1140 lines
22 KiB
Plaintext
1140 lines
22 KiB
Plaintext
%{
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/* $NetBSD: mkmake.y,v 1.7 1998/05/07 05:26:35 enami Exp $ */
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/*-
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* Copyright (c) 1988 The Regents of the University of California.
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mkmake.y 4.2 (Berkeley) 4/26/91";
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#else
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__RCSID("$NetBSD: mkmake.y,v 1.7 1998/05/07 05:26:35 enami Exp $");
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#endif
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#endif /* not lint */
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typedef struct string {
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int
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hashval,
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length;
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char
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*string;
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struct string
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*next;
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} string_t;
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/*
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* The deal with these is that they exist on various lists.
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*
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* First off, they are on a temporary list during the time they
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* are in the active focus of the parser.
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*
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* Secondly, they live on one of three queues:
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* 1. Variables
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* 2. Targets
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* 3. Actions
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* (and, we restrict any given one to live on one and only one such list)
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*
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* Also, they may live on the list of values for someone else's variable,
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* or as someone's dependancy.
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*/
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typedef struct same {
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string_t
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*string; /* My name */
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struct same
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*nexttoken, /* Next pointer */
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*lasttoken, /* Back pointer */
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*depend_list, /* If target, dependancies */
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*action_list, /* If target, actions */
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*value_list, /* If variable, value list */
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*shell_item; /* If a shell variable, current value */
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} same_t;
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%}
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%union {
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string_t *string;
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same_t *same;
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int intval;
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}
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%start makefile
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%token <string> TOKEN QUOTED_STRING
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%token <intval> FOR IN DO DONE
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%token <intval> MACRO_CHAR NL WHITE_SPACE
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%token <intval> ':' '=' '$' '{' '}' ';' '-' '@' '(' ')' ' ' '\t'
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%type <same> target target1 assignment assign1 actions action
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%type <same> command_list list list_element
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%type <same> for_statement maybe_at_minus tokens token
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%type <same> maybe_white_space
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%type <intval> white_space macro_char
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%%
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makefile : lines;
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lines : line
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| lines line
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;
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line : NL
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| assignment
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| target_action
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;
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assignment : assign1 tokens NL
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{
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assign($1, $2);
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}
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| assign1 NL
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{
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assign($1, same_copy(null));
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}
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;
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assign1: token maybe_white_space '=' maybe_white_space
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;
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target_action: target actions
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{
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add_targets_actions($1, $2);
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}
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| target
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{
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add_targets_actions($1, 0);
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}
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;
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target : target1 tokens NL
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{
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$$ = add_depends($1, $2);
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}
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| target1 NL
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{
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$$ = add_depends($1, same_copy(null));
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}
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;
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target1: tokens maybe_white_space ':' maybe_white_space
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{
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$$ = ws_merge($1);
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}
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;
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actions: action
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| actions action
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{
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$$ = same_cat(same_cat($1, same_copy(newline)), $2);
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}
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;
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action: white_space command_list NL
