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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,111 +1,147 @@ | ||
| var spawn = require('child_process').spawn | ||
| , path = require('path') | ||
| , Stream = require('stream').Stream | ||
|
|
||
| , defaultFormat = 'html' | ||
| , defaultLang = 'js' | ||
| , defaultEncoding = 'utf8' | ||
|
|
||
| , fromString = function (exec, code, callback) { | ||
| var stdout = [] | ||
| , stderr = '' | ||
| , ec = 0 | ||
| , exitClose = function () { | ||
| if (++ec < 2) return | ||
|
|
||
| var buf = new Buffer(stdout.reduce(function (p, c) { return p + c.length }, 0)) | ||
| , i = 0 | ||
|
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| stdout.forEach(function (s) { | ||
| s.copy(buf, i, 0, s.length) | ||
| i += s.length | ||
| }) | ||
|
|
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| callback(null, buf) | ||
| } | ||
|
|
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| exec.stdout.on('data', function (data) { | ||
| stdout.push(data) | ||
| }) | ||
|
|
||
| exec.stderr.on('data', function (data) { | ||
| stderr += data.toString() | ||
| }) | ||
|
|
||
| exec.on('exit', function (code) { | ||
| if (code !== 0) { | ||
| ec = -1 | ||
| return callback('Error: ' + stderr) | ||
| } | ||
| exitClose() | ||
| }) | ||
| exec.on('close', exitClose) | ||
|
|
||
| exec.stdin.write(code) | ||
| exec.stdin.end() | ||
| } | ||
|
|
||
| , fromStream = function (exec) { | ||
| var stream = new Stream() | ||
| , stderr = '' | ||
|
|
||
| stream.writable = true | ||
| stream.readable = true | ||
|
|
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| exec.stdout.on('data', function (data) { | ||
| stream.emit('data', data) | ||
| }) | ||
|
|
||
| exec.stderr.on('data', function (data) { | ||
| stderr += data.toString() | ||
| }) | ||
|
|
||
| exec.on('exit', function (code) { | ||
| if (code !== 0) { | ||
| stream.emit('error', stderr) | ||
| } else { | ||
| stream.emit('end') | ||
| } | ||
| }) | ||
|
|
||
| stream.write = function (data) { | ||
| exec.stdin.write(data) | ||
| const spawn = require('child_process').spawn | ||
| , exec = require('child_process').exec | ||
| , path = require('path') | ||
| , fs = require('fs') | ||
| , PassThrough = require('readable-stream/passthrough') | ||
| , mkdirp = require('mkdirp') | ||
| , bl = require('bl') | ||
| , through2 = require('through2') | ||
|
|
||
| , confDir = path.join(process.env.HOME || process.env.USERPROFILE, '.config') | ||
| , confFile = path.join(confDir, 'node-pygmentize-bundled.json') | ||
|
|
||
| , defaultFormat = 'html' | ||
| , defaultLang = 'js' | ||
| , defaultEncoding = 'utf8' | ||
|
|
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| var pythonVersions | ||
|
|
||
| function fromString (child, code, callback) { | ||
| var stdout = bl() | ||
| , stderr = bl() | ||
| , ec = 0 | ||
| , exitClose = function () { | ||
| if (++ec < 2) | ||
| return | ||
|
|
||
| callback(null, stdout.slice()) | ||
| } | ||
|
|
||
| stream.end = function () { | ||
| exec.stdin.end() | ||
| } | ||
| child.stdout.pipe(stdout) | ||
| child.stderr.pipe(stderr) | ||
|
|
||
| stream.destroy = function () { | ||
| stream.emit('close') | ||
| } | ||
|
|
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| return stream | ||
| } | ||
|
|
||
| , pygmentize = function (options, code, callback) { | ||
| options = options || {} | ||
|
|
||
| var execArgs = [ | ||
| '-f', options.format || defaultFormat | ||
| , '-l', options.lang || defaultLang | ||
| , '-P', 'encoding=' + (options.encoding || defaultEncoding) | ||
| ] | ||
|
|
||
| if (options.options) { | ||
| for (var option in options.options) { | ||
| execArgs.push('-P', option + '=' + options.options[option]) | ||
| } | ||
| } | ||
|
|
||
| var exec = spawn( | ||
| typeof options.python == 'string' ? options.python : 'python' | ||
| , [ path.join(__dirname, 'vendor/pygments/pygmentize') ].concat(execArgs) | ||
| ) | ||
|
|
||
| return typeof code == 'string' && typeof callback == 'function' | ||
| ? fromString(exec, code, callback) | ||
