From: Denys Vlasenko Date: Sat, 30 Jan 2010 22:16:21 +0000 (+0100) Subject: further work on unicodization X-Git-Tag: 1_17_0~513 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e17764c8fb566f85020217dd8fd05fb6bc227e98;p=oweals%2Fbusybox.git further work on unicodization Signed-off-by: Denys Vlasenko --- diff --git a/TODO_unicode b/TODO_unicode new file mode 100644 index 000000000..c29fd933b --- /dev/null +++ b/TODO_unicode @@ -0,0 +1,45 @@ +Already fixed applets: +cal +lsmod +df +dumpleases + +Applets which may need unicode handling (more extensive than sanitizing +of filenames in error messages): + +ls - uses unicode_strlen, not scrlen +expand, unexpand - uses unicode_strlen, not scrlen +ash, hush through lineedit - uses unicode_strlen, not scrlen +top - need to sanitize process args +ps - need to sanitize process args +less +more +vi +ed +cut +awk +sed +tr +grep egrep fgrep +fold +sort +head, tail +catv - "display nonprinting chars" - what this could mean for unicode? +wc +chat +dumpkmap +last - just line up columns +man +microcom +strings +watch + +Unsure, may need fixing: + +hostname - do we really want to protect against bad chars in it? +patch +addgroup, adduser, delgroup, deluser +telnet +telnetd +od +printf diff --git a/coreutils/cal.c b/coreutils/cal.c index 5ecb9131d..207fa967b 100644 --- a/coreutils/cal.c +++ b/coreutils/cal.c @@ -135,7 +135,7 @@ int cal_main(int argc UNUSED_PARAM, char **argv) if (julian) *hp++ = ' '; { - char *two_wchars = unicode_cut_nchars(2, buf); + char *two_wchars = unicode_conv_to_printable_fixedwidth(NULL, buf, 2); strcpy(hp, two_wchars); free(two_wchars); } diff --git a/coreutils/df.c b/coreutils/df.c index ae68f0831..4b23faa7a 100644 --- a/coreutils/df.c +++ b/coreutils/df.c @@ -114,9 +114,6 @@ int df_main(int argc UNUSED_PARAM, char **argv) while (1) { const char *device; const char *mount_point; -#if ENABLE_FEATURE_ASSUME_UNICODE - size_t dev_len; -#endif if (mount_table) { mount_entry = getmntent(mount_table); @@ -178,11 +175,15 @@ int df_main(int argc UNUSED_PARAM, char **argv) #endif #if ENABLE_FEATURE_ASSUME_UNICODE - dev_len = unicode_strlen(device); - if (dev_len > 20) { - printf("%s\n%20s", device, ""); - } else { - printf("%s%*s", device, 20 - (int)dev_len, ""); + { + uni_stat_t uni_stat; + char *uni_dev = unicode_conv_to_printable(&uni_stat, device); + if (uni_stat.unicode_width > 20) { + printf("%s\n%20s", uni_dev, ""); + } else { + printf("%s%*s", uni_dev, 20 - (int)uni_stat.unicode_width, ""); + } + free(uni_dev); } #else if (printf("\n%-20s" + 1, device) > 20) diff --git a/include/unicode.h b/include/unicode.h index f1a252cc7..f32e56599 100644 --- a/include/unicode.h +++ b/include/unicode.h @@ -14,15 +14,25 @@ enum { #if !ENABLE_FEATURE_ASSUME_UNICODE # define unicode_strlen(string) strlen(string) -# define unicode_scrlen(string) TODO # define unicode_status UNICODE_OFF # define init_unicode() ((void)0) #else size_t FAST_FUNC unicode_strlen(const char *string); -char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src); -unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src); +enum { + UNI_FLAG_PAD = (1 << 0), +}; +typedef struct uni_stat_t { + unsigned byte_count; + unsigned unicode_count; + unsigned unicode_width; +} uni_stat_t; +//UNUSED: unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src); +//UNUSED: char* FAST_FUNC unicode_conv_to_printable2(uni_stat_t *stats, const char *src, unsigned width, int flags); +char* FAST_FUNC unicode_conv_to_printable(uni_stat_t *stats, const char *src); +char* FAST_FUNC unicode_conv_to_printable_maxwidth(uni_stat_t *stats, const char *src, unsigned maxwidth); +char* FAST_FUNC unicode_conv_to_printable_fixedwidth(uni_stat_t *stats, const char *src, unsigned width); # if ENABLE_LOCALE_SUPPORT diff --git a/libbb/unicode.c b/libbb/unicode.c index 878af84bc..4e7e3a96a 100644 --- a/libbb/unicode.c +++ b/libbb/unicode.c @@ -246,29 +246,45 @@ size_t FAST_FUNC unicode_strlen(const char *string) return width; } -char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src) +static char* FAST_FUNC unicode_conv_to_printable2(uni_stat_t *stats, const char *src, unsigned width, int flags) { char *dst; unsigned dst_len; + unsigned uni_count; + unsigned uni_width; if (unicode_status != UNICODE_ON) { - char *d = dst = xmalloc(width + 1); - while ((int)--width >= 0) { - unsigned char c = *src; - if (c == '\0') { - do - *d++ = ' '; - while ((int)--width >= 0); - break; + char *d; + if (flags & UNI_FLAG_PAD) { + d = dst = xmalloc(width + 1); + while ((int)--width >= 0) { + unsigned char c = *src; + if (c == '\0') { + do + *d++ = ' '; + while ((int)--width >= 0); + break; + } + *d++ = (c >= ' ' && c < 0x7f) ? c : '?'; + src++; + } + *d = '\0'; + } else { + d = dst = xstrndup(src, width); + while (*d) { + unsigned char c = *d; + if (c < ' ' || c >= 0x7f) + *d = '?'; + d++; } - *d++ = (c >= ' ' && c < 0x7f) ? c : '?'; - src++; } - *d = '\0'; + if (stats) + stats->byte_count = stats->unicode_count = (d - dst); return dst; } dst = NULL; + uni_count = uni_width = 0; dst_len = 0; while (1) { int w; @@ -301,7 +317,7 @@ char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src) /* src = NULL: invalid sequence is seen, * else: wc is set, src is advanced to next mb char */ - if (src1) {/* no error */ + if (src1) { /* no error */ if (wc == 0) /* end-of-string */ break; src = src1; @@ -315,8 +331,8 @@ char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src) goto subst; w = wcwidth(wc); if ((ENABLE_UNICODE_COMBINING_WCHARS && w < 0) /* non-printable wchar */ - || (!ENABLE_UNICODE_COMBINING_WCHARS && wc <= 0) - || (!ENABLE_UNICODE_WIDE_WCHARS && wc > 1) + || (!ENABLE_UNICODE_COMBINING_WCHARS && w <= 0) + || (!ENABLE_UNICODE_WIDE_WCHARS && w > 1) ) { subst: wc = CONFIG_SUBST_WCHAR; @@ -331,6 +347,8 @@ char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src) break; } + uni_count++; + uni_width += w; dst = xrealloc(dst, dst_len + MB_CUR_MAX); #if ENABLE_LOCALE_SUPPORT { @@ -343,15 +361,37 @@ char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src) } /* Pad to remaining width */ - dst = xrealloc(dst, dst_len + width + 1); - while ((int)--width >= 0) { - dst[dst_len++] = ' '; + if (flags & UNI_FLAG_PAD) { + dst = xrealloc(dst, dst_len + width + 1); + uni_count += width; + uni_width += width; + while ((int)--width >= 0) { + dst[dst_len++] = ' '; + } } dst[dst_len] = '\0'; + if (stats) { + stats->byte_count = dst_len; + stats->unicode_count = uni_count; + stats->unicode_width = uni_width; + } return dst; } +char* FAST_FUNC unicode_conv_to_printable(uni_stat_t *stats, const char *src) +{ + return unicode_conv_to_printable2(stats, src, INT_MAX, 0); +} +char* FAST_FUNC unicode_conv_to_printable_maxwidth(uni_stat_t *stats, const char *src, unsigned maxwidth) +{ + return unicode_conv_to_printable2(stats, src, maxwidth, 0); +} +char* FAST_FUNC unicode_conv_to_printable_fixedwidth(uni_stat_t *stats, const char *src, unsigned width) +{ + return unicode_conv_to_printable2(stats, src, width, UNI_FLAG_PAD); +} +#ifdef UNUSED unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src) { if (unicode_status != UNICODE_ON) { @@ -382,3 +422,4 @@ unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src) return 0; } } +#endif diff --git a/modutils/lsmod.c b/modutils/lsmod.c index cc6b6162f..50621c245 100644 --- a/modutils/lsmod.c +++ b/modutils/lsmod.c @@ -46,9 +46,6 @@ int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) #if ENABLE_FEATURE_LSMOD_PRETTY_2_6_OUTPUT char *token[4]; parser_t *parser = config_open("/proc/modules"); -# if ENABLE_FEATURE_ASSUME_UNICODE - size_t name_len; -# endif init_unicode(); printf("%-24sSize Used by", "Module"); @@ -64,9 +61,13 @@ int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) } else token[3] = (char *) ""; # if ENABLE_FEATURE_ASSUME_UNICODE - name_len = unicode_strlen(token[0]); - name_len = (name_len > 19) ? 0 : 19 - name_len; - printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]); + { + uni_stat_t uni_stat; + char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); + unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; + printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); + free(uni_name); + } # else printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); # endif @@ -78,9 +79,13 @@ int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) // so trimming the trailing char is just what we need! token[3][strlen(token[3])-1] = '\0'; # if ENABLE_FEATURE_ASSUME_UNICODE - name_len = unicode_strlen(token[0]); - name_len = (name_len > 19) ? 0 : 19 - name_len; - printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]); + { + uni_stat_t uni_stat; + char *uni_name = unicode_conv_to_printable(&uni_stat, token[0]); + unsigned pad_len = (uni_stat.unicode_width > 19) ? 0 : 19 - uni_stat.unicode_width; + printf("%s%*s %8s %2s %s\n", uni_name, pad_len, "", token[1], token[2], token[3]); + free(uni_name); + } # else printf("%-19s %8s %2s %s\n", token[0], token[1], token[2], token[3]); # endif diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c index d8f5da7fb..eab9713f4 100644 --- a/networking/udhcp/dumpleases.c +++ b/networking/udhcp/dumpleases.c @@ -71,8 +71,11 @@ int dumpleases_main(int argc UNUSED_PARAM, char **argv) /* actually, 15+1 and 19+1, +1 is a space between columns */ /* lease.hostname is char[20] and is always NUL terminated */ #if ENABLE_FEATURE_ASSUME_UNICODE - printf(" %-16s%s%*s", inet_ntoa(addr), lease.hostname, - 20 - (int)unicode_strlen(lease.hostname), ""); + { + char *uni_name = unicode_conv_to_printable_fixedwidth(NULL, lease.hostname, 20); + printf(" %-16s%s", inet_ntoa(addr), uni_name); + free(uni_name); + } #else printf(" %-16s%-20s", inet_ntoa(addr), lease.hostname); #endif