mirror of
https://github.com/lexborisov/Modest
synced 2024-11-29 00:43:14 +03:00
521 lines
18 KiB
C
521 lines
18 KiB
C
/*
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Copyright (C) 2016 Alexander Borisov
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Author: lex.borisov@gmail.com (Alexander Borisov)
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*/
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#include "mycss/an_plus_b.h"
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#include "myhtml/utils/resources.h"
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mycss_an_plus_b_t * mycss_an_plus_b_create(void)
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{
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return (mycss_an_plus_b_t*)myhtml_calloc(1, sizeof(mycss_an_plus_b_t));
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}
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mycss_status_t mycss_an_plus_b_init(mycss_entry_t* entry, mycss_an_plus_b_t* anb)
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{
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return MyCSS_STATUS_OK;
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}
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mycss_status_t mycss_an_plus_b_clean_all(mycss_an_plus_b_t* anb)
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{
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return MyCSS_STATUS_OK;
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}
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mycss_an_plus_b_t * mycss_an_plus_b_destroy(mycss_an_plus_b_t* anb, bool self_destroy)
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{
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if(anb == NULL)
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return NULL;
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if(self_destroy) {
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myhtml_free(anb);
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return NULL;
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}
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return anb;
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}
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/////////////////////////////////////////////////////////
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//// An+B Entry
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////
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/////////////////////////////////////////////////////////
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mycss_an_plus_b_entry_t * mycss_an_plus_b_entry_create(mycss_entry_t* entry)
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{
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return (mycss_an_plus_b_entry_t*)mchar_async_malloc(entry->mchar,
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entry->mchar_value_node_id,
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sizeof(mycss_an_plus_b_entry_t));
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}
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void mycss_an_plus_b_entry_clean_all(mycss_an_plus_b_entry_t* anb_entry)
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{
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memset(anb_entry, 0, sizeof(mycss_an_plus_b_entry_t));
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}
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mycss_an_plus_b_entry_t * mycss_an_plus_b_entry_destroy(mycss_entry_t* entry, mycss_an_plus_b_entry_t* anb_entry, bool self_destroy)
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{
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if(anb_entry == NULL)
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return NULL;
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if(self_destroy) {
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mchar_async_free(entry->mchar, entry->mchar_value_node_id, (char*)anb_entry);
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return NULL;
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}
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return anb_entry;
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}
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/////////////////////////////////////////////////////////
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//// An+B Parser
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////
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/////////////////////////////////////////////////////////
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void mycss_an_plus_b_parser_expectations_error(mycss_entry_t* entry)
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{
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mycss_an_plus_b_current_entry(entry)->is_broken = true;
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}
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/////////////////////////////////////////////////////////
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//// An+B Serialization
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////
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/////////////////////////////////////////////////////////
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void mycss_an_plus_b_serialization(mycss_an_plus_b_entry_t* anb_entry, mycss_callback_serialization_f callback, void* context)
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{
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char data[512];
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if(anb_entry->a != 0) {
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int len = snprintf(data, 512, "%ld", anb_entry->a);
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if(len > 0)
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callback(data, (size_t)len, context);
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}
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callback("n", 1, context);
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if(anb_entry->b != 0) {
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if(anb_entry->b >= 0)
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callback("+", 1, context);
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int len = snprintf(data, 512, "%ld", anb_entry->b);
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if(len > 0)
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callback(data, (size_t)len, context);
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}
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}
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/////////////////////////////////////////////////////////
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//// An+B State
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////
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/////////////////////////////////////////////////////////
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bool mycss_an_plus_b_state_anb_begin(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_entry_create(entry);
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mycss_an_plus_b_entry_clean_all(anb_entry);
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*entry->anb->entry = anb_entry;
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return mycss_an_plus_b_state_anb(entry, token, true);
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}
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bool mycss_an_plus_b_state_anb(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_current_entry(entry);
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switch (token->type) {
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case MyCSS_TOKEN_TYPE_WHITESPACE:
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break;
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case MyCSS_TOKEN_TYPE_IDENT: {
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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if(myhtml_strncasecmp(str.data, "-n-", 3) == 0)
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{
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anb_entry->a = -1;
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if(str.length == 3) {
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anb_entry->b = -1;
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entry->parser = mycss_an_plus_b_state_anb_plus_n_hyphen;
