diff options
Diffstat (limited to 'contrib/less/charset.c')
| -rw-r--r-- | contrib/less/charset.c | 105 |
1 files changed, 66 insertions, 39 deletions
diff --git a/contrib/less/charset.c b/contrib/less/charset.c index 7aec0ea140e8..88978918e45f 100644 --- a/contrib/less/charset.c +++ b/contrib/less/charset.c @@ -22,6 +22,13 @@ #include "charset.h" +#if MSDOS_COMPILER==WIN32C +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#endif + +extern int bs_mode; + public int utf_mode = 0; /* @@ -215,7 +222,13 @@ icharset(name, no_error) { ichardef(p->desc); if (p->p_flag != NULL) + { +#if MSDOS_COMPILER==WIN32C + *(p->p_flag) = 1 + (GetConsoleOutputCP() != CP_UTF8); +#else *(p->p_flag) = 1; +#endif + } return (1); } } @@ -251,16 +264,17 @@ ilocale() /* * Define the printing format for control (or binary utf) chars. */ - static void -setbinfmt(s, fmtvarptr, default_fmt) + public void +setfmt(s, fmtvarptr, attrptr, default_fmt) char *s; char **fmtvarptr; + int *attrptr; char *default_fmt; { if (s && utf_mode) { /* It would be too hard to account for width otherwise. */ - char *t = s; + char constant *t = s; while (*t) { if (*t < ' ' || *t > '~') @@ -282,15 +296,15 @@ setbinfmt(s, fmtvarptr, default_fmt) * Select the attributes if it starts with "*". */ attr: - if (*s == '*') + if (*s == '*' && s[1] != '\0') { switch (s[1]) { - case 'd': binattr = AT_BOLD; break; - case 'k': binattr = AT_BLINK; break; - case 's': binattr = AT_STANDOUT; break; - case 'u': binattr = AT_UNDERLINE; break; - default: binattr = AT_NORMAL; break; + case 'd': *attrptr = AT_BOLD; break; + case 'k': *attrptr = AT_BLINK; break; + case 's': *attrptr = AT_STANDOUT; break; + case 'u': *attrptr = AT_UNDERLINE; break; + default: *attrptr = AT_NORMAL; break; } s += 2; } @@ -305,6 +319,14 @@ set_charset() { char *s; +#if MSDOS_COMPILER==WIN32C + /* + * If the Windows console is using UTF-8, we'll use it too. + */ + if (GetConsoleOutputCP() == CP_UTF8) + if (icharset("utf-8", 1)) + return; +#endif /* * See if environment variable LESSCHARSET is defined. */ @@ -354,6 +376,7 @@ set_charset() * rather than from predefined charset entry. */ ilocale(); +#else #if MSDOS_COMPILER /* * Default to "dos". @@ -383,10 +406,10 @@ init_charset() set_charset(); s = lgetenv("LESSBINFMT"); - setbinfmt(s, &binfmt, "*s<%02X>"); + setfmt(s, &binfmt, &binattr, "*s<%02X>"); s = lgetenv("LESSUTFBINFMT"); - setbinfmt(s, &utfbinfmt, "<U+%04lX>"); + setfmt(s, &utfbinfmt, &binattr, "<U+%04lX>"); } /* @@ -543,34 +566,19 @@ is_utf8_well_formed(ss, slen) } /* - * Return number of invalid UTF-8 sequences found in a buffer. + * Skip bytes until a UTF-8 lead byte (11xxxxxx) or ASCII byte (0xxxxxxx) is found. */ - public int -utf_bin_count(data, len) - char *data; - int len; + public void +utf_skip_to_lead(pp, limit) + char **pp; + char *limit; { - int bin_count = 0; - while (len > 0) - { - if (is_utf8_well_formed(data, len)) - { - int clen = utf_len(*data & 0377); - data += clen; - len -= clen; - } else - { - /* Skip to next lead byte. */ - bin_count++; - do { - ++data; - --len; - } while (len > 0 && !IS_UTF8_LEAD(*data & 0377)); - } - } - return (bin_count); + do { + ++(*pp); + } while (*pp < limit && !IS_UTF8_LEAD((*pp)[0] & 0377) && !IS_ASCII_OCTET((*pp)[0])); } + /* * Get the value of a UTF-8 character. */ @@ -690,9 +698,9 @@ step_char(pp, dir, limit) { /* It's easy if chars are one byte. */ if (dir > 0) - ch = (LWCHAR) ((p < limit) ? *p++ : 0); + ch = (LWCHAR) (unsigned char) ((p < limit) ? *p++ : 0); else - ch = (LWCHAR) ((p > limit) ? *--p : 0); + ch = (LWCHAR) (unsigned char) ((p > limit) ? *--p : 0); } else if (dir > 0) { len = utf_len(*p); @@ -740,6 +748,10 @@ DECLARE_RANGE_TABLE_START(wide) #include "wide.uni" DECLARE_RANGE_TABLE_END(wide) +DECLARE_RANGE_TABLE_START(fmt) +#include "fmt.uni" +DECLARE_RANGE_TABLE_END(fmt) + /* comb_table is special pairs, not ranges. */ static struct wchar_range comb_table[] = { {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627}, @@ -780,7 +792,8 @@ is_in_table(ch, table) is_composing_char(ch) LWCHAR ch; { - return is_in_table(ch, &compose_table); + return is_in_table(ch, &compose_table) || + (bs_mode != BS_CONTROL && is_in_table(ch, &fmt_table)); } /* @@ -790,7 +803,21 @@ is_composing_char(ch) is_ubin_char(ch) LWCHAR ch; { - return is_in_table(ch, &ubin_table); + int ubin = is_in_table(ch, &ubin_table) || + (bs_mode == BS_CONTROL && is_in_table(ch, &fmt_table)); +#if MSDOS_COMPILER==WIN32C + if (!ubin && utf_mode == 2 && ch < 0x10000) + { + /* + * Consider it binary if it can't be converted. + */ + BOOL used_default = TRUE; + WideCharToMultiByte(GetConsoleOutputCP(), WC_NO_BEST_FIT_CHARS, (LPCWSTR) &ch, 1, NULL, 0, NULL, &used_default); + if (used_default) + ubin = 1; + } +#endif + return ubin; } /* |