ack/lang/cem/cemcom.ansi/input.c
David Given c1aca7dae5 First milestone of replacing the build system.
--HG--
branch : dtrg-buildsystem
rename : lang/cem/cpp.ansi/Parameters => lang/cem/cpp.ansi/parameters.h
2013-05-12 20:45:55 +01:00

92 lines
1.6 KiB
C

/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* $Id$ */
#include "parameters.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "file_info.h"
#include "input.h"
#define INP_PUSHBACK 3
#define INP_TYPE struct file_info
#define INP_VAR finfo
struct file_info finfo;
#include <inp_pkg.body>
#include <alloc.h>
#ifndef NOPP
#ifdef DBSYMTAB
#include <stb.h>
#include <em.h>
extern int IncludeLevel;
extern char options[];
#endif
char *
getwdir(fn)
register char *fn;
{
register char *p;
char *strrchr();
p = strrchr(fn, '/');
while (p && *(p + 1) == '\0') { /* remove trailing /'s */
*p = '\0';
p = strrchr(fn, '/');
}
if (fn[0] == '\0' || (fn[0] == '/' && p == &fn[0])) /* absolute path */
return "";
if (p) {
*p = '\0';
fn = Salloc(fn,(unsigned) (p - &fn[0] + 1));
*p = '/';
return fn;
}
return "";
}
int InputLevel;
extern int nestlevel;
#endif /* NOPP */
int NoUnstack;
AtEoIT()
{
#ifndef NOPP
InputLevel--;
unstackrepl();
#endif /* NOPP */
return 0;
}
extern char *source;
AtEoIF()
{
#ifndef NOPP
if (nestlevel != nestlow) lexwarning("missing #endif");
else
#endif /* NOPP */
if (NoUnstack) lexerror("unexpected EOF");
#ifndef NOPP
nestlevel = nestlow;
#ifdef DBSYMTAB
if (options['g'] && IncludeLevel > 0) {
C_ms_stb_cst(FileName, N_EINCL, 0, (arith) 0);
}
IncludeLevel--;
#endif
if (WorkingDir[0] != '\0') free(WorkingDir);
#endif /* NOPP */
#ifndef LINT
if (FileName != source) free(FileName);
#endif
return 0;
}