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Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 1586 |
1 files changed, 867 insertions, 719 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index e01a794b..7f684a92 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -615,6 +615,7 @@ entitled "GNU Free Documentation License". * Unix Installation:: Installing `gawk' under various versions of Unix. * Quick Installation:: Compiling `gawk' under Unix. +* Shell Startup Files:: Shell convenience functions. * Additional Configuration Options:: Other compile-time options. * Configuration Philosophy:: How it's all supposed to work. * Non-Unix Installation:: Installation on Other Operating @@ -2631,10 +2632,8 @@ The following list describes options mandated by the POSIX standard: different file name for the output. No space is allowed between the `-o' and FILE, if FILE is supplied. - NOTE: Due to the way `gawk' has evolved, with this option - your program is still executed. This will change in the next - major release such that `gawk' will only pretty-print the - program and not run it. + NOTE: In the past, this option would also execute your + program. This is no longer the case. `-O' `--optimize' @@ -2929,6 +2928,9 @@ Since `.' is included at the beginning, `gawk' searches first in the current directory and then in `/usr/local/share/awk'. In practice, this means that you will rarely need to change the value of `AWKPATH'. + *Note Shell Startup Files::, for information on functions that help +to manipulate the `AWKPATH' variable. + `gawk' places the value of the search path that it used into `ENVIRON["AWKPATH"]'. This provides access to the actual search path value from within an `awk' program. @@ -2968,6 +2970,9 @@ empty value, `gawk' uses a default path; this is typically `/usr/local/lib/gawk', although it can vary depending upon how `gawk' was built. + *Note Shell Startup Files::, for information on functions that help +to manipulate the `AWKLIBPATH' variable. + `gawk' places the value of the search path that it used into `ENVIRON["AWKLIBPATH"]'. This provides access to the actual search path value from within an `awk' program. @@ -3039,13 +3044,6 @@ change. The variables are: supposed to be differences, but occasionally theory and practice don't coordinate with each other.) -`GAWK_NO_PP_RUN' - When `gawk' is invoked with the `--pretty-print' option, it will - not run the program if this environment variable exists. - - CAUTION: This variable will not survive into the next major - release. - `GAWK_STACKSIZE' This specifies the amount by which `gawk' should grow its internal evaluation stack, when needed. @@ -3437,15 +3435,18 @@ sequences apply to both string constants and regexp constants: `\xHH...' The hexadecimal value HH, where HH stands for a sequence of - hexadecimal digits (`0'-`9', and either `A'-`F' or `a'-`f'). Like - the same construct in ISO C, the escape sequence continues until - the first nonhexadecimal digit is seen. (c.e.) However, using - more than two hexadecimal digits produces undefined results. (The - `\x' escape sequence is not allowed in POSIX `awk'.) - - CAUTION: The next major release of `gawk' will change, such - that a maximum of two hexadecimal digits following the `\x' - will be used. + hexadecimal digits (`0'-`9', and either `A'-`F' or `a'-`f'). A + maximum of two digts are allowed after the `\x'. Any further + hexadecimal digits are treated as simple letters or numbers. + (c.e.) (The `\x' escape sequence is not allowed in POSIX awk.) + + CAUTION: In ISO C, the escape sequence continues until the + first nonhexadecimal digit is seen. For many years, `gawk' + would continue incorporating hexadecimal digits into the + value until a non-hexadecimal digit or the end of the string + was encountered. However, using more than two hexadecimal + digits produced undefined results. As of version *FIXME:* + 4.3.0, only two digits are processed. `\/' A literal slash (necessary for regexp constants only). This @@ -10313,10 +10314,18 @@ Options::), they are not special: An associative array containing the values of the environment. The array indices are the environment variable names; the elements are the values of the particular environment variables. For - example, `ENVIRON["HOME"]' might be `"/home/arnold"'. Changing - this array does not affect the environment passed on to any - programs that `awk' may spawn via redirection or the `system()' - function. (In a future version of `gawk', it may do so.) + example, `ENVIRON["HOME"]' might be `/home/arnold'. + + For POSIX `awk', changing this array does not affect the + environment passed on to any programs that `awk' may spawn via + redirection or the `system()' function. + + However, beginning with version 4.2, if not in POSIX compatibility + mode, `gawk' does update its own environment when `ENVIRON' is + changed, thus changing the environment seen by programs that it + creates. You should therefore be especially careful if you modify + `ENVIRON["PATH"]"', which is the search path for finding + executable programs. Some operating systems may not have environment variables. On such systems, the `ENVIRON' array is empty (except for @@ -11867,6 +11876,21 @@ brackets ([ ]): `cos(X)' Return the cosine of X, with X in radians. +`div(NUMERATOR, DENOMINATOR, RESULT)' + Perform integer division, similar to the standard C function of the + same name. First, truncate `numerator' and `denominator' towards + zero, creating integer values. Clear the `result' array, and then + set `result["quotient"]' to the result of `numerator / + denominator', truncated towards zero to an integer, and set + `result["remainder"]' to the result of `numerator % denominator', + truncated towards zero to an integer. This function is primarily + intended for use with arbitrary length integers; it avoids + creating MPFR arbitrary precision floating-point values (*note + Arbitrary Precision Integers::). + + This function is a `gawk' extension. It is not available in + compatibility mode (*note Options::). + `exp(X)' Return the exponential of X (`e ^ X') or report an error if X is out of range. The range of values X can have depends on your @@ -19856,8 +19880,7 @@ output. They are as follows: you typed when you wrote it. This is because `gawk' creates the profiled version by "pretty printing" its internal representation of the program. The advantage to this is that `gawk' can produce a -standard representation. The disadvantage is that all source-code -comments are lost. Also, things such as: +standard representation. Also, things such as: /foo/ @@ -19916,8 +19939,24 @@ by the `Ctrl-<\>' key. called this way, `gawk' "pretty prints" the program into `awkprof.out', without any execution counts. - NOTE: The `--pretty-print' option still runs your program. This - will change in the next major release. + NOTE: Once upon a time, the `--pretty-print' option would also run + your program. This is is no longer the case. + + There is a significant difference between the output created when +profiling, and that created when pretty-printing. Pretty-printed output +preserves the original comments that were in the program, although their +placement may not correspond exactly to their original locations in the +source code. + + However, as a deliberate design decision, profiling output _omits_ +the original program's comments. This allows you to focus on the +execution count data and helps you avoid the temptation to use the +profiler for pretty-printing. + + Additionally, pretty-printed output does not have the leading +indentation that the profiling output does. This makes it easy to +pretty-print your code once development is completed, and then use the +result as the final version of your program. File: gawk.info, Node: Advanced Features Summary, Prev: Profiling, Up: Advanced Features @@ -22404,6 +22443,62 @@ the following: gawk -M 'BEGIN { n = 13; print n % 2 }' + When dividing two arbitrary precision integers with either `/' or +`%', the result is typically an arbitrary precision floating point +value (unless the denominator evenly divides into the numerator). In +order to do integer division or remainder with arbitrary precision +integers, use the built-in `div()' function (*note Numeric Functions::). + + You can simulate the `div()' function in standard `awk' using this +user-defined function: + + # div --- do integer division + + function div(numerator, denominator, result) + { + split("", result) + + numerator = int(numerator) + denominator = int(denominator) + result["quotient"] = int(numerator / denominator) + result["remainder"] = int(numerator % denominator) + + return 0.0 + } + + The following example program, contributed by Katie Wasserman, uses +`div()' to compute the digits of pi to as many places as you choose to +set: + + # pi.awk --- compute the digits of pi + + BEGIN { + digits = 100000 + two = 2 * 10 ^ digits + pi = two + for (m = digits * 4; m > 0; --m) { + d = m * 2 + 1 + x = pi * m + div(x, d, result) + pi = result["quotient"] + pi = pi + two + } + print pi + } + + When asked about the algorithm used, Katie replied: + + It's not that well known but it's not that obscure either. It's + Euler's modification to Newton's method for calculating pi. Take + a look at lines (23) - (25) here: + `http://mathworld.wolfram.com/PiFormulas.htm'. + + The algorithm I wrote simply expands the multiply by 2 and works + from the innermost expression outwards. I used this to program HP + calculators because it's quite easy to modify for tiny memory + devices with smallish word sizes. See + `http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=899'. + ---------- Footnotes ---------- (1) Weisstein, Eric W. `Sylvester's Sequence'. From MathWorld--A @@ -26431,6 +26526,8 @@ the current version of `gawk'. - Ultrix + * Support for MirBSD was removed at `gawk' version 4.2. + File: gawk.info, Node: Feature History, Next: Common Extensions, Prev: POSIX/GNU, Up: Language History @@ -27333,7 +27430,9 @@ Various `.c', `.y', and `.h' files `doc/igawk.1' The `troff' source for a manual page describing the `igawk' - program presented in *note Igawk Program::. + program presented in *note Igawk Program::. (Since `gawk' can do + its own `@include' processing, neither `igawk' nor `igawk.1' are + installed.) `doc/Makefile.in' The input file used during the configuration process to generate @@ -27375,17 +27474,23 @@ Various `.c', `.y', and `.h' files contains a `Makefile.in' file, which `configure' uses to generate a `Makefile'. `Makefile.am' is used by GNU