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[gawk-diffs] [SCM] gawk branch, non-fatal-io, updated. gawk-4.1.0-1084-g
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From: |
Arnold Robbins |
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Subject: |
[gawk-diffs] [SCM] gawk branch, non-fatal-io, updated. gawk-4.1.0-1084-g4f07d2d |
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Date: |
Tue, 03 Feb 2015 19:17:09 +0000 |
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- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=4f07d2dc9f8a07e0ad22a5a6f2a0226d6c44ebc6
commit 4f07d2dc9f8a07e0ad22a5a6f2a0226d6c44ebc6
Author: Arnold D. Robbins <address@hidden>
Date: Tue Feb 3 21:16:40 2015 +0200
Simplify the feature.
diff --git a/ChangeLog b/ChangeLog
index 5808ef8..b00211f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,22 @@
+2015-02-03 Arnold D. Robbins <address@hidden>
+
+ Interim changes, moving to check upon failure.
+
+ * awk.h (RED_NON_FATAL): Remove.
+ (init_proc_array, non_fatal_io): Add decls.
+ (is_non_fatal_std): Remove decl.
+ * builtin.c (efwrite): If non-fatal, update ERRNO.
+ (do_print_rec): Move check for errflg up.
+ * io.c (non_fatal_io): New variable.
+ (redflags2str): Remove table entry for RED_NON_FATAL.
+ (redirect): Simplify the logic.
+ (is_non_fatal_std): Remove.
+ * main.c (load_procinfo): Call init_proc_array.
+ * str_array.c (proc_store, proc_remove, proc_clear): New functions
+ that set/clear non_fatal_io variable.
+ (proc_array_func): New vtable.
+ (init_proc_array): New function.
+
2015-02-01 Arnold D. Robbins <address@hidden>
Move POSIX requirement for disallowing paramater names with the
diff --git a/NEWS b/NEWS
index b1c7803..98bc090 100644
--- a/NEWS
+++ b/NEWS
@@ -44,6 +44,9 @@ Changes from 4.1.x to 4.2.0
system, these files belong in /etc/profile.d, but the appropriate location
may be different on other platforms.
+11. If PROCINFO["nonfatal"] exists, output with print/printf sets ERRNO
+ upon failure, instead of exiting.
+
Changes from 4.1.1 to 4.1.2
---------------------------
diff --git a/awk.h b/awk.h
index 0f0605f..9cab6ca 100644
--- a/awk.h
+++ b/awk.h
@@ -918,7 +918,6 @@ struct redirect {
# define RED_PTY 512
# define RED_SOCKET 1024
# define RED_TCP 2048
-# define RED_NON_FATAL 4096
char *value;
FILE *ifp; /* input fp, needed for PIPES_SIMULATED */
IOBUF *iop;
@@ -1318,6 +1317,7 @@ extern NODE *do_asort(int nargs);
extern NODE *do_asorti(int nargs);
extern unsigned long (*hash)(const char *s, size_t len, unsigned long hsize,
size_t *code);
extern void init_env_array(NODE *env_node);
+extern void init_proc_array(NODE *proc_node);
/* awkgram.c */
extern NODE *variable(int location, char *name, NODETYPE type);
extern int parse_program(INSTRUCTION **pcode);
@@ -1495,7 +1495,7 @@ extern NODE *do_getline(int intovar, IOBUF *iop);
extern struct redirect *getredirect(const char *str, int len);
extern bool inrec(IOBUF *iop, int *errcode);
extern int nextfile(IOBUF **curfile, bool skipping);
-extern bool is_non_fatal_std(FILE *fp);
+extern bool non_fatal_io;
/* main.c */
extern int arg_assign(char *arg, bool initing);
extern int is_std_var(const char *var);
diff --git a/builtin.c b/builtin.c
index da11f0a..6ad3603 100644
--- a/builtin.c
+++ b/builtin.c
@@ -129,15 +129,15 @@ wrerror:
if (fp == stdout && errno == EPIPE)
gawk_exit(EXIT_FATAL);
-
- /* otherwise die verbosely */
- if ( (rp != NULL && (rp->flag & RED_NON_FATAL) != 0)
- || is_non_fatal_std(fp)) {
+ /* if non-fatal, update ERRNO and be done */
+ if (non_fatal_io) {
update_ERRNO_int(errno);
- } else
+ } else {
+ /* otherwise die verbosely */
fatal(_("%s to \"%s\" failed (%s)"), from,
rp ? rp->value : _("standard output"),
errno ? strerror(errno) : _("reason unknown"));
+ }
}
/* do_exp --- exponential function */
@@ -2175,17 +2175,17 @@ do_print_rec(int nargs, int redirtype)
} else
fp = output_fp;
+ if (errflg) {
+ update_ERRNO_int(errflg);
+ return;
+ }
+
if (fp == NULL)
return;
if (! field0_valid)
(void) get_field(0L, NULL); /* rebuild record */
- if (errflg) {
- update_ERRNO_int(errflg);
- return;
- }
-
f0 = fields_arr[0];
if (do_lint && (f0->flags & NULL_FIELD) != 0)
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 542fb8c..00dd95d 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-03 Arnold D. Robbins <address@hidden>
+
+ * gawktexi.in: Document that it's now just PROCINFO["nonfatal"].
+ * gawk.1: Documment PROCINFO["nonfatal"].
+
2015-02-02 Arnold D. Robbins <address@hidden>
* gawktexi.in: O'Reilly fixes.
diff --git a/doc/gawk.1 b/doc/gawk.1
index 3d5d181..fa50e2a 100644
--- a/doc/gawk.1
+++ b/doc/gawk.1
@@ -13,7 +13,7 @@
. if \w'\(rq' .ds rq "\(rq
. \}
.\}
-.TH GAWK 1 "Aug 03 2014" "Free Software Foundation" "Utility Commands"
+.TH GAWK 1 "Feb 03 2015" "Free Software Foundation" "Utility Commands"
.SH NAME
gawk \- pattern scanning and processing language
.SH SYNOPSIS
@@ -1258,6 +1258,15 @@ This entry is not present if loading dynamic extensions
is not available.
\fBPROCINFO["version"]\fP
the version of
.IR gawk .
+.TP
+\fBPROCINFO["nonfatal"]\fP
+If this element exists, outut with
+.B print
+and
+.B printf
+set
+.B ERRNO
+upon failure, instead of exiting.
.RE
.TP
.B ROUNDMODE
diff --git a/doc/gawk.info b/doc/gawk.info
index 56f1b0e..ae8c044 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -7222,20 +7222,13 @@ error.
`gawk' makes it possible to detect that an error has occurred,
allowing you to possibly recover from the error, or at least print an
-error message of your choosing before exiting. You can do this in one
-of two ways:
-
- * For all output files, by assigning any value to
- `PROCINFO["nonfatal"]'.
-
- * On a per-file basis, by assigning any value to `PROCINFO[FILENAME,
- "nonfatal"]'. Here, FILENAME is the name of the file to which you
- wish output to be nonfatal.
+error message of your choosing before exiting. You can do this by
+assigning any value to `PROCINFO["nonfatal"]'.
Once you have enabled nonfatal output, you must check `ERRNO' after
-every relevant `print' or `printf' statement to see if something went
-wrong. It is also a good idea to initialize `ERRNO' to zero before
-attempting the output. For example:
+every `print' or `printf' statement to see if something went wrong. It
+is also a good idea to initialize `ERRNO' to zero before attempting the
+output. For example:
$ gawk '
> BEGIN {
@@ -7253,9 +7246,6 @@ attempting the output. For example:
program code detect the problem and handle it.
This mechanism works also for standard output and standard error.
-For standard output, you may use `PROCINFO["-", "nonfatal"]' or
-`PROCINFO["/dev/stdout", "nonfatal"]'. For standard error, use
-`PROCINFO["/dev/stderr", "nonfatal"]'.
File: gawk.info, Node: Output Summary, Next: Output Exercises, Prev:
Nonfatal, Up: Printing
@@ -34852,427 +34842,427 @@ Node: Close Files And Pipes308141
Ref: Close Files And Pipes-Footnote-1315326
Ref: Close Files And Pipes-Footnote-2315474
Node: Nonfatal315624
-Node: Output Summary317547
-Node: Output Exercises318768
-Node: Expressions319448
-Node: Values320637
-Node: Constants321314
-Node: Scalar Constants322005
-Ref: Scalar Constants-Footnote-1322867
-Node: Nondecimal-numbers323117
-Node: Regexp Constants326127
-Node: Using Constant Regexps326653
-Node: Variables329816
-Node: Using Variables330473
-Node: Assignment Options332384
-Node: Conversion334259
-Node: Strings And Numbers334783
-Ref: Strings And Numbers-Footnote-1337848
-Node: Locale influences conversions337957
-Ref: table-locale-affects340703
-Node: All Operators341295
-Node: Arithmetic Ops341924
-Node: Concatenation344429
-Ref: Concatenation-Footnote-1347248
-Node: Assignment Ops347355
-Ref: table-assign-ops352334
-Node: Increment Ops353644
-Node: Truth Values and Conditions357075
-Node: Truth Values358158
-Node: Typing and Comparison359207
-Node: Variable Typing360023
-Node: Comparison Operators363690
-Ref: table-relational-ops364100
-Node: POSIX String Comparison367595
-Ref: POSIX String Comparison-Footnote-1368667
-Node: Boolean Ops368806
-Ref: Boolean Ops-Footnote-1373284
-Node: Conditional Exp373375
-Node: Function Calls375113
-Node: Precedence378993
-Node: Locales382653
-Node: Expressions Summary384285
-Node: Patterns and Actions386856
-Node: Pattern Overview387976
-Node: Regexp Patterns389655
-Node: Expression Patterns390198
-Node: Ranges393907
-Node: BEGIN/END397014
-Node: Using BEGIN/END397775
-Ref: Using BEGIN/END-Footnote-1400511
-Node: I/O And BEGIN/END400617
-Node: BEGINFILE/ENDFILE402932
-Node: Empty405829
-Node: Using Shell Variables406146
-Node: Action Overview408419
-Node: Statements410745
-Node: If Statement412593
-Node: While Statement414088
-Node: Do Statement416116
-Node: For Statement417264
-Node: Switch Statement420422
-Node: Break Statement422804
-Node: Continue Statement424845
-Node: Next Statement426672
-Node: Nextfile Statement429053
-Node: Exit Statement431681
-Node: Built-in Variables434092
-Node: User-modified435225
-Ref: User-modified-Footnote-1442928
-Node: Auto-set442990
-Ref: Auto-set-Footnote-1456699
-Ref: Auto-set-Footnote-2456904
-Node: ARGC and ARGV456960
-Node: Pattern Action Summary461178
-Node: Arrays463611
-Node: Array Basics464940
-Node: Array Intro465784
-Ref: figure-array-elements467718
-Ref: Array Intro-Footnote-1470338
-Node: Reference to Elements470466
-Node: Assigning Elements472928
-Node: Array Example473419
-Node: Scanning an Array475178
-Node: Controlling Scanning478198
-Ref: Controlling Scanning-Footnote-1483592
-Node: Numeric Array Subscripts483908
-Node: Uninitialized Subscripts486093
-Node: Delete487710
-Ref: Delete-Footnote-1490459
-Node: Multidimensional490516
-Node: Multiscanning493613
-Node: Arrays of Arrays495202
-Node: Arrays Summary499956
-Node: Functions502047
-Node: Built-in503086
-Node: Calling Built-in504164
-Node: Numeric Functions506159
-Ref: Numeric Functions-Footnote-1510977
-Ref: Numeric Functions-Footnote-2511334
-Ref: Numeric Functions-Footnote-3511382
-Node: String Functions511654
-Ref: String Functions-Footnote-1535155
-Ref: String Functions-Footnote-2535284
-Ref: String Functions-Footnote-3535532
-Node: Gory Details535619
-Ref: table-sub-escapes537400
-Ref: table-sub-proposed538915
-Ref: table-posix-sub540277
-Ref: table-gensub-escapes541814
-Ref: Gory Details-Footnote-1542647
-Node: I/O Functions542798
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-Ref: Time Functions-Footnote-1560690
-Ref: Time Functions-Footnote-2560758
-Ref: Time Functions-Footnote-3560916
-Ref: Time Functions-Footnote-4561027
-Ref: Time Functions-Footnote-5561139
-Ref: Time Functions-Footnote-6561366
-Node: Bitwise Functions561632
-Ref: table-bitwise-ops562194
-Ref: Bitwise Functions-Footnote-1566522
-Node: Type Functions566694
-Node: I18N Functions567846
-Node: User-defined569493
-Node: Definition Syntax570298
-Ref: Definition Syntax-Footnote-1575957
-Node: Function Example576028
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-Node: Function Caveats578971
-Node: Calling A Function579489
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-Node: Pass By Value/Reference583440
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-Node: Library Names608903
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-Node: General Functions612670
-Node: Strtonum Function613773
-Node: Assert Function616795
-Node: Round Function620119
-Node: Cliff Random Function621660
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-Ref: Ordinal Functions-Footnote-2625991
-Node: Join Function626202
-Ref: Join Function-Footnote-1627972
-Node: Getlocaltime Function628172
-Node: Readfile Function631916
-Node: Shell Quoting633888
-Node: Data File Management635289
-Node: Filetrans Function635921
-Node: Rewind Function640017
-Node: File Checking641403
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-Node: Empty Files642937
-Node: Ignoring Assigns644916
-Node: Getopt Function646466
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-Node: Passwd Functions658130
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-Node: Sample Programs679444
-Node: Running Examples680214
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-Node: History Sorting741655
-Node: Extract Program743491
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-Ref: Two-way I/O-Footnote-1800281
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-Node: Gawk Distribution1098682
-Node: Getting1099166
-Node: Extracting1099989
-Node: Distribution contents1101624
-Node: Unix Installation1107689
-Node: Quick Installation1108372
-Node: Shell Startup Files1110783
-Node: Additional Configuration Options1111862
-Node: Configuration Philosophy1113601
-Node: Non-Unix Installation1115970
-Node: PC Installation1116428
-Node: PC Binary Installation1117747
-Node: PC Compiling1119595
-Ref: PC Compiling-Footnote-11122616
-Node: PC Testing1122725
-Node: PC Using1123901
-Node: Cygwin1128016
-Node: MSYS1128839
-Node: VMS Installation1129339
-Node: VMS Compilation1130131
-Ref: VMS Compilation-Footnote-11131353
-Node: VMS Dynamic Extensions1131411
-Node: VMS Installation Details1133095
-Node: VMS Running1135347
-Node: VMS GNV1138183
-Node: VMS Old Gawk1138917
-Node: Bugs1139387
-Node: Other Versions1143270
-Node: Installation summary1149694
-Node: Notes1150750
-Node: Compatibility Mode1151615
-Node: Additions1152397
-Node: Accessing The Source1153322
-Node: Adding Code1154757
-Node: New Ports1160914
-Node: Derived Files1165396
-Ref: Derived Files-Footnote-11170871
-Ref: Derived Files-Footnote-21170905
-Ref: Derived Files-Footnote-31171501
-Node: Future Extensions1171615
-Node: Implementation Limitations1172221
-Node: Extension Design1173469
-Node: Old Extension Problems1174623
-Ref: Old Extension Problems-Footnote-11176140
-Node: Extension New Mechanism Goals1176197
-Ref: Extension New Mechanism Goals-Footnote-11179557
-Node: Extension Other Design Decisions1179746
-Node: Extension Future Growth1181854
-Node: Old Extension Mechanism1182690
-Node: Notes summary1184452
-Node: Basic Concepts1185638
