diff options
| -rw-r--r-- | src/pacman/callback.c | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/src/pacman/callback.c b/src/pacman/callback.c index 5865550e..629c2e1c 100644 --- a/src/pacman/callback.c +++ b/src/pacman/callback.c @@ -328,8 +328,11 @@ void cb_trans_progress(pmtransprog_t event, const char *pkgname, int percent, /* size of line to allocate for text printing (e.g. not progressbar) */ const int infolen = 50; - int tmp, digits, oprlen, textlen, remainlen; + int tmp, digits, textlen; char *opr = NULL; + /* used for wide character width determination and printing */ + int len, wclen, wcwid, padwid; + wchar_t *wcstr; if(config->noprogressbar) { return; @@ -378,27 +381,41 @@ void cb_trans_progress(pmtransprog_t event, const char *pkgname, int percent, while((tmp /= 10)) { ++digits; } - /* determine room left for non-digits text [not ( 1/12) part] */ textlen = infolen - 3 - (2 * digits); - oprlen = mbstowcs(NULL, opr, 0); - /* room left (eg for package name) */ - remainlen = textlen - oprlen - 1; + /* 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 = opr len + pkgname len (if available) + space + null */ + len = strlen(opr) + ((pkgname) ? strlen(pkgname) : 0) + 2; + wcstr = calloc(len, sizeof(wchar_t)); + /* print our strings to the alloc'ed memory */ + wclen = swprintf(wcstr, len, L"%s %s", opr, pkgname); + wcwid = wcswidth(wcstr, wclen); + padwid = textlen - wcwid; + /* if padwid is < 0, we need to trim the string so padwid = 0 */ + if(padwid < 0) { + int i = textlen - 3; + wchar_t *p = wcstr; + /* 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; - switch (event) { - case PM_TRANS_PROGRESS_ADD_START: - case PM_TRANS_PROGRESS_UPGRADE_START: - case PM_TRANS_PROGRESS_REMOVE_START: - printf("(%*d/%*d) %s %-*.*s", digits, remain, digits, howmany, - opr, remainlen, remainlen, pkgname); - break; - case PM_TRANS_PROGRESS_CONFLICTS_START: - printf("(%*d/%*d) %s %-*s", digits, remain, digits, howmany, - opr, remainlen, ""); - break; } + printf("(%*d/%*d) %ls%-*s", digits, remain, digits, howmany, + wcstr, padwid, ""); + + free(wcstr); + /* call refactored fill progress function */ fill_progress(percent, percent, getcols() - infolen); |