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{
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$$ = $2;
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}
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| white_space for_statement do command_list semi_colon done NL
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{
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$$ = do_command($2, $4);
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}
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;
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for_statement: maybe_at_minus FOR white_space token
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in tokens semi_colon
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{
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$$ = for_statement($1, $4, ws_merge(expand_variables($6, 0)));
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}
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;
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in: white_space IN white_space
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do: white_space DO white_space
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;
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done: white_space DONE
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;
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semi_colon: ';'
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;
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command_list: list
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| '(' list maybe_white_space ')'
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{
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$$ = same_cat($2, same_copy(cwd_line));
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}
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;
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list: token
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| list list_element
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{
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$$ = same_cat($1, $2);
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}
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| list white_space list_element
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{
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$$ = same_cat($1, same_cat(same_copy(blank), $3));
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}
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;
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list_element: token
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| semi_colon
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{
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$$ = same_copy(newline);
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}
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;
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maybe_at_minus: /* empty */
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{
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$$ = same_copy(null);
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}
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| '@'
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{
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char buffer[2];
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buffer[0] = $1;
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buffer[1] = 0;
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$$ = same_item(string_lookup(buffer));
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}
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| '-'
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{
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char buffer[2];
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buffer[0] = $1;
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buffer[1] = 0;
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$$ = same_item(string_lookup(buffer));
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}
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;
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tokens : token
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| tokens maybe_white_space token
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{
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$$ = same_cat($1, same_cat($2, $3));
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}
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;
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token: TOKEN
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{
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$$ = same_item($1);
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}
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| QUOTED_STRING
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{
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$$ = same_item($1);
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}
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| '$' macro_char
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{
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char buffer[3];
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buffer[0] = '$';
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buffer[1] = $2;
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buffer[2] = 0;
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$$ = same_item(string_lookup(buffer));
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}
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| '$' '$' TOKEN
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{
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$$ = shell_variable(same_item($3));
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}
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| MACRO_CHAR
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{
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$$ = same_char($1);
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}
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| '$' '{' TOKEN '}'
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{
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$$ = variable(same_item($3));
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}
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| '$' '(' TOKEN ')'
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{
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$$ = variable(same_item($3));
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}
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| '$' TOKEN
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{
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$$ = variable(same_item($2));
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}
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| '-'
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{
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$$ = same_char('-');
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}
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| '@'
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{
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$$ = same_char('@');
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}
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;
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macro_char: MACRO_CHAR
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| '@'
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;
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maybe_white_space:
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{
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$$ = same_copy(null);
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}
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| white_space
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{