-Node: Basic High Level1186319
-Ref: figure-general-flow1186591
-Ref: figure-process-flow1187190
-Ref: Basic High Level-Footnote-11190419
-Node: Basic Data Typing1190604
-Node: Glossary1193932
-Node: Copying1225861
-Node: GNU Free Documentation License1263417
-Node: Index1288553
+Node: Output Summary317140
+Node: Output Exercises318361
+Node: Expressions319041
+Node: Values320230
+Node: Constants320907
+Node: Scalar Constants321598
+Ref: Scalar Constants-Footnote-1322460
+Node: Nondecimal-numbers322710
+Node: Regexp Constants325720
+Node: Using Constant Regexps326246
+Node: Variables329409
+Node: Using Variables330066
+Node: Assignment Options331977
+Node: Conversion333852
+Node: Strings And Numbers334376
+Ref: Strings And Numbers-Footnote-1337441
+Node: Locale influences conversions337550
+Ref: table-locale-affects340296
+Node: All Operators340888
+Node: Arithmetic Ops341517
+Node: Concatenation344022
+Ref: Concatenation-Footnote-1346841
+Node: Assignment Ops346948
+Ref: table-assign-ops351927
+Node: Increment Ops353237
+Node: Truth Values and Conditions356668
+Node: Truth Values357751
+Node: Typing and Comparison358800
+Node: Variable Typing359616
+Node: Comparison Operators363283
+Ref: table-relational-ops363693
+Node: POSIX String Comparison367188
+Ref: POSIX String Comparison-Footnote-1368260
+Node: Boolean Ops368399
+Ref: Boolean Ops-Footnote-1372877
+Node: Conditional Exp372968
+Node: Function Calls374706
+Node: Precedence378586
+Node: Locales382246
+Node: Expressions Summary383878
+Node: Patterns and Actions386449
+Node: Pattern Overview387569
+Node: Regexp Patterns389248
+Node: Expression Patterns389791
+Node: Ranges393500
+Node: BEGIN/END396607
+Node: Using BEGIN/END397368
+Ref: Using BEGIN/END-Footnote-1400104
+Node: I/O And BEGIN/END400210
+Node: BEGINFILE/ENDFILE402525
+Node: Empty405422
+Node: Using Shell Variables405739
+Node: Action Overview408012
+Node: Statements410338
+Node: If Statement412186
+Node: While Statement413681
+Node: Do Statement415709
+Node: For Statement416857
+Node: Switch Statement420015
+Node: Break Statement422397
+Node: Continue Statement424438
+Node: Next Statement426265
+Node: Nextfile Statement428646
+Node: Exit Statement431274
+Node: Built-in Variables433685
+Node: User-modified434818
+Ref: User-modified-Footnote-1442521
+Node: Auto-set442583
+Ref: Auto-set-Footnote-1456292
+Ref: Auto-set-Footnote-2456497
+Node: ARGC and ARGV456553
+Node: Pattern Action Summary460771
+Node: Arrays463204
+Node: Array Basics464533
+Node: Array Intro465377
+Ref: figure-array-elements467311
+Ref: Array Intro-Footnote-1469931
+Node: Reference to Elements470059
+Node: Assigning Elements472521
+Node: Array Example473012
+Node: Scanning an Array474771
+Node: Controlling Scanning477791
+Ref: Controlling Scanning-Footnote-1483185
+Node: Numeric Array Subscripts483501
+Node: Uninitialized Subscripts485686
+Node: Delete487303
+Ref: Delete-Footnote-1490052
+Node: Multidimensional490109
+Node: Multiscanning493206
+Node: Arrays of Arrays494795
+Node: Arrays Summary499549
+Node: Functions501640
+Node: Built-in502679
+Node: Calling Built-in503757
+Node: Numeric Functions505752
+Ref: Numeric Functions-Footnote-1510570
+Ref: Numeric Functions-Footnote-2510927
+Ref: Numeric Functions-Footnote-3510975
+Node: String Functions511247
+Ref: String Functions-Footnote-1534748
+Ref: String Functions-Footnote-2534877
+Ref: String Functions-Footnote-3535125
+Node: Gory Details535212
+Ref: table-sub-escapes536993
+Ref: table-sub-proposed538508
+Ref: table-posix-sub539870
+Ref: table-gensub-escapes541407
+Ref: Gory Details-Footnote-1542240
+Node: I/O Functions542391
+Ref: I/O Functions-Footnote-1549627
+Node: Time Functions549774
+Ref: Time Functions-Footnote-1560283
+Ref: Time Functions-Footnote-2560351
+Ref: Time Functions-Footnote-3560509
+Ref: Time Functions-Footnote-4560620
+Ref: Time Functions-Footnote-5560732
+Ref: Time Functions-Footnote-6560959
+Node: Bitwise Functions561225
+Ref: table-bitwise-ops561787
+Ref: Bitwise Functions-Footnote-1566115
+Node: Type Functions566287
+Node: I18N Functions567439
+Node: User-defined569086
+Node: Definition Syntax569891
+Ref: Definition Syntax-Footnote-1575550
+Node: Function Example575621
+Ref: Function Example-Footnote-1578542
+Node: Function Caveats578564
+Node: Calling A Function579082
+Node: Variable Scope580040
+Node: Pass By Value/Reference583033
+Node: Return Statement586530
+Node: Dynamic Typing589509
+Node: Indirect Calls590438
+Ref: Indirect Calls-Footnote-1601744
+Node: Functions Summary601872
+Node: Library Functions604574
+Ref: Library Functions-Footnote-1608182
+Ref: Library Functions-Footnote-2608325
+Node: Library Names608496
+Ref: Library Names-Footnote-1611954
+Ref: Library Names-Footnote-2612177
+Node: General Functions612263
+Node: Strtonum Function613366
+Node: Assert Function616388
+Node: Round Function619712
+Node: Cliff Random Function621253
+Node: Ordinal Functions622269
+Ref: Ordinal Functions-Footnote-1625332
+Ref: Ordinal Functions-Footnote-2625584
+Node: Join Function625795
+Ref: Join Function-Footnote-1627565
+Node: Getlocaltime Function627765
+Node: Readfile Function631509
+Node: Shell Quoting633481
+Node: Data File Management634882
+Node: Filetrans Function635514
+Node: Rewind Function639610
+Node: File Checking640996
+Ref: File Checking-Footnote-1642329
+Node: Empty Files642530
+Node: Ignoring Assigns644509
+Node: Getopt Function646059
+Ref: Getopt Function-Footnote-1657523
+Node: Passwd Functions657723
+Ref: Passwd Functions-Footnote-1666563
+Node: Group Functions666651
+Ref: Group Functions-Footnote-1674548
+Node: Walking Arrays674753
+Node: Library Functions Summary676353
+Node: Library Exercises677757
+Node: Sample Programs679037
+Node: Running Examples679807
+Node: Clones680535
+Node: Cut Program681759
+Node: Egrep Program691478
+Ref: Egrep Program-Footnote-1698976
+Node: Id Program699086
+Node: Split Program702731
+Ref: Split Program-Footnote-1706179
+Node: Tee Program706307
+Node: Uniq Program709096
+Node: Wc Program716515
+Ref: Wc Program-Footnote-1720765
+Node: Miscellaneous Programs720859
+Node: Dupword Program722072
+Node: Alarm Program724103
+Node: Translate Program728907
+Ref: Translate Program-Footnote-1733472
+Node: Labels Program733742
+Ref: Labels Program-Footnote-1737093
+Node: Word Sorting737177
+Node: History Sorting741248
+Node: Extract Program743084
+Node: Simple Sed750609
+Node: Igawk Program753677
+Ref: Igawk Program-Footnote-1768001
+Ref: Igawk Program-Footnote-2768202
+Ref: Igawk Program-Footnote-3768324
+Node: Anagram Program768439
+Node: Signature Program771496
+Node: Programs Summary772743
+Node: Programs Exercises773936
+Ref: Programs Exercises-Footnote-1778067
+Node: Advanced Features778158
+Node: Nondecimal Data780106
+Node: Array Sorting781696
+Node: Controlling Array Traversal782393
+Ref: Controlling Array Traversal-Footnote-1790726
+Node: Array Sorting Functions790844
+Ref: Array Sorting Functions-Footnote-1794733
+Node: Two-way I/O794929
+Ref: Two-way I/O-Footnote-1799874
+Ref: Two-way I/O-Footnote-2800060
+Node: TCP/IP Networking800142
+Node: Profiling803015
+Node: Advanced Features Summary811292
+Node: Internationalization813225
+Node: I18N and L10N814705
+Node: Explaining gettext815391
+Ref: Explaining gettext-Footnote-1820416
+Ref: Explaining gettext-Footnote-2820600
+Node: Programmer i18n820765
+Ref: Programmer i18n-Footnote-1825631
+Node: Translator i18n825680
+Node: String Extraction826474
+Ref: String Extraction-Footnote-1827605
+Node: Printf Ordering827691
+Ref: Printf Ordering-Footnote-1830477
+Node: I18N Portability830541
+Ref: I18N Portability-Footnote-1832996
+Node: I18N Example833059
+Ref: I18N Example-Footnote-1835862
+Node: Gawk I18N835934
+Node: I18N Summary836572
+Node: Debugger837911
+Node: Debugging838933
+Node: Debugging Concepts839374
+Node: Debugging Terms841227
+Node: Awk Debugging843799
+Node: Sample Debugging Session844693
+Node: Debugger Invocation845213
+Node: Finding The Bug846597
+Node: List of Debugger Commands853072
+Node: Breakpoint Control854405
+Node: Debugger Execution Control858101
+Node: Viewing And Changing Data861465
+Node: Execution Stack864843
+Node: Debugger Info866480
+Node: Miscellaneous Debugger Commands870497
+Node: Readline Support875526
+Node: Limitations876418
+Node: Debugging Summary878532
+Node: Arbitrary Precision Arithmetic879700
+Node: Computer Arithmetic881116
+Ref: table-numeric-ranges884714
+Ref: Computer Arithmetic-Footnote-1885573
+Node: Math Definitions885630
+Ref: table-ieee-formats888918
+Ref: Math Definitions-Footnote-1889522
+Node: MPFR features889627
+Node: FP Math Caution891298
+Ref: FP Math Caution-Footnote-1892348
+Node: Inexactness of computations892717
+Node: Inexact representation893676
+Node: Comparing FP Values895033
+Node: Errors accumulate896115
+Node: Getting Accuracy897548
+Node: Try To Round900210
+Node: Setting precision901109
+Ref: table-predefined-precision-strings901793
+Node: Setting the rounding mode903582
+Ref: table-gawk-rounding-modes903946
+Ref: Setting the rounding mode-Footnote-1907401
+Node: Arbitrary Precision Integers907580
+Ref: Arbitrary Precision Integers-Footnote-1912480
+Node: POSIX Floating Point Problems912629
+Ref: POSIX Floating Point Problems-Footnote-1916502
+Node: Floating point summary916540
+Node: Dynamic Extensions918734
+Node: Extension Intro920286
+Node: Plugin License921552
+Node: Extension Mechanism Outline922349
+Ref: figure-load-extension922777
+Ref: figure-register-new-function924257
+Ref: figure-call-new-function925261
+Node: Extension API Description927247
+Node: Extension API Functions Introduction928697
+Node: General Data Types933521
+Ref: General Data Types-Footnote-1939260
+Node: Memory Allocation Functions939559
+Ref: Memory Allocation Functions-Footnote-1942398
+Node: Constructor Functions942494
+Node: Registration Functions944228
+Node: Extension Functions944913
+Node: Exit Callback Functions947210
+Node: Extension Version String948458
+Node: Input Parsers949123
+Node: Output Wrappers959002
+Node: Two-way processors963517
+Node: Printing Messages965721
+Ref: Printing Messages-Footnote-1966797
+Node: Updating `ERRNO'966949
+Node: Requesting Values967689
+Ref: table-value-types-returned968417
+Node: Accessing Parameters969374
+Node: Symbol Table Access970605
+Node: Symbol table by name971119
+Node: Symbol table by cookie973100
+Ref: Symbol table by cookie-Footnote-1977244
+Node: Cached values977307
+Ref: Cached values-Footnote-1980806
+Node: Array Manipulation980897
+Ref: Array Manipulation-Footnote-1981995
+Node: Array Data Types982032
+Ref: Array Data Types-Footnote-1984687
+Node: Array Functions984779
+Node: Flattening Arrays988633
+Node: Creating Arrays995525
+Node: Extension API Variables1000296
+Node: Extension Versioning1000932
+Node: Extension API Informational Variables1002833
+Node: Extension API Boilerplate1003898
+Node: Finding Extensions1007707
+Node: Extension Example1008267
+Node: Internal File Description1009039
+Node: Internal File Ops1013106
+Ref: Internal File Ops-Footnote-11024776
+Node: Using Internal File Ops1024916
+Ref: Using Internal File Ops-Footnote-11027299
+Node: Extension Samples1027572
+Node: Extension Sample File Functions1029098
+Node: Extension Sample Fnmatch1036736
+Node: Extension Sample Fork1038227
+Node: Extension Sample Inplace1039442
+Node: Extension Sample Ord1041117
+Node: Extension Sample Readdir1041953
+Ref: table-readdir-file-types1042829
+Node: Extension Sample Revout1043640
+Node: Extension Sample Rev2way1044230
+Node: Extension Sample Read write array1044970
+Node: Extension Sample Readfile1046910
+Node: Extension Sample Time1048005
+Node: Extension Sample API Tests1049354
+Node: gawkextlib1049845
+Node: Extension summary1052503
+Node: Extension Exercises1056192
+Node: Language History1056914
+Node: V7/SVR3.11058570
+Node: SVR41060751
+Node: POSIX1062196
+Node: BTL1063585
+Node: POSIX/GNU1064319
+Node: Feature History1070200
+Node: Common Extensions1083994
+Node: Ranges and Locales1085318
+Ref: Ranges and Locales-Footnote-11089936
+Ref: Ranges and Locales-Footnote-21089963
+Ref: Ranges and Locales-Footnote-31090197
+Node: Contributors1090418
+Node: History summary1095959
+Node: Installation1097329
+Node: Gawk Distribution1098275
+Node: Getting1098759
+Node: Extracting1099582
+Node: Distribution contents1101217
+Node: Unix Installation1107282
+Node: Quick Installation1107965
+Node: Shell Startup Files1110376
+Node: Additional Configuration Options1111455
+Node: Configuration Philosophy1113194
+Node: Non-Unix Installation1115563
+Node: PC Installation1116021
+Node: PC Binary Installation1117340
+Node: PC Compiling1119188
+Ref: PC Compiling-Footnote-11122209
+Node: PC Testing1122318
+Node: PC Using1123494
+Node: Cygwin1127609
+Node: MSYS1128432
+Node: VMS Installation1128932
+Node: VMS Compilation1129724
+Ref: VMS Compilation-Footnote-11130946
+Node: VMS Dynamic Extensions1131004
+Node: VMS Installation Details1132688
+Node: VMS Running1134940
+Node: VMS GNV1137776
+Node: VMS Old Gawk1138510
+Node: Bugs1138980
+Node: Other Versions1142863
+Node: Installation summary1149287
+Node: Notes1150343
+Node: Compatibility Mode1151208
+Node: Additions1151990
+Node: Accessing The Source1152915
+Node: Adding Code1154350
+Node: New Ports1160507
+Node: Derived Files1164989
+Ref: Derived Files-Footnote-11170464
+Ref: Derived Files-Footnote-21170498
+Ref: Derived Files-Footnote-31171094
+Node: Future Extensions1171208
+Node: Implementation Limitations1171814
+Node: Extension Design1173062
+Node: Old Extension Problems1174216
+Ref: Old Extension Problems-Footnote-11175733
+Node: Extension New Mechanism Goals1175790
+Ref: Extension New Mechanism Goals-Footnote-11179150
+Node: Extension Other Design Decisions1179339
+Node: Extension Future Growth1181447
+Node: Old Extension Mechanism1182283
+Node: Notes summary1184045
+Node: Basic Concepts1185231
+Node: Basic High Level1185912
+Ref: figure-general-flow1186184
+Ref: figure-process-flow1186783
+Ref: Basic High Level-Footnote-11190012
+Node: Basic Data Typing1190197
+Node: Glossary1193525
+Node: Copying1225454
+Node: GNU Free Documentation License1263010
+Node: Index1288146
End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index d61772e..a30cf2d 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -10453,21 +10453,10 @@ $ @kbd{gawk 'BEGIN @{ print "hi" > "/no/such/file"
@}'}
@command{gawk} makes it possible to detect that an error has
occurred, allowing you to possibly recover from the error, or
at least print an error message of your choosing before exiting.
