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moving print_tokens (the pretty printer) from coffee_script to command_line

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Jeremy Ashkenas 2010-02-24 18:56:32 -05:00
parent b26e577244
commit 2a46e13d33
13 changed files with 49 additions and 46 deletions
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13
lib/coffee-script.js
View file

@ -45,17 +45,4 @@
exports.tree = function tree(code) {
return parser.parse(lexer.tokenize(code));
};
// Pretty-print a token stream.
exports.print_tokens = function print_tokens(tokens) {
var _a, _b, _c, strings, token;
strings = (function() {
_a = []; _b = tokens;
for (_c = 0; _c < _b.length; _c++) {
token = _b[_c];
_a.push('[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']');
}
return _a;
}).call(this);
return puts(strings.join(' '));
};
})();

34
lib/command_line.js
View file

@ -1,11 +1,11 @@
(function(){
var BANNER, SWITCHES, coffee, compile_options, compile_script, compile_scripts, compile_stdio, fs, lint, option_parser, options, optparse, parse_options, path, sources, usage, version, watch_scripts, write_js;
var BANNER, SWITCHES, coffee, compile_options, compile_script, compile_scripts, compile_stdio, fs, lint, option_parser, options, optparse, parse_options, path, print_tokens, sources, usage, version, watch_scripts, write_js;
fs = require('fs');
path = require('path');
coffee = require('coffee-script');
optparse = require('optparse');
BANNER = "coffee compiles CoffeeScript source files into JavaScript.\n\nUsage:\n coffee path/to/script.coffee";
SWITCHES = [['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-r', '--run', 'compile and run a CoffeeScript'], ['-o', '--output [DIR]', 'set the directory for compiled JavaScript'], ['-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'], ['-n', '--no-wrap', 'compile without the top-level function wrapper'], ['-v', '--version', 'display CoffeeScript version'], ['-h', '--help', 'display this help message']];
SWITCHES = [['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-r', '--run', 'compile and run a CoffeeScript'], ['-o', '--output [DIR]', 'set the directory for compiled JavaScript'], ['-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'], ['-n', '--no-wrap', 'compile without the top-level function wrapper'], ['-t', '--tokens', 'print the tokens that the lexer produces'], ['-tr', '--tree', 'print the parse tree that Jison produces'], ['-v', '--version', 'display CoffeeScript version'], ['-h', '--help', 'display this help message']];
options = {};
sources = [];
option_parser = null;
@ -73,26 +73,27 @@
// 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 = function compile_script(source, code) {
var js;
var js, o;
o = options;
try {
if (options.tokens) {
return coffee.print_tokens(coffee.tokenize(code));
} else if (options.tree) {
if (o.tokens) {
return print_tokens(coffee.tokenize(code));
} else if (o.tree) {
return puts(coffee.tree(code).toString());
} else {
js = coffee.compile(code, compile_options());
if (options.run) {
if (o.run) {
return eval(js);
} else if (options.lint) {
} else if (o.lint) {
return lint(js);
} else if (options.print || options.eval) {
} else if (o.print || o.eval) {
return puts(js);
} else {
return write_js(source, js);
}
}
} catch (err) {
if (options.watch) {
if (o.watch) {
return puts(err.message);
} else {
throw err;
@ -162,6 +163,19 @@
jsl.write(js);
return jsl.close();
};
// Pretty-print a token stream.
print_tokens = function print_tokens(tokens) {
var _a, _b, _c, strings, token;
strings = (function() {
_a = []; _b = tokens;
for (_c = 0; _c < _b.length; _c++) {
token = _b[_c];
_a.push('[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']');
}
return _a;
}).call(this);
return puts(strings.join(' '));
};
// Use OptionParser for all the options.
parse_options = function parse_options() {
option_parser = new optparse.OptionParser(SWITCHES, BANNER);

5
src/coffee-script.coffee
View file

@ -38,8 +38,3 @@ exports.tokenize: (code) ->
exports.tree: (code) ->
parser.parse lexer.tokenize code
# Pretty-print a token stream.
exports.print_tokens: (tokens) ->
strings: for token in tokens
'[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']'
puts strings.join(' ')

19
src/command_line.coffee
View file

@ -69,17 +69,18 @@ compile_scripts: ->
# 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) ->
o: options
try
if options.tokens then coffee.print_tokens coffee.tokenize code
else if options.tree then puts coffee.tree(code).toString()
if o.tokens then print_tokens coffee.tokenize code
else if o.tree then puts coffee.tree(code).toString()
else
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
if o.run then eval js
else if o.lint then lint js
else if o.print or o.eval then puts js
else write_js source, js
catch err
if options.watch then puts err.message else throw err
if o.watch then puts err.message else throw err
# Listen for and compile scripts over stdio.
compile_stdio: ->
@ -116,6 +117,12 @@ lint: (js) ->
jsl.write js
jsl.close()
# Pretty-print a token stream.
print_tokens: (tokens) ->
strings: for token in tokens
'[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']'
puts strings.join(' ')
# Use OptionParser for all the options.
parse_options: ->
option_parser: new optparse.OptionParser SWITCHES, BANNER