| : fromStream(exec) | ||
| child.on('exit', function (code) { | ||
| if (code !== 0) { | ||
| ec = -1 | ||
| return callback('Error: ' + stderr) | ||
| } | ||
| exitClose() | ||
| }) | ||
| child.on('close', exitClose) | ||
|
|
||
| child.stdin.write(code) | ||
| child.stdin.end() | ||
| } | ||
|
|
||
| function fromStream (retStream, intStream, child) { | ||
| var stderr = bl() | ||
| , outStream = through2(function (chunk, enc, callback) { | ||
| retStream.__write(chunk, enc, callback) | ||
| }) | ||
|
|
||
| module.exports = pygmentize | ||
| intStream.pipe(child.stdin) | ||
| child.stdout.pipe(outStream) | ||
| child.stderr.pipe(stderr) | ||
|
|
||
| child.on('exit', function (code) { | ||
| if (code !== 0) | ||
| retStream.emit('error', stderr.toString()) | ||
| retStream.__end() | ||
| }) | ||
| } | ||
|
|
||
| function pygmentize (options, code, callback) { | ||
| options = options || {} | ||
|
|
||
| var execArgs = [ | ||
| '-f', options.format || defaultFormat | ||
| , '-l', options.lang || defaultLang | ||
| , '-P', 'encoding=' + (options.encoding || defaultEncoding) | ||
| ] | ||
| , toString = typeof code == 'string' && typeof callback == 'function' | ||
| , retStream = !toString && through2() | ||
| , intStream = !toString && through2() | ||
|
|
||
| if (typeof options.options == 'object') { | ||
| Object.keys(options.options).forEach(function (key) { | ||
| execArgs.push('-P', key + '=' + options.options[key]) | ||
| }) | ||
| } | ||
|
|
||
| spawnPygmentize(options, execArgs, function (err, child) { | ||
| if (err) | ||
| return callback(err) | ||
| if (toString) | ||
| return fromString(child, code, callback) | ||
| fromStream(retStream, intStream, child) | ||
| }) | ||
|
|
||
| if (retStream) { | ||
| retStream.__write = retStream.write | ||
| retStream.write = intStream.write.bind(intStream) | ||
| retStream.__end = retStream.end | ||
| retStream.end = intStream.end.bind(intStream) | ||
| } | ||
|
|
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| return retStream | ||
| } | ||
|
|
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| function spawnPygmentize (options, execArgs, callback) { | ||
| var python = typeof options.python == 'string' ? options.python : 'python' | ||
|
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| pythonVersion(python, function (err, version) { | ||
| if (err) | ||
| return callback(err) | ||
| if (version != 2 && version != 3) | ||
| return callback(new Error('Unsupported Python version: ' + version)) | ||
|
|
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| var pyg = path.join( | ||
| __dirname | ||
| , 'vendor/pygments' | ||
| , version == 2 ? 'build-2.7' : 'build-3.3' | ||
| , 'pygmentize' | ||
| ) | ||
|
|
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| callback(null, spawn(python, [ pyg ].concat(execArgs))) | ||
| }) | ||
| } | ||
|
|
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| function pythonVersion (python, callback) { | ||
| if (!pythonVersions) { | ||
| try { | ||
| pythonVersions = require(confFile) | ||
| } catch (e) {} | ||
| if (typeof pythonVersions != 'object') | ||
| pythonVersions = {} | ||
| } | ||
|
|
||
| if (pythonVersions[python]) | ||
| return callback(null, pythonVersions[python]) | ||
|
|
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| exec(python + ' -V', function (err, stdout, stderr) { | ||
| if (err) | ||
| return callback(err) | ||
|
|
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| var m = stderr.toString().match(/^Python (\d)[.\d]+/i) | ||
| if (!m) | ||
| return callback(new Error('cannot determine Python version: [' + stderr.toString() + ']')) | ||
|
|
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| pythonVersions[python] = +m[1] | ||
|
|
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| mkdirp.sync(confDir) | ||
| fs.writeFileSync(confFile, JSON.stringify(pythonVersions), 'utf8') | ||
| return callback(null, +m[1]) | ||
| }) | ||
| } | ||
|
|
||
| module.exports = pygmentize |
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