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#include "include/lexer.h"
#include "include/token.h"
#include <stdlib.h>
#include <string.h>
lexer_T* lexer_init(char* content) {
lexer_T* lexer = calloc(1, sizeof(struct LEXER_STRUC));
lexer->content = content;
lexer->i = 0;
lexer->c = content[lexer->i];
return lexer;
}
void lexer_next(lexer_T* lexer) {
// if not at end of line or file
if (lexer->c != '\0' && lexer->i < strlen(lexer->content)) {
lexer->i += 1; // advance index 1 character
lexer->c = lexer->content[lexer->i]; // set character w/ index
}
}
void lexer_pass(lexer_T* lexer) {
while (lexer->c == ' ' ||
lexer->c == '\t' ||
lexer->c == '\n') {
lexer_next(lexer);
}
}
token_T* lexer_get_next_token(lexer_T* lexer) {
while (lexer->c != '\0' && lexer->i < strlen(lexer->content)) {
if (lexer->c == ' ' ||
lexer->c == '\t' ||
lexer->c == '\n') {
lexer_pass(lexer);
}
switch (lexer->c) {
case '"': return lexer_get_string(lexer); break;
case '=': return lexer_next_token(
lexer,
token_init(
TOKEN_EQ,
lexer_get_c_as_string(lexer)
)
); break;
case '/': return lexer_next_token(
lexer,
token_init(
TOKEN_LORD,
lexer_get_c_as_string(lexer)
)
); break;
case '\\': return lexer_next_token(
lexer,
token_init(
TOKEN_RORD,
lexer_get_c_as_string(lexer)
)
); break;
case '&': return lexer_next_token(
lexer,
token_init(
TOKEN_AMP,
lexer_get_c_as_string(lexer)
)
); break;
case '[': return lexer_next_token(
lexer,
token_init(
TOKEN_LBRAK,
lexer_get_c_as_string(lexer)
)
); break;
case ']': return lexer_next_token(
lexer,
token_init(
TOKEN_RBRAK,
lexer_get_c_as_string(lexer)
)
); break;
case '#': return lexer_next_token(
lexer,
token_init(
TOKEN_POUND,
lexer_get_c_as_string(lexer)
)
); break;
case '~': return lexer_next_token(
lexer,
token_init(
TOKEN_TILDE,
lexer_get_c_as_string(lexer)
)
); break;
}
}
return token_init(TOKEN_EOF, "\0");
}
token_T* lexer_get_string(lexer_T* lexer) {
// while c not ", add c to token value
}
token_T* lexer_get_id(lexer_T* lexer) {
//
}
token_T* lexer_next_token(lexer_T* lexer, token_T* token) {
lexer_next(lexer);
return token;
}
char* lexer_get_c_as_string(lexer_T* lexer) {
char* str = calloc(1, sizeof(char));
str[0] = lexer->c;
str[1] = '\0';
return str;
}
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