def eval_text(c, txt):
if not txt:
return
vsc = get_vs(c)
cvs = vsc.d
txt = textwrap.dedent(txt)
blocks = re.split('\n(?=[^\\s])', txt)
leo_globals = {'c': c, 'p': c.p, 'g': g}
ans = None
dbg = False
redirects = c.config.getBool('valuespace_vs_eval_redirect')
if redirects:
old_stderr = g.stdErrIsRedirected()
old_stdout = g.stdOutIsRedirected()
if not old_stderr:
g.redirectStderr()
if not old_stdout:
g.redirectStdout()
try:
# execute all but the last 'block'
if dbg: print('all but last')
# exec '\n'.join(blocks[:-1]) in leo_globals, c.vs
exec('\n'.join(blocks[:-1]), leo_globals,
cvs) # Compatible with Python 3.x.
all_done = False
except SyntaxError:
# splitting of the last block caused syntax error
try:
# is the whole thing a single expression?
if dbg: print('one expression')
ans = eval(txt, leo_globals, cvs)
except SyntaxError:
if dbg: print('statement block')
# exec txt in leo_globals, c.vs
exec(txt, leo_globals, cvs) # Compatible with Python 3.x.
all_done = True # either way, the last block is used now
if not all_done: # last block still needs using
try:
if dbg: print('final expression')
ans = eval(blocks[-1], leo_globals, cvs)
except SyntaxError:
ans = None
if dbg: print('final statement')
# exec blocks[-1] in leo_globals, c.vs
exec(blocks[-1], leo_globals, cvs) # Compatible with Python 3.x.
if redirects:
if not old_stderr:
g.restoreStderr()
if not old_stdout:
g.restoreStdout()
if ans is None: # see if last block was a simple "var =" assignment
key = blocks[-1].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
if ans is None: # see if whole text was a simple /multi-line/ "var =" assignment
key = blocks[0].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
cvs['_last'] = ans
if ans is not None:
# annoying to echo 'None' to the log during line by line execution
txt = str(ans)
lines = txt.split('\n')
if len(lines) > 10:
txt = '\n'.join(lines[:5] + ['<snip>'] + lines[-5:])
if len(txt) > 500:
txt = txt[:500] + ' <truncated>'
g.es(txt)
return ans
def vs_eval(kwargs):
"""Execute the selected text, if any. Select next line of text.
Tries hard to capture the result of from the last expression in the
selected text::
import datetime
today = datetime.date.today()
will captue the value of ``today`` even though the last line is a
statement, not an expression.
Stores results in ``c.vs['_last']`` for insertion
into body by ``vs-last`` or ``vs-last-pretty``.
Removes common indentation (``textwrap.dedent()``) before executing,
allowing execution of indented code.
``g``, ``c``, and ``p`` are available to executing code, assignments
are made in the ``c.vs`` namespace and persist for the life of ``c``.
"""
c = kwargs['c']
vsc = get_vs(c)
cvs = vsc.d
txt = c.frame.body.getSelectedText()
# select next line ready for next select/send cycle
# copied from .../plugins/leoscreen.py
b = c.frame.body.getAllText()
i = c.frame.body.getInsertPoint()
try:
j = b[i:].index('\n')+i+1
c.frame.body.setSelectionRange(i,j)
except ValueError: # no more \n in text
c.frame.body.setSelectionRange(i,i)
pass
if not txt:
return
txt = textwrap.dedent(txt)
blocks = re.split('\n(?=[^\\s])', txt)
leo_globals = {'c':c, 'p':c.p, 'g':g}
ans = None
dbg = False
redirects = c.config.getBool('valuespace_vs_eval_redirect')
if redirects:
old_stderr = g.stdErrIsRedirected()
old_stdout = g.stdOutIsRedirected()
if not old_stderr:
g.redirectStderr()
if not old_stdout:
g.redirectStdout()
try:
# execute all but the last 'block'
if dbg: print('all but last')
# exec '\n'.join(blocks[:-1]) in leo_globals, c.vs
exec('\n'.join(blocks[:-1]), leo_globals, cvs) # Compatible with Python 3.x.
