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[gawk-diffs] [SCM] gawk branch, symtab, updated. 9e2703f7ca0b35129a94465
|
From: |
Arnold Robbins |
|
Subject: |
[gawk-diffs] [SCM] gawk branch, symtab, updated. 9e2703f7ca0b35129a94465654d0e18d14048dbc |
|
Date: |
Tue, 02 Oct 2012 14:46:38 +0000 |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "gawk".
The branch, symtab has been updated
via 9e2703f7ca0b35129a94465654d0e18d14048dbc (commit)
from b9a82851866f84ca306a2802b4ca50089a2fe683 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=9e2703f7ca0b35129a94465654d0e18d14048dbc
commit 9e2703f7ca0b35129a94465654d0e18d14048dbc
Author: Arnold D. Robbins <address@hidden>
Date: Tue Oct 2 16:26:15 2012 +0200
Document SYMTAB and FUNCTAB. Disable for --posix.
diff --git a/ChangeLog b/ChangeLog
index 4e1eb4d..9110584 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-02 Arnold D. Robbins <address@hidden>
+
+ * symbol.c (lookup): If do_posix, skip the global table.
+
2012-09-25 Arnold D. Robbins <address@hidden>
First cut at SYMTAB and FUNCTAB. This does the following:
diff --git a/doc/ChangeLog b/doc/ChangeLog
index f84622d..0efd3f7 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,8 @@
+2012-10-02 Arnold D. Robbins <address@hidden>
+
+ * gawk.texi, gawk.1, awkcard.in: Document FUNCTAB, SYMTAB, and
+ PROCINFO["identifiers"].
+
2012-09-23 Arnold D. Robbins <address@hidden>
* gawk.texi (Nextfile Statement): Document that it's now part of POSIX
diff --git a/doc/awkcard.in b/doc/awkcard.in
index 372d558..9fae7cc 100644
--- a/doc/awkcard.in
+++ b/doc/awkcard.in
@@ -551,7 +551,8 @@ variables, each element being the value of
that variable.
T}
\*(CB\*(FCERRNO\fP T{
-String describing the error if a
+... String describing the error if a
+String error value if a
\*(FCgetline\*(FR
redirection or read
fails, or if
@@ -580,6 +581,10 @@ T}
Input field separator, a space by default
(see \fHFields\fP above).
T}
+\*(CB\*(FCFUNCTAB\fP T{
+An array indexed by the names of all user-defined
+and extension functions.\*(CD
+T}
\*(CB\*(FCIGNORECASE\fP T{
If non-zero, all regular expression and string
operations ignore case.
@@ -594,13 +599,13 @@ T}
\*(CB\*(FCLINT\fP T{
Provides dynamic control of the \*(FC\-\^\-lint\fP
option from within an AWK program.
-When true, \*(GK
-prints lint warnings.
-When assigned the string value \*(FC"fatal"\*(FR,
-lint warnings become fatal errors.
-Any other true value just prints warnings.\*(CD
+... When true, \*(GK
+... prints lint warnings.
+... When assigned the string value \*(FC"fatal"\*(FR,
+... lint warnings become fatal errors.
+... Any other true value just prints warnings.
T}
-\*(FCNF\fP T{
+\*(CD\*(FCNF\fP T{
Number of fields in the current input record.
T}
\*(FCNR\fP T{
@@ -650,6 +655,11 @@ Character(s) used to separate multiple subscripts
in array elements, by default \*(FC"\e034"\*(FR. (See
\fHArrays\fP below).
T}
+\*(CB\*(FCSYMTAB\fP T{
+An array indexed by the names of all global
+variables and arrays. May be used to indirectly
+set variable and array values.\*(CD
+T}
\*(CB\*(FCTEXTDOMAIN\fP T{
The internationalization text domain,
for finding the localized
diff --git a/doc/gawk.1 b/doc/gawk.1
index 494ab16..30524e5 100644
--- a/doc/gawk.1
+++ b/doc/gawk.1
@@ -14,7 +14,7 @@
. if \w'\(rq' .ds rq "\(rq
. \}
.\}
-.TH GAWK 1 "Aug 09 2012" "Free Software Foundation" "Utility Commands"
+.TH GAWK 1 "Oct 02 2012" "Free Software Foundation" "Utility Commands"
.SH NAME
gawk \- pattern scanning and processing language
.SH SYNOPSIS
@@ -989,6 +989,12 @@ The input field separator, a space by default. See
.BR Fields ,
above.
.TP
+.B FUNCTAB
+An array whose indices are the names of all the user-defined
+or extension functions in the program.
+.BR NOTE :
+The array values cannot currently be used.
+.TP
.B IGNORECASE
Controls the case-sensitivity of all regular expression
and string operations. If
@@ -1108,6 +1114,35 @@ or \fB"FIELDWIDTHS"\fP if field splitting with
.B FIELDWIDTHS
is in effect.
.TP
+\fBPROCINFO["identifiers"]\fP
+A subarray, indexed by the names of all identifiers used in the
+text of the AWK program. For each identifier, the value of the element is one
of the following:
+.RS
+.TP
+\fB"array"\fR
+The identifier is an array.
