mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2025-12-28 17:04:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

fix parseChar see #16240 (#16245)

Browse Source 
* fix parseChar

* do not introduce new double backticks
This commit is contained in:
Pietro Peterlongo
2020-12-06 10:14:55 +01:00
committed by GitHub
parent 93b6fac468
commit 57d2c293d3
1 changed files with 14 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
lib/pure/parseutils.nim
View File

@@ -211,6 +211,7 @@ proc parseHex*[T: SomeInteger](s: string, number: var T, start = 0,
proc parseIdent*(s: string, ident: var string, start = 0): int =
## Parses an identifier and stores it in ``ident``. Returns
## the number of the parsed characters or 0 in case of an error.
## If error, the value of `ident` is not changed.
runnableExamples:
var res: string
doAssert parseIdent("Hello World", res, 0) == 5
@@ -241,9 +242,19 @@ proc parseIdent*(s: string, start = 0): string =
while i < s.len and s[i] in IdentChars: inc(i)
result = substr(s, start, i-1)
proc parseChar*(s: string, ident: var char, start = 0): int =
ident = s[start]
result = 1
proc parseChar*(s: string, c: var char, start = 0): int =
## Parses a single character, stores it in `c` and returns 1.
## In case of error (if start >= s.len) it returns 0
## and the value of `c` is unchanged.
runnableExamples:
var c: char
doAssert "nim".parseChar(c, 3) == 0
doAssert c == '\0'
doAssert "nim".parseChar(c, 0) == 1
doAssert c == 'n'
if start < s.len:
c = s[start]
result = 1
proc skipWhitespace*(s: string, start = 0): int {.inline.} =
## Skips the whitespace starting at ``s[start]``. Returns the number of