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authorDan McGee <dan@archlinux.org>2008-02-22 20:57:45 -0600
committerDan McGee <dan@archlinux.org>2008-02-22 21:59:11 -0600
commit29f55fb7c9e2d7d3923d796216a9506d95b1fd60 (patch)
tree0e729ba700ff7f914b14e26a391b7cdfdd85eba0
parent731a774319a9f571179a5db738b4795337c75e38 (diff)
Fix wide character output for download progress
Now that we have a Chinese translation, all of the problems with new character sets crop up. Assumptions were made in the past that all characters occupied one column, which is not true with a Chinese character set. In addition, the download code even failed on such things as 'ö', which is two bytes wide but only 1 column. This code will need to also be ported to the add/remove/upgrade/conflicts progress printouts. Note that the tests below try to incorporate a number of things: 1. download filenames too long to fit 2. download filenames cut off in the middle of a multibyte sequence 3. download filenames incorporating multicolumn chars 4. download filenames incorporating multibyte, single-column chars 5. 'plain' download filenames that have always worked Before: :: 正在同步软件包数据库…… 正在解决倚赖��... 0.0K 199.8K/s 00:00:00 [-----------------] 100% 错误:无法升级正在解决倚赖关系junköëjunköëjunköëäää (未预计的系统错误) 正在解决倚赖��... 0.0K 308.4K/s 00:00:00 [-----------------] 100% 错误:无法升级正在解决倚赖关系 (未预计的系统错误) junköëä 0.0K 390.6K/s 00:00:00 [-----------------] 100% 错误:无法升级junköëä (未预计的系统错误) pacman-git 0.5K 4.3M/s 00:00:00 [-----------------] 100% 本地数据库已是最新的 After: :: 正在同步软件包数据库…… 正在解决倚赖关系jun... 0.0K 89.7K/s 00:00:00 [-----------------] 100% 错误:无法升级正在解决倚赖关系junköëjunköëjunköëäää (未预计的系统错误) 正在解决倚赖关系 0.0K 147.7K/s 00:00:00 [-----------------] 100% 错误:无法升级正在解决倚赖关系 (未预计的系统错误) junköëä 0.0K 156.9K/s 00:00:00 [-----------------] 100% 错误:无法升级junköëä (未预计的系统错误) pacman-git 0.5K 1515.9K/s 00:00:00 [-----------------] 100% 本地数据库已是最新的 Signed-off-by: Dan McGee <dan@archlinux.org>
-rw-r--r--src/pacman/callback.c39
1 files changed, 33 insertions, 6 deletions
diff --git a/src/pacman/callback.c b/src/pacman/callback.c
index cf07a09d..5865550e 100644
--- a/src/pacman/callback.c
+++ b/src/pacman/callback.c
@@ -36,7 +36,6 @@
/* TODO this should not have to be defined twice- trans.c & log.c */
#define LOG_STR_LEN 256
-#define FILENAME_TRIM_LEN 23
/* download progress bar */
static float rate_last;
@@ -421,7 +420,11 @@ void cb_dl_progress(const char *filename, int file_xfered, int file_total,
int list_xfered, int list_total)
{
const int infolen = 50;
+ const int filenamelen = infolen - 27;
char *fname, *p;
+ /* used for wide character width determination and printing */
+ int len, wclen, wcwid, padwid;
+ wchar_t *wcfname;
float rate = 0.0, timediff = 0.0, f_xfered = 0.0;
unsigned int eta_h = 0, eta_m = 0, eta_s = 0;
@@ -501,8 +504,30 @@ void cb_dl_progress(const char *filename, int file_xfered, int file_total,
if((p = strstr(fname, PKGEXT)) || (p = strstr(fname, DBEXT))) {
*p = '\0';
}
- if(strlen(fname) > FILENAME_TRIM_LEN) {
- strcpy(fname + FILENAME_TRIM_LEN -3,"...");
+ /* In order to deal with characters from all locales, we have to worry
+ * about wide characters and their column widths. A lot of stuff is
+ * done here to figure out the actual number of screen columns used
+ * by the output, and then pad it accordingly so we fill the terminal.
+ */
+ /* len = filename len + null */
+ len = strlen(filename) + 1;
+ wcfname = calloc(len, sizeof(wchar_t));
+ wclen = mbstowcs(wcfname, fname, len);
+ wcwid = wcswidth(wcfname, wclen);
+ padwid = filenamelen - wcwid;
+ /* if padwid is < 0, we need to trim the string so padwid = 0 */
+ if(padwid < 0) {
+ int i = filenamelen - 3;
+ wchar_t *p = wcfname;
+ /* grab the max number of char columns we can fill */
+ while(i > 0 && wcwidth(*p) < i) {
+ i -= wcwidth(*p);
+ p++;
+ }
+ /* then add the ellipsis and fill out any extra padding */
+ wcscpy(p, L"...");
+ padwid = i;
+
}
/* Awesome formatting for progress bar. We need a mess of Kb->Mb->Gb stuff
@@ -532,10 +557,12 @@ void cb_dl_progress(const char *filename, int file_xfered, int file_total,
}
}
- printf(" %-*s %6.1f%c %#6.1f%c/s %02u:%02u:%02u", FILENAME_TRIM_LEN, fname,
- f_xfered, xfered_size, rate, rate_size, eta_h, eta_m, eta_s);
+ printf(" %ls%-*s %6.1f%c %#6.1f%c/s %02u:%02u:%02u", wcfname,
+ padwid, "", f_xfered, xfered_size,
+ rate, rate_size, eta_h, eta_m, eta_s);
free(fname);
+ free(wcfname);
/* The progress bar is based on the file percent regardless of the
* TotalDownload option. */
@@ -548,7 +575,7 @@ void cb_dl_progress(const char *filename, int file_xfered, int file_total,
/* Callback to handle notifications from the library */
void cb_log(pmloglevel_t level, char *fmt, va_list args)
{
- if(!strlen(fmt)) {
+ if(strlen(fmt) == 0) {
return;
}