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8b5f11dcd7
Add support for multibyte characters to $IFS This commit fixes BUG_MULTIBIFS, which had two bug reports in the ksh2020 branch. src/cmd/ksh93/sh/macro.c: - Backport Eric Scrivner's fix for multibyte IFS characters (slightly modified for compatibility with C89). Explanation from https://github.com/att/ast/pull/737: Previously, the varsub method used for the macro expansion of $param, ${param}, and ${param op word} would incorrectly expand the internal field separator (IFS) if it was a multibyte character. This was due to truncation based on the incorrect assumption that the IFS would never be larger than a single byte. This change fixes this issue by carefully tracking the number of bytes that should be persisted in the IFS case and ensuring that all bytes are written during expansion and substitution. Bug report: https://github.com/att/ast/issues/13 - Fixed another bug that caused multibyte characters with the same initial byte to be treated as the same character by the IFS. This bug was occurring because the first byte of a multibyte character wasn't being written to the stack when the IFS delimiter had the same initial byte: $ IFS=£ $ v='§' $ set -- $v $ v="${1-}" $ echo "$v" | hd # The first byte should be c2, but it isn't due to the bug 00000000 a7 0a |..| 00000002 Bug report: https://github.com/att/ast/issues/1372 src/cmd/ksh93/tests/variables.sh: - Add (reworked) regression tests from ksh2020 for the multibyte IFS bugs. - Add a regression test for att/ast#1372 based on the reproducer. |
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| .. | ||
| argnod.h | ||
| builtins.h | ||
| defs.h | ||
| edit.h | ||
| env.h | ||
| fault.h | ||
| fcin.h | ||
| history.h | ||
| io.h | ||
| jobs.h | ||
| lexstates.h | ||
| name.h | ||
| national.h | ||
| nval.h | ||
| path.h | ||
| regress.h | ||
| shell.h | ||
| shlex.h | ||
| shnodes.h | ||
| shtable.h | ||
| streval.h | ||
| terminal.h | ||
| test.h | ||
| timeout.h | ||
| ulimit.h | ||
| variables.h | ||
| version.h | ||