+.TP
+\fB"extension"\fR
+The identifier is an extension function loaded via
+.BR @load .
+.TP
+\fB"scalar"\fR
+The identifier is a scalar.
+.TP
+\fB"untyped"\fR
+The identifier is untyped (could be used as a scalar or array,
+.I gawk
+doesn't know yet).
+.TP
+\fB"user"\fR
+The identifier is a user-defined function.
+.RE
+The values indicate what
+.I gawk
+knows about the identifiers after it has finished parsing the program; they are
+.I not
+updated while the program runs.
+.TP
\fBPROCINFO["gid"]\fP
the value of the
.IR getgid (2)
@@ -1236,6 +1271,25 @@ The length of the string matched by
The character used to separate multiple subscripts in array
elements, by default \fB"\e034"\fR.
.TP
+.B SYMTAB
+An array whose indices are the names of all currently defined
+global variables and arrays in the program. The array may be used
+for indirect access to read or write the value of a variable:
+.PP
+.RS
+.ft B
+foo = 5
+SYMTAB["foo"] = 4
+print foo # prints 4
+.ft R
+.RE
+.PP
+The
+.B isarray()
+function may be used to test if an element in
+.B SYMTAB
+is an array.
+.TP
.B TEXTDOMAIN
The text domain of the \*(AK program; used to find the localized
translations for the program's strings.
diff --git a/doc/gawk.info b/doc/gawk.info
index 2d75333..67fb4a1 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -9602,6 +9602,11 @@ with a pound sign (`#').
create or remove fields from the current record. *Note Changing
Fields::.
+`FUNCTAB #'
+ An array whose indices are the names of all the user-defined or
+ extension functions in the program. *NOTE*: The array values
+ cannot currently be used.
+
`NR'
The number of input records `awk' has processed since the
beginning of the program's execution (*note Records::). `NR' is
@@ -9624,6 +9629,32 @@ with a pound sign (`#').
effect, or `"FPAT"' if field matching with `FPAT' is in
effect.
+ `PROCINFO["identifiers"]'
+ A subarray, indexed by the names of all identifiers used in
+ the text of the AWK program. For each identifier, the value
+ of the element is one of the following:
+
+ `"array"'
+ The identifier is an array.
+
+ `"extension"'
+ The identifier is an extension function loaded via
+ address@hidden'.
+
+ `"scalar"'
+ The identifier is a scalar.
+
+ `"untyped"'
+ The identifier is untyped (could be used as a scalar or
+ array, `gawk' doesn't know yet).
+
+ `"user"'
+ The identifier is a user-defined function.
+
+ The values indicate what `gawk' knows about the identifiers
+ after it has finished parsing the program; they are _not_
+ updated while the program runs.
+
`PROCINFO["gid"]'
The value of the `getgid()' system call.
@@ -9705,6 +9736,23 @@ with a pound sign (`#').
implementations, or if `gawk' is in compatibility mode (*note
Options::), it is not special.
+`SYMTAB #'
+ An array whose indices are the names of all currently defined
+ global variables and arrays in the program. The array may be used
+ for indirect access to read or write the value of a variable:
+
+ foo = 5
+ SYMTAB["foo"] = 4
+ print foo # prints 4
+
+ The `isarray()' function (*note Type Functions::) may be used to
+ test if an element in `SYMTAB' is an array.
+
+ NOTE: In order to avoid severe time-travel paradoxes (as well
+ as to avoid difficult implementation issues), neither
+ `FUNCTAB' nor `SYMTAB' are available as elements within the
+ `SYMTAB' array.
+
Advanced Notes: Changing `NR' and `FNR'
---------------------------------------
@@ -25967,7 +26015,7 @@ Index
(line 67)
* advanced features, data files as single record: Records. (line 180)
* advanced features, fixed-width data: Constant Size. (line 9)
-* advanced features, FNR/NR variables: Auto-set. (line 225)
+* advanced features, FNR/NR variables: Auto-set. (line 273)
* advanced features, gawk: Advanced Features. (line 6)
* advanced features, gawk, network programming: TCP/IP Networking.
(line 6)
@@ -26472,7 +26520,7 @@ Index
(line 47)
* dark corner, FILENAME variable <1>: Auto-set. (line 93)
* dark corner, FILENAME variable: Getline Notes. (line 19)
-* dark corner, FNR/NR variables: Auto-set. (line 225)
+* dark corner, FNR/NR variables: Auto-set. (line 273)
* dark corner, format-control characters: Control Letters. (line 18)
* dark corner, FS as null string: Single Character Fields.
(line 20)
@@ -26642,6 +26690,7 @@ Index
* differences in awk and gawk, FIELDWIDTHS variable: User-modified.
(line 35)
* differences in awk and gawk, FPAT variable: User-modified. (line 45)
+* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 119)
* differences in awk and gawk, function arguments (gawk): Calling Built-in.
(line 16)
* differences in awk and gawk, getline command: Getline. (line 19)
@@ -26666,14 +26715,14 @@ Index
(line 6)
* differences in awk and gawk, print/printf statements: Format Modifiers.
