diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/gawk.info | 496 | ||||
| -rw-r--r-- | doc/gawk.texi | 12 |
2 files changed, 257 insertions, 251 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index e344c401..70fb686b 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -8967,13 +8967,16 @@ implementations, or if `gawk' is in compatibility mode (*note Options::), `nextfile' is not special. Upon execution of the `nextfile' statement, any `ENDFILE' rules are -executed, `FILENAME' is updated to the name of the next data file -listed on the command line, `FNR' is reset to one, `ARGIND' is -incremented, any `BEGINFILE' rules are executed, and processing starts -over with the first rule in the program. (`ARGIND' hasn't been -introduced yet. *Note Built-in Variables::.) If the `nextfile' -statement causes the end of the input to be reached, then the code in -any `END' rules is executed. *Note BEGIN/END::. +executed except in the case as mentioned below, `FILENAME' is updated +to the name of the next data file listed on the command line, `FNR' is +reset to one, `ARGIND' is incremented, any `BEGINFILE' rules are +executed, and processing starts over with the first rule in the program. +(`ARGIND' hasn't been introduced yet. *Note Built-in Variables::.) If +the `nextfile' statement causes the end of the input to be reached, +then the code in any `END' rules is executed. An exception to this is +when the `nextfile' is invoked during execution of any statement in an +`END' rule; In this case, it causes the program to stop immediately. +*Note BEGIN/END::. The `nextfile' statement is useful when there are many data files to process but it isn't necessary to process every record in every file. @@ -8983,7 +8986,8 @@ accomplishes this much more efficiently. In addition, `nextfile' is useful inside a `BEGINFILE' rule to skip over a file that would otherwise cause `gawk' to exit with a fatal -error. *Note BEGINFILE/ENDFILE::. +error. In this case, `ENDFILE' rules are not executed. *Note +BEGINFILE/ENDFILE::. While one might think that `close(FILENAME)' would accomplish the same as `nextfile', this isn't true. `close()' is reserved for closing @@ -26008,7 +26012,7 @@ Index * functions, user-defined, counts: Profiling. (line 132) * functions, user-defined, library of: Library Functions. (line 6) * functions, user-defined, next/nextfile statements and <1>: Nextfile Statement. - (line 40) + (line 44) * functions, user-defined, next/nextfile statements and: Next Statement. (line 45) * G-d: Acknowledgments. (line 81) @@ -26522,7 +26526,7 @@ Index * nextfile statement, BEGINFILE/ENDFILE patterns and: BEGINFILE/ENDFILE. (line 26) * nextfile statement, user-defined functions and: Nextfile Statement. - (line 40) + (line 44) * nexti debugger command: Dgawk Execution Control. (line 49) * NF variable <1>: Auto-set. (line 107) @@ -27622,241 +27626,241 @@ Node: Break Statement374114 Node: Continue Statement376104 Node: Next Statement377891 Node: Nextfile Statement380281 -Node: Exit Statement382578 -Node: Built-in Variables384994 -Node: User-modified386089 -Ref: User-modified-Footnote-1394115 -Node: Auto-set394177 -Ref: Auto-set-Footnote-1403468 -Node: ARGC and ARGV403673 -Node: Arrays407524 -Node: Array Basics409029 -Node: Array Intro409740 -Node: Reference to Elements414058 -Node: Assigning Elements416328 -Node: Array Example416819 -Node: Scanning an Array418551 -Node: Delete421217 -Ref: Delete-Footnote-1423652 -Node: Numeric Array Subscripts423709 -Node: Uninitialized Subscripts425892 -Node: Multi-dimensional427520 -Node: Multi-scanning430614 -Node: Arrays of Arrays432198 -Node: Functions436775 -Node: Built-in437597 -Node: Calling Built-in438675 -Node: Numeric Functions440663 -Ref: Numeric Functions-Footnote-1444428 -Ref: Numeric Functions-Footnote-2444785 -Ref: Numeric Functions-Footnote-3444833 -Node: String Functions445102 -Ref: String Functions-Footnote-1468599 -Ref: String