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myhtml_string_destroy(&str, false);
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return true;
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}
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/* -n-* */
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size_t len = str.length - 2;
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if(mycss_convert_data_to_integer(&str.data[2], len, &anb_entry->b) != len) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_hyphen_n_hyphen_asterisk_end");
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strncasecmp(str.data, "-n", 2) == 0) {
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_hyphen_n_end")
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anb_entry->a = -1;
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if(str.length == 2) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n;
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myhtml_string_destroy(&str, false);
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return true;
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}
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size_t len = str.length - 2;
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if(mycss_convert_data_to_integer(&str.data[2], len, &anb_entry->b) != len) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strncasecmp(str.data, "n-", 2) == 0)
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{
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anb_entry->a = 1;
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if(str.length == 2) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n_hyphen;
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myhtml_string_destroy(&str, false);
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return true;
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}
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size_t len = str.length - 1;
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if(mycss_convert_data_to_integer(&str.data[1], len, &anb_entry->b) != len) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_n");
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strncasecmp(str.data, "n", 1) == 0)
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{
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anb_entry->a = 1;
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if(str.length == 1) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n;
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myhtml_string_destroy(&str, false);
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return true;
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}
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size_t len = str.length - 1;
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if(mycss_convert_data_to_integer(&str.data[1], len, &anb_entry->b) != len) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_n");
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strcasecmp(str.data, "even") == 0) {
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anb_entry->a = 2;
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anb_entry->b = 0;
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_e_v_e_n")
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strcasecmp(str.data, "odd") == 0) {
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anb_entry->a = 2;
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anb_entry->b = 1;
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_o_d_d")
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entry->parser = entry->parser_switch;
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}
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else {
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myhtml_string_destroy(&str, false);
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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myhtml_string_destroy(&str, false);
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break;
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}
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case MyCSS_TOKEN_TYPE_DELIM: {
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if(*token->data == '+') {
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anb_entry->a = 1;
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entry->parser = mycss_an_plus_b_state_anb_plus;
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}
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else {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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break;
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}
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case MyCSS_TOKEN_TYPE_NUMBER: {
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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mycss_convert_data_to_integer(str.data, str.length, &anb_entry->b);
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myhtml_string_destroy(&str, false);
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_number")
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entry->parser = entry->parser_switch;
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break;
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}
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case MyCSS_TOKEN_TYPE_DIMENSION: {
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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size_t consumed_len = mycss_convert_data_to_integer(str.data, str.length, &anb_entry->a);
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if(myhtml_strncasecmp(&str.data[consumed_len], "n-", 2) == 0)
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{
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size_t rem = str.length - consumed_len;
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if(rem == 2) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n_hyphen;
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myhtml_string_destroy(&str, false);
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return true;
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}
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rem -= 1;
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if(mycss_convert_data_to_integer(&str.data[(consumed_len + 1)], rem, &anb_entry->b) != rem) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_n_hyphen_asterisk_end")
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strncasecmp(&str.data[consumed_len], "n", 1) == 0)
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{
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size_t rem = (str.length - consumed_len) - 1;
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if(rem == 0) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n;
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myhtml_string_destroy(&str, false);
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return true;
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}
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if(mycss_convert_data_to_integer(&str.data[(consumed_len + 1)], rem, &anb_entry->b) != rem) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_n_end")
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entry->parser = entry->parser_switch;
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}
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else {
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myhtml_string_destroy(&str, false);
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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myhtml_string_destroy(&str, false);
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break;
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}
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default: {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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}
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return true;
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}
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bool mycss_an_plus_b_state_anb_plus(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_current_entry(entry);
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switch (token->type) {
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case MyCSS_TOKEN_TYPE_IDENT: {
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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if(myhtml_strncasecmp(str.data, "n-", 2) == 0)
