jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

strutils: document parseEnum [ci skip]

Browse source
This commit is contained in:
narimiran 2019-02-25 11:33:18 +01:00
commit 2074ad1416
1 changed files with 23 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

23
lib/pure/strutils.nim
View file

@ -1173,6 +1173,18 @@ proc parseEnum*[T: enum](s: string): T =
## ##
## Raises ``ValueError`` for an invalid value in `s`. The comparison is ## Raises ``ValueError`` for an invalid value in `s`. The comparison is
## done in a style insensitive way. ## done in a style insensitive way.
runnableExamples:
type
MyEnum = enum
first = "1st",
second,
third = "3rd"
doAssert parseEnum[MyEnum]("1_st") == first
doAssert parseEnum[MyEnum]("second") == second
doAssertRaises(ValueError):
echo parseEnum[MyEnum]("third")
for e in low(T)..high(T): for e in low(T)..high(T):
if cmpIgnoreStyle(s, $e) == 0: if cmpIgnoreStyle(s, $e) == 0:
return e return e
@ -1183,6 +1195,17 @@ proc parseEnum*[T: enum](s: string, default: T): T =
## ##
## Uses `default` for an invalid value in `s`. The comparison is done in a ## Uses `default` for an invalid value in `s`. The comparison is done in a
## style insensitive way. ## style insensitive way.
runnableExamples:
type
MyEnum = enum
first = "1st",
second,
third = "3rd"
doAssert parseEnum[MyEnum]("1_st") == first
doAssert parseEnum[MyEnum]("second") == second
doAssert parseEnum[MyEnum]("last", third) == third
for e in low(T)..high(T): for e in low(T)..high(T):
if cmpIgnoreStyle(s, $e) == 0: if cmpIgnoreStyle(s, $e) == 0:
return e return e