╞UNCTION: ╟╥┼╨ ╒SAGE: ╟╥┼╨ [-OPTIONS] ╥EGULAR┼XPRESSION ╞ILE(S) ╟REP IS SOMETHING YOU'VE PROBABLY COME ACROSS BEFORE. ╔T SCANS A LIST OFTEXT FILES FOR LINES CONTAINING A SPECIFIED PATTERN AND DISPLAYS ANY MATCHINGLINES. ╘HIS IMPLEMENTATION IS ESSENTIALLY THE SAME AS WHAT YOU'D COME ACCROSSIN AN ═╙-─╧╙, ├╨/═, ┴MIGA─╧╙ OR ╒╬╔╪ IMPLEMENTATION, AND WAS DERIVED FROM THEORIGINAL 1980 ─┼├╒╙ SOURCE CODE. ╙INCE THAT SOURCE CODE IS IN THE PUBLICDOMAIN, SO IS THIS IMPLEMENTATION OF IT. ╘HAT SOURCE CAN BE FOUND IN A NUMBEROF PLACES, INCLUDING DISK #314 OF THE ╨├-╙╔╟ COLLECTION. ╘HIS IMPLEMENTATION USES SERVICES PROVIDED BY ├╙-─╧╙ ON THE ├OMMODORE 128AND WILL NOT WORK WITHOUT IT. ┘OU MUST HAVE ├╙-─╧╙ LOADED AND ACTIVE OR THISWILL NOT WORK. ╟REP EXPECTS TO BE PROCESSING TEXT FILES. ╔F YOU RUN IT ON PROGRAMS OROTHER BINARY FILES THE SCREEN WILL LIKELY GET GARBLED THE SAME AS IF YOU HAD╘┘╨┼'D THE FILE. ╟REP CAN STILL SUPPLY SOME USEFUL INFORMATION THOUGH, BUTYOU SHOULD USE -C TO SUPPRESS OUTPUT. ╧PTIONS ARE: -C - ╟REP WILL DISPLAY ONLY A COUNT OF THE NUMBER OF MATCHES, AND DOES NOT DISPLAY THE LINES CONTAINING THE SPECIFIED PATTERN. -F - ╔F YOU SPECIFY -F THEN FILENAMES ARE NOT SHOWN. ╬ORMALLY THEY ARE SHOWN. -N - ╟REP WILL PRINT LINE NUMBERS OF MATCHING LINES TO THE LEFT OF THE LINE. ╬ORMALLY IT DOESN'T. -V - ╟REP SHOWS ONLY LINES THAT DON'T CONTAIN THE SPECIFIED PATTERN. -Y - ╬ORMALLY ALPHABETIC CHARACTERS ARE CASE SENSITIVE. ╫ITH -Y CASE IS IGNORED. ( [A-Z] IS THE SAME AS [┴-┌] ) ╥EGULAR ┼XPRESSIONS: ╥EGULAR EXPRESSIONS SIMILAR TO THE * AND ? CHARACTERS USED IN SPECIFYINGFILENAMES TO ├┬═'S ─╧╙. ╔F YOU HAVN'T COME ACCROSS THEM BEFORE, ITS WORTH THEEFFORT OF GETTING AQUAINTED WITH THEM BECAUSE THEY KEEP POPPING UP HERE ANDTHERE IN VARIOUS PROGRAMS THAT YOU'LL LIKELY COME ACCROSS IN THE FUTURE. ╩UST AS * AND ? ARE 'SPECIAL' CHARACTERS IN ├┬═ FILENAMES, REGULAREXPRESSIONS CONTAIN A NUMBER OF SPECIAL CHARACTERS. ╔'LL JUST LIST THEM OFFAND GIVE A BUNCH OF EXAMPLES LATER TO ILLUSTRATE THIER USAGE. \ - ╘HE BACKSLASH (OR THE BRITISH POUND SIGN ON THE ├┬═ KEYBOARD) IS USED TO OVERRIDE THE SPECIAL MEANING OF A CHARACTER. ╘HUS \\ - MATCHES A BACKSLASH \. - MATCHES A PERIOD . - ╘HE PERIOD IS THE WILDCARD CHARACTER IN REGULAR EXPRESIONS. ╔T MATCHES ANY CHARACTER. ╞OR EXAMPLE: B.B - MATCHES BOB, BUB BBB AND SO ON. ^ - ╘HE CIRCUMFLEX (OR UP ARROW ON THE ├┬═ KEYBOARD) MATCHES THE START OF A LINE. ^; - MATCHES ALL LINES THAT START WITH A SEMI-COLON $ - ╘HE DOLLAR SIGN MATCHES THE END OF A LINE. ,X)$ - MATCHES ALL LINES THAT END WITH ",X)" [] - ┴ LIST OF CHARACTERS WITHIN SQUARE BRACKETS (A CLASS) MATCHES ANY OF THE CHARACTERS IN THE CLASS. LD[AXY] - MATCHES LDA, LDX OR LDY [^] - ╨RECEDING THE LIST WITH A CIRCUMFLEX MATCHES ANYTHING EXCEPT CHARACTERS IN THE CLASS. ^[; ] - MATCHES ALL LINES WHICH DO NOT START