Closes #115

HISTORY.md

@@ -5,14 +5,15 @@ Work in progress
   - new options --multi-language, --ml-continue-threshold, --ml-rule-threshold,
     --ml-disable, --ml-disablecategories
 - yalafi core
-  - **Changed interface** to extension modules for packages and document
+  - **changed interface** to extension modules for packages and document
     classes (issue [#110](../../issues/110)).
     Entry point is now function init\_module() with two arguments: parser and
     list of package options.
     See for instance yalafi/packages/amsmath.py and yalafi/packages/babel.py.
   - added support for multi-language documents (issue [#98](../../issues/98));
     including fixed issues [#104](../../issues/104), [#108](../../issues/108),
     [#109](../../issues/109)
+  - added CLI option '--mula file' for multi-language output
 - README.md: updated, added section for multi-language support
 
 Version 1.1.7 (2020/11/04)

README.md

@@ -1331,7 +1331,7 @@ The LaTeX filter can be integrated in shell scripts, compare the examples in
 ```
 python -m yalafi [--nums file] [--repl file] [--defs file] [--dcls class]
                  [--pack modules] [--extr macros] [--lang xy] [--ienc enc]
-                 [--seqs] [--unkn] [latexfile]
+                 [--seqs] [--unkn] [--mula file] [latexfile]
 ```
 Without positional argument `latexfile`, standard input is read.
 
@@ -1361,7 +1361,11 @@ Without positional argument `latexfile`, standard input is read.
 - `--unkn`<br>
   As option --list-unknown in section
   [Example application](#example-application).
-
+- `--mula file`<br>
+  Turn on multi-language processing.
+  The different text parts are stored in files `<file>.<part>.<language>`.
+  If --nums has been specified, the position maps are written to files with
+  similar naming scheme.
 
 [Back to contents](#contents)
 
@@ -1381,6 +1385,7 @@ Invocation of `python -m yalafi ...` differs as follows from
 - Added options --dcls and --pack allow modification of predefined LaTeX
   macros and environments at Python level.
 - Added option --seqs.
+- Added option --mula.
 - Option --defs expects a file containing macro definitions as LaTeX code.
 - Option --ienc is also effective for file from --defs.
 - Option --char (position tracking for single characters) is always activated.

yalafi/tex2txt.py

@@ -251,6 +251,7 @@ def main():
     parser.add_argument('--ienc')
     parser.add_argument('--seqs', action='store_true')
     parser.add_argument('--unkn', action='store_true')
+    parser.add_argument('--mula')
     cmdline = parser.parse_args()
 
     if not cmdline.ienc:
@@ -276,6 +277,21 @@ def main():
         # reopen stdin in text mode: handling of '\r', proper decoding
         txt = open(sys.stdin.fileno(), encoding=cmdline.ienc).read()
 
+    if cmdline.mula:
+        # multi-language: write text sections to files
+        ml = tex2txt(txt, options, multi_language=True)
+        for lang in ml:
+            for nr, txt_pos in enumerate(ml[lang]):
+                with myopen(cmdline.mula + '.' + str(nr + 1) + '.' + lang,
+                                    mode='w', encoding='utf-8') as f:
+                    f.write(txt_pos[0])
+                if not cmdline.nums:
+                    continue
+                with myopen(cmdline.nums + '.' + str(nr + 1) + '.' + lang,
+                                    mode='w', encoding='utf-8') as f:
+                    write_output(txt_pos, None, f)
+        sys.exit()
+
     if cmdline.nums:
         cmdline.nums = myopen(cmdline.nums, encoding='utf-8', mode='w')