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$$ = same_char($1);
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}
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;
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white_space : WHITE_SPACE
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| white_space WHITE_SPACE
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;
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%%
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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/* mkmake.y */
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void yyerror __P((char *));
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void assign __P((same_t *, same_t *));
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int yylex __P((void));
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extern int yyparse __P((void));
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int main __P((int, char *[]));
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static int visitcheck __P((same_t *));
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static int string_hashof __P((char *, int));
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static int string_same __P((string_t *, string_t *));
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static string_t *string_lookup __P((char *));
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static same_t *same_search __P((same_t *, same_t *));
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static same_t *same_cat __P((same_t *, same_t *));
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static same_t *same_item __P((string_t *));
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static same_t *same_copy __P((same_t *));
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static same_t *same_merge __P((same_t *, same_t *));
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static void same_free __P((same_t *));
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static same_t *same_unlink __P((same_t *));
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static void same_replace __P((same_t *, same_t *));
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static same_t *same_char __P((int));
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static void add_target __P((same_t *, same_t *));
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static same_t *add_targets_actions __P((same_t *, same_t *));
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static same_t *add_depends __P((same_t *, same_t *));
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static same_t *value_of __P((same_t *));
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static same_t *expand_variables __P((same_t *, int));
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static same_t *ws_merge __P((same_t *));
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static same_t *variable __P((same_t *));
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static same_t *shell_variable __P((same_t *));
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static same_t *for_statement __P((same_t *, same_t *, same_t *));
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static same_t *do_command __P((same_t *, same_t *));
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static int Getchar __P((void));
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static int token_type __P((char *));
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#if 0
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static void dump_same __P((same_t *));
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#endif
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static void do_dump __P((void));
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static int last_char, last_saved = 0;
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static int column = 0, lineno = 1;
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static string_t
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*strings = 0;
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static same_t
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*variables = 0,
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*targets = 0;
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static same_t
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*null,
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*blank,
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*cwd_line,
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*newline;
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static unsigned int
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clock = -1;
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struct {
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same_t *first;
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int next;
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} visit_stack[20]; /* 20 maximum */
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#define visit(what,via) \
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(visit_stack[++clock].next = 0, visit_stack[clock].first = via = what)
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#define visited(via) (visitcheck(via) || ((via) == 0) \
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|| (visit_stack[clock].next && (via == visit_stack[clock].first)))
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#define visit_next(via) (visit_stack[clock].next = 1, (via) = (via)->nexttoken)
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#define visit_end() (clock--)
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void
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yyerror(s)
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char *s;
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{
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fprintf(stderr, "line %d, character %d: %s\n", lineno, column, s);
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do_dump();
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}
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static int
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visitcheck(same)
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same_t *same;
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{
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if (same->string == 0) {
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yyerror("BUG - freed 'same' in use...");
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exit(1);
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}
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return 0;
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}
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static int
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string_hashof(string, length)
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char *string;
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int length;
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{
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register int i = 0;
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while (length--) {
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i = ((i<<3) + *string) ^ ((i>>28)&0x7);
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}
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return i;
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}
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static int
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string_same(s1, s2)
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string_t
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*s1, *s2;
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{
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if ((s1->hashval == s2->hashval) && (s1->length == s2->length)
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&& (memcmp(s1->string, s2->string, s1->length) == 0)) {