Automake to create `Makefile.in'. The library functions from *note Library - Functions::, and the `igawk' program from *note Igawk Program::, - are included as ready-to-use files in the `gawk' distribution. - They are installed as part of the installation process. The rest - of the programs in this Info file are available in appropriate - subdirectories of `awklib/eg'. + Functions::, are included as ready-to-use files in the `gawk' + distribution. They are installed as part of the installation + process. The rest of the programs in this Info file are available + in appropriate subdirectories of `awklib/eg'. `extension/*' The source code, manual pages, and infrastructure files for the sample extensions included with `gawk'. *Note Dynamic Extensions::, for more information. +`extras/*' + Additional non-essential files. Currently, this directory + contains some shell startup files to be installed in + `/etc/profile.d' to aid in manipulating the `AWKPATH' and + `AWKLIBPATH' environment variables. *Note Shell Startup Files::, + for more information. + `posix/*' Files needed for building `gawk' on POSIX-compliant systems. @@ -27416,11 +27521,12 @@ configure `gawk' for your system yourself. * Menu: * Quick Installation:: Compiling `gawk' under Unix. +* Shell Startup Files:: Shell convenience functions. * Additional Configuration Options:: Other compile-time options. * Configuration Philosophy:: How it's all supposed to work. -File: gawk.info, Node: Quick Installation, Next: Additional Configuration Options, Up: Unix Installation +File: gawk.info, Node: Quick Installation, Next: Shell Startup Files, Up: Unix Installation B.2.1 Compiling `gawk' for Unix-Like Systems -------------------------------------------- @@ -27476,9 +27582,43 @@ will be asked for your password, and you will have to have been set up previously as a user who is allowed to run the `sudo' command. -File: gawk.info, Node: Additional Configuration Options, Next: Configuration Philosophy, Prev: Quick Installation, Up: Unix Installation +File: gawk.info, Node: Shell Startup Files, Next: Additional Configuration Options, Prev: Quick Installation, Up: Unix Installation + +B.2.2 Shell Startup Files +------------------------- + +The distribution contains shell startup files `gawk.sh' and `gawk.csh' +containing functions to aid in manipulating the `AWKPATH' and +`AWKLIBPATH' environment variables. On a Fedora system, these files +should be installed in `/etc/profile.d'; on other platforms, the +appropriate location may be different. + +`gawkpath_default' + Reset the `AWKPATH' environment variable to its default value. + +`gawkpath_prepend' + Add the argument to the front of the `AWKPATH' environment + variable. + +`gawkpath_append' + Add the argument to the end of the `AWKPATH' environment variable. + +`gawklibpath_default' + Reset the `AWKLIBPATH' environment variable to its default value. + +`gawklibpath_prepend' + Add the argument to the front of the `AWKLIBPATH' environment + variable. + +`gawklibpath_append' + Add the argument to the end of the `AWKLIBPATH' environment + variable. + + + +File: gawk.info, Node: Additional Configuration Options, Next: Configuration Philosophy, Prev: Shell Startup Files, Up: Unix Installation -B.2.2 Additional Configuration Options +B.2.3 Additional Configuration Options -------------------------------------- There are several additional options you may use on the `configure' @@ -27520,7 +27660,7 @@ supplied by `configure'. File: gawk.info, Node: Configuration Philosophy, Prev: Additional Configuration Options, Up: Unix Installation -B.2.3 The Configuration Process +B.2.4 The Configuration Process ------------------------------- This minor node is of interest only if you know something about using @@ -31325,20 +31465,20 @@ Index * --include option: Options. (line 159) * --lint option <1>: Options. (line 185) * --lint option: Command Line. (line 20) -* --lint-old option: Options. (line 297) +* --lint-old option: Options. (line 295) * --load option: Options. (line 173) * --non-decimal-data option <1>: Nondecimal Data. (line 6) * --non-decimal-data option: Options. (line 211) * --non-decimal-data option, strtonum() function and: Nondecimal Data. (line 35) -* --optimize option: Options. (line 238) -* --posix option: Options. (line 256) -* --posix option, --traditional option and: Options. (line 275) +* --optimize option: Options. (line 236) +* --posix option: Options. (line 254) +* --posix option, --traditional option and: Options. (line 273) * --pretty-print option: Options. (line 225) * --profile option <1>: Profiling. (line 12) -* --profile option: Options. (line 244) -* --re-interval option: Options. (line 281) -* --sandbox option: Options. (line 288) +* --profile option: Options. (line 242) +* --re-interval option: Options. (line 279) +* --sandbox option: Options. (line 286) * --sandbox option, disabling system() function: I/O Functions. (line 128) * --sandbox option, input redirection with getline: Getline. (line 19) @@ -31346,9 +31486,9 @@ Index (line 6) * --source option: Options. (line 117) * --traditional option: Options. (line 81) -* --traditional option, --posix option and: Options. (line 275) +* --traditional option, --posix option and: Options. (line 273) * --use-lc-numeric option: Options. (line 220) -* --version option: Options. (line 302) +* --version option: Options. (line 300) * --with-whiny-user-strftime configuration option: Additional Configuration Options. (line 35) * -b option: Options. (line 68) @@ -31356,32 +31496,32 @@ Index * -c option: Options. (line 81) * -D option: Options. (line 108) * -d option: Options. (line 93) -* -e option: Options. (line 338) +* -e option: Options. (line 336) * -E option: Options. (line 125) * -e option: Options. (line 117) * -f option: Options. (line 25) * -F option: Options. (line 21) * -f option: Long. (line 12) -* -F option, -Ft sets FS to TAB: Options. (line 310) +* -F option, -Ft sets FS to TAB: Options. (line 308) * -F option, command-line: Command Line Field Separator. (line 6) -* -f option, multiple uses: Options. (line 315) +* -f option, multiple uses: Options. (line 313) * -g option: Options. (line 147) * -h option: Options. (line 154) * -i option: Options. (line 159) -* -L option: Options. (line 297) +* -L option: Options. (line 295) * -l option: Options. (line 173) * -M option: Options. (line 205) * -N option: Options. (line 220) * -n option: Options. (line 211) -* -O option: Options. (line 238) +* -O option: Options. (line 236) * -o option: Options. (line 225) -* -P option: Options. (line 256) -* -p option: Options. (line 244) -* -r option: Options. (line 281) -* -S option: Options. (line 288) +* -P option: Options. (line 254) +* -p option: Options. (line 242) +* -r option: Options. (line 279) +* -S option: Options. (line 286) * -v option: Assignment Options. (line 12) -* -V option: Options. (line 302) +* -V option: Options. (line 300) * -v option: Options. (line 32) * -W option: Options. (line 46) * . (period), regexp operator: Regexp Operators. (line 44) @@ -31443,10 +31583,10 @@ Index (line 8) * [] (square brackets), regexp operator: Regexp Operators. (line 56) * \ (backslash): Comments. (line 50) -* \ (backslash), \" escape sequence: Escape Sequences. (line 82) +* \ (backslash), \" escape sequence: Escape Sequences. (line 85) * \ (backslash), \' operator (gawk): GNU Regexp Operators. (line 56) -* \ (backslash), \/ escape sequence: Escape Sequences. (line 73) +* \ (backslash), \/ escape sequence: Escape Sequences. (line 76) * \ (backslash), \< operator (gawk): GNU Regexp Operators. (line 30) * \ (backslash), \> operator (gawk): GNU Regexp Operators. @@ -31486,7 +31626,7 @@ Index * \ (backslash), in bracket expressions: Bracket Expressions. (line 17) * \ (backslash), in escape sequences: Escape Sequences. (line 6) * \ (backslash), in escape sequences, POSIX and: Escape Sequences. - (line 105) + (line 108) * \ (backslash), in regexp constants: Computed Regexps. (line 29) * \ (backslash), in shell commands: Quoting. (line 48) * \ (backslash), regexp operator: Regexp Operators. (line 18) @@ -31654,7 +31794,7 @@ Index * awf (amazingly workable formatter) program: Glossary. (line 24) * awk debugging, enabling: Options. (line 108) * awk language, POSIX version: Assignment Ops. (line 137) -* awk profiling, enabling: Options. (line 244) +* awk profiling, enabling: Options. (line 242) * awk programs <1>: Two Rules. (line 6) * awk programs <2>: Executable Scripts. (line 6) * awk programs: Getting Started. (line 12) @@ -31712,10 +31852,10 @@ Index * awkvars.out file: Options. (line 93) * b debugger command (alias for break): Breakpoint Control. (line 11) * backslash (\): Comments. (line 50) -* backslash (\), \" escape sequence: Escape Sequences. (line 82) +* backslash (\), \" escape sequence: Escape Sequences. (line 85) * backslash (\), \' operator (gawk): GNU Regexp Operators. (line 56) -* backslash (\), \/ escape sequence: Escape Sequences. (line 73) +* backslash (\), \/ escape sequence: Escape Sequences. (line 76) * backslash (\), \< operator (gawk): GNU Regexp Operators. (line 30) * backslash (\), \> operator (gawk): GNU Regexp Operators. @@ -31755,7 +31895,7 @@ Index * backslash (\), in bracket expressions: Bracket Expressions. (line 17) * backslash (\), in escape sequences: Escape Sequences. (line 6) * backslash (\), in escape sequences, POSIX and: Escape Sequences. - (line 105) + (line 108) * backslash (\), in regexp constants: Computed Regexps. (line 29) * backslash (\), in shell commands: Quoting. (line 48) * backslash (\), regexp operator: Regexp Operators. (line 18) @@ -31861,7 +32001,7 @@ Index (line 67) * Brian Kernighan's awk <12>: GNU Regexp Operators. (line 82) -* Brian Kernighan's awk <13>: Escape Sequences. (line 109) +* Brian Kernighan's awk <13>: Escape Sequences. (line 112) * Brian Kernighan's awk: When. (line 21) * Brian Kernighan's awk, extensions: BTL. (line 6) * Brian Kernighan's awk, source code: Other Versions. (line 13) @@ -32055,7 +32195,7 @@ Index * cosine: Numeric Functions. (line 15) * counting: Wc Program. (line 6) * csh utility: Statements/Lines. (line 44) -* csh utility, POSIXLY_CORRECT environment variable: Options. (line 356) +* csh utility, POSIXLY_CORRECT environment variable: Options. (line 354) * csh utility, |& operator, comparison with: Two-way I/O. (line 25) * ctime() user-defined function: Function Example. (line 74) * currency symbols, localization: Explaining gettext. (line 104) @@ -32086,12 +32226,12 @@ Index * dark corner, CONVFMT variable: Strings And Numbers. (line 40) * dark