Category talk:Wren-str: Difference between revisions
Content added Content deleted
(→Source code: Adjustments mostly to extend case change methods to Latin-1 (ASCII only previously).) |
(Added Str.fromBytes and Str.fromCodePoints methods. Removed type aliases which are no longer needed.) |
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} |
} |
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/* The indices (or ranges thereof) for all the following functions are measured in codepoints |
/* The indices (or ranges thereof) for all the following functions are measured in codepoints |
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(not bytes). Negative indices count backwards from the end of the string. As with core |
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library methods, the indices must be within bounds or errors will be generated. */ |
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// Extracts the sub-string of 's' over the range 'r'. |
// Extracts the sub-string of 's' over the range 'r'. |
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if (final > 0) res.add(sub(s, first..-1)) |
if (final > 0) res.add(sub(s, first..-1)) |
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return res |
return res |
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} |
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// Creates and returns a string from a list of bytes. |
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static fromBytes(ba) { |
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if (!(ba is List)) Fiber.abort("Argument must be list of bytes.") |
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var count = ba.count |
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if (count == 0) return "" |
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var chars = ba.map { |b| String.fromByte(b) }.toList |
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return (count < 1000) ? Strs.concat_(chars) : Strs.concat(chars, 1000) |
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} |
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// Creates and returns a string from a list of code points. |
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static fromCodePoints(ca) { |
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if (!(ca is List)) Fiber.abort("Argument must be list of code points.") |
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var count = ca.count |
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if (count == 0) return "" |
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var chars = ca.map { |c| String.fromCodePoint(c) }.toList |
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return (count < 1000) ? Strs.concat_(chars) : Strs.concat(chars, 1000) |
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} |
} |
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} |
} |
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} |
} |
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} |
} |
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}</lang> |
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} |
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// Type aliases for classes in case of any name clashes with other modules. |
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var Str_Char = Char |
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var Str_Str = Str |
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var Str_Strs = Strs |
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var Str_Utf8 = Utf8</lang> |
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