21 lines
1.2 KiB
Factor
21 lines
1.2 KiB
Factor
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USING: help.markup help.syntax strings byte-arrays alien libc
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debugger io.encodings.string sequences ;
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IN: alien.strings
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HELP: string>alien
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{ $values { "string" string } { "encoding" "an encoding descriptor" } { "byte-array" byte-array } }
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{ $description "Encodes a string together with a trailing null code point using the given encoding, and stores the resulting bytes in a freshly-allocated byte array." }
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{ $errors "Throws an error if the string contains null characters, or characters not representable in the given encoding." } ;
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HELP: alien>string
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{ $values { "c-ptr" c-ptr } { "encoding" "an encoding descriptor" } { "string/f" "a string or " { $link f } } }
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{ $description "Reads a null-terminated C string from the specified address with the given encoding." } ;
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HELP: string>symbol
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{ $values { "str" string } { "alien" alien } }
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{ $description "Converts the string to a format which is a valid symbol name for the Factor VM's compiled code linker. By performing this conversion ahead of time, the image loader can run without allocating memory."
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$nl
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"On Windows CE, symbols are represented as UCS2 strings, and on all other platforms they are ASCII strings." } ;
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ABOUT: "c-strings"
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