Google Summer of Code/2016/AcceptedProjects/Vespucci

This page documents my GSoC 2016 project to create a MapCSS parser for Vespucci compatible with JOSM MapCSS files.

I have spend the 2 first week on improving my knowledge about android sdk, java-cc parser generator and about JOSM MapCSS implementation.

I have start working on implement a simple lexical analyzer with a few MapCSSrules out of the box.

Each MapCSS rules has two parts:

One or more selector, used to determine to which map elements the statement applies.
One or more declaration, used to determine the style which should be applied to matching elements.

So i will use this parsing algorithm :

- for each rule: if the selector applies, set the properties from the { } block in a list.

- analyze the final list of properties and generate styles from it.

This week i have work on parsing the MapCSS declaration, that determine the style of each matching elements.

I work on a first draft of the main MapCSS parser grammar.

I made some test with the MapCSS selector, used to determine to which map elements the statement applies.

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