corner, escape sequences: Other Arguments. (line 38) * dark corner, escape sequences, for metacharacters: Escape Sequences. - (line 140) + (line 143) * dark corner, exit statement: Exit Statement. (line 30) * dark corner, field separators: Full Line Fields. (line 22) -* dark corner, FILENAME variable <1>: Auto-set. (line 90) +* dark corner, FILENAME variable <1>: Auto-set. (line 98) * dark corner, FILENAME variable: Getline Notes. (line 19) -* dark corner, FNR/NR variables: Auto-set. (line 314) +* dark corner, FNR/NR variables: Auto-set. (line 322) * dark corner, format-control characters: Control Letters. (line 18) * dark corner, FS as null string: Single Character Fields. (line 20) @@ -32241,7 +32381,7 @@ Index * debugger, read commands from a file: Debugger Info. (line 96) * debugging awk programs: Debugger. (line 6) * debugging gawk, bug reports: Bugs. (line 9) -* decimal point character, locale specific: Options. (line 272) +* decimal point character, locale specific: Options. (line 270) * decrement operators: Increment Ops. (line 35) * default keyword: Switch Statement. (line 6) * Deifik, Scott <1>: Bugs. (line 70) @@ -32280,12 +32420,12 @@ Index (line 81) * differences in awk and gawk, command-line directories: Command-line directories. (line 6) -* differences in awk and gawk, ERRNO variable: Auto-set. (line 74) +* differences in awk and gawk, ERRNO variable: Auto-set. (line 82) * differences in awk and gawk, error messages: Special FD. (line 19) * differences in awk and gawk, FIELDWIDTHS variable: User-modified. (line 37) * differences in awk and gawk, FPAT variable: User-modified. (line 43) -* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 116) +* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 124) * differences in awk and gawk, function arguments (gawk): Calling Built-in. (line 16) * differences in awk and gawk, getline command: Getline. (line 19) @@ -32308,7 +32448,7 @@ Index (line 263) * differences in awk and gawk, print/printf statements: Format Modifiers. (line 13) -* differences in awk and gawk, PROCINFO array: Auto-set. (line 130) +* differences in awk and gawk, PROCINFO array: Auto-set. (line 138) * differences in awk and gawk, read timeouts: Read Timeout. (line 6) * differences in awk and gawk, record separators: awk split records. (line 125) @@ -32318,7 +32458,7 @@ Index (line 26) * differences in awk and gawk, RS/RT variables: gawk split records. (line 58) -* differences in awk and gawk, RT variable: Auto-set. (line 265) +* differences in awk and gawk, RT variable: Auto-set. (line 273) * differences in awk and gawk, single-character fields: Single Character Fields. (line 6) * differences in awk and gawk, split() function: String Functions. @@ -32326,7 +32466,7 @@ Index * differences in awk and gawk, strings: Scalar Constants. (line 20) * differences in awk and gawk, strings, storing: gawk split records. (line 77) -* differences in awk and gawk, SYMTAB variable: Auto-set. (line 269) +* differences in awk and gawk, SYMTAB variable: Auto-set. (line 277) * differences in awk and gawk, TEXTDOMAIN variable: User-modified. (line 151) * differences in awk and gawk, trunc-mod operation: Arithmetic Ops. @@ -32342,6 +32482,7 @@ Index * display debugger command: Viewing And Changing Data. (line 8) * display debugger options: Debugger Info. (line 57) +* div: Numeric Functions. (line 18) * division: Arithmetic Ops. (line 44) * do-while statement: Do Statement. (line 6) * do-while statement, use of regexps in: Regexp Usage. (line 19) @@ -32362,12 +32503,12 @@ Index * dump debugger command: Miscellaneous Debugger Commands. (line 9) * dupword.awk program: Dupword Program. (line 31) -* dynamic profiling: Profiling. (line 179) +* dynamic profiling: Profiling. (line 178) * dynamically loaded extensions: Dynamic Extensions. (line 6) * e debugger command (alias for enable): Breakpoint Control. (line 73) * EBCDIC: Ordinal Functions. (line 45) -* effective group ID of gawk user: Auto-set. (line 135) -* effective user ID of gawk user: Auto-set. (line 139) +* effective group ID of gawk user: Auto-set. (line 143) +* effective user ID of gawk user: Auto-set. (line 147) * egrep utility <1>: Egrep Program. (line 6) * egrep utility: Bracket Expressions. (line 26) * egrep.awk program: Egrep Program. (line 54) @@ -32422,13 +32563,13 @@ Index (line 11) * EREs (Extended Regular Expressions): Bracket Expressions. (line 26) * ERRNO variable <1>: TCP/IP Networking. (line 54) -* ERRNO variable: Auto-set. (line 74) +* ERRNO variable: Auto-set. (line 82) * ERRNO variable, with BEGINFILE pattern: BEGINFILE/ENDFILE. (line 26) * ERRNO variable, with close() function: Close Files And Pipes. (line 141) * ERRNO variable, with getline command: Getline. (line 19) * error handling: Special FD. (line 19) -* error handling, ERRNO variable and: Auto-set. (line 74) +* error handling, ERRNO variable and: Auto-set. (line 82) * error output: Special FD. (line 6) * escape processing, gsub()/gensub()/sub() functions: Gory Details. (line 6) @@ -32461,10 +32602,10 @@ Index * exit status, of VMS: VMS Running. (line 28) * exit the debugger: Miscellaneous Debugger Commands. (line 99) -* exp: Numeric Functions. (line 18) +* exp: Numeric Functions. (line 33) * expand utility: Very Simple. (line 72) * Expat XML parser library: gawkextlib. (line 31) -* exponent: Numeric Functions. (line 18) +* exponent: Numeric Functions. (line 33) * expressions: Expressions. (line 6) * expressions, as patterns: Expression Patterns. (line 6) * expressions, assignment: Assignment Ops. (line 6) @@ -32482,7 +32623,7 @@ Index (line 6) * extension API version: Extension Versioning. (line 6) -* extension API, version number: Auto-set. (line 232) +* extension API, version number: Auto-set. (line 240) * extension example: Extension Example. (line 6) * extension registration: Registration Functions. (line 6) @@ -32563,7 +32704,7 @@ Index * file names, distinguishing: Auto-set. (line 56) * file names, in compatibility mode: Special Caveats. (line 9) * file names, standard streams in gawk: Special FD. (line 48) -* FILENAME variable <1>: Auto-set. (line 90) +* FILENAME variable <1>: Auto-set. (line 98) * FILENAME variable: Reading Files. (line 6) * FILENAME variable, getline, setting with: Getline Notes. (line 19) * filenames, assignments as: Ignoring Assigns. (line 6) @@ -32631,9 +32772,9 @@ Index * flush buffered output: I/O Functions. (line 28) * fnmatch() extension function: Extension Sample Fnmatch. (line 12) -* FNR variable <1>: Auto-set. (line 100) +* FNR variable <1>: Auto-set. (line 108) * FNR variable: Records. (line 6) -* FNR variable, changing: Auto-set. (line 314) +* FNR variable, changing: Auto-set. (line 322) * for statement: For Statement. (line 6) * for statement, looping over arrays: Scanning an Array. (line 20) * fork() extension function: Extension Sample Fork. @@ -32670,7 +32811,7 @@ Index * FS variable, --field-separator option and: Options. (line 21) * FS variable, as null string: Single Character Fields. (line 20) -* FS variable, as TAB character: Options. (line 268) +* FS variable, as TAB character: Options. (line 266) * FS variable, changing value of: Field Separators. (line 35) * FS variable, running awk programs and: Cut Program. (line 63) * FS variable, setting from command line: Command Line Field Separator. @@ -32683,7 +32824,7 @@ Index * FSF (Free Software Foundation): Manual History. (line 6) * fts() extension function: Extension Sample File Functions. (line 61) -* FUNCTAB array: Auto-set. (line 116) +* FUNCTAB array: Auto-set. (line 124) * function calls: Function Calls. (line 6) * function calls, indirect: Indirect Calls. (line 6) * function calls, indirect, @-notation for: Indirect Calls. (line 47) @@ -32732,8 +32873,8 @@ Index (line 44) * G-d: Acknowledgments. (line 94) * Garfinkle, Scott: Contributors. (line 34) -* gawk program, dynamic profiling: Profiling. (line 179) -* gawk version: Auto-set. (line 207) +* gawk program, dynamic profiling: Profiling. (line 178) +* gawk version: Auto-set. (line 215) * gawk, ARGIND variable in: Other Arguments. (line 15) * gawk, awk and <1>: This Manual. (line 14) * gawk, awk and: Preface. (line 21) @@ -32751,13 +32892,13 @@ Index * gawk, distribution: Distribution contents. (line 6) * gawk, ERRNO variable in <1>: TCP/IP Networking. (line 54) -* gawk, ERRNO variable in <2>: Auto-set. (line 74) +* gawk, ERRNO variable in <2>: Auto-set. (line 82) * gawk, ERRNO variable in <3>: BEGINFILE/ENDFILE. (line 26) * gawk, ERRNO variable in <4>: Close Files And Pipes. (line 141) * gawk, ERRNO variable in: Getline. (line 19) -* gawk, escape sequences: Escape Sequences. (line 117) -* gawk, extensions, disabling: Options. (line 256) +* gawk, escape sequences: Escape Sequences. (line 120) +* gawk, extensions, disabling: Options. (line 254) * gawk, features, adding: Adding Code. (line 6) * gawk, features, advanced: Advanced Features. (line 6) * gawk, field separators and: User-modified. (line 71) @@ -32768,7 +32909,7 @@ Index * gawk, FPAT variable in <1>: User-modified. (line 43) * gawk, FPAT variable in: Splitting By Content. (line 26) -* gawk, FUNCTAB array in: Auto-set. (line 116) +* gawk, FUNCTAB array in: Auto-set. (line 124) * gawk, function arguments and: Calling Built-in. (line 16) * gawk, hexadecimal numbers and: Nondecimal-numbers. (line 42) * gawk, IGNORECASE variable in <1>: Array Sorting Functions. @@ -32800,7 +32941,7 @@ Index * gawk, predefined variables and: Built-in Variables. (line 14) * gawk, PROCINFO array in <1>: Two-way I/O. (line 99) * gawk, PROCINFO array in <2>: Time Functions. (line 47) -* gawk, PROCINFO array in: Auto-set. (line 130) +* gawk, PROCINFO array in: Auto-set. (line 138) * gawk, regexp constants and: Using Constant Regexps. (line 28) * gawk, regular expressions, case sensitivity: Case-sensitivity. @@ -32808,23 +32949,29 @@ 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 265) +* gawk, RT variable in <1>: Auto-set. (line 273) * gawk, RT variable in <2>: Multiple Line. (line 129) * gawk, RT variable in: awk split records. (line 125) * gawk, See Also awk: Preface. (line 34) * 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 269) +* gawk, SYMTAB array in: Auto-set. (line 277) * gawk, TEXTDOMAIN variable in: User-modified. (line 151) * gawk, timestamps: Time Functions. (line 6) * gawk, uses for: Preface. (line 34) -* gawk, versions of, information about, printing: Options. (line 302) +* gawk, versions of, information about, printing: Options. (line 300) * gawk, VMS version of: VMS Installation. (line 6) * gawk, word-boundary operator: GNU Regexp