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Merge pull request #834 from gradha/pr_adds_strutils_const

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Adds AllChars constant to strutils.
This commit is contained in:
Andreas Rumpf 2014-02-01 16:08:58 -08:00
commit 8fa4401b20
1 changed files with 10 additions and 0 deletions
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10
lib/pure/strutils.nim
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@ -45,6 +45,16 @@ const
NewLines* = {'\13', '\10'} NewLines* = {'\13', '\10'}
## the set of characters a newline terminator can start with ## the set of characters a newline terminator can start with
AllChars* = {'\x00'..'\xFF'}
## A set with all the possible characters. Not very useful by its own, you
## can use it to create *inverted* sets to make the ``find()`` proc find
## **invalid** characters in strings. Example:
##
## .. code-block:: nimrod
## let invalid = AllChars - Digits
## doAssert "01234".find(invalid) == -1
## doAssert "01A34".find(invalid) == 2
proc toLower*(c: char): char {.noSideEffect, procvar, proc toLower*(c: char): char {.noSideEffect, procvar,
rtl, extern: "nsuToLowerChar".} = rtl, extern: "nsuToLowerChar".} =
## Converts `c` into lower case. This works only for the letters A-Z. ## Converts `c` into lower case. This works only for the letters A-Z.