blob: 6ed72780bf3be76363f8f2fe0f0e0c5f6f0bb334 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
% File: pythonimmediate.sty
% Copyright 2022 user202729
%
% This work may be distributed and/or modified under the conditions of the
% LaTeX Project Public License (LPPL), either version 1.3c of this license or
% (at your option) any later version. The latest version of this license is in
% the file:
%
% http://www.latex-project.org/lppl.txt
%
% This work has the LPPL maintenance status `maintained'.
%
% The Current Maintainer of this work is user202729.
\ProvidesExplPackage{pythonimmediate}{2022/12/23}{0.0.0}{Library to run Python code}
\RequirePackage{saveenv}
\RequirePackage{currfile}
\RequirePackage{l3keys2e}
\RequirePackage{precattl}
\cs_generate_variant:Nn \str_set:Nn {NV}
\cs_generate_variant:Nn \str_if_eq:nnT {VnT}
\cs_generate_variant:Nn \msg_error:nnn {nnV}
\cs_generate_variant:Nn \str_if_eq:nnF {xnF}
\cs_generate_variant:Nn \str_range:nnn {Vnn}
\cs_generate_variant:Nn \str_if_eq:nnF {VnF}
\cs_generate_variant:Nn \str_if_in:nnF {VnF}
\cs_generate_variant:Nn \tl_build_put_right:Nn {NV}
%\bench before~rescan.
%\bench after~rescan.
%\GenerateVariantsFile:n{\rescansynclastfilename}
\str_set:Nn \_pythonimmediate_outputdir{.}
\tl_set:Nn \_pythonimmediate_textopy_script_path{}
\str_set:Nn \_pythonimmediate_mode{multiprocessing-network}
\str_set:Nn \_pythonimmediate_python_executable{python3}
\keys_define:nn{pythonimmediate}{
outputdir.tl_set_x:N=\_pythonimmediate_outputdir,
%outputdir.default:n={.}, % huh does not work?
mode.tl_set:N=\_pythonimmediate_mode,
scriptpath.tl_set_x:N=\_pythonimmediate_textopy_script_path,
python-executable.tl_set:N=\_pythonimmediate_python_executable,
}
\ProcessKeysOptions{pythonimmediate}
\str_set:NV \_pythonimmediate_outputdir \_pythonimmediate_outputdir
\str_set:NV \_pythonimmediate_mode \_pythonimmediate_mode
\str_set:NV \_pythonimmediate_textopy_script_path \_pythonimmediate_textopy_script_path
\msg_new:nnn {pythonimmediate} {shell-fail} {Shell~command~execution~failed!}
\msg_new:nnn {pythonimmediate} {cannot-determine-script-path} {Cannot~determine~script~path!}
\msg_new:nnn {pythonimmediate} {cannot-read-line} {Cannot~read~line!}
\msg_new:nnn {pythonimmediate} {internal-error} {Internal~error!}
\msg_new:nnn {pythonimmediate} {invalid-mode} {Invalid~mode:~'#1'.}
\bool_new:N \_pythonimmediate_mode_multiprocessing_network
\bool_new:N \_pythonimmediate_mode_unnamed_pipe
\str_if_eq:VnT \_pythonimmediate_mode {multiprocessing-network} {\bool_set_true:N \_pythonimmediate_mode_multiprocessing_network}
\str_if_eq:VnT \_pythonimmediate_mode {unnamed-pipe} {\bool_set_true:N \_pythonimmediate_mode_unnamed_pipe}
\bool_if:nF {\_pythonimmediate_mode_multiprocessing_network || \_pythonimmediate_mode_unnamed_pipe} {
\msg_error:nnV {pythonimmediate} {invalid-mode} \_pythonimmediate_mode
}
% we need to persistently open the file anyway, so using LaTeX3 stream reference counting doesn't help
\newread \_pythonimmediate_read_file
%\bench before~setup.
\begingroup
\endlinechar=-1~
\tl_if_empty:NT \_pythonimmediate_textopy_script_path {
% ======== first use kpsewhich to get the _pythonimmediate_script_path here ========
% (abuse \_pythonimmediate_read_file variable for this purpose)
\openin \_pythonimmediate_read_file=|"kpsewhich~ pythonimmediate_script_textopy.py"~
\readline \_pythonimmediate_read_file to \_pythonimmediate_textopy_script_path
%\bench after~get~textopy~path.
