commit beabaefdf2c4ab5fba0c450e40201d989ee4f97a
Author: vaydheesh <lokendras1998@gmail.com>
Date:   Sat Aug 17 17:54:32 2019 +0530

    added: apertium-destxt

diff --git a/apertium/utils.py b/apertium/utils.py
index 3c2c52c..8f67100 100644
--- a/apertium/utils.py
+++ b/apertium/utils.py
@@ -52,56 +52,63 @@ def execute_pipeline(inp: str, commands: List[List[str]]) -> str:
         # delete=False and manually delete the file.
         used_wrapper = True
         if wrappers_available:
-            input_file = tempfile.NamedTemporaryFile(delete=False, mode='w')
-            output_file = tempfile.NamedTemporaryFile(delete=False)
-            input_file_name, output_file_name = input_file.name, output_file.name
-
-            arg = command[1][1] if len(command) >= 3 else ''
-            text = end.decode()
-            input_file.write(text)
-            input_file.close()
-
-            if 'lt-proc' == command[0]:
-                dictionary_path = command[-1]
-                lttoolbox.LtLocale.tryToSetLocale()
-                fst = lttoolbox.FST(dictionary_path)
-                if not fst.valid():
-                    raise ValueError('FST Invalid')
-                fst.lt_proc(arg, input_file_name, output_file_name)
-            elif 'lrx-proc' == command[0]:
-                dictionary_path = command[-1]
-                lextools.LtLocale.tryToSetLocale()
-                lrx = lextools.LRXProc(dictionary_path)
-                lrx.lrx_proc(arg, input_file.name, output_file.name)
-            elif 'apertium-transfer' == command[0]:
-                transfer = apertium_core.ApertiumTransfer(command[2], command[3])
-                transfer.transfer_text(arg, input_file.name, output_file.name)
-            elif 'apertium-interchunk' == command[0]:
-                interchunk = apertium_core.ApertiumInterchunk(command[1], command[2])
-                interchunk.interchunk_text(arg, input_file.name, output_file.name)
-            elif 'apertium-postchunk' == command[0]:
-                postchunk = apertium_core.ApertiumPostchunk(command[1], command[2])
-                postchunk.postchunk_text(arg, input_file.name, output_file.name)
-            elif 'apertium-pretransfer' == command[0]:
-                apertium_core.pretransfer(arg, input_file.name, output_file.name)
-            elif 'apertium-tagger' == command[0]:
-                command += [input_file.name, output_file.name]
-                apertium_core.ApertiumTagger(len(command), command)
-            elif 'cg-proc' == command[0]:
-                dictionary_path = command[-1]
-                cg = constraint_grammar.CGProc(dictionary_path)
-                cg_proc_command = command[:-1]
-                cg.cg_proc(len(cg_proc_command), cg_proc_command, input_file.name, output_file.name)
+            if 'apertium-destxt' == command[0]:
+                used_wrapper = True
+                _special_chars_map = {i: '\\' + chr(i) for i in b'[]{}?^$@\\'}
+                text = end.decode()
+                output = '{}.[][\n]'.format(text.translate(_special_chars_map))
+                end = output.encode()
             else:
-                used_wrapper = False
-
-            if used_wrapper:
-                output_file.seek(0)
-                end = output_file.read()
-            output_file.close()
-
-            os.remove(input_file_name)
-            os.remove(output_file_name)
+                input_file = tempfile.NamedTemporaryFile(delete=False, mode='w')
+                output_file = tempfile.NamedTemporaryFile(delete=False)
+                input_file_name, output_file_name = input_file.name, output_file.name
+
+                arg = command[1][1] if len(command) >= 3 else ''
+                text = end.decode()
+                input_file.write(text)
+                input_file.close()
+
+                if 'lt-proc' == command[0]:
+                    dictionary_path = command[-1]
+                    lttoolbox.LtLocale.tryToSetLocale()
+                    fst = lttoolbox.FST(dictionary_path)
+                    if not fst.valid():
+                        raise ValueError('FST Invalid')
+                    fst.lt_proc(arg, input_file_name, output_file_name)
+                elif 'lrx-proc' == command[0]:
+                    dictionary_path = command[-1]
+                    lextools.LtLocale.tryToSetLocale()
+                    lrx = lextools.LRXProc(dictionary_path)
+                    lrx.lrx_proc(arg, input_file.name, output_file.name)
+                elif 'apertium-transfer' == command[0]:
+                    transfer = apertium_core.ApertiumTransfer(command[2], command[3])
+                    transfer.transfer_text(arg, input_file.name, output_file.name)
+                elif 'apertium-interchunk' == command[0]:
+                    interchunk = apertium_core.ApertiumInterchunk(command[1], command[2])
+                    interchunk.interchunk_text(arg, input_file.name, output_file.name)
+                elif 'apertium-postchunk' == command[0]:
+                    postchunk = apertium_core.ApertiumPostchunk(command[1], command[2])
+                    postchunk.postchunk_text(arg, input_file.name, output_file.name)
+                elif 'apertium-pretransfer' == command[0]:
+                    apertium_core.pretransfer(arg, input_file.name, output_file.name)
+                elif 'apertium-tagger' == command[0]:
+                    command += [input_file.name, output_file.name]
+                    apertium_core.ApertiumTagger(len(command), command)
+                elif 'cg-proc' == command[0]:
+                    dictionary_path = command[-1]
+                    cg = constraint_grammar.CGProc(dictionary_path)
+                    cg_proc_command = command[:-1]
+                    cg.cg_proc(len(cg_proc_command), cg_proc_command, input_file.name, output_file.name)
+                else:
+                    used_wrapper = False
+
+                if used_wrapper:
+                    output_file.seek(0)
+                    end = output_file.read()
+                output_file.close()
+
+                os.remove(input_file_name)
+                os.remove(output_file_name)
         if not wrappers_available or not used_wrapper:
             apertium.logger.warning('Calling subprocess %s', command[0])
             proc = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE)