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@@ -1,333 +1,336 b'' | |||||
1 | import abc |
|
1 | import abc | |
2 | import re |
|
2 | import re | |
3 | from StringIO import StringIO |
|
3 | from StringIO import StringIO | |
4 | import tokenize |
|
4 | import tokenize | |
5 |
|
5 | |||
6 | from IPython.core.splitinput import split_user_input, LineInfo |
|
6 | from IPython.core.splitinput import split_user_input, LineInfo | |
7 |
|
7 | |||
8 | #----------------------------------------------------------------------------- |
|
8 | #----------------------------------------------------------------------------- | |
9 | # Globals |
|
9 | # Globals | |
10 | #----------------------------------------------------------------------------- |
|
10 | #----------------------------------------------------------------------------- | |
11 |
|
11 | |||
12 | # The escape sequences that define the syntax transformations IPython will |
|
12 | # The escape sequences that define the syntax transformations IPython will | |
13 | # apply to user input. These can NOT be just changed here: many regular |
|
13 | # apply to user input. These can NOT be just changed here: many regular | |
14 | # expressions and other parts of the code may use their hardcoded values, and |
|
14 | # expressions and other parts of the code may use their hardcoded values, and | |
15 | # for all intents and purposes they constitute the 'IPython syntax', so they |
|
15 | # for all intents and purposes they constitute the 'IPython syntax', so they | |
16 | # should be considered fixed. |
|
16 | # should be considered fixed. | |
17 |
|
17 | |||
18 | ESC_SHELL = '!' # Send line to underlying system shell |
|
18 | ESC_SHELL = '!' # Send line to underlying system shell | |
19 | ESC_SH_CAP = '!!' # Send line to system shell and capture output |
|
19 | ESC_SH_CAP = '!!' # Send line to system shell and capture output | |
20 | ESC_HELP = '?' # Find information about object |
|
20 | ESC_HELP = '?' # Find information about object | |
21 | ESC_HELP2 = '??' # Find extra-detailed information about object |
|
21 | ESC_HELP2 = '??' # Find extra-detailed information about object | |
22 | ESC_MAGIC = '%' # Call magic function |
|
22 | ESC_MAGIC = '%' # Call magic function | |
23 | ESC_MAGIC2 = '%%' # Call cell-magic function |
|
23 | ESC_MAGIC2 = '%%' # Call cell-magic function | |
24 | ESC_QUOTE = ',' # Split args on whitespace, quote each as string and call |
|
24 | ESC_QUOTE = ',' # Split args on whitespace, quote each as string and call | |
25 | ESC_QUOTE2 = ';' # Quote all args as a single string, call |
|
25 | ESC_QUOTE2 = ';' # Quote all args as a single string, call | |
26 | ESC_PAREN = '/' # Call first argument with rest of line as arguments |
|
26 | ESC_PAREN = '/' # Call first argument with rest of line as arguments | |
27 |
|
27 | |||
28 | ESC_SEQUENCES = [ESC_SHELL, ESC_SH_CAP, ESC_HELP ,\ |
|
28 | ESC_SEQUENCES = [ESC_SHELL, ESC_SH_CAP, ESC_HELP ,\ | |
29 | ESC_HELP2, ESC_MAGIC, ESC_MAGIC2,\ |
|
29 | ESC_HELP2, ESC_MAGIC, ESC_MAGIC2,\ | |
30 | ESC_QUOTE, ESC_QUOTE2, ESC_PAREN ] |
|
30 | ESC_QUOTE, ESC_QUOTE2, ESC_PAREN ] | |
31 |
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31 | |||
32 |
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32 | |||
33 |
|
||||
34 | class InputTransformer(object): |
|