WITH EITHER A SEMICOLON OR A SPACE. [A-Z] ╙PECIFIES A RANGE OF CHARACTERS. [A-Z][0-9]= - MATCHES A0= B1= C3= AND SO ON * - ┴ CHARACTER FOLLOWED BY AN ASTERISK MATCHES ZERO OR MORE OCURRENCES OF THAT CHARACTER. A* - MATCHES A, AA, AAA, AND SO ON A*[0-9]* - MATCHES 9, A89, AAAA1234 AND SO ON + - ┴ CHARACTER FOLLOWED BY A PLUS SIGN MATCHES ONE OR MORE OCCURENCES OF THAT CHARACTER. X+ IS THE SAME AS XX* A+B+C - MATCHES ABC, AABBCC, BUT NOT AC OR BC A+[0-9]* - MATCHES A89, AAAA1234 BUT NOT 9 - - ┴ CHARACTER FOLLOWED BY A - OPTIONALLY MATCHES THAT CHARACTER. A-B-C - MATCHES AC OR BC OR C IF:B( - MATCHES "IF (" IF:B-( - MATCHES "IF (" OR "IF(" ╨REDEFINED CLASSES: ┴S AN ALTERNATIVE TO USING [A-Z], [0-9] AND SO ON, SOME CLASSES ARE PREDEFINED. :A - SHORTHAND FOR [A-Z┴-┌] (ALPHA) :B - ═ATCHES ANY WHITESPACE (SPACES, TABS OR NEWLINES) : (COLON SPACE) SAME AS :B :D - SHORTHAND FOR [0-9] (DIGIT) :N - SHORTHAND FOR [A-Z┴-┌0-9] (ALPHANUMERIC) :Q - SHORTHAND FOR ['"] (AVOIDS COMMAND LINE PARSING PROBLEMS) :X - SHORTHAND FOR [0-9A-F┴-╞] (HEXADECIMAL DIGIT) ╬OTES: ┬LANK LINES ARE IGNORED, SO THEY CAN NEVER MATCH. ┼XPRESSIONS THAT CONTAIN SPACES OR COMMAS SHOULD BE ENCLOSED IN QUOTES. ╞OR EXAMPLE GREP "IF (" FILE - ╙EARCHES ONE FILE NAMED "FILE" FOR OCCURRENCES OF "IF (", BUT GREP IF ( FILE - ╙EARCHES TWO FILES NAMED "(" AND "FILE" FOR OCCURRENCES OF "IF" ╘WO VERSIONS OF ╟╥┼╨ ARE PROVIDED. ┬OTH ARE FUNCTIONALLY EQUIVALENT. ┘OU SHOULD CHOOSE THE ONE YOU WANT, RENAME IT TO "╟╥┼╨" AND DISCARD THE OTHER ONE. ╟╥┼╨1 IS COMPILED TO RUN IN BANK 1 AT $4000. ╘HIS HAS THE ADVANTAGE OF LEAVING YOUR TEXT AREA ALONE IN BANK 0, SO IF YOU'RE EDITING A ┬┴╙╔├ PROGRAM ╟╥┼╨ WON'T ╠╧┴─ IN OVERTOP OF IT. ┘OU MUST USE ╔╬╙╘┴╠╠/1 GREP TO INSTALL ╟╥┼╨ IN THE ╥┴═ DISK. ╙INCE ├╙-─╧╙ ALWAYS LOADS PROGRAMS FROM DISK INTO BANK 15, YOU CAN'T EXECUTE ╟╥┼╨1 FROM FLOPPY. ╟╥┼╨0 IS COMPILED TO RUN IN BANK 15 AT $1C01. ╘HIS MEANS THAT IT WILL CLOBBER ANY ┬┴╙╔├ PROGRAM BEING EDITED. ╚OWEVER THEY CAN BE RUN FROM FLOPPY, SO IF YOU WANT RUN ╟╥┼╨ ON FLOPPY RATHER THAN THE ╥┴═ DISK, YOU'LL NEED TO USE THIS ONE. ╟╥┼╨ WILL NOT WORK WITH ├╙-─╧╙ 1.1, IT REQUIRES 1.4 OR HIGHER. ┼XAMPLES: GREP FOR FILE1 FILE2 ╙EARCHES "FILE1" AND "FILE2" FOR LINES CONTAINING THE STRING "FOR", "╞╧╥", "╞OR", "╞O╥" AND SO ON. GREP FOR FILE1 FILE2 -Y ╙AME BUT MATCHES ONLY "FOR" GREP -C :Q.*:Q *.ASM ╙EARCHES ALL FILES WHOSE NAME ENDS WITH ".ASM" FOR ANY LINES CONTAINING QUOTED STRINGS; ┼ITHER 'SINGLE' OR "DOUBLE" QUOTES, AND SHOWS ONLY THE NUMBER OF LINES MATCHED FOR EACH FILE. GREP #\$:X+[:B;] G*.ASM B*.ASM ╙EARCHES ALL FILES STARTING WITH "G" OR "B" AND ENDING WITH ".ASM" FOR "#$" FOLLOWED BY A HEXADECIMAL NUMBER FOLLOWED BY EITHER A NEWLINE, A SEMICOLON OR WHITESPACE. GREP :A+:N*\$ TEXT.BAS ╙EARCHES "TEXT.BAS" FOR WHAT WOULD BE A LEGAL ┬┴╙╔├ STRING VARIABLE NAME.