Operators. (line 63) * gawkextlib: gawkextlib. (line 6) * gawkextlib project: gawkextlib. (line 6) +* gawklibpath_append shell function: Shell Startup Files. (line 29) +* gawklibpath_default shell function: Shell Startup Files. (line 22) +* gawklibpath_prepend shell function: Shell Startup Files. (line 25) +* gawkpath_append shell function: Shell Startup Files. (line 19) +* gawkpath_default shell function: Shell Startup Files. (line 12) +* gawkpath_prepend shell function: Shell Startup Files. (line 15) * General Public License (GPL): Glossary. (line 305) * General Public License, See GPL: Manual History. (line 11) * generate time values: Time Functions. (line 25) @@ -32901,7 +33048,7 @@ Index * Grigera, Juan: Contributors. (line 57) * group database, reading: Group Functions. (line 6) * group file: Group Functions. (line 6) -* group ID of gawk user: Auto-set. (line 180) +* group ID of gawk user: Auto-set. (line 188) * groups, information about: Group Functions. (line 6) * gsub <1>: String Functions. (line 140) * gsub: Using Constant Regexps. @@ -32923,7 +33070,7 @@ Index * history expansion, in debugger: Readline Support. (line 6) * histsort.awk program: History Sorting. (line 25) * Hughes, Phil: Acknowledgments. (line 43) -* HUP signal, for dynamic profiling: Profiling. (line 211) +* HUP signal, for dynamic profiling: Profiling. (line 210) * hyphen (-), - operator: Precedence. (line 52) * hyphen (-), -- operator <1>: Precedence. (line 46) * hyphen (-), -- operator: Increment Ops. (line 48) @@ -33002,8 +33149,8 @@ Index * installation, VMS: VMS Installation. (line 6) * installing gawk: Installation. (line 6) * instruction tracing, in debugger: Debugger Info. (line 89) -* int: Numeric Functions. (line 23) -* INT signal (MS-Windows): Profiling. (line 214) +* int: Numeric Functions. (line 38) +* INT signal (MS-Windows): Profiling. (line 213) * integer array indices: Numeric Array Subscripts. (line 31) * integers, arbitrary precision: Arbitrary Precision Integers. @@ -33059,7 +33206,7 @@ Index * Kernighan, Brian <9>: Acknowledgments. (line 78) * Kernighan, Brian <10>: Conventions. (line 38) * Kernighan, Brian: History. (line 17) -* kill command, dynamic profiling: Profiling. (line 188) +* kill command, dynamic profiling: Profiling. (line 187) * Knights, jedi: Undocumented. (line 6) * Kwok, Conrad: Contributors. (line 34) * l debugger command (alias for list): Miscellaneous Debugger Commands. @@ -33131,7 +33278,7 @@ Index * lint checking, empty programs: Command Line. (line 16) * lint checking, issuing warnings: Options. (line 185) * lint checking, POSIXLY_CORRECT environment variable: Options. - (line 341) + (line 339) * lint checking, undefined functions: Pass By Value/Reference. (line 85) * LINT variable: User-modified. (line 88) @@ -33147,14 +33294,14 @@ Index * loading, extensions: Options. (line 173) * local variables, in a function: Variable Scope. (line 6) * locale categories: Explaining gettext. (line 81) -* locale decimal point character: Options. (line 272) +* locale decimal point character: Options. (line 270) * locale, definition of: Locales. (line 6) * localization: I18N and L10N. (line 6) * localization, See internationalization, localization: I18N and L10N. (line 6) -* log: Numeric Functions. (line 28) +* log: Numeric Functions. (line 43) * log files, timestamps in: Time Functions. (line 6) -* logarithm: Numeric Functions. (line 28) +* logarithm: Numeric Functions. (line 43) * logical false/true: Truth Values. (line 6) * logical operators, See Boolean expressions: Boolean Ops. (line 6) * login information: Passwd Functions. (line 16) @@ -33195,8 +33342,8 @@ Index * mawk utility <2>: Nextfile Statement. (line 47) * mawk utility <3>: Concatenation. (line 36) * mawk utility <4>: Getline/Pipe. (line 62) -* mawk utility: Escape Sequences. (line 117) -* maximum precision supported by MPFR library: Auto-set. (line 221) +* mawk utility: Escape Sequences. (line 120) +* maximum precision supported by MPFR library: Auto-set. (line 229) * McIlroy, Doug: Glossary. (line 149) * McPhee, Patrick: Contributors. (line 100) * message object files: Explaining gettext. (line 42) @@ -33208,8 +33355,8 @@ Index (line 54) * messages from extensions: Printing Messages. (line 6) * metacharacters in regular expressions: Regexp Operators. (line 6) -* metacharacters, escape sequences for: Escape Sequences. (line 136) -* minimum precision supported by MPFR library: Auto-set. (line 224) +* metacharacters, escape sequences for: Escape Sequences. (line 139) +* minimum precision supported by MPFR library: Auto-set. (line 232) * mktime: Time Functions. (line 25) * modifiers, in format specifiers: Format Modifiers. (line 6) * monetary information, localization: Explaining gettext. (line 104) @@ -33229,7 +33376,7 @@ Index * networks, programming: TCP/IP Networking. (line 6) * networks, support for: Special Network. (line 6) * newlines <1>: Boolean Ops. (line 69) -* newlines <2>: Options. (line 262) +* newlines <2>: Options. (line 260) * newlines: Statements/Lines. (line 6) * newlines, as field separators: Default Field Splitting. (line 6) @@ -33258,7 +33405,7 @@ Index (line 47) * nexti debugger command: Debugger Execution Control. (line 49) -* NF variable <1>: Auto-set. (line 105) +* NF variable <1>: Auto-set. (line 113) * NF variable: Fields. (line 33) * NF variable, decrementing: Changing Fields. (line 107) * ni debugger command (alias for nexti): Debugger Execution Control. @@ -33267,9 +33414,9 @@ Index * non-existent array elements: Reference to Elements. (line 23) * not Boolean-logic operator: Boolean Ops. (line 6) -* NR variable <1>: Auto-set. (line 125) +* NR variable <1>: Auto-set. (line 133) * NR variable: Records. (line 6) -* NR variable, changing: Auto-set. (line 314) +* NR variable, changing: Auto-set. (line 322) * null strings <1>: Basic Data Typing. (line 26) * null strings <2>: Truth Values. (line 6) * null strings <3>: Regexp Field Splitting. @@ -33383,7 +33530,7 @@ Index * p debugger command (alias for print): Viewing And Changing Data. (line 36) * Papadopoulos, Panos: Contributors. (line 128) -* parent process ID of gawk process: Auto-set. (line 189) +* parent process ID of gawk process: Auto-set. (line 197) * parentheses (), in a profile: Profiling. (line 146) * parentheses (), regexp operator: Regexp Operators. (line 81) * password file: Passwd Functions. (line 16) @@ -33425,14 +33572,14 @@ Index * plus sign (+), += operator: Assignment Ops. (line 82) * plus sign (+), regexp operator: Regexp Operators. (line 105) * pointers to functions: Indirect Calls. (line 6) -* portability: Escape Sequences. (line 100) +* portability: Escape Sequences. (line 103) * portability, #! (executable scripts): Executable Scripts. (line 33) * portability, ** operator and: Arithmetic Ops. (line 81) * portability, **= operator and: Assignment Ops. (line 143) * portability, ARGV variable: Executable Scripts. (line 59) * portability, backslash continuation and: Statements/Lines. (line 30) * portability, backslash in escape sequences: Escape Sequences. - (line 105) + (line 108) * portability, close() function and: Close Files And Pipes. (line 81) * portability, data files as single record: gawk split records. @@ -33450,7 +33597,7 @@ Index * portability, NF variable, decrementing: Changing Fields. (line 115) * portability, operators: Increment Ops. (line 60) * portability, operators, not in POSIX awk: Precedence. (line 98) -* portability, POSIXLY_CORRECT environment variable: Options. (line 361) +* portability, POSIXLY_CORRECT environment variable: Options. (line 359) * portability, substr() function: String Functions. (line 512) * portable object files <1>: Translator i18n. (line 6) * portable object files: Explaining gettext. (line 37) @@ -33471,7 +33618,7 @@ Index * POSIX awk, < operator and: Getline/File. (line 26) * POSIX awk, arithmetic operators and: Arithmetic Ops. (line 30) * POSIX awk, backslashes in string constants: Escape Sequences. - (line 105) + (line 108) * POSIX awk, BEGIN/END patterns: I/O And BEGIN/END. (line 16) * POSIX awk, bracket expressions and: Bracket Expressions. (line 26) * POSIX awk, bracket expressions and, character classes: Bracket Expressions. @@ -33498,11 +33645,11 @@ Index * POSIX awk, regular expressions and: Regexp Operators. (line 161) * POSIX awk, timestamps and: Time Functions. (line 6) * POSIX awk, | I/O operator and: Getline/Pipe. (line 55) -* POSIX mode: Options. (line 256) +* POSIX mode: Options. (line 254) * POSIX, awk and: Preface. (line 21) * POSIX, gawk extensions not included in: POSIX/GNU. (line 6) * POSIX, programs, implementing in awk: Clones. (line 6) -* POSIXLY_CORRECT environment variable: Options. (line 341) +* POSIXLY_CORRECT environment variable: Options. (line 339) * PREC variable: User-modified. (line 123) * precedence <1>: Precedence. (line 6) * precedence: Increment Ops. (line 60) @@ -33549,24 +33696,24 @@ Index * printing, unduplicated lines of text: Uniq Program. (line 6) * printing, user information: Id Program. (line 6) * private variables: Library Names. (line 11) -* process group idIDof gawk process: Auto-set. (line 183) -* process ID of gawk process: Auto-set. (line 186) +* process group idIDof gawk process: Auto-set. (line 191) +* process ID of gawk process: Auto-set. (line 194) * processes, two-way communications with: Two-way I/O. (line 6) * processing data: Basic High Level. (line 6) * PROCINFO array <1>: Passwd Functions. (line 6) * PROCINFO array <2>: Time Functions. (line 47) -* PROCINFO array: Auto-set. (line 130) +* PROCINFO array: Auto-set. (line 138) * PROCINFO array, and communications via ptys: Two-way I/O. (line 99) * PROCINFO array, and group membership: Group Functions. (line 6) * PROCINFO array, and user and group ID numbers: Id Program. (line 15) * PROCINFO array, testing the field splitting: Passwd Functions. (line 154) -* PROCINFO array, uses: Auto-set. (line 242) +* PROCINFO array, uses: Auto-set. (line 250) * PROCINFO, values of sorted_in: Controlling Scanning. (line 26) * profiling awk programs: Profiling. (line 6) -* profiling awk programs, dynamically: Profiling. (line 179) -* program identifiers: Auto-set. (line 148) +* profiling awk programs, dynamically: Profiling. (line 178) +* program identifiers: Auto-set. (line 156) * program, definition of: Getting Started. (line 21) * programming conventions, --non-decimal-data option: Nondecimal Data. (line 35) @@ -33601,7 +33748,7 @@ Index * QuikTrim Awk: Other Versions. (line 139) * quit debugger command: Miscellaneous Debugger Commands. (line 99) -* QUIT signal (MS-Windows): Profiling. (line 214) +* QUIT signal (MS-Windows): Profiling. (line 213) * quoting in gawk command lines: Long. (line 26) * quoting in gawk command lines, tricks for: Quoting. (line 91) * quoting, for small awk programs: Comments. (line 27) @@ -33610,12 +33757,12 @@ Index * Rakitzis, Byron: History Sorting. (line 25) * Ramey, Chet <1>: General Data Types. (line 6) * Ramey, Chet: Acknowledgments. (line 60) -* rand: Numeric Functions. (line 33) +* rand: Numeric Functions. (line 48) * random numbers, Cliff: Cliff Random Function. (line 6) * random numbers, rand()/srand() functions: Numeric Functions. - (line 33) -* random numbers, seed of: Numeric Functions. (line 63) + (line 48) +* random numbers, seed of: Numeric Functions. (line 78) * range expressions (regexps): Bracket Expressions. (line 6) * range patterns: Ranges. (line 6) * range patterns, line continuation and: Ranges. (line 65) @@ -33684,7 +33831,7 @@ Index (line 59) * regular expressions, gawk, command-line options: GNU Regexp Operators. (line 70) -* regular expressions, interval expressions and: Options. (line 281) +* regular expressions, interval expressions and: Options. (line 279) * regular expressions, leftmost longest match: Leftmost Longest. (line 6) * regular expressions, operators <1>: Regexp Operators. (line 6) @@ -33724,7 +33871,7 @@ Index * right shift: Bitwise Functions. (line 53) * right shift, bitwise: Bitwise Functions. (line 32) * Ritchie, Dennis: Basic Data Typing. (line 54) -* RLENGTH variable: Auto-set. (line 252) +* RLENGTH variable: Auto-set. (line 260) * RLENGTH variable, match() function and: String Functions. (line 228) * Robbins, Arnold <1>: Future Extensions. (line 6) * Robbins, Arnold <2>: Bugs. (line 70) @@ -33742,7 +33889,7 @@ Index * Robbins, Miriam <2>: Getline/Pipe. (line 39) * Robbins, Miriam: Acknowledgments. (line 94) * Rommel, Kai Uwe: Contributors. (line 42) -* round to nearest integer: Numeric Functions. (line 23) +* round to nearest integer: Numeric Functions. (line 38) * round() user-defined function: Round Function. (line 16) * rounding numbers: Round Function. (line 6) * ROUNDMODE variable: User-modified. (line 127) @@ -33750,9 +33897,9 @@ Index * RS variable: awk split records. (line 12) * RS variable, multiline records and: Multiple Line. (line 17) * rshift: Bitwise Functions. (line 53) -* RSTART variable: Auto-set. (line 258) +* RSTART variable: Auto-set. (line 266) * RSTART variable, match() function and: String Functions. (line 228) -* RT variable <1>: Auto-set. (line 265) +* RT variable <1>: Auto-set. (line 273) * RT variable <2>: Multiple Line. (line 129) * RT variable: awk split records. (line 125) * Rubin, Paul <1>: Contributors. (line 15) @@ -33765,14 +33912,14 @@ Index (line 68) * sample debugging session: Sample Debugging Session. (line 6) -* sandbox mode: Options. (line 288) +* sandbox mode: Options. (line 286) * save debugger options: Debugger Info. (line 84) * scalar or array: Type Functions. (line 11) * scalar values: Basic Data Typing. (line 13) * scanning arrays: Scanning an Array. (line 6) * scanning multidimensional arrays: Multiscanning. (line 11) * Schorr, Andrew <1>: Contributors. (line 133) -* Schorr, Andrew <2>: Auto-set. (line 297) +* Schorr, Andrew <2>: Auto-set. (line 305) * Schorr, Andrew: Acknowledgments. (line 60) * Schreiber, Bert: Acknowledgments. (line 38) * Schreiber, Rita: Acknowledgments. (line 38) @@ -33791,7 +33938,7 @@ Index * sed utility <1>: Glossary. (line 11) * sed utility <2>: Simple Sed. (line 6) * sed utility: Full Line Fields. (line 22) -* seeding random number generator: Numeric Functions. (line 63) +* seeding random number generator: Numeric Functions. (line 78) * semicolon (;), AWKPATH variable and: PC Using. (line 10) * semicolon (;), separating statements in actions <1>: Statements. (line 10) @@ -33852,14 +33999,14 @@ Index * sidebar, A Constant's Base Does Not Affect Its Value: Nondecimal-numbers. (line 64) * sidebar, Backslash Before Regular Characters: Escape Sequences. - (line 103) + (line 106) * sidebar, Changing FS Does Not Affect the Fields: Full Line Fields. (line 14) -* sidebar, Changing NR and FNR: Auto-set. (line 312) +* sidebar, Changing NR and FNR: Auto-set. (line 320) * sidebar, Controlling Output Buffering with system(): I/O Functions. (line 138) * sidebar, Escape Sequences for Metacharacters: Escape Sequences. - (line 134) + (line 137) * sidebar, FS and IGNORECASE: Field Splitting Summary. (line 38) * sidebar, Interactive Versus Noninteractive Buffering: I/O Functions. @@ -33881,19 +34028,19 @@ Index (line 57) * sidebar, Using close()'s Return Value: Close Files And Pipes. (line 131) -* SIGHUP signal, for dynamic profiling: Profiling. (line 211) -* SIGINT signal (MS-Windows): Profiling. (line 214) -* signals, HUP/SIGHUP, for profiling: Profiling. (line 211) -* signals, INT/SIGINT (MS-Windows): Profiling. (line 214) -* signals, QUIT/SIGQUIT (MS-Windows): Profiling. (line 214) -* signals, USR1/SIGUSR1, for profiling: Profiling. (line 188) +* SIGHUP signal, for dynamic profiling: Profiling. (line 210) +* SIGINT signal (MS-Windows): Profiling. (line 213) +* signals, HUP/SIGHUP, for profiling: Profiling. (line 210) +* signals, INT/SIGINT (MS-Windows): Profiling. (line 213) +* signals, QUIT/SIGQUIT (MS-Windows): Profiling. (line 213) +* signals, USR1/SIGUSR1, for profiling: Profiling. (line 187) * signature program: Signature Program. (line 6) -* SIGQUIT signal (MS-Windows): Profiling. (line 214) -* SIGUSR1 signal, for dynamic profiling: Profiling. (line 188) +* SIGQUIT signal (MS-Windows): Profiling. (line 213) +* SIGUSR1 signal, for dynamic profiling: Profiling. (line 187) * silent debugger command: Debugger Execution Control. (line 10) -* sin: Numeric Functions. (line 74) -* sine: Numeric Functions. (line 74) +* sin: Numeric Functions. (line 89) +* sine: Numeric Functions. (line 89) * single quote ('): One-shot. (line 15) * single quote (') in gawk command lines: Long. (line 35) * single quote ('), in shell commands: Quoting. (line 48) @@ -33943,10 +34090,10 @@ Index * sprintf() function, OFMT variable and: User-modified. (line 113) * sprintf() function, print/printf statements and: Round Function. (line 6) -* sqrt: Numeric Functions. (line 77) +* sqrt: Numeric Functions. (line 92) * square brackets ([]), regexp operator: Regexp Operators. (line 56) -* square root: Numeric Functions. (line 77) -* srand: Numeric Functions. (line 81) +* square root: Numeric Functions. (line 92) +* srand: Numeric Functions. (line 96) * stack frame: Debugging Terms. (line 10) * Stallman, Richard <1>: Glossary. (line 296) * Stallman, Richard <2>: Contributors. (line 23) @@ -34017,9 +34164,9 @@ Index * substr: String Functions. (line 481) * substring: String Functions. (line 481) * Sumner, Andrew: Other Versions. (line 68) -* supplementary groups of gawk process: Auto-set. (line 237) +* supplementary groups of gawk process: Auto-set. (line 245) * switch statement: Switch Statement. (line 6) -* SYMTAB array: Auto-set. (line 269) +* SYMTAB array: Auto-set. (line 277) * syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops. (line 148) * system: I/O Functions. (line 106) @@ -34086,7 +34233,7 @@ Index (line 37) * troubleshooting, awk uses FS not IFS: Field Separators. (line 30) * troubleshooting, backslash before nonspecial character: Escape Sequences. - (line 105) + (line 108) * troubleshooting, division: Arithmetic Ops. (line 44) * troubleshooting, fatal errors, field widths, specifying: Constant Size. (line 22) @@ -34142,7 +34289,7 @@ Index * uniq.awk program: Uniq Program. (line 65) * Unix: Glossary. (line 611) * Unix awk, backslashes in escape sequences: Escape Sequences. - (line 117) + (line 120) * Unix awk, close() function and: Close Files And Pipes. (line 133) * Unix awk, password files, field separators and: Command Line Field Separator. @@ -34162,7 +34309,7 @@ Index * user-modifiable variables: User-modified. (line 6) * users, information about, printing: Id Program. (line 6) * users, information about, retrieving: Passwd Functions. (line 16) -* USR1 signal, for dynamic profiling: Profiling. (line 188) +* USR1 signal, for dynamic profiling: Profiling. (line 187) * values, numeric: Basic Data Typing. (line 13) * values, string: Basic Data Typing. (line 13) * variable assignments and input files: Other Arguments. (line 26) @@ -34196,10 +34343,10 @@ Index * variables, uninitialized, as array subscripts: Uninitialized Subscripts. (line 6) * variables, user-defined: Variables. (line 6) -* version of gawk: Auto-set. (line 207) -* version of gawk extension API: Auto-set. (line 232) -* version of GNU MP library: Auto-set. (line 218) -* version of GNU MPFR library: Auto-set. (line 214) +* version of gawk: Auto-set. (line 215) +* version of gawk extension API: Auto-set. (line 240) +* version of GNU MP library: Auto-set. (line 226) +* version of GNU MPFR library: Auto-set. (line 222) * vertical bar (|): Regexp Operators. (line 70) * vertical bar (|), | operator (I/O) <1>: Precedence. (line 65) * vertical bar (|), | operator (I/O): Getline/Pipe. (line 9) @@ -34236,7 +34383,7 @@ Index * whitespace, as field separators: Default Field Splitting. (line 6) * whitespace, functions, calling: Calling Built-in. (line 10) -* whitespace, newlines as: Options. (line 262) +* whitespace, newlines as: Options. (line 260) * Williams, Kent: Contributors. (line 34) * Woehlke, Matthew: Contributors. (line 79) * Woods, John: Contributors. (line 27) @@ -34289,558 +34436,559 @@ Index Tag Table: Node: Top1204 -Node: Foreword342156 -Node: Foreword446598 -Node: Preface48031 -Ref: Preface-Footnote-150902 -Ref: Preface-Footnote-251009 -Ref: Preface-Footnote-351242 -Node: History51384 -Node: Names53730 -Ref: Names-Footnote-154824 -Node: This Manual54970 -Ref: This Manual-Footnote-161457 -Node: Conventions61557 -Node: Manual History63895 -Ref: Manual History-Footnote-166877 -Ref: Manual History-Footnote-266918 -Node: How To Contribute66992 -Node: Acknowledgments68121 -Node: Getting Started72925 -Node: Running gawk75358 -Node: One-shot76548 -Node: Read Terminal77796 -Node: Long79823 -Node: Executable Scripts81339 -Ref: Executable Scripts-Footnote-184128 -Node: Comments84231 -Node: Quoting86713 -Node: DOS Quoting92237 -Node: Sample Data Files92912 -Node: Very Simple95507 -Node: Two Rules100405 -Node: More Complex102291 -Node: Statements/Lines105153 -Ref: Statements/Lines-Footnote-1109608 -Node: Other Features109873 -Node: When110804 -Ref: When-Footnote-1112558 -Node: Intro Summary112623 -Node: Invoking Gawk113506 -Node: Command Line115020 -Node: Options115818 -Ref: Options-Footnote-1131749 -Node: Other Arguments131774 -Node: Naming Standard Input134722 -Node: Environment Variables135815 -Node: AWKPATH Variable136373 -Ref: AWKPATH Variable-Footnote-1139676 -Ref: AWKPATH Variable-Footnote-2139721 -Node: AWKLIBPATH Variable139981 -Node: Other Environment Variables141124 -Node: Exit Status144852 -Node: Include Files145528 -Node: Loading Shared Libraries149125 -Node: Obsolete150552 -Node: Undocumented151249 -Node: Invoking Summary151516 -Node: Regexp153180 -Node: Regexp Usage154634 -Node: Escape Sequences156671 -Node: Regexp Operators162682 -Ref: Regexp Operators-Footnote-1170108 -Ref: Regexp Operators-Footnote-2170255 -Node: Bracket Expressions170353 -Ref: table-char-classes172368 -Node: Leftmost Longest175292 -Node: Computed Regexps176594 -Node: GNU Regexp Operators179991 -Node: Case-sensitivity183664 -Ref: Case-sensitivity-Footnote-1186549 -Ref: Case-sensitivity-Footnote-2186784 -Node: Regexp Summary186892 -Node: Reading Files188359 -Node: Records190453 -Node: awk split records191186 -Node: gawk split records196101 -Ref: gawk split records-Footnote-1200641 -Node: Fields200678 -Ref: Fields-Footnote-1203454 -Node: Nonconstant Fields203540 -Ref: Nonconstant Fields-Footnote-1205783 -Node: Changing Fields205987 -Node: Field Separators211916 -Node: Default Field Splitting214621 -Node: Regexp Field Splitting215738 -Node: Single Character Fields219088 -Node: Command Line Field Separator220147 -Node: Full Line Fields223359 -Ref: Full Line Fields-Footnote-1224888 -Ref: Full Line Fields-Footnote-2224934 -Node: Field Splitting Summary225035 -Node: Constant Size227109 -Node: Splitting By Content231698 -Ref: Splitting By Content-Footnote-1235753 -Node: Multiple Line235793 -Ref: Multiple Line-Footnote-1241679 -Node: Getline241858 -Node: Plain Getline244070 -Node: Getline/Variable246710 -Node: Getline/File247858 -Node: Getline/Variable/File249242 -Ref: Getline/Variable/File-Footnote-1250845 -Node: Getline/Pipe250932 -Node: Getline/Variable/Pipe253615 -Node: Getline/Coprocess254746 -Node: Getline/Variable/Coprocess255998 -Node: Getline Notes256737 -Node: Getline Summary259529 -Ref: table-getline-variants259941 -Node: Read Timeout260770 -Ref: Read Timeout-Footnote-1264589 -Node: Command-line directories264647 -Node: Input Summary265552 -Node: Input Exercises268805 -Node: Printing269533 -Node: Print271310 -Node: Print Examples272767 -Node: Output Separators275546 -Node: OFMT277564 -Node: Printf278918 -Node: Basic Printf279703 -Node: Control Letters281272 -Node: Format Modifiers285256 -Node: Printf Examples291257 -Node: Redirection293743 -Node: Special FD300584 -Ref: Special FD-Footnote-1303744 -Node: Special Files303818 -Node: Other Inherited Files304435 -Node: Special Network305435 -Node: Special Caveats306297 -Node: Close Files And Pipes307248 -Ref: Close Files And Pipes-Footnote-1314430 -Ref: Close Files And Pipes-Footnote-2314578 -Node: Output Summary314728 -Node: Output Exercises315726 -Node: Expressions316406 -Node: Values317591 -Node: Constants318269 -Node: Scalar Constants318960 -Ref: Scalar Constants-Footnote-1319819 -Node: Nondecimal-numbers320069 -Node: Regexp Constants323087 -Node: Using Constant Regexps323612 -Node: Variables326755 -Node: Using Variables327410 -Node: Assignment Options329321 -Node: Conversion331196 -Node: Strings And Numbers331720 -Ref: Strings And Numbers-Footnote-1334785 -Node: Locale influences conversions334894 -Ref: table-locale-affects337641 -Node: All Operators338229 -Node: Arithmetic Ops338859 -Node: Concatenation341364 -Ref: Concatenation-Footnote-1344183 -Node: Assignment Ops344289 -Ref: table-assign-ops349268 -Node: Increment Ops350540 -Node: Truth Values and Conditions353978 -Node: Truth Values355063 -Node: Typing and Comparison356112 -Node: Variable Typing356922 -Node: Comparison Operators360575 -Ref: table-relational-ops360985 -Node: POSIX String Comparison364480 -Ref: POSIX String Comparison-Footnote-1365552 -Node: Boolean Ops365690 -Ref: Boolean Ops-Footnote-1370169 -Node: Conditional Exp370260 -Node: Function Calls371987 -Node: Precedence375867 -Node: Locales379528 -Node: Expressions Summary381160 -Node: Patterns and Actions383720 -Node: Pattern Overview384840 -Node: Regexp Patterns386519 -Node: Expression Patterns387062 -Node: Ranges390843 -Node: BEGIN/END393949 -Node: Using BEGIN/END394710 -Ref: Using BEGIN/END-Footnote-1397444 -Node: I/O And BEGIN/END397550 -Node: BEGINFILE/ENDFILE399864 -Node: Empty402765 -Node: Using Shell Variables403082 -Node: Action Overview405355 -Node: Statements407681 -Node: If Statement409529 -Node: While Statement411024 -Node: Do Statement413053 -Node: For Statement414197 -Node: Switch Statement417354 -Node: Break Statement419736 -Node: Continue Statement421777 -Node: Next Statement423604 -Node: Nextfile Statement425985 -Node: Exit Statement428615 -Node: Built-in Variables431018 -Node: User-modified432151 -Ref: User-modified-Footnote-1439832 -Node: Auto-set439894 -Ref: Auto-set-Footnote-1452929 -Ref: Auto-set-Footnote-2453134 -Node: ARGC and ARGV453190 -Node: Pattern Action Summary457408 -Node: Arrays459835 -Node: Array Basics461164 -Node: Array Intro462008 -Ref: figure-array-elements463972 -Ref: Array Intro-Footnote-1466498 -Node: Reference to Elements466626 -Node: Assigning Elements469078 -Node: Array Example469569 -Node: Scanning an Array471327 -Node: Controlling Scanning474343 -Ref: Controlling Scanning-Footnote-1479539 -Node: Numeric Array Subscripts479855 -Node: Uninitialized Subscripts482040 -Node: Delete483657 -Ref: Delete-Footnote-1486400 -Node: Multidimensional486457 -Node: Multiscanning489554 -Node: Arrays of Arrays491143 -Node: Arrays Summary495902 -Node: Functions497994 -Node: Built-in498867 -Node: Calling Built-in499945 -Node: Numeric Functions501936 -Ref: Numeric Functions-Footnote-1505953 -Ref: Numeric Functions-Footnote-2506310 -Ref: Numeric Functions-Footnote-3506358 -Node: String Functions506630 -Ref: String Functions-Footnote-1530105 -Ref: String Functions-Footnote-2530234 -Ref: String Functions-Footnote-3530482 -Node: Gory Details530569 -Ref: table-sub-escapes532350 -Ref: table-sub-proposed533870 -Ref: table-posix-sub535234 -Ref: table-gensub-escapes536770 -Ref: Gory Details-Footnote-1537602 -Node: I/O Functions537753 -Ref: I/O Functions-Footnote-1544971 -Node: Time Functions545118 -Ref: Time Functions-Footnote-1555606 -Ref: Time Functions-Footnote-2555674 -Ref: Time Functions-Footnote-3555832 -Ref: Time Functions-Footnote-4555943 -Ref: Time Functions-Footnote-5556055 -Ref: Time Functions-Footnote-6556282 -Node: Bitwise Functions556548 -Ref: table-bitwise-ops557110 -Ref: Bitwise Functions-Footnote-1561419 -Node: Type Functions561588 -Node: I18N Functions562739 -Node: User-defined564384 -Node: Definition Syntax565189 -Ref: Definition Syntax-Footnote-1570596 -Node: Function Example570667 -Ref: Function Example-Footnote-1573586 -Node: Function Caveats573608 -Node: Calling A Function574126 -Node: Variable Scope575084 -Node: Pass By Value/Reference578072 -Node: Return Statement581567 -Node: Dynamic Typing584548 -Node: Indirect Calls585477 -Ref: Indirect Calls-Footnote-1596779 -Node: Functions Summary596907 -Node: Library Functions599609 -Ref: Library Functions-Footnote-1603218 -Ref: Library Functions-Footnote-2603361 -Node: Library Names603532 -Ref: Library Names-Footnote-1606986 -Ref: Library Names-Footnote-2607209 -Node: General Functions607295 -Node: Strtonum Function608398 -Node: Assert Function611420 -Node: Round Function614744 -Node: Cliff Random Function616285 -Node: Ordinal Functions617301 -Ref: Ordinal Functions-Footnote-1620364 -Ref: Ordinal Functions-Footnote-2620616 -Node: Join Function620827 -Ref: Join Function-Footnote-1622596 -Node: Getlocaltime Function622796 -Node: Readfile Function626540 -Node: Shell Quoting628510 -Node: Data File Management629911 -Node: Filetrans Function630543 -Node: Rewind Function634599 -Node: File Checking635986 -Ref: File Checking-Footnote-1637318 -Node: Empty Files637519 -Node: Ignoring Assigns639498 -Node: Getopt Function641049 -Ref: Getopt Function-Footnote-1652511 -Node: Passwd Functions652711 -Ref: Passwd Functions-Footnote-1661560 -Node: Group Functions661648 -Ref: Group Functions-Footnote-1669542 -Node: Walking Arrays669755 -Node: Library Functions Summary671358 -Node: Library Exercises672759 -Node: Sample Programs674039 -Node: Running Examples674809 -Node: Clones675537 -Node: Cut Program676761 -Node: Egrep Program686480 -Ref: Egrep Program-Footnote-1693978 -Node: Id Program694088 -Node: Split Program697733 -Ref: Split Program-Footnote-1701181 -Node: Tee Program701309 -Node: Uniq Program704098 -Node: Wc Program711517 -Ref: Wc Program-Footnote-1715767 -Node: Miscellaneous Programs715861 -Node: Dupword Program717074 -Node: Alarm Program719105 -Node: Translate Program723909 -Ref: Translate Program-Footnote-1728474 -Node: Labels Program728744 -Ref: Labels Program-Footnote-1732095 -Node: Word Sorting732179 -Node: History Sorting736250 -Node: Extract Program738086 -Node: Simple Sed745611 -Node: Igawk Program748679 -Ref: Igawk Program-Footnote-1763003 -Ref: Igawk Program-Footnote-2763204 -Ref: Igawk Program-Footnote-3763326 -Node: Anagram Program763441 -Node: Signature Program766498 -Node: Programs Summary767745 -Node: Programs Exercises768938 -Ref: Programs Exercises-Footnote-1773069 -Node: Advanced Features773160 -Node: Nondecimal Data775108 -Node: Array Sorting776698 -Node: Controlling Array Traversal777395 -Ref: Controlling Array Traversal-Footnote-1785728 -Node: Array Sorting Functions785846 -Ref: Array Sorting Functions-Footnote-1789735 -Node: Two-way I/O789931 -Ref: Two-way I/O-Footnote-1794872 -Ref: Two-way I/O-Footnote-2795058 -Node: TCP/IP Networking795140 -Node: Profiling798013 -Node: Advanced Features Summary805560 -Node: Internationalization807493 -Node: I18N and L10N808973 -Node: Explaining gettext809659 -Ref: Explaining gettext-Footnote-1814684 -Ref: Explaining gettext-Footnote-2814868 -Node: Programmer i18n815033 -Ref: Programmer i18n-Footnote-1819899 -Node: Translator i18n819948 -Node: String Extraction820742 -Ref: String Extraction-Footnote-1821873 -Node: Printf Ordering821959 -Ref: Printf Ordering-Footnote-1824745 -Node: I18N Portability824809 -Ref: I18N Portability-Footnote-1827264 -Node: I18N Example827327 -Ref: I18N Example-Footnote-1830130 -Node: Gawk I18N830202 -Node: I18N Summary830840 -Node: Debugger832179 -Node: Debugging833201 -Node: Debugging Concepts833642 -Node: Debugging Terms835495 -Node: Awk Debugging838067 -Node: Sample Debugging Session838961 -Node: Debugger Invocation839481 -Node: Finding The Bug840865 -Node: List of Debugger Commands847340 -Node: Breakpoint Control848673 -Node: Debugger Execution Control852369 -Node: Viewing And Changing Data855733 -Node: Execution Stack859111 -Node: Debugger Info860748 -Node: Miscellaneous Debugger Commands864765 -Node: Readline Support869794 -Node: Limitations870686 -Node: Debugging Summary872800 -Node: Arbitrary Precision Arithmetic873968 -Node: Computer Arithmetic875384 -Ref: table-numeric-ranges878982 -Ref: Computer Arithmetic-Footnote-1879841 -Node: Math Definitions879898 -Ref: table-ieee-formats883186 -Ref: Math Definitions-Footnote-1883790 -Node: MPFR features883895 -Node: FP Math Caution885566 -Ref: FP Math Caution-Footnote-1886616 -Node: Inexactness of computations886985 -Node: Inexact representation887944 -Node: Comparing FP Values889301 -Node: Errors accumulate890383 -Node: Getting Accuracy891816 -Node: Try To Round894478 -Node: Setting precision895377 -Ref: table-predefined-precision-strings896061 -Node: Setting the rounding mode897850 -Ref: table-gawk-rounding-modes898214 -Ref: Setting the rounding mode-Footnote-1901669 -Node: Arbitrary Precision Integers901848 -Ref: Arbitrary Precision Integers-Footnote-1904834 -Node: POSIX Floating Point Problems904983 -Ref: POSIX Floating Point Problems-Footnote-1908856 -Node: Floating point summary908894 -Node: Dynamic Extensions911088 -Node: Extension Intro912640 -Node: Plugin License913906 -Node: Extension Mechanism Outline914703 -Ref: figure-load-extension915131 -Ref: figure-register-new-function916611 -Ref: figure-call-new-function917615 -Node: Extension API Description919601 -Node: Extension API Functions Introduction921051 -Node: General Data Types925875 -Ref: General Data Types-Footnote-1931614 -Node: Memory Allocation Functions931913 -Ref: Memory Allocation Functions-Footnote-1934752 -Node: Constructor Functions934848 -Node: Registration Functions936582 -Node: Extension Functions937267 -Node: Exit Callback Functions939564 -Node: Extension Version String940812 -Node: Input Parsers941477 -Node: Output Wrappers951354 -Node: Two-way processors955869 -Node: Printing Messages958073 -Ref: Printing Messages-Footnote-1959149 -Node: Updating `ERRNO'959301 -Node: Requesting Values960041 -Ref: table-value-types-returned960769 -Node: Accessing Parameters961726 -Node: Symbol Table Access962957 -Node: Symbol table by name963471 -Node: Symbol table by cookie965452 -Ref: Symbol table by cookie-Footnote-1969596 -Node: Cached values969659 -Ref: Cached values-Footnote-1973158 -Node: Array Manipulation973249 -Ref: Array Manipulation-Footnote-1974347 -Node: Array Data Types974384 -Ref: Array Data Types-Footnote-1977039 -Node: Array Functions977131 -Node: Flattening Arrays980985 -Node: Creating Arrays987877 -Node: Extension API Variables992646 -Node: Extension Versioning993282 -Node: Extension API Informational Variables995183 -Node: Extension API Boilerplate996271 -Node: Finding Extensions1000080 -Node: Extension Example1000640 -Node: Internal File Description1001412 -Node: Internal File Ops1005479 -Ref: Internal File Ops-Footnote-11017149 -Node: Using Internal File Ops1017289 -Ref: Using Internal File Ops-Footnote-11019672 -Node: Extension Samples1019945 -Node: Extension Sample File Functions1021471 -Node: Extension Sample Fnmatch1029109 -Node: Extension Sample Fork1030600 -Node: Extension Sample Inplace1031815 -Node: Extension Sample Ord1033490 -Node: Extension Sample Readdir1034326 -Ref: table-readdir-file-types1035202 -Node: Extension Sample Revout1036013 -Node: Extension Sample Rev2way1036603 -Node: Extension Sample Read write array1037343 -Node: Extension Sample Readfile1039283 -Node: Extension Sample Time1040378 -Node: Extension Sample API Tests1041727 -Node: gawkextlib1042218 -Node: Extension summary1044855 -Node: Extension Exercises1048532 -Node: Language History1049254 -Node: V7/SVR3.11050910 -Node: SVR41053091 -Node: POSIX1054536 -Node: BTL1055925 -Node: POSIX/GNU1056659 -Node: Feature History1062223 -Node: Common Extensions1075321 -Node: Ranges and Locales1076645 -Ref: Ranges and Locales-Footnote-11081263 -Ref: Ranges and Locales-Footnote-21081290 -Ref: Ranges and Locales-Footnote-31081524 -Node: Contributors1081745 -Node: History summary1087286 -Node: Installation1088656 -Node: Gawk Distribution1089602 -Node: Getting1090086 -Node: Extracting1090909 -Node: Distribution contents1092544 -Node: Unix Installation1098261 -Node: Quick Installation1098878 -Node: Additional Configuration Options1101302 -Node: Configuration Philosophy1103040 -Node: Non-Unix Installation1105409 -Node: PC Installation1105867 -Node: PC Binary Installation1107186 -Node: PC Compiling1109034 -Ref: PC Compiling-Footnote-11112055 -Node: PC Testing1112164 -Node: PC Using1113340 -Node: Cygwin1117455 -Node: MSYS1118278 -Node: VMS Installation1118778 -Node: VMS Compilation1119570 -Ref: VMS Compilation-Footnote-11120792 -Node: VMS Dynamic Extensions1120850 -Node: VMS Installation Details1122534 -Node: VMS Running1124786 -Node: VMS GNV1127622 -Node: VMS Old Gawk1128356 -Node: Bugs1128826 -Node: Other Versions1132709 -Node: Installation summary1139131 -Node: Notes1140187 -Node: Compatibility Mode1141052 -Node: Additions1141834 -Node: Accessing The Source1142759 -Node: Adding Code1144195 -Node: New Ports1150360 -Node: Derived Files1154842 -Ref: Derived Files-Footnote-11160317 -Ref: Derived Files-Footnote-21160351 -Ref: Derived Files-Footnote-31160947 -Node: Future Extensions1161061 -Node: Implementation Limitations1161667 -Node: Extension Design1162915 -Node: Old Extension Problems1164069 -Ref: Old Extension Problems-Footnote-11165586 -Node: Extension New Mechanism Goals1165643 -Ref: Extension New Mechanism Goals-Footnote-11169003 -Node: Extension Other Design Decisions1169192 -Node: Extension Future Growth1171300 -Node: Old Extension Mechanism1172136 -Node: Notes summary1173898 -Node: Basic Concepts1175084 -Node: Basic High Level1175765 -Ref: figure-general-flow1176037 -Ref: figure-process-flow1176636 -Ref: Basic High Level-Footnote-11179865 -Node: Basic Data Typing1180050 -Node: Glossary1183378 -Node: Copying1208536 -Node: GNU Free Documentation License1246092 -Node: Index1271228 +Node: Foreword342225 +Node: Foreword446667 +Node: Preface48100 +Ref: Preface-Footnote-150971 +Ref: Preface-Footnote-251078 +Ref: Preface-Footnote-351311 +Node: History51453 +Node: Names53799 +Ref: Names-Footnote-154893 +Node: This Manual55039 +Ref: This Manual-Footnote-161526 +Node: Conventions61626 +Node: Manual History63964 +Ref: Manual History-Footnote-166946 +Ref: Manual History-Footnote-266987 +Node: How To Contribute67061 +Node: Acknowledgments68190 +Node: Getting Started72994 +Node: Running gawk75427 +Node: One-shot76617 +Node: Read Terminal77865 +Node: Long79892 +Node: Executable Scripts81408 +Ref: Executable Scripts-Footnote-184197 +Node: Comments84300 +Node: Quoting86782 +Node: DOS Quoting92306 +Node: Sample Data Files92981 +Node: Very Simple95576 +Node: Two Rules100474 +Node: More Complex102360 +Node: Statements/Lines105222 +Ref: Statements/Lines-Footnote-1109677 +Node: Other Features109942 +Node: When110873 +Ref: When-Footnote-1112627 +Node: Intro Summary112692 +Node: Invoking Gawk113575 +Node: Command Line115089 +Node: Options115887 +Ref: Options-Footnote-1131689 +Node: Other Arguments131714 +Node: Naming Standard Input134662 +Node: Environment Variables135755 +Node: AWKPATH Variable136313 +Ref: AWKPATH Variable-Footnote-1139726 +Ref: AWKPATH Variable-Footnote-2139771 +Node: AWKLIBPATH Variable140031 +Node: Other Environment Variables141287 +Node: Exit Status144775 +Node: Include Files145451 +Node: Loading Shared Libraries149048 +Node: Obsolete150475 +Node: Undocumented151172 +Node: Invoking Summary151439 +Node: Regexp153103 +Node: Regexp Usage154557 +Node: Escape Sequences156594 +Node: Regexp Operators162835 +Ref: Regexp Operators-Footnote-1170261 +Ref: Regexp Operators-Footnote-2170408 +Node: Bracket Expressions170506 +Ref: table-char-classes172521 +Node: Leftmost Longest175445 +Node: Computed Regexps176747 +Node: GNU Regexp Operators180144 +Node: Case-sensitivity183817 +Ref: Case-sensitivity-Footnote-1186702 +Ref: Case-sensitivity-Footnote-2186937 +Node: Regexp Summary187045 +Node: Reading Files188512 +Node: Records190606 +Node: awk split records191339 +Node: gawk split records196254 +Ref: gawk split records-Footnote-1200794 +Node: Fields200831 +Ref: Fields-Footnote-1203607 +Node: Nonconstant Fields203693 +Ref: Nonconstant Fields-Footnote-1205936 +Node: Changing Fields206140 +Node: Field Separators212069 +Node: Default Field Splitting214774 +Node: Regexp Field Splitting215891 +Node: Single Character Fields219241 +Node: Command Line Field Separator220300 +Node: Full Line Fields223512 +Ref: Full Line Fields-Footnote-1225041 +Ref: Full Line Fields-Footnote-2225087 +Node: Field Splitting Summary225188 +Node: Constant Size227262 +Node: Splitting By Content231851 +Ref: Splitting By Content-Footnote-1235906 +Node: Multiple Line235946 +Ref: Multiple Line-Footnote-1241832 +Node: Getline242011 +Node: Plain Getline244223 +Node: Getline/Variable246863 +Node: Getline/File248011 +Node: Getline/Variable/File249395 +Ref: Getline/Variable/File-Footnote-1250998 +Node: Getline/Pipe251085 +Node: Getline/Variable/Pipe253768 +Node: Getline/Coprocess254899 +Node: Getline/Variable/Coprocess256151 +Node: Getline Notes256890 +Node: Getline Summary259682 +Ref: table-getline-variants260094 +Node: Read Timeout260923 +Ref: Read Timeout-Footnote-1264742 +Node: Command-line directories264800 +Node: Input Summary265705 +Node: Input Exercises268958 +Node: Printing269686 +Node: Print271463 +Node: Print Examples272920 +Node: Output Separators275699 +Node: OFMT277717 +Node: Printf279071 +Node: Basic Printf279856 +Node: Control Letters281425 +Node: Format Modifiers285409 +Node: Printf Examples291410 +Node: Redirection293896 +Node: Special FD300737 +Ref: Special FD-Footnote-1303897 +Node: Special Files303971 +Node: Other Inherited Files304588 +Node: Special Network305588 +Node: Special Caveats306450 +Node: Close Files And Pipes307401 +Ref: Close Files And Pipes-Footnote-1314583 +Ref: Close Files And Pipes-Footnote-2314731 +Node: Output Summary314881 +Node: Output Exercises315879 +Node: Expressions316559 +Node: Values317744 +Node: Constants318422 +Node: Scalar Constants319113 +Ref: Scalar Constants-Footnote-1319972 +Node: Nondecimal-numbers320222 +Node: Regexp Constants323240 +Node: Using Constant Regexps323765 +Node: Variables326908 +Node: Using Variables327563 +Node: Assignment Options329474 +Node: Conversion331349 +Node: Strings And