diff options
Diffstat (limited to 'src/tokenizer.c')
| -rw-r--r-- | src/tokenizer.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/tokenizer.c b/src/tokenizer.c new file mode 100644 index 0000000..086d4b0 --- /dev/null +++ b/src/tokenizer.c @@ -0,0 +1,158 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* tokenizer.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2024/06/28 20:55:50 by chuhlig #+# #+# */ +/* Updated: 2024/06/28 21:58:38 by chuhlig ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "minishell.h" +#include "token.h" + +char *ft_strncpy(char *dst, char *src, size_t n) +{ + char *start; + + start = dst; + while (n-- > 0 && *src) + *dst++ = *src++; + if (n > 0) + ft_memset(dst, '\0', n); + return (start); +} + +void print_token(t_token *token) +{ + if (token->type == STRING_TOKEN) + { + printf("STRING_TOKEN: %s\n", token->content.string); + } + else if (token->type == REDIR_TOKEN) + { + printf("REDIR_TOKEN: %d\n", token->content.redir_type); + } + else if (token->type == PIPE_TOKEN) + { + printf("PIPE_TOKEN\n"); + } +} + + + +void conditional_print(char *string, int start_of_string, int i, int offset, t_token **token_list) +{ + char *trimmed_line; + char *line; + int len; + + len = i + offset - start_of_string; + if (len > 0) + { + line = (char *)malloc(len + 1); + if (!line) + { + exit(EXIT_FAILURE); + } + ft_strncpy(line, string + start_of_string, len); + line[len] = '\0'; + trimmed_line = line; + while (*trimmed_line == ' ' || *trimmed_line == '\t') + { + trimmed_line++; + } + if (*trimmed_line != '\0') + { + *token_list = new_str_token(trimmed_line, *token_list, NULL); + print_token(*token_list); + } + free(line); + } +} + +void tokenizer(char *s, t_token **token_list) +{ + char *quotes; + char quote_check; + char c; + int start_of_string; + int ignore_space; + int flag; + int i; + int skip; + + quotes = "\"\'"; + quote_check = '\0'; + start_of_string = 0; + ignore_space = 0; + flag = 0; + i = 0; + skip = 0; + while (s[i]) + { + c = s[i]; + if (skip) + { + skip = 0; + i++; + continue ; + } + if (!ignore_space && (c == '|' || c == ';' || c == '<' || c == '>')) + { + conditional_print(s, start_of_string, i, 0, token_list); + if ((c == '<' || c == '>') && s[i + 1] == c) + { + if (c == '<') + { + *token_list = new_redir_token(INPUT_FILE, + *token_list, NULL); + print_token(*token_list); + } + else + { + *token_list = new_redir_token(OUTPUT_APPEND, + *token_list, NULL); + print_token(*token_list); + } + i++; + } + else + { + if (c == '<') + { + *token_list = new_redir_token(INPUT_FILE, + *token_list, NULL); + } + else + { + *token_list = new_redir_token(OUTPUT_OVERRIDE, + *token_list, NULL); + } + print_token(*token_list); + } + start_of_string = i + 1; + } + else if (ignore_space && c == quote_check) + { + quote_check = '\0'; + ignore_space = 0; + } + else if (!ignore_space && ft_strchr(quotes, c)) + { + quote_check = c; + ignore_space = 1; + } + else if ((!ignore_space && (s[i] != ' ' || s[i] != '\t')) || s[i + 1] == '\0') + { + if (s[i + 1]) + conditional_print(s, start_of_string, i, 1, token_list); + else + conditional_print(s, start_of_string, i, 0, token_list); + start_of_string = i + 1; + } + i++; + } +}
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