2 # Copyright (C) 2006 Daniel M. Eischen. All rights reserved.
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions
7 # 1. Redistributions of source code must retain the above copyright
8 # notice, this list of conditions and the following disclaimer.
9 # 2. Redistributions in binary form must reproduce the above copyright
10 # notice, this list of conditions and the following disclaimer in the
11 # documentation and/or other materials provided with the distribution.
13 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 # Make a list of all the library versions listed in the master file.
31 # versions[] - array indexed by version name, contains number
32 # of symbols (+ 1) found for each version.
33 # successors[] - array index by version name, contains successor
35 # symbols[][] - array index by [version name, symbol index], contains
36 # names of symbols defined for each version.
43 stderr = "/dev/stderr";
44 while (getline < vfile) {
48 # Strip trailing spaces.
51 if (/^[ \t]*[a-zA-Z0-9._]+ *{/) {
55 successors[symver] = "";
58 else if (/^[ \t]*} *[a-zA-Z0-9._]+ *;/) {
62 printf("Unmatched bracket.\n");
63 else if (versions[$2] != 1)
64 printf("File %s: %s has unknown " \
65 "successor %s\n", vfile, symver, $2);
67 successors[symver] = $2;
70 else if (/^[ \t]*};/) {
72 printf("File %s: Unmatched bracket.\n",
77 else if (/^[ \t]*}/) {
78 printf("File %s: Missing ending semi-colon.\n",
82 ; # Ignore blank lines.
84 printf("File %s: Unknown directive: %s\n",
91 # Delete comments, preceding and trailing whitespace, then
92 # consume blank lines.
94 sub("^[ \t]+", "", $0);
95 sub("[ \t]+$", "", $0);
100 /^[a-zA-Z0-9._]+ +{$/ {
101 # Strip bracket from version name.
103 if (current_version != "")
104 printf("File %s, line %d: Illegal nesting detected.\n",
105 FILENAME, FNR) > stderr;
106 else if (versions[$1] == 0) {
107 printf("File %s, line %d: Undefined " \
108 "library version %s\n", FILENAME, FNR, $1) > stderr;
109 # Remove this entry from the versions.
113 current_version = $1;
118 /^[a-zA-Z0-9._]+ *;$/ {
119 if (current_version != "") {
120 count = versions[current_version];
121 versions[current_version]++;
122 symbols[current_version, count] = $1;
130 printf("File %s, line %d: Unmatched bracket.\n",
131 FILENAME, FNR, $1) > stderr;
132 brackets = 0; # Reset
134 current_version = "";
140 printf("File %s, line %d: Unknown directive: '%s'\n",
141 FILENAME, FNR, $0) > stderr;
145 for (v in versions) {
149 # The version count is always one more that actual,
150 # so the loop ranges from 1 to n-1.
152 for (i = 1; i < versions[v]; i++) {
155 printf("\t%s\n", symbols[v, i]);
157 if (successors[v] == "") {
158 # This version succeeds no other version.
164 printf("} %s;\n", successors[v]);