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Diffstat (limited to 'usr/dash/input.h')
| -rw-r--r-- | usr/dash/input.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/usr/dash/input.h b/usr/dash/input.h new file mode 100644 index 0000000..50a7797 --- /dev/null +++ b/usr/dash/input.h @@ -0,0 +1,66 @@ +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1997-2005 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Kenneth Almquist. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)input.h 8.2 (Berkeley) 5/4/95 + */ + +/* PEOF (the end of file marker) is defined in syntax.h */ + +enum { + INPUT_PUSH_FILE = 1, + INPUT_NOFILE_OK = 2, +}; + +/* + * The input line number. Input.c just defines this variable, and saves + * and restores it when files are pushed and popped. The user of this + * package must set its value. + */ +extern int plinno; +extern int parsenleft; /* number of characters left in input buffer */ +extern char *parsenextc; /* next character in input buffer */ + +int pgetc(void); +int pgetc2(void); +int preadbuffer(void); +void pungetc(void); +void pushstring(char *, void *); +void popstring(void); +int setinputfile(const char *, int); +void setinputstring(char *); +void popfile(void); +void popallfiles(void); +void closescript(void); + +#define pgetc_macro() \ + (--parsenleft >= 0 ? (signed char)*parsenextc++ : preadbuffer()) |