33 | class InputTransformer(object): | |
35 | __metaclass__ = abc.ABCMeta |
|
34 | __metaclass__ = abc.ABCMeta | |
36 |
|
35 | |||
37 | @abc.abstractmethod |
|
36 | @abc.abstractmethod | |
38 | def push(self, line): |
|
37 | def push(self, line): | |
39 | pass |
|
38 | pass | |
40 |
|
39 | |||
41 | @abc.abstractmethod |
|
40 | @abc.abstractmethod | |
42 | def reset(self): |
|
41 | def reset(self): | |
43 | pass |
|
42 | pass | |
44 |
|
43 | |||
45 | look_in_string = False |
|
44 | look_in_string = False | |
46 |
|
45 | |||
47 | def stateless_input_transformer(func): |
|
46 | def stateless_input_transformer(func): | |
48 | class StatelessInputTransformer(InputTransformer): |
|
47 | class StatelessInputTransformer(InputTransformer): | |
49 | """Decorator for a stateless input transformer implemented as a function.""" |
|
48 | """Decorator for a stateless input transformer implemented as a function.""" | |
50 | def __init__(self): |
|
49 | def __init__(self): | |
51 | self.func = func |
|
50 | self.func = func | |
52 |
|
51 | |||
53 | def push(self, line): |
|
52 | def push(self, line): | |
54 | return self.func(line) |
|
53 | return self.func(line) | |
55 |
|
54 | |||
56 | def reset(self): |
|
55 | def reset(self): | |
57 | pass |
|
56 | pass | |
58 |
|
57 | |||
59 | return StatelessInputTransformer |
|
58 | return StatelessInputTransformer | |
60 |
|
59 | |||
61 | def coroutine_input_transformer(coro): |
|
60 | def coroutine_input_transformer(coro): | |
62 | class CoroutineInputTransformer(InputTransformer): |
|
61 | class CoroutineInputTransformer(InputTransformer): | |
63 | def __init__(self): |
|
62 | def __init__(self): | |
64 | # Prime it |
|
63 | # Prime it | |
65 | self.coro = coro() |
|
64 | self.coro = coro() | |
66 | next(self.coro) |
|
65 | next(self.coro) | |
67 |
|
66 | |||
68 | def push(self, line): |
|
67 | def push(self, line): | |
69 | return self.coro.send(line) |
|
68 | return self.coro.send(line) | |
70 |
|
69 | |||
71 | def reset(self): |
|
70 | def reset(self): | |
72 | return self.coro.send(None) |
|
71 | return self.coro.send(None) | |
73 |
|
72 | |||
74 | return CoroutineInputTransformer |
|
73 | return CoroutineInputTransformer | |
75 |
|
74 | |||
76 |
|
75 | |||
77 | # Utilities |
|
76 | # Utilities | |
78 | def _make_help_call(target, esc, lspace, next_input=None): |
|
77 | def _make_help_call(target, esc, lspace, next_input=None): | |
79 | """Prepares a pinfo(2)/psearch call from a target name and the escape |
|
78 | """Prepares a pinfo(2)/psearch call from a target name and the escape | |
80 | (i.e. ? or ??)""" |
|
79 | (i.e. ? or ??)""" | |
81 | method = 'pinfo2' if esc == '??' \ |
|
80 | method = 'pinfo2' if esc == '??' \ | |
82 | else 'psearch' if '*' in target \ |
|
81 | else 'psearch' if '*' in target \ | |
83 | else 'pinfo' |
|
82 | else 'pinfo' | |
84 | arg = " ".join([method, target]) |
|
83 | arg = " ".join([method, target]) | |
85 | if next_input is None: |
|
84 | if next_input is None: | |
86 | return '%sget_ipython().magic(%r)' % (lspace, arg) |
|
85 | return '%sget_ipython().magic(%r)' % (lspace, arg) | |
87 | else: |
|
86 | else: | |
88 | return '%sget_ipython().set_next_input(%r);get_ipython().magic(%r)' % \ |
|
87 | return '%sget_ipython().set_next_input(%r);get_ipython().magic(%r)' % \ | |
89 | (lspace, next_input, arg) |
