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Kovid Goyal 2015-06-20 13:21:49 +05:30
parent d5a02c0ec7
commit 9f7c0f3911
1 changed files with 18 additions and 14 deletions
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32
src/calibre/utils/rapydscript.py
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@ -6,11 +6,12 @@ from __future__ import (unicode_literals, division, absolute_import,
__license__ = 'GPL v3' __license__ = 'GPL v3'
__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>' __copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
import os, json, sys, errno, re import os, json, sys, errno, re, atexit
from threading import local from threading import local
from functools import partial
from calibre.constants import cache_dir, iswindows
from calibre.utils.terminal import ANSIStream, colored from calibre.utils.terminal import ANSIStream, colored
from calibre.constants import cache_dir
COMPILER_PATH = 'rapydscript/compiler.js' COMPILER_PATH = 'rapydscript/compiler.js'
@ -172,11 +173,13 @@ class Repl(object):
LINE_CONTINUATION_CHARS = r'\:' LINE_CONTINUATION_CHARS = r'\:'
def __init__(self, ps1=colored('>>> ', fg='green'), ps2=colored('... ', fg='green'), show_js=False, libdir=None): def __init__(self, ps1='>>> ', ps2='... ', show_js=False, libdir=None):
from duktape import Context, undefined, JSError, to_python from duktape import Context, undefined, JSError, to_python
self.lines = [] self.lines = []
self.libdir = libdir self.libdir = libdir
self.ps1, self.ps2 = ps1, ps2 self.ps1, self.ps2 = ps1, ps2
if not iswindows:
self.ps1, self.ps2 = colored(self.ps1, fg='green'), colored(self.ps2, fg='green')
self.ctx = Context() self.ctx = Context()
self.ctx.g.show_js = show_js self.ctx.g.show_js = show_js
self.undefined = undefined self.undefined = undefined
@ -188,7 +191,7 @@ class Repl(object):
self.readline = readline self.readline = readline
except ImportError: except ImportError:
pass pass
self.output = ANSIStream(sys.stderr) self.output = ANSIStream(sys.stdout)
def resetbuffer(self): def resetbuffer(self):
self.lines = [] self.lines = []
@ -207,12 +210,15 @@ class Repl(object):
self.prints(colored('Welcome to the RapydScript REPL! Press Ctrl+D to quit.\n' self.prints(colored('Welcome to the RapydScript REPL! Press Ctrl+D to quit.\n'
'Use show_js = True to have the REPL print out the' 'Use show_js = True to have the REPL print out the'
' compiled javascript before executing it.\n', bold=True)) ' compiled javascript before executing it.\n', bold=True))
history = os.path.join(cache_dir(), 'pyj-repl-history.txt') if hasattr(self, 'readline'):
try: history = os.path.join(cache_dir(), 'pyj-repl-history.txt')
self.readline.read_history_file(history) self.readline.parse_and_bind("tab: complete")
except EnvironmentError as e: try:
if e.errno != errno.ENOENT: self.readline.read_history_file(history)
raise except EnvironmentError as e:
if e.errno != errno.ENOENT:
raise
atexit.register(partial(self.readline.write_history_file, history))
more = False more = False
while True: while True:
try: try:
@ -224,8 +230,7 @@ class Repl(object):
prompt += lw prompt += lw
try: try:
self.prints(prompt, end='') line = raw_input(prompt).decode(self.enc)
line = raw_input().decode(self.enc)
except EOFError: except EOFError:
self.prints() self.prints()
break break
@ -238,7 +243,6 @@ class Repl(object):
self.prints("\nKeyboardInterrupt") self.prints("\nKeyboardInterrupt")
self.resetbuffer() self.resetbuffer()
more = False more = False
self.readline.write_history_file(history)
def push(self, line): def push(self, line):
self.lines.append(line) self.lines.append(line)
@ -274,7 +278,7 @@ class Repl(object):
if self.ctx.g.show_js: if self.ctx.g.show_js:
self.prints(colored('Compiled Javascript:', fg='green'), js, sep='\n') self.prints(colored('Compiled Javascript:', fg='green'), js, sep='\n')
try: try:
result = self.ctx.eval(js) result = self.ctx.eval(js, fname='line')
except self.JSError as e: except self.JSError as e:
self.prints(e.message) self.prints(e.message)
except Exception as e: except Exception as e: