46 lines
896 B
JavaScript
46 lines
896 B
JavaScript
|
var splitRE = /\r?\n/g
|
||
|
|
var emptyRE = /^\s*$/
|
||
|
|
var needFixRE = /^(\r?\n)*[\t\s]/
|
||
|
|
|
||
|
|
module.exports = function deindent (str) {
|
||
|
|
if (!needFixRE.test(str)) {
|
||
|
|
return str
|
||
|
|
}
|
||
|
|
var lines = str.split(splitRE)
|
||
|
|
var min = Infinity
|
||
|
|
var type, cur, c
|
||
|
|
for (var i = 0; i < lines.length; i++) {
|
||
|
|
var line = lines[i]
|
||
|
|
if (!emptyRE.test(line)) {
|
||
|
|
if (!type) {
|
||
|
|
c = line.charAt(0)
|
||
|
|
if (c === ' ' || c === '\t') {
|
||
|
|
type = c
|
||
|
|
cur = count(line, type)
|
||
|
|
if (cur < min) {
|
||
|
|
min = cur
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return str
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
cur = count(line, type)
|
||
|
|
if (cur < min) {
|
||
|
|
min = cur
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return lines.map(function (line) {
|
||
|
|
return line.slice(min)
|
||
|
|
}).join('\n')
|
||
|
|
}
|
||
|
|
|
||
|
|
function count (line, type) {
|
||
|
|
var i = 0
|
||
|
|
while (line.charAt(i) === type) {
|
||
|
|
i++
|
||
|
|
}
|
||
|
|
return i
|
||
|
|
}
|