Add _ENCODE_FILE_NEW and _ENCODE_FILE_EXISTING variables

stable-patches/MANIFEST.patch

@@ -2,19 +2,22 @@ diff --git a/MANIFEST b/MANIFEST
 index 985d179..2a1cd25 100644
 --- a/MANIFEST
 +++ b/MANIFEST
-@@ -1455,6 +1455,8 @@ tests/quotearray2.sub	f
+@@ -1455,6 +1455,10 @@ tests/quotearray2.sub	f
  tests/quotearray3.sub	f
  tests/quotearray4.sub	f
  tests/quotearray5.sub	f
++tests/encodefilevars.tests	f
++tests/encodefilevars.right	f
 +tests/rbash.tests	f
 +tests/rbash.right	f
  tests/read.tests	f
  tests/read.right	f
  tests/read1.sub		f
-@@ -1565,6 +1567,7 @@ tests/run-printf	f
+@@ -1565,6 +1569,8 @@ tests/run-printf	f
  tests/run-procsub	f
  tests/run-quote		f
  tests/run-quotearray	f
++tests/run-encodefilevars	f
 +tests/run-rbash	f
  tests/run-read		f
  tests/run-redir		f

stable-patches/tests/encodefilevars.right.patch

@@ -0,0 +1,48 @@
+diff --git a/tests/encodefilevars.right b/tests/encodefilevars.right
+new file mode 100644
+index 0000000..0c442f0
+--- /dev/null
++++ b/tests/encodefilevars.right
+@@ -0,0 +1,42 @@
++Testing _ENCODE_FILE_NEW and _ENCODE_FILE_EXISTING variable handling
++Test 1: Setting _ENCODE_FILE_NEW to UTF-8
++_ENCODE_FILE_NEW=UTF-8
++UTF-8
++Test 2: Setting _ENCODE_FILE_EXISTING to ISO8859-1
++_ENCODE_FILE_EXISTING=ISO8859-1
++ISO8859-1
++Test 3: Changing _ENCODE_FILE_NEW to IBM-1047
++_ENCODE_FILE_NEW=IBM-1047
++IBM-1047
++Test 4: Changing _ENCODE_FILE_EXISTING to UTF-8
++_ENCODE_FILE_EXISTING=UTF-8
++UTF-8
++Test 5: Unsetting _ENCODE_FILE_NEW
++_ENCODE_FILE_NEW=
++_ENCODE_FILE_NEW is not set in environment
++Test 6: Unsetting _ENCODE_FILE_EXISTING
++_ENCODE_FILE_EXISTING=
++_ENCODE_FILE_EXISTING is not set in environment
++Test 7: Setting both variables together
++_ENCODE_FILE_NEW=UTF-8
++_ENCODE_FILE_EXISTING=ISO8859-1
++UTF-8
++ISO8859-1
++Test 8: Verify variables are exported to subshell
++Subshell _ENCODE_FILE_NEW=UTF-8
++Subshell _ENCODE_FILE_EXISTING=IBM-1047
++Test 9: Setting empty value for _ENCODE_FILE_NEW
++_ENCODE_FILE_NEW=
++_ENCODE_FILE_NEW is not set in environment
++Test 10: Setting empty value for _ENCODE_FILE_EXISTING
++_ENCODE_FILE_EXISTING=
++_ENCODE_FILE_EXISTING is not set in environment
++Test 11: Multiple set/unset cycles
++Set 1: _ENCODE_FILE_NEW=UTF-8
++Unset 1: _ENCODE_FILE_NEW=
++Set 2: _ENCODE_FILE_NEW=ISO8859-1
++Unset 2: _ENCODE_FILE_NEW=
++Test 12: Verify variable attributes
++declare -x _ENCODE_FILE_NEW="UTF-8"
++declare -x _ENCODE_FILE_EXISTING="IBM-1047"
++Tests completed

stable-patches/tests/encodefilevars.tests.patch

@@ -0,0 +1,95 @@
+diff --git a/tests/encodefilevars.tests b/tests/encodefilevars.tests
+new file mode 100644
+index 0000000..0000000
+--- /dev/null
++++ b/tests/encodefilevars.tests
+@@ -0,0 +1,89 @@
++# Test _ENCODE_FILE_NEW and _ENCODE_FILE_EXISTING environment variable handling
++# These tests verify that bash properly manages z/OS file encoding variables
++
++echo "Testing _ENCODE_FILE_NEW and _ENCODE_FILE_EXISTING variable handling"
++
++# Test 1: Setting _ENCODE_FILE_NEW
++echo "Test 1: Setting _ENCODE_FILE_NEW to UTF-8"
++export _ENCODE_FILE_NEW=UTF-8
++echo "_ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++printenv _ENCODE_FILE_NEW
++
++# Test 2: Setting _ENCODE_FILE_EXISTING
++echo "Test 2: Setting _ENCODE_FILE_EXISTING to ISO8859-1"
++export _ENCODE_FILE_EXISTING=ISO8859-1
++echo "_ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"
++printenv _ENCODE_FILE_EXISTING
++
++# Test 3: Changing _ENCODE_FILE_NEW value
++echo "Test 3: Changing _ENCODE_FILE_NEW to IBM-1047"
++export _ENCODE_FILE_NEW=IBM-1047
++echo "_ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++printenv _ENCODE_FILE_NEW
++
++# Test 4: Changing _ENCODE_FILE_EXISTING value
++echo "Test 4: Changing _ENCODE_FILE_EXISTING to UTF-8"
++export _ENCODE_FILE_EXISTING=UTF-8
++echo "_ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"
++printenv _ENCODE_FILE_EXISTING
++
++# Test 5: Unsetting _ENCODE_FILE_NEW
++echo "Test 5: Unsetting _ENCODE_FILE_NEW"
++unset _ENCODE_FILE_NEW
++echo "_ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++printenv _ENCODE_FILE_NEW || echo "_ENCODE_FILE_NEW is not set in environment"
++
++# Test 6: Unsetting _ENCODE_FILE_EXISTING
++echo "Test 6: Unsetting _ENCODE_FILE_EXISTING"
++unset _ENCODE_FILE_EXISTING
++echo "_ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"
++printenv _ENCODE_FILE_EXISTING || echo "_ENCODE_FILE_EXISTING is not set in environment"
++
++# Test 7: Setting both variables together
++echo "Test 7: Setting both variables together"
++export _ENCODE_FILE_NEW=UTF-8 _ENCODE_FILE_EXISTING=ISO8859-1
++echo "_ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++echo "_ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"
++printenv _ENCODE_FILE_NEW
++printenv _ENCODE_FILE_EXISTING
++
++# Test 8: Verify variables are exported to subshell
++echo "Test 8: Verify variables are exported to subshell"
++export _ENCODE_FILE_NEW=UTF-8
++export _ENCODE_FILE_EXISTING=IBM-1047
++${THIS_SH} -c 'echo "Subshell _ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"; echo "Subshell _ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"'
++
++# Test 9: Setting empty value
++echo "Test 9: Setting empty value for _ENCODE_FILE_NEW"
++export _ENCODE_FILE_NEW=
++echo "_ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++printenv _ENCODE_FILE_NEW || echo "_ENCODE_FILE_NEW is not set in environment"
++
++# Test 10: Setting empty value for _ENCODE_FILE_EXISTING
++echo "Test 10: Setting empty value for _ENCODE_FILE_EXISTING"
++export _ENCODE_FILE_EXISTING=
++echo "_ENCODE_FILE_EXISTING=${_ENCODE_FILE_EXISTING}"
++printenv _ENCODE_FILE_EXISTING || echo "_ENCODE_FILE_EXISTING is not set in environment"
++
++# Test 11: Multiple set/unset cycles
++echo "Test 11: Multiple set/unset cycles"
++export _ENCODE_FILE_NEW=UTF-8
++echo "Set 1: _ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++unset _ENCODE_FILE_NEW
++echo "Unset 1: _ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++export _ENCODE_FILE_NEW=ISO8859-1
++echo "Set 2: _ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++unset _ENCODE_FILE_NEW
++echo "Unset 2: _ENCODE_FILE_NEW=${_ENCODE_FILE_NEW}"
++
++# Test 12: Verify variable attributes
++echo "Test 12: Verify variable attributes"
++export _ENCODE_FILE_NEW=UTF-8
++export _ENCODE_FILE_EXISTING=IBM-1047
++declare -p _ENCODE_FILE_NEW 2>/dev/null || echo "_ENCODE_FILE_NEW variable info not available"
++declare -p _ENCODE_FILE_EXISTING 2>/dev/null || echo "_ENCODE_FILE_EXISTING variable info not available"
++
++# Cleanup
++unset _ENCODE_FILE_NEW
++unset _ENCODE_FILE_EXISTING
++echo "Tests completed"