|
88 | (lspace, next_input, arg) | |
90 |
|
89 | |||
91 | @coroutine_input_transformer |
|
90 | @coroutine_input_transformer | |
92 | def escaped_transformer(): |
|
91 | def escaped_transformer(): | |
93 | """Translate lines beginning with one of IPython's escape characters.""" |
|
92 | """Translate lines beginning with one of IPython's escape characters.""" | |
94 |
|
93 | |||
95 | # These define the transformations for the different escape characters. |
|
94 | # These define the transformations for the different escape characters. | |
96 | def _tr_system(line_info): |
|
95 | def _tr_system(line_info): | |
97 | "Translate lines escaped with: !" |
|
96 | "Translate lines escaped with: !" | |
98 | cmd = line_info.line.lstrip().lstrip(ESC_SHELL) |
|
97 | cmd = line_info.line.lstrip().lstrip(ESC_SHELL) | |
99 | return '%sget_ipython().system(%r)' % (line_info.pre, cmd) |
|
98 | return '%sget_ipython().system(%r)' % (line_info.pre, cmd) | |
100 |
|
99 | |||
101 | def _tr_system2(line_info): |
|
100 | def _tr_system2(line_info): | |
102 | "Translate lines escaped with: !!" |
|
101 | "Translate lines escaped with: !!" | |
103 | cmd = line_info.line.lstrip()[2:] |
|
102 | cmd = line_info.line.lstrip()[2:] | |
104 | return '%sget_ipython().getoutput(%r)' % (line_info.pre, cmd) |
|
103 | return '%sget_ipython().getoutput(%r)' % (line_info.pre, cmd) | |
105 |
|
104 | |||
106 | def _tr_help(line_info): |
|
105 | def _tr_help(line_info): | |
107 | "Translate lines escaped with: ?/??" |
|
106 | "Translate lines escaped with: ?/??" | |
108 | # A naked help line should just fire the intro help screen |
|
107 | # A naked help line should just fire the intro help screen | |
109 | if not line_info.line[1:]: |
|
108 | if not line_info.line[1:]: | |
110 | return 'get_ipython().show_usage()' |
|
109 | return 'get_ipython().show_usage()' | |
111 |
|
110 | |||
112 | return _make_help_call(line_info.ifun, line_info.esc, line_info.pre) |
|
111 | return _make_help_call(line_info.ifun, line_info.esc, line_info.pre) | |
113 |
|
112 | |||
114 | def _tr_magic(line_info): |
|
113 | def _tr_magic(line_info): | |
115 | "Translate lines escaped with: %" |
|
114 | "Translate lines escaped with: %" | |
116 | tpl = '%sget_ipython().magic(%r)' |
|
115 | tpl = '%sget_ipython().magic(%r)' | |
117 | cmd = ' '.join([line_info.ifun, line_info.the_rest]).strip() |
|
116 | cmd = ' '.join([line_info.ifun, line_info.the_rest]).strip() | |
118 | return tpl % (line_info.pre, cmd) |
|
117 | return tpl % (line_info.pre, cmd) | |
119 |
|
118 | |||
120 | def _tr_quote(line_info): |
|
119 | def _tr_quote(line_info): | |
121 | "Translate lines escaped with: ," |
|
120 | "Translate lines escaped with: ," | |
122 | return '%s%s("%s")' % (line_info.pre, line_info.ifun, |
|
121 | return '%s%s("%s")' % (line_info.pre, line_info.ifun, | |
123 | '", "'.join(line_info.the_rest.split()) ) |
|
122 | '", "'.join(line_info.the_rest.split()) ) | |
124 |
|
123 | |||
125 | def _tr_quote2(line_info): |
|
124 | def _tr_quote2(line_info): | |
126 | "Translate lines escaped with: ;" |
|
125 | "Translate lines escaped with: ;" | |
127 | return '%s%s("%s")' % (line_info.pre, line_info.ifun, |
|
126 | return '%s%s("%s")' % (line_info.pre, line_info.ifun, | |
128 | line_info.the_rest) |
|
127 | line_info.the_rest) | |
129 |
|
128 | |||
130 | def _tr_paren(line_info): |
|
129 | def _tr_paren(line_info): | |
131 | "Translate lines escaped with: /" |
|
130 | "Translate lines escaped with: /" | |
132 | return '%s%s(%s)' % (line_info.pre, line_info.ifun, |
|
131 | return '%s%s(%s)' % (line_info.pre, line_info.ifun, | |
133 | ", ".join(line_info.the_rest.split())) |
|
132 | ", ".join(line_info.the_rest.split())) | |
134 |
|
133 | |||
135 | tr = { ESC_SHELL : _tr_system, |
|
134 | tr = { ESC_SHELL : _tr_system, | |
136 | ESC_SH_CAP : _tr_system2, |
|
135 | ESC_SH_CAP : _tr_system2, | |
137 | ESC_HELP : _tr_help, |
|
136 | ESC_HELP : _tr_help, | |
138 | ESC_HELP2 : _tr_help, |
|
137 | ESC_HELP2 : _tr_help, | |
139 | ESC_MAGIC : _tr_magic, |
|
138 | ESC_MAGIC : _tr_magic, | |
140 | ESC_QUOTE : _tr_quote, |
|
139 | ESC_QUOTE : _tr_quote, | |
141 | ESC_QUOTE2 : _tr_quote2, |
|
140 | ESC_QUOTE2 : _tr_quote2, | |
142 | ESC_PAREN : _tr_paren } |
|
141 | ESC_PAREN : _tr_paren } | |
143 |
|
142 | |||
144 | line = '' |
|
143 | line = '' | |
145 | while True: |
|
144 | while True: | |
146 | line = (yield line) |
|
145 | line = (yield line) | |
147 | if not line or line.isspace(): |
|
146 | if not line or line.isspace(): | |
148 | continue |
|
147 | continue | |
149 | lineinf = LineInfo(line) |
|
148 | lineinf = LineInfo(line) | |
150 | if lineinf.esc not in tr: |
|
149 | if lineinf.esc not in tr: | |
151 | continue |
|
150 | continue | |
152 |
|
151 | |||
153 | parts = [] |
|
152 | parts = [] | |
154 | while line is not None: |
|
153 | while line is not None: | |
155 | parts.append(line.rstrip('\\')) |
|
154 | parts.append(line.rstrip('\\')) | |
156 | if not line.endswith('\\'): |
|
155 | if not line.endswith('\\'): | |
157 | break |
|
156 | break | |
158 | line = (yield None) |
|
157 | line = (yield None) | |
159 |
|
158 | |||
160 | # Output |
|
159 | # Output | |
161 | lineinf = LineInfo(' '.join(parts)) |
|
160 | lineinf = LineInfo(' '.join(parts)) | |
162 | line = tr[lineinf.esc](lineinf) |
|
161 | line = tr[lineinf.esc](lineinf) | |
163 |
|
162 | |||
164 | _initial_space_re = re.compile(r'\s*') |
|
163 | _initial_space_re = re.compile(r'\s*') | |
165 |
|
164 | |||
166 | _help_end_re = re.compile(r"""(%{0,2} |
|
165 | _help_end_re = re.compile(r"""(%{0,2} | |
167 | [a-zA-Z_*][\w*]* # Variable name |
|
166 | [a-zA-Z_*][\w*]* # Variable name | |
168 | (\.[a-zA-Z_*][\w*]*)* # .etc.etc |
|
167 | (\.[a-zA-Z_*][\w*]*)* # .etc.etc | |
169 | ) |
|
168 | ) | |
170 | (\?\??)$ # ? or ??""", |
|
169 | (\?\??)$ # ? or ??""", | |
171 | re.VERBOSE) |
|
170 | re.VERBOSE) | |
172 |
|
171 | |||
173 | def has_comment(src): |
|
172 | def has_comment(src): | |
174 | """Indicate whether an input line has (i.e. ends in, or is) a comment. |
|
173 | """Indicate whether an input line has (i.e. ends in, or is) a comment. | |
175 |
|
174 | |||
176 | This uses tokenize, so it can distinguish comments from # inside strings. |
|
175 | This uses tokenize, so it can distinguish comments from # inside strings. | |
177 |
|
176 | |||
178 | Parameters |
|
177 | Parameters | |
179 | ---------- |
|
178 | ---------- | |
180 | src : string |
|
179 | src : string | |
181 | A single line input string. |
|
180 | A single line input string. | |
182 |
|
181 | |||
183 | Returns |
|
182 | Returns | |
184 | ------- |
|
183 | ------- | |
