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Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 707 |
1 files changed, 361 insertions, 346 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index 78385ba5..6bf42aa4 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -4590,8 +4590,10 @@ value is `"FS"' if regular field splitting is being used, or it is if (PROCINFO["FS"] == "FS") REGULAR FIELD SPLITTING ... - else + else if (PROCINFO["FS"] == "FIELDWIDTHS") FIXED-WIDTH FIELD SPLITTING ... + else + CONTENT-BASED FIELD SPLITTING ... This information is useful when writing a function that needs to temporarily change `FS' or `FIELDWIDTHS', read some records, and then @@ -4675,6 +4677,9 @@ would be to remove the quotes when they occur, with something like this: As with `FS', the `IGNORECASE' variable (*note User-modified::) affects field splitting with `FPAT'. + Similar to `FIELDWIDTHS', the value of `PROCINFO["FS"]' will be +`"FPAT"' if content-based field splitting is being used. + NOTE: Some programs export CSV data that contains embedded newlines between the double quotes. `gawk' provides no way to deal with this. Since there is no formal specification for CSV @@ -4682,8 +4687,8 @@ affects field splitting with `FPAT'. provides an elegant solution for the majority of cases, and the `gawk' maintainer is satisfied with that. - As written, the regexp used for `FPATH' requires that each field -have a least one character. A straightforward modification (changing + As written, the regexp used for `FPAT' requires that each field have +a least one character. A straightforward modification (changing changed the first `+' to `*') allows fields to be empty: FPAT = "([^,]*)|(\"[^\"]+\")" @@ -9369,6 +9374,11 @@ with a pound sign (`#'). `PROCINFO["uid"]' The value of the `getuid()' system call. + `PROCINFO["strftime"]' + The default time format string for `strftime()'. Assigning a + new value to this element changes the default. *Note Time + Functions::. + `PROCINFO["version"]' The version of `gawk'. @@ -11423,9 +11433,12 @@ Optional parameters are enclosed in square brackets ([ ]): TIMESTAMP is in the same format as the value returned by the `systime()' function. If no TIMESTAMP argument is supplied, `gawk' uses the current time of day as the timestamp. If no - FORMAT argument is supplied, `strftime()' uses - `"%a %b %e %H:%M:%S %Z %Y"'. This format string produces output - that is equivalent to that of the `date' utility. + FORMAT argument is supplied, `strftime()' uses the value of + `PROCINFO["strftime"]' as the format string. The default string + value is `"%a %b %e %H:%M:%S %Z %Y"'. This format string produces + output that is equivalent to that of the `date' utility. You can + assign a new value to `PROCINFO["strftime"]' to change the default + format. `systime()' Return the current time as the number of seconds since the system @@ -11471,8 +11484,8 @@ the following date format specifications: `%A %B %d %T %Y' in the `"C"' locale.) `%C' - The century. This is the year divided by 100 and truncated to the - next lower integer. + The century part of the current year. This is the year divided by + 100 and truncated to the next lower integer. `%d' The day of the month as a decimal number (01-31). @@ -19570,6 +19583,8 @@ all be disabled with either the `--traditional' or `--posix' options * The `FPAT' variable and its effects (*note Splitting By Content::). + * `PROCINFO["strftime"]' was added (*note Auto-set::). + * The `patsplit()' function (*note String Functions::). * The `/inet4' and `/inet6' special files for TCP/IP networking @@ -24760,7 +24775,7 @@ Index (line 67) * advanced features, data files as single record: Records. (line 172) * advanced features, fixed-width data: Constant Size. (line 9) -* advanced features, FNR/NR variables: Auto-set. (line 195) +* advanced features, FNR/NR variables: Auto-set. (line 200) * advanced features, gawk: Advanced Features. (line 6) * advanced features, gawk, network programming: TCP/IP Networking. (line 6) @@ -25184,7 +25199,7 @@ Index * continue statement: Continue Statement. (line 6) * control statements: Statements. (line 6) * converting, case: String Functions. (line 494) -* converting, dates to timestamps: Time Functions. (line 71) +* converting, dates to timestamps: Time Functions. (line 74) * converting, during subscripting: Numeric Array Subscripts. (line 31) * converting, numbers: Conversion. (line 6) @@ -25234,7 +25249,7 @@ Index (line 47) * dark corner, FILENAME variable <1>: Auto-set. (line 92) * dark corner, FILENAME variable: Getline Notes. (line 19) -* dark corner, FNR/NR variables: Auto-set. (line 195) +* dark corner, FNR/NR variables: Auto-set. (line 200) * dark corner, format-control characters: Control Letters. (line 18) * dark corner, FS as null string: Single Character Fields. (line 20) @@ -25258,8 +25273,8 @@ Index * database, group, reading: Group Functions. (line 6) * database, users, reading: Passwd Functions. (line 6) * date utility, GNU: Time Functions. (line 17) -* date utility, POSIX: Time Functions. (line 258) -* dates, converting to timestamps: Time Functions. (line 71) +* date utility, POSIX: Time Functions. (line 261) +* dates, converting to timestamps: Time Functions. (line 74) * dates, information related to, localization: Explaining gettext. (line 115) * Davies, Stephen <1>: Contributors. (line 69) @@ -25433,7 +25448,7 @@ Index * differences in awk and gawk, regular expressions: Case-sensitivity. (line 26) * differences in awk and gawk, RS/RT variables: Records. (line 164) -* differences in awk and gawk, RT variable: Auto-set. (line 184) +* differences in awk and gawk, RT variable: Auto-set. (line 189) * differences in awk and gawk, single-character fields: Single Character Fields. (line 6) * differences in awk and gawk, split() function: String Functions. @@ -25696,7 +25711,7 @@ Index * floating-point, numbers, AWKNUM internal type: Internals. (line 19) * FNR variable <1>: Auto-set. (line 102) * FNR variable: Records. (line 6) -* FNR variable, changing: Auto-set. (line 195) +* FNR variable, changing: Auto-set. (line 200) * for statement: For Statement. (line 6) * for statement, in arrays: Scanning an Array. (line 20) * force_number internal function: Internals. (line 27) @@ -25705,7 +25720,7 @@ Index (line 57) * format specifiers, printf statement: Control Letters. (line 6) * format specifiers, strftime() function (gawk): Time Functions. - (line 84) + (line 87) * format strings: Basic Printf. (line 15) * formats, numeric output: OFMT. (line 6) * formatting output: Printf. (line 6) @@ -26252,7 +26267,7 @@ Index * not Boolean-logic operator: Boolean Ops. (line 6) * NR variable <1>: Auto-set. (line 118) * NR variable: Records. (line 6) -* NR variable, changing: Auto-set. (line 195) +* NR variable, changing: Auto-set. (line 200) * null strings <1>: Basic Data Typing. (line 47) * null strings <2>: Truth Values. (line 6) * null strings <3>: Regexp Field Splitting. @@ -26469,7 +26484,7 @@ Index (line 29) * POSIX awk, continue statement and: Continue Statement. (line 43) * POSIX awk, CONVFMT variable and: User-modified. (line 28) -* POSIX awk, date utility and: Time Functions. (line 258) +* POSIX awk, date utility and: Time Functions. (line 261) * POSIX awk, field separators and <1>: Field Splitting Summary. (line 41) * POSIX awk, field separators and: Fields. (line 6) @@ -26677,7 +26692,7 @@ Index * right angle bracket (>), >> operator (I/O): Redirection. (line 50) * right shift, bitwise: Bitwise Functions. (line 32) * Ritchie, Dennis: Basic Data Typing. (line 71) -* RLENGTH variable: Auto-set. (line 171) +* RLENGTH variable: Auto-set. (line 176) * RLENGTH variable, match() function and: String Functions. (line 194) * Robbins, Arnold <1>: Future Extensions. (line 6) * Robbins, Arnold <2>: Bugs. (line 29) @@ -26703,9 +26718,9 @@ Index * RS variable: Records. (line 20) * RS variable, multiline records and: Multiple Line. (line 17) * rshift() function (gawk): Bitwise Functions. (line 51) -* RSTART variable: Auto-set. (line 177) +* RSTART variable: Auto-set. (line 182) * RSTART variable, match() function and: String Functions. (line 194) -* RT variable <1>: Auto-set. (line 184) +* RT variable <1>: Auto-set. (line 189) * RT variable <2>: Multiple Line. (line 129) * RT variable: Records. (line 112) * Rubin, Paul <1>: Contributors. (line 16) @@ -26882,7 +26897,7 @@ Index * syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops. (line 148) * system() function: I/O Functions. (line 64) -* systime() function (gawk): Time Functions. (line 61) +* systime() function (gawk): Time Functions. (line 64) * t debugger command (alias for tbreak): Breakpoint Control. (line 83) * tandem: Tandem Installation. (line 6) * tbreak debugger command: Breakpoint Control. (line 83) @@ -26925,7 +26940,7 @@ Index (line 6) * time, retrieving: Time Functions. (line 17) * timestamps: Time Functions. (line 6) -* timestamps, converting dates to: Time Functions. (line 71) +* timestamps, converting dates to: Time Functions. (line 74) * timestamps, formatted: Gettimeofday Function. (line 6) * tolower() function: String Functions. (line 495) @@ -27208,328 +27223,328 @@ Node: Command Line Field Separator191551 Node: Field Splitting Summary194990 Ref: Field Splitting Summary-Footnote-1198176 Node: Constant Size198277 -Node: Splitting By Content202748 -Ref: Splitting By Content-Footnote-1206350 -Node: Multiple Line206390 -Ref: Multiple Line-Footnote-1212130 -Node: Getline212309 -Node: Plain Getline214537 -Node: Getline/Variable216626 -Node: Getline/File217767 -Node: Getline/Variable/File219089 -Ref: Getline/Variable/File-Footnote-1220688 -Node: Getline/Pipe220775 -Node: Getline/Variable/Pipe223323 -Node: Getline/Coprocess224430 -Node: Getline/Variable/Coprocess225673 -Node: Getline Notes226387 -Node: Getline Summary228329 -Ref: table-getline-variants228613 -Node: Command line directories229518 -Node: Printing230143 -Node: Print231774 -Node: Print Examples233111 -Node: Output Separators235895 -Node: OFMT237654 -Node: Printf239012 -Node: Basic Printf239918 -Node: Control Letters241455 -Node: Format Modifiers245267 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next-edition990681 +Node: unresolved991033 +Node: revision991533 +Node: consistency991956 +Node: Index995309 End Tag Table |