stable-patches/tests/run-encodefilevars.patch

@@ -0,0 +1,8 @@
+diff --git a/tests/run-encodefilevars b/tests/run-encodefilevars
+new file mode 100644
+index 0000000..0000000
+--- /dev/null
++++ b/tests/run-encodefilevars
+@@ -0,0 +1,2 @@
++${THIS_SH} ./encodefilevars.tests > ${BASH_TSTOUT} 2>&1
++diff ${BASH_TSTOUT} encodefilevars.right | tee encodefilevars.output && rm -f ${BASH_TSTOUT}

stable-patches/variable.patch

@@ -1,7 +1,7 @@
-diff --git i/variables.c w/variables.c
-index 4e6f93b..a37e258 100644
---- i/variables.c
-+++ w/variables.c
+diff --git a/variables.c b/variables.c
+index 4e6f93b..5bf5db5 100644
+--- a/variables.c
++++ b/variables.c
 @@ -36,6 +36,10 @@
  #  include <unistd.h>
  #endif
@@ -13,17 +13,19 @@ index 4e6f93b..a37e258 100644
  #include <stdio.h>
  #include "chartypes.h"
  #if defined (HAVE_PWD_H)
-@@ -5757,6 +5761,9 @@ struct name_and_function {
+@@ -5757,6 +5761,11 @@ struct name_and_function {
  };
 
  static struct name_and_function special_vars[] = {
 +#if defined (__MVS__)
 +  { "_BPXK_AUTOCVT", sv_bpxk_autocvt },
++  { "_ENCODE_FILE_NEW", sv_encode_file_new },
++  { "_ENCODE_FILE_EXISTING", sv_encode_file_existing },
 +#endif
    { "BASH_COMPAT", sv_shcompat },
    { "BASH_XTRACEFD", sv_xtracefd },
 
-@@ -5978,6 +5985,32 @@ sv_globsort (const char *name)
+@@ -5978,6 +5987,76 @@ sv_globsort (const char *name)
    setup_globsort (name);
  }
 
@@ -51,21 +53,67 @@ index 4e6f93b..a37e258 100644
 +  else if (strcmp(value, "OFF") == 0)
 +    __ae_autoconvert_state(_CVTSTATE_OFF);
 +}
++
++/* What to do when _ENCODE_FILE_NEW changes. */
++void
++sv_encode_file_new (const char *name)
++{
++  SHELL_VAR *v;
++  char *value;
++
++  v = find_variable (name);
++  if (v == 0 || value_cell (v) == 0)
++    {
++      /* Unbind the variable using Bash's internal function */
++      unbind_variable("_ENCODE_FILE_NEW");
++      return;
++    }
++
++  value = value_cell (v);
++  /* Use Bash's bind_variable with export flag */
++  v = bind_variable("_ENCODE_FILE_NEW", value, 0);
++  if (v)
++    VSETATTR(v, att_exported);
++}
++
++/* What to do when _ENCODE_FILE_EXISTING changes. */
++void
++sv_encode_file_existing (const char *name)
++{
++  SHELL_VAR *v;
++  char *value;
++
++  v = find_variable (name);
++  if (v == 0 || value_cell (v) == 0)
++    {
++      /* Unbind the variable using Bash's internal function */
++      unbind_variable("_ENCODE_FILE_EXISTING");
++      return;
++    }
++
++  value = value_cell (v);
++  /* Use Bash's bind_variable with export flag */
++  v = bind_variable("_ENCODE_FILE_EXISTING", value, 0);
++  if (v)
++    VSETATTR(v, att_exported);
++}
 +#endif
 +
  #if defined (READLINE)
  void
  sv_comp_wordbreaks (const char *name)
-diff --git i/variables.h w/variables.h
-index e939e59..719d5ac 100644
---- i/variables.h
-+++ w/variables.h
-@@ -454,6 +454,10 @@ extern void sv_xtracefd (const char *);
+diff --git a/variables.h b/variables.h
+index e939e59..304ed3f 100644
+--- a/variables.h
++++ b/variables.h
+@@ -454,6 +454,12 @@ extern void sv_xtracefd (const char *);
  extern void sv_shcompat (const char *);
  extern void sv_globsort (const char *);
 
 +#if defined (__MVS__)
 +extern void sv_bpxk_autocvt (const char *);
++extern void sv_encode_file_new (const char *);
++extern void sv_encode_file_existing (const char *);
 +#endif
 +
  #if defined (READLINE)