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
|
# Extract all examples from the manual source. -*- AWK -*-
# This file is part of GNU Bison
# Copyright (C) 1992, 2000-2001, 2005-2006, 2009-2010 Free Software
# Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This script is for use with any Awk that conforms to POSIX.
# It was derived from a similar script tests/generate.awk in GNU m4.
#
# Usage: extexi input-file.texi ... -- [FILES to extract]
BEGIN {
if (!output_dir)
output_dir = ".";
for (argc = 1; argc < ARGC; ++argc)
if (ARGV[argc] == "--")
break;
for (i = argc + 1; i < ARGC; ++i)
file_wanted[ARGV[i]] = 1;
ARGC = argc;
}
/^@node / {
if (seq > 0)
print "AT_CLEANUP";
split ($0, tmp, ",");
node = substr(tmp[1], 7);
seq = 0;
}
/^@comment file: / {
if (!file_wanted[$3])
message("ignoring " $3);
else
{
message("extracting " $3);
file = $3;
}
}
/^@example$/, /^@end example$/ {
if (!file)
next;
if ($0 ~ /^@example$/)
{
input = files_output[file] ? "\n" : "";
# FNR is starting at 0 instead of 1, and
# #line report the line number of the *next* line.
# => + 2.
# Note that recent Bison support it, but not Flex.
if (file ~ /\.[chy]*$/)
input = "#line " (FNR + 1) " \"" FILENAME "\"\n";
next;
}
if ($0 ~ /^@end example$/)
{
if (input == "")
fatal("no contents: " file);
input = normalize(input);
# No spurious end of line: use printf.
if (files_output[file])
# The parens around the output file seem to be required
# by awk on Mac OS X Tiger (darwin 8.4.6).
printf ("%s", input) >> (output_dir "/" file);
else
printf ("%s", input) > (output_dir "/" file);
close (output_dir "/" file);
files_output[file] = 1;
file = input = "";
next;
}
input = input $0 "\n";
}
# We have to handle CONTENTS line per line, since anchors in AWK are
# referring to the whole string, not the lines.
function normalize(contents, i, lines, n, line, res) {
# Remove the Texinfo tags.
n = split (contents, lines, "\n");
# We don't want the last field which empty: it's behind the last \n.
for (i = 1; i < n; ++i)
{
line = lines[i];
# Whole line commands.
if (line ~ /^@(c |comment|dots|end (ignore|group)|ignore|group)/)
# Gperf accepts empty lines as valid input!!!
if (file ~ /\.gperf$/)
continue;
else
line = "";
gsub (/"@value\{VERSION\}"/, "\"" VERSION "\"", line)
gsub (/^@result\{\}/, "", line);
gsub (/^@error\{\}/, "", line);
gsub ("@[{]", "{", line);
gsub ("@}", "}", line);
gsub ("@@", "@", line);
gsub ("@comment.*", "", line);
res = res line "\n";
}
return res;
}
function message(msg) {
if (! message_printed[msg])
{
print "extexi: " msg > "/dev/stderr";
message_printed[msg] = 1;
}
}
function fatal(msg) {
message(msg);
exit 1
}
|