(line 13)
-* differences in awk and gawk, PROCINFO array: Auto-set. (line 124)
+* differences in awk and gawk, PROCINFO array: Auto-set. (line 129)
* differences in awk and gawk, record separators: Records. (line 117)
* differences in awk and gawk, regexp constants: Using Constant Regexps.
(line 43)
* differences in awk and gawk, regular expressions: Case-sensitivity.
(line 26)
* differences in awk and gawk, RS/RT variables: Records. (line 172)
-* differences in awk and gawk, RT variable: Auto-set. (line 214)
+* differences in awk and gawk, RT variable: Auto-set. (line 245)
* differences in awk and gawk, single-character fields: Single Character
Fields.
(line 6)
* differences in awk and gawk, split() function: String Functions.
@@ -26682,6 +26731,7 @@ Index
* differences in awk and gawk, strings, storing: Records. (line 192)
* differences in awk and gawk, strtonum() function (gawk): String Functions.
(line 404)
+* differences in awk and gawk, SYMTAB variable: Auto-set. (line 253)
* differences in awk and gawk, TEXTDOMAIN variable: User-modified.
(line 162)
* differences in awk and gawk, trunc-mod operation: Arithmetic Ops.
@@ -26952,7 +27002,7 @@ Index
* floating-point, numbers: General Arithmetic. (line 6)
* FNR variable <1>: Auto-set. (line 103)
* FNR variable: Records. (line 6)
-* FNR variable, changing: Auto-set. (line 225)
+* FNR variable, changing: Auto-set. (line 273)
* for statement: For Statement. (line 6)
* for statement, in arrays: Scanning an Array. (line 20)
* format specifiers, mixing regular with positional specifiers: Printf
Ordering.
@@ -26995,6 +27045,7 @@ Index
* FSF (Free Software Foundation) <1>: Glossary. (line 301)
* FSF (Free Software Foundation) <2>: Getting. (line 10)
* FSF (Free Software Foundation): Manual History. (line 6)
+* FUNCTAB array: Auto-set. (line 119)
* function calls: Function Calls. (line 6)
* function calls, indirect: Indirect Calls. (line 6)
* function pointers: Indirect Calls. (line 6)
@@ -27082,6 +27133,7 @@ Index
* gawk, FPAT variable in <1>: User-modified. (line 45)
* gawk, FPAT variable in: Splitting By Content.
(line 26)
+* gawk, FUNCTAB array in: Auto-set. (line 119)
* gawk, function arguments and: Calling Built-in. (line 16)
* gawk, functions, adding: Dynamic Extensions. (line 9)
* gawk, hexadecimal numbers and: Nondecimal-numbers. (line 42)
@@ -27113,7 +27165,7 @@ Index
* gawk, OS/2 version of: PC Using. (line 11)
* gawk, PROCINFO array in <1>: Two-way I/O. (line 116)
* gawk, PROCINFO array in <2>: Time Functions. (line 46)
-* gawk, PROCINFO array in: Auto-set. (line 124)
+* gawk, PROCINFO array in: Auto-set. (line 129)
* gawk, regexp constants and: Using Constant Regexps.
(line 28)
* gawk, regular expressions, case sensitivity: Case-sensitivity.
@@ -27121,7 +27173,7 @@ Index
* gawk, regular expressions, operators: GNU Regexp Operators.
(line 6)
* gawk, regular expressions, precedence: Regexp Operators. (line 161)
-* gawk, RT variable in <1>: Auto-set. (line 214)
+* gawk, RT variable in <1>: Auto-set. (line 245)
* gawk, RT variable in <2>: Getline/Variable/File.
(line 10)
* gawk, RT variable in <3>: Multiple Line. (line 129)
@@ -27130,6 +27182,7 @@ Index
* gawk, source code, obtaining: Getting. (line 6)
* gawk, splitting fields and: Constant Size. (line 87)
* gawk, string-translation functions: I18N Functions. (line 6)
+* gawk, SYMTAB array in: Auto-set. (line 253)
* gawk, TEXTDOMAIN variable in: User-modified. (line 162)
* gawk, timestamps: Time Functions. (line 6)
* gawk, uses for: Preface. (line 36)
@@ -27532,9 +27585,9 @@ Index
(line 49)
* noassign.awk program: Ignoring Assigns. (line 15)
* not Boolean-logic operator: Boolean Ops. (line 6)
-* NR variable <1>: Auto-set. (line 119)
+* NR variable <1>: Auto-set. (line 124)
* NR variable: Records. (line 6)
-* NR variable, changing: Auto-set. (line 225)
+* NR variable, changing: Auto-set. (line 273)
* null strings <1>: Basic Data Typing. (line 26)
* null strings <2>: Truth Values. (line 6)
* null strings <3>: Regexp Field Splitting.