Numbers331873 +Ref: Strings And Numbers-Footnote-1334938 +Node: Locale influences conversions335047 +Ref: table-locale-affects337794 +Node: All Operators338382 +Node: Arithmetic Ops339012 +Node: Concatenation341517 +Ref: Concatenation-Footnote-1344336 +Node: Assignment Ops344442 +Ref: table-assign-ops349421 +Node: Increment Ops350693 +Node: Truth Values and Conditions354131 +Node: Truth Values355216 +Node: Typing and Comparison356265 +Node: Variable Typing357075 +Node: Comparison Operators360728 +Ref: table-relational-ops361138 +Node: POSIX String Comparison364633 +Ref: POSIX String Comparison-Footnote-1365705 +Node: Boolean Ops365843 +Ref: Boolean Ops-Footnote-1370322 +Node: Conditional Exp370413 +Node: Function Calls372140 +Node: Precedence376020 +Node: Locales379681 +Node: Expressions Summary381313 +Node: Patterns and Actions383873 +Node: Pattern Overview384993 +Node: Regexp Patterns386672 +Node: Expression Patterns387215 +Node: Ranges390996 +Node: BEGIN/END394102 +Node: Using BEGIN/END394863 +Ref: Using BEGIN/END-Footnote-1397597 +Node: I/O And BEGIN/END397703 +Node: BEGINFILE/ENDFILE400017 +Node: Empty402918 +Node: Using Shell Variables403235 +Node: Action Overview405508 +Node: Statements407834 +Node: If Statement409682 +Node: While Statement411177 +Node: Do Statement413206 +Node: For Statement414350 +Node: Switch Statement417507 +Node: Break Statement419889 +Node: Continue Statement421930 +Node: Next Statement423757 +Node: Nextfile Statement426138 +Node: Exit Statement428768 +Node: Built-in Variables431171 +Node: User-modified432304 +Ref: User-modified-Footnote-1439985 +Node: Auto-set440047 +Ref: Auto-set-Footnote-1453419 +Ref: Auto-set-Footnote-2453624 +Node: ARGC and ARGV453680 +Node: Pattern Action Summary457898 +Node: Arrays460325 +Node: Array Basics461654 +Node: Array Intro462498 +Ref: figure-array-elements464462 +Ref: Array Intro-Footnote-1466988 +Node: Reference to Elements467116 +Node: Assigning Elements469568 +Node: Array Example470059 +Node: Scanning an Array471817 +Node: Controlling Scanning474833 +Ref: Controlling Scanning-Footnote-1480029 +Node: Numeric Array Subscripts480345 +Node: Uninitialized Subscripts482530 +Node: Delete484147 +Ref: Delete-Footnote-1486890 +Node: Multidimensional486947 +Node: Multiscanning490044 +Node: Arrays of Arrays491633 +Node: Arrays Summary496392 +Node: Functions498484 +Node: Built-in499357 +Node: Calling Built-in500435 +Node: Numeric Functions502426 +Ref: Numeric Functions-Footnote-1507245 +Ref: Numeric Functions-Footnote-2507602 +Ref: Numeric Functions-Footnote-3507650 +Node: String Functions507922 +Ref: String Functions-Footnote-1531397 +Ref: String Functions-Footnote-2531526 +Ref: String Functions-Footnote-3531774 +Node: Gory Details531861 +Ref: table-sub-escapes533642 +Ref: table-sub-proposed535162 +Ref: table-posix-sub536526 +Ref: table-gensub-escapes538062 +Ref: Gory Details-Footnote-1538894 +Node: I/O Functions539045 +Ref: I/O Functions-Footnote-1546263 +Node: Time Functions546410 +Ref: Time Functions-Footnote-1556898 +Ref: Time Functions-Footnote-2556966 +Ref: Time Functions-Footnote-3557124 +Ref: Time Functions-Footnote-4557235 +Ref: Time Functions-Footnote-5557347 +Ref: Time Functions-Footnote-6557574 +Node: Bitwise Functions557840 +Ref: table-bitwise-ops558402 +Ref: Bitwise Functions-Footnote-1562711 +Node: Type Functions562880 +Node: I18N Functions564031 +Node: User-defined565676 +Node: Definition Syntax566481 +Ref: Definition Syntax-Footnote-1571888 +Node: Function Example571959 +Ref: Function Example-Footnote-1574878 +Node: Function Caveats574900 +Node: Calling A Function575418 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Checking-Footnote-1638610 +Node: Empty Files638811 +Node: Ignoring Assigns640790 +Node: Getopt Function642341 +Ref: Getopt Function-Footnote-1653803 +Node: Passwd Functions654003 +Ref: Passwd Functions-Footnote-1662852 +Node: Group Functions662940 +Ref: Group Functions-Footnote-1670834 +Node: Walking Arrays671047 +Node: Library Functions Summary672650 +Node: Library Exercises674051 +Node: Sample Programs675331 +Node: Running Examples676101 +Node: Clones676829 +Node: Cut Program678053 +Node: Egrep Program687772 +Ref: Egrep Program-Footnote-1695270 +Node: Id Program695380 +Node: Split Program699025 +Ref: Split Program-Footnote-1702473 +Node: Tee Program702601 +Node: Uniq Program705390 +Node: Wc Program712809 +Ref: Wc Program-Footnote-1717059 +Node: Miscellaneous Programs717153 +Node: Dupword Program718366 +Node: Alarm Program720397 +Node: Translate Program725201 +Ref: Translate Program-Footnote-1729766 +Node: Labels Program730036 +Ref: Labels Program-Footnote-1733387 +Node: Word Sorting733471 +Node: History Sorting737542 +Node: Extract Program739378 +Node: Simple Sed746903 +Node: Igawk Program749971 +Ref: Igawk Program-Footnote-1764295 +Ref: Igawk Program-Footnote-2764496 +Ref: Igawk Program-Footnote-3764618 +Node: Anagram Program764733 +Node: Signature Program767790 +Node: Programs Summary769037 +Node: Programs Exercises770230 +Ref: Programs Exercises-Footnote-1774361 +Node: Advanced Features774452 +Node: Nondecimal Data776400 +Node: Array Sorting777990 +Node: Controlling Array Traversal778687 +Ref: Controlling Array Traversal-Footnote-1787020 +Node: Array Sorting Functions787138 +Ref: Array Sorting Functions-Footnote-1791027 +Node: Two-way I/O791223 +Ref: Two-way I/O-Footnote-1796164 +Ref: Two-way I/O-Footnote-2796350 +Node: TCP/IP Networking796432 +Node: Profiling799305 +Node: Advanced Features Summary807582 +Node: Internationalization809515 +Node: I18N and L10N810995 +Node: Explaining gettext811681 +Ref: Explaining gettext-Footnote-1816706 +Ref: Explaining gettext-Footnote-2816890 +Node: Programmer i18n817055 +Ref: Programmer i18n-Footnote-1821921 +Node: Translator i18n821970 +Node: String Extraction822764 +Ref: String Extraction-Footnote-1823895 +Node: Printf Ordering823981 +Ref: Printf Ordering-Footnote-1826767 +Node: I18N Portability826831 +Ref: I18N Portability-Footnote-1829286 +Node: I18N Example829349 +Ref: I18N Example-Footnote-1832152 +Node: Gawk I18N832224 +Node: I18N Summary832862 +Node: Debugger834201 +Node: Debugging835223 +Node: Debugging Concepts835664 +Node: Debugging Terms837517 +Node: Awk Debugging840089 +Node: Sample Debugging Session840983 +Node: Debugger Invocation841503 +Node: Finding The Bug842887 +Node: List of Debugger Commands849362 +Node: Breakpoint Control850695 +Node: Debugger Execution Control854391 +Node: Viewing And Changing Data857755 +Node: Execution Stack861133 +Node: Debugger Info862770 +Node: Miscellaneous Debugger Commands866787 +Node: Readline Support871816 +Node: Limitations872708 +Node: Debugging Summary874822 +Node: Arbitrary Precision Arithmetic875990 +Node: Computer Arithmetic877406 +Ref: table-numeric-ranges881004 +Ref: Computer Arithmetic-Footnote-1881863 +Node: Math Definitions881920 +Ref: table-ieee-formats885208 +Ref: Math Definitions-Footnote-1885812 +Node: MPFR features885917 +Node: FP Math Caution887588 +Ref: FP Math Caution-Footnote-1888638 +Node: Inexactness of computations889007 +Node: Inexact representation889966 +Node: Comparing FP Values891323 +Node: Errors accumulate892405 +Node: Getting Accuracy893838 +Node: Try To Round896500 +Node: Setting precision897399 +Ref: table-predefined-precision-strings898083 +Node: Setting the rounding mode899872 +Ref: table-gawk-rounding-modes900236 +Ref: Setting the rounding mode-Footnote-1903691 +Node: Arbitrary Precision Integers903870 +Ref: Arbitrary Precision Integers-Footnote-1908769 +Node: POSIX Floating Point Problems908918 +Ref: POSIX Floating Point Problems-Footnote-1912791 +Node: Floating point summary912829 +Node: 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Extension Sample Inplace1035750 +Node: Extension Sample Ord1037425 +Node: Extension Sample Readdir1038261 +Ref: table-readdir-file-types1039137 +Node: Extension Sample Revout1039948 +Node: Extension Sample Rev2way1040538 +Node: Extension Sample Read write array1041278 +Node: Extension Sample Readfile1043218 +Node: Extension Sample Time1044313 +Node: Extension Sample API Tests1045662 +Node: gawkextlib1046153 +Node: Extension summary1048790 +Node: Extension Exercises1052467 +Node: Language History1053189 +Node: V7/SVR3.11054845 +Node: SVR41057026 +Node: POSIX1058471 +Node: BTL1059860 +Node: POSIX/GNU1060594 +Node: Feature History1066218 +Node: Common Extensions1079316 +Node: Ranges and Locales1080640 +Ref: Ranges and Locales-Footnote-11085258 +Ref: Ranges and Locales-Footnote-21085285 +Ref: Ranges and Locales-Footnote-31085519 +Node: Contributors1085740 +Node: History summary1091281 +Node: Installation1092651 +Node: Gawk Distribution1093597 +Node: Getting1094081 +Node: Extracting1094904 +Node: Distribution contents1096539 +Node: Unix Installation1102604 +Node: Quick Installation1103287 +Node: Shell Startup Files1105698 +Node: Additional Configuration Options1106777 +Node: Configuration Philosophy1108516 +Node: Non-Unix Installation1110885 +Node: PC Installation1111343 +Node: PC Binary Installation1112662 +Node: PC Compiling1114510 +Ref: PC Compiling-Footnote-11117531 +Node: PC Testing1117640 +Node: PC Using1118816 +Node: Cygwin1122931 +Node: MSYS1123754 +Node: VMS Installation1124254 +Node: VMS Compilation1125046 +Ref: VMS Compilation-Footnote-11126268 +Node: VMS Dynamic Extensions1126326 +Node: VMS Installation Details1128010 +Node: VMS Running1130262 +Node: VMS GNV1133098 +Node: VMS Old Gawk1133832 +Node: Bugs1134302 +Node: Other Versions1138185 +Node: Installation summary1144607 +Node: Notes1145663 +Node: Compatibility Mode1146528 +Node: Additions1147310 +Node: Accessing The Source1148235 +Node: Adding Code1149671 +Node: New Ports1155836 +Node: Derived Files1160318 +Ref: Derived Files-Footnote-11165793 +Ref: Derived Files-Footnote-21165827 +Ref: Derived Files-Footnote-31166423 +Node: Future Extensions1166537 +Node: Implementation Limitations1167143 +Node: Extension Design1168391 +Node: Old Extension Problems1169545 +Ref: Old Extension Problems-Footnote-11171062 +Node: Extension New Mechanism Goals1171119 +Ref: Extension New Mechanism Goals-Footnote-11174479 +Node: Extension Other Design Decisions1174668 +Node: Extension Future Growth1176776 +Node: Old Extension Mechanism1177612 +Node: Notes summary1179374 +Node: Basic Concepts1180560 +Node: Basic High Level1181241 +Ref: figure-general-flow1181513 +Ref: figure-process-flow1182112 +Ref: Basic High Level-Footnote-11185341 +Node: Basic Data Typing1185526 +Node: Glossary1188854 +Node: Copying1214012 +Node: GNU Free Documentation License1251568 +Node: Index1276704 End Tag Table |