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{
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if(str.length == 2) {
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entry->parser = mycss_an_plus_b_state_anb_plus_n_hyphen;
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myhtml_string_destroy(&str, false);
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return true;
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}
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size_t len = str.length - 1;
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if(mycss_convert_data_to_integer(&str.data[1], len, &anb_entry->b) != len) {
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/* parse error */
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anb_entry->is_broken = true;
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}
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_plus_n_hyphen_asterisk_end")
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entry->parser = entry->parser_switch;
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}
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else if(myhtml_strncasecmp(str.data, "n", 1) == 0) {
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_plus_n")
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entry->parser = mycss_an_plus_b_state_anb_plus_n;
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}
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else {
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myhtml_string_destroy(&str, false);
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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myhtml_string_destroy(&str, false);
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break;
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}
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default: {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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}
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return true;
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}
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bool mycss_an_plus_b_state_anb_plus_n_hyphen(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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if(token->type == MyCSS_TOKEN_TYPE_WHITESPACE)
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return true;
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_current_entry(entry);
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if(token->type == MyCSS_TOKEN_TYPE_NUMBER) {
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/* begin from 0-9 */
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if(myhtml_string_chars_num_map[ (const unsigned char)(*token->data) ] != 0xff)
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{
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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long res;
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mycss_convert_data_to_integer(str.data, str.length, &res);
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anb_entry->b = -res;
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_plus_n_hyphen_zero_hyphen_nine_end")
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entry->parser = entry->parser_switch;
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myhtml_string_destroy(&str, false);
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}
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else {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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}
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else {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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return true;
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}
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bool mycss_an_plus_b_state_anb_plus_n(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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if(token->type == MyCSS_TOKEN_TYPE_WHITESPACE)
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return true;
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_current_entry(entry);
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switch (token->type) {
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case MyCSS_TOKEN_TYPE_DELIM: {
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if(*token->data == '+') {
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entry->parser = mycss_an_plus_b_state_anb_plus_n_plus;
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}
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else if(*token->data == '-') {
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entry->parser = mycss_an_plus_b_state_anb_plus_n_hyphen;
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}
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else {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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break;
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}
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case MyCSS_TOKEN_TYPE_NUMBER: {
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if(*token->data == '+' || *token->data == '-')
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{
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
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mycss_convert_data_to_integer(str.data, str.length, &anb_entry->b);
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MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_plus_n_begin_plus_vertical_bar_hyphen")
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entry->parser = entry->parser_switch;
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myhtml_string_destroy(&str, false);
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}
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else {
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mycss_an_plus_b_parser_expectations_error(entry);
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entry->parser = entry->parser_switch;
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return false;
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}
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break;
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}
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default: {
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entry->parser = entry->parser_switch;
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return false;
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}
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}
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return true;
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}
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bool mycss_an_plus_b_state_anb_plus_n_plus(mycss_entry_t* entry, mycss_token_t* token, bool last_response)
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{
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if(token->type == MyCSS_TOKEN_TYPE_WHITESPACE)
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return true;
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mycss_an_plus_b_entry_t *anb_entry = mycss_an_plus_b_current_entry(entry);
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if(token->type == MyCSS_TOKEN_TYPE_NUMBER) {
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/* begin from 0-9 */
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if(myhtml_string_chars_num_map[ (const unsigned char)(*token->data) ] != 0xff)
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{
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myhtml_string_t str;
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mycss_token_data_to_string(entry, token, &str, true, false);
|
|
|
|
mycss_convert_data_to_integer(str.data, str.length, &anb_entry->b);
|
|
|
|
MyCSS_DEBUG_MESSAGE("mycss_an_plus_b_state_anb_plus_n_plus_zero_hyphen_nine_end")
|
|
entry->parser = entry->parser_switch;
|
|
|
|
myhtml_string_destroy(&str, false);
|
|
}
|
|
else {
|
|
mycss_an_plus_b_parser_expectations_error(entry);
|
|
entry->parser = entry->parser_switch;
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
mycss_an_plus_b_parser_expectations_error(entry);
|
|
entry->parser = entry->parser_switch;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|