185 | Boolean: True if source has a comment. |
|
184 | Boolean: True if source has a comment. | |
186 | """ |
|
185 | """ | |
187 | readline = StringIO(src).readline |
|
186 | readline = StringIO(src).readline | |
188 | toktypes = set() |
|
187 | toktypes = set() | |
189 | try: |
|
188 | try: | |
190 | for t in tokenize.generate_tokens(readline): |
|
189 | for t in tokenize.generate_tokens(readline): | |
191 | toktypes.add(t[0]) |
|
190 | toktypes.add(t[0]) | |
192 | except tokenize.TokenError: |
|
191 | except tokenize.TokenError: | |
193 | pass |
|
192 | pass | |
194 | return(tokenize.COMMENT in toktypes) |
|
193 | return(tokenize.COMMENT in toktypes) | |
195 |
|
194 | |||
|
195 | ||||
196 | @stateless_input_transformer |
|
196 | @stateless_input_transformer | |
197 | def help_end(line): |
|
197 | def help_end(line): | |
198 | """Translate lines with ?/?? at the end""" |
|
198 | """Translate lines with ?/?? at the end""" | |
199 | m = _help_end_re.search(line) |
|
199 | m = _help_end_re.search(line) | |
200 | if m is None or has_comment(line): |
|
200 | if m is None or has_comment(line): | |
201 | return line |
|
201 | return line | |
202 | target = m.group(1) |
|
202 | target = m.group(1) | |
203 | esc = m.group(3) |
|
203 | esc = m.group(3) | |
204 | lspace = _initial_space_re.match(line).group(0) |
|
204 | lspace = _initial_space_re.match(line).group(0) | |
205 |
|
205 | |||
206 | # If we're mid-command, put it back on the next prompt for the user. |
|
206 | # If we're mid-command, put it back on the next prompt for the user. | |
207 | next_input = line.rstrip('?') if line.strip() != m.group(0) else None |
|
207 | next_input = line.rstrip('?') if line.strip() != m.group(0) else None | |
208 |
|
208 | |||
209 | return _make_help_call(target, esc, lspace, next_input) |
|
209 | return _make_help_call(target, esc, lspace, next_input) | |
210 |
|
210 | |||
211 |
|
211 | |||
212 | @coroutine_input_transformer |
|
212 | @coroutine_input_transformer | |
213 | def cellmagic(): |
|
213 | def cellmagic(): | |
214 | tpl = 'get_ipython().run_cell_magic(%r, %r, %r)' |
|
214 | tpl = 'get_ipython().run_cell_magic(%r, %r, %r)' | |
215 | cellmagic_help_re = re.compile('%%\w+\?') |
|
215 | cellmagic_help_re = re.compile('%%\w+\?') | |
216 | line = '' |
|
216 | line = '' | |
217 | while True: |
|
217 | while True: | |
218 | line = (yield line) |
|
218 | line = (yield line) | |
219 | if (not line) or (not line.startswith(ESC_MAGIC2)): |
|
219 | if (not line) or (not line.startswith(ESC_MAGIC2)): | |
220 | continue |
|
220 | continue | |
221 |
|
221 | |||
222 | if cellmagic_help_re.match(line): |
|
222 | if cellmagic_help_re.match(line): | |
223 | # This case will be handled by help_end |
|
223 | # This case will be handled by help_end | |
224 | continue |
|
224 | continue | |
225 |
|
225 | |||
226 | first = line |
|
226 | first = line | |
227 | body = [] |
|
227 | body = [] | |
228 | line = (yield None) |
|
228 | line = (yield None) | |
229 | while (line is not None) and (line.strip() != ''): |
|
229 | while (line is not None) and (line.strip() != ''): | |
230 | body.append(line) |
|
230 | body.append(line) | |
231 | line = (yield None) |
|
231 | line = (yield None) | |
232 |
|
232 | |||
233 | # Output |
|
233 | # Output | |
234 | magic_name, _, first = first.partition(' ') |
|
234 | magic_name, _, first = first.partition(' ') | |
235 | magic_name = magic_name.lstrip(ESC_MAGIC2) |
|
235 | magic_name = magic_name.lstrip(ESC_MAGIC2) | |
236 | line = tpl % (magic_name, first, u'\n'.join(body)) |
|
236 | line = tpl % (magic_name, first, u'\n'.join(body)) | |
237 |
|
237 | |||
|
238 | ||||
238 | def _strip_prompts(prompt1_re, prompt2_re): |
|
239 | def _strip_prompts(prompt1_re, prompt2_re): | |
239 | """Remove matching input prompts from a block of input.""" |
|
240 | """Remove matching input prompts from a block of input.""" | |
240 | line = '' |
|
241 | line = '' | |
241 | while True: |
|
242 | while True: | |
242 | line = (yield line) |
|
243 | line = (yield line) | |
243 |
|
244 | |||
244 | if line is None: |
|
245 | if line is None: | |
245 | continue |
|
246 | continue | |
246 |
|
247 | |||
247 | m = prompt1_re.match(line) |
|
248 | m = prompt1_re.match(line) | |
248 | if m: |
|
249 | if m: | |
249 | while m: |
|
250 | while m: | |
250 | line = (yield line[len(m.group(0)):]) |
|
251 | line = (yield line[len(m.group(0)):]) | |
251 | if line is None: |
|
252 | if line is None: | |
252 | break |
|
253 | break | |
253 | m = prompt2_re.match(line) |
|
254 | m = prompt2_re.match(line) | |
254 | else: |
|
255 | else: | |
255 | # Prompts not in input - wait for reset |
|
256 | # Prompts not in input - wait for reset | |
256 | while line is not None: |
|
257 | while line is not None: | |
257 | line = (yield line) |
|
258 | line = (yield line) | |
258 |
|
259 | |||
259 | @coroutine_input_transformer |
|
260 | @coroutine_input_transformer | |
260 | def classic_prompt(): |
|
261 | def classic_prompt(): | |
261 | prompt1_re = re.compile(r'^(>>> )') |
|
262 | prompt1_re = re.compile(r'^(>>> )') | |
262 | prompt2_re = re.compile(r'^(>>> |^\.\.\. )') |
|
263 | prompt2_re = re.compile(r'^(>>> |^\.\.\. )') | |
263 | return _strip_prompts(prompt1_re, prompt2_re) |
|
264 | return _strip_prompts(prompt1_re, prompt2_re) | |
264 |
|
265 | |||
265 | classic_prompt.look_in_string = True |
|
266 | classic_prompt.look_in_string = True | |
266 |
|
267 | |||
267 | @coroutine_input_transformer |
|
268 | @coroutine_input_transformer | |
268 | def ipy_prompt(): |
|
269 | def ipy_prompt(): | |
269 | prompt1_re = re.compile(r'^In \[\d+\]: ') |
|
270 | prompt1_re = re.compile(r'^In \[\d+\]: ') | |
270 | prompt2_re = re.compile(r'^(In \[\d+\]: |^\ \ \ \.\.\.+: )') |
|
271 | prompt2_re = re.compile(r'^(In \[\d+\]: |^\ \ \ \.\.\.+: )') | |
271 | return _strip_prompts(prompt1_re, prompt2_re) |
|
272 | return _strip_prompts(prompt1_re, prompt2_re) | |
272 |
|
273 | |||
273 | ipy_prompt.look_in_string = True |
|
274 | ipy_prompt.look_in_string = True | |
274 |
|
275 | |||
|
276 | ||||
275 | @coroutine_input_transformer |
|
277 | @coroutine_input_transformer | |
276 | def leading_indent(): |
|
278 | def leading_indent(): | |
277 | space_re = re.compile(r'^[ \t]+') |
|
279 | space_re = re.compile(r'^[ \t]+') | |
278 | line = '' |
|
280 | line = '' | |
279 | while True: |
|
281 | while True: | |
280 | line = (yield line) |
|
282 | line = (yield line) | |
281 |
|
283 | |||
282 | if line is None: |
|
284 | if line is None: | |
283 | continue |
|
285 | continue | |
284 |
|
286 | |||
285 | m = space_re.match(line) |
|
287 | m = space_re.match(line) | |
286 | if m: |
|
