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adding compilation over stdin/stdout. Use --stdio or -s, and pipe away.

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This commit is contained in:
Jeremy Ashkenas
2010-02-24 18:18:29 -05:00
parent aba8cb1b08
commit 9f8710b631
4 changed files with 57 additions and 27 deletions
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33
src/command_line.coffee
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@@ -17,6 +17,7 @@ SWITCHES: [
['-w', '--watch', 'watch scripts for changes, and recompile']
['-p', '--print', 'print the compiled JavaScript to stdout']
['-l', '--lint', 'pipe the compiled JavaScript through JSLint']
['-s', '--stdio', 'listen for and compile scripts over stdio']
['-e', '--eval', 'compile a string from the command line']
['-t', '--tokens', 'print the tokens that the lexer produces']
['-tr','--tree', 'print the parse tree that Jison produces']
@@ -35,6 +36,7 @@ exports.run: ->
return usage() if options.help
return version() if options.version
return require 'repl' if options.interactive
return compile_stdio() if options.stdio
return compile_script 'unknown', sources[0] if options.eval
return usage() unless sources.length
separator: sources.indexOf '--'
@@ -64,23 +66,29 @@ compile_scripts: ->
fs.readFile source, (err, code) -> compile_script(source, code)
compile(source) for source in sources
# Compile a single source script, containing the given code, according to the
# requested options. Both compile_scripts and watch_scripts share this method.
compile_script: (source, code) ->
opts: options
o: if opts['no-wrap'] then {no_wrap: true} else {}
try
if opts.tokens then coffee.print_tokens coffee.tokenize code
else if opts.tree then puts coffee.tree(code).toString()
if options.tokens then coffee.print_tokens coffee.tokenize code
else if options.tree then puts coffee.tree(code).toString()
else
js: coffee.compile code, o
if opts.run then eval js
else if opts.lint then lint js
else if opts.print or opts.eval then puts js
else write_js source, js
js: coffee.compile code, compile_options()
if options.run then eval js
else if options.lint then lint js
else if options.print or options.eval then puts js
else write_js source, js
catch err
if opts.watch then puts err.message else throw err
if options.watch then puts err.message else throw err
# Listen for and compile scripts over stdio.
compile_stdio: ->
code: ''
process.stdio.open()
process.stdio.addListener 'data', (string) ->
code += string if string
process.stdio.addListener 'close', ->
process.stdio.write coffee.compile code, compile_options()
# Watch a list of source CoffeeScript files, recompiling them every time the
# files are updated.
@@ -114,3 +122,6 @@ parse_options: ->
options: option_parser.parse(process.ARGV)
sources: options.arguments[2...options.arguments.length]
# The options to pass to the CoffeeScript compiler.
compile_options: ->
if options['no-wrap'] then {no_wrap: true} else {}