49 lines
2 KiB
C
49 lines
2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* fold_double_pipe.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/10/02 19:04:32 by maiboyer #+# #+# */
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/* Updated: 2024/10/04 18:47:39 by rparodi ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "parser/passes.h"
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#include "me/types.h"
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#include "me/vec/vec_token.h"
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#include "parser/token.h"
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/// This is a sample pass
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///
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/// There is a few rules the rest of the tokenizer machinery assumes
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/// theses function follows:
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/// - the input vec WILL be freed when the function return, even in
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/// case of error
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/// - the output vector isn't populated if the function returns an error,
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/// thus it shouldn't be freed in case of error
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/// - the output tokens may not be direct copy of the input tokens,
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/// but need to be cloned (different allocations for stuff)
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t_error ts_double_pipe(t_vec_token input, t_vec_token *output)
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{
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t_vec_token out;
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t_usize i;
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i = 0;
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out = vec_token_new(input.len, token_free);
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while (i < input.len)
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{
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if (i + 1 >= input.len)
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vec_token_push(&out, token_clone(&input.buffer[i]));
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else if (input.buffer[i].type == TOK_PIPE
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&& input.buffer[i + 1].type == TOK_PIPE)
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vec_token_push(&out, token_new(TOK_OR));
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else
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vec_token_push(&out, token_clone(&input.buffer[i]));
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i++;
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}
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vec_token_free(input);
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return (*output = out, NO_ERROR);
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}
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