718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
160 lines
4.1 KiB
Plaintext
160 lines
4.1 KiB
Plaintext
%{
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/*-
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* Sub-Lexical Analyzer for macro invokation in
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* the Aic7xxx SCSI Host adapter sequencer assembler.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2001 Adaptec Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_macro_scan.l#8 $
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <regex.h>
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#include <stdio.h>
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#include <string.h>
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#include <sysexits.h>
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#include <sys/queue.h>
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#include "aicasm.h"
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#include "aicasm_symbol.h"
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#include "aicasm_macro_gram.h"
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#define MAX_STR_CONST 4096
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static char string_buf[MAX_STR_CONST];
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static char *string_buf_ptr;
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static int parren_count;
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static char msgbuf[255];
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extern int mmlex(void);
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%}
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%option noinput
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WORD [A-Za-z_][-A-Za-z_0-9]*
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SPACE [ \t]+
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MCARG [^(), \t]+
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%x ARGLIST
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%%
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\n {
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++yylineno;
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}
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\r ;
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<ARGLIST>{SPACE} ;
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<ARGLIST>\( {
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parren_count++;
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if (parren_count == 1) {
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string_buf_ptr = string_buf;
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return ('(');
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}
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*string_buf_ptr++ = '(';
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}
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<ARGLIST>\) {
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if (parren_count == 1) {
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if (string_buf_ptr != string_buf) {
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/*
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* Return an argument and
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* rescan this parren so we
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* can return it as well.
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*/
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*string_buf_ptr = '\0';
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mmlval.str = string_buf;
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string_buf_ptr = string_buf;
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unput(')');
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return T_ARG;
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}
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BEGIN INITIAL;
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return (')');
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}
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parren_count--;
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*string_buf_ptr++ = ')';
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}
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<ARGLIST>{MCARG} {
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char *yptr;
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yptr = mmtext;
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while (*yptr)
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*string_buf_ptr++ = *yptr++;
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}
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<ARGLIST>\, {
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if (string_buf_ptr != string_buf) {
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/*
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* Return an argument and
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* rescan this comma so we
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* can return it as well.
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*/
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*string_buf_ptr = '\0';
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mmlval.str = string_buf;
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string_buf_ptr = string_buf;
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unput(',');
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return T_ARG;
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}
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return ',';
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}
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{WORD}[(] {
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/* May be a symbol or a macro invocation. */
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mmlval.sym = symtable_get(mmtext);
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if (mmlval.sym->type != MACRO) {
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stop("Expecting Macro Name",
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EX_DATAERR);
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}
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unput('(');
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parren_count = 0;
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BEGIN ARGLIST;
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return T_SYMBOL;
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}
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. {
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snprintf(msgbuf, sizeof(msgbuf), "Invalid character "
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"'%c'", mmtext[0]);
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stop(msgbuf, EX_DATAERR);
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}
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%%
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int
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mmwrap(void)
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{
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stop("EOF encountered in macro call", EX_DATAERR);
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return (1);
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}
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