@@ -27817,7 +27870,7 @@ Index
* PROCINFO array <3>: Passwd Functions. (line 6)
* PROCINFO array <4>: Two-way I/O. (line 116)
* PROCINFO array <5>: Time Functions. (line 46)
-* PROCINFO array <6>: Auto-set. (line 124)
+* PROCINFO array <6>: Auto-set. (line 129)
* PROCINFO array: Obsolete. (line 11)
* profiling awk programs: Profiling. (line 6)
* profiling awk programs, dynamically: Profiling. (line 171)
@@ -27959,7 +28012,7 @@ Index
* right angle bracket (>), >> operator (I/O): Redirection. (line 50)
* right shift, bitwise: Bitwise Functions. (line 32)
* Ritchie, Dennis: Basic Data Typing. (line 55)
-* RLENGTH variable: Auto-set. (line 201)
+* RLENGTH variable: Auto-set. (line 232)
* RLENGTH variable, match() function and: String Functions. (line 223)
* Robbins, Arnold <1>: Future Extensions. (line 6)
* Robbins, Arnold <2>: Bugs. (line 32)
@@ -27986,9 +28039,9 @@ Index
* RS variable: Records. (line 20)
* RS variable, multiline records and: Multiple Line. (line 17)
* rshift() function (gawk): Bitwise Functions. (line 52)
-* RSTART variable: Auto-set. (line 207)
+* RSTART variable: Auto-set. (line 238)
* RSTART variable, match() function and: String Functions. (line 223)
-* RT variable <1>: Auto-set. (line 214)
+* RT variable <1>: Auto-set. (line 245)
* RT variable <2>: Getline/Variable/File.
(line 10)
* RT variable <3>: Multiple Line. (line 129)
@@ -28180,6 +28233,7 @@ Index
* substr() function: String Functions. (line 481)
* Sumner, Andrew: Other Versions. (line 55)
* switch statement: Switch Statement. (line 6)
+* SYMTAB array: Auto-set. (line 253)
* syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops.
(line 148)
* system() function: I/O Functions. (line 63)
@@ -28613,264 +28667,264 @@ Node: Built-in Variables393879
Node: User-modified394974
Ref: User-modified-Footnote-1403329
Node: Auto-set403391
-Ref: Auto-set-Footnote-1413299
-Node: ARGC and ARGV413504
-Node: Arrays417355
-Node: Array Basics418860
-Node: Array Intro419686
-Node: Reference to Elements424004
-Node: Assigning Elements426274
-Node: Array Example426765
-Node: Scanning an Array428497
-Node: Controlling Scanning430811
-Ref: Controlling Scanning-Footnote-1435744
-Node: Delete436060
-Ref: Delete-Footnote-1438825
-Node: Numeric Array Subscripts438882
-Node: Uninitialized Subscripts441065
-Node: Multi-dimensional442693
-Node: Multi-scanning445787
-Node: Arrays of Arrays447378
-Node: Functions452023
-Node: Built-in452845
-Node: Calling Built-in453923
-Node: Numeric Functions455911
-Ref: Numeric Functions-Footnote-1459743
-Ref: Numeric Functions-Footnote-2460100
-Ref: Numeric Functions-Footnote-3460148
-Node: String Functions460417
-Ref: String Functions-Footnote-1483914
-Ref: String Functions-Footnote-2484043
-Ref: String Functions-Footnote-3484291
-Node: Gory Details484378
-Ref: table-sub-escapes486057
-Ref: table-sub-posix-92487411
-Ref: table-sub-proposed488754
-Ref: table-posix-sub490104
-Ref: table-gensub-escapes491650
-Ref: Gory Details-Footnote-1492857
-Ref: Gory Details-Footnote-2492908
-Node: I/O Functions493059
-Ref: I/O Functions-Footnote-1499714
-Node: Time Functions499861
-Ref: Time Functions-Footnote-1510753
-Ref: Time Functions-Footnote-2510821
-Ref: Time Functions-Footnote-3510979
-Ref: Time Functions-Footnote-4511090
-Ref: Time Functions-Footnote-5511202
-Ref: Time Functions-Footnote-6511429
-Node: Bitwise Functions511695
-Ref: table-bitwise-ops512253
-Ref: Bitwise Functions-Footnote-1516474
-Node: Type Functions516658
-Node: I18N Functions517128
-Node: User-defined518755
-Node: Definition Syntax519559
-Ref: Definition Syntax-Footnote-1524469
-Node: Function Example524538
-Node: Function Caveats527132
-Node: Calling A Function527553
-Node: Variable Scope528668
-Node: Pass By Value/Reference530643
-Node: Return Statement534083
-Node: Dynamic Typing537064
-Node: Indirect Calls537799
-Node: Internationalization547484
-Node: I18N and L10N548910
-Node: Explaining gettext549596
-Ref: Explaining gettext-Footnote-1554662
-Ref: Explaining gettext-Footnote-2554846
-Node: Programmer i18n555011
-Node: Translator i18n559211
-Node: String Extraction560004
-Ref: String Extraction-Footnote-1560965
-Node: Printf Ordering561051
-Ref: Printf Ordering-Footnote-1563835
-Node: I18N Portability563899
-Ref: I18N Portability-Footnote-1566348
-Node: I18N Example566411
-Ref: I18N Example-Footnote-1569046
-Node: Gawk I18N569118
-Node: Advanced Features569735
-Node: Nondecimal Data571248
-Node: Array Sorting572831
-Node: Controlling Array Traversal573528
-Node: Array Sorting Functions581766
-Ref: Array Sorting Functions-Footnote-1585440
-Ref: Array Sorting Functions-Footnote-2585533
-Node: Two-way I/O585727
-Ref: Two-way I/O-Footnote-1591159
-Node: TCP/IP Networking591229
-Node: Profiling594073
