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REBOL 3 Functions: read read source /part length /seek index /string /lines Read from a file, URL, or other port. Arguments: source [port! file! url! block!] Refinements: /part - Partial read a given number of units (source relative) length [number!] /seek - Read from a specific position (source relative) index [number!] /string - Convert UTF and line terminators to standard text string /lines - Convert to block of strings (implies /string) See also: write open close load save Description Using READ is the simplest way to get information from a file or URL. This is a higher level port operation that opens a port, reads some or all of the data, then closes the port and returns the data that was read. When used on a file, or URL, the contents of the file, or URL are returned as a string. The /LINES refinement returns read content as a series of lines. One line is created for each line terminator found in the read data. The /PART refinement reads the specified number of elements from the file, URL, or port. Reading a file or URL will read the specified number of characters. Used with /LINES, it reads a specified number of lines. See the User's Guide for more detailed explanation of using READ and its refinements. write %rebol-test-file.r "text file" print read %rebol-test-file.r read write %rebol-test-file.r [ {A learned blockhead is a greater man than an ignorant blockhead. -- Rooseveldt Franklin} ] probe first read/lines %rebol-test-file.r write probe pick (read/lines %rebol-test-file.r) 3 probe read/part %rebol-test-file.r 9 probe read/with %rebol-test-file.r "blockhead" write/append %matrix.avi to-binary "abcdefg" |
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