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return 1;
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} else {
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return 0;
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}
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}
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static string_t *
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string_lookup(string)
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char *string;
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{
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string_t ours;
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string_t *ptr;
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ours.length = strlen(string);
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ours.hashval = string_hashof(string, ours.length);
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ours.string = string;
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for (ptr = strings; ptr; ptr = ptr->next) {
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if (string_same(&ours, ptr)) {
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return ptr;
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}
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}
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if ((ptr = (string_t *)malloc(sizeof *ptr)) == 0) {
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fprintf(stderr, "No space to add string *%s*!\n", string);
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exit(1);
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}
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ptr->hashval = ours.hashval;
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ptr->length = ours.length;
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if ((ptr->string = malloc(ours.length+1)) == 0) {
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fprintf(stderr, "No space to add literal *%s*!\n", string);
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exit(1);
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}
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memcpy(ptr->string, string, ours.length+1);
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ptr->next = strings;
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strings = ptr;
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return ptr;
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}
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#define same_singleton(s) ((s)->nexttoken == (s))
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static same_t *
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same_search(list, token)
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same_t
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*list,
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*token;
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{
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same_t *ptr;
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ptr = list;
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for (visit(list, ptr); !visited(ptr); visit_next(ptr)) {
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string_t *string;
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string = ptr->string;
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if (string_same(string, token->string)) {
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visit_end();
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return ptr;
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}
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}
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visit_end();
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return 0;
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}
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static same_t *
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same_cat(list, tokens)
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same_t
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*list,
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*tokens;
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{
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same_t *last;
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if (tokens == 0) {
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return list;
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}
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if (list) {
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last = tokens->lasttoken;
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tokens->lasttoken = list->lasttoken;
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list->lasttoken = last;
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tokens->lasttoken->nexttoken = tokens;
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last->nexttoken = list;
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return list;
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} else {
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return tokens;
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}
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}
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static same_t *
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same_item(string)
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string_t *string;
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{
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same_t *ptr;
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if ((ptr = (same_t *)malloc(sizeof *ptr)) == 0) {
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fprintf(stderr, "No more space for tokens!\n");
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exit(1);
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}
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memset((char *)ptr, 0, sizeof *ptr);
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ptr->nexttoken = ptr->lasttoken = ptr;
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ptr->string = string;
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return ptr;
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}
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static same_t *
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same_copy(same)
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same_t *same;
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{
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same_t *head, *copy;
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head = 0;
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for (visit(same, copy); !visited(copy); visit_next(copy)) {
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same_t *ptr;
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ptr = same_item(copy->string);
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head = same_cat(head, ptr);
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}
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visit_end();
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return head;
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}
|
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|
|
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static same_t *
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same_merge(t1, t2)
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|
same_t
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*t1,
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*t2;
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|
{
|
|
if (same_singleton(t1) && same_singleton(t2)) {
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int length = strlen(t1->string->string)+strlen(t2->string->string);
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char *buffer = malloc(length+1);
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same_t *value;
