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CRTerm* cr_term_parse_expression_from_buf ( const guchar *  a_buf,
enum CREncoding  a_encoding 

Parses an expresion as defined by the css2 spec and builds the expression as a list of terms.

a_buf the buffer to parse.
a pointer to the first term of the expression or NULL if parsing failed.

Definition at line 104 of file cr-term.c.

References cr_parser_destroy(), cr_parser_new_from_buf(), cr_parser_parse_expr(), cr_parser_try_to_skip_spaces_and_comments(), and cr_term_destroy().

        CRTerm *result = NULL;
        enum CRStatus status = CR_OK;

        g_return_val_if_fail (a_buf, NULL);

        CRParser *parser = cr_parser_new_from_buf (
                                                              strlen ((char *)a_buf),
                                          a_encoding, FALSE);
        g_return_val_if_fail (parser, NULL);

        status = cr_parser_try_to_skip_spaces_and_comments (parser);
        if (status != CR_OK) {
                goto cleanup;
        status = cr_parser_parse_expr (parser, &result);
        if (status != CR_OK) {
                if (result) {
                        cr_term_destroy (result);
                        result = NULL;

        if (parser) {
                cr_parser_destroy (parser);
                parser = NULL;

        return result;

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