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fastfetch: pretty printing --help

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李通洲 2023-11-02 14:06:53 +08:00
parent 0ffbb8c364
commit d64716ab74
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GPG Key ID: 269AD4F5325A22A3
1 changed files with 85 additions and 2 deletions
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87
src/fastfetch.c
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@ -40,10 +40,93 @@ static void printCommandFormatHelp(const char* command)
fprintf(stderr, "Error: Module '%s' is not supported\n", type.chars); fprintf(stderr, "Error: Module '%s' is not supported\n", type.chars);
} }
static inline void printCommandHelp(const char* command) static void printCommandHelp(const char* command)
{ {
if(command == NULL) if(command == NULL)
puts(FASTFETCH_DATATEXT_HELP); {
static char input[] = FASTFETCH_DATATEXT_HELP;
if (isatty(STDOUT_FILENO))
{
char* token = strtok(input, "\n");
puts(token);
while ((token = strtok(NULL, "\n")))
{
// handle empty lines
char* back = token;
while (*--back != '\0');
ffPrintCharTimes('\n', (uint32_t) (token - back - 1));
if (isalpha(*token)) // highlight subjects
{
char* colon = strchr(token, ':');
if (colon)
{
fputs("\e[1;4m", stdout); // Bold + Underline
fwrite(token, 1, (uint32_t) (colon - token), stdout);
fputs("\e[m", stdout);
if (colon - token == 5 && memcmp(token, "Usage", 5) == 0)
{
char* cmd = strstr(colon, "fastfetch ");
if (cmd)
{
fwrite(colon, 1, (uint32_t) (cmd - colon), stdout);
fputs("\e[1mfastfetch \e[m", stdout);
cmd += strlen("fastfetch ");
if (*cmd == '<')
{
char* gt = strchr(cmd, '>');
if (gt)
{
fputs("\e[3m", stdout);
fwrite(cmd, 1, (uint32_t) (gt - cmd + 1), stdout);
fputs("\e[m", stdout);
cmd = gt + 1;
}
}
puts(cmd);
continue;
}
}
puts(colon);
continue;
}
}
else if (*token == ' ') // highlight options. All options are indented
{
char* dash = strchr(token, '-'); // start of an option
if (dash)
{
char* colon = strchr(dash, ':'); // end of an option
if (colon)
{
*colon = '\0';
char* lt = strrchr(dash, '<');
*colon = ':';
fputs("\e[1m", stdout); // Bold
fwrite(token, 1, (uint32_t) ((lt ? lt : colon) - token), stdout);
fputs("\e[m", stdout);
if (lt)
{
fputs("\e[3m", stdout);
fwrite(lt, 1, (uint32_t) (colon - lt), stdout);
fputs("\e[m", stdout);
}
puts(colon);
continue;
}
}
}
puts(token);
}
}
else
{
puts(input);
}
}
else if(ffStrEqualsIgnCase(command, "color")) else if(ffStrEqualsIgnCase(command, "color"))
puts(FASTFETCH_DATATEXT_HELP_COLOR); puts(FASTFETCH_DATATEXT_HELP_COLOR);
else if(ffStrEqualsIgnCase(command, "format")) else if(ffStrEqualsIgnCase(command, "format"))