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Inject readline markers only if using readline

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This commit is contained in:
Philippe Teuwen 2022-01-11 14:26:50 +01:00
parent 8d5f31757f
commit b15f7c4789
1 changed files with 5 additions and 0 deletions
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5
include/ansi.h
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@ -32,12 +32,17 @@
#define _CLEAR_ "\x1b[2J"
#define _TOP_ "\x1b[1;1f"
#if defined(HAVE_READLINE)
// https://wiki.hackzine.org/development/misc/readline-color-prompt.html
// Applications may indicate that the prompt contains
// characters that take up no physical screen space when displayed by
// bracketing a sequence of such characters with the special markers
// RL_PROMPT_START_IGNORE = '\001' and RL_PROMPT_END_IGNORE = '\002'
#define RL_ESC(a) "\001" a "\002"
#else
#define RL_ESC(a) a
#endif // HAVE_READLINE
#define _RL_RED_(s) RL_ESC("\x1b[31m") s RL_ESC(AEND)
#define _RL_GREEN_(s) RL_ESC("\x1b[32m") s RL_ESC(AEND)