/usr/lib/nodejs/sprintf-js/src/sprintf.js is in node-sprintf-js 1.0.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | (function(window) {
var re = {
not_string: /[^s]/,
number: /[diefg]/,
json: /[j]/,
not_json: /[^j]/,
text: /^[^\x25]+/,
modulo: /^\x25{2}/,
placeholder: /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-gijosuxX])/,
key: /^([a-z_][a-z_\d]*)/i,
key_access: /^\.([a-z_][a-z_\d]*)/i,
index_access: /^\[(\d+)\]/,
sign: /^[\+\-]/
}
function sprintf() {
var key = arguments[0], cache = sprintf.cache
if (!(cache[key] && cache.hasOwnProperty(key))) {
cache[key] = sprintf.parse(key)
}
return sprintf.format.call(null, cache[key], arguments)
}
sprintf.format = function(parse_tree, argv) {
var cursor = 1, tree_length = parse_tree.length, node_type = "", arg, output = [], i, k, match, pad, pad_character, pad_length, is_positive = true, sign = ""
for (i = 0; i < tree_length; i++) {
node_type = get_type(parse_tree[i])
if (node_type === "string") {
output[output.length] = parse_tree[i]
}
else if (node_type === "array") {
match = parse_tree[i] // convenience purposes only
if (match[2]) { // keyword argument
arg = argv[cursor]
for (k = 0; k < match[2].length; k++) {
if (!arg.hasOwnProperty(match[2][k])) {
throw new Error(sprintf("[sprintf] property '%s' does not exist", match[2][k]))
}
arg = arg[match[2][k]]
}
}
else if (match[1]) { // positional argument (explicit)
arg = argv[match[1]]
}
else { // positional argument (implicit)
arg = argv[cursor++]
}
if (get_type(arg) == "function") {
arg = arg()
}
if (re.not_string.test(match[8]) && re.not_json.test(match[8]) && (get_type(arg) != "number" && isNaN(arg))) {
throw new TypeError(sprintf("[sprintf] expecting number but found %s", get_type(arg)))
}
if (re.number.test(match[8])) {
is_positive = arg >= 0
}
switch (match[8]) {
case "b":
arg = arg.toString(2)
break
case "c":
arg = String.fromCharCode(arg)
break
case "d":
case "i":
arg = parseInt(arg, 10)
break
case "j":
arg = JSON.stringify(arg, null, match[6] ? parseInt(match[6]) : 0)
break
case "e":
arg = match[7] ? arg.toExponential(match[7]) : arg.toExponential()
break
case "f":
arg = match[7] ? parseFloat(arg).toFixed(match[7]) : parseFloat(arg)
break
case "g":
arg = match[7] ? parseFloat(arg).toPrecision(match[7]) : parseFloat(arg)
break
case "o":
arg = arg.toString(8)
break
case "s":
arg = ((arg = String(arg)) && match[7] ? arg.substring(0, match[7]) : arg)
break
case "u":
arg = arg >>> 0
break
case "x":
arg = arg.toString(16)
break
case "X":
arg = arg.toString(16).toUpperCase()
break
}
if (re.json.test(match[8])) {
output[output.length] = arg
}
else {
if (re.number.test(match[8]) && (!is_positive || match[3])) {
sign = is_positive ? "+" : "-"
arg = arg.toString().replace(re.sign, "")
}
else {
sign = ""
}
pad_character = match[4] ? match[4] === "0" ? "0" : match[4].charAt(1) : " "
pad_length = match[6] - (sign + arg).length
pad = match[6] ? (pad_length > 0 ? str_repeat(pad_character, pad_length) : "") : ""
output[output.length] = match[5] ? sign + arg + pad : (pad_character === "0" ? sign + pad + arg : pad + sign + arg)
}
}
}
return output.join("")
}
sprintf.cache = {}
sprintf.parse = function(fmt) {
var _fmt = fmt, match = [], parse_tree = [], arg_names = 0
while (_fmt) {
if ((match = re.text.exec(_fmt)) !== null) {
parse_tree[parse_tree.length] = match[0]
}
else if ((match = re.modulo.exec(_fmt)) !== null) {
parse_tree[parse_tree.length] = "%"
}
else if ((match = re.placeholder.exec(_fmt)) !== null) {
if (match[2]) {
arg_names |= 1
var field_list = [], replacement_field = match[2], field_match = []
if ((field_match = re.key.exec(replacement_field)) !== null) {
field_list[field_list.length] = field_match[1]
while ((replacement_field = replacement_field.substring(field_match[0].length)) !== "") {
if ((field_match = re.key_access.exec(replacement_field)) !== null) {
field_list[field_list.length] = field_match[1]
}
else if ((field_match = re.index_access.exec(replacement_field)) !== null) {
field_list[field_list.length] = field_match[1]
}
else {
throw new SyntaxError("[sprintf] failed to parse named argument key")
}
}
}
else {
throw new SyntaxError("[sprintf] failed to parse named argument key")
}
match[2] = field_list
}
else {
arg_names |= 2
}
if (arg_names === 3) {
throw new Error("[sprintf] mixing positional and named placeholders is not (yet) supported")
}
parse_tree[parse_tree.length] = match
}
else {
throw new SyntaxError("[sprintf] unexpected placeholder")
}
_fmt = _fmt.substring(match[0].length)
}
return parse_tree
}
var vsprintf = function(fmt, argv, _argv) {
_argv = (argv || []).slice(0)
_argv.splice(0, 0, fmt)
return sprintf.apply(null, _argv)
}
/**
* helpers
*/
function get_type(variable) {
return Object.prototype.toString.call(variable).slice(8, -1).toLowerCase()
}
function str_repeat(input, multiplier) {
return Array(multiplier + 1).join(input)
}
/**
* export to either browser or node.js
*/
if (typeof exports !== "undefined") {
exports.sprintf = sprintf
exports.vsprintf = vsprintf
}
else {
window.sprintf = sprintf
window.vsprintf = vsprintf
if (typeof define === "function" && define.amd) {
define(function() {
return {
sprintf: sprintf,
vsprintf: vsprintf
}
})
}
}
})(typeof window === "undefined" ? this : window);
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