Themes can also be hidden away in other bundles. You have no control over which it is yet upon this choice depends how your grammar will affect the look of a document. The user will probably have selected one of these themes. In TextMate 2, the standard themes are all in the Themes bundle. The rules for how a scope should be colored and styled, however, are to be found, not in the grammar itself, but in themes and also in settings. One of the chief reasons for writing a grammar is syntax coloring - which, like so much else about a grammar, depends on scopes. Here are some git log excerpts: Date: Wed Jan 15 13:59:57 2014 -0800įinally got recursively related match patterns working! (This was mostly because of undocumented things you mustn’t do and things that TextMate can’t do, both of which I tell you about later on this page.) After that, though, it was remarkably smooth sailing, and I was able to finish the entire grammar in a week. It then took me about three weeks of extremely frustrating, difficult work before I got my first two scopes working in the grammar. It took me some weeks just to prepare, collecting information and locating and studying the existing instructions and documentation. Writing a grammar can be a slow business. Having recently managed to write a grammar of my own for the first time, here are some things I learned along the way. Although TextMate has been around for a long time (in computer years) and many language bundles exist, it is startling to find that the process of writing a language grammar remains poorly documented.
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