Community  »  Perl: Allgemeines Forum

unbek. Synthax: $usage = <<EOT	Seitenanfang
Huhu ihr da draußen!! Könnt ihr mir helfen?! Ich suche schon ne Weile in meinen lieben Perlbüchern was GENAU der unten aufgeführte Synthax macht. Leider habe ich noch nichts genaueres gefunden. Könnt ihr mir vielleicht helfen? <code> $usage = <<EOT; usage cpgi130 [sequencefile] [GCC=X] [OE=X] [LENGTH=X] [HELP] example cpgi130 NT_000000.seq LENGTH=200 EOT $helpmenu = <<EOT; GCC set \%GC of lower limit (50-70,default value:55\%) OE set ObsCpG/ExpCpG of lower limit (0.60-1.00,default value:0.65) LENGTH set length of lower limit (200-1500,default value:500bp) EOT $credit = <<EOT; CpG island searcher command line version Ver 1.3 released 05/21/03 by Takai D. & Jones PA. EOT </code> was ich weiß ist, dass das Script Paramenterwertde übergeben bekommen kann (1. Passage, aber was genau macht "usage", "example"?). Was machst der Synthax <<EOT ........ EOT, weiße ich damit einer Variablen einen String + formatierung zu?! schon mal im Voraus danke!! Datum: 05.10.2005-11:58
re: unbek. Synthax: $usage = <<EOT	Seitenanfang
Hallo Guckst du in "perldoc perldata" A line-oriented form of quoting is based on the shell "here-document" syntax. Following a "<<" you specify a string to terminate the quoted material, and all lines following the current line down to the terminating string are the value of the item. The terminating string may be either an identifier (a word), or some quoted text. If quoted, the type of quotes you use determines the treat- ment of the text, just as in regular quoting. An unquoted identifier works like double quotes. There must be no space between the "<<" and the identifier, unless the identifier is quoted. (If you put a space it will be treated as a null identifier, which is valid, and matches the first empty line.) The terminating string must appear by itself (unquoted and with no surrounding whitespace) on the terminating line. Gruss Kristian Datum: 05.10.2005-14:25