diff options
Diffstat (limited to 'compiler/syntaxes.nim')
| -rw-r--r-- | compiler/syntaxes.nim | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/compiler/syntaxes.nim b/compiler/syntaxes.nim index 4014d4c58..5413565e6 100644 --- a/compiler/syntaxes.nim +++ b/compiler/syntaxes.nim @@ -51,15 +51,15 @@ proc parseTopLevelStmt*(p: var TParsers): PNode = result = ast.emptyNode proc utf8Bom(s: string): int = - if s[0] == '\xEF' and s[1] == '\xBB' and s[2] == '\xBF': + if s.len >= 3 and s[0] == '\xEF' and s[1] == '\xBB' and s[2] == '\xBF': result = 3 else: result = 0 proc containsShebang(s: string, i: int): bool = - if s[i] == '#' and s[i+1] == '!': + if i+1 < s.len and s[i] == '#' and s[i+1] == '!': var j = i + 2 - while s[j] in Whitespace: inc(j) + while j < s.len and s[j] in Whitespace: inc(j) result = s[j] == '/' proc parsePipe(filename: string, inputStream: PLLStream; cache: IdentCache): PNode = @@ -74,9 +74,9 @@ proc parsePipe(filename: string, inputStream: PLLStream; cache: IdentCache): PNo discard llStreamReadLine(s, line) i = 0 inc linenumber - if line[i] == '#' and line[i+1] == '?': + if i+1 < line.len and line[i] == '#' and line[i+1] == '?': inc(i, 2) - while line[i] in Whitespace: inc(i) + while i < line.len and line[i] in Whitespace: inc(i) var q: TParser parser.openParser(q, filename, llStreamOpen(substr(line, i)), cache) result = parser.parseAll(q) |