Autotools syntax highlighting for VSCode

The extension is available on both vsce, and on ovsx.

This VSCode extension is a fork of the GitHub project sublime_autotools. It includes syntax highlighting for Autoconf M4 (.m4, configure.ac...) and Automake files (e.g., Makefile.am). This extension uses the vscode's own Makefile syntax support for hghlighting makefile things in automake files. I chose to fork the sublime project in order to have an easy way of updating vscode_autotools (which is only a matter of git merge).

Note that the sublime fork also has a Makefile2 (an alternate grammar file for Makefiles) but the standard vscode's Makefile support works much better (actually, the sublime's one is kind of buggy).

See [DEVELOPMENT.md][] for more information on how to debug and improve vscode_autotools.

Changelog

v0.2.0 (5 March 2023)

Since ptomato/sublime_autotools has moved to a YAML-based grammar and that most of the bugs that were fixed in my fork have been ported back to ptomato/sublime_autotools, I decided to revert to ptomato/sublime_autotools's YAML grammar. This means that the grammar may change a bit. Please let me know if it does.

v0.1.0

• complete PKG macro family. Change proposed by jannick0 (initially proposed at https://github.com/ptomato/sublime_autotools/pull/9)

v0.0.9

• Add AC_CONFIG_MACRO_DIRS provided by automake which surprisingly exists together with autoconf's AC_CONFIG_MACRO_DIR. Change proposed by jannick0.
• (internal) add the npm start -- --json feature that allows people more familiar with json to generate tmLanguage from the json file instead of the yaml one.

v0.0.7

• Autoconf M4 (configure.ac): fix " not being properly escaped in a string. Note for now, that variables won't (for some reason) be highlighted in strings. I couldn't find why.

v0.0.6

• Automake: fix comments not being highlighted when it starts at the beginning of a line and is interleaved with a recipe.

v0.0.5

• Automake grammar: fixed bug with foo: $(VAR:%.h=%.h)
• Makefile2: re-include it into the extension. The Automake grammar is actually working better using makefile2.
• Many small improvements to Makefile2 and Automake, e.g., $(if a,b) properly colored.
• Moved from JSON grammar files to YAML.

v0.0.4

• Use vscode's default Makefile syntax grammar file instead of the sublime's one (Makefile2). This is because Makefile2 was buggy and vscode's one works just fine.

v0.0.3

• Automake: fix a bug with assigments followed by a comment
• added 'npm start'for rebuilding the tmLanguage files from the JSON-tmLanguage files. You may observe some changes in grammar because of this, please tell me if it is the case!

v0.0.2

• Fixed the VSCode-version of Makefile that was shadowed by Makefile2, thus making it impossible to select the VSCode-provided Makefile highlighting.
• Fixed line comments (# instead of //)
• Removed block comments (block comments are not available in makefiles)
• added an icon, because we all kind of like nice icons (Twitter, CC 3.0 BY)

v0.0.1

• Initial release. I disabled the Makefile2 part that was developped in the upstream project (sublime_autotools) because the Makefile support of vscode seems better (but I didn't really dig much to understand why).

Note: For Autoconf M4 macros, the arguments may need to be highlighted in several different ways; some are shell code, some are plain text, and a few are C code. There are definitions for the builtin ones, but custom macros may not be highlighted correctly.