all_done = False
except SyntaxError:
# splitting of the last block caused syntax error
try:
# is the whole thing a single expression?
if dbg: print('one expression')
ans = eval(txt, leo_globals, cvs)
except SyntaxError:
if dbg: print('statement block')
# exec txt in leo_globals, c.vs
exec(txt, leo_globals, cvs) # Compatible with Python 3.x.
all_done = True # either way, the last block is used now
if not all_done: # last block still needs using
try:
if dbg: print('final expression')
ans = eval(blocks[-1], leo_globals, cvs)
except SyntaxError:
ans = None
if dbg: print('final statement')
# exec blocks[-1] in leo_globals, c.vs
exec(blocks[-1], leo_globals, cvs) # Compatible with Python 3.x.
if redirects:
if not old_stderr:
g.restoreStderr()
if not old_stdout:
g.restoreStdout()
if ans is None: # see if last block was a simple "var =" assignment
key = blocks[-1].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
if ans is None: # see if whole text was a simple /multi-line/ "var =" assignment
key = blocks[0].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
cvs['_last'] = ans
if ans is not None:
# annoying to echo 'None' to the log during line by line execution
txt = str(ans)
lines = txt.split('\n')
if len(lines) > 10:
txt = '\n'.join(lines[:5]+['<snip>']+lines[-5:])
if len(txt) > 500:
txt = txt[:500] + ' <truncated>'
g.es(txt)
def eval_text(c, txt):
if not txt:
return
vsc = get_vs(c)
cvs = vsc.d
txt = textwrap.dedent(txt)
blocks = re.split('\n(?=[^\\s])', txt)
leo_globals = {'c':c, 'p':c.p, 'g':g}
ans = None
dbg = False
redirects = c.config.getBool('valuespace_vs_eval_redirect')
if redirects:
old_stderr = g.stdErrIsRedirected()
old_stdout = g.stdOutIsRedirected()
if not old_stderr:
g.redirectStderr()
if not old_stdout:
g.redirectStdout()
try:
# execute all but the last 'block'
if dbg: print('all but last')
# exec '\n'.join(blocks[:-1]) in leo_globals, c.vs
exec('\n'.join(blocks[:-1]), leo_globals, cvs) # Compatible with Python 3.x.
all_done = False
except SyntaxError:
# splitting of the last block caused syntax error
try:
# is the whole thing a single expression?
if dbg: print('one expression')
ans = eval(txt, leo_globals, cvs)
except SyntaxError:
if dbg: print('statement block')
# exec txt in leo_globals, c.vs
exec(txt, leo_globals, cvs) # Compatible with Python 3.x.
all_done = True # either way, the last block is used now
if not all_done: # last block still needs using
try:
if dbg: print('final expression')
ans = eval(blocks[-1], leo_globals, cvs)
except SyntaxError:
ans = None
if dbg: print('final statement')
# exec blocks[-1] in leo_globals, c.vs
exec(blocks[-1], leo_globals, cvs) # Compatible with Python 3.x.
if redirects:
if not old_stderr:
g.restoreStderr()
if not old_stdout:
g.restoreStdout()
if ans is None: # see if last block was a simple "var =" assignment
key = blocks[-1].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
if ans is None: # see if whole text was a simple /multi-line/ "var =" assignment
key = blocks[0].split('=', 1)[0].strip()
if key in cvs:
ans = cvs[key]
cvs['_last'] = ans
if ans is not None:
# annoying to echo 'None' to the log during line by line execution
txt = str(ans)
lines = txt.split('\n')
if len(lines) > 10:
txt = '\n'.join(lines[:5]+['<snip>']+lines[-5:])
if len(txt) > 500:
txt = txt[:500] + ' <truncated>'
g.es(txt)
return ans