-Node: Library Functions601527
-Ref: Library Functions-Footnote-1604534
-Node: Library Names604705
-Ref: Library Names-Footnote-1608176
-Ref: Library Names-Footnote-2608396
-Node: General Functions608482
-Node: Strtonum Function609435
-Node: Assert Function612365
-Node: Round Function615691
-Node: Cliff Random Function617234
-Node: Ordinal Functions618250
-Ref: Ordinal Functions-Footnote-1621320
-Ref: Ordinal Functions-Footnote-2621572
-Node: Join Function621781
-Ref: Join Function-Footnote-1623552
-Node: Getlocaltime Function623752
-Node: Data File Management627467
-Node: Filetrans Function628099
-Node: Rewind Function632238
-Node: File Checking633625
-Node: Empty Files634719
-Node: Ignoring Assigns636949
-Node: Getopt Function638502
-Ref: Getopt Function-Footnote-1649806
-Node: Passwd Functions650009
-Ref: Passwd Functions-Footnote-1658984
-Node: Group Functions659072
-Node: Walking Arrays667156
-Node: Sample Programs668725
-Node: Running Examples669390
-Node: Clones670118
-Node: Cut Program671342
-Node: Egrep Program681187
-Ref: Egrep Program-Footnote-1688960
-Node: Id Program689070
-Node: Split Program692686
-Ref: Split Program-Footnote-1696205
-Node: Tee Program696333
-Node: Uniq Program699136
-Node: Wc Program706565
-Ref: Wc Program-Footnote-1710831
-Ref: Wc Program-Footnote-2711031
-Node: Miscellaneous Programs711123
-Node: Dupword Program712311
-Node: Alarm Program714342
-Node: Translate Program719091
-Ref: Translate Program-Footnote-1723478
-Ref: Translate Program-Footnote-2723706
-Node: Labels Program723840
-Ref: Labels Program-Footnote-1727211
-Node: Word Sorting727295
-Node: History Sorting731179
-Node: Extract Program733018
-Ref: Extract Program-Footnote-1740501
-Node: Simple Sed740629
-Node: Igawk Program743691
-Ref: Igawk Program-Footnote-1758848
-Ref: Igawk Program-Footnote-2759049
-Node: Anagram Program759187
-Node: Signature Program762255
-Node: Debugger763355
-Node: Debugging764321
-Node: Debugging Concepts764754
-Node: Debugging Terms766610
-Node: Awk Debugging769207
-Node: Sample Debugging Session770099
-Node: Debugger Invocation770619
-Node: Finding The Bug771948
-Node: List of Debugger Commands778436
-Node: Breakpoint Control779770
-Node: Debugger Execution Control783434
-Node: Viewing And Changing Data786794
-Node: Execution Stack790150
-Node: Debugger Info791617
-Node: Miscellaneous Debugger Commands795598
-Node: Readline Support801043
-Node: Limitations801874
-Node: Arbitrary Precision Arithmetic804126
-Ref: Arbitrary Precision Arithmetic-Footnote-1805768
-Node: General Arithmetic805916
-Node: Floating Point Issues807636
-Node: String Conversion Precision808517
-Ref: String Conversion Precision-Footnote-1810223
-Node: Unexpected Results810332
-Node: POSIX Floating Point Problems812485
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-Node: Integer Programming816348
-Node: Floating-point Programming818101
-Ref: Floating-point Programming-Footnote-1824410
-Node: Floating-point Representation824674
-Node: Floating-point Context825839
-Ref: table-ieee-formats826681
-Node: Rounding Mode828065
-Ref: table-rounding-modes828544
-Ref: Rounding Mode-Footnote-1831548
-Node: Gawk and MPFR831729
-Node: Arbitrary Precision Floats832971
-Ref: Arbitrary Precision Floats-Footnote-1835400
-Node: Setting Precision835711
-Node: Setting Rounding Mode838444
-Ref: table-gawk-rounding-modes838848
-Node: Floating-point Constants840028
-Node: Changing Precision841452
-Ref: Changing Precision-Footnote-1842852
-Node: Exact Arithmetic843026
-Node: Arbitrary Precision Integers846134
-Ref: Arbitrary Precision Integers-Footnote-1849134
-Node: Dynamic Extensions849281
-Node: Plugin License850199
-Node: Sample Library850813
-Node: Internal File Description851497
-Node: Internal File Ops855210
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-Node: Using Internal File Ops859913
-Node: Language History862289
-Node: V7/SVR3.1863811
-Node: SVR4866132
-Node: POSIX867574
-Node: BTL868582
-Node: POSIX/GNU869316
-Node: Common Extensions874851
-Node: Ranges and Locales875958
-Ref: Ranges and Locales-Footnote-1880576
-Ref: Ranges and Locales-Footnote-2880603
-Ref: Ranges and Locales-Footnote-3880863
-Node: Contributors881084
-Node: Installation885380
-Node: Gawk Distribution886274
-Node: Getting886758
-Node: Extracting887584
-Node: Distribution contents889276
-Node: Unix Installation894498
-Node: Quick Installation895115
-Node: Additional Configuration Options897077
-Node: Configuration Philosophy898554
-Node: Non-Unix Installation900896
-Node: PC Installation901354
-Node: PC Binary Installation902653
-Node: PC Compiling904501
-Node: PC Testing907445
-Node: PC Using908621
-Node: Cygwin912806
-Node: MSYS913806
-Node: VMS Installation914320
-Node: VMS Compilation914923
-Ref: VMS Compilation-Footnote-1915930
-Node: VMS Installation Details915988
-Node: VMS Running917623
-Node: VMS Old Gawk919230
-Node: Bugs919704
-Node: Other Versions923556
-Node: Notes928871
-Node: Compatibility Mode929458
-Node: Additions930241
-Node: Accessing The Source931168
-Node: Adding Code932594
-Node: New Ports938636
-Node: Derived Files942771
-Ref: Derived Files-Footnote-1948076
-Ref: Derived Files-Footnote-2948110
-Ref: Derived Files-Footnote-3948710
-Node: Future Extensions948808
-Node: Basic Concepts950295
-Node: Basic High Level950976
-Ref: Basic High Level-Footnote-1955011
-Node: Basic Data Typing955196
-Node: Glossary958551
-Node: Copying983527
-Node: GNU Free Documentation License1021084
-Node: Index1046221
+Ref: Auto-set-Footnote-1414993
+Node: ARGC and ARGV415198
+Node: Arrays419049
+Node: Array Basics420554
+Node: Array Intro421380
+Node: Reference to Elements425698
+Node: Assigning Elements427968
+Node: Array Example428459
+Node: Scanning an Array430191
+Node: Controlling Scanning432505
+Ref: Controlling Scanning-Footnote-1437438
+Node: Delete437754
+Ref: Delete-Footnote-1440519
+Node: Numeric Array Subscripts440576
+Node: Uninitialized Subscripts442759
+Node: Multi-dimensional444387
+Node: Multi-scanning447481
+Node: Arrays of Arrays449072
+Node: Functions453717
+Node: Built-in454539
+Node: Calling Built-in455617
+Node: Numeric Functions457605
+Ref: Numeric Functions-Footnote-1461437
+Ref: Numeric Functions-Footnote-2461794
+Ref: Numeric Functions-Footnote-3461842
+Node: String Functions462111
+Ref: String Functions-Footnote-1485608
+Ref: String Functions-Footnote-2485737
+Ref: String Functions-Footnote-3485985
+Node: Gory Details486072
+Ref: table-sub-escapes487751
+Ref: table-sub-posix-92489105
+Ref: table-sub-proposed490448
+Ref: table-posix-sub491798
+Ref: table-gensub-escapes493344
+Ref: Gory Details-Footnote-1494551
+Ref: Gory Details-Footnote-2494602
+Node: I/O Functions494753
+Ref: I/O Functions-Footnote-1501408
+Node: Time Functions501555
+Ref: Time Functions-Footnote-1512447
+Ref: Time Functions-Footnote-2512515
+Ref: Time Functions-Footnote-3512673
+Ref: Time Functions-Footnote-4512784
+Ref: Time Functions-Footnote-5512896
+Ref: Time Functions-Footnote-6513123
+Node: Bitwise Functions513389
+Ref: table-bitwise-ops513947
+Ref: Bitwise Functions-Footnote-1518168
+Node: Type Functions518352
+Node: I18N Functions518822
+Node: User-defined520449
+Node: Definition Syntax521253
+Ref: Definition Syntax-Footnote-1526163
+Node: Function Example526232
+Node: Function Caveats528826
+Node: Calling A Function529247
+Node: Variable Scope530362
+Node: Pass By Value/Reference532337
+Node: Return Statement535777
+Node: Dynamic Typing538758
+Node: Indirect Calls539493
+Node: Internationalization549178
+Node: I18N and L10N550604
+Node: Explaining gettext551290
+Ref: Explaining gettext-Footnote-1556356
+Ref: Explaining gettext-Footnote-2556540
+Node: Programmer i18n556705
+Node: Translator i18n560905
+Node: String Extraction561698
+Ref: String Extraction-Footnote-1562659
+Node: Printf Ordering562745
+Ref: Printf Ordering-Footnote-1565529
+Node: I18N Portability565593
+Ref: I18N Portability-Footnote-1568042
+Node: I18N Example568105
+Ref: I18N Example-Footnote-1570740
+Node: Gawk I18N570812
+Node: Advanced Features571429
+Node: Nondecimal Data572942
+Node: Array Sorting574525
+Node: Controlling Array Traversal575222
+Node: Array Sorting Functions583460
+Ref: Array Sorting Functions-Footnote-1587134
+Ref: Array Sorting Functions-Footnote-2587227
+Node: Two-way I/O587421
+Ref: Two-way I/O-Footnote-1592853
+Node: TCP/IP Networking592923
+Node: Profiling595767
+Node: Library Functions603221
+Ref: Library Functions-Footnote-1606228
+Node: Library Names606399
+Ref: Library Names-Footnote-1609870
+Ref: Library Names-Footnote-2610090
+Node: General Functions610176
+Node: Strtonum Function611129
+Node: Assert Function614059
+Node: Round Function617385
+Node: Cliff Random Function618928
+Node: Ordinal Functions619944
+Ref: Ordinal Functions-Footnote-1623014
+Ref: Ordinal Functions-Footnote-2623266
+Node: Join Function623475
+Ref: Join Function-Footnote-1625246
+Node: Getlocaltime Function625446
+Node: Data File Management629161
+Node: Filetrans Function629793
+Node: Rewind Function633932
+Node: File Checking635319
+Node: Empty Files636413
+Node: Ignoring Assigns638643
+Node: Getopt Function640196
+Ref: Getopt Function-Footnote-1651500
+Node: Passwd Functions651703
+Ref: Passwd Functions-Footnote-1660678
+Node: Group Functions660766
+Node: Walking Arrays668850
+Node: Sample Programs670419
+Node: Running Examples671084
+Node: Clones671812
+Node: Cut Program673036
+Node: Egrep Program682881