\ifeof \_pythonimmediate_read_file
\msg_error:nn {pythonimmediate} {cannot-determine-script-path}
\fi
}
\str_if_eq:xnF {\str_range:Vnn \_pythonimmediate_textopy_script_path {-10} {-1}} {textopy.py} {
\msg_error:nn {pythonimmediate} {cannot-determine-script-path}
}
\newwrite \_pythonimmediate_write_file
%\bench before~openin.
% ======== open persistent pipes to the child processes
\bool_if:NTF \_pythonimmediate_mode_unnamed_pipe { % in this case make sure the pipe remains open...
\openin \_pythonimmediate_read_file=|"sleep~ 0.5s|\_pythonimmediate_python_executable \space \str_range:Vnn \_pythonimmediate_textopy_script_path {1} {-11} pytotex.py \space \_pythonimmediate_mode"~ % we must use the primitive here to use the pipe file path
% TODO sleep infinity causes some resource leak (the process will not exit after TeX exits). Need to fix
% but sleep too little might be problematic that it exits before the setup is done
% we can just assume machines are not that slow
} {
\openin \_pythonimmediate_read_file=|"\_pythonimmediate_python_executable \space \str_range:Vnn \_pythonimmediate_textopy_script_path {1} {-11} pytotex.py \space \_pythonimmediate_mode"~ % we must use the primitive here to use the pipe file path
}
%\bench after~openin.
%\bench before~openout.
\immediate\openout \_pythonimmediate_write_file=|"\_pythonimmediate_python_executable \space \_pythonimmediate_textopy_script_path \space \_pythonimmediate_mode"~
% both processes must be before the \readline above so that the 2 Python processes are started "in parallel"
%\bench after~openout.
\readline \_pythonimmediate_read_file to \_pythonimmediate_dummy_line % endlinechar still -1
%\bench after~read~line.
\bool_if:NT \_pythonimmediate_mode_multiprocessing_network {
\str_if_eq:VnF \_pythonimmediate_dummy_line {listener-setup-done} {
\msg_error:nn {pythonimmediate} {cannot-read-line}
}
}
\bool_if:NT \_pythonimmediate_mode_unnamed_pipe {
\str_if_in:VnF \_pythonimmediate_dummy_line {pytotex_pid=} {
\msg_error:nn {pythonimmediate} {cannot-read-line}
}
}
\bool_if:NT \_pythonimmediate_mode_unnamed_pipe {
\immediate\write\_pythonimmediate_write_file {\_pythonimmediate_dummy_line} % which contains pytotex's pid
}
\endgroup
%\bench after~setup.
% read one block of \TeX\ code from Python, store into the specified variable
% the block is delimited using |surround_delimiter()| in Python i.e. the first and last line are identical
% new lines are represented with ^^J
\cs_new_protected:Npn \_pythonimmediate_gread_block:N #1 {
\begingroup
\endlinechar=10~ % affect \readline
\readline \_pythonimmediate_read_file to \_pythonimmediate_delimiter
\tl_build_gbegin:N #1
\readline \_pythonimmediate_read_file to \_pythonimmediate_line
%\bench read~first~line.
\bool_do_until:nn {\tl_if_eq_p:NN \_pythonimmediate_delimiter \_pythonimmediate_line} {
\tl_build_gput_right:NV #1 \_pythonimmediate_line
\ifeof \_pythonimmediate_read_file
\msg_error:nn {pythonimmediate} {internal-error}
\fi
\readline \_pythonimmediate_read_file to \_pythonimmediate_line
}
\tl_build_gend:N #1
\endgroup
}
\cs_generate_variant:Nn \tl_build_gput_right:Nn {NV}
\cs_new_protected:Npn \_pythonimmediate_read_block:N #1 {
\_pythonimmediate_gread_block:N \_pythonimmediate_block
\tl_set_eq:NN #1 \_pythonimmediate_block
}
% read one block of \TeX\ code from Python and |\scantokens|-run it
% the content inside is the actual TeX code to be executed
\cs_new_protected:Npn \_pythonimmediate_run_block: {
\_pythonimmediate_gread_block:N \_pythonimmediate_code
\begingroup
\newlinechar=10~
\expandafter
\endgroup
\scantokens \expandafter{\_pythonimmediate_code}
} % trick described in https://tex.stackexchange.com/q/640274 to scantokens the code with \newlinechar=10
% bootstrap code
%\bench before~bootstrap.
\_pythonimmediate_run_block:
%\bench after~bootstrap.
|