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if (buffer == 0) {
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yyerror("No space to merge strings in same_merge!");
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exit(1);
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}
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strcpy(buffer, t1->string->string);
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strcat(buffer, t2->string->string);
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value = same_item(string_lookup(buffer));
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free(buffer);
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return value;
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} else {
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yyerror("Internal error - same_merge with non-singletons");
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exit(1);
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}
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}
|
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|
|
|
|
static void
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same_free(list)
|
|
same_t *list;
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|
{
|
|
same_t *token, *ptr;
|
|
|
|
if (list == 0) {
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return;
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}
|
|
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|
token = list;
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|
do {
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ptr = token->nexttoken;
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token->string = 0;
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|
(void) free((char *)token);
|
|
token = ptr;
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|
} while (token != list);
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|
}
|
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|
|
static same_t *
|
|
same_unlink(token)
|
|
same_t
|
|
*token;
|
|
{
|
|
same_t *tmp;
|
|
|
|
if (token == 0) {
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|
return 0;
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|
}
|
|
if ((tmp = token->nexttoken) == token) {
|
|
tmp = 0;
|
|
}
|
|
token->lasttoken->nexttoken = token->nexttoken;
|
|
token->nexttoken->lasttoken = token->lasttoken;
|
|
token->nexttoken = token->lasttoken = token;
|
|
return tmp;
|
|
}
|
|
|
|
static void
|
|
same_replace(old, new)
|
|
same_t
|
|
*old,
|
|
*new;
|
|
{
|
|
new->lasttoken->nexttoken = old->nexttoken;
|
|
old->nexttoken->lasttoken = new->lasttoken;
|
|
new->lasttoken = old->lasttoken;
|
|
/* rather than
|
|
* old->lasttoken->nexttoken = new
|
|
* we update in place (for the case where there isn't anything else)
|
|
*/
|
|
*old = *new;
|
|
}
|
|
|
|
|
|
static same_t *
|
|
same_char(ch)
|
|
char ch;
|
|
{
|
|
char buffer[2];
|
|
|
|
buffer[0] = ch;
|
|
buffer[1] = 0;
|
|
|
|
return same_item(string_lookup(buffer));
|
|
}
|
|
|
|
|
|
static void
|
|
add_target(target, actions)
|
|
same_t
|
|
*target,
|
|
*actions;
|
|
{
|
|
same_t *ptr;
|
|
|
|
if ((ptr = same_search(targets, target)) == 0) {
|
|
targets = same_cat(targets, target);
|
|
ptr = target;
|
|
} else {
|
|
ptr->depend_list = same_cat(ptr->depend_list, target->depend_list);
|
|
}
|
|
if (actions) {
|
|
if (ptr->action_list) {
|
|
same_free(ptr->action_list);
|
|
}
|
|
ptr->action_list = same_copy(actions);
|
|
}
|
|
}
|
|
|
|
|
|
static same_t *
|
|
add_targets_actions(target, actions)
|
|
same_t
|
|
*target,
|
|
*actions;
|
|
{
|
|
same_t *ptr;
|
|
|
|
if (target == 0) {
|
|
return 0;
|
|
}
|
|
do {
|
|
ptr = same_unlink(target);
|
|
add_target(target, actions);
|
|
target = ptr;
|
|
} while (target);
|
|
|
|
same_free(actions);
|
|
return 0;
|
|
}
|
|
|
|
static same_t *
|
|
add_depends(target, depends)
|
|
same_t
|
|
*target,
|
|
*depends;
|
|
{
|
|
same_t *original = target;
|
|
|
|
depends = same_cat(depends, same_copy(blank)); /* Separator */
|
|
|
|
for (visit(original, target); !visited(target); visit_next(target)) {
|
|
target->depend_list = same_cat(target->depend_list, same_copy(depends));
|
|
}
|
|
visit_end();
|
|
same_free(depends);
|
|
|
|
return original;
|
|
}
|
|
|
|
|
|
/*
|
|
* We know that variable is a singleton
|
|
*/
|
|
|
|
void
|
|
assign(variable, value)
|
|
same_t
|
|
*variable,
|
|
*value;
|
|
{
|
|
same_t *ptr;
|
|
|
|
if ((ptr = same_search(variables, variable)) != 0) {
|
|
same_free(ptr->value_list);
|
|
variables = same_unlink(ptr);
|
|
same_free(ptr);
|
|
}
|
|
variable->value_list = value;
|
|
variables = same_cat(variables, variable);
|
|
}
|
|
|
|
static same_t *
|
|
value_of(variable)
|
|
same_t *variable;
|
|
{
|
|
same_t *ptr = same_search(variables, variable);
|
|
|
|
if (ptr == 0) {
|
|
return same_copy(null);
|
|
} else {
|
|
return same_copy(ptr->value_list);
|
|
}
|
|
}
|
|
|
|
|
|
static same_t *
|
|
expand_variables(token, free)
|
|
same_t *token;
|
|
int free;
|
|
{
|
|
same_t *head = 0;
|
|
|
|
if (!free) {
|
|
token = same_copy(token); /* Get our private copy */
|
|
}
|
|
|
|
while (token) {
|
|
char *string = token->string->string;
|
|
same_t *tmp = same_unlink(token);
|
|
|
|
if ((string[0] == '$') && (string[1] == '{')) { /* Expand time */
|
|
int len = strlen(string);
|
|
|
|
string[len-1] = 0;
|
|
head = same_cat(head, expand_variables(
|
|
value_of(same_item(string_lookup(string+2))), 1));
|
|
string[len-1] = '}';
|
|
} else {
|
|
head = same_cat(head, token);
|
|
}
|
|
token = tmp;
|
|
}
|
|
return head;
|
|
}
|
|
|
|
|
|
static same_t *
|
|
ws_merge(list)
|
|
same_t *list;
|
|
{
|
|
same_t *newlist = 0, *item = NULL;
|
|
int what = 0;
|
|
|
|
while (list) {
|
|
switch (what) {
|
|
case 0:
|
|
if (isspace(list->string->string[0])) {
|
|
;
|
|
} else {
|
|
item = same_item(list->string);
|
|
what = 1;
|
|
}
|
|
break;
|
|
case 1:
|
|
if (isspace(list->string->string[0])) {
|
|
newlist = same_cat(newlist, item);
|
|
item = 0;
|
|
what = 0;
|
|
} else {
|
|
item = same_merge(item, same_item(list->string));
|
|
what = 1;
|
|
}
|
|
break;
|
|
}
|
|
list = same_unlink(list);
|
|
}
|
|
return same_cat(newlist, item);
|
|
}
|
|
|
|
|
|
static same_t *
|
|
variable(var_name)
|
|
same_t *var_name;
|
|
{
|
|
int length = strlen(var_name->string->string);
|
|
same_t *resolved;
|
|
char *newname;
|
|
|
|
if ((newname = malloc(length+1+3)) == 0) {
|
|
fprintf(stderr, "Out of space for a variable name.\n");
|
|
exit(1);
|
|
}
|
|
newname[0] = '$';
|
|
newname[1] = '{';
|
|
strcpy(newname+2, var_name->string->string);
|
|
strcat(newname, "}");
|
|
resolved = same_item(string_lookup(newname));
|
|
free(newname);
|
|
|
|
return resolved;
|
|
}
|
|
|
|
|
|
static same_t *
|
|
shell_variable(var_name)
|
|
same_t *var_name;
|
|
{
|
|
int length = strlen(var_name->string->string);
|
|
same_t *resolved;
|
|
char *newname;
|
|
|
|
if ((newname = malloc(length+1+2)) == 0) {
|
|
fprintf(stderr, "Out of space for a variable name.\n");
|
|
exit(1);
|
|
}
|
|
newname[0] = '$';
|
|
newname[1] = '$';
|
|
strcpy(newname+2, var_name->string->string);
|
|
resolved = same_item(string_lookup(newname));
|
|
free(newname);
|
|
|
|
return resolved;
|
|
}
|
|
|
|
static same_t *
|
|
for_statement(special, variable, list)
|
|
same_t
|
|
*special,
|
|
*variable,
|
|
*list;
|
|
{
|
|
variable->shell_item = special;
|
|
variable->value_list = list;
|
|
return variable;
|
|
}
|
|
|
|
static same_t *
|
|
do_command(forlist, commands)
|
|
same_t
|
|
*forlist,
|
|
*commands;
|
|
{
|
|
same_t
|
|
*special,
|
|
*command_list = 0,
|
|
*new_commands,
|
|
*tmp,
|
|
*shell_item,
|
|
*value_list = forlist->value_list;
|
|
char
|
|
*tmpstr,
|
|
*variable_name = forlist->string->string;
|
|
|
|
special = forlist->shell_item;
|
|
if (same_unlink(forlist->shell_item) != 0) {
|
|
yyerror("Unexpected second item in special part of do_command");
|
|
exit(1);
|
|
}
|
|
|
|
while ((shell_item = value_list) != 0) {
|
|
value_list = same_unlink(shell_item);
|
|
/* Visit each item in commands. For each shell variable which
|
|
* matches ours, replace it with ours.