-You can do this in one of two ways:
-
address@hidden @bullet
address@hidden
-For all output files, by assigning any value to @code{PROCINFO["nonfatal"]}.
-
address@hidden
-On a per-file basis, by assigning any value to
address@hidden@var{filename}, "nonfatal"]}.
-Here, @var{filename} is the name of the file to which
-you wish output to be nonfatal.
address@hidden itemize
+You can do this by assigning any value to @code{PROCINFO["nonfatal"]}.
Once you have enabled nonfatal output, you must check @code{ERRNO}
-after every relevant @code{print} or @code{printf} statement to
+after every @code{print} or @code{printf} statement to
see if something went wrong. It is also a good idea to initialize
@code{ERRNO} to zero before attempting the output. For example:
@@ -10489,9 +10478,6 @@ Here, @command{gawk} did not produce a fatal error;
instead
it let the @command{awk} program code detect the problem and handle it.
This mechanism works also for standard output and standard error.
-For standard output, you may use @code{PROCINFO["-", "nonfatal"]}
-or @code{PROCINFO["/dev/stdout", "nonfatal"]}. For standard error, use
address@hidden"/dev/stderr", "nonfatal"]}.
@node Output Summary
@section Summary
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 98e749d..154bdc9 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -9949,21 +9949,10 @@ $ @kbd{gawk 'BEGIN @{ print "hi" > "/no/such/file" @}'}
@command{gawk} makes it possible to detect that an error has
occurred, allowing you to possibly recover from the error, or
at least print an error message of your choosing before exiting.
-You can do this in one of two ways:
-
address@hidden @bullet
address@hidden
-For all output files, by assigning any value to @code{PROCINFO["nonfatal"]}.
-
address@hidden
-On a per-file basis, by assigning any value to
address@hidden@var{filename}, "nonfatal"]}.
-Here, @var{filename} is the name of the file to which
-you wish output to be nonfatal.
address@hidden itemize
+You can do this by assigning any value to @code{PROCINFO["nonfatal"]}.
Once you have enabled nonfatal output, you must check @code{ERRNO}
-after every relevant @code{print} or @code{printf} statement to
+after every @code{print} or @code{printf} statement to
see if something went wrong. It is also a good idea to initialize
@code{ERRNO} to zero before attempting the output. For example:
@@ -9985,9 +9974,6 @@ Here, @command{gawk} did not produce a fatal error;
instead
it let the @command{awk} program code detect the problem and handle it.
This mechanism works also for standard output and standard error.
-For standard output, you may use @code{PROCINFO["-", "nonfatal"]}
-or @code{PROCINFO["/dev/stdout", "nonfatal"]}. For standard error, use
address@hidden"/dev/stderr", "nonfatal"]}.
@node Output Summary
@section Summary
diff --git a/io.c b/io.c
index b3819c0..cf5e867 100644
--- a/io.c
+++ b/io.c
@@ -208,6 +208,8 @@
#define INCREMENT_REC(X) X++
#endif
+bool non_fatal_io = false;
+
typedef enum { CLOSE_ALL, CLOSE_TO, CLOSE_FROM } two_way_close_type;
/* Several macros to make the code a bit clearer. */
@@ -718,7 +720,6 @@ redflags2str(int flags)
{ RED_PTY, "RED_PTY" },
{ RED_SOCKET, "RED_SOCKET" },
{ RED_TCP, "RED_TCP" },
- { RED_NON_FATAL, "RED_NON_FATAL" },
{ 0, NULL }
};
@@ -745,9 +746,6 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
static struct redirect *save_rp = NULL; /* hold onto rp that should
* be freed for reuse
*/
- bool is_output = false;
- bool is_non_fatal = false;
-
if (do_sandbox)
fatal(_("redirection not allowed in sandbox mode"));
@@ -756,7 +754,6 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
tflag = RED_APPEND;
/* FALL THROUGH */
case redirect_output:
- is_output = true;
outflag = (RED_FILE|RED_WRITE);
tflag |= outflag;
if (redirtype == redirect_output)
@@ -765,7 +762,6 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
what = ">>";
break;
case redirect_pipe:
- is_output = true;
tflag = (RED_PIPE|RED_WRITE);
what = "|";
break;
@@ -778,7 +774,6 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
what = "<";
break;
case redirect_twoway:
- is_output = true;
tflag = (RED_READ|RED_WRITE|RED_TWOWAY);
what = "|&";
break;
@@ -800,14 +795,6 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
lintwarn(_("filename `%s' for `%s' redirection may be result of
logical expression"),
str, what);
- /* input files/pipes are automatically nonfatal */
- if (is_output) {
- is_non_fatal = (in_PROCINFO("nonfatal", NULL, NULL) != NULL
- || in_PROCINFO(str, "nonfatal", NULL) != NULL);
- if (is_non_fatal)
- tflag |= RED_NON_FATAL;
- }
-
#ifdef HAVE_SOCKETS
/*
* Use /inet4 to force IPv4, /inet6 to force IPv6, and plain
@@ -907,7 +894,7 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
os_restore_mode(fileno(stdin));
/*
- * Don't check is_non_fatal; see input pipe below.
+ * Don't check non_fatal_io; see input pipe below.
* Note that the failure happens upon failure to fork,
* using a non-existant program will still succeed the
* popen().
@@ -948,11 +935,7 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
direction = "to/from";
if (! two_way_open(str, rp)) {
#ifdef HAVE_SOCKETS
- if (inetfile(str, NULL)) {
- *errflg = errno;
- /* do not free rp, saving it for reuse
(save_rp = rp) */
- return NULL;
- } else if (is_non_fatal) {
+ if (inetfile(str, NULL) || non_fatal_io) {
*errflg = errno;
/* do not free rp, saving it for reuse
(save_rp = rp) */
return NULL;
@@ -1038,7 +1021,7 @@ redirect(NODE *redir_exp, int redirtype, int *errflg)
*/
if (errflg != NULL)
*errflg = errno;
- if (! is_non_fatal &&
+ if (! non_fatal_io &&
(redirtype == redirect_output
|| redirtype == redirect_append)) {
/* multiple messages make life easier
for translators */
@@ -1085,25 +1068,6 @@ getredirect(const char *str, int len)
return NULL;
}
-/* is_non_fatal_std --- return true if fp is stdout/stderr and nonfatal */
-
-bool
-is_non_fatal_std(FILE *fp)
-{
- if (in_PROCINFO("nonfatal", NULL, NULL))
- return true;
-
- /* yucky logic. sigh. */
- if (fp == stdout) {
- return ( in_PROCINFO("-", "nonfatal", NULL) != NULL
- || in_PROCINFO("/dev/stdout", "nonfatal", NULL) !=
NULL);
- } else if (fp == stderr) {
- return (in_PROCINFO("/dev/stderr", "nonfatal", NULL) != NULL);
- }
-
- return false;
-}
-
/* close_one --- temporarily close an open file to re-use the fd */
static void
diff --git a/main.c b/main.c
index f2bea91..22e0e51 100644
--- a/main.c
+++ b/main.c
@@ -908,6 +908,7 @@ load_procinfo()
been_here = true;
PROCINFO_node = install_symbol(estrdup("PROCINFO", 8), Node_var_array);
+ init_proc_array(PROCINFO_node);
update_PROCINFO_str("version", VERSION);
update_PROCINFO_str("strftime", def_strftime_format);
diff --git a/str_array.c b/str_array.c
index 33c9ddc..c744542 100644
--- a/str_array.c
+++ b/str_array.c
@@ -88,6 +88,25 @@ afunc_t env_array_func[] = {
env_store,
};
+static NODE **proc_remove(NODE *symbol, NODE *subs);
+static NODE **proc_store(NODE *symbol, NODE *subs);
+static NODE **proc_clear(NODE *symbol, NODE *subs);
+
+/* special case for PROCINFO */
+afunc_t proc_array_func[] = {
+ str_array_init,
+ (afunc_t) 0,
+ null_length,
+ str_lookup,
+ str_exists,
+ proc_clear,
