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Get awk to build and make it hackable

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This commit is contained in:
Justine Tunney 2022-08-21 13:38:45 -07:00
parent 2f1679e5cf
commit 99a92048b4
19 changed files with 885 additions and 596 deletions
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90
third_party/awk/b.c vendored
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@ -1,39 +1,40 @@
/****************************************************************
Copyright (C) Lucent Technologies 1997
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name Lucent Technologies or any of
its entities not be used in advertising or publicity pertaining
to distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
│vi: set et ft=c ts=8 tw=8 fenc=utf-8 :vi│
╚──────────────────────────────────────────────────────────────────────────────╝
│ │
│ Copyright (C) Lucent Technologies 1997 │
│ All Rights Reserved │
│ │
│ Permission to use, copy, modify, and distribute this software and │
│ its documentation for any purpose and without fee is hereby │
│ granted, provided that the above copyright notice appear in all │
│ copies and that both that the copyright notice and this │
│ permission notice and warranty disclaimer appear in supporting │
│ documentation, and that the name Lucent Technologies or any of │
│ its entities not be used in advertising or publicity pertaining │
│ to distribution of the software without specific, written prior │
│ permission. │
│ │
│ LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, │
│ INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. │
│ IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY │
│ SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES │
│ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER │
│ IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, │
│ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF │
│ THIS SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#define DEBUG
#include "libc/calls/calls.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
#include "third_party/awk/awk.h"
#include "third_party/awk/awkgram.tab.h"
// clang-format off
/* lasciate ogne speranza, voi ch'intrate. */
#define DEBUG
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "awk.h"
#include "awkgram.tab.h"
#define MAXLIN 22
#define type(v) (v)->nobj /* badly overloaded here */
@ -866,25 +867,6 @@ Node *unary(Node *np)
* must be less than twice the size of their full name.
*/
/* Because isblank doesn't show up in any of the header files on any
* system i use, it's defined here. if some other locale has a richer
* definition of "blank", define HAS_ISBLANK and provide your own
* version.
* the parentheses here are an attempt to find a path through the maze
* of macro definition and/or function and/or version provided. thanks
* to nelson beebe for the suggestion; let's see if it works everywhere.
*/
/* #define HAS_ISBLANK */
#ifndef HAS_ISBLANK
int (xisblank)(int c)
{
return c==' ' || c=='\t';
}
#endif
static const struct charclass {
const char *cc_name;
int cc_namelen;
@ -892,11 +874,7 @@ static const struct charclass {
} charclasses[] = {
{ "alnum", 5, isalnum },
{ "alpha", 5, isalpha },
#ifndef HAS_ISBLANK
{ "blank", 5, xisblank },
#else
{ "blank", 5, isblank },
#endif
{ "cntrl", 5, iscntrl },
{ "digit", 5, isdigit },
{ "graph", 5, isgraph },