Functions-Footnote-2468728 -Ref: String Functions-Footnote-3468976 -Node: Gory Details469063 -Ref: table-sub-escapes470742 -Ref: table-sub-posix-92472096 -Ref: table-sub-proposed473439 -Ref: table-posix-sub474789 -Ref: table-gensub-escapes476335 -Ref: Gory Details-Footnote-1477542 -Ref: Gory Details-Footnote-2477593 -Node: I/O Functions477744 -Ref: I/O Functions-Footnote-1484399 -Node: Time Functions484546 -Ref: Time Functions-Footnote-1495438 -Ref: Time Functions-Footnote-2495506 -Ref: Time Functions-Footnote-3495664 -Ref: Time Functions-Footnote-4495775 -Ref: Time Functions-Footnote-5495887 -Ref: Time Functions-Footnote-6496114 -Node: Bitwise Functions496380 -Ref: table-bitwise-ops496938 -Ref: Bitwise Functions-Footnote-1501098 -Node: Type Functions501282 -Node: I18N Functions501752 -Node: User-defined503379 -Node: Definition Syntax504183 -Ref: Definition Syntax-Footnote-1509093 -Node: Function Example509162 -Node: Function Caveats511756 -Node: Calling A Function512177 -Node: Variable Scope513292 -Node: Pass By Value/Reference515267 -Node: Return Statement518707 -Node: Dynamic Typing521688 -Node: Indirect Calls522423 -Node: Internationalization532108 -Node: I18N and L10N533534 -Node: Explaining gettext534220 -Ref: Explaining gettext-Footnote-1539286 -Ref: Explaining gettext-Footnote-2539470 -Node: Programmer i18n539635 -Node: Translator i18n543835 -Node: String Extraction544628 -Ref: String Extraction-Footnote-1545589 -Node: Printf Ordering545675 -Ref: Printf Ordering-Footnote-1548459 -Node: I18N Portability548523 -Ref: I18N Portability-Footnote-1550972 -Node: I18N Example551035 -Ref: I18N Example-Footnote-1553670 -Node: Gawk I18N553742 -Node: Advanced Features554359 -Node: Nondecimal Data555872 -Node: Array Sorting557455 -Node: Controlling Array Traversal558155 -Node: Controlling Scanning With A Function558902 -Node: Controlling Scanning566605 -Ref: Controlling Scanning-Footnote-1570406 -Node: Array Sorting Functions570722 -Ref: Array Sorting Functions-Footnote-1574238 -Ref: Array Sorting Functions-Footnote-2574331 -Node: Two-way I/O574525 -Ref: Two-way I/O-Footnote-1579957 -Node: TCP/IP Networking580027 -Node: Profiling582871 -Node: Library Functions590345 -Ref: Library Functions-Footnote-1593352 -Node: Library Names593523 -Ref: Library Names-Footnote-1596994 -Ref: Library Names-Footnote-2597214 -Node: General Functions597300 -Node: Strtonum Function598253 -Node: Assert Function601183 -Node: Round Function604509 -Node: Cliff Random Function606052 -Node: Ordinal Functions607068 -Ref: Ordinal Functions-Footnote-1610138 -Ref: Ordinal Functions-Footnote-2610390 -Node: Join Function610599 -Ref: Join Function-Footnote-1612370 -Node: Gettimeofday Function612570 -Node: Data File Management616285 -Node: Filetrans Function616917 -Node: Rewind Function621056 -Node: File Checking622443 -Node: Empty Files623537 -Node: Ignoring Assigns625767 -Node: Getopt Function627320 -Ref: Getopt Function-Footnote-1638624 -Node: Passwd Functions638827 -Ref: Passwd Functions-Footnote-1647802 -Node: Group Functions647890 -Node: Walking Arrays655974 -Node: Sample Programs657543 -Node: Running Examples658208 -Node: Clones658936 -Node: Cut Program660160 -Node: Egrep Program670005 -Ref: Egrep Program-Footnote-1677778 -Node: Id Program677888 -Node: Split Program681504 -Ref: Split Program-Footnote-1685023 -Node: Tee Program685151 -Node: Uniq Program687954 -Node: Wc Program695383 -Ref: Wc Program-Footnote-1699649 -Ref: Wc Program-Footnote-2699849 -Node: Miscellaneous Programs699941 -Node: Dupword Program701129 -Node: Alarm Program703160 -Node: Translate Program707909 -Ref: Translate Program-Footnote-1712296 -Ref: Translate Program-Footnote-2712524 -Node: Labels Program712658 -Ref: Labels Program-Footnote-1716029 -Node: Word Sorting716113 -Node: History Sorting719997 -Node: Extract Program721836 -Ref: Extract Program-Footnote-1729319 -Node: Simple Sed729447 -Node: Igawk Program732509 -Ref: Igawk Program-Footnote-1747666 -Ref: Igawk Program-Footnote-2747867 -Node: Anagram Program748005 -Node: Signature Program751073 -Node: Debugger752173 -Node: Debugging753084 -Node: Debugging Concepts753497 -Node: Debugging Terms755353 -Node: Awk Debugging757976 -Node: Sample dgawk session758868 -Node: dgawk invocation759360 -Node: Finding The Bug760542 -Node: List of Debugger Commands767028 -Node: Breakpoint Control768339 -Node: Dgawk Execution Control771975 -Node: Viewing And Changing Data775326 -Node: Dgawk Stack778663 -Node: Dgawk Info780123 -Node: Miscellaneous Dgawk Commands784071 -Node: Readline Support789499 -Node: Dgawk Limitations790337 -Node: Language History792526 -Node: V7/SVR3.1794038 -Node: SVR4796359 -Node: POSIX797801 -Node: BTL798809 -Node: POSIX/GNU799543 -Node: Common Extensions804694 -Node: Ranges and Locales805801 -Ref: Ranges and Locales-Footnote-1810408 -Node: Contributors810629 -Node: Installation814891 -Node: Gawk Distribution815785 -Node: Getting816269 -Node: Extracting817095 -Node: Distribution contents818787 -Node: Unix Installation824009 -Node: Quick Installation824626 -Node: Additional Configuration Options826588 -Node: Configuration Philosophy828065 -Node: Non-Unix Installation830407 -Node: PC Installation830865 -Node: PC Binary Installation832164 -Node: PC Compiling834012 -Node: PC Testing836956 -Node: PC Using838132 -Node: Cygwin842317 -Node: MSYS843317 -Node: VMS Installation843831 -Node: VMS Compilation844434 -Ref: VMS Compilation-Footnote-1845441 -Node: VMS Installation Details845499 -Node: VMS Running847134 -Node: VMS Old Gawk848741 -Node: Bugs849215 -Node: Other Versions853068 -Node: Notes858349 -Node: Compatibility Mode859041 -Node: Additions859824 -Node: Accessing The Source860636 -Node: Adding Code862061 -Node: New Ports868028 -Node: Dynamic Extensions872141 -Node: Internals873517 -Node: Plugin License882620 -Node: Sample Library883254 -Node: Internal File Description883940 -Node: Internal File Ops887655 -Ref: Internal File Ops-Footnote-1892436 -Node: Using Internal File Ops892576 -Node: Future Extensions894953 -Node: Basic Concepts897457 -Node: Basic High Level898214 -Ref: Basic High Level-Footnote-1902249 -Node: Basic Data Typing902434 -Node: Floating Point Issues906959 -Node: String Conversion Precision908042 -Ref: String Conversion Precision-Footnote-1909742 -Node: Unexpected Results909851 -Node: POSIX Floating Point Problems911677 -Ref: POSIX Floating Point Problems-Footnote-1915382 -Node: Glossary915420 -Node: Copying940396 -Node: GNU Free Documentation License977953 -Node: Index1003090 +Node: Exit Statement382826 +Node: Built-in Variables385242 +Node: User-modified386337 +Ref: User-modified-Footnote-1394363 +Node: Auto-set394425 +Ref: Auto-set-Footnote-1403716 +Node: ARGC and ARGV403921 +Node: Arrays407772 +Node: Array Basics409277 +Node: Array Intro409988 +Node: Reference to Elements414306 +Node: Assigning Elements416576 +Node: Array Example417067 +Node: Scanning an Array418799 +Node: Delete421465 +Ref: Delete-Footnote-1423900 +Node: Numeric Array Subscripts423957 +Node: Uninitialized Subscripts426140 +Node: Multi-dimensional427768 +Node: Multi-scanning430862 +Node: Arrays of Arrays432446 +Node: Functions437023 +Node: Built-in437845 +Node: Calling Built-in438923 +Node: Numeric Functions440911 +Ref: Numeric Functions-Footnote-1444676 +Ref: Numeric Functions-Footnote-2445033 +Ref: Numeric Functions-Footnote-3445081 +Node: String Functions445350 +Ref: String Functions-Footnote-1468847 +Ref: String Functions-Footnote-2468976 +Ref: String Functions-Footnote-3469224 +Node: Gory Details469311 +Ref: table-sub-escapes470990 +Ref: table-sub-posix-92472344 +Ref: table-sub-proposed473687 +Ref: table-posix-sub475037 +Ref: table-gensub-escapes476583 +Ref: Gory Details-Footnote-1477790 +Ref: Gory Details-Footnote-2477841 +Node: I/O Functions477992 +Ref: I/O Functions-Footnote-1484647 +Node: Time Functions484794 +Ref: Time