| /bower_components/yaml.js/src/Escaper.coffee |
|---|
| @@ -0,0 +1,80 @@ |
|---|
| |
| Pattern = require './Pattern' |
| |
| # Escaper encapsulates escaping rules for single |
| # and double-quoted YAML strings. |
| class Escaper |
| |
| # Mapping arrays for escaping a double quoted string. The backslash is |
| # first to ensure proper escaping. |
| @LIST_ESCAPEES: ['\\', '\\\\', '\\"', '"', |
| "\x00", "\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", |
| "\x08", "\x09", "\x0a", "\x0b", "\x0c", "\x0d", "\x0e", "\x0f", |
| "\x10", "\x11", "\x12", "\x13", "\x14", "\x15", "\x16", "\x17", |
| "\x18", "\x19", "\x1a", "\x1b", "\x1c", "\x1d", "\x1e", "\x1f", |
| (ch = String.fromCharCode)(0x0085), ch(0x00A0), ch(0x2028), ch(0x2029)] |
| @LIST_ESCAPED: ['\\\\', '\\"', '\\"', '\\"', |
| "\\0", "\\x01", "\\x02", "\\x03", "\\x04", "\\x05", "\\x06", "\\a", |
| "\\b", "\\t", "\\n", "\\v", "\\f", "\\r", "\\x0e", "\\x0f", |
| "\\x10", "\\x11", "\\x12", "\\x13", "\\x14", "\\x15", "\\x16", "\\x17", |
| "\\x18", "\\x19", "\\x1a", "\\e", "\\x1c", "\\x1d", "\\x1e", "\\x1f", |
| "\\N", "\\_", "\\L", "\\P"] |
| |
| @MAPPING_ESCAPEES_TO_ESCAPED: do => |
| mapping = {} |
| for i in [0...@LIST_ESCAPEES.length] |
| mapping[@LIST_ESCAPEES[i]] = @LIST_ESCAPED[i] |
| return mapping |
| |
| # Characters that would cause a dumped string to require double quoting. |
| @PATTERN_CHARACTERS_TO_ESCAPE: new Pattern '[\\x00-\\x1f]|\xc2\x85|\xc2\xa0|\xe2\x80\xa8|\xe2\x80\xa9' |
| |
| # Other precompiled patterns |
| @PATTERN_MAPPING_ESCAPEES: new Pattern @LIST_ESCAPEES.join('|').split('\\').join('\\\\') |
| @PATTERN_SINGLE_QUOTING: new Pattern '[\\s\'":{}[\\],&*#?]|^[-?|<>=!%@`]' |
| |
| |
| |
| # Determines if a JavaScript value would require double quoting in YAML. |
| # |
| # @param [String] value A JavaScript value value |
| # |
| # @return [Boolean] true if the value would require double quotes. |
| # |
| @requiresDoubleQuoting: (value) -> |
| return @PATTERN_CHARACTERS_TO_ESCAPE.test value |
| |
| |
| # Escapes and surrounds a JavaScript value with double quotes. |
| # |
| # @param [String] value A JavaScript value |
| # |
| # @return [String] The quoted, escaped string |
| # |
| @escapeWithDoubleQuotes: (value) -> |
| result = @PATTERN_MAPPING_ESCAPEES.replace value, (str) => |
| return @MAPPING_ESCAPEES_TO_ESCAPED[str] |
| return '"'+result+'"' |
| |
| |
| # Determines if a JavaScript value would require single quoting in YAML. |
| # |
| # @param [String] value A JavaScript value |
| # |
| # @return [Boolean] true if the value would require single quotes. |
| # |
| @requiresSingleQuoting: (value) -> |
| return @PATTERN_SINGLE_QUOTING.test value |
| |
| |
| # Escapes and surrounds a JavaScript value with single quotes. |
| # |
| # @param [String] value A JavaScript value |
| # |
| # @return [String] The quoted, escaped string |
| # |
| @escapeWithSingleQuotes: (value) -> |
| return "'"+value.replace(/'/g, "''")+"'" |
| |
| |
| module.exports = Escaper |
