106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
#include "util.h"
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#include <stdio.h>
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#include <string.h>
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int is_whitespace(char c) {
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return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\v' || c == '\f';
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}
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int is_alpha(char c) {
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char tmp_lower = c - 'a';
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char tmp_upper = c - 'A';
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return (tmp_lower <= ('z' - 'a') && 0 <= tmp_lower) || (tmp_upper <= ('Z' - 'A') && 0 <= tmp_upper);
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}
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int is_digit(char c) {
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char tmp = c - '0';
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return 0 <= tmp && tmp <= 9;
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}
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int is_alpha_digit(char c) {
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return is_digit(c) || is_alpha(c) || c == '_';
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}
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void print_token(Token tok) {
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char token_name[20];
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switch (tok.type) {
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case LBRACK:
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strcpy(token_name, "LBRACK");
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break;
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case RBRACK:
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strcpy(token_name, "RBRACK");
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break;
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case LCURLY:
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strcpy(token_name, "LCURLY");
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break;
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case RCURLY:
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strcpy(token_name, "RCURLY");
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break;
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case LPAREN:
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strcpy(token_name, "LPAREN");
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break;
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case RPAREN:
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strcpy(token_name, "RPAREN");
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break;
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case SEMI:
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strcpy(token_name, "SEMI");
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break;
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case COMMA:
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strcpy(token_name, "COMMA");
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break;
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case ARROW:
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strcpy(token_name, "ARROW");
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break;
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case STAR:
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strcpy(token_name, "STAR");
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break;
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case ANDREF:
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strcpy(token_name, "ANDREF");
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break;
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case DOLLAR:
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strcpy(token_name, "DOLLAR");
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break;
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case COMMENT:
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strcpy(token_name, "COMMENT");
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break;
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case ID:
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strcpy(token_name, "ID");
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break;
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case NUM:
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strcpy(token_name, "NUM");
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break;
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case STRING_LITERAL:
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strcpy(token_name, "STRING_LITERAL");
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break;
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case VAL:
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strcpy(token_name, "VAL");
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break;
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case RETURN:
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strcpy(token_name, "RETURN");
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break;
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case IF:
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strcpy(token_name, "IF");
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break;
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case ELSE:
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strcpy(token_name, "ELSE");
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break;
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case EOF_TOKEN:
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strcpy(token_name, "EOF_TOKEN");
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break;
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case ERROR:
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strcpy(token_name, "ERROR");
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break;
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default:
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strcpy(token_name, "UNKNOWN");
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break;
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}
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printf("Token Name: %s ", token_name);
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printf("Line: %u ", tok.line);
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if (tok.type == ID || tok.type == NUM || tok.type == STRING_LITERAL) {
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printf("Data: %s", tok.data.string);
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}
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} |