+ proc_remove,
+ str_list,
+ str_copy,
+ str_dump,
+ proc_store,
+};
+
static inline NODE **str_find(NODE *symbol, NODE *s1, size_t code1, unsigned
long hash1);
static void grow_table(NODE *symbol);
@@ -816,3 +835,45 @@ init_env_array(NODE *env_node)
env_node->array_funcs = env_array_func;
}
+
+/* proc_remove --- handle removing an element */
+
+static NODE **
+proc_remove(NODE *symbol, NODE *subs)
+{
+ if (subs && subs->stptr && strcmp(subs->stptr, "nonfatal") == 0)
+ non_fatal_io = false;
+
+ return str_remove(symbol, subs);
+}
+
+/* proc_store --- handle storing an element */
+
+static NODE **
+proc_store(NODE *symbol, NODE *subs)
+{
+ NODE **val = str_exists(symbol, subs);
+
+ if (subs && subs->stptr && strcmp(subs->stptr, "nonfatal") == 0)
+ non_fatal_io = true;
+
+ return val;
+}
+
+/* proc_clear --- handle clearing the whole array */
+
+static NODE **
+proc_clear(NODE *symbol, NODE *subs)
+{
+ non_fatal_io = false;
+
+ return str_clear(symbol, subs);
+}
+
+/* init_proc_array --- set up the pointers for PROCINFO. A bit hacky. */
+
+void
+init_proc_array(NODE *proc_node)
+{
+ proc_node->array_funcs = proc_array_func;
+}
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=e6de21fd260437430ff11dfdea3312603bec6d76
commit e6de21fd260437430ff11dfdea3312603bec6d76
Merge: 9f80b1d 6b63c37
Author: Arnold D. Robbins <address@hidden>
Date: Tue Feb 3 18:31:43 2015 +0200
Merge branch 'master' into non-fatal-io
diff --cc doc/gawk.info
index 0e17bf0,3abb4f4..56f1b0e
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@@ -34542,561 -34628,560 +34718,561 @@@ Inde
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-Node: Names53904
-Ref: Names-Footnote-154997
-Node: This Manual55143
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+Ref: Preface-Footnote-351477
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++Node: Array Example473419
++Node: Scanning an Array475178
++Node: Controlling Scanning478198
++Ref: Controlling Scanning-Footnote-1483592
++Node: Numeric Array Subscripts483908
++Node: Uninitialized Subscripts486093
++Node: Delete487710
++Ref: Delete-Footnote-1490459
++Node: Multidimensional490516
++Node: Multiscanning493613
++Node: Arrays of Arrays495202
++Node: Arrays Summary499956
++Node: Functions502047
++Node: Built-in503086
++Node: Calling Built-in504164
++Node: Numeric Functions506159
++Ref: Numeric Functions-Footnote-1510977
++Ref: Numeric Functions-Footnote-2511334
++Ref: Numeric Functions-Footnote-3511382
++Node: String Functions511654
++Ref: String Functions-Footnote-1535155
++Ref: String Functions-Footnote-2535284
++Ref: String Functions-Footnote-3535532
++Node: Gory Details535619
++Ref: table-sub-escapes537400
++Ref: table-sub-proposed538915
++Ref: table-posix-sub540277
++Ref: table-gensub-escapes541814
++Ref: Gory Details-Footnote-1542647
++Node: I/O Functions542798
++Ref: I/O Functions-Footnote-1550034
++Node: Time Functions550181
++Ref: Time Functions-Footnote-1560690
++Ref: Time Functions-Footnote-2560758
++Ref: Time Functions-Footnote-3560916
++Ref: Time Functions-Footnote-4561027
++Ref: Time Functions-Footnote-5561139
++Ref: Time Functions-Footnote-6561366
++Node: Bitwise Functions561632
++Ref: table-bitwise-ops562194
++Ref: Bitwise Functions-Footnote-1566522
++Node: Type Functions566694
++Node: I18N Functions567846
++Node: User-defined569493
++Node: Definition Syntax570298
++Ref: Definition Syntax-Footnote-1575957
++Node: Function Example576028
++Ref: Function Example-Footnote-1578949
++Node: Function Caveats578971
++Node: Calling A Function579489
++Node: Variable Scope580447
++Node: Pass By Value/Reference583440
++Node: Return Statement586937
++Node: Dynamic Typing589916
++Node: Indirect Calls590845
++Ref: Indirect Calls-Footnote-1602151
++Node: Functions Summary602279
++Node: Library Functions604981
++Ref: Library Functions-Footnote-1608589
++Ref: Library Functions-Footnote-2608732
++Node: Library Names608903
++Ref: Library Names-Footnote-1612361
++Ref: Library Names-Footnote-2612584
++Node: General Functions612670
++Node: Strtonum Function613773
++Node: Assert Function616795
++Node: Round Function620119
++Node: Cliff Random Function621660
++Node: Ordinal Functions622676
++Ref: Ordinal Functions-Footnote-1625739
++Ref: Ordinal Functions-Footnote-2625991
++Node: Join Function626202
++Ref: Join Function-Footnote-1627972
++Node: Getlocaltime Function628172
++Node: Readfile Function631916
++Node: Shell Quoting633888
++Node: Data File Management635289
++Node: Filetrans Function635921
++Node: Rewind Function640017
++Node: File Checking641403
++Ref: File Checking-Footnote-1642736
++Node: Empty Files642937
++Node: Ignoring Assigns644916
++Node: Getopt Function646466
++Ref: Getopt Function-Footnote-1657930
++Node: Passwd Functions658130
++Ref: Passwd Functions-Footnote-1666970
++Node: Group Functions667058
++Ref: Group Functions-Footnote-1674955
++Node: Walking Arrays675160
++Node: Library Functions Summary676760
++Node: Library Exercises678164
++Node: Sample Programs679444
++Node: Running Examples680214
++Node: Clones680942
++Node: Cut Program682166
++Node: Egrep Program691885
++Ref: Egrep Program-Footnote-1699383
++Node: Id Program699493
++Node: Split Program703138
++Ref: Split Program-Footnote-1706586
++Node: Tee Program706714
++Node: Uniq Program709503
++Node: Wc Program716922
++Ref: Wc Program-Footnote-1721172
++Node: Miscellaneous Programs721266
++Node: Dupword Program722479
++Node: Alarm Program724510
++Node: Translate Program729314
++Ref: Translate Program-Footnote-1733879
++Node: Labels Program734149
++Ref: Labels Program-Footnote-1737500
++Node: Word Sorting737584
++Node: History Sorting741655
++Node: Extract Program743491
++Node: Simple Sed751016
++Node: Igawk Program754084
++Ref: Igawk Program-Footnote-1768408
++Ref: Igawk Program-Footnote-2768609
++Ref: Igawk Program-Footnote-3768731
++Node: Anagram Program768846
++Node: Signature Program771903
++Node: Programs Summary773150
++Node: Programs Exercises774343
++Ref: Programs Exercises-Footnote-1778474
++Node: Advanced Features778565
++Node: Nondecimal Data780513
++Node: Array Sorting782103
++Node: Controlling Array Traversal782800
++Ref: Controlling Array Traversal-Footnote-1791133
++Node: Array Sorting Functions791251
++Ref: Array Sorting Functions-Footnote-1795140
++Node: Two-way I/O795336
++Ref: Two-way I/O-Footnote-1800281
++Ref: Two-way I/O-Footnote-2800467
++Node: TCP/IP Networking800549
++Node: Profiling803422
++Node: Advanced Features Summary811699
++Node: Internationalization813632
++Node: I18N and L10N815112
++Node: Explaining gettext815798
++Ref: Explaining gettext-Footnote-1820823
++Ref: Explaining gettext-Footnote-2821007
++Node: Programmer i18n821172
++Ref: Programmer i18n-Footnote-1826038
++Node: Translator i18n826087
++Node: String Extraction826881
++Ref: String Extraction-Footnote-1828012
++Node: Printf Ordering828098
++Ref: Printf Ordering-Footnote-1830884
++Node: I18N Portability830948
++Ref: I18N Portability-Footnote-1833403
++Node: I18N Example833466
++Ref: I18N Example-Footnote-1836269
++Node: Gawk I18N836341
++Node: I18N Summary836979
++Node: Debugger838318
++Node: Debugging839340
