75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
--- src/pstree.c
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+++ src/pstree.c 2010-07-13 10:27:54.139239142 +0000
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@@ -61,6 +61,7 @@ extern const char *__progname;
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#define UTF_HD "\342\224\254" /* U+252C, Horizontal and down */
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#define VT_BEG "\033(0\017" /* use graphic chars */
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+#define VT_LEN 4
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#define VT_END "\033(B" /* back to normal char set */
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#define VT_V "x" /* see UTF definitions above */
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#define VT_VR "t"
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@@ -230,6 +231,27 @@ static void out_scontext(security_contex
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}
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#endif /*WITH_SELINUX */
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+/*
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+ * Only affects vt100 line drawing mode: Do not count the strlen of
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+ * VT_BEG to prevent doing end-of-line way too early:
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+ */
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+static void
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+out_sym (const char *str)
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+{
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+ int seq = 0;
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+ if (sym == &sym_vt100 && *str == '\033') {
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+ seq = 1;
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+ if (cur_x <= output_width || !trunc)
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+ cur_x -= VT_LEN;
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+ }
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+ out_string(str);
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+ if (seq) {
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+ str = VT_END;
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+ while (*str)
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+ putchar (*str++);
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+ }
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+}
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+
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static void out_newline(void)
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{
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@@ -426,11 +448,12 @@ dump_tree(PROC * current, int level, int
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for (lvl = 0; lvl < level; lvl++) {
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for (i = width[lvl] + 1; i; i--)
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out_char(' ');
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- out_string(lvl ==
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- level -
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- 1 ? last ? sym->last_2 : sym->branch_2 : more[lvl +
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- 1] ?
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- sym->vert_2 : sym->empty_2);
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+ /*
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+ * Replace all three symbol-drawing calls with calls to out_sym()
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+ * to handle VT100 line drawing sequences if VT100 mode is active:
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+ */
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+ out_sym(lvl == level - 1 ? last ? sym->last_2 : sym->branch_2 :
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+ more[lvl + 1] ? sym->vert_2 : sym->empty_2);
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}
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if (rep < 2)
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add = 0;
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@@ -531,7 +554,7 @@ dump_tree(PROC * current, int level, int
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}
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width[level] = comm_len + cur_x - offset + add;
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if (cur_x >= output_width && trunc) {
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- out_string(sym->first_3);
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+ out_sym(sym->first_3);
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out_string("+");
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out_newline();
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return;
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@@ -553,7 +576,7 @@ dump_tree(PROC * current, int level, int
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}
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}
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if (first) {
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- out_string(next ? sym->first_3 : sym->single_3);
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+ out_sym(next ? sym->first_3 : sym->single_3);
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first = 0;
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}
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dump_tree(walk->child, level + 1, count + 1,
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