void
_gtk_source_regex_fetch_named_pos (GtkSourceRegex *regex,
const gchar *text,
const gchar *name,
gint *start_pos, /* character offsets */
gint *end_pos) /* character offsets */
{
gint byte_start_pos, byte_end_pos;
g_assert (regex->resolved);
if (!g_match_info_fetch_named_pos (regex->u.regex.match, name, &byte_start_pos, &byte_end_pos))
{
if (start_pos != NULL)
*start_pos = -1;
if (end_pos != NULL)
*end_pos = -1;
}
else
{
if (start_pos != NULL)
*start_pos = g_utf8_pointer_to_offset (text, text + byte_start_pos);
if (end_pos != NULL)
*end_pos = g_utf8_pointer_to_offset (text, text + byte_end_pos);
}
}
static VALUE
rg_fetch_pos(VALUE self, VALUE rb_match_reference)
{
gint start_pos = 0;
gint end_pos = 0;
gboolean fetched = FALSE;
switch (TYPE(rb_match_reference)) {
case RUBY_T_FIXNUM:
{
gint match_num;
match_num = NUM2INT(rb_match_reference);
fetched = g_match_info_fetch_pos(_SELF(self), match_num,
&start_pos, &end_pos);
}
break;
case RUBY_T_STRING:
case RUBY_T_SYMBOL:
{
const gchar *match_name;
match_name = RVAL2CSTR_ACCEPT_SYMBOL(rb_match_reference);
fetched = g_match_info_fetch_named_pos(_SELF(self), match_name,
&start_pos, &end_pos);
}
break;
default:
rb_raise(rb_eArgError, "Expected a String, a Symbol or an Integer");
break;
}
if (!fetched) {
return Qnil;
}
return rb_ary_new_from_args(2, INT2NUM(start_pos), INT2NUM(end_pos));
}
/**
* rakia_codec_param_parse_generic:
* @fmtp: a string value with the parameter description
* @out: the parameter map to populate
*
* Parses parameters formatted as a semicolon separated list of
* <replaceable>parameter</replaceable><literal>=</literal><replaceable>value</replaceable>
* pairs, as recommended in IETF RFC 4855 Section 3.
*/
static void
rakia_codec_param_parse_generic (const gchar *fmtp, TpMediaStreamType media_type,
RakiaSipCodec *codec)
{
GMatchInfo *match = NULL;
gint pos;
gint value_start;
gint value_end;
if (fmtp == NULL)
return;
pos = 0;
/* Fast path for trivial cases, not involving the regex engine */
while (g_ascii_isspace (fmtp[pos]))
++pos;
if (!fmtp[pos])
return;
g_assert (fmtp_attr_regex != NULL);
g_regex_match_full (fmtp_attr_regex,
fmtp, -1, pos, G_REGEX_MATCH_ANCHORED, &match, NULL);
while (g_match_info_matches (match))
{
gchar *name;
gchar *value;
name = g_match_info_fetch_named (match, FMTP_MATCH_NAME_PARAM);
g_match_info_fetch_named_pos (match, FMTP_MATCH_NAME_VALUE,
&value_start, &value_end);
if (value_end - 1 > value_start
&& fmtp[value_start] == '\"' && fmtp[value_end - 1] == '\"')
{
value = rakia_unquote_string (fmtp + value_start,
value_end - value_start);
}
else
{
value = g_strndup (fmtp + value_start,
value_end - value_start);
}
rakia_sip_codec_add_param (codec, name, value);
g_match_info_fetch_pos (match, 0, NULL, &pos);
if (!fmtp[pos])
break;
g_match_info_next (match, NULL);
}
g_match_info_free (match);
if (fmtp[pos])
MESSAGE ("failed to parse part of format parameters"
" as an attribute-value list: %s", &fmtp[pos]);
}