++Node: Debugging Concepts839781
++Node: Debugging Terms841634
++Node: Awk Debugging844206
++Node: Sample Debugging Session845100
++Node: Debugger Invocation845620
++Node: Finding The Bug847004
++Node: List of Debugger Commands853479
++Node: Breakpoint Control854812
++Node: Debugger Execution Control858508
++Node: Viewing And Changing Data861872
++Node: Execution Stack865250
++Node: Debugger Info866887
++Node: Miscellaneous Debugger Commands870904
++Node: Readline Support875933
++Node: Limitations876825
++Node: Debugging Summary878939
++Node: Arbitrary Precision Arithmetic880107
++Node: Computer Arithmetic881523
++Ref: table-numeric-ranges885121
++Ref: Computer Arithmetic-Footnote-1885980
++Node: Math Definitions886037
++Ref: table-ieee-formats889325
++Ref: Math Definitions-Footnote-1889929
++Node: MPFR features890034
++Node: FP Math Caution891705
++Ref: FP Math Caution-Footnote-1892755
++Node: Inexactness of computations893124
++Node: Inexact representation894083
++Node: Comparing FP Values895440
++Node: Errors accumulate896522
++Node: Getting Accuracy897955
++Node: Try To Round900617
++Node: Setting precision901516
++Ref: table-predefined-precision-strings902200
++Node: Setting the rounding mode903989
++Ref: table-gawk-rounding-modes904353
++Ref: Setting the rounding mode-Footnote-1907808
++Node: Arbitrary Precision Integers907987
++Ref: Arbitrary Precision Integers-Footnote-1912887
++Node: POSIX Floating Point Problems913036
++Ref: POSIX Floating Point Problems-Footnote-1916909
++Node: Floating point summary916947
++Node: Dynamic Extensions919141
++Node: Extension Intro920693
++Node: Plugin License921959
++Node: Extension Mechanism Outline922756
++Ref: figure-load-extension923184
++Ref: figure-register-new-function924664
++Ref: figure-call-new-function925668
++Node: Extension API Description927654
++Node: Extension API Functions Introduction929104
++Node: General Data Types933928
++Ref: General Data Types-Footnote-1939667
++Node: Memory Allocation Functions939966
++Ref: Memory Allocation Functions-Footnote-1942805
++Node: Constructor Functions942901
++Node: Registration Functions944635
++Node: Extension Functions945320
++Node: Exit Callback Functions947617
++Node: Extension Version String948865
++Node: Input Parsers949530
++Node: Output Wrappers959409
++Node: Two-way processors963924
++Node: Printing Messages966128
++Ref: Printing Messages-Footnote-1967204
++Node: Updating `ERRNO'967356
++Node: Requesting Values968096
++Ref: table-value-types-returned968824
++Node: Accessing Parameters969781
++Node: Symbol Table Access971012
++Node: Symbol table by name971526
++Node: Symbol table by cookie973507
++Ref: Symbol table by cookie-Footnote-1977651
++Node: Cached values977714
++Ref: Cached values-Footnote-1981213
++Node: Array Manipulation981304
++Ref: Array Manipulation-Footnote-1982402
++Node: Array Data Types982439
++Ref: Array Data Types-Footnote-1985094
++Node: Array Functions985186
++Node: Flattening Arrays989040
++Node: Creating Arrays995932
++Node: Extension API Variables1000703
++Node: Extension Versioning1001339
++Node: Extension API Informational Variables1003240
++Node: Extension API Boilerplate1004305
++Node: Finding Extensions1008114
++Node: Extension Example1008674
++Node: Internal File Description1009446
++Node: Internal File Ops1013513
++Ref: Internal File Ops-Footnote-11025183
++Node: Using Internal File Ops1025323
++Ref: Using Internal File Ops-Footnote-11027706
++Node: Extension Samples1027979
++Node: Extension Sample File Functions1029505
++Node: Extension Sample Fnmatch1037143
++Node: Extension Sample Fork1038634
++Node: Extension Sample Inplace1039849
++Node: Extension Sample Ord1041524
++Node: Extension Sample Readdir1042360
++Ref: table-readdir-file-types1043236
++Node: Extension Sample Revout1044047
++Node: Extension Sample Rev2way1044637
++Node: Extension Sample Read write array1045377
++Node: Extension Sample Readfile1047317
++Node: Extension Sample Time1048412
++Node: Extension Sample API Tests1049761
++Node: gawkextlib1050252
++Node: Extension summary1052910
++Node: Extension Exercises1056599
++Node: Language History1057321
++Node: V7/SVR3.11058977
++Node: SVR41061158
++Node: POSIX1062603
++Node: BTL1063992
++Node: POSIX/GNU1064726
++Node: Feature History1070607
++Node: Common Extensions1084401
++Node: Ranges and Locales1085725
++Ref: Ranges and Locales-Footnote-11090343
++Ref: Ranges and Locales-Footnote-21090370
++Ref: Ranges and Locales-Footnote-31090604
++Node: Contributors1090825
++Node: History summary1096366
++Node: Installation1097736
++Node: Gawk Distribution1098682
++Node: Getting1099166
++Node: Extracting1099989
++Node: Distribution contents1101624
++Node: Unix Installation1107689
++Node: Quick Installation1108372
++Node: Shell Startup Files1110783
++Node: Additional Configuration Options1111862
++Node: Configuration Philosophy1113601
++Node: Non-Unix Installation1115970
++Node: PC Installation1116428
++Node: PC Binary Installation1117747
++Node: PC Compiling1119595
++Ref: PC Compiling-Footnote-11122616
++Node: PC Testing1122725
++Node: PC Using1123901
++Node: Cygwin1128016
++Node: MSYS1128839
++Node: VMS Installation1129339
++Node: VMS Compilation1130131
++Ref: VMS Compilation-Footnote-11131353
++Node: VMS Dynamic Extensions1131411
++Node: VMS Installation Details1133095
++Node: VMS Running1135347
++Node: VMS GNV1138183
++Node: VMS Old Gawk1138917
++Node: Bugs1139387
++Node: Other Versions1143270
++Node: Installation summary1149694
++Node: Notes1150750
++Node: Compatibility Mode1151615
++Node: Additions1152397
++Node: Accessing The Source1153322
++Node: Adding Code1154757
++Node: New Ports1160914
++Node: Derived Files1165396
++Ref: Derived Files-Footnote-11170871
++Ref: Derived Files-Footnote-21170905
++Ref: Derived Files-Footnote-31171501
++Node: Future Extensions1171615
++Node: Implementation Limitations1172221
++Node: Extension Design1173469
++Node: Old Extension Problems1174623
++Ref: Old Extension Problems-Footnote-11176140
++Node: Extension New Mechanism Goals1176197
++Ref: Extension New Mechanism Goals-Footnote-11179557
++Node: Extension Other Design Decisions1179746
++Node: Extension Future Growth1181854
++Node: Old Extension Mechanism1182690
++Node: Notes summary1184452
++Node: Basic Concepts1185638
++Node: Basic High Level1186319
++Ref: figure-general-flow1186591
++Ref: figure-process-flow1187190
++Ref: Basic High Level-Footnote-11190419
++Node: Basic Data Typing1190604
++Node: Glossary1193932
++Node: Copying1225861
++Node: GNU Free Documentation License1263417
++Node: Index1288553
End Tag Table
diff --cc doc/gawk.texi
index b113dfe,33c6575..d61772e
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@@ -10488,68 -10434,7 +10435,64 @@@ when closing a pipe
@end cartouche
@end ifnotdocbook
- @c ENDOFRANGE ifc
- @c ENDOFRANGE ofc
- @c ENDOFRANGE pc
- @c ENDOFRANGE cc
address@hidden Nonfatal
address@hidden Enabling Nonfatal Output
+
+This @value{SECTION} describes a @command{gawk}-specific feature.
+
+In standard @command{awk}, output with @code{print} or @code{printf}
+to a nonexistent file, or some other I/O error (such as filling up the
+disk) is a fatal error.
