BASH PATCH REPORT ================= Bash-Release: 5.2 Patch-ID: bash52-037 Bug-Reported-by: Martin Castillo Bug-Reference-ID: <2d42153b-cf65-caba-dff1-cd3bc6268c7e@uni-bremen.de> Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-readline/2023-01/msg00000.html Bug-Description: Fix the case where text to be completed from the line buffer (quoted) is compared to the common prefix of the possible matches (unquoted) and the quoting makes the former appear to be longer than the latter. Readline assumes the match doesn't add any characters to the word and doesn't display multiple matches. Patch (apply with `patch -p0'): *** ../bash-5.2-patched/lib/readline/complete.c Tue Apr 5 10:47:06 2022 --- lib/readline/complete.c Sat Jan 7 14:19:45 2023 *************** *** 2032,2038 **** text = rl_copy_text (start, end); matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char); /* nontrivial_lcd is set if the common prefix adds something to the word being completed. */ ! nontrivial_lcd = matches && compare_match (text, matches[0]) != 0; if (what_to_do == '!' || what_to_do == '@') tlen = strlen (text); --- 2038,2060 ---- text = rl_copy_text (start, end); matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char); + /* If TEXT contains quote characters, it will be dequoted as part of + generating the matches, and the matches will not contain any quote + characters. We need to dequote TEXT before performing the comparison. + Since compare_match performs the dequoting, and we only want to do it + once, we don't call compare_matches after dequoting TEXT; we call + strcmp directly. */ /* nontrivial_lcd is set if the common prefix adds something to the word being completed. */ ! if (rl_filename_completion_desired && rl_filename_quoting_desired && ! rl_completion_found_quote && rl_filename_dequoting_function) ! { ! char *t; ! t = (*rl_filename_dequoting_function) (text, rl_completion_quote_character); ! xfree (text); ! text = t; ! nontrivial_lcd = matches && strcmp (text, matches[0]) != 0; ! } ! else ! nontrivial_lcd = matches && strcmp (text, matches[0]) != 0; if (what_to_do == '!' || what_to_do == '@') tlen = strlen (text); *** ../bash-5.2/patchlevel.h 2020-06-22 14:51:03.000000000 -0400 --- patchlevel.h 2020-10-01 11:01:28.000000000 -0400 *************** *** 26,30 **** looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 36 #endif /* _PATCHLEVEL_H_ */ --- 26,30 ---- looks for to find the patch level (for the sccs version string). */ ! #define PATCHLEVEL 37 #endif /* _PATCHLEVEL_H_ */