288 | if m: | |
287 | space = m.group(0) |
|
289 | space = m.group(0) | |
288 | while line is not None: |
|
290 | while line is not None: | |
289 | if line.startswith(space): |
|
291 | if line.startswith(space): | |
290 | line = line[len(space):] |
|
292 | line = line[len(space):] | |
291 | line = (yield line) |
|
293 | line = (yield line) | |
292 | else: |
|
294 | else: | |
293 | # No leading spaces - wait for reset |
|
295 | # No leading spaces - wait for reset | |
294 | while line is not None: |
|
296 | while line is not None: | |
295 | line = (yield line) |
|
297 | line = (yield line) | |
296 |
|
298 | |||
297 | leading_indent.look_in_string = True |
|
299 | leading_indent.look_in_string = True | |
298 |
|
300 | |||
|
301 | ||||
299 | def _special_assignment(assignment_re, template): |
|
302 | def _special_assignment(assignment_re, template): | |
300 | line = '' |
|
303 | line = '' | |
301 | while True: |
|
304 | while True: | |
302 | line = (yield line) |
|
305 | line = (yield line) | |
303 | if not line or line.isspace(): |
|
306 | if not line or line.isspace(): | |
304 | continue |
|
307 | continue | |
305 |
|
308 | |||
306 | m = assignment_re.match(line) |
|
309 | m = assignment_re.match(line) | |
307 | if not m: |
|
310 | if not m: | |
308 | continue |
|
311 | continue | |
309 |
|
312 | |||
310 | parts = [] |
|
313 | parts = [] | |
311 | while line is not None: |
|
314 | while line is not None: | |
312 | parts.append(line.rstrip('\\')) |
|
315 | parts.append(line.rstrip('\\')) | |
313 | if not line.endswith('\\'): |
|
316 | if not line.endswith('\\'): | |
314 | break |
|
317 | break | |
315 | line = (yield None) |
|
318 | line = (yield None) | |
316 |
|
319 | |||
317 | # Output |
|
320 | # Output | |
318 | whole = assignment_re.match(' '.join(parts)) |
|
321 | whole = assignment_re.match(' '.join(parts)) | |
319 | line = template % (whole.group('lhs'), whole.group('cmd')) |
|
322 | line = template % (whole.group('lhs'), whole.group('cmd')) | |
320 |
|
323 | |||
321 | @coroutine_input_transformer |
|
324 | @coroutine_input_transformer | |
322 | def assign_from_system(): |
|
325 | def assign_from_system(): | |
323 | assignment_re = re.compile(r'(?P<lhs>(\s*)([\w\.]+)((\s*,\s*[\w\.]+)*))' |
|
326 | assignment_re = re.compile(r'(?P<lhs>(\s*)([\w\.]+)((\s*,\s*[\w\.]+)*))' | |
324 | r'\s*=\s*!\s*(?P<cmd>.*)') |
|
327 | r'\s*=\s*!\s*(?P<cmd>.*)') | |
325 | template = '%s = get_ipython().getoutput(%r)' |
|
328 | template = '%s = get_ipython().getoutput(%r)' | |
326 | return _special_assignment(assignment_re, template) |
|
329 | return _special_assignment(assignment_re, template) | |
327 |
|
330 | |||
328 | @coroutine_input_transformer |
|
331 | @coroutine_input_transformer | |
329 | def assign_from_magic(): |
|
332 | def assign_from_magic(): | |
330 | assignment_re = re.compile(r'(?P<lhs>(\s*)([\w\.]+)((\s*,\s*[\w\.]+)*))' |
|
333 | assignment_re = re.compile(r'(?P<lhs>(\s*)([\w\.]+)((\s*,\s*[\w\.]+)*))' | |
331 | r'\s*=\s*%\s*(?P<cmd>.*)') |
|
334 | r'\s*=\s*%\s*(?P<cmd>.*)') | |
332 | template = '%s = get_ipython().magic(%r)' |
|
335 | template = '%s = get_ipython().magic(%r)' | |
333 | return _special_assignment(assignment_re, template) |
|
336 | return _special_assignment(assignment_re, template) |
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