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[gawk-diffs] [SCM] gawk branch, xgawk, updated. 54f5f71fb743e58427e2d72f
From: |
Arnold Robbins |
Subject: |
[gawk-diffs] [SCM] gawk branch, xgawk, updated. 54f5f71fb743e58427e2d72f0caaee12a12a5140 |
Date: |
Fri, 04 May 2012 11:27:54 +0000 |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "gawk".
The branch, xgawk has been updated
via 54f5f71fb743e58427e2d72f0caaee12a12a5140 (commit)
from b2a499ad0442dc0d8d4ac4b51c31d215fd810bf9 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=54f5f71fb743e58427e2d72f0caaee12a12a5140
commit 54f5f71fb743e58427e2d72f0caaee12a12a5140
Author: Arnold D. Robbins <address@hidden>
Date: Fri May 4 14:06:00 2012 +0300
Add new file, gawkapi.h.
diff --git a/gawkapi.h b/gawkapi.h
new file mode 100644
index 0000000..e51dcce
--- /dev/null
+++ b/gawkapi.h
@@ -0,0 +1,216 @@
+/*
+ * gawkpi.h -- Definitions for use by extension functions calling into gawk.
+ */
+
+/*
+ * Copyright (C) 2012, the Free Software Foundation, Inc.
+ *
+ * This file is part of GAWK, the GNU implementation of the
+ * AWK Programming Language.
+ *
+ * GAWK is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GAWK is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA
+ */
+
+/*
+ * N.B. You must include <sys/types.h> and <sys/stat.h>
+ * before including this file!
+ */
+
+#ifndef _GAWK_API_H
+#define _GAWK_API_H
+
+ /* Allow the use in C++ code. */
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+ typedef struct iobuf {
+ const char *name; /* filename */
+ int fd; /* file descriptor */
+ struct stat sbuf; /* stat buf */
+ char *buf; /* start data buffer */
+ char *off; /* start of current record in buffer */
+ char *dataend; /* first byte in buffer to hold new
data,
+ NULL if not read yet */
+ char *end; /* end of buffer */
+ size_t readsize; /* set from fstat call */
+ size_t size; /* buffer size */
+ ssize_t count; /* amount read last time */
+ size_t scanoff; /* where we were in the buffer when we
had
+ to regrow/refill */
+ /*
+ * No argument prototype on read_func. See get_src_buf()
+ * in awkgram.y.
+ */
+ ssize_t (*read_func)();
+
+ void *opaque; /* private data for open hooks */
+ int (*get_record)(char **out, struct iobuf *, int *errcode);
+ void (*close_func)(struct iobuf *); /* open and
close hooks */
+
+ int errcode;
+
+ int flag;
+# define IOP_IS_TTY 1
+# define IOP_NOFREE_OBJ 2
+# define IOP_AT_EOF 4
+# define IOP_CLOSED 8
+# define IOP_AT_START 16
+ } IOBUF;
+
+#define GAWK_API_MAJOR_VERSION 0
+#define GAWK_API_MINOR_VERSION 0
+
+#define DO_FLAGS_SIZE 6
+
+ typedef enum {
+ AWK_UNDEFINED,
+ AWK_NUMBER,
+ AWK_CONST_STRING,
+ AWK_STRING,
+ AWK_ARRAY
+ } awk_valtype_t;
+
+ typedef struct {
+ const char *const str;
+ const size_t len;
+ } awk_const_string_t;
+
+ typedef struct {
+ char *str;
+ size_t len;
+ } awk_string_t;
+
+ typedef struct {
+ awk_valtype_t val_type;
+ union {
+ awk_const_string cs;
+ awk_string s;
+ double d;
+ void* a;
+ } u;
+#define const_str_val u.cs
+#define str_val u.s
+#define num_val u.d
+#define array_cookie u.a
+ } awk_value_t;
+
+
+ typedef struct {
+ const char *name;
+ size_t num_args;
+ void (*function)(int num_args);
+ } awk_ext_func_t;
+
+ typedef struct gawk_api {
+ int major_version;
+ int minor_version;
+
+ int do_flags[DO_FLAGS_SIZE];
+ /* Use these as indices into do_flags[] array to check the values */
+#define gawk_do_lint 0
+#define gawk_do_traditional 1
+#define gawk_do_profile 2
+#define gawk_do_sandbox 3
+#define gawk_do_debug 4
+#define gawk_do_mpfr 5
+
+ /* get the number of arguments passed in function call */
+ /* FIXME: Needed? Won't we pass the count in the real call? */
+ size_t (*get_curfunc_arg_count)(void *ext_id);
+ awk_value_t *(*get_curfunc_param)(void *ext_id, size_t count);
+
+ /* functions to print messages */
+ void (*fatal)(void *ext_id, const char *format, ...);
+ void (*warning)(void *ext_id, const char *format, ...);
+ void (*lintwarn)(void *ext_id, const char *format, ...);
+
+ /* register an open hook; for opening files read-only */
+ int (*register_open_hook)(void *ext_id,
+ void* (*open_func)(IOBUF *));
+
+ /* functions to update ERRNO */
+ void (*update_ERRNO_int)(void *ext_id, int);
+ void (*update_ERRNO_string)(void *ext_id, const char *string,
+ int translate);
+ void (*unset_ERRNO)(void *ext_id);
+
+ /* check if a value received from gawk is the null string */
+ int (*is_null_string)(void *ext_id, void *value);
+
+ /* add a function to the interpreter */
+ int *(add_ext_func)(void *ext_id, const awk_ext_func_t *func);
+
+ /* add an exit call back */
+ void (*awk_atexit)(void *ext_id, void (*funcp)(void *data, int
exit_status), void *arg0);
+
+ /* Symbol table access */
+ awk_value_t *(*sym_lookup)(void *ext_id, const char *name);
+ int (*sym_update)(void *ext_id, const char *name, awk_value_t
*value);
+ int (*sym_remove)(void *ext_id, const char *name);
+
+ /* Array management */
+ awk_value_t *(*get_array_element)(void *ext_id, void *a_cookie,
const awk_value_t* const index);
+ awk_value_t *(*set_array_element)(void *ext_id, void *a_cookie,
+ const awk_value_t* const index, const
awk_value_t* const value);
+ awk_value_t *(*del_array_element)(void *ext_id, void *a_cookie,
const awk_value_t* const index);
+ size_t (*get_element_count)(void *ext_id, void *a_cookie);
+
+ } gawk_api_t;
+
+#ifndef GAWK /* these are not for the gawk code itself */
+ /*
+ * Use these if you want to define a "global" variable named api
+ * to make the code a little easier to read.
+ */
+#define do_lint api->do_flags[gawk_do_lint]
+#define do_traditional api->do_flags[gawk_do_traditional]
+#define do_profile api->do_flags[gawk_do_profile]
+#define do_sandbox api->do_flags[gawk_do_sandbox]
+#define do_debug api->do_flags[gawk_do_debug]
+
+#define get_curfunc_arg_count api->get_curfunc_arg_count
+#define get_curfunc_param api->get_curfunc_param
+
+#define fatal api->fatal
+#define warning api->warning
+#define lintwarn api->lintwarn
+
+#define register_open_hook api->register_open_hook
+
+#define update_ERRNO_int api->update_ERRNO_int
+#define update_ERRNO_string api->update_ERRNO_string
+#define unset_ERRNO api->unset_ERRNO
+
+#define is_null_string api->is_null_string
+
+#define add_ext_func api->add_ext_func
+#define awk_atexit api->awk_atexit
+
+#define sym_lookup api->sym_lookup
+#define sym_update api->sym_update
+#define sym_remove api->sym_remove
+
+#define get_array_element api->get_array_element
+#define set_array_element api->set_array_element
+#define del_array_element api->del_array_element
+#define get_element_count api->get_element_count
+#endif /* GAWK */
+
+#ifdef __cplusplus
+}
+#endif /* C++ */
+
+#endif /* _GAWK_API_H */
-----------------------------------------------------------------------
Summary of changes:
gawkapi.h | 216 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 216 insertions(+), 0 deletions(-)
create mode 100644 gawkapi.h
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