shellwords.coffee
1.32 KB
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scan = (string, pattern, callback) ->
result = ""
while string.length > 0
match = string.match pattern
if match
result += string.slice 0, match.index
result += callback match
string = string.slice(match.index + match[0].length)
else
result += string
string = ""
result
exports.split = (line = "") ->
words = []
field = ""
scan line, ///
\s* # Leading whitespace
(?: #
([^\s\\\'\"]+) # Normal words
| #
'((?:[^\'\\]|\\.)*)' # Stuff in single quotes
| #
"((?:[^\"\\]|\\.)*)" # Stuff in double quotes
| #
(\\.?) # Escaped character
| #
(\S) # Garbage
) #
(\s|$)? # Seperator
///, (match) ->
[raw, word, sq, dq, escape, garbage, seperator] = match
throw new Error "Unmatched quote" if garbage?
field += (word or (sq or dq or escape).replace(/\\(?=.)/, ""))
if seperator?
words.push field
field = ""
words.push field if field
words
exports.escape = (str = "") ->
return "''" unless str?
str.replace(/([^A-Za-z0-9_\-.,:\/@\n])/g, "\\$1").replace(/\n/g, "'\n'")