1 function stringthesizer(options, struct) {

2 // options:

3 // nextPlaceholder (function)

4 // valueSeparator (string)

5 // coerce (function)

6 var cmdParts = [];

7 var args = [];

8 var process = function(struct, skipCoercion) {

9 if (struct instanceof Array) {

10 var structIdx = 0;

11 var next = function() { return struct[structIdx++]; };

12 next().match(/[^?$]+|\?\??\??|\$\$?\$?/g).forEach(function(stringPart) {

13 if (stringPart == "?") {

14 cmdParts.push(options.nextPlaceholder(args.length));

15 args.push(next())

16 } else if (stringPart == "??") {

17 var first = true;

18 next().forEach(function(entry) {

19 if (first) first = false;

20 else cmdParts.push(options.valueSeparator);

21 cmdParts.push(options.nextPlaceholder(args.length));

22 args.push(entry)

23 });

24 } else if (stringPart == "???") {

25 cmdParts.push("?");

26 } else if (stringPart == "$") {

27 process(next());

28 } else if (stringPart == "$$") {

29 var sep = next();

30 var first = true;

31 next().forEach(function(entry) {

32 if (first) first = false;

33 else cmdParts.push(sep);

34 process(entry);

35 });

36 } else if (stringPart == "$$$") {

37 cmdParts.push("$");

38 } else {

39 cmdParts.push(stringPart);

40 }

41 });

42 if (structIdx != struct.length) { throw "Wrong argument count for stringthesizer"; }

43 } else if (skipCoercion || typeof (struct) == 'string') {

44 cmdParts.push(struct);

45 } else {

46 process(options.coerce(struct), true);

47 }

48 }

49 process(struct);

50 return { cmd: cmdParts.join(""), args: args };

51 }

52

53 exports.stringthesizer = stringthesizer;