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extract name

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This commit is contained in:
Isha
2014-03-02 23:24:31 +00:00
parent a119e86fd0
commit 02525f258e
3 changed files with 142 additions and 134 deletions
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ext/liquid/variable.c
+43 -35
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@@ -21,47 +21,55 @@ static VALUE rb_variable_allocate(VALUE klass)
static int skip_whitespace(char * str, int len)
{
int i = 0; char * ptr = str;
while (i < len && !isspace(*ptr))
i++;
while (i < len && isspace(*ptr))
{i++; ptr++;}
return i;
}
static char * cpy_string(char * str, int len)
static char * get_quoted_fragment(char * cursor, int len, VALUE self)
{
char * s = malloc(len*sizeof(char) + 1);
int i = 0;
while (i<len) s[i] = str[i];
s[i] = '\0';
return s;
}
static char * get_quoted_fragment(char * cursor, int len, char * name)
{
int count = 0; int start = -1, end = -1;
int count = 0; int start = -1, end = -1; char quoted = -1;
while (count < len) {
switch (cursor[count]) {
case '"':
if (start == -1) start = count;
else {end = count+1; goto form_name;}
if (start == -1) {start = count; quoted = '"';}
else if (cursor[start] == '"') {end = count; goto form_name;}
else if (quoted == -1) quoted = '"';
else if (quoted == '"') quoted = -1;
break;
case '\'':
if (start == -1) start = count;
else {end = count+1; goto form_name;}
if (start == -1) {start = count; quoted = '\'';}
else if (cursor[start] == '\'') {end = count; goto form_name;}
else if (quoted == -1) quoted = '\'';
else if (quoted == '\'') quoted = -1;
break;
case '|':
case ',':
case '\n':
case '\r':
case '\f':
case '\t':
case '\v':
case ' ':
if (start != -1 && quoted == -1) {end = count-1; goto form_name;}
break;
default:
if (cursor[count] != '|' && cursor[count] != ':' && cursor[count] != ',' && cursor[count] != ' ' && !isspace(cursor[count]))
{ if (start == -1) start = count; }
else
{ end = count+1; goto form_name;}
if (start == -1) start = count;
break;
}
count++;
}
form_name:
if (end > start) name = cpy_string(&cursor[start], end-start);
if (count == len && start != -1 && end == -1) end = len-1;
if (end != -1) return &cursor[end];
else return NULL;
form_name:
if (end > start) {
rb_iv_set(self, "@name", rb_str_new(&cursor[start], end-start+1));
return &cursor[end+1];
} else {
rb_iv_set(self, "@name", Qnil);
return NULL;
}
}
static void rb_variable_lax_parse_new(VALUE self, VALUE m)
@@ -70,19 +78,19 @@ static void rb_variable_lax_parse_new(VALUE self, VALUE m)
int markup_len = RSTRING_LEN(m);
char * cursor = markup; int count = 0;
/* Extract name */
char * name;
count += skip_whitespace(markup, markup_len); cursor = markup+count;
cursor = get_quoted_fragment(cursor, markup_len-count, name);
count += skip_whitespace(markup, markup_len);
cursor = markup+count;
cursor = get_quoted_fragment(cursor, markup_len-count, self);
if (name == NULL) rb_iv_set(self, "@name", Qnil);
else
{
rb_iv_set(self, "@name", rb_str_new2(name));
// if (*name == NULL) rb_iv_set(self, "@name", Qnil);
// else
// {
// rb_iv_set(self, "@name", rb_str_new2(*name));
/* Extract filters */
}
// /* Extract filters */
// }
}
void init_liquid_variable()