|
|
*/
|
|
new_commands = same_copy(commands);
|
|
for (visit(new_commands, tmp); !visited(tmp); visit_next(tmp)) {
|
|
tmpstr = tmp->string->string;
|
|
if ((tmpstr[0] == '$') && (tmpstr[1] == '$')) {
|
|
if (strcmp(tmpstr+2, variable_name) == 0) {
|
|
same_replace(tmp, same_copy(shell_item));
|
|
}
|
|
}
|
|
}
|
|
visit_end();
|
|
command_list = same_cat(command_list, new_commands);
|
|
}
|
|
return same_cat(command_list, same_copy(newline));
|
|
}
|
|
|
|
|
|
static int
|
|
Getchar()
|
|
{
|
|
if (last_saved) {
|
|
last_saved = 0;
|
|
return last_char;
|
|
} else {
|
|
int c;
|
|
c = getchar();
|
|
switch (c) {
|
|
case '\n':
|
|
lineno++;
|
|
column = 0;
|
|
break;
|
|
default:
|
|
column++;
|
|
}
|
|
return c;
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
token_type(string)
|
|
char *string;
|
|
{
|
|
switch (string[0]) {
|
|
case 'f':
|
|
if (strcmp(string, "for") == 0) {
|
|
return FOR;
|
|
}
|
|
break;
|
|
case 'd':
|
|
if (string[1] == 'o') {
|
|
if (strcmp(string, "do") == 0) {
|
|
return DO;
|
|
} else if (strcmp(string, "done") == 0) {
|
|
return DONE;
|
|
}
|
|
}
|
|
break;
|
|
case 'i':
|
|
if (strcmp(string, "in") == 0) {
|
|
return IN;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return TOKEN;
|
|
}
|
|
|
|
|
|
int
|
|
yylex()
|
|
{
|
|
#define ret_token(c) if (bufptr != buffer) { \
|
|
save(c); \
|
|
*bufptr = 0; \
|
|
bufptr = buffer; \
|
|
yylval.string = string_lookup(buffer); \
|
|
return token_type(buffer); \
|
|
}
|
|
#define save(c) { last_char = c; last_saved = 1; }
|
|
#if defined(YYDEBUG)
|
|
#define Return(y,c) if (yydebug) { \
|
|
printf("[%d]", c); \
|
|
fflush(stdout); \
|
|
} \
|
|
yyval.intval = c; \
|
|
return y;
|
|
#else /* defined(YYDEBUG) */
|
|
#define Return(y,c) { yylval.intval = c; return y; }
|
|
#endif /* defined(YYDEBUG) */
|
|
|
|
|
|
static char buffer[500], *bufptr = buffer;
|
|
static int eof_found = 0;
|
|
int c;
|
|
|
|
if (eof_found != 0) {
|
|
eof_found++;
|
|
if (eof_found > 2) {
|
|
fprintf(stderr, "End of file ignored.\n");
|
|
exit(1);
|
|
}
|
|
Return(EOF,0);
|
|
}
|
|
while ((c = Getchar()) != EOF) {
|
|
switch (c) {
|
|
case '#':
|
|
ret_token(c);
|
|
while (((c = Getchar()) != EOF) && (c != '\n')) {
|
|
;
|
|
}
|
|
save(c);
|
|
break;
|
|
case '<':
|
|
case '?':
|
|
ret_token(c);
|
|
Return(MACRO_CHAR, c);
|
|
case '\t':
|
|
case ' ':
|
|
ret_token(c);
|
|
Return(WHITE_SPACE, c);
|
|
case '-':
|
|
case '@':
|
|
case ':':
|
|
case ';':
|
|
case '=':
|
|
case '$':
|
|
case '{':
|
|
case '}':
|
|
case '(':
|
|
case ')':
|
|
ret_token(c);
|
|
Return(c,c);
|
|
case '\'':
