main.c File Reference

Driver; reads standard in and relays to parse chain. More...

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "out.h"
#include "in.h"
#include "lexer.h"
#include "parser.h"
#include "main.h"

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Defines
#define	EVAL(expr, err)   if (expr) { errno = err; perror(pcerr); iret = EXIT_FAILURE; goto cleanup; }
	Evaluand gives unto errno, cleans up.
Functions
int	main ()
	Driver from a mysterious nether-aether, and thence: Styx.

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Detailed Description

Driver; reads standard in and relays to parse chain.

Definition in file main.c.

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Define Documentation

#define EVAL (  expr, err   )     if (expr) { errno = err; perror(pcerr); iret = EXIT_FAILURE; goto cleanup; }

Evaluand gives unto errno, cleans up. Parameters: expr  evaluand err  errno Definition at line 17 of file main.c.

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Function Documentation

int main (   )

Driver from a mysterious nether-aether, and thence: Styx. Returns: nether-aether's fare. Definition at line 21 of file main.c. References EVAL, in(), and parse(). { int iret = EXIT_SUCCESS; const char *pcerr = "main.c main()"; char *pc; /* Unsuccessful read. */ EVAL(in(stdin, &pc) == EXIT_FAILURE, EIO); /* Else, perform tokenization and thence parse. */ EVAL(parse(pc) != EXIT_SUCCESS, EINVAL); cleanup: free(pc); return iret; }

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