diff options
Diffstat (limited to 'Src/Zle/zle.h')
| -rw-r--r-- | Src/Zle/zle.h | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/Src/Zle/zle.h b/Src/Zle/zle.h index 32f3e59f6..bedf28f17 100644 --- a/Src/Zle/zle.h +++ b/Src/Zle/zle.h @@ -385,6 +385,47 @@ enum suffixflags { SUFFLAGS_SPACE = 0x0001 /* Add a space when removing suffix */ }; + +/* Flags for the region_highlight structure */ +enum { + /* Offsets include predisplay */ + ZRH_PREDISPLAY = 1 +}; + +/* + * Attributes used for highlighting regions. + * and mark. + */ +struct region_highlight { + /* Attributes turned on in the region */ + int atr; + /* Start of the region */ + int start; + /* Start of the region in metafied ZLE line */ + int start_meta; + /* + * End of the region: position of the first character not highlighted + * (the same system as for point and mark). + */ + int end; + /* End of the region in metafied ZLE line */ + int end_meta; + /* + * Any of the flags defined above. + */ + int flags; +}; + +/* + * Count of special uses of region highlighting, which account + * for the first few elements of region_highlights. + * 0: region between point and mark + * 1: isearch region + * 2: suffix + */ +#define N_SPECIAL_HIGHLIGHTS (3) + + #ifdef MULTIBYTE_SUPPORT /* * We use a wint_t here, since we need an invalid character as a @@ -420,15 +461,28 @@ typedef REFRESH_ELEMENT *REFRESH_STRING; #if defined(MULTIBYTE_SUPPORT) && defined(__STDC_ISO_10646__) +/* + * With ISO 10646 there is a private range defined within + * the encoding. We use this for storing single-byte + * characters in sections of strings that wouldn't convert to wide + * characters. This allows to preserve the string when transformed + * back to multibyte strings. + */ + +/* The start of the private range we use, for 256 characters */ #define ZSH_INVALID_WCHAR_BASE (0xe000U) +/* Detect a wide character within our range */ #define ZSH_INVALID_WCHAR_TEST(x) \ ((unsigned)(x) >= ZSH_INVALID_WCHAR_BASE && \ (unsigned)(x) <= (ZSH_INVALID_WCHAR_BASE + 255u)) +/* Turn a wide character in that range back to single byte */ #define ZSH_INVALID_WCHAR_TO_CHAR(x) \ ((char)((unsigned)(x) - ZSH_INVALID_WCHAR_BASE)) +/* Turn a wide character in that range to an integer */ #define ZSH_INVALID_WCHAR_TO_INT(x) \ ((int)((unsigned)(x) - ZSH_INVALID_WCHAR_BASE)) -#define ZSH_CHAR_TO_INVALID_WCHAR(x) \ +/* Turn a single byte character into a private wide character */ +#define ZSH_CHAR_TO_INVALID_WCHAR(x) \ ((wchar_t)(STOUC(x) + ZSH_INVALID_WCHAR_BASE)) #endif |