parseconfig: dash options can't specified with colon or equals

.IP "-K, --config <config file>"

Specify which config file to read curl arguments from. The config file is a

text file in which command line arguments can be written which then will be

used as if they were written on the actual command line. Options and their

parameters must be specified on the same config file line, separated by

whitespace, colon, the equals sign or any combination thereof (however,

the preferred separator is the equals sign). If the parameter is to contain

whitespace, the parameter must be enclosed within quotes. Within double

quotes, the following escape sequences are available: \\\\, \\", \\t, \\n,

\\r and \\v. A backslash preceding any other letter is ignored. If the

first column of a config line is a '#' character, the rest of the line will be

treated as a comment. Only write one option per physical line in the config

file.

used as if they were written on the actual command line.

Options and their parameters must be specified on the same config file line,

separated by whitespace, colon, or the equals sign. Long option names can

optionally be given in the config file without the initial double dashes and

if so, the colon or equals characters can be used as separators. If the option

is specified with one or two dashes, there can be no colon or equals character

between the option and its parameter.

If the parameter is to contain whitespace, the parameter must be enclosed

within quotes. Within double quotes, the following escape sequences are

available: \\\\, \\", \\t, \\n, \\r and \\v. A backslash preceding any other

letter is ignored. If the first column of a config line is a '#' character,

the rest of the line will be treated as a comment. Only write one option per

physical line in the config file.

Specify the filename to -K, --config as '-' to make curl read the file from

stdin.

url = "http://curl.haxx.se/docs/"

Long option names can optionally be given in the config file without the

initial double dashes.

When curl is invoked, it always (unless \fI-q\fP is used) checks for a default

config file and uses it if found. The default config file is checked for in

the following places in this order:

#include "memdebug.h" /* keep this as LAST include */

#define CURLRC DOT_CHAR "curlrc"

#define ISSEP(x) (((x) == '=') || ((x) == ':'))

/* only acknowledge colon or equals as separators if the option was not

   specified with an initial dash! */

#define ISSEP(x,dash) (!dash && (((x) == '=') || ((x) == ':')))

static const char *unslashquote(const char *line, char *param);

static char *my_get_line(FILE *fp);

    char *param;

    int lineno = 0;

    bool alloced_param;

    bool dashed_option;

    while(NULL != (aline = my_get_line(file))) {

      lineno++;

      /* the option keywords starts here */

      option = line;

      while(*line && !ISSPACE(*line) && !ISSEP(*line))

      /* the option starts with a dash? */

      dashed_option = option[0]=='-'?TRUE:FALSE;

      while(*line && !ISSPACE(*line) && !ISSEP(*line, dashed_option))

        line++;

      /* ... and has ended here */

#endif

      /* pass spaces and separator(s) */

      while(*line && (ISSPACE(*line) || ISSEP(*line)))

      while(*line && (ISSPACE(*line) || ISSEP(*line, dashed_option)))

        line++;

      /* the parameter starts here (unless quoted) */