Date: Sun, 7 Mar 2010 21:39:47 +0000 (UTC) From: Edwin Groothuis <edwin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r204847 - user/edwin/ncal Message-ID: <201003072139.o27LdlwX071668@svn.freebsd.org>
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Author: edwin Date: Sun Mar 7 21:39:47 2010 New Revision: 204847 URL: http://svn.freebsd.org/changeset/base/204847 Log: - split highlighting-of-today code from the calculate-the-month code. - in case the output is not a terminal, use the _ backspace trick to highlight (keeps less(1) happy). Modified: user/edwin/ncal/Makefile user/edwin/ncal/ncal.c Modified: user/edwin/ncal/Makefile ============================================================================== --- user/edwin/ncal/Makefile Sun Mar 7 21:27:47 2010 (r204846) +++ user/edwin/ncal/Makefile Sun Mar 7 21:39:47 2010 (r204847) @@ -4,7 +4,6 @@ PROG= ncal DPADD= ${LIBCALENDAR} ${LIBTERMCAP} LDADD= -lcalendar -ltermcap -WARNS?= 6 LINKS= ${BINDIR}/ncal ${BINDIR}/cal MLINKS= ncal.1 cal.1 Modified: user/edwin/ncal/ncal.c ============================================================================== --- user/edwin/ncal/ncal.c Sun Mar 7 21:27:47 2010 (r204846) +++ user/edwin/ncal/ncal.c Sun Mar 7 21:39:47 2010 (r204847) @@ -159,10 +159,10 @@ char jdaystr[] = " 1 2 3 4 " 350 351 352 353 354 355 356 357 358 359" " 360 361 362 363 364 365 366"; +int flag_nohighlight; /* user doesn't want a highlighted today */ int flag_weeks; /* user wants number of week */ int nswitch; /* user defined switch date */ int nswitchb; /* switch date for backward compatibility */ -const char *term_so, *term_se; int today; char *center(char *s, char *t, int w); @@ -181,6 +181,7 @@ int sndaysb(struct date * d); static void usage(void); void monthranger(int year, int jd_flag, int m, int before, int after); void monthrangeb(int year, int jd_flag, int m, int before, int after); +void highlight(char *dst, char *src, int len, int *extraletters); int main(int argc, char *argv[]) @@ -204,15 +205,9 @@ main(int argc, char *argv[]) char *flag_highlightdate = NULL; int before, after; const char *locale; /* locale to get country code */ - char tbuf[1024], cbuf[512], *b; - /* On how to highlight on this terminal */ - term_se = term_so = NULL; - if (isatty(STDOUT_FILENO) && tgetent(tbuf, NULL) == 1) { - b = cbuf; - term_so = tgetstr("so", &b); - term_se = tgetstr("se", &b); - } + flag_nohighlight = 0; + flag_weeks = 0; /* * Use locale to determine the country code, @@ -283,7 +278,7 @@ main(int argc, char *argv[]) flag_highlightdate = optarg; break; case 'h': - term_so = term_se = NULL; + flag_nohighlight = 1; break; case 'e': if (flag_backward) @@ -723,27 +718,14 @@ mkmonthr(int y, int m, int jd_flag, stru for (i = 0; i != 7; i++) { l = 0; for (j = firstm + i, k = 0; j < last; j += 7, k += dw) { - if (j == today && - (term_so != NULL && term_se != NULL)) { - l = strlen(term_so); + if (j == today && !flag_nohighlight) { if (jd_flag) dt.d = j - jan1 + 1; else sdater(j, &dt); - /* separator */ - mlines->lines[i][k] = ' '; - /* the actual text */ - memcpy(mlines->lines[i] + k + l, - ds + dt.d * dw, dw); - /* highlight on */ - memcpy(mlines->lines[i] + k + 1, term_so, l); - /* highlight off */ - memcpy(mlines->lines[i] + k + l + dw, term_se, - strlen(term_se)); - l = strlen(term_se) + strlen(term_so); - continue; - } - if (j >= first) { + highlight(mlines->lines[i] + k, ds + dt.d * dw, + dw, &l); + } else if (j >= first) { if (jd_flag) dt.d = j - jan1 + 1; else @@ -843,27 +825,14 @@ mkmonthb(int y, int m, int jd_flag, stru l = 0; for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7; j++, k += dw) { - if (j == today && - (term_so != NULL && term_se != NULL)) { - l = strlen(term_so); + if (j == today && !flag_nohighlight) { if (jd_flag) dt.d = j - jan1 + 1; else sdateb(j, &dt); - /* separator */ - mlines->lines[i][k] = ' '; - /* the actual text */ - memcpy(mlines->lines[i] + k + l, - ds + dt.d * dw, dw); - /* highlight on */ - memcpy(mlines->lines[i] + k + 1, term_so, l); - /* highlight off */ - memcpy(mlines->lines[i] + k + l + dw, term_se, - strlen(term_se)); - l = strlen(term_se) + strlen(term_so); - continue; - } - if (j >= first) { + highlight(mlines->lines[i] + k, ds + dt.d * dw, + dw, &l); + } else if (j >= first) { if (jd_flag) dt.d = j - jan1 + 1; else @@ -1037,3 +1006,70 @@ parsemonth(const char *s, int *m, int *y } return (1); } + +void +highlight(char *dst, char *src, int len, int *extralen) +{ + static int first = 1; + static const char *term_so, *term_se; + + if (first) { + char tbuf[1024], cbuf[512], *b; + + term_se = term_so = NULL; + + /* On how to highlight on this terminal */ + if (isatty(STDOUT_FILENO) && tgetent(tbuf, NULL) == 1) { + b = cbuf; + term_so = tgetstr("so", &b); + term_se = tgetstr("se", &b); + } + + first = 0; + } + + /* This check is not necessary */ + if (flag_nohighlight) { + memcpy(dst, src, len); + return; + } + + /* If it is a real terminal, use the data from the termcap database. */ + if (term_so != NULL && term_se != NULL) { + /* separator */ + dst[0] = ' '; + dst++; + /* highlight on */ + memcpy(dst, term_so, strlen(term_so)); + dst += strlen(term_so); + /* the actual text (minus leading space) */ + len--; + src++; + memcpy(dst, src, len); + dst += len; + /* highlight off */ + memcpy(dst, term_se, strlen(term_se)); + *extralen = strlen(term_so) + strlen(term_se); + return; + } + + /* + * Otherwise, print a _, backspace and the letter + */ + *extralen = 0; + /* skip leading space */ + src++; + len--; + /* separator */ + dst[0] = ' '; + dst++; + while (len > 0) { + /* _ and backspace */ + memcpy(dst, "_\010", 2); + dst += 2; + *extralen += 2; + /* the character */ + *dst++ = *src++; + len--; + } +}
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