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[client,common] improve cmdline help formatter

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break on listings (*)
This commit is contained in:
Armin Novak 2023-12-20 17:06:17 +01:00 committed by akallabeth
parent f7640288f7
commit 89bd55e1f6
1 changed files with 87 additions and 34 deletions
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121
client/common/cmdline.c
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@ -308,66 +308,122 @@ static void freerdp_client_print_scancodes(void)
}
}
static BOOL is_delimiter(const char* delimiters, char c)
static BOOL is_delimiter(char c, const char* delimiters)
{
char d;
while ((d = *delimiters++) != '\0')
{
if (d == c)
if (c == d)
return TRUE;
}
return FALSE;
}
static char* print_token(char* text, size_t start_offset, size_t* current, size_t limit,
const char* delimiters)
static const char* get_last(const char* start, size_t len, const char* delimiters)
{
int rc;
size_t len = strlen(text);
const char* last = NULL;
for (size_t x = 0; x < len; x++)
{
char c = start[x];
if (is_delimiter(c, delimiters))
last = &start[x];
}
return last;
}
static SSIZE_T next_delimiter(const char* text, size_t len, size_t max, const char* delimiters)
{
if (len < max)
return -1;
const char* last = get_last(text, max, delimiters);
if (!last)
return -1;
return (SSIZE_T)(last - text);
}
static SSIZE_T forced_newline_at(const char* text, size_t len, size_t limit,
const char* force_newline)
{
char d;
while ((d = *force_newline++) != '\0')
{
const char* tok = strchr(text, d);
if (tok)
{
const size_t offset = tok - text;
if ((offset > len) || (offset > limit))
continue;
return (SSIZE_T)(offset);
}
}
return -1;
}
static BOOL print_align(size_t start_offset, size_t* current)
{
WINPR_ASSERT(current);
if (*current < start_offset)
{
rc = printf("%*c", (int)(start_offset - *current), ' ');
const int rc = printf("%*c", (int)(start_offset - *current), ' ');
if (rc < 0)
return NULL;
return FALSE;
*current += (size_t)rc;
}
return TRUE;
}
if (*current + len > limit)
{
size_t x;
static char* print_token(char* text, size_t start_offset, size_t* current, size_t limit,
const char* delimiters, const char* force_newline)
{
int rc;
const size_t tlen = strnlen(text, limit);
size_t len = tlen;
const SSIZE_T force_at = forced_newline_at(text, len, limit - *current, force_newline);
BOOL isForce = (force_at > 0);
for (x = MIN(len, limit - start_offset); x > 1; x--)
{
if (is_delimiter(delimiters, text[x]))
{
printf("%.*s\n", (int)x, text);
*current = 0;
return &text[x];
}
}
if (isForce)
len = MIN(len, (size_t)force_at);
if (!print_align(start_offset, current))
return NULL;
const SSIZE_T delim = next_delimiter(text, len, limit - *current, delimiters);
const BOOL isDelim = delim > 0;
if (isDelim)
{
len = MIN(len, (size_t)delim + 1);
}
rc = printf("%s", text);
rc = printf("%.*s", (int)len, text);
if (rc < 0)
return NULL;
if (isForce || isDelim)
{
printf("\n");
*current = 0;
const size_t offset = len + (isForce ? 1 : 0);
return &text[offset];
}
*current += (size_t)rc;
return NULL;
if (tlen == (size_t)rc)
return NULL;
return &text[(size_t)rc];
}
static size_t print_optionals(const char* text, size_t start_offset, size_t current)
{
const size_t limit = 80;
char* str = _strdup(text);
char* cur = print_token(str, start_offset, &current, limit, "[], ");
char* cur = str;
while (cur)
{
cur++;
cur = print_token(cur, start_offset + 1, &current, limit, "[], ");
}
while ((cur = print_token(cur, start_offset + 1, &current, limit, "[], ", "\r\n")) != NULL)
;
free(str);
return current;
@ -377,13 +433,10 @@ static size_t print_description(const char* text, size_t start_offset, size_t cu
{
const size_t limit = 80;
char* str = _strdup(text);
char* cur = print_token(str, start_offset, &current, limit, " ");
char* cur = str;
while (cur)
{
cur++;
cur = print_token(cur, start_offset, &current, limit, " ");
}
while ((cur = print_token(cur, start_offset, &current, limit, " ", "\r\n")) != NULL)
;
free(str);
current += (size_t)printf("\n");