+Ref: Egrep Program-Footnote-1690654
+Node: Id Program690764
+Node: Split Program694380
+Ref: Split Program-Footnote-1697899
+Node: Tee Program698027
+Node: Uniq Program700830
+Node: Wc Program708259
+Ref: Wc Program-Footnote-1712525
+Ref: Wc Program-Footnote-2712725
+Node: Miscellaneous Programs712817
+Node: Dupword Program714005
+Node: Alarm Program716036
+Node: Translate Program720785
+Ref: Translate Program-Footnote-1725172
+Ref: Translate Program-Footnote-2725400
+Node: Labels Program725534
+Ref: Labels Program-Footnote-1728905
+Node: Word Sorting728989
+Node: History Sorting732873
+Node: Extract Program734712
+Ref: Extract Program-Footnote-1742195
+Node: Simple Sed742323
+Node: Igawk Program745385
+Ref: Igawk Program-Footnote-1760542
+Ref: Igawk Program-Footnote-2760743
+Node: Anagram Program760881
+Node: Signature Program763949
+Node: Debugger765049
+Node: Debugging766015
+Node: Debugging Concepts766448
+Node: Debugging Terms768304
+Node: Awk Debugging770901
+Node: Sample Debugging Session771793
+Node: Debugger Invocation772313
+Node: Finding The Bug773642
+Node: List of Debugger Commands780130
+Node: Breakpoint Control781464
+Node: Debugger Execution Control785128
+Node: Viewing And Changing Data788488
+Node: Execution Stack791844
+Node: Debugger Info793311
+Node: Miscellaneous Debugger Commands797292
+Node: Readline Support802737
+Node: Limitations803568
+Node: Arbitrary Precision Arithmetic805820
+Ref: Arbitrary Precision Arithmetic-Footnote-1807462
+Node: General Arithmetic807610
+Node: Floating Point Issues809330
+Node: String Conversion Precision810211
+Ref: String Conversion Precision-Footnote-1811917
+Node: Unexpected Results812026
+Node: POSIX Floating Point Problems814179
+Ref: POSIX Floating Point Problems-Footnote-1818004
+Node: Integer Programming818042
+Node: Floating-point Programming819795
+Ref: Floating-point Programming-Footnote-1826104
+Node: Floating-point Representation826368
+Node: Floating-point Context827533
+Ref: table-ieee-formats828375
+Node: Rounding Mode829759
+Ref: table-rounding-modes830238
+Ref: Rounding Mode-Footnote-1833242
+Node: Gawk and MPFR833423
+Node: Arbitrary Precision Floats834665
+Ref: Arbitrary Precision Floats-Footnote-1837094
+Node: Setting Precision837405
+Node: Setting Rounding Mode840138
+Ref: table-gawk-rounding-modes840542
+Node: Floating-point Constants841722
+Node: Changing Precision843146
+Ref: Changing Precision-Footnote-1844546
+Node: Exact Arithmetic844720
+Node: Arbitrary Precision Integers847828
+Ref: Arbitrary Precision Integers-Footnote-1850828
+Node: Dynamic Extensions850975
+Node: Plugin License851893
+Node: Sample Library852507
+Node: Internal File Description853191
+Node: Internal File Ops856904
+Ref: Internal File Ops-Footnote-1861467
+Node: Using Internal File Ops861607
+Node: Language History863983
+Node: V7/SVR3.1865505
+Node: SVR4867826
+Node: POSIX869268
+Node: BTL870276
+Node: POSIX/GNU871010
+Node: Common Extensions876545
+Node: Ranges and Locales877652
+Ref: Ranges and Locales-Footnote-1882270
+Ref: Ranges and Locales-Footnote-2882297
+Ref: Ranges and Locales-Footnote-3882557
+Node: Contributors882778
+Node: Installation887074
+Node: Gawk Distribution887968
+Node: Getting888452
+Node: Extracting889278
+Node: Distribution contents890970
+Node: Unix Installation896192
+Node: Quick Installation896809
+Node: Additional Configuration Options898771
+Node: Configuration Philosophy900248
+Node: Non-Unix Installation902590
+Node: PC Installation903048
+Node: PC Binary Installation904347
+Node: PC Compiling906195
+Node: PC Testing909139
+Node: PC Using910315
+Node: Cygwin914500
+Node: MSYS915500
+Node: VMS Installation916014
+Node: VMS Compilation916617
+Ref: VMS Compilation-Footnote-1917624
+Node: VMS Installation Details917682
+Node: VMS Running919317
+Node: VMS Old Gawk920924
+Node: Bugs921398
+Node: Other Versions925250
+Node: Notes930565
+Node: Compatibility Mode931152
+Node: Additions931935
+Node: Accessing The Source932862
+Node: Adding Code934288
+Node: New Ports940330
+Node: Derived Files944465
+Ref: Derived Files-Footnote-1949770
+Ref: Derived Files-Footnote-2949804
+Ref: Derived Files-Footnote-3950404
+Node: Future Extensions950502
+Node: Basic Concepts951989
+Node: Basic High Level952670
+Ref: Basic High Level-Footnote-1956705
+Node: Basic Data Typing956890
+Node: Glossary960245
+Node: Copying985221
+Node: GNU Free Documentation License1022778
+Node: Index1047915
End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index d9c2083..eb840ff 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -13015,6 +13015,14 @@ assigning a value to @code{NF} has the potential to
affect
to @code{NF} can be used to create or remove fields from the
current record. @xref{Changing Fields}.
