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patch 9.1.0624: ex command modifiers not found

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Problem:  ex command modifiers are not found
          (Ingo Karkat, after v9.1.0352)
Solution: partly revert patch v9.1.0352, ignore :{ and :}
          when expanding ex commands

The issue is, that the :keepmarks command can be abbreviated to :kee or
:keep or :keepm but not to e.g. :ke (because that would be the :exe
command :k with register e).

This basically means, we need `:kee` sorted before `:keepalt` but at the
same time `:keepmarks` sorted after the `:keepalt` command in the
cmdmod_info_tab table. Due to this, the binary search may not work
correctly, so let's revert that part of patch v9.1.0352.

fixes: #15305
closes: #15336

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2024-07-26 19:13:55 +02:00
parent 325420ebe4
commit 70a11a6bf6
3 changed files with 43 additions and 61 deletions
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81
src/ex_docmd.c
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@@ -19,10 +19,6 @@ static int ex_pressedreturn = FALSE;
# define ex_hardcopy ex_ni
#endif
#if defined(FEAT_EVAL) || defined(PROTO)
static int cmp_cmdmod_info(const void *a, const void *b);
#endif
#ifdef FEAT_EVAL
static char_u *do_one_cmd(char_u **, int, cstack_T *, char_u *(*fgetline)(int, void *, int, getline_opt_T), void *cookie);
#else
@@ -4050,16 +4046,6 @@ static cmdmod_info_T cmdmod_info_tab[] = {
{"vim9cmd", 4, FALSE}
}; // cmdmod_info_tab
// compare two cmdmod_info_T structs by case sensitive name with length
static int
cmp_cmdmod_info(const void *a, const void *b)
{
cmdmod_info_T *cm1 = (cmdmod_info_T *)a;
cmdmod_info_T *cm2 = (cmdmod_info_T *)b;
return STRNCMP(cm1->name, cm2->name, cm2->minlen);
}
/*
* Return length of a command modifier (including optional count).
* Return zero when it's not a modifier.
@@ -4067,36 +4053,20 @@ cmp_cmdmod_info(const void *a, const void *b)
int
modifier_len(char_u *cmd)
{
int i, j;
char_u *p = cmd;
cmdmod_info_T target;
cmdmod_info_T *entry;
if (VIM_ISDIGIT(*cmd))
p = skipwhite(skipdigits(cmd + 1));
// only lowercase characters can match
if (!ASCII_ISLOWER(*p))
return 0;
target.name = (char *)p;
target.minlen = 0; // not used, see cmp_cmdmod_info()
target.has_count = FALSE;
entry = (cmdmod_info_T *)bsearch(&target, &cmdmod_info_tab, ARRAY_LENGTH(cmdmod_info_tab), sizeof(cmdmod_info_tab[0]), cmp_cmdmod_info);
if (entry != NULL)
for (i = 0; i < (int)ARRAY_LENGTH(cmdmod_info_tab); ++i)
{
int i;
for (i = entry->minlen; p[i] != NUL; ++i)
{
if (p[i] != entry->name[i])
for (j = 0; p[j] != NUL; ++j)
if (p[j] != cmdmod_info_tab[i].name[j])
break;
}
if (!ASCII_ISALPHA(p[i]) && i >= entry->minlen && (p == cmd || entry->has_count))
return i + (int)(p - cmd);
if (!ASCII_ISALPHA(p[j]) && j >= cmdmod_info_tab[i].minlen
&& (p == cmd || cmdmod_info_tab[i].has_count))
return j + (int)(p - cmd);
}
return 0;
}
@@ -4110,33 +4080,18 @@ cmd_exists(char_u *name)
{
exarg_T ea;
int full = FALSE;
int i;
int j;
char_u *p;
// only lowercase characters can match
if (ASCII_ISLOWER(*name))
// Check command modifiers.
for (i = 0; i < (int)ARRAY_LENGTH(cmdmod_info_tab); ++i)
{
cmdmod_info_T target;
cmdmod_info_T *entry;
target.name = (char *)name;
target.minlen = 0; // not used, see cmp_cmdmod_info()
target.has_count = FALSE;
// Check command modifiers.
entry = (cmdmod_info_T *)bsearch(&target, &cmdmod_info_tab, ARRAY_LENGTH(cmdmod_info_tab), sizeof(cmdmod_info_tab[0]), cmp_cmdmod_info);
if (entry != NULL)
{
int i;
for (i = entry->minlen; name[i] != NUL; ++i)
{
if (name[i] != entry->name[i])
break;
}
if (name[i] == NUL && i >= entry->minlen)
return (entry->name[i] == NUL ? 2 : 1);
}
for (j = 0; name[j] != NUL; ++j)
if (name[j] != cmdmod_info_tab[i].name[j])
break;
if (name[j] == NUL && j >= cmdmod_info_tab[i].minlen)
return (cmdmod_info_tab[i].name[j] == NUL ? 2 : 1);
}
// Check built-in commands and user defined commands.
@@ -5993,6 +5948,10 @@ get_command_name(expand_T *xp UNUSED, int idx)
{
if (idx >= (int)CMD_SIZE)
return expand_user_command_name(idx);
// the following are no real commands
if (STRNCMP(cmdnames[idx].cmd_name, "{", 1) == 0 ||
STRNCMP(cmdnames[idx].cmd_name, "}", 1) == 0)
return (char_u *)"";
return cmdnames[idx].cmd_name;
}