sine.properties 0.1.0

read/write .properties file in a simple line-oriented format

# Brief

read/write .properties file in line-oriented format
`key=value` per line *through function*.

*the code refers to `java.util.Properties` in Java 1.6.*


# Common Usage

* file I/O:
```python
# input
properties = load(file)
# or update existing dictionary
load(file, properties)

# output
store(file, properties)
```

* custom input:
`class LineReader` read in one key-value data. It skips all comment lines,
blank lines, leading whitespace, and processes multi-line data.
`loadSingle(string)` read each piece of data given above to key-value.
```python
for line in LineReader(file): # each key-value line has no line seperator
key, value = loadSingle(line)
# do something
```

* custom output:
`storeComments(writable, comments, linesep=os.linesep))`
write comment (accept multi-line), can specify the line terminator.
`storeSingle(writable, key, value, sep='=', linesep=os.linesep)`
write one key-value, can specify the seperator and the line terminator.
```python
storeComments(file, 'this is a comment')
storeSingle(file, 'key', 'value')
```


# File Format

normally each line is comment line or a key-value pair.

main features:
* seperate key and value by one of `=`, `:`, ` `, `\t`
* ignore whitespaces leading in a line or around `=` or `:`
* comment line begin with `#` or `!`
* escape unicode by `\uxxxx`
* escape special characters by adding `\`

others:
* data line ends with `\` discard the line break

differences with Java:
* store method will not write datetime comment


# Changelog

#### v0.1.0, 2018-6-7

set up.