Functions-Footnote-1495686 +Ref: Time Functions-Footnote-2495754 +Ref: Time Functions-Footnote-3495912 +Ref: Time Functions-Footnote-4496023 +Ref: Time Functions-Footnote-5496135 +Ref: Time Functions-Footnote-6496362 +Node: Bitwise Functions496628 +Ref: table-bitwise-ops497186 +Ref: Bitwise Functions-Footnote-1501346 +Node: Type Functions501530 +Node: I18N Functions502000 +Node: User-defined503627 +Node: Definition Syntax504431 +Ref: Definition Syntax-Footnote-1509341 +Node: Function Example509410 +Node: Function Caveats512004 +Node: Calling A Function512425 +Node: Variable Scope513540 +Node: Pass By Value/Reference515515 +Node: Return Statement518955 +Node: Dynamic Typing521936 +Node: Indirect Calls522671 +Node: Internationalization532356 +Node: I18N and L10N533782 +Node: Explaining gettext534468 +Ref: Explaining gettext-Footnote-1539534 +Ref: Explaining gettext-Footnote-2539718 +Node: Programmer i18n539883 +Node: Translator i18n544083 +Node: String Extraction544876 +Ref: String Extraction-Footnote-1545837 +Node: Printf Ordering545923 +Ref: Printf Ordering-Footnote-1548707 +Node: I18N Portability548771 +Ref: I18N Portability-Footnote-1551220 +Node: I18N Example551283 +Ref: I18N Example-Footnote-1553918 +Node: Gawk I18N553990 +Node: Advanced Features554607 +Node: Nondecimal Data556120 +Node: Array Sorting557703 +Node: Controlling Array Traversal558403 +Node: Controlling Scanning With A Function559150 +Node: Controlling Scanning566853 +Ref: Controlling Scanning-Footnote-1570654 +Node: Array Sorting Functions570970 +Ref: Array Sorting Functions-Footnote-1574486 +Ref: Array Sorting Functions-Footnote-2574579 +Node: Two-way I/O574773 +Ref: Two-way I/O-Footnote-1580205 +Node: TCP/IP Networking580275 +Node: Profiling583119 +Node: Library Functions590593 +Ref: Library Functions-Footnote-1593600 +Node: Library Names593771 +Ref: Library Names-Footnote-1597242 +Ref: Library Names-Footnote-2597462 +Node: General Functions597548 +Node: Strtonum Function598501 +Node: Assert Function601431 +Node: Round Function604757 +Node: Cliff Random Function606300 +Node: Ordinal Functions607316 +Ref: Ordinal Functions-Footnote-1610386 +Ref: Ordinal Functions-Footnote-2610638 +Node: Join Function610847 +Ref: Join Function-Footnote-1612618 +Node: Gettimeofday Function612818 +Node: Data File Management616533 +Node: Filetrans Function617165 +Node: Rewind Function621304 +Node: File Checking622691 +Node: Empty Files623785 +Node: Ignoring Assigns626015 +Node: Getopt Function627568 +Ref: Getopt Function-Footnote-1638872 +Node: Passwd Functions639075 +Ref: Passwd Functions-Footnote-1648050 +Node: Group Functions648138 +Node: Walking Arrays656222 +Node: Sample Programs657791 +Node: Running Examples658456 +Node: Clones659184 +Node: Cut Program660408 +Node: Egrep Program670253 +Ref: Egrep Program-Footnote-1678026 +Node: Id Program678136 +Node: Split Program681752 +Ref: Split Program-Footnote-1685271 +Node: Tee Program685399 +Node: Uniq Program688202 +Node: Wc Program695631 +Ref: Wc Program-Footnote-1699897 +Ref: Wc Program-Footnote-2700097 +Node: Miscellaneous Programs700189 +Node: Dupword Program701377 +Node: Alarm Program703408 +Node: Translate Program708157 +Ref: Translate Program-Footnote-1712544 +Ref: Translate Program-Footnote-2712772 +Node: Labels Program712906 +Ref: Labels Program-Footnote-1716277 +Node: Word Sorting716361 +Node: History Sorting720245 +Node: Extract Program722084 +Ref: Extract Program-Footnote-1729567 +Node: Simple Sed729695 +Node: Igawk Program732757 +Ref: Igawk Program-Footnote-1747914 +Ref: Igawk Program-Footnote-2748115 +Node: Anagram Program748253 +Node: Signature Program751321 +Node: Debugger752421 +Node: Debugging753332 +Node: Debugging Concepts753745 +Node: Debugging Terms755601 +Node: Awk Debugging758224 +Node: Sample dgawk session759116 +Node: dgawk invocation759608 +Node: Finding The Bug760790 +Node: List of Debugger Commands767276 +Node: Breakpoint Control768587 +Node: Dgawk Execution Control772223 +Node: Viewing And Changing Data775574 +Node: Dgawk Stack778911 +Node: Dgawk Info780371 +Node: Miscellaneous Dgawk Commands784319 +Node: Readline Support789747 +Node: Dgawk Limitations790585 +Node: Language History792774 +Node: V7/SVR3.1794286 +Node: SVR4796607 +Node: POSIX798049 +Node: BTL799057 +Node: POSIX/GNU799791 +Node: Common Extensions804942 +Node: Ranges and Locales806049 +Ref: Ranges and Locales-Footnote-1810656 +Node: Contributors810877 +Node: Installation815139 +Node: Gawk Distribution816033 +Node: Getting816517 +Node: Extracting817343 +Node: Distribution contents819035 +Node: Unix Installation824257 +Node: Quick Installation824874 +Node: Additional Configuration Options826836 +Node: Configuration Philosophy828313 +Node: Non-Unix Installation830655 +Node: PC Installation831113 +Node: PC Binary Installation832412 +Node: PC Compiling834260 +Node: PC Testing837204 +Node: PC Using838380 +Node: Cygwin842565 +Node: MSYS843565 +Node: VMS Installation844079 +Node: VMS Compilation844682 +Ref: VMS Compilation-Footnote-1845689 +Node: VMS Installation Details845747 +Node: VMS Running847382 +Node: VMS Old Gawk848989 +Node: Bugs849463 +Node: Other Versions853316 +Node: Notes858597 +Node: Compatibility Mode859289 +Node: Additions860072 +Node: Accessing The Source860884 +Node: Adding Code862309 +Node: New Ports868276 +Node: Dynamic Extensions872389 +Node: Internals873765 +Node: Plugin License882868 +Node: Sample Library883502 +Node: Internal File Description884188 +Node: Internal File Ops887903 +Ref: Internal File Ops-Footnote-1892684 +Node: Using Internal File Ops892824 +Node: Future Extensions895201 +Node: Basic Concepts897705 +Node: Basic High Level898462 +Ref: Basic High Level-Footnote-1902497 +Node: Basic Data Typing902682 +Node: Floating Point Issues907207 +Node: String Conversion Precision908290 +Ref: String Conversion Precision-Footnote-1909990 +Node: Unexpected Results910099 +Node: POSIX Floating Point Problems911925 +Ref: POSIX Floating Point Problems-Footnote-1915630 +Node: Glossary915668 +Node: Copying940644 +Node: GNU Free Documentation License978201 +Node: Index1003338 End Tag Table diff --git a/doc/gawk.texi b/doc/gawk.texi index 87d8ff2e..9dbd45c0 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -12161,16 +12161,17 @@ or if @command{gawk} is in compatibility mode @code{nextfile} is not special. Upon execution of the @code{nextfile} statement, -any @code{ENDFILE} rules are executed, -@code{FILENAME} is +any @code{ENDFILE} rules are executed except in the case as +mentioned below, @code{FILENAME} is updated to the name of the next @value{DF} listed on the command line, @code{FNR} is reset to one, @code{ARGIND} is incremented, any @code{BEGINFILE} rules are executed, and processing starts over with the first rule in the program. (@code{ARGIND} hasn't been introduced yet. @xref{Built-in Variables}.) If the @code{nextfile} statement causes the end of the input to be reached, -then the code in any @code{END} rules is executed. -@xref{BEGIN/END}. +then the code in any @code{END} rules is executed. An exception to this is +when the @code{nextfile} is invoked during execution of any statement in an +@code{END} rule; In this case, it causes the program to stop immediately. @xref{BEGIN/END}. The @code{nextfile} statement is useful when there are many @value{DF}s to process but it isn't necessary to process every record in every file. @@ -12180,7 +12181,8 @@ statement accomplishes this much more efficiently. In addition, @code{nextfile} is useful inside a @code{BEGINFILE} rule to skip over a file that would otherwise cause @command{gawk} -to exit with a fatal error. @xref{BEGINFILE/ENDFILE}. +to exit with a fatal error. In this case, @code{ENDFILE} rules are not +executed. @xref{BEGINFILE/ENDFILE}. While one might think that @samp{close(FILENAME)} would accomplish the same as @code{nextfile}, this isn't true. @code{close()} is |