1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/* $RCSfile: parse.c,v $
-- $Revision: 1.8 $
-- last change: $Author: ihi $ $Date: 2007-10-15 15:40:45 $
--
-- SYNOPSIS
-- Parse the input, and perform semantic analysis
--
-- DESCRIPTION
-- This file contains the routines that parse the input makefile and
-- call the appropriate routines to perform the semantic analysis and
-- build the internal dag.
--
-- AUTHOR
-- Dennis Vadura, dvadura@dmake.wticorp.com
--
-- WWW
-- http://dmake.wticorp.com/
--
-- COPYRIGHT
-- Copyright (c) 1996,1997 by WTI Corp. All rights reserved.
--
-- This program is NOT free software; you can redistribute it and/or
-- modify it under the terms of the Software License Agreement Provided
-- in the file <distribution-root>/readme/license.txt.
--
-- LOG
-- Use cvs log to obtain detailed change logs.
*/
#include "extern.h"
PUBLIC void
Parse( fil )/*
============== Parse the makefile input */
FILE *fil;
{
int rule = FALSE; /* have seen a recipe line */
char *p; /* termporary pointer into Buffer */
char *pTmpBuf;
DB_ENTER( "Parse" );
State = NORMAL_SCAN;
Group = FALSE; /* true if scanning a group rcpe */
while( TRUE ) {
if( Get_line( Buffer, fil ) ) {
if( Group ) Fatal( "Incomplete rule recipe group detected" );
/* If we are still in RULE_SCAN mode there might be unbound recipes. */
if( State == RULE_SCAN )
Bind_rules_to_targets( F_DEFAULT );
if( fil != NIL( FILE ) ) /* end of parsable input */
Closefile();
DB_VOID_RETURN;
}
else {
#ifdef _MPW
if ( Buffer[0] == 10 )
pTmpBuf = Buffer+1;
else
#endif
pTmpBuf = Buffer;
#ifdef _MPW
p = pTmpBuf;
while ( *p )
{
if ( *p == 10 )
*p = '\t';
p++;
}
#endif
switch( State ) {
case RULE_SCAN:
/* Check for the `[' that starts off a group recipe definition.
* It must appear as the first non-white space
* character in the line. */
p = DmStrSpn( Buffer, " \t\r\n" );
if( Set_group_attributes( p ) ) {
if( Group )
Fatal( "New group recipe begin found within group recipe." );
else if( rule )
Fatal( "Cannot mix single and group recipe lines." );
else
Group = TRUE;
rule = TRUE;
break; /* ignore the group start */
}
if( Group ) {
if( *p != ']' ) {
Add_recipe_to_list( pTmpBuf, TRUE, TRUE );
rule = TRUE;
}
else
State = NORMAL_SCAN;
}
else {
if( *pTmpBuf == '\t'
|| (Notabs && *pTmpBuf == ' ') ) {
Add_recipe_to_list( pTmpBuf, FALSE, FALSE );
rule = TRUE;
}
else if( *p == ']' )
Fatal( "Found unmatched ']'" );
else if( *pTmpBuf ) /* Something that was no recipe. */
State = NORMAL_SCAN;
/* The only thing that was not handled was an empty line. */
}
if( State == RULE_SCAN ) break; /* ie. keep going */
Bind_rules_to_targets( (Group) ? F_GROUP: F_DEFAULT );
rule = FALSE;
if( Group ) {
Group = FALSE;
break;
}
/*FALLTRHOUGH*/
/* In this case we broke out of the rule scan because we do not
* have a recipe line that begins with a <TAB>, so lets
* try to scan the thing as a macro or rule definition. */
case NORMAL_SCAN:
if( !*pTmpBuf ) continue; /* we have null input line */
/* STUPID AUGMAKE uses "include" at the start of a line as
* a signal to include a new file, so let's look for it.
* if we see it replace it by .INCLUDE: and stick this back
* into the buffer. */
if( !strncmp( "include", pTmpBuf, 7 ) &&
(pTmpBuf[7] == ' ' || pTmpBuf[7] == '\t') )
{
char *tmp;
tmp = DmStrJoin( ".INCLUDE:", pTmpBuf+7, -1, FALSE );
strcpy( pTmpBuf, tmp );
FREE( tmp );
}
/* look for a macro definition, they all contain an = sign
* if we fail to recognize it as a legal macro op then try to
* parse the same line as a rule definition, it's one or the
* other */
if( Parse_macro(pTmpBuf, M_DEFAULT) ) break;/* it's a macro def*/
if( Parse_rule_def( &State ) ) break;/* it's a rule def */
/* if it is an empty or blank line then ignore it */
if( !*Buffer || *DmStrSpn( Buffer, " \t\r\n" ) == '\0' ) break;
/* otherwise assume it was a line of unrecognized input, or a
* recipe line out of place so print a message */
Fatal( "Expecting macro or rule defn, found neither" );
break;
default:
Fatal( "Internal -- UNKNOWN Parser state %d", State );
}
}
}
}
|
