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authorMatthias Schiffer <mschiffer@universe-factory.net>2015-03-27 03:38:01 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2015-03-27 03:55:26 +0100
commit8de90acc6791a62d4b2e48e9bd05daa0d5cfe4b6 (patch)
tree40cea5bf09f881c2a54063721aa52b2db811bad7 /parser.cpp
parent09972613c44cf9968afc17d7294aa5e77fc29b9c (diff)
downloadsolar-8de90acc6791a62d4b2e48e9bd05daa0d5cfe4b6.tar
solar-8de90acc6791a62d4b2e48e9bd05daa0d5cfe4b6.zip
Generate items from grammar
Diffstat (limited to 'parser.cpp')
-rw-r--r--parser.cpp114
1 files changed, 0 insertions, 114 deletions
diff --git a/parser.cpp b/parser.cpp
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--- a/parser.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-
-#include "parser.hpp"
-
-#include <cstdio>
-#include <cstdlib>
-
-
-namespace solar {
-
-enum parser_state {
- STATE_INIT,
- STATE_RULE_BAR,
- STATE_RULE_EQUAL,
- STATE_RULE,
-};
-
-struct parser {
- parser_state state;
-};
-
-parser_t * parser_alloc(void) {
- parser_t *parser = (parser_t *)std::malloc(sizeof(parser_t));
- parser->state = STATE_INIT;
-
- return parser;
-}
-
-int parser_parse(parser_t *parser, int token, const value_t *value, state_t *state) {
- switch (parser->state) {
- case STATE_INIT:
- switch (token) {
- case TOK_NONTERM:
- parser->state = STATE_RULE_BAR;
- state->openRule(value->str);
- return 1;
-
- case 0:
- return 0;
- }
-
- break;
-
- case STATE_RULE_BAR:
- parser->state = STATE_RULE_EQUAL;
- if (token == '|')
- return 1;
-
- break;
-
- case STATE_RULE_EQUAL:
- if (token == '=') {
- parser->state = STATE_RULE;
- return 1;
- }
-
- break;
-
- case STATE_RULE:
- switch (token) {
- case TOK_NONTERM:
- state->addRuleNonterminal(value->str);
- return 1;
-
- case TOK_TERM:
- state->addRuleTerminal(value->str);
- return 1;
-
- case TOK_CHAR:
- state->addRuleTerminal(value->number);
- return 1;
-
- case TOK_BLOCK:
- case ';':
- state->closeRule();
- parser->state = STATE_INIT;
- return 1;
- }
-
- break;
- }
-
- return -1;
-}
-
-void parser_free(parser_t *parser) {
- std::free(parser);
-}
-
-}