Julian Prein
27791acf50
Correct the allowed byte ranges of the APC, DCS, OSC, PM & SOS sequences. All but the SOS sequence allow additionally the bytes in the range `0x8 - 0xD` and SOS may be followed by any sequence of bytes except for SOS and ST (i.e. `\eX` & `\e\\`). Link: https://www.ecma-international.org/wp-content/uploads/ECMA-48_5th_edition_june_1991.pdf#page=27
23 lines
743 B
Bash
Executable File
23 lines
743 B
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: MIT
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# Copyright (c) 2025 Julian Prein
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#
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# Remove ANSI escape sequences.
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#
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# Additionally to the general form `\e[ -/]*[0-~]` this also tries to cover
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# sequences that are followed by additional bytes (e.g. CSI, OSC). This script
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# covers no C1 sequences.
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#
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# See:
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# - https://en.wikipedia.org/wiki/ANSI_escape_code
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# - https://www.ecma-international.org/wp-content/uploads/ECMA-35_6th_edition_december_1994.pdf
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# - https://www.ecma-international.org/wp-content/uploads/ECMA-48_5th_edition_june_1991.pdf
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env LC_ALL=C sed -E "$(printf "%b" \
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's/' \
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'\033\\[[0-?]*[ -/]*[@-~]' '|' \
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'\033[]P^_][\010-\015 -~]*\033\\\\' '|' \
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'\033X([^\033]|\033+[^\033X\\])*\033+\\\\' '|' \
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'\033[ -/]*[0-~]' \
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'//g')"
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