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
|
Copyright (C) 2010, 2011, 2012 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
Changes from 4.0.2 to 4.1
-------------------------
1. The three executables gawk, pgawk, and dgawk, have been merged into
one, named just gawk. As a result:
* The -R option is gone
* Use -D to run the debugger. An optional file argument is a
list of commands to run first.
* Use -o to do pretty-printing only.
* Use -p to do profiling.
2. The new -l option is used for loading dynamic extensions.
3. The new -i option is used for loading awk library files.
4. Gawk now supports high precision arithmetic with MPFR.
5. A number of facilities from xgawk have been merged in!
6. The dynamic extension interface has been completely redone! See the doc.
7. The and(), or() and xor() functions now take any number of arguments,
with a minimum of two.
8. New arrays: SYMTAB, FUNCTAB, and PROCINFO["identifiers"]. See the manual.
Changes from 4.0.1 to 4.0.2
---------------------------
1. Infrastructure upgrades: Autoconf 2.69, Automake 1.12.4, bison 2.6.5.
2. Various minor bug fixes and documentation updates.
Changes from 4.0.0 to 4.0.1
---------------------------
1. The default handling of backslash in sub() and gsub() has been reverted to
the behavior of 3.1. It was silly to think I could break compatibility that
way, even for standards compliance.
2. Completed the implementation of Rational Range Interpretation.
3. Failure to get the group set is no longer a fatal error.
4. Lots of minor bugs fixed and portability clean-ups along the way. See
the ChangeLog for details.
Changes from 3.1.8 to 4.0.0
---------------------------
1. The special files /dev/pid, /dev/ppid, /dev/pgrpid and /dev/user are
now completely gone. Use PROCINFO instead.
2. The POSIX 2008 behavior for `sub' and `gsub' are now the default.
THIS CHANGES BEHAVIOR!!!!
3. The \s and \S escape sequences are now recognized in regular expressions.
4. The split() function accepts an optional fourth argument which is an array
to hold the values of the separators.
5. The new -b / --characters-as-bytes option means "hands off my data"; gawk
won't try to treat input as a multibyte string.
6. There is a new --sandbox option; see the doc.
7. Indirect function calls are now available.
8. Interval expressions are now part of default regular expressions for
GNU Awk syntax.
9. --gen-po is now correctly named --gen-pot.
10. switch / case is now enabled by default. There's no longer a need
for a configure-time option.
11. Gawk now supports BEGINFILE and ENDFILE. See the doc for details.
12. Directories named on the command line now produce a warning, not
a fatal error, unless --posix or --traditional.
13. The new FPAT variable allows you to specify a regexp that matches
the fields, instead of matching the field separator. The new patsplit()
function gives the same capability for splitting.
14. All long options now have short options, for use in `#!' scripts.
15. Support for IPv6 is added via the /inet6/... special file. /inet4/...
forces IPv4 and /inet chooses the system default (probably IPv4).
16. Added a warning for /[:space:]/ that should be /[[:space:]]/.
17. Merged with John Haque's byte code internals. Adds dgawk debugger and
possibly improved performance.
18. `break' and `continue' are no longer valid outside a loop, even with
--traditional.
19. POSIX character classes work with --traditional (BWK awk supports them).
20. Nuked redundant --compat, --copyleft, and --usage long options.
21. Arrays of arrays added. See the doc.
22. Per the GNU Coding Standards, dynamic extensions must now define
a global symbol indicating that they are GPL-compatible. See
the documentation and example extensions.
THIS CHANGES BEHAVIOR!!!!
23. In POSIX mode, string comparisons use strcoll/wcscoll.
THIS CHANGES BEHAVIOR!!!!
24. The option for raw sockets was removed, since it was never implemented.
25. Gawk now treats ranges of the form [d-h] as if they were in the C
locale, no matter what kind of regexp is being used, and even if
--posix. The latest POSIX standard allows this, and the documentation
has been updated. Maybe this will stop all the questions about
[a-z] matching uppercase letters.
THIS CHANGES BEHAVIOR!!!!
26. PROCINFO["strftime"] now holds the default format for strftime().
27. Updated to latest infrastructure: Autoconf 2.68, Automake 1.11.1,
Gettext 0.18.1, Bison 2.5.
28. Many code cleanups. Removed code for many old, unsupported systems:
- Atari
- Amiga
- BeOS
- Cray
- MIPS RiscOS
- MS-DOS with Microsoft Compiler
- MS-Windows with Microsoft Compiler
- NeXT
- SunOS 3.x, Sun 386 (Road Runner)
- Tandem (non-POSIX)
- Prestandard VAX C compiler for VAX/VMS
- Probably others that I've forgotten
29. If PROCINFO["sorted_in"] exists, for(iggy in foo) loops sort the
indices before looping over them. The value of this element
provides control over how the indices are sorted before the loop
traversal starts. See the manual.
30. A new isarray() function exists to distinguish if an item is an array
or not, to make it possible to traverse multidimensional arrays.
31. asort() and asorti() take a third argument specifying how to sort.
See the doc.
|
