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Merge pull request #646 from onionhammer/patch-1

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Added base64 encode overload for arrays of integers/bytes
This commit is contained in:
Andreas Rumpf 2013-10-30 10:10:11 -07:00
commit 2a1f8baac4
1 changed files with 126 additions and 116 deletions
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12
lib/pure/base64.nim
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@ -12,7 +12,7 @@
const const
cb64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" cb64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
proc encode*(s: string, lineLen = 75, newLine="\13\10"): string = template encodeInternal(s: expr, lineLen: int, newLine: string): stmt {.immediate.} =
## encodes `s` into base64 representation. After `lineLen` characters, a ## encodes `s` into base64 representation. After `lineLen` characters, a
## `newline` is added. ## `newline` is added.
var total = ((len(s) + 2) div 3) * 4 var total = ((len(s) + 2) div 3) * 4
@ -60,6 +60,16 @@ proc encode*(s: string, lineLen = 75, newLine="\13\10"): string =
else: else:
assert(r == result.len) assert(r == result.len)
proc encode*[T:TInteger|char](s: openarray[T], lineLen = 75, newLine="\13\10"): string =
## encodes `s` into base64 representation. After `lineLen` characters, a
## `newline` is added.
encodeInternal(s, lineLen, newLine)
proc encode*(s: string, lineLen = 75, newLine="\13\10"): string =
## encodes `s` into base64 representation. After `lineLen` characters, a
## `newline` is added.
encodeInternal(s, lineLen, newLine)
proc decodeByte(b: char): int {.inline.} = proc decodeByte(b: char): int {.inline.} =
case b case b
of '+': result = ord('>') of '+': result = ord('>')