address@hidden @code{FUNCTAB} array
address@hidden @command{gawk}, @code{FUNCTAB} array in
address@hidden differences in @command{awk} and @command{gawk}, @code{FUNCTAB}
variable
address@hidden FUNCTAB #
+An array whose indices are the names of all the user-defined
+or extension functions in the program.
address@hidden: The array values cannot currently be used.
+
@cindex @code{NR} variable
@item NR
The number of input records @command{awk} has processed since
@@ -13044,6 +13052,34 @@ This is
@code{"FIELDWIDTHS"} if field splitting with @code{FIELDWIDTHS} is in effect,
or @code{"FPAT"} if field matching with @code{FPAT} is in effect.
address@hidden PROCINFO["identifiers"]
+A subarray, indexed by the names of all identifiers used in the
+text of the AWK program. For each identifier, the value of the element is one
of the following:
+
address@hidden @code
address@hidden "array"
+The identifier is an array.
+
address@hidden "extension"
+The identifier is an extension function loaded via
address@hidden@@load}.
+
address@hidden "scalar"
+The identifier is a scalar.
+
address@hidden "untyped"
+The identifier is untyped (could be used as a scalar or array,
address@hidden doesn't know yet).
+
address@hidden "user"
+The identifier is a user-defined function.
address@hidden table
+
address@hidden
+The values indicate what @command{gawk} knows about the identifiers
+after it has finished parsing the program; they are @emph{not} updated
+while the program runs.
+
@item PROCINFO["gid"]
The value of the @code{getgid()} system call.
@@ -13142,6 +13178,30 @@ In other @command{awk} implementations,
or if @command{gawk} is in compatibility mode
(@pxref{Options}),
it is not special.
+
address@hidden @command{gawk}, @code{SYMTAB} array in
address@hidden @code{SYMTAB} array
address@hidden differences in @command{awk} and @command{gawk}, @code{SYMTAB}
variable
address@hidden SYMTAB #
+An array whose indices are the names of all currently defined
+global variables and arrays in the program. The array may be used
+for indirect access to read or write the value of a variable:
+
address@hidden
+foo = 5
+SYMTAB["foo"] = 4
+print foo # prints 4
address@hidden example
+
address@hidden
+The @code{isarray()} function (@pxref{Type Functions}) may be used to test
+if an element in @code{SYMTAB} is an array.
+
address@hidden NOTE
+In order to avoid severe time-travel paradoxes (as well as to avoid
+difficult implementation issues), neither @code{FUNCTAB} nor @code{SYMTAB}
+are available as elements within the @code{SYMTAB} array.
address@hidden quotation
@end table
@c ENDOFRANGE bvconi
@c ENDOFRANGE vbconi
diff --git a/symbol.c b/symbol.c
index 61408c4..670f831 100644
--- a/symbol.c
+++ b/symbol.c
@@ -107,6 +107,10 @@ lookup(const char *name)
for (i = 0; tables[i] != NULL; i++) {
if (tables[i]->table_size == 0)
continue;
+
+ if (do_posix && tables[i] == global_table)
+ continue;
+
n = in_array(tables[i], tmp);
if (n != NULL) {
unref(tmp);
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 4 +
doc/ChangeLog | 5 +
doc/awkcard.in | 24 ++-
doc/gawk.1 | 56 +++++-
doc/gawk.info | 598 ++++++++++++++++++++++++++++++-------------------------
doc/gawk.texi | 60 ++++++
symbol.c | 4 +
7 files changed, 471 insertions(+), 280 deletions(-)
hooks/post-receive
--
gawk
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- [gawk-diffs] [SCM] gawk branch, symtab, updated. 9e2703f7ca0b35129a94465654d0e18d14048dbc,
Arnold Robbins <=