extern int yyparse(void);
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extern int yylex(void);
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extern void startreg(void);
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extern int input(void);
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extern void unput(int);
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extern void unputstr(const char *);
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extern int yylook(void);
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extern int yyback(int *, int);
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extern int yyinput(void);
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extern fa *makedfa(const char *, int);
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extern fa *mkdfa(const char *, int);
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extern int makeinit(fa *, int);
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extern void penter(Node *);
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extern void freetr(Node *);
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extern int hexstr(uschar **);
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extern int quoted(uschar **);
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extern char *cclenter(const char *);
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extern void overflo(const char *) __attribute__((__noreturn__));
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extern void cfoll(fa *, Node *);
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extern int first(Node *);
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extern void follow(Node *);
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extern int member(int, const char *);
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extern int match(fa *, const char *);
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extern int pmatch(fa *, const char *);
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extern int nematch(fa *, const char *);
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extern Node *reparse(const char *);
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extern Node *regexp(void);
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extern Node *primary(void);
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extern Node *concat(Node *);
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extern Node *alt(Node *);
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extern Node *unary(Node *);
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extern int relex(void);
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extern int cgoto(fa *, int, int);
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extern void freefa(fa *);
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extern int pgetc(void);
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extern char *cursource(void);
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extern Node *nodealloc(int);
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extern Node *exptostat(Node *);
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extern Node *node1(int, Node *);
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extern Node *node2(int, Node *, Node *);
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extern Node *node3(int, Node *, Node *, Node *);
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extern Node *node4(int, Node *, Node *, Node *, Node *);
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extern Node *stat3(int, Node *, Node *, Node *);
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extern Node *op2(int, Node *, Node *);
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extern Node *op1(int, Node *);
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extern Node *stat1(int, Node *);
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extern Node *op3(int, Node *, Node *, Node *);
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extern Node *op4(int, Node *, Node *, Node *, Node *);
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extern Node *stat2(int, Node *, Node *);
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extern Node *stat4(int, Node *, Node *, Node *, Node *);
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extern Node *celltonode(Cell *, int);
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extern Node *rectonode(void);
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extern Node *makearr(Node *);
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extern Node *pa2stat(Node *, Node *, Node *);
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extern Node *linkum(Node *, Node *);
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extern void defn(Cell *, Node *, Node *);
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extern int isarg(const char *);
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extern char *tokname(int);
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extern Cell *(*proctab[])(Node **, int);
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extern int ptoi(void *);
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extern Node *itonp(int);
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extern void syminit(void);
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extern void arginit(int, char **);
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extern void envinit(char **);
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extern Array *makesymtab(int);
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extern void freesymtab(Cell *);
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extern void freeelem(Cell *, const char *);
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extern Cell *setsymtab(const char *, const char *, double, unsigned int, Array *);
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extern int hash(const char *, int);
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extern void rehash(Array *);
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extern Cell *lookup(const char *, Array *);
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extern double setfval(Cell *, double);
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extern void funnyvar(Cell *, const char *);
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extern char *setsval(Cell *, const char *);
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extern double getfval(Cell *);
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extern char *getsval(Cell *);
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extern char *getpssval(Cell *); /* for print */
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extern char *tostring(const char *);
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extern char *qstring(const char *, int);
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extern void recinit(unsigned int);
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extern void initgetrec(void);
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extern void makefields(int, int);
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extern void growfldtab(int n);
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extern int getrec(char **, int *, int);
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extern void nextfile(void);
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extern int readrec(char **buf, int *bufsize, FILE *inf);
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extern char *getargv(int);
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extern void setclvar(char *);
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extern void fldbld(void);
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extern void cleanfld(int, int);
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extern void newfld(int);
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extern void setlastfld(int);
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extern int refldbld(const char *, const char *);
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extern void recbld(void);
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extern Cell *fieldadr(int);
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extern void yyerror(const char *);
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extern void fpecatch(int);
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extern void bracecheck(void);
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extern void bcheck2(int, int, int);
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extern void SYNTAX(const char *, ...);
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extern void FATAL(const char *, ...) __attribute__((__noreturn__));
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extern void WARNING(const char *, ...);
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extern void error(void);
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extern void eprint(void);
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extern void bclass(int);
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extern double errcheck(double, const char *);
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extern int isclvar(const char *);
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extern int is_number(const char *);
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extern int adjbuf(char **pb, int *sz, int min, int q, char **pbp, const char *what);
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extern void run(Node *);
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extern Cell *execute(Node *);
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extern Cell *program(Node **, int);
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extern Cell *call(Node **, int);
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extern Cell *copycell(Cell *);
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extern Cell *arg(Node **, int);
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extern Cell *jump(Node **, int);
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extern Cell *awkgetline(Node **, int);
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extern Cell *getnf(Node **, int);
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extern Cell *array(Node **, int);
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extern Cell *awkdelete(Node **, int);
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extern Cell *intest(Node **, int);
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extern Cell *matchop(Node **, int);
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extern Cell *boolop(Node **, int);
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extern Cell *relop(Node **, int);
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extern void tfree(Cell *);
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extern Cell *gettemp(void);
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extern Cell *field(Node **, int);
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extern Cell *indirect(Node **, int);
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extern Cell *substr(Node **, int);
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extern Cell *sindex(Node **, int);
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extern int format(char **, int *, const char *, Node *);
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extern Cell *awksprintf(Node **, int);
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extern Cell *awkprintf(Node **, int);
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extern Cell *arith(Node **, int);
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extern double ipow(double, int);
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extern Cell *incrdecr(Node **, int);
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extern Cell *assign(Node **, int);
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extern Cell *cat(Node **, int);
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extern Cell *pastat(Node **, int);
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extern Cell *dopa2(Node **, int);
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extern Cell *split(Node **, int);
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extern Cell *condexpr(Node **, int);
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extern Cell *ifstat(Node **, int);
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extern Cell *whilestat(Node **, int);
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extern Cell *dostat(Node **, int);
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extern Cell *forstat(Node **, int);
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extern Cell *instat(Node **, int);
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extern Cell *bltin(Node **, int);
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extern Cell *printstat(Node **, int);
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extern Cell *nullproc(Node **, int);
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extern FILE *redirect(int, Node *);
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extern FILE *openfile(int, const char *);
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extern const char *filename(FILE *);
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extern Cell *closefile(Node **, int);
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extern void closeall(void);
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extern Cell *sub(Node **, int);
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extern Cell *gsub(Node **, int);
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extern FILE *popen(const char *, const char *);
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extern int pclose(FILE *);
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extern const char *flags2str(int flags);
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