+
address@hidden
+$ @kbd{gawk 'BEGIN @{ print "hi" > "/no/such/file" @}'}
address@hidden gawk: cmd. line:1: fatal: can't redirect to `/no/such/file' (No
such file or directory)
address@hidden example
+
address@hidden makes it possible to detect that an error has
+occurred, allowing you to possibly recover from the error, or
+at least print an error message of your choosing before exiting.
+You can do this in one of two ways:
+
address@hidden @bullet
address@hidden
+For all output files, by assigning any value to @code{PROCINFO["nonfatal"]}.
+
address@hidden
+On a per-file basis, by assigning any value to
address@hidden@var{filename}, "nonfatal"]}.
+Here, @var{filename} is the name of the file to which
+you wish output to be nonfatal.
address@hidden itemize
+
+Once you have enabled nonfatal output, you must check @code{ERRNO}
+after every relevant @code{print} or @code{printf} statement to
+see if something went wrong. It is also a good idea to initialize
address@hidden to zero before attempting the output. For example:
+
address@hidden
+$ @kbd{gawk '}
+> @kbd{BEGIN @{}
+> @kbd{ PROCINFO["nonfatal"] = 1}
+> @kbd{ ERRNO = 0}
+> @kbd{ print "hi" > "/no/such/file"}
+> @kbd{ if (ERRNO) @{}
+> @kbd{ print("Output failed:", ERRNO) > "/dev/stderr"}
+> @kbd{ exit 1}
+> @kbd{ @}}
+> @address@hidden'}
address@hidden Output failed: No such file or directory
address@hidden example
+
+Here, @command{gawk} did not produce a fatal error; instead
+it let the @command{awk} program code detect the problem and handle it.
+
+This mechanism works also for standard output and standard error.
+For standard output, you may use @code{PROCINFO["-", "nonfatal"]}
+or @code{PROCINFO["/dev/stdout", "nonfatal"]}. For standard error, use
address@hidden"/dev/stderr", "nonfatal"]}.
+
@node Output Summary
@section Summary
diff --cc doc/gawktexi.in
index ddf5374,6a89010..98e749d
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@@ -9985,68 -9930,7 +9931,64 @@@ In POSIX mode (@pxref{Options}), @comma
when closing a pipe.
@end sidebar
- @c ENDOFRANGE ifc
- @c ENDOFRANGE ofc
- @c ENDOFRANGE pc
- @c ENDOFRANGE cc
address@hidden Nonfatal
address@hidden Enabling Nonfatal Output
+
+This @value{SECTION} describes a @command{gawk}-specific feature.
+
+In standard @command{awk}, output with @code{print} or @code{printf}
+to a nonexistent file, or some other I/O error (such as filling up the
+disk) is a fatal error.
+
address@hidden
+$ @kbd{gawk 'BEGIN @{ print "hi" > "/no/such/file" @}'}
address@hidden gawk: cmd. line:1: fatal: can't redirect to `/no/such/file' (No
such file or directory)
address@hidden example
+
address@hidden makes it possible to detect that an error has
+occurred, allowing you to possibly recover from the error, or
+at least print an error message of your choosing before exiting.
+You can do this in one of two ways:
+
address@hidden @bullet
address@hidden
+For all output files, by assigning any value to @code{PROCINFO["nonfatal"]}.
+
address@hidden
+On a per-file basis, by assigning any value to
address@hidden@var{filename}, "nonfatal"]}.
+Here, @var{filename} is the name of the file to which
+you wish output to be nonfatal.
address@hidden itemize
+
+Once you have enabled nonfatal output, you must check @code{ERRNO}
+after every relevant @code{print} or @code{printf} statement to
+see if something went wrong. It is also a good idea to initialize
address@hidden to zero before attempting the output. For example:
+
address@hidden
+$ @kbd{gawk '}
+> @kbd{BEGIN @{}
+> @kbd{ PROCINFO["nonfatal"] = 1}
+> @kbd{ ERRNO = 0}
+> @kbd{ print "hi" > "/no/such/file"}
+> @kbd{ if (ERRNO) @{}
+> @kbd{ print("Output failed:", ERRNO) > "/dev/stderr"}
+> @kbd{ exit 1}
+> @kbd{ @}}
+> @address@hidden'}
address@hidden Output failed: No such file or directory
address@hidden example
+
+Here, @command{gawk} did not produce a fatal error; instead
+it let the @command{awk} program code detect the problem and handle it.
+
+This mechanism works also for standard output and standard error.
+For standard output, you may use @code{PROCINFO["-", "nonfatal"]}
+or @code{PROCINFO["/dev/stdout", "nonfatal"]}. For standard error, use
address@hidden"/dev/stderr", "nonfatal"]}.
+
@node Output Summary
@section Summary
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 56 +
INSTALL | 6 +-
Makefile.in | 48 +-
NEWS | 20 +-
aclocal.m4 | 65 +-
awk.h | 5 +-
awkgram.c | 746 +++++-----
awkgram.y | 24 +-
awklib/Makefile.in | 24 +-
awklib/eg/lib/assert.awk | 2 +-
awklib/eg/lib/bits2str.awk | 2 +-
awklib/eg/lib/quicksort.awk | 5 +-
builtin.c | 20 +-
command.c | 4 +-
compile | 2 +-
config.guess | 169 +--
config.sub | 32 +-
configure | 68 +-
configure.ac | 4 +-
depcomp | 37 +-
doc/ChangeLog | 46 +
doc/Makefile.in | 24 +-
doc/gawk.1 | 11 +-
doc/gawk.info | 2674 ++++++++++++++++++----------------
doc/gawk.texi | 1530 +++++++++-----------
doc/gawktexi.in | 1500 +++++++++-----------
extension/ChangeLog | 8 +
extension/INSTALL | 6 +-
extension/Makefile.in | 115 +-
extension/aclocal.m4 | 76 +-
extension/build-aux/ar-lib | 2 +-
extension/build-aux/compile | 2 +-
extension/build-aux/config.guess | 169 +--
extension/build-aux/config.sub | 32 +-
extension/build-aux/depcomp | 37 +-
extension/build-aux/install-sh | 31 +-
extension/build-aux/ltmain.sh | 130 ++-
extension/build-aux/missing | 6 +-
extension/configh.in | 22 -
extension/configure | 2995 ++++++++------------------------------
extension/configure.ac | 5 +-
extension/m4/ChangeLog | 4 +
extension/m4/gettext.m4 | 383 -----
extension/m4/iconv.m4 | 214 ---
extension/m4/intlmacosx.m4 | 51 -
extension/m4/libtool.m4 | 527 ++++++--
extension/m4/ltoptions.m4 | 57 +-
extension/m4/ltsugar.m4 | 2 +-
extension/m4/ltversion.m4 | 12 +-
extension/m4/lt~obsolete.m4 | 2 +-
extension/m4/po.m4 | 449 ------
extras/Makefile.in | 24 +-
install-sh | 31 +-
io.c | 46 +-
m4/ChangeLog | 5 +
m4/iconv.m4 | 61 +-
m4/po.m4 | 2 +-
main.c | 1 +
missing | 6 +-
po/ChangeLog | 4 +
po/POTFILES.in | 6 +
str_array.c | 61 +
symbol.c | 61 +
test/ChangeLog | 13 +
test/Makefile.am | 18 +-
test/Makefile.in | 50 +-
test/Maketests | 5 +
test/callparam.awk | 6 +
test/callparam.ok | 2 +
test/exit.sh | 2 +-
test/paramasfunc1.awk | 9 +
test/paramasfunc1.ok | 3 +
test/paramasfunc2.awk | 10 +
test/paramasfunc2.ok | 3 +
ylwrap | 59 +-
75 files changed, 5318 insertions(+), 7631 deletions(-)
delete mode 100644 extension/m4/gettext.m4
delete mode 100644 extension/m4/iconv.m4
delete mode 100644 extension/m4/intlmacosx.m4
delete mode 100644 extension/m4/po.m4
create mode 100644 test/callparam.awk
create mode 100644 test/callparam.ok
create mode 100644 test/paramasfunc1.awk
create mode 100644 test/paramasfunc1.ok
create mode 100644 test/paramasfunc2.awk
create mode 100644 test/paramasfunc2.ok
hooks/post-receive
--
gawk
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Arnold Robbins <=