Experiments/libabacus
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Add sanitization of operators.

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This commit is contained in:
Danila Fedorin 2018-02-17 20:31:30 -08:00
parent 2e89a338df
commit 71f7711f92
1 changed files with 12 additions and 1 deletions
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13
src/libabacus.c
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@ -8,7 +8,17 @@ libab_result libab_init(libab* ab) {
return libab_lexer_init(&ab->lexer);
}
void _sanitize(char* to, const char* from, size_t buffer_size) {
size_t index = 0;
while(*from && index < (buffer_size - 2)) {
if(*from == '+' || *from == '*' || *from == '\\') to[index++] = '\\';
to[index++] = *(from++);
}
to[index] = '\0';
}
libab_result _register_operator(libab* ab, const char* op, int token_type, int precedence, int associativity, libab_function_ptr func) {
char op_buffer[8];
libab_result result = LIBAB_SUCCESS;
libab_table_entry* new_entry;
if((new_entry = malloc(sizeof(*new_entry)))) {
@ -20,7 +30,8 @@ libab_result _register_operator(libab* ab, const char* op, int token_type, int p
}
if(result == LIBAB_SUCCESS) {
result = libab_convert_lex_result(eval_config_add(&ab->lexer.config, op, token_type));
_sanitize(op_buffer, op, 8);
result = libab_convert_lex_result(eval_config_add(&ab->lexer.config, op_buffer, token_type));
}
if(result == LIBAB_SUCCESS) {