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org-babel-comint-with-output: Fix edge case for partial prompts
* lisp/ob-comint.el (org-babel-comint-with-output): Do not try to filter out prompts in `comint-output-filter-functions'. The prompts may arrive there arbitrarily - multiple prompts together, partial prompts, full prompts, etc. For example "ghci> " prompt may arrive as "gh" + "ci> " with second part still matching `comint-prompt-regexp'. As a result, if we keep using `comint-output-filter-functions', the split prompts may sometimes retain their initial part, littering the results. Now, we postpone filtering to after receiving the output, still making sure that agglomerated prompts gets filtered using a custom regexp derived from `comint-prompt-regexp'.
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@ -81,28 +81,7 @@ or user `keyboard-quit' during execution of body."
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(let* ((string-buffer "")
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(comint-output-filter-functions
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(cons (lambda (text)
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(setq string-buffer
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(concat
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string-buffer
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;; Upon concatenation, the prompt may no
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;; longer match `comint-prompt-regexp'.
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;; In particular, when the regexp has ^
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;; and the output does not contain
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;; trailing newline. Use more reliable
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;; match to split the output later.
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(replace-regexp-in-string
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;; Sometimes, we get multiple agglomerated
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;; prompts together in a single output:
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;; "prompt prompt prompt output"
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;; Remove them progressively, so that
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;; possible "^" in the prompt regexp gets to
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;; work as we remove the heading prompt
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;; instance.
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(if (string-prefix-p "^" comint-prompt-regexp)
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(format "^\\(%s\\)+" (substring comint-prompt-regexp 1))
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comint-prompt-regexp)
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,org-babel-comint-prompt-separator
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text))))
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(setq string-buffer (concat string-buffer text)))
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comint-output-filter-functions))
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dangling-text)
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;; got located, and save dangling text
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@ -126,12 +105,19 @@ or user `keyboard-quit' during execution of body."
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(goto-char (process-mark (get-buffer-process (current-buffer))))
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(insert dangling-text)
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;; Replace partially supplied input lines.
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;; This is needed when output filter spits partial lines that
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;; do not include a full prompt at a time.
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;; Filter out prompts.
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(setq string-buffer
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(replace-regexp-in-string
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comint-prompt-regexp
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;; Sometimes, we get multiple agglomerated
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;; prompts together in a single output:
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;; "prompt prompt prompt output"
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;; Remove them progressively, so that
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;; possible "^" in the prompt regexp gets to
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;; work as we remove the heading prompt
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;; instance.
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(if (string-prefix-p "^" comint-prompt-regexp)
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(format "^\\(%s\\)+" (substring comint-prompt-regexp 1))
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comint-prompt-regexp)
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,org-babel-comint-prompt-separator
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string-buffer))
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;; remove echo'd FULL-BODY from input
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