|
|
case '"':
|
|
if (bufptr != buffer) {
|
|
if (bufptr[-1] == '\\') {
|
|
bufptr[-1] = c;
|
|
}
|
|
break;
|
|
} else {
|
|
int newc;
|
|
|
|
ret_token(c);
|
|
*bufptr++ = c;
|
|
while (((newc = Getchar()) != EOF) && (newc != c)) {
|
|
*bufptr++ = newc;
|
|
}
|
|
*bufptr++ = c;
|
|
*bufptr = 0;
|
|
bufptr = buffer;
|
|
yylval.string = string_lookup(buffer);
|
|
return QUOTED_STRING;
|
|
}
|
|
case '\n':
|
|
if (bufptr != buffer) {
|
|
if (bufptr[-1] == '\\') {
|
|
bufptr--;
|
|
if ((c = Getchar()) != '\t') {
|
|
yyerror("continuation line doesn't begin with a tab");
|
|
save(c);
|
|
}
|
|
ret_token(c);
|
|
Return(WHITE_SPACE, c);
|
|
}
|
|
}
|
|
ret_token(c);
|
|
Return(NL, 0);
|
|
default:
|
|
*bufptr++ = c;
|
|
break;
|
|
}
|
|
}
|
|
|
|
eof_found = 1;
|
|
|
|
ret_token(' ');
|
|
Return(EOF, 0);
|
|
}
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
null = same_item(string_lookup(""));
|
|
newline = same_item(string_lookup("\n"));
|
|
blank = same_item(string_lookup(" "));
|
|
cwd_line = same_cat(same_copy(newline),
|
|
same_cat(same_item(string_lookup("cd ${CWD}")),
|
|
same_copy(newline)));
|
|
|
|
yyparse();
|
|
|
|
do_dump();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
dump_same(same)
|
|
same_t *same;
|
|
{
|
|
same_t *same2;
|
|
|
|
for (visit(same, same2); !visited(same2); visit_next(same2)) {
|
|
printf(same2->string->string);
|
|
}
|
|
visit_end();
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
do_dump()
|
|
{
|
|
string_t *string;
|
|
same_t *same, *same2;
|
|
|
|
if (yydebug > 1) {
|
|
printf("strings...\n");
|
|
for (string = strings; string; string = string->next) {
|
|
printf("\t%s\n", string->string);
|
|
}
|
|
}
|
|
|
|
printf("# variables...\n");
|
|
for (visit(variables, same); !visited(same); visit_next(same)) {
|
|
printf("%s =\t", same->string->string);
|
|
for (visit(same->value_list, same2); !visited(same2);
|
|
visit_next(same2)) {
|
|
printf(same2->string->string);
|
|
}
|
|
visit_end();
|
|
printf("\n");
|
|
}
|
|
visit_end();
|
|
|
|
printf("\n\n#targets...\n");
|
|
for (visit(targets, same); !visited(same); visit_next(same)) {
|
|
printf("\n%s:\t", same->string->string);
|
|
for (visit(same->depend_list, same2); !visited(same2);
|
|
visit_next(same2)) {
|
|
printf(same2->string->string);
|
|
}
|
|
visit_end();
|
|
printf("\n\t");
|
|
for (visit(same->action_list, same2); !visited(same2);
|
|
visit_next(same2)) {
|
|
printf(same2->string->string);
|
|
if (same2->string->string[0] == '\n') {
|
|
printf("\t");
|
|
}
|
|
}
|
|
visit_end();
|
|
printf("\n");
|
|
}
|
|
visit_end();
|
|
}
|